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authorrwatson <rwatson@FreeBSD.org>2008-02-10 11:18:12 +0000
committerrwatson <rwatson@FreeBSD.org>2008-02-10 11:18:12 +0000
commit8a831a9f229e9937f69438b24d24d98c3724324d (patch)
tree06c9a6b7d2003593aeebef70f62add3f95c146af
parent3474d93d402c549a8b2873e66ce3816f3747ecd2 (diff)
downloadFreeBSD-src-8a831a9f229e9937f69438b24d24d98c3724324d.zip
FreeBSD-src-8a831a9f229e9937f69438b24d24d98c3724324d.tar.gz
Since we're now actively maintaining the Coda module in the FreeBSD source
tree, restyle everything but coda.h (which is more explicitly shared across systems) into a closer approximation to style(9). Remove a few more unused function prototypes. Add or clarify some comments. MFC after: 1 month
-rw-r--r--sys/fs/coda/cnode.h163
-rw-r--r--sys/fs/coda/coda_fbsd.c75
-rw-r--r--sys/fs/coda/coda_io.h46
-rw-r--r--sys/fs/coda/coda_kernel.h59
-rw-r--r--sys/fs/coda/coda_namecache.c812
-rw-r--r--sys/fs/coda/coda_namecache.h233
-rw-r--r--sys/fs/coda/coda_opstats.h117
-rw-r--r--sys/fs/coda/coda_pioctl.h51
-rw-r--r--sys/fs/coda/coda_psdev.c970
-rw-r--r--sys/fs/coda/coda_psdev.h21
-rw-r--r--sys/fs/coda/coda_subr.c658
-rw-r--r--sys/fs/coda/coda_subr.h44
-rw-r--r--sys/fs/coda/coda_venus.c985
-rw-r--r--sys/fs/coda/coda_venus.h164
-rw-r--r--sys/fs/coda/coda_vfsops.c632
-rw-r--r--sys/fs/coda/coda_vfsops.h39
-rw-r--r--sys/fs/coda/coda_vnops.c2800
-rw-r--r--sys/fs/coda/coda_vnops.h87
18 files changed, 4002 insertions, 3954 deletions
diff --git a/sys/fs/coda/cnode.h b/sys/fs/coda/cnode.h
index 6f040c0..c1c5441 100644
--- a/sys/fs/coda/cnode.h
+++ b/sys/fs/coda/cnode.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,21 +14,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/cnode.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/cnode.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
/*-
@@ -53,25 +53,25 @@
MALLOC_DECLARE(M_CODA);
/*
- * tmp below since we need struct queue
+ * tmp below since we need struct queue.
*/
#include <fs/coda/coda_kernel.h>
/*
* Cnode lookup stuff.
+ *
* NOTE: CODA_CACHESIZE must be a power of 2 for cfshash to work!
*/
-#define CODA_CACHESIZE 512
-
-#define CODA_ALLOC(ptr, cast, size) \
-do { \
- ptr = (cast)malloc((unsigned long) size, M_CODA, M_WAITOK); \
- if (ptr == 0) { \
- panic("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
- } \
+#define CODA_CACHESIZE 512
+
+#define CODA_ALLOC(ptr, cast, size) do { \
+ ptr = (cast)malloc((unsigned long) size, M_CODA, M_WAITOK); \
+ if (ptr == NULL) \
+ panic("kernel malloc returns 0 at %s:%d\n", __FILE__, \
+ __LINE__); \
} while (0)
-#define CODA_FREE(ptr, size) free((ptr), M_CODA)
+#define CODA_FREE(ptr, size) free((ptr), M_CODA)
/*
* Used to select debugging statements throughout the cfs code.
@@ -82,41 +82,46 @@ extern int coda_vnop_print_entry;
extern int coda_psdev_print_entry;
extern int coda_vfsop_print_entry;
-#define CODADBGMSK(N) (1 << N)
-#define CODADEBUG(N, STMT) { if (codadebug & CODADBGMSK(N)) { STMT } }
-#define myprintf(args) \
-do { \
- if (coda_printf_delay) \
- DELAY(coda_printf_delay);\
- printf args ; \
+#define CODADBGMSK(N) (1 << N)
+
+#define CODADEBUG(N, STMT) do { \
+ if (codadebug & CODADBGMSK(N)) { \
+ STMT \
+ } \
+} while (0)
+
+#define myprintf(args) do { \
+ if (coda_printf_delay) \
+ DELAY(coda_printf_delay); \
+ printf args ; \
} while (0)
struct cnode {
- struct vnode *c_vnode;
- u_short c_flags; /* flags (see below) */
- CodaFid c_fid; /* file handle */
- struct vnode *c_ovp; /* open vnode pointer */
- u_short c_ocount; /* count of openers */
- u_short c_owrite; /* count of open for write */
- struct vattr c_vattr; /* attributes */
- char *c_symlink; /* pointer to symbolic link */
- u_short c_symlen; /* length of symbolic link */
- struct cnode *c_next; /* links if on FreeBSD machine */
+ struct vnode *c_vnode;
+ u_short c_flags; /* flags (see below) */
+ CodaFid c_fid; /* file handle */
+ struct vnode *c_ovp; /* open vnode pointer */
+ u_short c_ocount; /* count of openers */
+ u_short c_owrite; /* count of open for write */
+ struct vattr c_vattr; /* attributes */
+ char *c_symlink; /* pointer to symbolic link */
+ u_short c_symlen; /* length of symbolic link */
+ struct cnode *c_next; /* links if on FreeBSD machine */
};
#define VTOC(vp) ((struct cnode *)(vp)->v_data)
#define CTOV(cp) ((struct vnode *)((cp)->c_vnode))
/* flags */
-#define C_VATTR 0x01 /* Validity of vattr in the cnode */
-#define C_SYMLINK 0x02 /* Validity of symlink pointer in the Code */
-#define C_WANTED 0x08 /* Set if lock wanted */
-#define C_LOCKED 0x10 /* Set if lock held */
-#define C_UNMOUNTING 0X20 /* Set if unmounting */
-#define C_PURGING 0x40 /* Set if purging a fid */
+#define C_VATTR 0x01 /* Validity of vattr in the cnode */
+#define C_SYMLINK 0x02 /* Validity of symlink pointer in the Code */
+#define C_WANTED 0x08 /* Set if lock wanted */
+#define C_LOCKED 0x10 /* Set if lock held */
+#define C_UNMOUNTING 0X20 /* Set if unmounting */
+#define C_PURGING 0x40 /* Set if purging a fid */
-#define VALID_VATTR(cp) ((cp->c_flags) & C_VATTR)
-#define VALID_SYMLINK(cp) ((cp->c_flags) & C_SYMLINK)
-#define IS_UNMOUNTING(cp) ((cp)->c_flags & C_UNMOUNTING)
+#define VALID_VATTR(cp) ((cp->c_flags) & C_VATTR)
+#define VALID_SYMLINK(cp) ((cp->c_flags) & C_SYMLINK)
+#define IS_UNMOUNTING(cp) ((cp)->c_flags & C_UNMOUNTING)
struct vcomm {
u_long vc_seq;
@@ -125,9 +130,9 @@ struct vcomm {
struct queue vc_replys;
};
-#define VC_OPEN(vcp) ((vcp)->vc_requests.forw != NULL)
-#define MARK_VC_CLOSED(vcp) (vcp)->vc_requests.forw = NULL;
-#define MARK_VC_OPEN(vcp) /* MT */
+#define VC_OPEN(vcp) ((vcp)->vc_requests.forw != NULL)
+#define MARK_VC_CLOSED(vcp) (vcp)->vc_requests.forw = NULL;
+#define MARK_VC_OPEN(vcp) /* MT */
struct coda_clstat {
int ncalls; /* client requests */
@@ -137,61 +142,63 @@ struct coda_clstat {
extern struct coda_clstat coda_clstat;
/*
- * CODA structure to hold mount/filesystem information
+ * CODA structure to hold mount/filesystem information.
*/
struct coda_mntinfo {
- struct vnode *mi_rootvp;
- struct mount *mi_vfsp;
- struct vcomm mi_vcomm;
- struct cdev *dev;
- int mi_started;
- LIST_ENTRY(coda_mntinfo) mi_list;
+ struct vnode *mi_rootvp;
+ struct mount *mi_vfsp;
+ struct vcomm mi_vcomm;
+ struct cdev *dev;
+ int mi_started;
+ LIST_ENTRY(coda_mntinfo) mi_list;
};
struct coda_mntinfo *dev2coda_mntinfo(struct cdev *dev);
/*
- * vfs pointer to mount info
+ * vfs pointer to mount info.
*/
-#define vftomi(vfsp) ((struct coda_mntinfo *)(vfsp->mnt_data))
-#define CODA_MOUNTED(vfsp) (vftomi((vfsp)) != (struct coda_mntinfo *)0)
+#define vftomi(vfsp) ((struct coda_mntinfo *)(vfsp->mnt_data))
+#define CODA_MOUNTED(vfsp) (vftomi((vfsp)) != NULL)
/*
- * vnode pointer to mount info
+ * vnode pointer to mount info.
*/
-#define vtomi(vp) ((struct coda_mntinfo *)(vp->v_mount->mnt_data))
+#define vtomi(vp) ((struct coda_mntinfo *)(vp->v_mount->mnt_data))
/*
- * Used for identifying usage of "Control" object
+ * Used for identifying usage of "Control" object.
*/
extern struct vnode *coda_ctlvp;
-#define IS_CTL_VP(vp) ((vp) == coda_ctlvp)
-#define IS_CTL_NAME(vp, name, l)((l == CODA_CONTROLLEN) \
- && ((vp) == vtomi((vp))->mi_rootvp) \
- && strncmp(name, CODA_CONTROL, l) == 0)
-
-/*
- * An enum to tell us whether something that will remove a reference
- * to a cnode was a downcall or not
+#define IS_CTL_VP(vp) ((vp) == coda_ctlvp)
+#define IS_CTL_NAME(vp, name, l) ((l == CODA_CONTROLLEN) \
+ && ((vp) == vtomi((vp))->mi_rootvp) && \
+ strncmp(name, CODA_CONTROL, l) == 0)
+
+/*
+ * An enum to tell us whether something that will remove a reference to a
+ * cnode was a downcall or not.
*/
enum dc_status {
- IS_DOWNCALL = 6,
- NOT_DOWNCALL = 7
+ IS_DOWNCALL = 6,
+ NOT_DOWNCALL = 7
};
/* cfs_psdev.h */
-int coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize, caddr_t buffer);
+int coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize,
+ caddr_t buffer);
+
extern int coda_kernel_version;
/* cfs_subr.h */
-int handleDownCall(int opcode, union outputArgs *out);
-void coda_unmounting(struct mount *whoIam);
-int coda_vmflush(struct cnode *cp);
+int handleDownCall(int opcode, union outputArgs *out);
+void coda_unmounting(struct mount *whoIam);
+int coda_vmflush(struct cnode *cp);
/* cfs_vnodeops.h */
-struct cnode *make_coda_node(CodaFid *fid, struct mount *vfsp, short type);
-int coda_vnodeopstats_init(void);
+struct cnode *make_coda_node(CodaFid *fid, struct mount *vfsp, short type);
+int coda_vnodeopstats_init(void);
/* sigh */
-#define CODA_RDWR ((u_long) 31)
+#define CODA_RDWR ((u_long) 31)
-#endif /* _CNODE_H_ */
+#endif /* _CNODE_H_ */
diff --git a/sys/fs/coda/coda_fbsd.c b/sys/fs/coda/coda_fbsd.c
index ab1e360..765c3fd 100644
--- a/sys/fs/coda/coda_fbsd.c
+++ b/sys/fs/coda/coda_fbsd.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,18 +13,18 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_fbsd.cr,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
@@ -66,17 +66,20 @@ static eventhandler_tag clonetag;
static LIST_HEAD(, coda_mntinfo) coda_mnttbl;
-int vcdebug = 1;
-#define VCDEBUG if (vcdebug) printf
-
-/* for DEVFS, using bpf & tun drivers as examples*/
+/*
+ * For DEVFS, using bpf & tun drivers as examples.
+ *
+ * XXX: Why use a cloned interface, aren't we really just interested in
+ * having a single /dev/cfs0? It's not clear the coda module knows what to
+ * do with more than one.
+ */
static void coda_fbsd_clone(void *arg, struct ucred *cred, char *name,
int namelen, struct cdev **dev);
static int
codadev_modevent(module_t mod, int type, void *data)
{
- struct coda_mntinfo *mnt;
+ struct coda_mntinfo *mnt;
switch (type) {
case MOD_LOAD:
@@ -84,7 +87,14 @@ codadev_modevent(module_t mod, int type, void *data)
clonetag = EVENTHANDLER_REGISTER(dev_clone, coda_fbsd_clone,
0, 1000);
break;
+
case MOD_UNLOAD:
+ /*
+ * XXXRW: At the very least, a busy check should occur here
+ * to prevent untimely unload. Much more serious collection
+ * of allocated memory needs to take place; right now we leak
+ * like a sieve.
+ */
EVENTHANDLER_DEREGISTER(dev_clone, clonetag);
while ((mnt = LIST_FIRST(&coda_mnttbl)) != NULL) {
LIST_REMOVE(mnt, mi_list);
@@ -96,8 +106,9 @@ codadev_modevent(module_t mod, int type, void *data)
default:
return (EOPNOTSUPP);
}
- return 0;
+ return (0);
}
+
static moduledata_t codadev_mod = {
"codadev",
codadev_modevent,
@@ -105,37 +116,33 @@ static moduledata_t codadev_mod = {
};
DECLARE_MODULE(codadev, codadev_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
-static void coda_fbsd_clone(arg, cred, name, namelen, dev)
- void *arg;
- struct ucred *cred;
- char *name;
- int namelen;
- struct cdev **dev;
+static void
+coda_fbsd_clone(void *arg, struct ucred *cred, char *name, int namelen,
+ struct cdev **dev)
{
- int u;
- struct coda_mntinfo *mnt;
-
- if (*dev != NULL)
- return;
- if (dev_stdclone(name,NULL,"cfs",&u) != 1)
- return;
-
- *dev = make_dev(&codadevsw,unit2minor(u),UID_ROOT,GID_WHEEL,0600,"cfs%d",u);
- dev_ref(*dev);
- mnt = malloc(sizeof(struct coda_mntinfo), M_CODA, M_WAITOK|M_ZERO);
- LIST_INSERT_HEAD(&coda_mnttbl, mnt, mi_list);
- mnt->dev = *dev;
+ struct coda_mntinfo *mnt;
+ int u;
+
+ if (*dev != NULL)
+ return;
+ if (dev_stdclone(name, NULL, "cfs", &u) != 1)
+ return;
+ *dev = make_dev(&codadevsw, unit2minor(u), UID_ROOT, GID_WHEEL, 0600,
+ "cfs%d", u);
+ dev_ref(*dev);
+ mnt = malloc(sizeof(struct coda_mntinfo), M_CODA, M_WAITOK|M_ZERO);
+ LIST_INSERT_HEAD(&coda_mnttbl, mnt, mi_list);
+ mnt->dev = *dev;
}
struct coda_mntinfo *
dev2coda_mntinfo(struct cdev *dev)
{
- struct coda_mntinfo *mnt;
+ struct coda_mntinfo *mnt;
LIST_FOREACH(mnt, &coda_mnttbl, mi_list) {
if (mnt->dev == dev)
- return mnt;
+ return (mnt);
}
-
- return NULL;
+ return (NULL);
}
diff --git a/sys/fs/coda/coda_io.h b/sys/fs/coda/coda_io.h
index 1985b01..6058cf0 100644
--- a/sys/fs/coda/coda_io.h
+++ b/sys/fs/coda/coda_io.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,21 +14,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_io.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_io.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
/*-
@@ -45,15 +45,29 @@
*/
#ifndef _CODAIO_H_
-#define _CODAIO_H_
+#define _CODAIO_H_
-/* Define ioctl commands for vcioctl, /dev/cfs */
+/*
+ * Define ioctl commands for vcioctl, /dev/cfs.
+ *
+ * Resize Coda namecache.
+ */
+#define CODARESIZE _IOW('c', 1, struct coda_resize)
-#define CODARESIZE _IOW('c', 1, struct coda_resize ) /* Resize CODA NameCache */
-#define CODASTATS _IO('c', 2) /* Collect stats */
-#define CODAPRINT _IO('c', 3) /* Print Cache */
-#define CODATEST _IO('c', 4) /* Print Cache */
+/*
+ * Collect statistics.
+ */
+#define CODASTATS _IO('c', 2)
+
+/*
+ * Print cache.
+ */
+#define CODAPRINT _IO('c', 3)
+#define CODATEST _IO('c', 4)
-struct coda_resize { int hashsize, heapsize; };
+struct coda_resize {
+ int hashsize;
+ int heapsize;
+};
-#endif
+#endif /* !_CODAIO_H_ */
diff --git a/sys/fs/coda/coda_kernel.h b/sys/fs/coda/coda_kernel.h
index fd365b8..a326063 100644
--- a/sys/fs/coda/coda_kernel.h
+++ b/sys/fs/coda/coda_kernel.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,53 +14,54 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_kernel.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_kernel.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
-/* Macros to manipulate the queue */
+/*
+ * Macros to manipulate the queue.
+ *
+ * XXX: It would be good to replace this with use of queue(9) throughout the
+ * Coda kernel module.
+ */
#ifndef INIT_QUEUE
+
struct queue {
- struct queue *forw, *back;
+ struct queue *forw, *back;
};
-#define INIT_QUEUE(head) \
-do { \
- (head).forw = (struct queue *)&(head); \
- (head).back = (struct queue *)&(head); \
+#define INIT_QUEUE(head) do { \
+ (head).forw = (struct queue *)&(head); \
+ (head).back = (struct queue *)&(head); \
} while (0)
-#define GETNEXT(head) (head).forw
-
-#define EMPTY(head) ((head).forw == &(head))
+#define GETNEXT(head) (head).forw
+#define EMPTY(head) ((head).forw == &(head))
+#define EOQ(el, head) ((struct queue *)(el) == (struct queue *)&(head))
-#define EOQ(el, head) ((struct queue *)(el) == (struct queue *)&(head))
-
-#define INSQUE(el, head) \
-do { \
- (el).forw = ((head).back)->forw; \
- (el).back = (head).back; \
- ((head).back)->forw = (struct queue *)&(el); \
- (head).back = (struct queue *)&(el); \
+#define INSQUE(el, head) do { \
+ (el).forw = ((head).back)->forw; \
+ (el).back = (head).back; \
+ ((head).back)->forw = (struct queue *)&(el); \
+ (head).back = (struct queue *)&(el); \
} while (0)
-#define REMQUE(el) \
-do { \
- ((el).forw)->back = (el).back; \
- (el).back->forw = (el).forw; \
+#define REMQUE(el) do { \
+ ((el).forw)->back = (el).back; \
+ (el).back->forw = (el).forw; \
} while (0)
#endif
diff --git a/sys/fs/coda/coda_namecache.c b/sys/fs/coda/coda_namecache.c
index 4fed042..617634f 100644
--- a/sys/fs/coda/coda_namecache.c
+++ b/sys/fs/coda/coda_namecache.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,18 +13,18 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_namecache.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
/*-
@@ -41,33 +41,34 @@
*/
/*
- * This module contains the routines to implement the CODA name cache. The
- * purpose of this cache is to reduce the cost of translating pathnames
- * into Vice FIDs. Each entry in the cache contains the name of the file,
- * the vnode (FID) of the parent directory, and the cred structure of the
- * user accessing the file.
+ * This module contains the routines to implement the CODA name cache. The
+ * purpose of this cache is to reduce the cost of translating pathnames into
+ * Vice FIDs. Each entry in the cache contains the name of the file, the
+ * vnode (FID) of the parent directory, and the cred structure of the user
+ * accessing the file.
*
* The first time a file is accessed, it is looked up by the local Venus
- * which first insures that the user has access to the file. In addition
- * we are guaranteed that Venus will invalidate any name cache entries in
- * case the user no longer should be able to access the file. For these
- * reasons we do not need to keep access list information as well as a
- * cred structure for each entry.
+ * which first ensures that the user has access to the file. In addition we
+ * are guaranteed that Venus will invalidate any name cache entries in case
+ * the user no longer should be able to access the file. For these reasons we
+ * do not need to keep access list information as well as a cred structure
+ * for each entry.
*
- * The table can be accessed through the routines cnc_init(), cnc_enter(),
- * cnc_lookup(), cnc_rmfidcred(), cnc_rmfid(), cnc_rmcred(), and cnc_purge().
- * There are several other routines which aid in the implementation of the
- * hash table.
+ * The table can be accessed through the routines coda_nc_init(),
+ * coda_nc_enter(), coda_nc_lookup(), coda_nc_rmfidcred(), coda_nc_rmfid(),
+ * coda_nc_rmcred(), and coda_nc_purge(). There are several other routines
+ * which aid in the implementation of the hash table.
*/
-/*
+/*-
* NOTES: rvb@cs
- * 1. The name cache holds a reference to every vnode in it. Hence files can not be
- * closed or made inactive until they are released.
- * 2. coda_nc_name(cp) was added to get a name for a cnode pointer for debugging.
- * 3. coda_nc_find() has debug code to detect when entries are stored with different
- * credentials. We don't understand yet, if/how entries are NOT EQ but still
- * EQUAL
+ * 1. The name cache holds a reference to every vnode in it. Hence files
+ * can not be closed or made inactive until they are released.
+ * 2. coda_nc_name(cp) was added to get a name for a cnode pointer for
+ * debugging.
+ * 3. coda_nc_find() has debug code to detect when entries are stored with
+ * different credentials. We don't understand yet, if/how entries are
+ * NOT EQ but still EQUAL.
* 4. I wonder if this name cache could be replace by the vnode name cache.
* The latter has no zapping functions, so probably not.
*/
@@ -90,290 +91,268 @@ __FBSDID("$FreeBSD$");
#include <fs/coda/cnode.h>
#include <fs/coda/coda_namecache.h>
-#ifdef DEBUG
+#ifdef DEBUG
#include <fs/coda/coda_vnops.h>
#endif
-/*
+/*
* Declaration of the name cache data structure.
*/
+int coda_nc_use = 1; /* Indicate use of CODA Name Cache */
+int coda_nc_size = CODA_NC_CACHESIZE; /* size of the cache */
+int coda_nc_hashsize = CODA_NC_HASHSIZE; /* size of the primary hash */
-int coda_nc_use = 1; /* Indicate use of CODA Name Cache */
-int coda_nc_size = CODA_NC_CACHESIZE; /* size of the cache */
-int coda_nc_hashsize = CODA_NC_HASHSIZE; /* size of the primary hash */
-
-struct coda_cache *coda_nc_heap; /* pointer to the cache entries */
-struct coda_hash *coda_nc_hash; /* hash table of coda_cache pointers */
-struct coda_lru coda_nc_lru; /* head of lru chain */
-
+struct coda_cache *coda_nc_heap; /* pointer to the cache entries */
+struct coda_hash *coda_nc_hash; /* hash table of coda_cache pointers */
+struct coda_lru coda_nc_lru; /* head of lru chain */
struct coda_nc_statistics coda_nc_stat; /* Keep various stats */
-/*
- * for testing purposes
+/*
+ * For testing purposes.
*/
int coda_nc_debug = 0;
/*
- * Entry points for the CODA Name Cache
+ * Entry points for the CODA Name Cache.
*/
-static struct coda_cache *coda_nc_find(struct cnode *dcp, const char *name, int namelen,
- struct ucred *cred, int hash);
-static void coda_nc_remove(struct coda_cache *cncp, enum dc_status dcstat);
+static struct coda_cache *coda_nc_find(struct cnode *dcp,
+ const char *name, int namelen,
+ struct ucred *cred, int hash);
+static void coda_nc_remove(struct coda_cache *cncp,
+ enum dc_status dcstat);
-/*
- * Initialize the cache, the LRU structure and the Hash structure(s)
+/*
+ * Initialize the cache, the LRU structure and the Hash structure(s).
*/
-
-#define TOTAL_CACHE_SIZE (sizeof(struct coda_cache) * coda_nc_size)
-#define TOTAL_HASH_SIZE (sizeof(struct coda_hash) * coda_nc_hashsize)
+#define TOTAL_CACHE_SIZE (sizeof(struct coda_cache) * coda_nc_size)
+#define TOTAL_HASH_SIZE (sizeof(struct coda_hash) * coda_nc_hashsize)
int coda_nc_initialized = 0; /* Initially the cache has not been initialized */
void
coda_nc_init(void)
{
- int i;
+ int i;
- /* zero the statistics structure */
-
- bzero(&coda_nc_stat, (sizeof(struct coda_nc_statistics)));
+ bzero(&coda_nc_stat, (sizeof(struct coda_nc_statistics)));
-#ifdef CODA_VERBOSE
- printf("CODA NAME CACHE: CACHE %d, HASH TBL %d\n", CODA_NC_CACHESIZE, CODA_NC_HASHSIZE);
+#ifdef CODA_VERBOSE
+ printf("CODA NAME CACHE: CACHE %d, HASH TBL %d\n", CODA_NC_CACHESIZE,
+ CODA_NC_HASHSIZE);
#endif
- CODA_ALLOC(coda_nc_heap, struct coda_cache *, TOTAL_CACHE_SIZE);
- CODA_ALLOC(coda_nc_hash, struct coda_hash *, TOTAL_HASH_SIZE);
-
- coda_nc_lru.lru_next =
- coda_nc_lru.lru_prev = (struct coda_cache *)LRU_PART(&coda_nc_lru);
-
-
- for (i=0; i < coda_nc_size; i++) { /* initialize the heap */
- CODA_NC_LRUINS(&coda_nc_heap[i], &coda_nc_lru);
- CODA_NC_HSHNUL(&coda_nc_heap[i]);
- coda_nc_heap[i].cp = coda_nc_heap[i].dcp = (struct cnode *)0;
- }
-
- for (i=0; i < coda_nc_hashsize; i++) { /* initialize the hashtable */
- CODA_NC_HSHNUL((struct coda_cache *)&coda_nc_hash[i]);
- }
-
- coda_nc_initialized++;
+ CODA_ALLOC(coda_nc_heap, struct coda_cache *, TOTAL_CACHE_SIZE);
+ CODA_ALLOC(coda_nc_hash, struct coda_hash *, TOTAL_HASH_SIZE);
+ coda_nc_lru.lru_next = coda_nc_lru.lru_prev =
+ (struct coda_cache *)LRU_PART(&coda_nc_lru);
+
+ /*
+ * Initialize the heap.
+ */
+ for (i=0; i < coda_nc_size; i++) {
+ CODA_NC_LRUINS(&coda_nc_heap[i], &coda_nc_lru);
+ CODA_NC_HSHNUL(&coda_nc_heap[i]);
+ coda_nc_heap[i].cp = coda_nc_heap[i].dcp = NULL;
+ }
+
+ /*
+ * Initialize the hashtable.
+ */
+ for (i=0; i < coda_nc_hashsize; i++)
+ CODA_NC_HSHNUL((struct coda_cache *)&coda_nc_hash[i]);
+ coda_nc_initialized++;
}
/*
- * Auxillary routines -- shouldn't be entry points
+ * Auxillary routines -- shouldn't be entry points.
*/
-
static struct coda_cache *
-coda_nc_find(dcp, name, namelen, cred, hash)
- struct cnode *dcp;
- const char *name;
- int namelen;
- struct ucred *cred;
- int hash;
+coda_nc_find(struct cnode *dcp, const char *name, int namelen,
+ struct ucred *cred, int hash)
{
- /*
- * hash to find the appropriate bucket, look through the chain
- * for the right entry (especially right cred, unless cred == 0)
- */
struct coda_cache *cncp;
int count = 1;
- CODA_NC_DEBUG(CODA_NC_FIND,
- myprintf(("coda_nc_find(dcp %p, name %s, len %d, cred %p, hash %d\n",
- dcp, name, namelen, cred, hash));)
-
- for (cncp = coda_nc_hash[hash].hash_next;
- cncp != (struct coda_cache *)&coda_nc_hash[hash];
- cncp = cncp->hash_next, count++)
- {
-
- if ((CODA_NAMEMATCH(cncp, name, namelen, dcp)) &&
- ((cred == 0) || (cncp->cred == cred)))
- {
- /* compare cr_uid instead */
- coda_nc_stat.Search_len += count;
- return(cncp);
- }
-#ifdef DEBUG
- else if (CODA_NAMEMATCH(cncp, name, namelen, dcp)) {
- printf("coda_nc_find: name %s, new cred = %p, cred = %p\n",
- name, cred, cncp->cred);
- printf("nref %d, nuid %d, ngid %d // oref %d, ocred %d, ogid %d\n",
- cred->cr_ref, cred->cr_uid, cred->cr_gid,
- cncp->cred->cr_ref, cncp->cred->cr_uid, cncp->cred->cr_gid);
- coda_print_cred(cred);
- coda_print_cred(cncp->cred);
- }
+ /*
+ * Hash to find the appropriate bucket, look through the chain for
+ * the right entry (especially right cred, unless cred == 0).
+ */
+ CODA_NC_DEBUG(CODA_NC_FIND, myprintf(("coda_nc_find(dcp %p, name %s, "
+ "len %d, cred %p, hash %d\n", dcp, name, namelen, cred, hash)););
+ for (cncp = coda_nc_hash[hash].hash_next;
+ cncp != (struct coda_cache *)&coda_nc_hash[hash];
+ cncp = cncp->hash_next, count++) {
+ if ((CODA_NAMEMATCH(cncp, name, namelen, dcp)) &&
+ ((cred == 0) || (cncp->cred == cred))) {
+ /* Compare cr_uid instead. */
+ coda_nc_stat.Search_len += count;
+ return (cncp);
+ }
+#ifdef DEBUG
+ else if (CODA_NAMEMATCH(cncp, name, namelen, dcp)) {
+ printf("coda_nc_find: name %s, new cred = %p, "
+ "cred = %p\n", name, cred, cncp->cred);
+ printf("nref %d, nuid %d, ngid %d // oref %d, "
+ "ocred %d, ogid %d\n", cred->cr_ref,
+ cred->cr_uid, cred->cr_gid, cncp->cred->cr_ref,
+ cncp->cred->cr_uid, cncp->cred->cr_gid);
+ coda_print_cred(cred);
+ coda_print_cred(cncp->cred);
+ }
#endif
}
-
- return((struct coda_cache *)0);
+ return (NULL);
}
/*
- * Enter a new (dir cnode, name) pair into the cache, updating the
- * LRU and Hash as needed.
+ * Enter a new (dir cnode, name) pair into the cache, updating the LRU and
+ * Hash as needed.
*/
void
-coda_nc_enter(dcp, name, namelen, cred, cp)
- struct cnode *dcp;
- const char *name;
- int namelen;
- struct ucred *cred;
- struct cnode *cp;
+coda_nc_enter(struct cnode *dcp, const char *name, int namelen,
+ struct ucred *cred, struct cnode *cp)
{
- struct coda_cache *cncp;
- int hash;
-
- if (coda_nc_use == 0) /* Cache is off */
- return;
-
- CODA_NC_DEBUG(CODA_NC_ENTER,
- myprintf(("Enter: dcp %p cp %p name %s cred %p \n",
- dcp, cp, name, cred)); )
-
- if (namelen > CODA_NC_NAMELEN) {
- CODA_NC_DEBUG(CODA_NC_ENTER,
- myprintf(("long name enter %s\n",name));)
- coda_nc_stat.long_name_enters++; /* record stats */
- return;
- }
-
- hash = CODA_NC_HASH(name, namelen, dcp);
- cncp = coda_nc_find(dcp, name, namelen, cred, hash);
- if (cncp != (struct coda_cache *) 0) {
- coda_nc_stat.dbl_enters++; /* duplicate entry */
- return;
- }
-
- coda_nc_stat.enters++; /* record the enters statistic */
-
- /* Grab the next element in the lru chain */
- cncp = CODA_NC_LRUGET(coda_nc_lru);
-
- CODA_NC_LRUREM(cncp); /* remove it from the lists */
-
- if (CODA_NC_VALID(cncp)) {
- /* Seems really ugly, but we have to decrement the appropriate
- hash bucket length here, so we have to find the hash bucket
- */
- coda_nc_hash[CODA_NC_HASH(cncp->name, cncp->namelen, cncp->dcp)].length--;
-
- coda_nc_stat.lru_rm++; /* zapped a valid entry */
- CODA_NC_HSHREM(cncp);
- vrele(CTOV(cncp->dcp));
- vrele(CTOV(cncp->cp));
- crfree(cncp->cred);
- }
-
- /*
- * Put a hold on the current vnodes and fill in the cache entry.
- */
- vref(CTOV(cp));
- vref(CTOV(dcp));
- cncp->dcp = dcp;
- cncp->cp = cp;
- cncp->namelen = namelen;
- cncp->cred = crhold(cred);
-
- bcopy(name, cncp->name, (unsigned)namelen);
-
- /* Insert into the lru and hash chains. */
-
- CODA_NC_LRUINS(cncp, &coda_nc_lru);
- CODA_NC_HSHINS(cncp, &coda_nc_hash[hash]);
- coda_nc_hash[hash].length++; /* Used for tuning */
-
- CODA_NC_DEBUG(CODA_NC_PRINTCODA_NC, print_coda_nc(); )
+ struct coda_cache *cncp;
+ int hash;
+
+ if (coda_nc_use == 0)
+ return;
+ CODA_NC_DEBUG(CODA_NC_ENTER, myprintf(("Enter: dcp %p cp %p name %s "
+ "cred %p \n", dcp, cp, name, cred)); );
+ if (namelen > CODA_NC_NAMELEN) {
+ CODA_NC_DEBUG(CODA_NC_ENTER, myprintf(("long name enter %s\n",
+ name)););
+ coda_nc_stat.long_name_enters++;
+ return;
+ }
+ hash = CODA_NC_HASH(name, namelen, dcp);
+ cncp = coda_nc_find(dcp, name, namelen, cred, hash);
+ if (cncp != NULL) {
+ /*
+ * Duplicate entry.
+ */
+ coda_nc_stat.dbl_enters++;
+ return;
+ }
+ coda_nc_stat.enters++;
+
+ /*
+ * Grab the next element in the LRU chain.
+ */
+ cncp = CODA_NC_LRUGET(coda_nc_lru);
+
+ /*
+ * Remove it from the lists.
+ */
+ CODA_NC_LRUREM(cncp);
+ if (CODA_NC_VALID(cncp)) {
+ /*
+ * Seems really ugly, but we have to decrement the
+ * appropriate hash bucket length here, so we have to find
+ * the hash bucket.
+ */
+ coda_nc_hash[CODA_NC_HASH(cncp->name, cncp->namelen,
+ cncp->dcp)].length--;
+ coda_nc_stat.lru_rm++; /* Zapped a valid entry. */
+ CODA_NC_HSHREM(cncp);
+ vrele(CTOV(cncp->dcp));
+ vrele(CTOV(cncp->cp));
+ crfree(cncp->cred);
+ }
+
+ /*
+ * Put a hold on the current vnodes and fill in the cache entry.
+ */
+ vref(CTOV(cp));
+ vref(CTOV(dcp));
+ cncp->dcp = dcp;
+ cncp->cp = cp;
+ cncp->namelen = namelen;
+ cncp->cred = crhold(cred);
+ bcopy(name, cncp->name, (unsigned)namelen);
+
+ /*
+ * Insert into the lru and hash chains.
+ */
+ CODA_NC_LRUINS(cncp, &coda_nc_lru);
+ CODA_NC_HSHINS(cncp, &coda_nc_hash[hash]);
+ coda_nc_hash[hash].length++; /* Used for tuning. */
+ CODA_NC_DEBUG(CODA_NC_PRINTCODA_NC, print_coda_nc(););
}
/*
- * Find the (dir cnode, name) pair in the cache, if it's cred
- * matches the input, return it, otherwise return 0
+ * Find the (dir cnode, name) pair in the cache, if its cred matches the
+ * input, return it, otherwise return NULL.
*/
struct cnode *
-coda_nc_lookup(dcp, name, namelen, cred)
- struct cnode *dcp;
- const char *name;
- int namelen;
- struct ucred *cred;
+coda_nc_lookup(struct cnode *dcp, const char *name, int namelen,
+ struct ucred *cred)
{
- int hash;
struct coda_cache *cncp;
+ int hash;
- if (coda_nc_use == 0) /* Cache is off */
- return((struct cnode *) 0);
-
+ if (coda_nc_use == 0)
+ return (NULL);
if (namelen > CODA_NC_NAMELEN) {
- CODA_NC_DEBUG(CODA_NC_LOOKUP,
- myprintf(("long name lookup %s\n",name));)
- coda_nc_stat.long_name_lookups++; /* record stats */
- return((struct cnode *) 0);
+ CODA_NC_DEBUG(CODA_NC_LOOKUP, myprintf(("long name lookup "
+ "%s\n",name)););
+ coda_nc_stat.long_name_lookups++;
+ return (NULL);
}
- /* Use the hash function to locate the starting point,
- then the search routine to go down the list looking for
- the correct cred.
+ /*
+ * Use the hash function to locate the starting point, then the
+ * search routine to go down the list looking for the correct cred.
*/
-
hash = CODA_NC_HASH(name, namelen, dcp);
cncp = coda_nc_find(dcp, name, namelen, cred, hash);
- if (cncp == (struct coda_cache *) 0) {
- coda_nc_stat.misses++; /* record miss */
- return((struct cnode *) 0);
+ if (cncp == NULL) {
+ coda_nc_stat.misses++;
+ return (NULL);
}
-
coda_nc_stat.hits++;
- /* put this entry at the end of the LRU */
+ /*
+ * Put this entry at the end of the LRU.
+ */
CODA_NC_LRUREM(cncp);
CODA_NC_LRUINS(cncp, &coda_nc_lru);
- /* move it to the front of the hash chain */
- /* don't need to change the hash bucket length */
+ /*
+ * Move it to the front of the hash chain; don't need to change the
+ * hash bucket length.
+ */
CODA_NC_HSHREM(cncp);
CODA_NC_HSHINS(cncp, &coda_nc_hash[hash]);
-
- CODA_NC_DEBUG(CODA_NC_LOOKUP,
- printf("lookup: dcp %p, name %s, cred %p = cp %p\n",
- dcp, name, cred, cncp->cp); )
-
- return(cncp->cp);
+ CODA_NC_DEBUG(CODA_NC_LOOKUP, printf("lookup: dcp %p, name %s, cred "
+ "%p = cp %p\n", dcp, name, cred, cncp->cp););
+ return (cncp->cp);
}
static void
-coda_nc_remove(cncp, dcstat)
- struct coda_cache *cncp;
- enum dc_status dcstat;
+coda_nc_remove(struct coda_cache *cncp, enum dc_status dcstat)
{
- /*
- * remove an entry -- vrele(cncp->dcp, cp), crfree(cred),
- * remove it from it's hash chain, and
- * place it at the head of the lru list.
+
+ /*
+ * Remove an entry -- vrele(cncp->dcp, cp), crfree(cred), remove it
+ * from it's hash chain, and place it at the head of the lru list.
*/
- CODA_NC_DEBUG(CODA_NC_REMOVE,
- myprintf(("coda_nc_remove %s from parent %s\n",
- cncp->name, coda_f2s(&cncp->dcp->c_fid))); )
+ CODA_NC_DEBUG(CODA_NC_REMOVE, myprintf(("coda_nc_remove %s from "
+ "parent %s\n", cncp->name, coda_f2s(&cncp->dcp->c_fid))););
CODA_NC_HSHREM(cncp);
-
- CODA_NC_HSHNUL(cncp); /* have it be a null chain */
- if ((dcstat == IS_DOWNCALL) && (vrefcnt(CTOV(cncp->dcp)) == 1)) {
+ CODA_NC_HSHNUL(cncp); /* Have it be a null chain. */
+ if ((dcstat == IS_DOWNCALL) && (vrefcnt(CTOV(cncp->dcp)) == 1))
cncp->dcp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cncp->dcp));
-
- if ((dcstat == IS_DOWNCALL) && (vrefcnt(CTOV(cncp->cp)) == 1)) {
+ vrele(CTOV(cncp->dcp));
+ if ((dcstat == IS_DOWNCALL) && (vrefcnt(CTOV(cncp->cp)) == 1))
cncp->cp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cncp->cp));
-
- crfree(cncp->cred);
+ vrele(CTOV(cncp->cp));
+ crfree(cncp->cred);
bzero(DATA_PART(cncp),DATA_SIZE);
- /* Put the null entry just after the least-recently-used entry */
- /* LRU_TOP adjusts the pointer to point to the top of the structure. */
+ /*
+ * Put the null entry just after the least-recently-used entry.
+ * LRU_TOP adjusts the pointer to point to the top of the structure.
+ */
CODA_NC_LRUREM(cncp);
CODA_NC_LRUINS(cncp, LRU_TOP(coda_nc_lru.lru_prev));
}
@@ -382,258 +361,222 @@ coda_nc_remove(cncp, dcstat)
* Remove all entries with a parent which has the input fid.
*/
void
-coda_nc_zapParentfid(fid, dcstat)
- CodaFid *fid;
- enum dc_status dcstat;
+coda_nc_zapParentfid(CodaFid *fid, enum dc_status dcstat)
{
- /* To get to a specific fid, we might either have another hashing
- function or do a sequential search through the cache for the
- appropriate entries. The later may be acceptable since I don't
- think callbacks or whatever Case 1 covers are frequent occurences.
- */
struct coda_cache *cncp, *ncncp;
int i;
- if (coda_nc_use == 0) /* Cache is off */
- return;
-
- CODA_NC_DEBUG(CODA_NC_ZAPPFID,
- myprintf(("ZapParent: fid %s\n", coda_f2s(fid))); )
-
+ /*
+ * To get to a specific fid, we might either have another hashing
+ * function or do a sequential search through the cache for the
+ * appropriate entries. The later may be acceptable since I don't
+ * think callbacks or whatever Case 1 covers are frequent occurences.
+ */
+ if (coda_nc_use == 0)
+ return;
+ CODA_NC_DEBUG(CODA_NC_ZAPPFID, myprintf(("ZapParent: fid %s\n",
+ coda_f2s(fid))););
coda_nc_stat.zapPfids++;
-
for (i = 0; i < coda_nc_hashsize; i++) {
-
/*
* Need to save the hash_next pointer in case we remove the
* entry. remove causes hash_next to point to itself.
*/
-
- for (cncp = coda_nc_hash[i].hash_next;
+ for (cncp = coda_nc_hash[i].hash_next;
cncp != (struct coda_cache *)&coda_nc_hash[i];
cncp = ncncp) {
ncncp = cncp->hash_next;
if (coda_fid_eq(&(cncp->dcp->c_fid), fid)) {
- coda_nc_hash[i].length--; /* Used for tuning */
- coda_nc_remove(cncp, dcstat);
+ /* Used for tuning. */
+ coda_nc_hash[i].length--;
+ coda_nc_remove(cncp, dcstat);
}
}
}
}
/*
- * Remove all entries which have the same fid as the input
+ * Remove all entries which have the same fid as the input.
*/
void
-coda_nc_zapfid(fid, dcstat)
- CodaFid *fid;
- enum dc_status dcstat;
+coda_nc_zapfid(CodaFid *fid, enum dc_status dcstat)
{
- /* See comment for zapParentfid. This routine will be used
- if attributes are being cached.
- */
struct coda_cache *cncp, *ncncp;
int i;
- if (coda_nc_use == 0) /* Cache is off */
+ /*
+ * See comment for zapParentfid. This routine will be used if
+ * attributes are being cached.
+ */
+ if (coda_nc_use == 0)
return;
-
- CODA_NC_DEBUG(CODA_NC_ZAPFID,
- myprintf(("Zapfid: fid %s\n", coda_f2s(fid))); )
-
+ CODA_NC_DEBUG(CODA_NC_ZAPFID, myprintf(("Zapfid: fid %s\n",
+ coda_f2s(fid))););
coda_nc_stat.zapFids++;
-
for (i = 0; i < coda_nc_hashsize; i++) {
- for (cncp = coda_nc_hash[i].hash_next;
+ for (cncp = coda_nc_hash[i].hash_next;
cncp != (struct coda_cache *)&coda_nc_hash[i];
cncp = ncncp) {
ncncp = cncp->hash_next;
if (coda_fid_eq(&cncp->cp->c_fid, fid)) {
- coda_nc_hash[i].length--; /* Used for tuning */
- coda_nc_remove(cncp, dcstat);
+ /* Used for tuning. */
+ coda_nc_hash[i].length--;
+ coda_nc_remove(cncp, dcstat);
}
}
}
}
-/*
- * Remove all entries which match the fid and the cred
+/*
+ * Remove all entries which match the fid and the cred.
*
* XXX: This is unused.
*/
void
-coda_nc_zapvnode(fid, cred, dcstat)
- CodaFid *fid;
- struct ucred *cred;
- enum dc_status dcstat;
+coda_nc_zapvnode(CodaFid *fid, struct ucred *cred, enum dc_status dcsta)
{
- /* See comment for zapfid. I don't think that one would ever
- want to zap a file with a specific cred from the kernel.
- We'll leave this one unimplemented.
- */
- if (coda_nc_use == 0) /* Cache is off */
+ /*
+ * See comment for zapfid. I don't think that one would ever want to
+ * zap a file with a specific cred from the kernel. We'll leave this
+ * one unimplemented.
+ */
+ if (coda_nc_use == 0)
return;
-
- CODA_NC_DEBUG(CODA_NC_ZAPVNODE,
- myprintf(("Zapvnode: fid %s cred %p\n",
- coda_f2s(fid), cred)); )
+ CODA_NC_DEBUG(CODA_NC_ZAPVNODE, myprintf(("Zapvnode: fid %s cred "
+ "%p\n", coda_f2s(fid), cred)););
}
/*
- * Remove all entries which have the (dir vnode, name) pair
+ * Remove all entries which have the (dir vnode, name) pair.
*/
void
-coda_nc_zapfile(dcp, name, namelen)
- struct cnode *dcp;
- const char *name;
- int namelen;
+coda_nc_zapfile(struct cnode *dcp, const char *name, int namelen)
{
- /* use the hash function to locate the file, then zap all
- entries of it regardless of the cred.
- */
struct coda_cache *cncp;
int hash;
- if (coda_nc_use == 0) /* Cache is off */
+ /*
+ * use the hash function to locate the file, then zap all entries of
+ * it regardless of the cred.
+ */
+ if (coda_nc_use == 0)
return;
-
- CODA_NC_DEBUG(CODA_NC_ZAPFILE,
- myprintf(("Zapfile: dcp %p name %s \n",
- dcp, name)); )
-
+ CODA_NC_DEBUG(CODA_NC_ZAPFILE, myprintf(("Zapfile: dcp %p name %s\n",
+ dcp, name)););
if (namelen > CODA_NC_NAMELEN) {
- coda_nc_stat.long_remove++; /* record stats */
+ coda_nc_stat.long_remove++;
return;
}
-
coda_nc_stat.zapFile++;
-
hash = CODA_NC_HASH(name, namelen, dcp);
cncp = coda_nc_find(dcp, name, namelen, 0, hash);
-
while (cncp) {
- coda_nc_hash[hash].length--; /* Used for tuning */
-
- coda_nc_remove(cncp, NOT_DOWNCALL);
- cncp = coda_nc_find(dcp, name, namelen, 0, hash);
+ /* Used for tuning. */
+ coda_nc_hash[hash].length--;
+ coda_nc_remove(cncp, NOT_DOWNCALL);
+ cncp = coda_nc_find(dcp, name, namelen, 0, hash);
}
}
-/*
- * Remove all the entries for a particular user. Used when tokens expire.
- * A user is determined by his/her effective user id (id_uid).
+/*
+ * Remove all the entries for a particular user. Used when tokens expire. A
+ * user is determined by his/her effective user id (id_uid).
*/
void
-coda_nc_purge_user(uid, dcstat)
- uid_t uid;
- enum dc_status dcstat;
+coda_nc_purge_user(uid_t uid, enum dc_status dcstat)
{
- /*
- * I think the best approach is to go through the entire cache
- * via HASH or whatever and zap all entries which match the
- * input cred. Or just flush the whole cache. It might be
- * best to go through on basis of LRU since cache will almost
- * always be full and LRU is more straightforward.
- */
-
struct coda_cache *cncp, *ncncp;
int hash;
- if (coda_nc_use == 0) /* Cache is off */
+ /*
+ * I think the best approach is to go through the entire cache via
+ * HASH or whatever and zap all entries which match the input cred.
+ * Or just flush the whole cache. It might be best to go through on
+ * basis of LRU since cache will almost always be full and LRU is
+ * more straightforward.
+ */
+ if (coda_nc_use == 0)
return;
-
- CODA_NC_DEBUG(CODA_NC_PURGEUSER,
- myprintf(("ZapDude: uid %x\n", uid)); )
+ CODA_NC_DEBUG(CODA_NC_PURGEUSER, myprintf(("ZapDude: uid %x\n",
+ uid)););
coda_nc_stat.zapUsers++;
-
for (cncp = CODA_NC_LRUGET(coda_nc_lru);
cncp != (struct coda_cache *)(&coda_nc_lru);
cncp = ncncp) {
ncncp = CODA_NC_LRUGET(*cncp);
-
if ((CODA_NC_VALID(cncp)) &&
((cncp->cred)->cr_uid == uid)) {
- /* Seems really ugly, but we have to decrement the appropriate
- hash bucket length here, so we have to find the hash bucket
- */
- hash = CODA_NC_HASH(cncp->name, cncp->namelen, cncp->dcp);
- coda_nc_hash[hash].length--; /* For performance tuning */
-
- coda_nc_remove(cncp, dcstat);
+ /*
+ * Seems really ugly, but we have to decrement the
+ * appropriate hash bucket length here, so we have to
+ * find the hash bucket.
+ */
+ hash = CODA_NC_HASH(cncp->name, cncp->namelen,
+ cncp->dcp);
+ /* For performance tuning. */
+ coda_nc_hash[hash].length--;
+ coda_nc_remove(cncp, dcstat);
}
}
}
/*
- * Flush the entire name cache. In response to a flush of the Venus cache.
+ * Flush the entire name cache. In response to a flush of the Venus cache.
*/
void
-coda_nc_flush(dcstat)
- enum dc_status dcstat;
+coda_nc_flush(enum dc_status dcstat)
{
- /* One option is to deallocate the current name cache and
- call init to start again. Or just deallocate, then rebuild.
- Or again, we could just go through the array and zero the
- appropriate fields.
- */
-
- /*
- * Go through the whole lru chain and kill everything as we go.
- * I don't use remove since that would rebuild the lru chain
- * as it went and that seemed unneccesary.
- */
struct coda_cache *cncp;
int i;
- if (coda_nc_use == 0) /* Cache is off */
- return;
+ /*
+ * One option is to deallocate the current name cache and call init
+ * to start again. Or just deallocate, then rebuild. Or again, we
+ * could just go through the array and zero the appropriate fields.
+ */
+ /*
+ * Go through the whole lru chain and kill everything as we go. I
+ * don't use remove since that would rebuild the LRU chain as it went
+ * and that seemed unneccesary.
+ */
+ if (coda_nc_use == 0)
+ return;
coda_nc_stat.Flushes++;
-
for (cncp = CODA_NC_LRUGET(coda_nc_lru);
cncp != (struct coda_cache *)&coda_nc_lru;
cncp = CODA_NC_LRUGET(*cncp)) {
if (CODA_NC_VALID(cncp)) {
-
- CODA_NC_HSHREM(cncp); /* only zero valid nodes */
+ CODA_NC_HSHREM(cncp); /* Only zero valid nodes. */
CODA_NC_HSHNUL(cncp);
- if ((dcstat == IS_DOWNCALL)
- && (vrefcnt(CTOV(cncp->dcp)) == 1))
- {
+ if ((dcstat == IS_DOWNCALL) &&
+ (vrefcnt(CTOV(cncp->dcp)) == 1))
cncp->dcp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cncp->dcp));
-
+ vrele(CTOV(cncp->dcp));
ASSERT_VOP_LOCKED(CTOV(cncp->cp), "coda_nc_flush");
- if (CTOV(cncp->cp)->v_vflag & VV_TEXT) {
- if (coda_vmflush(cncp->cp))
- CODADEBUG(CODA_FLUSH,
- myprintf(("coda_nc_flush: %s busy\n",
- coda_f2s(&cncp->cp->c_fid))); )
- }
-
- if ((dcstat == IS_DOWNCALL)
- && (vrefcnt(CTOV(cncp->cp)) == 1))
- {
+ if (CTOV(cncp->cp)->v_vflag & VV_TEXT &&
+ coda_vmflush(cncp->cp))
+ CODADEBUG(CODA_FLUSH, myprintf(("coda_nc_"
+ "flush: %s busy\n", coda_f2s(
+ &cncp->cp->c_fid))););
+ if ((dcstat == IS_DOWNCALL) &&
+ (vrefcnt(CTOV(cncp->cp)) == 1))
cncp->cp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cncp->cp));
-
- crfree(cncp->cred);
+ vrele(CTOV(cncp->cp));
+ crfree(cncp->cred);
bzero(DATA_PART(cncp),DATA_SIZE);
}
}
-
for (i = 0; i < coda_nc_hashsize; i++)
- coda_nc_hash[i].length = 0;
+ coda_nc_hash[i].length = 0;
}
/*
- * Debugging routines
+ * Debugging routines.
*/
-/*
+/*
* This routine should print out all the hash chains to the console.
*/
void
@@ -644,52 +587,46 @@ print_coda_nc(void)
for (hash = 0; hash < coda_nc_hashsize; hash++) {
myprintf(("\nhash %d\n",hash));
-
- for (cncp = coda_nc_hash[hash].hash_next;
+ for (cncp = coda_nc_hash[hash].hash_next;
cncp != (struct coda_cache *)&coda_nc_hash[hash];
cncp = cncp->hash_next) {
myprintf(("cp %p dcp %p cred %p name %s\n",
- cncp->cp, cncp->dcp,
- cncp->cred, cncp->name));
- }
+ cncp->cp, cncp->dcp, cncp->cred, cncp->name));
+ }
}
}
void
coda_nc_gather_stats(void)
{
- int i, max = 0, sum = 0, temp, zeros = 0, ave, n;
+ int i, max = 0, sum = 0, temp, zeros = 0, ave, n;
for (i = 0; i < coda_nc_hashsize; i++) {
- if (coda_nc_hash[i].length) {
- sum += coda_nc_hash[i].length;
- } else {
- zeros++;
- }
-
- if (coda_nc_hash[i].length > max)
- max = coda_nc_hash[i].length;
+ if (coda_nc_hash[i].length)
+ sum += coda_nc_hash[i].length;
+ else
+ zeros++;
+ if (coda_nc_hash[i].length > max)
+ max = coda_nc_hash[i].length;
}
/*
- * When computing the Arithmetic mean, only count slots which
- * are not empty in the distribution.
+ * When computing the Arithmetic mean, only count slots which are not
+ * empty in the distribution.
*/
coda_nc_stat.Sum_bucket_len = sum;
coda_nc_stat.Num_zero_len = zeros;
coda_nc_stat.Max_bucket_len = max;
-
- if ((n = coda_nc_hashsize - zeros) > 0)
- ave = sum / n;
+ if ((n = coda_nc_hashsize - zeros) > 0)
+ ave = sum / n;
else
- ave = 0;
-
+ ave = 0;
sum = 0;
for (i = 0; i < coda_nc_hashsize; i++) {
- if (coda_nc_hash[i].length) {
- temp = coda_nc_hash[i].length - ave;
- sum += temp * temp;
- }
+ if (coda_nc_hash[i].length) {
+ temp = coda_nc_hash[i].length - ave;
+ sum += temp * temp;
+ }
}
coda_nc_stat.Sum2_bucket_len = sum;
}
@@ -701,33 +638,39 @@ coda_nc_gather_stats(void)
* is in an improper state (except by turning the cache off).
*/
int
-coda_nc_resize(hashsize, heapsize, dcstat)
- int hashsize, heapsize;
- enum dc_status dcstat;
+coda_nc_resize(int hashsize, int heapsize, enum dc_status dcstat)
{
- if ((hashsize % 2) || (heapsize % 2)) { /* Illegal hash or cache sizes */
- return(EINVAL);
- }
-
- coda_nc_use = 0; /* Turn the cache off */
-
- coda_nc_flush(dcstat); /* free any cnodes in the cache */
-
- /* WARNING: free must happen *before* size is reset */
- CODA_FREE(coda_nc_heap,TOTAL_CACHE_SIZE);
- CODA_FREE(coda_nc_hash,TOTAL_HASH_SIZE);
-
- coda_nc_hashsize = hashsize;
- coda_nc_size = heapsize;
-
- coda_nc_init(); /* Set up a cache with the new size */
-
- coda_nc_use = 1; /* Turn the cache back on */
- return(0);
+
+ /*
+ * Check for illegal hash or cache sizes.
+ */
+ if ((hashsize % 2) || (heapsize % 2))
+ return (EINVAL);
+
+ /*
+ * Turn off the cache and free any cnodes in the cache.
+ */
+ coda_nc_use = 0;
+ coda_nc_flush(dcstat);
+
+ /*
+ * WARNING: free must happen *before* size is reset.
+ */
+ CODA_FREE(coda_nc_heap,TOTAL_CACHE_SIZE);
+ CODA_FREE(coda_nc_hash,TOTAL_HASH_SIZE);
+
+ /*
+ * Set up a cache with the new size and turn the cache back on.
+ */
+ coda_nc_hashsize = hashsize;
+ coda_nc_size = heapsize;
+ coda_nc_init();
+ coda_nc_use = 1;
+ return (0);
}
-#ifdef DEBUG
-char coda_nc_name_buf[CODA_MAXNAMLEN+1];
+#ifdef DEBUG
+static char coda_nc_name_buf[CODA_MAXNAMLEN+1];
void
coda_nc_name(struct cnode *cp)
@@ -735,19 +678,20 @@ coda_nc_name(struct cnode *cp)
struct coda_cache *cncp, *ncncp;
int i;
- if (coda_nc_use == 0) /* Cache is off */
+ if (coda_nc_use == 0)
return;
for (i = 0; i < coda_nc_hashsize; i++) {
- for (cncp = coda_nc_hash[i].hash_next;
+ for (cncp = coda_nc_hash[i].hash_next;
cncp != (struct coda_cache *)&coda_nc_hash[i];
cncp = ncncp) {
ncncp = cncp->hash_next;
if (cncp->cp == cp) {
- bcopy(cncp->name, coda_nc_name_buf, cncp->namelen);
+ bcopy(cncp->name, coda_nc_name_buf,
+ cncp->namelen);
coda_nc_name_buf[cncp->namelen] = 0;
- printf(" is %s (%p,%p)@%p",
- coda_nc_name_buf, cncp->cp, cncp->dcp, cncp);
+ printf(" is %s (%p,%p)@%p", coda_nc_name_buf,
+ cncp->cp, cncp->dcp, cncp);
}
}
diff --git a/sys/fs/coda/coda_namecache.h b/sys/fs/coda/coda_namecache.h
index 637a0d0..87b60d7 100644
--- a/sys/fs/coda/coda_namecache.h
+++ b/sys/fs/coda/coda_namecache.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,21 +14,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_namecache.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_namecache.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
/*-
@@ -45,107 +45,117 @@
*/
#ifndef _CODA_NC_HEADER_
-#define _CODA_NC_HEADER_
+#define _CODA_NC_HEADER_
/*
- * Coda constants
+ * Coda constants.
*/
-#define CODA_NC_NAMELEN 15 /* longest name stored in cache */
-#define CODA_NC_CACHESIZE 256 /* Default cache size */
-#define CODA_NC_HASHSIZE 64 /* Must be multiple of 2 */
+#define CODA_NC_NAMELEN 15 /* Longest name stored in cache */
+#define CODA_NC_CACHESIZE 256 /* Default cache size */
+#define CODA_NC_HASHSIZE 64 /* Must be multiple of 2 */
/*
* Hash function for the primary hash.
- */
-
-/*
+ *
* First try -- (first + last letters + length + (int)cp) mod size
* 2nd try -- same, except dir fid.vnode instead of cp
*/
+#define CODA_NC_HASH(name, namelen, cp) \
+ ((name[0] + (name[namelen-1]<<4) + namelen + \
+ (((int)(intptr_t)cp)>>8)) & (coda_nc_hashsize-1))
-#define CODA_NC_HASH(name, namelen, cp) \
- ((name[0] + (name[namelen-1]<<4) + namelen + (((int)(intptr_t)cp)>>8)) & (coda_nc_hashsize-1))
-
-#define CODA_NAMEMATCH(cp, name, namelen, dcp) \
- ((namelen == cp->namelen) && (dcp == cp->dcp) && \
- (bcmp(cp->name,name,namelen) == 0))
+#define CODA_NAMEMATCH(cp, name, namelen, dcp) \
+ ((namelen == cp->namelen) && (dcp == cp->dcp) && \
+ (bcmp(cp->name,name,namelen) == 0))
/*
- * Functions to modify the hash and lru chains.
- * insque and remque assume that the pointers are the first thing
- * in the list node, thus the trickery for lru.
+ * Functions to modify the hash and LRU chains. insque and remque assume
+ * that the pointers are the first thing in the list node, thus the trickery
+ * for LRU.
*/
-
-#define CODA_NC_HSHINS(elem, pred) insque(elem,pred)
-#define CODA_NC_HSHREM(elem) remque(elem)
-#define CODA_NC_HSHNUL(elem) (elem)->hash_next = \
+#define CODA_NC_HSHINS(elem, pred) insque(elem,pred)
+#define CODA_NC_HSHREM(elem) remque(elem)
+#define CODA_NC_HSHNUL(elem) (elem)->hash_next = \
(elem)->hash_prev = (elem)
-#define CODA_NC_LRUINS(elem, pred) insque(LRU_PART(elem), LRU_PART(pred))
-#define CODA_NC_LRUREM(elem) remque(LRU_PART(elem));
-#define CODA_NC_LRUGET(lruhead) LRU_TOP((lruhead).lru_prev)
+#define CODA_NC_LRUINS(elem, pred) insque(LRU_PART(elem), LRU_PART(pred))
+#define CODA_NC_LRUREM(elem) remque(LRU_PART(elem));
+#define CODA_NC_LRUGET(lruhead) LRU_TOP((lruhead).lru_prev)
+
+#define CODA_NC_VALID(cncp) (cncp->dcp != (struct cnode *)0)
-#define CODA_NC_VALID(cncp) (cncp->dcp != (struct cnode *)0)
-
-#define LRU_PART(cncp) (struct coda_cache *) \
- ((char *)cncp + (2*sizeof(struct coda_cache *)))
-#define LRU_TOP(cncp) (struct coda_cache *) \
- ((char *)cncp - (2*sizeof(struct coda_cache *)))
-#define DATA_PART(cncp) (struct coda_cache *) \
- ((char *)cncp + (4*sizeof(struct coda_cache *)))
-#define DATA_SIZE (sizeof(struct coda_cache)-(4*sizeof(struct coda_cache *)))
+#define LRU_PART(cncp) (struct coda_cache *) ((char *)cncp + \
+ (2*sizeof(struct coda_cache *)))
+#define LRU_TOP(cncp) (struct coda_cache *) ((char *)cncp - \
+ (2*sizeof(struct coda_cache *)))
+#define DATA_PART(cncp) (struct coda_cache *) ((char *)cncp + \
+ (4*sizeof(struct coda_cache *)))
+#define DATA_SIZE (sizeof(struct coda_cache) - \
+ (4*sizeof(struct coda_cache *)))
/*
* Structure for an element in the CODA Name Cache.
- * NOTE: I use the position of arguments and their size in the
- * implementation of the functions CODA_NC_LRUINS, CODA_NC_LRUREM, and
- * DATA_PART.
+ *
+ * NOTE: I use the position of arguments and their size in the implementation
+ * of the functions CODA_NC_LRUINS, CODA_NC_LRUREM, and DATA_PART.
*/
-
-struct coda_cache {
- struct coda_cache *hash_next,*hash_prev; /* Hash list */
+struct coda_cache {
+ struct coda_cache *hash_next, *hash_prev; /* Hash list */
struct coda_cache *lru_next, *lru_prev; /* LRU list */
struct cnode *cp; /* vnode of the file */
struct cnode *dcp; /* parent's cnode */
struct ucred *cred; /* user credentials */
- char name[CODA_NC_NAMELEN]; /* segment name */
- int namelen; /* length of name */
+ char name[CODA_NC_NAMELEN]; /* segment name */
+ int namelen; /* length of name */
};
-struct coda_lru { /* Start of LRU chain */
- char *dummy1, *dummy2; /* place holders */
- struct coda_cache *lru_next, *lru_prev; /* position of pointers is important */
+/*
+ * Start of an LRU chain -- notice position of pointers.
+ */
+struct coda_lru {
+ char *dummy1, *dummy2;
+ struct coda_cache *lru_next, *lru_prev;
};
-
-struct coda_hash { /* Start of Hash chain */
- struct coda_cache *hash_next, *hash_prev; /* NOTE: chain pointers must be first */
- int length; /* used for tuning purposes */
+/*
+ * Start of Hash chain -- notice position of pointers -- chain pointers must
+ * be first.
+ */
+struct coda_hash {
+ struct coda_cache *hash_next, *hash_prev;
+ int length; /* Used for tuning purposes. */
};
-
-/*
- * Symbols to aid in debugging the namecache code. Assumes the existence
- * of the variable coda_nc_debug, which is defined in cfs_namecache.c
+/*
+ * Symbols to aid in debugging the namecache code. Assumes the existence of
+ * the variable coda_nc_debug, which is defined in cfs_namecache.c
*/
-#define CODA_NC_DEBUG(N, STMT) { if (coda_nc_debug & (1 <<N)) { STMT } }
-
-/* Prototypes of functions exported within cfs */
-void coda_nc_init(void);
-void coda_nc_enter(struct cnode *, const char *, int, struct ucred *, struct cnode *);
-struct cnode *coda_nc_lookup(struct cnode *, const char *, int, struct ucred *);
+#define CODA_NC_DEBUG(N, STMT) do { \
+ if (coda_nc_debug & (1 << N)) { \
+ STMT \
+ } \
+} while (0)
-void coda_nc_zapParentfid(CodaFid *, enum dc_status);
-void coda_nc_zapfid(CodaFid *, enum dc_status);
-void coda_nc_zapvnode(CodaFid *, struct ucred *, enum dc_status);
-void coda_nc_zapfile(struct cnode *, const char *, int);
-void coda_nc_purge_user(uid_t, enum dc_status);
-void coda_nc_flush(enum dc_status);
-
-void print_coda_nc(void);
-void coda_nc_gather_stats(void);
-int coda_nc_resize(int, int, enum dc_status);
-void coda_nc_name(struct cnode *cp);
+/*
+ * Prototypes of functions exported within cfs.
+ */
+void coda_nc_init(void);
+void coda_nc_enter(struct cnode *, const char *, int, struct ucred *,
+ struct cnode *);
+struct cnode *coda_nc_lookup(struct cnode *, const char *, int,
+ struct ucred *);
+
+void coda_nc_zapParentfid(CodaFid *, enum dc_status);
+void coda_nc_zapfid(CodaFid *, enum dc_status);
+void coda_nc_zapvnode(CodaFid *, struct ucred *, enum dc_status);
+void coda_nc_zapfile(struct cnode *, const char *, int);
+void coda_nc_purge_user(uid_t, enum dc_status);
+void coda_nc_flush(enum dc_status);
+
+void print_coda_nc(void);
+void coda_nc_gather_stats(void);
+int coda_nc_resize(int, int, enum dc_status);
+void coda_nc_name(struct cnode *cp);
/*
* Global variables tracking and controlling Coda namecache operation.
@@ -155,42 +165,41 @@ extern int coda_nc_initialized; /* Set if cache has been initialized */
extern int coda_nc_use; /* Indicate use of CODA Name Cache */
/*
- * Structure to contain statistics on the cache usage
+ * Structure to contain statistics on the cache usage.
*/
-
struct coda_nc_statistics {
- unsigned hits;
- unsigned misses;
- unsigned enters;
- unsigned dbl_enters;
- unsigned long_name_enters;
- unsigned long_name_lookups;
- unsigned long_remove;
- unsigned lru_rm;
- unsigned zapPfids;
- unsigned zapFids;
- unsigned zapFile;
- unsigned zapUsers;
- unsigned Flushes;
- unsigned Sum_bucket_len;
- unsigned Sum2_bucket_len;
- unsigned Max_bucket_len;
- unsigned Num_zero_len;
- unsigned Search_len;
+ u_int hits;
+ u_int misses;
+ u_int enters;
+ u_int dbl_enters;
+ u_int long_name_enters;
+ u_int long_name_lookups;
+ u_int long_remove;
+ u_int lru_rm;
+ u_int zapPfids;
+ u_int zapFids;
+ u_int zapFile;
+ u_int zapUsers;
+ u_int Flushes;
+ u_int Sum_bucket_len;
+ u_int Sum2_bucket_len;
+ u_int Max_bucket_len;
+ u_int Num_zero_len;
+ u_int Search_len;
};
-#define CODA_NC_FIND ((u_long) 1)
-#define CODA_NC_REMOVE ((u_long) 2)
-#define CODA_NC_INIT ((u_long) 3)
-#define CODA_NC_ENTER ((u_long) 4)
-#define CODA_NC_LOOKUP ((u_long) 5)
-#define CODA_NC_ZAPPFID ((u_long) 6)
-#define CODA_NC_ZAPFID ((u_long) 7)
-#define CODA_NC_ZAPVNODE ((u_long) 8)
-#define CODA_NC_ZAPFILE ((u_long) 9)
-#define CODA_NC_PURGEUSER ((u_long) 10)
-#define CODA_NC_FLUSH ((u_long) 11)
-#define CODA_NC_PRINTCODA_NC ((u_long) 12)
-#define CODA_NC_PRINTSTATS ((u_long) 13)
-
-#endif
+#define CODA_NC_FIND ((u_long) 1)
+#define CODA_NC_REMOVE ((u_long) 2)
+#define CODA_NC_INIT ((u_long) 3)
+#define CODA_NC_ENTER ((u_long) 4)
+#define CODA_NC_LOOKUP ((u_long) 5)
+#define CODA_NC_ZAPPFID ((u_long) 6)
+#define CODA_NC_ZAPFID ((u_long) 7)
+#define CODA_NC_ZAPVNODE ((u_long) 8)
+#define CODA_NC_ZAPFILE ((u_long) 9)
+#define CODA_NC_PURGEUSER ((u_long) 10)
+#define CODA_NC_FLUSH ((u_long) 11)
+#define CODA_NC_PRINTCODA_NC ((u_long) 12)
+#define CODA_NC_PRINTSTATS ((u_long) 13)
+
+#endif /* !_CODA_NC_HEADER_ */
diff --git a/sys/fs/coda/coda_opstats.h b/sys/fs/coda/coda_opstats.h
index a8d52b3..36805e8 100644
--- a/sys/fs/coda/coda_opstats.h
+++ b/sys/fs/coda/coda_opstats.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,30 +14,34 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_opstats.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_opstats.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
+#ifndef _CODA_OPSTATS_H_
+#define _CODA_OPSTATS_H_
+
/*
- * operation stats: what the minicache can intercept that
- * *isn't* seen by venus. These stats are kept to augment
- * the stats maintained by the Volume-Session mechanism.
+ * Operation stats: what the minicache can intercept that *isn't* seen by
+ * venus. These stats are kept to augment the stats maintained by the
+ * Volume-Session mechanism.
*/
-/* vfsops:
+/*-
+ * vfsops:
* mount: not currently bounced to Venus
* umount: nope
* root: only first call, rest is cached.
@@ -45,16 +49,16 @@
* sync: none (bogus)
* vget: all
*/
+#define CODA_MOUNT_STATS 0
+#define CODA_UMOUNT_STATS 1
+#define CODA_ROOT_STATS 2
+#define CODA_STATFS_STATS 3
+#define CODA_SYNC_STATS 4
+#define CODA_VGET_STATS 5
+#define CODA_VFSOPS_SIZE 6
-#define CODA_MOUNT_STATS 0
-#define CODA_UMOUNT_STATS 1
-#define CODA_ROOT_STATS 2
-#define CODA_STATFS_STATS 3
-#define CODA_SYNC_STATS 4
-#define CODA_VGET_STATS 5
-#define CODA_VFSOPS_SIZE 6
-
-/* vnodeops:
+/*-
+ * vnodeops:
* open: all to venus
* close: all to venus
* rdrw: bogus. Maybe redirected to UFS.
@@ -80,48 +84,47 @@
* readdir: may be redirected to UFS
* may cause an "internal" open/close
*/
-
-#define CODA_OPEN_STATS 0
-#define CODA_CLOSE_STATS 1
-#define CODA_RDWR_STATS 2
-#define CODA_IOCTL_STATS 3
-#define CODA_SELECT_STATS 4
-#define CODA_GETATTR_STATS 5
-#define CODA_SETATTR_STATS 6
-#define CODA_ACCESS_STATS 7
-#define CODA_READLINK_STATS 8
-#define CODA_FSYNC_STATS 9
-#define CODA_INACTIVE_STATS 10
-#define CODA_LOOKUP_STATS 11
-#define CODA_CREATE_STATS 12
-#define CODA_REMOVE_STATS 13
-#define CODA_LINK_STATS 14
-#define CODA_RENAME_STATS 15
-#define CODA_MKDIR_STATS 16
-#define CODA_RMDIR_STATS 17
-#define CODA_SYMLINK_STATS 18
-#define CODA_READDIR_STATS 19
-#define CODA_VNODEOPS_SIZE 20
+#define CODA_OPEN_STATS 0
+#define CODA_CLOSE_STATS 1
+#define CODA_RDWR_STATS 2
+#define CODA_IOCTL_STATS 3
+#define CODA_SELECT_STATS 4
+#define CODA_GETATTR_STATS 5
+#define CODA_SETATTR_STATS 6
+#define CODA_ACCESS_STATS 7
+#define CODA_READLINK_STATS 8
+#define CODA_FSYNC_STATS 9
+#define CODA_INACTIVE_STATS 10
+#define CODA_LOOKUP_STATS 11
+#define CODA_CREATE_STATS 12
+#define CODA_REMOVE_STATS 13
+#define CODA_LINK_STATS 14
+#define CODA_RENAME_STATS 15
+#define CODA_MKDIR_STATS 16
+#define CODA_RMDIR_STATS 17
+#define CODA_SYMLINK_STATS 18
+#define CODA_READDIR_STATS 19
+#define CODA_VNODEOPS_SIZE 20
/*
* I propose the following structres:
*/
-
struct coda_op_stats {
- int opcode; /* vfs opcode */
- long entries; /* number of times call attempted */
- long sat_intrn; /* number of times call satisfied by cache */
- long unsat_intrn; /* number of times call failed in cache, but
- was not bounced to venus proper. */
- long gen_intrn; /* number of times call generated internally */
- /* (do we need that?) */
+ int opcode; /* vfs opcode */
+ long entries; /* number of times call attempted */
+ long sat_intrn; /* number of times call satisfied by cache */
+ long unsat_intrn; /* number of times call failed in cache, but */
+ /* was not bounced to venus proper. */
+ long gen_intrn; /* number of times call generated internally */
+ /* (do we need that?) */
};
/*
- * With each call to the minicache, we'll bump the counters whenver
- * a call is satisfied internally (through the cache or through a
- * redirect), and whenever an operation is caused internally.
- * Then, we can add the total operations caught by the minicache
- * to the world-wide totals, and leave a caveat for the specific
- * graphs later.
+ * With each call to the minicache, we'll bump the counters whenver a call is
+ * satisfied internally (through the cache or through a redirect), and
+ * whenever an operation is caused internally. Then, we can add the total
+ * operations caught by the minicache to the world-wide totals, and leave a
+ * caveat for the specific graphs later.
*/
+
+#endif /* !_CODA_OPSTATS_H_ */
diff --git a/sys/fs/coda/coda_pioctl.h b/sys/fs/coda/coda_pioctl.h
index ea61b64..3c9d0c6 100644
--- a/sys/fs/coda/coda_pioctl.h
+++ b/sys/fs/coda/coda_pioctl.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,21 +14,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_pioctl.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_pioctl.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
+ *
*/
/*-
@@ -42,29 +42,28 @@
/*
* ITC Remote filesystem - vice ioctl interface module
- */
-
-/*
- * TODO: Find /usr/local/include/viceioctl.h.
+ *
+ * TODO: Find /usr/local/include/viceioctl.h.
*/
#ifndef _SYS_PIOCTL_H_
-#define _SYS_PIOCTL_H_
+#define _SYS_PIOCTL_H_
-/* The 2K limits above are a consequence of the size of the kernel buffer
- used to buffer requests from the user to venus--2*MAXPATHLEN.
- The buffer pointers may be null, or the counts may be 0 if there
- are no input or output parameters
+/*
+ * The 2K limits above are a consequence of the size of the kernel buffer
+ * used to buffer requests from the user to venus--2*MAXPATHLEN. The buffer
+ * pointers may be null, or the counts may be 0 if there are no input or
+ * output parameters.
*/
+#define _VICEIOCTL(id) ((unsigned int )_IOW('V', id, struct ViceIoctl))
-#define _VICEIOCTL(id) ((unsigned int ) _IOW('V', id, struct ViceIoctl))
-
-/* Use this macro to define up to 256 vice ioctl's. These ioctl's
- all potentially have in/out parameters--this depends upon the
- values in the ViceIoctl structure. This structure is itself passed
- into the kernel by the normal ioctl parameter passing mechanism.
+/*
+ * Use this macro to define up to 256 vice ioctl's. These ioctl's all
+ * potentially have in/out parameters--this depends upon the values in the
+ * ViceIoctl structure. This structure is itself passed into the kernel by
+ * the normal ioctl parameter passing mechanism.
*/
+#define _VALIDVICEIOCTL(com) (com >= _VICEIOCTL(0) && \
+ com <= _VICEIOCTL(255))
-#define _VALIDVICEIOCTL(com) (com >= _VICEIOCTL(0) && com <= _VICEIOCTL(255))
-
-#endif
+#endif /* !_SYS_PIOCTL_H_ */
diff --git a/sys/fs/coda/coda_psdev.c b/sys/fs/coda/coda_psdev.c
index 3b474cf..0cf856a 100644
--- a/sys/fs/coda/coda_psdev.c
+++ b/sys/fs/coda/coda_psdev.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,18 +13,18 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
/*-
@@ -39,14 +39,16 @@
* University. Contributers include David Steere, James Kistler, and
* M. Satyanarayanan. */
-/*
- * These routines define the psuedo device for communication between
- * Coda's Venus and Minicache in Mach 2.6. They used to be in cfs_subr.c,
- * but I moved them to make it easier to port the Minicache without
- * porting coda. -- DCS 10/12/94
+/*
+ * These routines define the psuedo device for communication between Coda's
+ * Venus and Minicache in Mach 2.6. They used to be in cfs_subr.c, but I
+ * moved them to make it easier to port the Minicache without porting coda.
+ * -- DCS 10/12/94
*/
-/* These routines are the device entry points for Venus. */
+/*
+ * These routines are the device entry points for Venus.
+ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
@@ -71,489 +73,496 @@ __FBSDID("$FreeBSD$");
#include <fs/coda/coda_io.h>
#include <fs/coda/coda_psdev.h>
-#define CTL_C
+/*
+ * Variables to determine how Coda sleeps and whether or not it is
+ * interruptible when it does sleep waiting for Venus.
+ */
+#define CTL_C
#ifdef CTL_C
#include <sys/signalvar.h>
#endif
int coda_psdev_print_entry = 0;
-static
-int outstanding_upcalls = 0;
+static int outstanding_upcalls = 0;
int coda_call_sleep = PZERO - 1;
-#ifdef CTL_C
+#ifdef CTL_C
int coda_pcatch = PCATCH;
#else
#endif
-#define ENTRY if(coda_psdev_print_entry) myprintf(("Entered %s\n",__func__))
+#define ENTRY do { \
+ if (coda_psdev_print_entry) \
+ myprintf(("Entered %s\n", __func__)); \
+} while (0)
struct vmsg {
- struct queue vm_chain;
- caddr_t vm_data;
- u_short vm_flags;
- u_short vm_inSize; /* Size is at most 5000 bytes */
- u_short vm_outSize;
- u_short vm_opcode; /* copied from data to save ptr lookup */
- int vm_unique;
- caddr_t vm_sleep; /* Not used by Mach. */
+ struct queue vm_chain;
+ caddr_t vm_data;
+ u_short vm_flags;
+ u_short vm_inSize; /* Size is at most 5000 bytes */
+ u_short vm_outSize;
+ u_short vm_opcode; /* Copied from data to save ptr deref */
+ int vm_unique;
+ caddr_t vm_sleep; /* Not used by Mach. */
};
-#define VM_READ 1
-#define VM_WRITE 2
-#define VM_INTR 4 /* Unused. */
+#define VM_READ 1
+#define VM_WRITE 2
+#define VM_INTR 4 /* Unused. */
-int
-vc_open(dev, flag, mode, td)
- struct cdev *dev;
- int flag;
- int mode;
- struct thread *td;
+int
+vc_open(struct cdev *dev, int flag, int mode, struct thread *td)
{
- struct vcomm *vcp;
- struct coda_mntinfo *mnt;
-
- ENTRY;
-
- if (!coda_nc_initialized)
- coda_nc_init();
-
- mnt = dev2coda_mntinfo(dev);
- KASSERT(mnt, ("Coda: tried to open uninitialized cfs device"));
-
- vcp = &mnt->mi_vcomm;
- if (VC_OPEN(vcp))
- return(EBUSY);
-
- bzero(&(vcp->vc_selproc), sizeof (struct selinfo));
- INIT_QUEUE(vcp->vc_requests);
- INIT_QUEUE(vcp->vc_replys);
- MARK_VC_OPEN(vcp);
-
- mnt->mi_vfsp = NULL;
- mnt->mi_rootvp = NULL;
-
- return(0);
+ struct vcomm *vcp;
+ struct coda_mntinfo *mnt;
+
+ ENTRY;
+ if (!coda_nc_initialized)
+ coda_nc_init();
+ mnt = dev2coda_mntinfo(dev);
+ KASSERT(mnt, ("Coda: tried to open uninitialized cfs device"));
+ vcp = &mnt->mi_vcomm;
+ if (VC_OPEN(vcp))
+ return (EBUSY);
+ bzero(&(vcp->vc_selproc), sizeof (struct selinfo));
+ INIT_QUEUE(vcp->vc_requests);
+ INIT_QUEUE(vcp->vc_replys);
+ MARK_VC_OPEN(vcp);
+ mnt->mi_vfsp = NULL;
+ mnt->mi_rootvp = NULL;
+ return (0);
}
-int
-vc_close (dev, flag, mode, td)
- struct cdev *dev;
- int flag;
- int mode;
- struct thread *td;
+int
+vc_close(struct cdev *dev, int flag, int mode, struct thread *td)
{
- register struct vcomm *vcp;
- register struct vmsg *vmp, *nvmp = NULL;
- struct coda_mntinfo *mi;
- int err;
-
- ENTRY;
-
- mi = dev2coda_mntinfo(dev);
- KASSERT(mi, ("Coda: closing unknown cfs device"));
-
- vcp = &mi->mi_vcomm;
- KASSERT(VC_OPEN(vcp), ("Coda: closing unopened cfs device"));
-
- /* prevent future operations on this vfs from succeeding by auto-
- * unmounting any vfs mounted via this device. This frees user or
- * sysadm from having to remember where all mount points are located.
- * Put this before WAKEUPs to avoid queuing new messages between
- * the WAKEUP and the unmount (which can happen if we're unlucky)
- */
- if (!mi->mi_rootvp) {
- /* just a simple open/close w no mount */
- MARK_VC_CLOSED(vcp);
- return 0;
- }
-
- /* Let unmount know this is for real */
- VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING;
- coda_unmounting(mi->mi_vfsp);
-
- outstanding_upcalls = 0;
- /* Wakeup clients so they can return. */
- for (vmp = (struct vmsg *)GETNEXT(vcp->vc_requests);
- !EOQ(vmp, vcp->vc_requests);
- vmp = nvmp)
- {
- nvmp = (struct vmsg *)GETNEXT(vmp->vm_chain);
- /* Free signal request messages and don't wakeup cause
- no one is waiting. */
- if (vmp->vm_opcode == CODA_SIGNAL) {
- CODA_FREE((caddr_t)vmp->vm_data, (u_int)VC_IN_NO_DATA);
- CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg));
- continue;
+ struct vcomm *vcp;
+ struct vmsg *vmp, *nvmp = NULL;
+ struct coda_mntinfo *mi;
+ int err;
+
+ ENTRY;
+ mi = dev2coda_mntinfo(dev);
+ KASSERT(mi, ("Coda: closing unknown cfs device"));
+ vcp = &mi->mi_vcomm;
+ KASSERT(VC_OPEN(vcp), ("Coda: closing unopened cfs device"));
+
+ /*
+ * Prevent future operations on this vfs from succeeding by
+ * auto-unmounting any vfs mounted via this device. This frees user
+ * or sysadm from having to remember where all mount points are
+ * located. Put this before WAKEUPs to avoid queuing new messages
+ * between the WAKEUP and the unmount (which can happen if we're
+ * unlucky).
+ */
+ if (mi->mi_rootvp == NULL) {
+ /*
+ * Just a simple open/close with no mount.
+ */
+ MARK_VC_CLOSED(vcp);
+ return (0);
}
- outstanding_upcalls++;
- wakeup(&vmp->vm_sleep);
- }
-
- for (vmp = (struct vmsg *)GETNEXT(vcp->vc_replys);
- !EOQ(vmp, vcp->vc_replys);
- vmp = (struct vmsg *)GETNEXT(vmp->vm_chain))
- {
- outstanding_upcalls++;
- wakeup(&vmp->vm_sleep);
- }
- MARK_VC_CLOSED(vcp);
+ /*
+ * Let unmount know this is for real.
+ */
+ VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING;
+ coda_unmounting(mi->mi_vfsp);
- if (outstanding_upcalls) {
-#ifdef CODA_VERBOSE
- printf("presleep: outstanding_upcalls = %d\n", outstanding_upcalls);
- (void) tsleep(&outstanding_upcalls, coda_call_sleep, "coda_umount", 0);
- printf("postsleep: outstanding_upcalls = %d\n", outstanding_upcalls);
-#else
- (void) tsleep(&outstanding_upcalls, coda_call_sleep, "coda_umount", 0);
+ /*
+ * Wakeup clients so they can return.
+ */
+ outstanding_upcalls = 0;
+ for (vmp = (struct vmsg *)GETNEXT(vcp->vc_requests);
+ !EOQ(vmp, vcp->vc_requests); vmp = nvmp) {
+ nvmp = (struct vmsg *)GETNEXT(vmp->vm_chain);
+ /*
+ * Free signal request messages and don't wakeup cause no one
+ * is waiting.
+ */
+ if (vmp->vm_opcode == CODA_SIGNAL) {
+ CODA_FREE((caddr_t)vmp->vm_data,
+ (u_int)VC_IN_NO_DATA);
+ CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg));
+ continue;
+ }
+ outstanding_upcalls++;
+ wakeup(&vmp->vm_sleep);
+ }
+ for (vmp = (struct vmsg *)GETNEXT(vcp->vc_replys);
+ !EOQ(vmp, vcp->vc_replys);
+ vmp = (struct vmsg *)GETNEXT(vmp->vm_chain)) {
+ outstanding_upcalls++;
+ wakeup(&vmp->vm_sleep);
+ }
+ MARK_VC_CLOSED(vcp);
+ if (outstanding_upcalls) {
+#ifdef CODA_VERBOSE
+ printf("presleep: outstanding_upcalls = %d\n",
+ outstanding_upcalls);
#endif
- }
-
- err = dounmount(mi->mi_vfsp, flag, td);
- if (err)
- myprintf(("Error %d unmounting vfs in vcclose(%s)\n",
- err, devtoname(dev)));
- return 0;
+ (void) tsleep(&outstanding_upcalls, coda_call_sleep,
+ "coda_umount", 0);
+#ifdef CODA_VERBOSE
+ printf("postsleep: outstanding_upcalls = %d\n",
+ outstanding_upcalls);
+#endif
+ }
+ err = dounmount(mi->mi_vfsp, flag, td);
+ if (err)
+ myprintf(("Error %d unmounting vfs in vcclose(%s)\n", err,
+ devtoname(dev)));
+ return (0);
}
-int
-vc_read(dev, uiop, flag)
- struct cdev *dev;
- struct uio *uiop;
- int flag;
+int
+vc_read(struct cdev *dev, struct uio *uiop, int flag)
{
- register struct vcomm * vcp;
- register struct vmsg *vmp;
- int error = 0;
-
- ENTRY;
-
- vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
- /* Get message at head of request queue. */
- if (EMPTY(vcp->vc_requests))
- return(0); /* Nothing to read */
-
- vmp = (struct vmsg *)GETNEXT(vcp->vc_requests);
-
- /* Move the input args into userspace */
- uiop->uio_rw = UIO_READ;
- error = uiomove(vmp->vm_data, vmp->vm_inSize, uiop);
- if (error) {
- myprintf(("vcread: error (%d) on uiomove\n", error));
- error = EINVAL;
- }
-
-#ifdef OLD_DIAGNOSTIC
- if (vmp->vm_chain.forw == 0 || vmp->vm_chain.back == 0)
- panic("vc_read: bad chain");
+ struct vcomm *vcp;
+ struct vmsg *vmp;
+ int error = 0;
+
+ ENTRY;
+ vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
+
+ /*
+ * Get message at head of request queue.
+ */
+ if (EMPTY(vcp->vc_requests))
+ return (0); /* Nothing to read */
+ vmp = (struct vmsg *)GETNEXT(vcp->vc_requests);
+
+ /*
+ * Move the input args into userspace.
+ */
+ uiop->uio_rw = UIO_READ;
+ error = uiomove(vmp->vm_data, vmp->vm_inSize, uiop);
+ if (error) {
+ myprintf(("vcread: error (%d) on uiomove\n", error));
+ error = EINVAL;
+ }
+#ifdef OLD_DIAGNOSTIC
+ if (vmp->vm_chain.forw == 0 || vmp->vm_chain.back == 0)
+ panic("vc_read: bad chain");
#endif
+ REMQUE(vmp->vm_chain);
- REMQUE(vmp->vm_chain);
-
- /* If request was a signal, free up the message and don't
- enqueue it in the reply queue. */
- if (vmp->vm_opcode == CODA_SIGNAL) {
- if (codadebug)
- myprintf(("vcread: signal msg (%d, %d)\n",
- vmp->vm_opcode, vmp->vm_unique));
- CODA_FREE((caddr_t)vmp->vm_data, (u_int)VC_IN_NO_DATA);
- CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg));
- return(error);
- }
-
- vmp->vm_flags |= VM_READ;
- INSQUE(vmp->vm_chain, vcp->vc_replys);
-
- return(error);
+ /*
+ * If request was a signal, free up the message and don't enqueue it
+ * in the reply queue.
+ */
+ if (vmp->vm_opcode == CODA_SIGNAL) {
+ if (codadebug)
+ myprintf(("vcread: signal msg (%d, %d)\n",
+ vmp->vm_opcode, vmp->vm_unique));
+ CODA_FREE((caddr_t)vmp->vm_data, (u_int)VC_IN_NO_DATA);
+ CODA_FREE((caddr_t)vmp, (u_int)sizeof(struct vmsg));
+ return (error);
+ }
+ vmp->vm_flags |= VM_READ;
+ INSQUE(vmp->vm_chain, vcp->vc_replys);
+ return (error);
}
int
-vc_write(dev, uiop, flag)
- struct cdev *dev;
- struct uio *uiop;
- int flag;
+vc_write(struct cdev *dev, struct uio *uiop, int flag)
{
- register struct vcomm * vcp;
- register struct vmsg *vmp;
- struct coda_out_hdr *out;
- u_long seq;
- u_long opcode;
- int buf[2];
- int error = 0;
-
- ENTRY;
-
- vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
-
- /* Peek at the opcode, unique without transfering the data. */
- uiop->uio_rw = UIO_WRITE;
- error = uiomove((caddr_t)buf, sizeof(int) * 2, uiop);
- if (error) {
- myprintf(("vcwrite: error (%d) on uiomove\n", error));
- return(EINVAL);
- }
-
- opcode = buf[0];
- seq = buf[1];
-
- if (codadebug)
- myprintf(("vcwrite got a call for %ld.%ld\n", opcode, seq));
-
- if (DOWNCALL(opcode)) {
- union outputArgs pbuf;
-
- /* get the rest of the data. */
+ struct vcomm *vcp;
+ struct vmsg *vmp;
+ struct coda_out_hdr *out;
+ u_long seq;
+ u_long opcode;
+ int buf[2];
+ int error = 0;
+
+ ENTRY;
+ vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
+
+ /*
+ * Peek at the opcode, unique without transfering the data.
+ */
uiop->uio_rw = UIO_WRITE;
- error = uiomove((caddr_t)&pbuf.coda_purgeuser.oh.result, sizeof(pbuf) - (sizeof(int)*2), uiop);
+ error = uiomove((caddr_t)buf, sizeof(int) * 2, uiop);
if (error) {
- myprintf(("vcwrite: error (%d) on uiomove (Op %ld seq %ld)\n",
- error, opcode, seq));
- return(EINVAL);
- }
-
- return handleDownCall(opcode, &pbuf);
- }
-
- /* Look for the message on the (waiting for) reply queue. */
- for (vmp = (struct vmsg *)GETNEXT(vcp->vc_replys);
- !EOQ(vmp, vcp->vc_replys);
- vmp = (struct vmsg *)GETNEXT(vmp->vm_chain))
- {
- if (vmp->vm_unique == seq) break;
- }
-
- if (EOQ(vmp, vcp->vc_replys)) {
+ myprintf(("vcwrite: error (%d) on uiomove\n", error));
+ return (EINVAL);
+ }
+ opcode = buf[0];
+ seq = buf[1];
if (codadebug)
- myprintf(("vcwrite: msg (%ld, %ld) not found\n", opcode, seq));
-
- return(ESRCH);
+ myprintf(("vcwrite got a call for %ld.%ld\n", opcode, seq));
+ if (DOWNCALL(opcode)) {
+ union outputArgs pbuf;
+
+ /*
+ * Get the rest of the data.
+ */
+ uiop->uio_rw = UIO_WRITE;
+ error = uiomove((caddr_t)&pbuf.coda_purgeuser.oh.result,
+ sizeof(pbuf) - (sizeof(int)*2), uiop);
+ if (error) {
+ myprintf(("vcwrite: error (%d) on uiomove (Op %ld "
+ "seq %ld)\n", error, opcode, seq));
+ return (EINVAL);
+ }
+ return (handleDownCall(opcode, &pbuf));
}
-
- /* Remove the message from the reply queue */
- REMQUE(vmp->vm_chain);
-
- /* move data into response buffer. */
- out = (struct coda_out_hdr *)vmp->vm_data;
- /* Don't need to copy opcode and uniquifier. */
-
- /* get the rest of the data. */
- if (vmp->vm_outSize < uiop->uio_resid) {
- myprintf(("vcwrite: more data than asked for (%d < %d)\n",
- vmp->vm_outSize, uiop->uio_resid));
- wakeup(&vmp->vm_sleep); /* Notify caller of the error. */
- return(EINVAL);
- }
-
- buf[0] = uiop->uio_resid; /* Save this value. */
- uiop->uio_rw = UIO_WRITE;
- error = uiomove((caddr_t) &out->result, vmp->vm_outSize - (sizeof(int) * 2), uiop);
- if (error) {
- myprintf(("vcwrite: error (%d) on uiomove (op %ld seq %ld)\n",
- error, opcode, seq));
- return(EINVAL);
- }
-
- /* I don't think these are used, but just in case. */
- /* XXX - aren't these two already correct? -bnoble */
- out->opcode = opcode;
- out->unique = seq;
- vmp->vm_outSize = buf[0]; /* Amount of data transferred? */
- vmp->vm_flags |= VM_WRITE;
-
- error = 0;
- if (opcode == CODA_OPEN_BY_FD) {
- struct coda_open_by_fd_out *tmp = (struct coda_open_by_fd_out *)out;
- struct file *fp;
- struct vnode *vp = NULL;
-
- if (tmp->oh.result == 0) {
- error = getvnode(uiop->uio_td->td_proc->p_fd, tmp->fd, &fp);
- if (!error) {
- mtx_lock(&Giant);
- vp = fp->f_vnode;
- VREF(vp);
- fdrop(fp, uiop->uio_td);
- mtx_unlock(&Giant);
- }
+
+ /*
+ * Look for the message on the (waiting for) reply queue.
+ */
+ for (vmp = (struct vmsg *)GETNEXT(vcp->vc_replys);
+ !EOQ(vmp, vcp->vc_replys);
+ vmp = (struct vmsg *)GETNEXT(vmp->vm_chain)) {
+ if (vmp->vm_unique == seq)
+ break;
+ }
+ if (EOQ(vmp, vcp->vc_replys)) {
+ if (codadebug)
+ myprintf(("vcwrite: msg (%ld, %ld) not found\n",
+ opcode, seq));
+ return (ESRCH);
+ }
+
+ /*
+ * Remove the message from the reply queue.
+ */
+ REMQUE(vmp->vm_chain);
+
+ /*
+ * Move data into response buffer.
+ */
+ out = (struct coda_out_hdr *)vmp->vm_data;
+
+ /*
+ * Don't need to copy opcode and uniquifier.
+ *
+ * Get the rest of the data.
+ */
+ if (vmp->vm_outSize < uiop->uio_resid) {
+ myprintf(("vcwrite: more data than asked for (%d < %d)\n",
+ vmp->vm_outSize, uiop->uio_resid));
+
+ /*
+ * Notify caller of the error.
+ */
+ wakeup(&vmp->vm_sleep);
+ return (EINVAL);
+ }
+
+ /*
+ * Save the value.
+ */
+ buf[0] = uiop->uio_resid;
+ uiop->uio_rw = UIO_WRITE;
+ error = uiomove((caddr_t) &out->result, vmp->vm_outSize -
+ (sizeof(int) * 2), uiop);
+ if (error) {
+ myprintf(("vcwrite: error (%d) on uiomove (op %ld seq %ld)\n",
+ error, opcode, seq));
+ return (EINVAL);
}
- tmp->vp = vp;
- }
- wakeup(&vmp->vm_sleep);
-
- return(error);
+ /*
+ * I don't think these are used, but just in case.
+ *
+ * XXX - aren't these two already correct? -bnoble
+ */
+ out->opcode = opcode;
+ out->unique = seq;
+ vmp->vm_outSize = buf[0]; /* Amount of data transferred? */
+ vmp->vm_flags |= VM_WRITE;
+ error = 0;
+ if (opcode == CODA_OPEN_BY_FD) {
+ struct coda_open_by_fd_out *tmp =
+ (struct coda_open_by_fd_out *)out;
+ struct file *fp;
+ struct vnode *vp = NULL;
+
+ if (tmp->oh.result == 0) {
+ error = getvnode(uiop->uio_td->td_proc->p_fd,
+ tmp->fd, &fp);
+ if (!error) {
+ /*
+ * XXX: Since the whole driver runs with
+ * Giant, don't actually need to acquire it
+ * explicitly here yet.
+ */
+ mtx_lock(&Giant);
+ vp = fp->f_vnode;
+ VREF(vp);
+ fdrop(fp, uiop->uio_td);
+ mtx_unlock(&Giant);
+ }
+ }
+ tmp->vp = vp;
+ }
+ wakeup(&vmp->vm_sleep);
+ return (error);
}
int
-vc_ioctl(dev, cmd, addr, flag, td)
- struct cdev *dev;
- u_long cmd;
- caddr_t addr;
- int flag;
- struct thread *td;
+vc_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
+ struct thread *t)
{
- ENTRY;
-
- switch(cmd) {
- case CODARESIZE: {
- struct coda_resize *data = (struct coda_resize *)addr;
- return(coda_nc_resize(data->hashsize, data->heapsize, IS_DOWNCALL));
- break;
- }
- case CODASTATS:
- if (coda_nc_use) {
- coda_nc_gather_stats();
- return(0);
- } else {
- return(ENODEV);
- }
- break;
- case CODAPRINT:
- if (coda_nc_use) {
- print_coda_nc();
- return(0);
- } else {
- return(ENODEV);
+
+ ENTRY;
+ switch(cmd) {
+ case CODARESIZE: {
+ struct coda_resize *data = (struct coda_resize *)addr;
+
+ return (coda_nc_resize(data->hashsize, data->heapsize,
+ IS_DOWNCALL));
}
- break;
- case CIOC_KERNEL_VERSION:
- switch (*(u_int *)addr) {
- case 0:
- *(u_int *)addr = coda_kernel_version;
- return 0;
- break;
- case 1:
- case 2:
- if (coda_kernel_version != *(u_int *)addr)
- return ENOENT;
- else
- return 0;
+
+ case CODASTATS:
+ if (coda_nc_use) {
+ coda_nc_gather_stats();
+ return (0);
+ } else
+ return (ENODEV);
+
+ case CODAPRINT:
+ if (coda_nc_use) {
+ print_coda_nc();
+ return (0);
+ } else
+ return (ENODEV);
+
+ case CIOC_KERNEL_VERSION:
+ switch (*(u_int *)addr) {
+ case 0:
+ *(u_int *)addr = coda_kernel_version;
+ return (0);
+
+ case 1:
+ case 2:
+ if (coda_kernel_version != *(u_int *)addr)
+ return (ENOENT);
+ else
+ return (0);
+
+ default:
+ return (ENOENT);
+ }
+
default:
- return ENOENT;
+ return (EINVAL);
}
- break;
- default :
- return(EINVAL);
- break;
- }
}
int
-vc_poll(dev, events, td)
- struct cdev *dev;
- int events;
- struct thread *td;
+vc_poll(struct cdev *dev, int events, struct thread *td)
{
- register struct vcomm *vcp;
- int event_msk = 0;
-
- ENTRY;
-
- vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
-
- event_msk = events & (POLLIN|POLLRDNORM);
- if (!event_msk)
- return(0);
-
- if (!EMPTY(vcp->vc_requests))
- return(events & (POLLIN|POLLRDNORM));
-
- selrecord(td, &(vcp->vc_selproc));
-
- return(0);
+ struct vcomm *vcp;
+ int event_msk = 0;
+
+ ENTRY;
+ vcp = &dev2coda_mntinfo(dev)->mi_vcomm;
+ event_msk = events & (POLLIN|POLLRDNORM);
+ if (!event_msk)
+ return (0);
+ if (!EMPTY(vcp->vc_requests))
+ return (events & (POLLIN|POLLRDNORM));
+ selrecord(td, &(vcp->vc_selproc));
+ return (0);
}
/*
- * Statistics
+ * Statistics.
*/
struct coda_clstat coda_clstat;
-/*
- * Key question: whether to sleep interuptably or uninteruptably when
- * waiting for Venus. The former seems better (cause you can ^C a
- * job), but then GNU-EMACS completion breaks. Use tsleep with no
- * timeout, and no longjmp happens. But, when sleeping
- * "uninterruptibly", we don't get told if it returns abnormally
- * (e.g. kill -9).
+/*
+ * Key question: whether to sleep interuptably or uninteruptably when waiting
+ * for Venus. The former seems better (cause you can ^C a job), but then
+ * GNU-EMACS completion breaks. Use tsleep with no timeout, and no longjmp
+ * happens. But, when sleeping "uninterruptibly", we don't get told if it
+ * returns abnormally (e.g. kill -9).
*/
-
int
-coda_call(mntinfo, inSize, outSize, buffer)
- struct coda_mntinfo *mntinfo; int inSize; int *outSize; caddr_t buffer;
+coda_call(struct coda_mntinfo *mntinfo, int inSize, int *outSize,
+ caddr_t buffer)
{
struct vcomm *vcp;
struct vmsg *vmp;
int error;
-#ifdef CTL_C
+#ifdef CTL_C
struct thread *td = curthread;
struct proc *p = td->td_proc;
sigset_t psig_omask;
sigset_t tempset;
int i;
#endif
- if (mntinfo == NULL) {
- /* Unlikely, but could be a race condition with a dying warden */
- return ENODEV;
- }
+ /*
+ * Unlikely, but could be a race condition with a dying warden.
+ */
+ if (mntinfo == NULL)
+ return ENODEV;
vcp = &(mntinfo->mi_vcomm);
-
coda_clstat.ncalls++;
coda_clstat.reqs[((struct coda_in_hdr *)buffer)->opcode]++;
-
if (!VC_OPEN(vcp))
- return(ENODEV);
-
+ return (ENODEV);
CODA_ALLOC(vmp,struct vmsg *,sizeof(struct vmsg));
- /* Format the request message. */
+
+ /*
+ * Format the request message.
+ */
vmp->vm_data = buffer;
vmp->vm_flags = 0;
vmp->vm_inSize = inSize;
- vmp->vm_outSize
+ vmp->vm_outSize
= *outSize ? *outSize : inSize; /* |buffer| >= inSize */
vmp->vm_opcode = ((struct coda_in_hdr *)buffer)->opcode;
vmp->vm_unique = ++vcp->vc_seq;
if (codadebug)
- myprintf(("Doing a call for %d.%d\n",
- vmp->vm_opcode, vmp->vm_unique));
-
- /* Fill in the common input args. */
+ myprintf(("Doing a call for %d.%d\n", vmp->vm_opcode,
+ vmp->vm_unique));
+
+ /*
+ * Fill in the common input args.
+ */
((struct coda_in_hdr *)buffer)->unique = vmp->vm_unique;
- /* Append msg to request queue and poke Venus. */
+ /*
+ * Append msg to request queue and poke Venus.
+ */
INSQUE(vmp->vm_chain, vcp->vc_requests);
selwakeuppri(&(vcp->vc_selproc), coda_call_sleep);
- /* We can be interrupted while we wait for Venus to process
- * our request. If the interrupt occurs before Venus has read
- * the request, we dequeue and return. If it occurs after the
- * read but before the reply, we dequeue, send a signal
- * message, and return. If it occurs after the reply we ignore
- * it. In no case do we want to restart the syscall. If it
- * was interrupted by a venus shutdown (vcclose), return
- * ENODEV. */
-
- /* Ignore return, We have to check anyway */
-#ifdef CTL_C
- /* This is work in progress. Setting coda_pcatch lets tsleep reawaken
- on a ^c or ^z. The problem is that emacs sets certain interrupts
- as SA_RESTART. This means that we should exit sleep handle the
- "signal" and then go to sleep again. Mostly this is done by letting
- the syscall complete and be restarted. We are not idempotent and
- can not do this. A better solution is necessary.
+ /*
+ * We can be interrupted while we wait for Venus to process our
+ * request. If the interrupt occurs before Venus has read the
+ * request, we dequeue and return. If it occurs after the read but
+ * before the reply, we dequeue, send a signal message, and return.
+ * If it occurs after the reply we ignore it. In no case do we want
+ * to restart the syscall. If it was interrupted by a venus shutdown
+ * (vcclose), return ENODEV.
+ *
+ * Ignore return, we have to check anyway.
+ */
+#ifdef CTL_C
+ /*
+ * This is work in progress. Setting coda_pcatch lets tsleep
+ * reawaken on a ^c or ^z. The problem is that emacs sets certain
+ * interrupts as SA_RESTART. This means that we should exit sleep
+ * handle the "signal" and then go to sleep again. Mostly this is
+ * done by letting the syscall complete and be restarted. We are not
+ * idempotent and can not do this. A better solution is necessary.
*/
i = 0;
PROC_LOCK(p);
psig_omask = td->td_sigmask;
do {
error = msleep(&vmp->vm_sleep, &p->p_mtx,
- (coda_call_sleep|coda_pcatch), "coda_call",
- hz*2);
+ (coda_call_sleep|coda_pcatch), "coda_call", hz*2);
if (error == 0)
break;
else if (error == EWOULDBLOCK) {
-#ifdef CODA_VERBOSE
+#ifdef CODA_VERBOSE
printf("coda_call: tsleep TIMEOUT %d sec\n", 2+2*i);
#endif
}
@@ -562,39 +571,40 @@ coda_call(mntinfo, inSize, outSize, buffer)
SIGADDSET(tempset, SIGIO);
if (SIGSETEQ(td->td_siglist, tempset)) {
SIGADDSET(td->td_sigmask, SIGIO);
-#ifdef CODA_VERBOSE
- printf("coda_call: tsleep returns %d SIGIO, cnt %d\n",
- error, i);
+#ifdef CODA_VERBOSE
+ printf("coda_call: tsleep returns %d SIGIO, "
+ "cnt %d\n", error, i);
#endif
} else {
SIGDELSET(tempset, SIGIO);
SIGADDSET(tempset, SIGALRM);
if (SIGSETEQ(td->td_siglist, tempset)) {
SIGADDSET(td->td_sigmask, SIGALRM);
-#ifdef CODA_VERBOSE
- printf("coda_call: tsleep returns %d SIGALRM, cnt %d\n",
- error, i);
+#ifdef CODA_VERBOSE
+ printf("coda_call: tsleep returns "
+ "%d SIGALRM, cnt %d\n", error, i);
#endif
- }
- else {
-#ifdef CODA_VERBOSE
- printf("coda_call: tsleep returns %d, cnt %d\n",
- error, i);
+ } else {
+#ifdef CODA_VERBOSE
+ printf("coda_call: tsleep returns "
+ "%d, cnt %d\n", error, i);
#endif
#ifdef notyet
tempset = td->td_siglist;
SIGSETNAND(tempset, td->td_sigmask);
- printf("coda_call: siglist = %p, sigmask = %p, mask %p\n",
- td->td_siglist, td->td_sigmask,
- tempset);
+ printf("coda_call: siglist = %p, "
+ "sigmask = %p, mask %p\n",
+ td->td_siglist, td->td_sigmask,
+ tempset);
break;
SIGSETOR(td->td_sigmask, td->td_siglist);
tempset = td->td_siglist;
SIGSETNAND(tempset, td->td_sigmask);
- printf("coda_call: new mask, siglist = %p, sigmask = %p, mask %p\n",
- td->td_siglist, td->td_sigmask,
- tempset);
+ printf("coda_call: new mask, "
+ "siglist = %p, sigmask = %p, "
+ "mask %p\n", td->td_siglist,
+ td->td_sigmask, tempset);
#endif
}
}
@@ -604,81 +614,81 @@ coda_call(mntinfo, inSize, outSize, buffer)
signotify(td);
PROC_UNLOCK(p);
#else
- (void) tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0);
+ (void)tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0);
#endif
- if (VC_OPEN(vcp)) { /* Venus is still alive */
- /* Op went through, interrupt or not... */
- if (vmp->vm_flags & VM_WRITE) {
- error = 0;
- *outSize = vmp->vm_outSize;
- }
-
- else if (!(vmp->vm_flags & VM_READ)) {
- /* Interrupted before venus read it. */
-#ifdef CODA_VERBOSE
- if (1)
+ if (VC_OPEN(vcp)) {
+ /*
+ * Venus is still alive.
+ *
+ * Op went through, interrupt or not...
+ */
+ if (vmp->vm_flags & VM_WRITE) {
+ error = 0;
+ *outSize = vmp->vm_outSize;
+ } else if (!(vmp->vm_flags & VM_READ)) {
+ /* Interrupted before venus read it. */
+#ifdef CODA_VERBOSE
+ if (1)
#else
- if (codadebug)
+ if (codadebug)
#endif
- myprintf(("interrupted before read: op = %d.%d, flags = %x\n",
- vmp->vm_opcode, vmp->vm_unique, vmp->vm_flags));
- REMQUE(vmp->vm_chain);
- error = EINTR;
- }
-
- else {
- /* (!(vmp->vm_flags & VM_WRITE)) means interrupted after
- upcall started */
- /* Interrupted after start of upcall, send venus a signal */
- struct coda_in_hdr *dog;
- struct vmsg *svmp;
-
-#ifdef CODA_VERBOSE
- if (1)
+ myprintf(("interrupted before read: op = "
+ "%d.%d, flags = %x\n", vmp->vm_opcode,
+ vmp->vm_unique, vmp->vm_flags));
+ REMQUE(vmp->vm_chain);
+ error = EINTR;
+ } else {
+ /*
+ * (!(vmp->vm_flags & VM_WRITE)) means interrupted
+ * after upcall started.
+ *
+ * Interrupted after start of upcall, send venus a
+ * signal.
+ */
+ struct coda_in_hdr *dog;
+ struct vmsg *svmp;
+
+#ifdef CODA_VERBOSE
+ if (1)
#else
- if (codadebug)
+ if (codadebug)
#endif
- myprintf(("Sending Venus a signal: op = %d.%d, flags = %x\n",
- vmp->vm_opcode, vmp->vm_unique, vmp->vm_flags));
-
- REMQUE(vmp->vm_chain);
- error = EINTR;
-
- CODA_ALLOC(svmp, struct vmsg *, sizeof (struct vmsg));
-
- CODA_ALLOC((svmp->vm_data), char *, sizeof (struct coda_in_hdr));
- dog = (struct coda_in_hdr *)svmp->vm_data;
-
- svmp->vm_flags = 0;
- dog->opcode = svmp->vm_opcode = CODA_SIGNAL;
- dog->unique = svmp->vm_unique = vmp->vm_unique;
- svmp->vm_inSize = sizeof (struct coda_in_hdr);
-/*??? rvb */ svmp->vm_outSize = sizeof (struct coda_in_hdr);
-
+ myprintf(("Sending Venus a signal: op = "
+ "%d.%d, flags = %x\n", vmp->vm_opcode,
+ vmp->vm_unique, vmp->vm_flags));
+ REMQUE(vmp->vm_chain);
+ error = EINTR;
+ CODA_ALLOC(svmp, struct vmsg *, sizeof(struct vmsg));
+ CODA_ALLOC((svmp->vm_data), char *,
+ sizeof(struct coda_in_hdr));
+ dog = (struct coda_in_hdr *)svmp->vm_data;
+ svmp->vm_flags = 0;
+ dog->opcode = svmp->vm_opcode = CODA_SIGNAL;
+ dog->unique = svmp->vm_unique = vmp->vm_unique;
+ svmp->vm_inSize = sizeof (struct coda_in_hdr);
+/*??? rvb */ svmp->vm_outSize = sizeof (struct coda_in_hdr);
+ if (codadebug)
+ myprintf(("coda_call: enqueing signal msg "
+ "(%d, %d)\n", svmp->vm_opcode,
+ svmp->vm_unique));
+
+ /*
+ * Insert at head of queue!
+ */
+ INSQUE(svmp->vm_chain, vcp->vc_requests);
+ selwakeuppri(&(vcp->vc_selproc), coda_call_sleep);
+ }
+ } else {
+ /* If venus died (!VC_OPEN(vcp)) */
if (codadebug)
- myprintf(("coda_call: enqueing signal msg (%d, %d)\n",
- svmp->vm_opcode, svmp->vm_unique));
-
- /* insert at head of queue! */
- INSQUE(svmp->vm_chain, vcp->vc_requests);
- selwakeuppri(&(vcp->vc_selproc), coda_call_sleep);
- }
- }
-
- else { /* If venus died (!VC_OPEN(vcp)) */
- if (codadebug)
- myprintf(("vcclose woke op %d.%d flags %d\n",
- vmp->vm_opcode, vmp->vm_unique, vmp->vm_flags));
-
+ myprintf(("vcclose woke op %d.%d flags %d\n",
+ vmp->vm_opcode, vmp->vm_unique, vmp->vm_flags));
error = ENODEV;
}
-
CODA_FREE(vmp, sizeof(struct vmsg));
-
if (outstanding_upcalls > 0 && (--outstanding_upcalls == 0))
wakeup(&outstanding_upcalls);
-
if (!error)
error = ((struct coda_out_hdr *)buffer)->result;
- return(error);
+ return (error);
}
diff --git a/sys/fs/coda/coda_psdev.h b/sys/fs/coda/coda_psdev.h
index a446e3d..021456b 100644
--- a/sys/fs/coda/coda_psdev.h
+++ b/sys/fs/coda/coda_psdev.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,26 +14,33 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
*/
+#ifndef _CODA_PSDEV_H_
+#define _CODA_PSDEV_H_
+
+/*
+ * Prototypes for cfs device operations.
+ */
d_open_t vc_open;
d_close_t vc_close;
d_read_t vc_read;
d_write_t vc_write;
d_ioctl_t vc_ioctl;
d_poll_t vc_poll;
+
+#endif /* !_CODA_PSDEV_H_ */
diff --git a/sys/fs/coda/coda_subr.c b/sys/fs/coda/coda_subr.c
index c49309a..9183bf0a 100644
--- a/sys/fs/coda/coda_subr.c
+++ b/sys/fs/coda/coda_subr.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,20 +13,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_subr.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
+
/*-
* Mach Operating System
* Copyright (c) 1989 Carnegie-Mellon University
@@ -40,15 +41,16 @@
* M. Satyanarayanan.
*/
-/* NOTES: rvb
- * 1. Added coda_unmounting to mark all cnodes as being UNMOUNTING. This has to
- * be done before dounmount is called. Because some of the routines that
- * dounmount calls before coda_unmounted might try to force flushes to venus.
- * The vnode pager does this.
+/*-
+ * NOTES: rvb
+ * 1. Added coda_unmounting to mark all cnodes as being UNMOUNTING. This
+ * has to be done before dounmount is called. Because some of the
+ * routines that dounmount calls before coda_unmounted might try to
+ * force flushes to venus. The vnode pager does this.
* 2. coda_unmounting marks all cnodes scanning coda_cache.
- * 3. cfs_checkunmounting (under DEBUG) checks all cnodes by chasing the vnodes
- * under the /coda mount point.
- * 4. coda_cacheprint (under DEBUG) prints names with vnode/cnode address
+ * 3. cfs_checkunmounting (under DEBUG) checks all cnodes by chasing the
+ * vnodes under the /coda mount point.
+ * 4. coda_cacheprint (under DEBUG) prints names with vnode/cnode address.
*/
#include <sys/cdefs.h>
@@ -66,22 +68,21 @@ __FBSDID("$FreeBSD$");
#include <fs/coda/coda_subr.h>
#include <fs/coda/coda_namecache.h>
-int coda_active = 0;
-int coda_reuse = 0;
-int coda_new = 0;
+static int coda_active = 0;
+static int coda_reuse = 0;
+static int coda_new = 0;
-struct cnode *coda_freelist = NULL;
-struct cnode *coda_cache[CODA_CACHESIZE];
+static struct cnode *coda_freelist = NULL;
+static struct cnode *coda_cache[CODA_CACHESIZE];
#define CNODE_NEXT(cp) ((cp)->c_next)
#ifdef CODA_COMPAT_5
-#define coda_hash(fid) \
- (((fid)->Volume + (fid)->Vnode) & (CODA_CACHESIZE-1))
-#define IS_DIR(cnode) (cnode.Vnode & 0x1)
+#define coda_hash(fid) (((fid)->Volume + (fid)->Vnode) & (CODA_CACHESIZE-1))
+#define IS_DIR(cnode) (cnode.Vnode & 0x1)
#else
-#define coda_hash(fid) (coda_f2i(fid) & (CODA_CACHESIZE-1))
-#define IS_DIR(cnode) (cnode.opaque[2] & 0x1)
+#define coda_hash(fid) (coda_f2i(fid) & (CODA_CACHESIZE-1))
+#define IS_DIR(cnode) (cnode.opaque[2] & 0x1)
#endif
/*
@@ -90,210 +91,208 @@ struct cnode *coda_cache[CODA_CACHESIZE];
struct cnode *
coda_alloc(void)
{
- struct cnode *cp;
-
- if (coda_freelist) {
- cp = coda_freelist;
- coda_freelist = CNODE_NEXT(cp);
- coda_reuse++;
- }
- else {
- CODA_ALLOC(cp, struct cnode *, sizeof(struct cnode));
- /* FreeBSD vnodes don't have any Pager info in them ('cause there are
- no external pagers, duh!) */
-#define VNODE_VM_INFO_INIT(vp) /* MT */
- VNODE_VM_INFO_INIT(CTOV(cp));
- coda_new++;
- }
- bzero(cp, sizeof (struct cnode));
-
- return(cp);
+ struct cnode *cp;
+
+ if (coda_freelist != NULL) {
+ cp = coda_freelist;
+ coda_freelist = CNODE_NEXT(cp);
+ coda_reuse++;
+ } else {
+ CODA_ALLOC(cp, struct cnode *, sizeof(struct cnode));
+
+ /*
+ * FreeBSD vnodes don't have any Pager info in them ('cause
+ * there are no external pagers, duh!).
+ */
+#define VNODE_VM_INFO_INIT(vp) /* MT */
+ VNODE_VM_INFO_INIT(CTOV(cp));
+ coda_new++;
+ }
+ bzero(cp, sizeof (struct cnode));
+ return (cp);
}
/*
* Deallocate a cnode.
*/
void
-coda_free(cp)
- register struct cnode *cp;
+coda_free(struct cnode *cp)
{
- CNODE_NEXT(cp) = coda_freelist;
- coda_freelist = cp;
+ CNODE_NEXT(cp) = coda_freelist;
+ coda_freelist = cp;
}
/*
- * Put a cnode in the hash table
+ * Put a cnode in the hash table.
*/
void
-coda_save(cp)
- struct cnode *cp;
+coda_save(struct cnode *cp)
{
+
CNODE_NEXT(cp) = coda_cache[coda_hash(&cp->c_fid)];
coda_cache[coda_hash(&cp->c_fid)] = cp;
}
/*
- * Remove a cnode from the hash table
+ * Remove a cnode from the hash table.
*/
void
-coda_unsave(cp)
- struct cnode *cp;
+coda_unsave(struct cnode *cp)
{
- struct cnode *ptr;
- struct cnode *ptrprev = NULL;
-
- ptr = coda_cache[coda_hash(&cp->c_fid)];
- while (ptr != NULL) {
- if (ptr == cp) {
- if (ptrprev == NULL) {
- coda_cache[coda_hash(&cp->c_fid)]
- = CNODE_NEXT(ptr);
- } else {
- CNODE_NEXT(ptrprev) = CNODE_NEXT(ptr);
- }
- CNODE_NEXT(cp) = (struct cnode *)NULL;
-
- return;
- }
- ptrprev = ptr;
- ptr = CNODE_NEXT(ptr);
- }
+ struct cnode *ptr;
+ struct cnode *ptrprev = NULL;
+
+ ptr = coda_cache[coda_hash(&cp->c_fid)];
+ while (ptr != NULL) {
+ if (ptr == cp) {
+ if (ptrprev == NULL)
+ coda_cache[coda_hash(&cp->c_fid)] =
+ CNODE_NEXT(ptr);
+ else
+ CNODE_NEXT(ptrprev) = CNODE_NEXT(ptr);
+ CNODE_NEXT(cp) = (struct cnode *)NULL;
+ return;
+ }
+ ptrprev = ptr;
+ ptr = CNODE_NEXT(ptr);
+ }
}
/*
* Lookup a cnode by fid. If the cnode is dying, it is bogus so skip it.
+ *
* NOTE: this allows multiple cnodes with same fid -- dcs 1/25/95
*/
struct cnode *
-coda_find(fid)
- CodaFid *fid;
+coda_find(CodaFid *fid)
{
- struct cnode *cp;
-
- cp = coda_cache[coda_hash(fid)];
- while (cp) {
- if (coda_fid_eq(&(cp->c_fid), fid) &&
- (!IS_UNMOUNTING(cp)))
- {
- coda_active++;
- return(cp);
- }
- cp = CNODE_NEXT(cp);
- }
- return(NULL);
+ struct cnode *cp;
+
+ cp = coda_cache[coda_hash(fid)];
+ while (cp) {
+ if (coda_fid_eq(&(cp->c_fid), fid) && (!IS_UNMOUNTING(cp))) {
+ coda_active++;
+ return (cp);
+ }
+ cp = CNODE_NEXT(cp);
+ }
+ return (NULL);
}
/*
- * coda_kill is called as a side effect to vcopen. To prevent any
- * cnodes left around from an earlier run of a venus or warden from
- * causing problems with the new instance, mark any outstanding cnodes
- * as dying. Future operations on these cnodes should fail (excepting
- * coda_inactive of course!). Since multiple venii/wardens can be
- * running, only kill the cnodes for a particular entry in the
- * coda_mnttbl. -- DCS 12/1/94 */
-
+ * coda_kill is called as a side effect to vcopen. To prevent any cnodes
+ * left around from an earlier run of a venus or warden from causing problems
+ * with the new instance, mark any outstanding cnodes as dying. Future
+ * operations on these cnodes should fail (excepting coda_inactive of
+ * course!). Since multiple venii/wardens can be running, only kill the
+ * cnodes for a particular entry in the coda_mnttbl. -- DCS 12/1/94
+ */
int
-coda_kill(whoIam, dcstat)
- struct mount *whoIam;
- enum dc_status dcstat;
+coda_kill(struct mount *whoIam, enum dc_status dcstat)
{
int hash, count = 0;
struct cnode *cp;
-
- /*
- * Algorithm is as follows:
+
+ /*-
+ * Algorithm is as follows:
* Second, flush whatever vnodes we can from the name cache.
- *
+ *
* Finally, step through whatever is left and mark them dying.
* This prevents any operation at all.
+ *
+ * This is slightly overkill, but should work. Eventually it'd be
+ * nice to only flush those entries from the namecache that reference
+ * a vnode in this vfs.
*/
-
- /* This is slightly overkill, but should work. Eventually it'd be
- * nice to only flush those entries from the namecache that
- * reference a vnode in this vfs. */
coda_nc_flush(dcstat);
-
for (hash = 0; hash < CODA_CACHESIZE; hash++) {
- for (cp = coda_cache[hash]; cp != NULL; cp = CNODE_NEXT(cp)) {
+ for (cp = coda_cache[hash];cp != NULL;
+ cp = CNODE_NEXT(cp)) {
if (CTOV(cp)->v_mount == whoIam) {
-#ifdef DEBUG
- printf("coda_kill: vp %p, cp %p\n", CTOV(cp), cp);
+#ifdef DEBUG
+ printf("coda_kill: vp %p, cp %p\n", CTOV(cp),
+ cp);
#endif
count++;
- CODADEBUG(CODA_FLUSH,
- myprintf(("Live cnode fid %s flags %d count %d\n",
- coda_f2s(&cp->c_fid),
- cp->c_flags,
- vrefcnt(CTOV(cp)))); );
+ CODADEBUG(CODA_FLUSH, myprintf(("Live cnode "
+ "fid %s flags %d count %d\n",
+ coda_f2s(&cp->c_fid), cp->c_flags,
+ vrefcnt(CTOV(cp)))););
}
}
}
- return count;
+ return (count);
}
/*
- * There are two reasons why a cnode may be in use, it may be in the
- * name cache or it may be executing.
+ * There are two reasons why a cnode may be in use, it may be in the name
+ * cache or it may be executing.
*/
void
-coda_flush(dcstat)
- enum dc_status dcstat;
+coda_flush(enum dc_status dcstat)
{
- int hash;
- struct cnode *cp;
-
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_FLUSH]++;
-
- coda_nc_flush(dcstat); /* flush files from the name cache */
-
- for (hash = 0; hash < CODA_CACHESIZE; hash++) {
- for (cp = coda_cache[hash]; cp != NULL; cp = CNODE_NEXT(cp)) {
- if (!IS_DIR(cp->c_fid)) /* only files can be executed */
- coda_vmflush(cp);
+ int hash;
+ struct cnode *cp;
+
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_FLUSH]++;
+
+ /*
+ * Flush files from the name cache.
+ */
+ coda_nc_flush(dcstat);
+ for (hash = 0; hash < CODA_CACHESIZE; hash++) {
+ for (cp = coda_cache[hash]; cp != NULL;
+ cp = CNODE_NEXT(cp)) {
+ /*
+ * Only files that can be executed need to be flushed
+ * from the VM.
+ *
+ * NOTE: Currently this doesn't do anything, but
+ * perhaps it should?
+ */
+ if (!IS_DIR(cp->c_fid))
+ coda_vmflush(cp);
+ }
}
- }
}
/*
- * As a debugging measure, print out any cnodes that lived through a
- * name cache flush.
+ * As a debugging measure, print out any cnodes that lived through a name
+ * cache flush.
*/
void
coda_testflush(void)
{
- int hash;
- struct cnode *cp;
-
- for (hash = 0; hash < CODA_CACHESIZE; hash++) {
- for (cp = coda_cache[hash];
- cp != NULL;
- cp = CNODE_NEXT(cp)) {
- myprintf(("Live cnode fid %s count %d\n",
- coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount));
+ int hash;
+ struct cnode *cp;
+
+ for (hash = 0; hash < CODA_CACHESIZE; hash++) {
+ for (cp = coda_cache[hash]; cp != NULL;
+ cp = CNODE_NEXT(cp))
+ myprintf(("Live cnode fid %s count %d\n",
+ coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount));
}
- }
}
/*
- * First, step through all cnodes and mark them unmounting.
- * FreeBSD kernels may try to fsync them now that venus
- * is dead, which would be a bad thing.
- *
+ * First, step through all cnodes and mark them unmounting. FreeBSD kernels
+ * may try to fsync them now that venus is dead, which would be a bad thing.
*/
void
-coda_unmounting(whoIam)
- struct mount *whoIam;
-{
+coda_unmounting(struct mount *whoIam)
+{
int hash;
struct cnode *cp;
for (hash = 0; hash < CODA_CACHESIZE; hash++) {
- for (cp = coda_cache[hash]; cp != NULL; cp = CNODE_NEXT(cp)) {
+ for (cp = coda_cache[hash]; cp != NULL;
+ cp = CNODE_NEXT(cp)) {
if (CTOV(cp)->v_mount == whoIam) {
if (cp->c_flags & (C_LOCKED|C_WANTED)) {
- printf("coda_unmounting: Unlocking %p\n", cp);
+ printf("coda_unmounting: Unlocking "
+ "%p\n", cp);
cp->c_flags &= ~(C_LOCKED|C_WANTED);
wakeup((caddr_t) cp);
}
@@ -303,10 +302,9 @@ coda_unmounting(whoIam)
}
}
-#ifdef DEBUG
+#ifdef DEBUG
void
-coda_checkunmounting(mp)
- struct mount *mp;
+coda_checkunmounting(struct mount *mp)
{
struct vnode *vp, *nvp;
struct cnode *cp;
@@ -332,21 +330,22 @@ coda_checkunmounting(mp)
}
void
-coda_cacheprint(whoIam)
- struct mount *whoIam;
-{
+coda_cacheprint(struct mount *whoIam)
+{
int hash;
struct cnode *cp;
int count = 0;
- printf("coda_cacheprint: coda_ctlvp %p, cp %p", coda_ctlvp, VTOC(coda_ctlvp));
+ printf("coda_cacheprint: coda_ctlvp %p, cp %p", coda_ctlvp,
+ VTOC(coda_ctlvp));
coda_nc_name(VTOC(coda_ctlvp));
printf("\n");
-
for (hash = 0; hash < CODA_CACHESIZE; hash++) {
- for (cp = coda_cache[hash]; cp != NULL; cp = CNODE_NEXT(cp)) {
+ for (cp = coda_cache[hash]; cp != NULL;
+ cp = CNODE_NEXT(cp)) {
if (CTOV(cp)->v_mount == whoIam) {
- printf("coda_cacheprint: vp %p, cp %p", CTOV(cp), cp);
+ printf("coda_cacheprint: vp %p, cp %p",
+ CTOV(cp), cp);
coda_nc_name(cp);
printf("\n");
count++;
@@ -357,202 +356,201 @@ coda_cacheprint(whoIam)
}
#endif
-/*
- * There are 6 cases where invalidations occur. The semantics of each
- * is listed here.
+/*-
+ * There are 6 cases where invalidations occur. The semantics of each is
+ * listed here:
+ *
+ * CODA_FLUSH -- Flush all entries from the name cache and the cnode
+ * cache.
+ *
+ * CODA_PURGEUSER -- Flush all entries from the name cache for a specific
+ * user. This call is a result of token expiration.
*
- * CODA_FLUSH -- flush all entries from the name cache and the cnode cache.
- * CODA_PURGEUSER -- flush all entries from the name cache for a specific user
- * This call is a result of token expiration.
+ * The next two are the result of callbacks on a file or directory:
*
- * The next two are the result of callbacks on a file or directory.
- * CODA_ZAPDIR -- flush the attributes for the dir from its cnode.
- * Zap all children of this directory from the namecache.
- * CODA_ZAPFILE -- flush the attributes for a file.
+ * CODA_ZAPDIR -- Flush the attributes for the dir from its cnode. Zap
+ * all children of this directory from the namecache.
*
- * The fifth is a result of Venus detecting an inconsistent file.
- * CODA_PURGEFID -- flush the attribute for the file
- * If it is a dir (odd vnode), purge its
- * children from the namecache
- * remove the file from the namecache.
+ * CODA_ZAPFILE -- Flush the attributes for a file.
*
- * The sixth allows Venus to replace local fids with global ones
- * during reintegration.
+ * The fifth is a result of Venus detecting an inconsistent file:
*
- * CODA_REPLACE -- replace one CodaFid with another throughout the name cache
+ * CODA_PURGEFID -- Flush the attribute for the file; if it is a dir (odd
+ * vnode), purge its children from the namecache; remove
+ * the file from the namecache.
+ *
+ * The sixth allows Venus to replace local fids with global ones during
+ * reintegration.
+ *
+ * CODA_REPLACE -- Replace one CodaFid with another throughout the name
+ * cache.
*/
-
-int handleDownCall(opcode, out)
- int opcode; union outputArgs *out;
+int handleDownCall(int opcode, union outputArgs *out)
{
- int error;
+ int error;
+
+ /*
+ * Handle invalidate requests.
+ */
+ switch (opcode) {
+ case CODA_FLUSH: {
+ coda_flush(IS_DOWNCALL);
- /* Handle invalidate requests. */
- switch (opcode) {
- case CODA_FLUSH : {
+ /* Print any remaining cnodes. */
+ CODADEBUG(CODA_FLUSH, coda_testflush(););
+ return (0);
+ }
- coda_flush(IS_DOWNCALL);
-
- CODADEBUG(CODA_FLUSH,coda_testflush();) /* print remaining cnodes */
- return(0);
- }
-
- case CODA_PURGEUSER : {
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_PURGEUSER]++;
-
- /* XXX - need to prevent fsync's */
+ case CODA_PURGEUSER: {
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_PURGEUSER]++;
+
+ /* XXX - need to prevent fsync's. */
#ifdef CODA_COMPAT_5
- coda_nc_purge_user(out->coda_purgeuser.cred.cr_uid, IS_DOWNCALL);
+ coda_nc_purge_user(out->coda_purgeuser.cred.cr_uid,
+ IS_DOWNCALL);
#else
- coda_nc_purge_user(out->coda_purgeuser.uid, IS_DOWNCALL);
+ coda_nc_purge_user(out->coda_purgeuser.uid, IS_DOWNCALL);
#endif
- return(0);
- }
-
- case CODA_ZAPFILE : {
- struct cnode *cp;
-
- error = 0;
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_ZAPFILE]++;
-
- cp = coda_find(&out->coda_zapfile.Fid);
- if (cp != NULL) {
- vref(CTOV(cp));
-
- cp->c_flags &= ~C_VATTR;
- ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall");
- if (CTOV(cp)->v_vflag & VV_TEXT)
- error = coda_vmflush(cp);
- CODADEBUG(CODA_ZAPFILE,
- myprintf(("zapfile: fid = %s, refcnt = %d, error = %d\n",
- coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount - 1, error)););
- if (vrefcnt(CTOV(cp)) == 1) {
- cp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cp));
- }
-
- return(error);
- }
-
- case CODA_ZAPDIR : {
- struct cnode *cp;
-
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_ZAPDIR]++;
-
- cp = coda_find(&out->coda_zapdir.Fid);
- if (cp != NULL) {
- vref(CTOV(cp));
-
- cp->c_flags &= ~C_VATTR;
- coda_nc_zapParentfid(&out->coda_zapdir.Fid, IS_DOWNCALL);
-
- CODADEBUG(CODA_ZAPDIR, myprintf((
- "zapdir: fid = %s, refcnt = %d\n",
- coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount - 1)););
- if (vrefcnt(CTOV(cp)) == 1) {
- cp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cp));
- }
-
- return(0);
- }
-
- case CODA_PURGEFID : {
- struct cnode *cp;
-
- error = 0;
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_PURGEFID]++;
-
- cp = coda_find(&out->coda_purgefid.Fid);
- if (cp != NULL) {
- vref(CTOV(cp));
- if (IS_DIR(out->coda_purgefid.Fid)) { /* Vnode is a directory */
- coda_nc_zapParentfid(&out->coda_purgefid.Fid,IS_DOWNCALL);
- }
- cp->c_flags &= ~C_VATTR;
- coda_nc_zapfid(&out->coda_purgefid.Fid, IS_DOWNCALL);
- ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall");
- if (!(IS_DIR(out->coda_purgefid.Fid))
- && (CTOV(cp)->v_vflag & VV_TEXT)) {
-
- error = coda_vmflush(cp);
- }
- CODADEBUG(CODA_PURGEFID, myprintf((
- "purgefid: fid = %s, refcnt = %d, error = %d\n",
- coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount - 1, error)););
- if (vrefcnt(CTOV(cp)) == 1) {
- cp->c_flags |= C_PURGING;
- }
- vrele(CTOV(cp));
- }
- return(error);
+ return (0);
+ }
+
+ case CODA_ZAPFILE: {
+ struct cnode *cp;
+
+ error = 0;
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_ZAPFILE]++;
+ cp = coda_find(&out->coda_zapfile.Fid);
+ if (cp != NULL) {
+ vref(CTOV(cp));
+ cp->c_flags &= ~C_VATTR;
+ ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall");
+ if (CTOV(cp)->v_vflag & VV_TEXT)
+ error = coda_vmflush(cp);
+ CODADEBUG(CODA_ZAPFILE,
+ myprintf(("zapfile: fid = %s, refcnt = %d, error = "
+ "%d\n", coda_f2s(&cp->c_fid),
+ CTOV(cp)->v_usecount - 1, error)););
+ if (vrefcnt(CTOV(cp)) == 1)
+ cp->c_flags |= C_PURGING;
+ vrele(CTOV(cp));
+ }
+ return (error);
}
- case CODA_REPLACE : {
- struct cnode *cp = NULL;
-
- coda_clstat.ncalls++;
- coda_clstat.reqs[CODA_REPLACE]++;
-
- cp = coda_find(&out->coda_replace.OldFid);
- if (cp != NULL) {
- /* remove the cnode from the hash table, replace the fid, and reinsert */
- vref(CTOV(cp));
- coda_unsave(cp);
- cp->c_fid = out->coda_replace.NewFid;
- coda_save(cp);
-
- CODADEBUG(CODA_REPLACE, myprintf((
- "replace: oldfid = %s, newfid = %s, cp = %p\n",
- coda_f2s(&out->coda_replace.OldFid),
- coda_f2s(&cp->c_fid), cp));) vrele(CTOV(cp));
- }
- return (0);
+ case CODA_ZAPDIR: {
+ struct cnode *cp;
+
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_ZAPDIR]++;
+ cp = coda_find(&out->coda_zapdir.Fid);
+ if (cp != NULL) {
+ vref(CTOV(cp));
+ cp->c_flags &= ~C_VATTR;
+ coda_nc_zapParentfid(&out->coda_zapdir.Fid,
+ IS_DOWNCALL);
+ CODADEBUG(CODA_ZAPDIR, myprintf(("zapdir: fid = %s, "
+ "refcnt = %d\n", coda_f2s(&cp->c_fid),
+ CTOV(cp)->v_usecount - 1)););
+ if (vrefcnt(CTOV(cp)) == 1)
+ cp->c_flags |= C_PURGING;
+ vrele(CTOV(cp));
+ }
+ return (0);
}
- default:
- myprintf(("handleDownCall: unknown opcode %d\n", opcode));
- return (EINVAL);
- }
-}
-/* coda_grab_vnode: lives in either cfs_mach.c or cfs_nbsd.c */
+ case CODA_PURGEFID: {
+ struct cnode *cp;
+
+ error = 0;
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_PURGEFID]++;
+ cp = coda_find(&out->coda_purgefid.Fid);
+ if (cp != NULL) {
+ vref(CTOV(cp));
+ if (IS_DIR(out->coda_purgefid.Fid))
+ coda_nc_zapParentfid(&out->coda_purgefid.Fid,
+ IS_DOWNCALL);
+ cp->c_flags &= ~C_VATTR;
+ coda_nc_zapfid(&out->coda_purgefid.Fid, IS_DOWNCALL);
+ ASSERT_VOP_LOCKED(CTOV(cp), "coda HandleDownCall");
+ if (!(IS_DIR(out->coda_purgefid.Fid))
+ && (CTOV(cp)->v_vflag & VV_TEXT))
+ error = coda_vmflush(cp);
+ CODADEBUG(CODA_PURGEFID, myprintf(("purgefid: fid "
+ "= %s, refcnt = %d, error = %d\n",
+ coda_f2s(&cp->c_fid),
+ CTOV(cp)->v_usecount - 1, error)););
+ if (vrefcnt(CTOV(cp)) == 1)
+ cp->c_flags |= C_PURGING;
+ vrele(CTOV(cp));
+ }
+ return (error);
+ }
+
+ case CODA_REPLACE: {
+ struct cnode *cp = NULL;
+
+ coda_clstat.ncalls++;
+ coda_clstat.reqs[CODA_REPLACE]++;
+ cp = coda_find(&out->coda_replace.OldFid);
+ if (cp != NULL) {
+ /*
+ * Remove the cnode from the hash table, replace the
+ * fid, and reinsert.
+ */
+ vref(CTOV(cp));
+ coda_unsave(cp);
+ cp->c_fid = out->coda_replace.NewFid;
+ coda_save(cp);
+ CODADEBUG(CODA_REPLACE, myprintf(("replace: oldfid "
+ "= %s, newfid = %s, cp = %p\n",
+ coda_f2s(&out->coda_replace.OldFid),
+ coda_f2s(&cp->c_fid), cp)););
+ vrele(CTOV(cp));
+ }
+ return (0);
+ }
+ default:
+ myprintf(("handleDownCall: unknown opcode %d\n", opcode));
+ return (EINVAL);
+ }
+}
int
-coda_vmflush(cp)
- struct cnode *cp;
+coda_vmflush(struct cnode *cp)
{
- return 0;
-}
+ return (0);
+}
-/*
- * kernel-internal debugging switches
+/*
+ * Kernel-internal debugging switches.
*/
-void coda_debugon(void)
+void
+coda_debugon(void)
{
- codadebug = -1;
- coda_nc_debug = -1;
- coda_vnop_print_entry = 1;
- coda_psdev_print_entry = 1;
- coda_vfsop_print_entry = 1;
+
+ codadebug = -1;
+ coda_nc_debug = -1;
+ coda_vnop_print_entry = 1;
+ coda_psdev_print_entry = 1;
+ coda_vfsop_print_entry = 1;
}
-void coda_debugoff(void)
+void
+coda_debugoff(void)
{
- codadebug = 0;
- coda_nc_debug = 0;
- coda_vnop_print_entry = 0;
- coda_psdev_print_entry = 0;
- coda_vfsop_print_entry = 0;
+
+ codadebug = 0;
+ coda_nc_debug = 0;
+ coda_vnop_print_entry = 0;
+ coda_psdev_print_entry = 0;
+ coda_vfsop_print_entry = 0;
}
-/*
+/*-
* Utilities used by both client and server
* Standard levels:
* 0) no debugging
diff --git a/sys/fs/coda/coda_subr.h b/sys/fs/coda/coda_subr.h
index 91bf122..2b307cb 100644
--- a/sys/fs/coda/coda_subr.h
+++ b/sys/fs/coda/coda_subr.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,32 +14,36 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_subr.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_subr.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
*/
-struct cnode *coda_alloc(void);
-void coda_free(struct cnode *cp);
-struct cnode *coda_find(CodaFid *fid);
-void coda_flush(enum dc_status dcstat);
-void coda_testflush(void);
-void coda_checkunmounting(struct mount *mp);
-void coda_cacheprint(struct mount *whoIam);
-void coda_debugon(void);
-void coda_debugoff(void);
-int coda_kill(struct mount *whoIam, enum dc_status dcstat);
-void coda_save(struct cnode *cp);
-void coda_unsave(struct cnode *cp);
+#ifndef _CODA_SUBR_H_
+#define _CODA_SUBR_H_
+
+struct cnode *coda_alloc(void);
+void coda_free(struct cnode *cp);
+struct cnode *coda_find(CodaFid *fid);
+void coda_flush(enum dc_status dcstat);
+void coda_testflush(void);
+void coda_checkunmounting(struct mount *mp);
+void coda_cacheprint(struct mount *whoIam);
+void coda_debugon(void);
+void coda_debugoff(void);
+int coda_kill(struct mount *whoIam, enum dc_status dcstat);
+void coda_save(struct cnode *cp);
+void coda_unsave(struct cnode *cp);
+
+#endif /* !_CODA_SUBR_H_ */
diff --git a/sys/fs/coda/coda_venus.c b/sys/fs/coda/coda_venus.c
index 03df54e..c69741b 100644
--- a/sys/fs/coda/coda_venus.c
+++ b/sys/fs/coda/coda_venus.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,18 +13,18 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/cfs/coda_venus.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
@@ -46,198 +46,195 @@ __FBSDID("$FreeBSD$");
#include <fs/coda/coda_venus.h>
#include <fs/coda/coda_pioctl.h>
-#define DECL_NO_IN(name) \
- struct coda_in_hdr *inp; \
- struct name ## _out *outp; \
- int name ## _size = sizeof (struct coda_in_hdr); \
- int Isize = sizeof (struct coda_in_hdr); \
- int Osize = sizeof (struct name ## _out); \
- int error
-
-#define DECL(name) \
- struct name ## _in *inp; \
- struct name ## _out *outp; \
- int name ## _size = sizeof (struct name ## _in); \
- int Isize = sizeof (struct name ## _in); \
- int Osize = sizeof (struct name ## _out); \
- int error
-
-#define DECL_NO_OUT(name) \
- struct name ## _in *inp; \
- struct coda_out_hdr *outp; \
- int name ## _size = sizeof (struct name ## _in); \
- int Isize = sizeof (struct name ## _in); \
- int Osize = sizeof (struct coda_out_hdr); \
- int error
-
-#define ALLOC_NO_IN(name) \
- if (Osize > name ## _size) \
- name ## _size = Osize; \
- CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\
- outp = (struct name ## _out *) inp
-
-#define ALLOC(name) \
- if (Osize > name ## _size) \
- name ## _size = Osize; \
- CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
- outp = (struct name ## _out *) inp
-
-#define ALLOC_NO_OUT(name) \
- if (Osize > name ## _size) \
- name ## _size = Osize; \
- CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
- outp = (struct coda_out_hdr *) inp
-
-#define STRCPY(struc, name, len) \
- bcopy(name, (char *)inp + (int)inp->struc, len); \
- ((char*)inp + (int)inp->struc)[len++] = 0; \
- Isize += len
+#define DECL_NO_IN(name) \
+ struct coda_in_hdr *inp; \
+ struct name ## _out *outp; \
+ int name ## _size = sizeof (struct coda_in_hdr); \
+ int Isize = sizeof (struct coda_in_hdr); \
+ int Osize = sizeof (struct name ## _out); \
+ int error
+
+#define DECL(name) \
+ struct name ## _in *inp; \
+ struct name ## _out *outp; \
+ int name ## _size = sizeof (struct name ## _in); \
+ int Isize = sizeof (struct name ## _in); \
+ int Osize = sizeof (struct name ## _out); \
+ int error
+
+#define DECL_NO_OUT(name) \
+ struct name ## _in *inp; \
+ struct coda_out_hdr *outp; \
+ int name ## _size = sizeof (struct name ## _in); \
+ int Isize = sizeof (struct name ## _in); \
+ int Osize = sizeof (struct coda_out_hdr); \
+ int error
+
+#define ALLOC_NO_IN(name) \
+ if (Osize > name ## _size) \
+ name ## _size = Osize; \
+ CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size); \
+ outp = (struct name ## _out *) inp
+
+#define ALLOC(name) \
+ if (Osize > name ## _size) \
+ name ## _size = Osize; \
+ CODA_ALLOC(inp, struct name ## _in *, name ## _size); \
+ outp = (struct name ## _out *) inp
+
+#define ALLOC_NO_OUT(name) \
+ if (Osize > name ## _size) \
+ name ## _size = Osize; \
+ CODA_ALLOC(inp, struct name ## _in *, name ## _size); \
+ outp = (struct coda_out_hdr *) inp
+
+#define STRCPY(struc, name, len) \
+ bcopy(name, (char *)inp + (int)inp->struc, len); \
+ ((char*)inp + (int)inp->struc)[len++] = 0; \
+ Isize += len
#ifdef CODA_COMPAT_5
-#define INIT_IN(in, op, ident, p) \
- (in)->opcode = (op); \
- sx_slock(&proctree_lock); \
- (in)->pid = p ? p->p_pid : -1; \
- (in)->pgid = p ? p->p_pgid : -1; \
- (in)->sid = (p && p->p_session && p->p_session->s_leader) ? (p->p_session->s_leader->p_pid) : -1; \
- sx_sunlock(&proctree_lock); \
- if (ident != NOCRED) { \
- (in)->cred.cr_uid = ident->cr_uid; \
- (in)->cred.cr_groupid = ident->cr_gid; \
- } else { \
- bzero(&((in)->cred),sizeof(struct coda_cred)); \
- (in)->cred.cr_uid = -1; \
- (in)->cred.cr_groupid = -1; \
- }
+#define INIT_IN(in, op, ident, p) do { \
+ (in)->opcode = (op); \
+ sx_slock(&proctree_lock); \
+ (in)->pid = p ? p->p_pid : -1; \
+ (in)->pgid = p ? p->p_pgid : -1; \
+ (in)->sid = (p && p->p_session && p->p_session->s_leader) ? \
+ (p->p_session->s_leader->p_pid) : -1; \
+ sx_sunlock(&proctree_lock); \
+ if (ident != NOCRED) { \
+ (in)->cred.cr_uid = ident->cr_uid; \
+ (in)->cred.cr_groupid = ident->cr_gid; \
+ } else { \
+ bzero(&((in)->cred),sizeof(struct coda_cred)); \
+ (in)->cred.cr_uid = -1; \
+ (in)->cred.cr_groupid = -1; \
+ } \
+} while (0)
#else
-#define INIT_IN(in, op, ident, p) \
- (in)->opcode = (op); \
- (in)->pid = p ? p->p_pid : -1; \
- (in)->pgid = p ? p->p_pgid : -1; \
- if (ident != NOCRED) { \
- (in)->uid = ident->cr_uid; \
- } else { \
- (in)->uid = -1; \
- }
+#define INIT_IN(in, op, ident, p) do { \
+ (in)->opcode = (op); \
+ (in)->pid = p ? p->p_pid : -1; \
+ (in)->pgid = p ? p->p_pgid : -1; \
+ if (ident != NOCRED) \
+ (in)->uid = ident->cr_uid; \
+ else \
+ (in)->uid = -1; \
+} while (0)
#endif
-#define CNV_OFLAG(to, from) \
- do { \
- to = 0; \
- if (from & FREAD) to |= C_O_READ; \
- if (from & FWRITE) to |= C_O_WRITE; \
- if (from & O_TRUNC) to |= C_O_TRUNC; \
- if (from & O_EXCL) to |= C_O_EXCL; \
- if (from & O_CREAT) to |= C_O_CREAT; \
- } while (0)
-
-#define CNV_VV2V_ATTR(top, fromp) \
- do { \
- (top)->va_type = (fromp)->va_type; \
- (top)->va_mode = (fromp)->va_mode; \
- (top)->va_nlink = (fromp)->va_nlink; \
- (top)->va_uid = (fromp)->va_uid; \
- (top)->va_gid = (fromp)->va_gid; \
- (top)->va_fsid = VNOVAL; \
- (top)->va_fileid = (fromp)->va_fileid; \
- (top)->va_size = (fromp)->va_size; \
- (top)->va_blocksize = (fromp)->va_blocksize; \
- (top)->va_atime = (fromp)->va_atime; \
- (top)->va_mtime = (fromp)->va_mtime; \
- (top)->va_ctime = (fromp)->va_ctime; \
- (top)->va_gen = (fromp)->va_gen; \
- (top)->va_flags = (fromp)->va_flags; \
- (top)->va_rdev = (fromp)->va_rdev; \
- (top)->va_bytes = (fromp)->va_bytes; \
- (top)->va_filerev = (fromp)->va_filerev; \
- (top)->va_vaflags = VNOVAL; \
- (top)->va_spare = VNOVAL; \
- } while (0)
-
-#define CNV_V2VV_ATTR(top, fromp) \
- do { \
- (top)->va_type = (fromp)->va_type; \
- (top)->va_mode = (fromp)->va_mode; \
- (top)->va_nlink = (fromp)->va_nlink; \
- (top)->va_uid = (fromp)->va_uid; \
- (top)->va_gid = (fromp)->va_gid; \
- (top)->va_fileid = (fromp)->va_fileid; \
- (top)->va_size = (fromp)->va_size; \
- (top)->va_blocksize = (fromp)->va_blocksize; \
- (top)->va_atime = (fromp)->va_atime; \
- (top)->va_mtime = (fromp)->va_mtime; \
- (top)->va_ctime = (fromp)->va_ctime; \
- (top)->va_gen = (fromp)->va_gen; \
- (top)->va_flags = (fromp)->va_flags; \
- (top)->va_rdev = (fromp)->va_rdev; \
- (top)->va_bytes = (fromp)->va_bytes; \
- (top)->va_filerev = (fromp)->va_filerev; \
- } while (0)
+#define CNV_OFLAG(to, from) do { \
+ to = 0; \
+ if (from & FREAD) to |= C_O_READ; \
+ if (from & FWRITE) to |= C_O_WRITE; \
+ if (from & O_TRUNC) to |= C_O_TRUNC; \
+ if (from & O_EXCL) to |= C_O_EXCL; \
+ if (from & O_CREAT) to |= C_O_CREAT; \
+} while (0)
+
+#define CNV_VV2V_ATTR(top, fromp) do { \
+ (top)->va_type = (fromp)->va_type; \
+ (top)->va_mode = (fromp)->va_mode; \
+ (top)->va_nlink = (fromp)->va_nlink; \
+ (top)->va_uid = (fromp)->va_uid; \
+ (top)->va_gid = (fromp)->va_gid; \
+ (top)->va_fsid = VNOVAL; \
+ (top)->va_fileid = (fromp)->va_fileid; \
+ (top)->va_size = (fromp)->va_size; \
+ (top)->va_blocksize = (fromp)->va_blocksize; \
+ (top)->va_atime = (fromp)->va_atime; \
+ (top)->va_mtime = (fromp)->va_mtime; \
+ (top)->va_ctime = (fromp)->va_ctime; \
+ (top)->va_gen = (fromp)->va_gen; \
+ (top)->va_flags = (fromp)->va_flags; \
+ (top)->va_rdev = (fromp)->va_rdev; \
+ (top)->va_bytes = (fromp)->va_bytes; \
+ (top)->va_filerev = (fromp)->va_filerev; \
+ (top)->va_vaflags = VNOVAL; \
+ (top)->va_spare = VNOVAL; \
+} while (0)
+
+#define CNV_V2VV_ATTR(top, fromp) do { \
+ (top)->va_type = (fromp)->va_type; \
+ (top)->va_mode = (fromp)->va_mode; \
+ (top)->va_nlink = (fromp)->va_nlink; \
+ (top)->va_uid = (fromp)->va_uid; \
+ (top)->va_gid = (fromp)->va_gid; \
+ (top)->va_fileid = (fromp)->va_fileid; \
+ (top)->va_size = (fromp)->va_size; \
+ (top)->va_blocksize = (fromp)->va_blocksize; \
+ (top)->va_atime = (fromp)->va_atime; \
+ (top)->va_mtime = (fromp)->va_mtime; \
+ (top)->va_ctime = (fromp)->va_ctime; \
+ (top)->va_gen = (fromp)->va_gen; \
+ (top)->va_flags = (fromp)->va_flags; \
+ (top)->va_rdev = (fromp)->va_rdev; \
+ (top)->va_bytes = (fromp)->va_bytes; \
+ (top)->va_filerev = (fromp)->va_filerev; \
+} while (0)
int coda_kernel_version = CODA_KERNEL_VERSION;
int
-venus_root(void *mdp,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid)
+venus_root(void *mdp, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid)
{
- DECL_NO_IN(coda_root); /* sets Isize & Osize */
- ALLOC_NO_IN(coda_root); /* sets inp & outp */
+ DECL_NO_IN(coda_root); /* sets Isize & Osize */
+ ALLOC_NO_IN(coda_root); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(inp, CODA_ROOT, cred, p);
+ /* send the open to venus. */
+ INIT_IN(inp, CODA_ROOT, cred, p);
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error)
- *VFid = outp->Fid;
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error)
+ *VFid = outp->Fid;
- CODA_FREE(inp, coda_root_size);
- return error;
+ CODA_FREE(inp, coda_root_size);
+ return (error);
}
int
-venus_open(void *mdp, CodaFid *fid, int flag,
- struct ucred *cred, struct proc *p,
-/*out*/ struct vnode **vp)
+venus_open(void *mdp, CodaFid *fid, int flag, struct ucred *cred,
+ struct proc *p, /*out*/ struct vnode **vp)
{
- int cflag;
- DECL(coda_open_by_fd); /* sets Isize & Osize */
- ALLOC(coda_open_by_fd); /* sets inp & outp */
+ int cflag;
+ DECL(coda_open_by_fd); /* sets Isize & Osize */
+ ALLOC(coda_open_by_fd); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_OPEN_BY_FD, cred, p);
- inp->Fid = *fid;
- CNV_OFLAG(cflag, flag);
- inp->flags = cflag;
+ /* send the open to venus. */
+ INIT_IN(&inp->ih, CODA_OPEN_BY_FD, cred, p);
+ inp->Fid = *fid;
+ CNV_OFLAG(cflag, flag);
+ inp->flags = cflag;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- *vp = error ? NULL : outp->vp;
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ *vp = error ? NULL : outp->vp;
- CODA_FREE(inp, coda_open_by_fd_size);
- return error;
+ CODA_FREE(inp, coda_open_by_fd_size);
+ return (error);
}
int
-venus_close(void *mdp, CodaFid *fid, int flag,
- struct ucred *cred, struct proc *p)
+venus_close(void *mdp, CodaFid *fid, int flag, struct ucred *cred,
+ struct proc *p)
{
- int cflag;
- DECL_NO_OUT(coda_close); /* sets Isize & Osize */
- ALLOC_NO_OUT(coda_close); /* sets inp & outp */
+ int cflag;
+ DECL_NO_OUT(coda_close); /* sets Isize & Osize */
+ ALLOC_NO_OUT(coda_close); /* sets inp & outp */
- INIT_IN(&inp->ih, CODA_CLOSE, cred, p);
- inp->Fid = *fid;
- CNV_OFLAG(cflag, flag);
- inp->flags = cflag;
+ INIT_IN(&inp->ih, CODA_CLOSE, cred, p);
+ inp->Fid = *fid;
+ CNV_OFLAG(cflag, flag);
+ inp->flags = cflag;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_close_size);
- return error;
+ CODA_FREE(inp, coda_close_size);
+ return (error);
}
/*
- * these two calls will not exist!!! the container file is read/written
+ * These two calls will not exist!!! The container file is read/written
* directly.
*/
void
@@ -251,424 +248,444 @@ venus_write(void)
}
/*
- * this is a bit sad too. the ioctl's are for the control file, not for
+ * This is a bit sad too. the ioctl's are for the control file, not for
* normal files.
*/
int
-venus_ioctl(void *mdp, CodaFid *fid,
- int com, int flag, caddr_t data,
- struct ucred *cred, struct proc *p)
+venus_ioctl(void *mdp, CodaFid *fid, int com, int flag, caddr_t data,
+ struct ucred *cred, struct proc *p)
{
- DECL(coda_ioctl); /* sets Isize & Osize */
- struct PioctlData *iap = (struct PioctlData *)data;
- int tmp;
-
- coda_ioctl_size = VC_MAXMSGSIZE;
- ALLOC(coda_ioctl); /* sets inp & outp */
-
- INIT_IN(&inp->ih, CODA_IOCTL, cred, p);
- inp->Fid = *fid;
-
- /* command was mutated by increasing its size field to reflect the
- * path and follow args. we need to subtract that out before sending
- * the command to venus.
- */
- inp->cmd = (com & ~(IOCPARM_MASK << 16));
- tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int);
- inp->cmd |= (tmp & IOCPARM_MASK) << 16;
-
- inp->rwflag = flag;
- inp->len = iap->vi.in_size;
- inp->data = (char *)(sizeof (struct coda_ioctl_in));
-
- error = copyin(iap->vi.in, (char*)inp + (long)inp->data,
- iap->vi.in_size);
- if (error) {
- CODA_FREE(inp, coda_ioctl_size);
- return(error);
- }
-
- Osize = VC_MAXMSGSIZE;
- error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp);
-
- /* copy out the out buffer. */
- if (!error) {
- if (outp->len > iap->vi.out_size) {
- error = EINVAL;
- } else {
- error = copyout((char *)outp + (long)outp->data,
+ DECL(coda_ioctl); /* sets Isize & Osize */
+ struct PioctlData *iap = (struct PioctlData *)data;
+ int tmp;
+
+ coda_ioctl_size = VC_MAXMSGSIZE;
+ ALLOC(coda_ioctl); /* sets inp & outp */
+
+ INIT_IN(&inp->ih, CODA_IOCTL, cred, p);
+ inp->Fid = *fid;
+
+ /*
+ * Command was mutated by increasing its size field to reflect the
+ * path and follow args. we need to subtract that out before sending
+ * the command to venus.
+ */
+ inp->cmd = (com & ~(IOCPARM_MASK << 16));
+ tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int);
+ inp->cmd |= (tmp & IOCPARM_MASK) << 16;
+
+ inp->rwflag = flag;
+ inp->len = iap->vi.in_size;
+ inp->data = (char *)(sizeof (struct coda_ioctl_in));
+
+ error = copyin(iap->vi.in, (char*)inp + (long)inp->data,
+ iap->vi.in_size);
+ if (error) {
+ CODA_FREE(inp, coda_ioctl_size);
+ return (error);
+ }
+
+ Osize = VC_MAXMSGSIZE;
+ error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp);
+
+ /*
+ * Copy out the out buffer.
+ */
+ if (!error) {
+ if (outp->len > iap->vi.out_size)
+ error = EINVAL;
+ else
+ error = copyout((char *)outp + (long)outp->data,
iap->vi.out, iap->vi.out_size);
}
- }
- CODA_FREE(inp, coda_ioctl_size);
- return error;
+ CODA_FREE(inp, coda_ioctl_size);
+ return (error);
}
int
-venus_getattr(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ struct vattr *vap)
+venus_getattr(void *mdp, CodaFid *fid, struct ucred *cred, struct proc *p,
+ /*out*/ struct vattr *vap)
{
- DECL(coda_getattr); /* sets Isize & Osize */
- ALLOC(coda_getattr); /* sets inp & outp */
+ DECL(coda_getattr); /* sets Isize & Osize */
+ ALLOC(coda_getattr); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_GETATTR, cred, p);
- inp->Fid = *fid;
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_GETATTR, cred, p);
+ inp->Fid = *fid;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- CNV_VV2V_ATTR(vap, &outp->attr);
- }
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error)
+ CNV_VV2V_ATTR(vap, &outp->attr);
- CODA_FREE(inp, coda_getattr_size);
- return error;
+ CODA_FREE(inp, coda_getattr_size);
+ return (error);
}
int
-venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap,
- struct ucred *cred, struct proc *p)
+venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap, struct ucred *cred,
+ struct proc *p)
{
- DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */
- ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */
+ DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */
+ ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_SETATTR, cred, p);
- inp->Fid = *fid;
- CNV_V2VV_ATTR(&inp->attr, vap);
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_SETATTR, cred, p);
+ inp->Fid = *fid;
+ CNV_V2VV_ATTR(&inp->attr, vap);
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_setattr_size);
- return error;
+ CODA_FREE(inp, coda_setattr_size);
+ return (error);
}
int
-venus_access(void *mdp, CodaFid *fid, int mode,
- struct ucred *cred, struct proc *p)
+venus_access(void *mdp, CodaFid *fid, int mode, struct ucred *cred,
+ struct proc *p)
{
- DECL_NO_OUT(coda_access); /* sets Isize & Osize */
- ALLOC_NO_OUT(coda_access); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_ACCESS, cred, p);
- inp->Fid = *fid;
- /* NOTE:
- * FreeBSD and Venus internals use the "data" in the low 3 bits.
- * Hence, the conversion.
- */
- inp->flags = mode>>6;
-
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
-
- CODA_FREE(inp, coda_access_size);
- return error;
+ DECL_NO_OUT(coda_access); /* sets Isize & Osize */
+ ALLOC_NO_OUT(coda_access); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_ACCESS, cred, p);
+ inp->Fid = *fid;
+
+ /*
+ * NOTE: FreeBSD and Venus internals use the "data" in the low 3
+ * bits. Hence, the conversion.
+ */
+ inp->flags = mode>>6;
+
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+
+ CODA_FREE(inp, coda_access_size);
+ return (error);
}
int
-venus_readlink(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ char **str, int *len)
+venus_readlink(void *mdp, CodaFid *fid, struct ucred *cred, struct proc *p,
+ /*out*/ char **str, int *len)
{
- DECL(coda_readlink); /* sets Isize & Osize */
- coda_readlink_size += CODA_MAXPATHLEN;
- ALLOC(coda_readlink); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_READLINK, cred, p);
- inp->Fid = *fid;
-
- Osize += CODA_MAXPATHLEN;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- CODA_ALLOC(*str, char *, outp->count);
- *len = outp->count;
- bcopy((char *)outp + (long)outp->data, *str, *len);
- }
-
- CODA_FREE(inp, coda_readlink_size);
- return error;
+ DECL(coda_readlink); /* sets Isize & Osize */
+ coda_readlink_size += CODA_MAXPATHLEN;
+ ALLOC(coda_readlink); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_READLINK, cred, p);
+ inp->Fid = *fid;
+
+ Osize += CODA_MAXPATHLEN;
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ CODA_ALLOC(*str, char *, outp->count);
+ *len = outp->count;
+ bcopy((char *)outp + (long)outp->data, *str, *len);
+ }
+
+ CODA_FREE(inp, coda_readlink_size);
+ return (error);
}
int
venus_fsync(void *mdp, CodaFid *fid, struct proc *p)
{
- DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */
- ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */
+ DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */
+ ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_FSYNC, NOCRED, p); /* XXX: should be cached mount cred */
- inp->Fid = *fid;
+ /*
+ * Send the open to venus.
+ *
+ * XXX: should be cached mount cred.
+ */
+ INIT_IN(&inp->ih, CODA_FSYNC, NOCRED, p);
+ inp->Fid = *fid;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_fsync_size);
- return error;
+ CODA_FREE(inp, coda_fsync_size);
+ return (error);
}
int
-venus_lookup(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, int *vtype)
+venus_lookup(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p, /*out*/ CodaFid *VFid, int *vtype)
{
- DECL(coda_lookup); /* sets Isize & Osize */
- coda_lookup_size += len + 1;
- ALLOC(coda_lookup); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_LOOKUP, cred, p);
- inp->Fid = *fid;
-
- /* NOTE:
- * Between version 1 and version 2 we have added an extra flag field
- * to this structure. But because the string was at the end and because
- * of the wierd way we represent strings by having the slot point to
- * where the string characters are in the "heap", we can just slip the
- * flag parameter in after the string slot pointer and veni that don't
- * know better won't see this new flag field ...
- * Otherwise we'd need two different venus_lookup functions.
- */
- inp->name = Isize;
- inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */
- STRCPY(name, nm, len); /* increments Isize */
-
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- *VFid = outp->Fid;
- *vtype = outp->vtype;
- }
-
- CODA_FREE(inp, coda_lookup_size);
- return error;
+ DECL(coda_lookup); /* sets Isize & Osize */
+ coda_lookup_size += len + 1;
+ ALLOC(coda_lookup); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_LOOKUP, cred, p);
+ inp->Fid = *fid;
+
+ /*
+ * NOTE: Between version 1 and version 2 we have added an extra flag
+ * field to this structure. But because the string was at the end
+ * and because of the wierd way we represent strings by having the
+ * slot point to where the string characters are in the "heap", we
+ * can just slip the flag parameter in after the string slot pointer
+ * and veni that don't know better won't see this new flag field ...
+ * Otherwise we'd need two different venus_lookup functions.
+ */
+ inp->name = Isize;
+ inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */
+ STRCPY(name, nm, len); /* increments Isize */
+
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ *VFid = outp->Fid;
+ *vtype = outp->vtype;
+ }
+
+ CODA_FREE(inp, coda_lookup_size);
+ return (error);
}
int
-venus_create(void *mdp, CodaFid *fid,
- const char *nm, int len, int exclusive, int mode, struct vattr *va,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, struct vattr *attr)
+venus_create(void *mdp, CodaFid *fid, const char *nm, int len, int exclusive,
+ int mode, struct vattr *va, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid, struct vattr *attr)
{
- DECL(coda_create); /* sets Isize & Osize */
- coda_create_size += len + 1;
- ALLOC(coda_create); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_CREATE, cred, p);
- inp->Fid = *fid;
- inp->excl = exclusive ? C_O_EXCL : 0;
- inp->mode = mode;
- CNV_V2VV_ATTR(&inp->attr, va);
-
- inp->name = Isize;
- STRCPY(name, nm, len); /* increments Isize */
-
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- *VFid = outp->Fid;
- CNV_VV2V_ATTR(attr, &outp->attr);
- }
-
- CODA_FREE(inp, coda_create_size);
- return error;
+ DECL(coda_create); /* sets Isize & Osize */
+ coda_create_size += len + 1;
+ ALLOC(coda_create); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_CREATE, cred, p);
+ inp->Fid = *fid;
+ inp->excl = exclusive ? C_O_EXCL : 0;
+ inp->mode = mode;
+ CNV_V2VV_ATTR(&inp->attr, va);
+
+ inp->name = Isize;
+ STRCPY(name, nm, len); /* increments Isize */
+
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ *VFid = outp->Fid;
+ CNV_VV2V_ATTR(attr, &outp->attr);
+ }
+
+ CODA_FREE(inp, coda_create_size);
+ return (error);
}
int
-venus_remove(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p)
+venus_remove(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p)
{
- DECL_NO_OUT(coda_remove); /* sets Isize & Osize */
- coda_remove_size += len + 1;
- ALLOC_NO_OUT(coda_remove); /* sets inp & outp */
+ DECL_NO_OUT(coda_remove); /* sets Isize & Osize */
+ coda_remove_size += len + 1;
+ ALLOC_NO_OUT(coda_remove); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_REMOVE, cred, p);
- inp->Fid = *fid;
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_REMOVE, cred, p);
+ inp->Fid = *fid;
- inp->name = Isize;
- STRCPY(name, nm, len); /* increments Isize */
+ inp->name = Isize;
+ STRCPY(name, nm, len); /* increments Isize */
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_remove_size);
- return error;
+ CODA_FREE(inp, coda_remove_size);
+ return (error);
}
int
-venus_link(void *mdp, CodaFid *fid, CodaFid *tfid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p)
+venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, const char *nm, int len,
+ struct ucred *cred, struct proc *p)
{
- DECL_NO_OUT(coda_link); /* sets Isize & Osize */
- coda_link_size += len + 1;
- ALLOC_NO_OUT(coda_link); /* sets inp & outp */
+ DECL_NO_OUT(coda_link); /* sets Isize & Osize */
+ coda_link_size += len + 1;
+ ALLOC_NO_OUT(coda_link); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_LINK, cred, p);
- inp->sourceFid = *fid;
- inp->destFid = *tfid;
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_LINK, cred, p);
+ inp->sourceFid = *fid;
+ inp->destFid = *tfid;
- inp->tname = Isize;
- STRCPY(tname, nm, len); /* increments Isize */
+ inp->tname = Isize;
+ STRCPY(tname, nm, len); /* increments Isize */
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_link_size);
- return error;
+ CODA_FREE(inp, coda_link_size);
+ return (error);
}
int
-venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid,
- const char *nm, int len, const char *tnm, int tlen,
- struct ucred *cred, struct proc *p)
+venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, const char *nm, int len,
+ const char *tnm, int tlen, struct ucred *cred, struct proc *p)
{
- DECL_NO_OUT(coda_rename); /* sets Isize & Osize */
- coda_rename_size += len + 1 + tlen + 1;
- ALLOC_NO_OUT(coda_rename); /* sets inp & outp */
+ DECL_NO_OUT(coda_rename); /* sets Isize & Osize */
+ coda_rename_size += len + 1 + tlen + 1;
+ ALLOC_NO_OUT(coda_rename); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_RENAME, cred, p);
- inp->sourceFid = *fid;
- inp->destFid = *tfid;
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_RENAME, cred, p);
+ inp->sourceFid = *fid;
+ inp->destFid = *tfid;
- inp->srcname = Isize;
- STRCPY(srcname, nm, len); /* increments Isize */
+ inp->srcname = Isize;
+ STRCPY(srcname, nm, len); /* increments Isize */
- inp->destname = Isize;
- STRCPY(destname, tnm, tlen); /* increments Isize */
+ inp->destname = Isize;
+ STRCPY(destname, tnm, tlen); /* increments Isize */
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_rename_size);
- return error;
+ CODA_FREE(inp, coda_rename_size);
+ return (error);
}
int
-venus_mkdir(void *mdp, CodaFid *fid,
- const char *nm, int len, struct vattr *va,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, struct vattr *ova)
+venus_mkdir(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct vattr *va, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid, struct vattr *ova)
{
- DECL(coda_mkdir); /* sets Isize & Osize */
- coda_mkdir_size += len + 1;
- ALLOC(coda_mkdir); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_MKDIR, cred, p);
- inp->Fid = *fid;
- CNV_V2VV_ATTR(&inp->attr, va);
-
- inp->name = Isize;
- STRCPY(name, nm, len); /* increments Isize */
-
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- *VFid = outp->Fid;
- CNV_VV2V_ATTR(ova, &outp->attr);
- }
-
- CODA_FREE(inp, coda_mkdir_size);
- return error;
+ DECL(coda_mkdir); /* sets Isize & Osize */
+ coda_mkdir_size += len + 1;
+ ALLOC(coda_mkdir); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_MKDIR, cred, p);
+ inp->Fid = *fid;
+ CNV_V2VV_ATTR(&inp->attr, va);
+
+ inp->name = Isize;
+ STRCPY(name, nm, len); /* increments Isize */
+
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ *VFid = outp->Fid;
+ CNV_VV2V_ATTR(ova, &outp->attr);
+ }
+
+ CODA_FREE(inp, coda_mkdir_size);
+ return (error);
}
int
-venus_rmdir(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p)
+venus_rmdir(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p)
{
- DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */
- coda_rmdir_size += len + 1;
- ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */
+ DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */
+ coda_rmdir_size += len + 1;
+ ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_RMDIR, cred, p);
- inp->Fid = *fid;
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_RMDIR, cred, p);
+ inp->Fid = *fid;
- inp->name = Isize;
- STRCPY(name, nm, len); /* increments Isize */
+ inp->name = Isize;
+ STRCPY(name, nm, len); /* increments Isize */
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_rmdir_size);
- return error;
+ CODA_FREE(inp, coda_rmdir_size);
+ return (error);
}
int
-venus_symlink(void *mdp, CodaFid *fid,
- const char *lnm, int llen, const char *nm, int len, struct vattr *va,
- struct ucred *cred, struct proc *p)
+venus_symlink(void *mdp, CodaFid *fid, const char *lnm, int llen,
+ const char *nm, int len, struct vattr *va, struct ucred *cred,
+ struct proc *p)
{
- DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */
- coda_symlink_size += llen + 1 + len + 1;
- ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */
+ DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */
+ coda_symlink_size += llen + 1 + len + 1;
+ ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_SYMLINK, cred, p);
- inp->Fid = *fid;
- CNV_V2VV_ATTR(&inp->attr, va);
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_SYMLINK, cred, p);
+ inp->Fid = *fid;
+ CNV_V2VV_ATTR(&inp->attr, va);
- inp->srcname = Isize;
- STRCPY(srcname, lnm, llen); /* increments Isize */
+ inp->srcname = Isize;
+ STRCPY(srcname, lnm, llen); /* increments Isize */
- inp->tname = Isize;
- STRCPY(tname, nm, len); /* increments Isize */
+ inp->tname = Isize;
+ STRCPY(tname, nm, len); /* increments Isize */
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
- CODA_FREE(inp, coda_symlink_size);
- return error;
+ CODA_FREE(inp, coda_symlink_size);
+ return (error);
}
/*
* XXX: Unused.
*/
int
-venus_readdir(void *mdp, CodaFid *fid,
- int count, int offset,
- struct ucred *cred, struct proc *p,
-/*out*/ char *buffer, int *len)
+venus_readdir(void *mdp, CodaFid *fid, int count, int offset,
+ struct ucred *cred, struct proc *p, /*out*/ char *buffer, int *len)
{
- DECL(coda_readdir); /* sets Isize & Osize */
- coda_readdir_size = VC_MAXMSGSIZE;
- ALLOC(coda_readdir); /* sets inp & outp */
-
- /* send the open to venus. */
- INIT_IN(&inp->ih, CODA_READDIR, cred, p);
- inp->Fid = *fid;
- inp->count = count;
- inp->offset = offset;
-
- Osize = VC_MAXMSGSIZE;
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- bcopy((char *)outp + (long)outp->data, buffer, outp->size);
- *len = outp->size;
- }
-
- CODA_FREE(inp, coda_readdir_size);
- return error;
+ DECL(coda_readdir); /* sets Isize & Osize */
+ coda_readdir_size = VC_MAXMSGSIZE;
+ ALLOC(coda_readdir); /* sets inp & outp */
+
+ /*
+ * Send the open to venus.
+ */
+ INIT_IN(&inp->ih, CODA_READDIR, cred, p);
+ inp->Fid = *fid;
+ inp->count = count;
+ inp->offset = offset;
+
+ Osize = VC_MAXMSGSIZE;
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ bcopy((char *)outp + (long)outp->data, buffer, outp->size);
+ *len = outp->size;
+ }
+
+ CODA_FREE(inp, coda_readdir_size);
+ return (error);
}
int
-venus_fhtovp(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, int *vtype)
+venus_fhtovp(void *mdp, CodaFid *fid, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid, int *vtype)
{
- DECL(coda_vget); /* sets Isize & Osize */
- ALLOC(coda_vget); /* sets inp & outp */
-
- /* Send the open to Venus. */
- INIT_IN(&inp->ih, CODA_VGET, cred, p);
- inp->Fid = *fid;
-
- error = coda_call(mdp, Isize, &Osize, (char *)inp);
- if (!error) {
- *VFid = outp->Fid;
- *vtype = outp->vtype;
- }
+ DECL(coda_vget); /* sets Isize & Osize */
+ ALLOC(coda_vget); /* sets inp & outp */
+
+ /*
+ * Send the open to Venus.
+ */
+ INIT_IN(&inp->ih, CODA_VGET, cred, p);
+ inp->Fid = *fid;
+
+ error = coda_call(mdp, Isize, &Osize, (char *)inp);
+ if (!error) {
+ *VFid = outp->Fid;
+ *vtype = outp->vtype;
+ }
- CODA_FREE(inp, coda_vget_size);
- return error;
+ CODA_FREE(inp, coda_vget_size);
+ return (error);
}
diff --git a/sys/fs/coda/coda_venus.h b/sys/fs/coda/coda_venus.h
index d8f0198..97e7be3 100644
--- a/sys/fs/coda/coda_venus.h
+++ b/sys/fs/coda/coda_venus.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,119 +14,69 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/coda/coda_venus.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/coda/coda_venus.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
*/
-int
-venus_root(void *mdp,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid);
-
-int
-venus_open(void *mdp, CodaFid *fid, int flag,
- struct ucred *cred, struct proc *p,
-/*out*/ struct vnode **vp);
-
-int
-venus_close(void *mdp, CodaFid *fid, int flag,
- struct ucred *cred, struct proc *p);
-
-void
-venus_read(void);
-
-void
-venus_write(void);
-
-int
-venus_ioctl(void *mdp, CodaFid *fid,
- int com, int flag, caddr_t data,
- struct ucred *cred, struct proc *p);
-
-int
-venus_getattr(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ struct vattr *vap);
-
-int
-venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap,
- struct ucred *cred, struct proc *p);
-
-int
-venus_access(void *mdp, CodaFid *fid, int mode,
- struct ucred *cred, struct proc *p);
-
-int
-venus_readlink(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ char **str, int *len);
-
-int
-venus_fsync(void *mdp, CodaFid *fid, struct proc *p);
-
-int
-venus_lookup(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, int *vtype);
-
-int
-venus_create(void *mdp, CodaFid *fid,
- const char *nm, int len, int exclusive, int mode, struct vattr *va,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, struct vattr *attr);
-
-int
-venus_remove(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p);
-
-int
-venus_link(void *mdp, CodaFid *fid, CodaFid *tfid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p);
-
-int
-venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid,
- const char *nm, int len, const char *tnm, int tlen,
- struct ucred *cred, struct proc *p);
-
-int
-venus_mkdir(void *mdp, CodaFid *fid,
- const char *nm, int len, struct vattr *va,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, struct vattr *ova);
-
-int
-venus_rmdir(void *mdp, CodaFid *fid,
- const char *nm, int len,
- struct ucred *cred, struct proc *p);
-
-int
-venus_symlink(void *mdp, CodaFid *fid,
- const char *lnm, int llen, const char *nm, int len, struct vattr *va,
- struct ucred *cred, struct proc *p);
-
-int
-venus_readdir(void *mdp, CodaFid *fid,
- int count, int offset,
- struct ucred *cred, struct proc *p,
-/*out*/ char *buffer, int *len);
-
-int
-venus_fhtovp(void *mdp, CodaFid *fid,
- struct ucred *cred, struct proc *p,
-/*out*/ CodaFid *VFid, int *vtype);
+#ifndef _CODA_VENUS_H_
+#define _CODA_VENUS_H_
+
+int venus_root(void *mdp, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid);
+int venus_open(void *mdp, CodaFid *fid, int flag, struct ucred *cred,
+ struct proc *p, /*out*/ struct vnode **vp);
+int venus_close(void *mdp, CodaFid *fid, int flag, struct ucred *cred,
+ struct proc *p);
+void venus_read(void);
+void venus_write(void);
+int venus_ioctl(void *mdp, CodaFid *fid, int com, int flag, caddr_t data,
+ struct ucred *cred, struct proc *p);
+int venus_getattr(void *mdp, CodaFid *fid, struct ucred *cred,
+ struct proc *p, /*out*/ struct vattr *vap);
+int venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap,
+ struct ucred *cred, struct proc *p);
+int venus_access(void *mdp, CodaFid *fid, int mode, struct ucred *cred,
+ struct proc *p);
+int venus_readlink(void *mdp, CodaFid *fid, struct ucred *cred,
+ struct proc *p, /*out*/ char **str, int *len);
+int venus_fsync(void *mdp, CodaFid *fid, struct proc *p);
+int venus_lookup(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p, /*out*/ CodaFid *VFid,
+ int *vtype);
+int venus_create(void *mdp, CodaFid *fid, const char *nm, int len,
+ int exclusive, int mode, struct vattr *va, struct ucred *cred,
+ struct proc *p, /*out*/ CodaFid *VFid, struct vattr *attr);
+int venus_remove(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p);
+int venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, const char *nm,
+ int len, struct ucred *cred, struct proc *p);
+int venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, const char *nm,
+ int len, const char *tnm, int tlen, struct ucred *cred,
+ struct proc *p);
+int venus_mkdir(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct vattr *va, struct ucred *cred, struct proc *p,
+ /*out*/ CodaFid *VFid, struct vattr *ova);
+int venus_rmdir(void *mdp, CodaFid *fid, const char *nm, int len,
+ struct ucred *cred, struct proc *p);
+int venus_symlink(void *mdp, CodaFid *fid, const char *lnm, int llen,
+ const char *nm, int len, struct vattr *va, struct ucred *cred,
+ struct proc *p);
+int venus_readdir(void *mdp, CodaFid *fid, int count, int offset,
+ struct ucred *cred, struct proc *p, /*out*/ char *buffer,
+ int *len);
+int venus_fhtovp(void *mdp, CodaFid *fid, struct ucred *cred,
+ struct proc *p, /*out*/ CodaFid *VFid, int *vtype);
+
+#endif /* !_CODA_VENUS_H_ */
diff --git a/sys/fs/coda/coda_vfsops.c b/sys/fs/coda/coda_vfsops.c
index e5c4b19..2f7b373 100644
--- a/sys/fs/coda/coda_vfsops.c
+++ b/sys/fs/coda/coda_vfsops.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,20 +13,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/cfs/coda_vfsops.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
+
/*-
* Mach Operating System
* Copyright (c) 1989 Carnegie-Mellon University
@@ -37,7 +38,7 @@
/*
* This code was written for the Coda filesystem at Carnegie Mellon
* University. Contributers include David Steere, James Kistler, and
- * M. Satyanarayanan.
+ * M. Satyanarayanan.
*/
#include <sys/cdefs.h>
@@ -64,337 +65,332 @@ MALLOC_DEFINE(M_CODA, "coda", "Various Coda Structures");
int codadebug = 0;
int coda_vfsop_print_entry = 0;
-#define ENTRY if(coda_vfsop_print_entry) myprintf(("Entered %s\n",__func__))
+#define ENTRY do { \
+ if (coda_vfsop_print_entry) \
+ myprintf(("Entered %s\n", __func__)); \
+} while (0)
struct vnode *coda_ctlvp;
-/* structure to keep statistics of internally generated/satisfied calls */
-
-struct coda_op_stats coda_vfsopstats[CODA_VFSOPS_SIZE];
+/*
+ * Structure to keep statistics of internally generated/satisfied calls.
+ */
+static struct coda_op_stats coda_vfsopstats[CODA_VFSOPS_SIZE];
-#define MARK_ENTRY(op) (coda_vfsopstats[op].entries++)
-#define MARK_INT_SAT(op) (coda_vfsopstats[op].sat_intrn++)
-#define MARK_INT_FAIL(op) (coda_vfsopstats[op].unsat_intrn++)
-#define MARK_INT_GEN(op) (coda_vfsopstats[op].gen_intrn++)
+#define MARK_ENTRY(op) (coda_vfsopstats[op].entries++)
+#define MARK_INT_SAT(op) (coda_vfsopstats[op].sat_intrn++)
+#define MARK_INT_FAIL(op) (coda_vfsopstats[op].unsat_intrn++)
+#define MARK_INT_GEN(op) (coda_vfsopstats[op].gen_intrn++)
int
coda_vfsopstats_init(void)
{
- register int i;
-
- for (i=0;i<CODA_VFSOPS_SIZE;i++) {
+ int i;
+
+ for (i=0; i<CODA_VFSOPS_SIZE;i++) {
coda_vfsopstats[i].opcode = i;
coda_vfsopstats[i].entries = 0;
coda_vfsopstats[i].sat_intrn = 0;
coda_vfsopstats[i].unsat_intrn = 0;
coda_vfsopstats[i].gen_intrn = 0;
}
-
- return 0;
+ return (0);
}
static const char *coda_opts[] = { "from", NULL };
/*
* cfs mount vfsop
+ *
* Set up mount info record and attach it to vfs struct.
*/
/*ARGSUSED*/
int
coda_mount(struct mount *vfsp, struct thread *td)
{
- struct vnode *dvp;
- struct cnode *cp;
- struct cdev *dev;
- struct coda_mntinfo *mi;
- struct vnode *rootvp;
- CodaFid rootfid = INVAL_FID;
- CodaFid ctlfid = CTL_FID;
- int error;
- struct nameidata ndp;
- ENTRY;
- char *from;
-
- if (vfs_filteropt(vfsp->mnt_optnew, coda_opts))
- return (EINVAL);
-
- from = vfs_getopts(vfsp->mnt_optnew, "from", &error);
- if (error)
- return (error);
+ struct vnode *dvp;
+ struct cnode *cp;
+ struct cdev *dev;
+ struct coda_mntinfo *mi;
+ struct vnode *rootvp;
+ CodaFid rootfid = INVAL_FID;
+ CodaFid ctlfid = CTL_FID;
+ int error;
+ struct nameidata ndp;
+ ENTRY;
+ char *from;
+
+ if (vfs_filteropt(vfsp->mnt_optnew, coda_opts))
+ return (EINVAL);
+ from = vfs_getopts(vfsp->mnt_optnew, "from", &error);
+ if (error)
+ return (error);
+ coda_vfsopstats_init();
+ coda_vnodeopstats_init();
+ MARK_ENTRY(CODA_MOUNT_STATS);
+ if (CODA_MOUNTED(vfsp)) {
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
+ return (EBUSY);
+ }
- coda_vfsopstats_init();
- coda_vnodeopstats_init();
-
- MARK_ENTRY(CODA_MOUNT_STATS);
- if (CODA_MOUNTED(vfsp)) {
- MARK_INT_FAIL(CODA_MOUNT_STATS);
- return(EBUSY);
- }
-
- /* Validate mount device. Similar to getmdev(). */
- NDINIT(&ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, from, td);
- error = namei(&ndp);
- dvp = ndp.ni_vp;
-
- if (error) {
- MARK_INT_FAIL(CODA_MOUNT_STATS);
- return (error);
- }
- if (dvp->v_type != VCHR) {
- MARK_INT_FAIL(CODA_MOUNT_STATS);
+ /*
+ * Validate mount device. Similar to getmdev().
+ */
+ NDINIT(&ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, from, td);
+ error = namei(&ndp);
+ dvp = ndp.ni_vp;
+ if (error) {
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
+ return (error);
+ }
+ if (dvp->v_type != VCHR) {
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
+ vrele(dvp);
+ NDFREE(&ndp, NDF_ONLY_PNBUF);
+ return (ENXIO);
+ }
+ dev = dvp->v_rdev;
vrele(dvp);
NDFREE(&ndp, NDF_ONLY_PNBUF);
- return(ENXIO);
- }
- dev = dvp->v_rdev;
- vrele(dvp);
- NDFREE(&ndp, NDF_ONLY_PNBUF);
-
- /*
- * Initialize the mount record and link it to the vfs struct
- */
- mi = dev2coda_mntinfo(dev);
- if (!mi) {
- MARK_INT_FAIL(CODA_MOUNT_STATS);
- printf("Coda mount: %s is not a cfs device\n", from);
- return(ENXIO);
- }
-
- if (!VC_OPEN(&mi->mi_vcomm)) {
- MARK_INT_FAIL(CODA_MOUNT_STATS);
- return(ENODEV);
- }
-
- /* No initialization (here) of mi_vcomm! */
- vfsp->mnt_data = mi;
- vfs_getnewfsid (vfsp);
-
- mi->mi_vfsp = vfsp;
- mi->mi_started = 0; /* XXX See coda_root() */
-
- /*
- * Make a root vnode to placate the Vnode interface, but don't
- * actually make the CODA_ROOT call to venus until the first call
- * to coda_root in case a server is down while venus is starting.
- */
- cp = make_coda_node(&rootfid, vfsp, VDIR);
- rootvp = CTOV(cp);
- rootvp->v_vflag |= VV_ROOT;
-
- cp = make_coda_node(&ctlfid, vfsp, VREG);
- coda_ctlvp = CTOV(cp);
-
- /* Add vfs and rootvp to chain of vfs hanging off mntinfo */
- mi->mi_vfsp = vfsp;
- mi->mi_rootvp = rootvp;
-
- vfs_mountedfrom(vfsp, from);
- /* error is currently guaranteed to be zero, but in case some
- code changes... */
- CODADEBUG(1,
- myprintf(("coda_omount returned %d\n",error)););
- if (error)
- MARK_INT_FAIL(CODA_MOUNT_STATS);
- else
- MARK_INT_SAT(CODA_MOUNT_STATS);
-
- return(error);
-}
-int
-coda_unmount(vfsp, mntflags, td)
- struct mount *vfsp;
- int mntflags;
- struct thread *td;
-{
- struct coda_mntinfo *mi = vftomi(vfsp);
- int active, error = 0;
-
- ENTRY;
- MARK_ENTRY(CODA_UMOUNT_STATS);
- if (!CODA_MOUNTED(vfsp)) {
- MARK_INT_FAIL(CODA_UMOUNT_STATS);
- return(EINVAL);
- }
-
- if (mi->mi_vfsp == vfsp) { /* We found the victim */
- if (!IS_UNMOUNTING(VTOC(mi->mi_rootvp)))
- return (EBUSY); /* Venus is still running */
-
-#ifdef DEBUG
- printf("coda_unmount: ROOT: vp %p, cp %p\n", mi->mi_rootvp, VTOC(mi->mi_rootvp));
-#endif
- vrele(mi->mi_rootvp);
- mi->mi_rootvp = NULL;
- vrele(coda_ctlvp);
- coda_ctlvp = NULL;
- active = coda_kill(vfsp, NOT_DOWNCALL);
- error = vflush(mi->mi_vfsp, 0, FORCECLOSE, td);
-#ifdef CODA_VERBOSE
- printf("coda_unmount: active = %d, vflush active %d\n", active, error);
-#endif
- error = 0;
- /* I'm going to take this out to allow lookups to go through. I'm
- * not sure it's important anyway. -- DCS 2/2/94
+ /*
+ * Initialize the mount record and link it to the vfs struct.
*/
- /* vfsp->VFS_DATA = NULL; */
+ mi = dev2coda_mntinfo(dev);
+ if (!mi) {
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
+ printf("Coda mount: %s is not a cfs device\n", from);
+ return (ENXIO);
+ }
+ if (!VC_OPEN(&mi->mi_vcomm)) {
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
+ return (ENODEV);
+ }
- /* No more vfsp's to hold onto */
- mi->mi_vfsp = NULL;
+ /*
+ * No initialization (here) of mi_vcomm!
+ */
+ vfsp->mnt_data = mi;
+ vfs_getnewfsid (vfsp);
+ mi->mi_vfsp = vfsp;
+ mi->mi_started = 0; /* XXX See coda_root() */
+ /*
+ * Make a root vnode to placate the Vnode interface, but don't
+ * actually make the CODA_ROOT call to venus until the first call to
+ * coda_root in case a server is down while venus is starting.
+ */
+ cp = make_coda_node(&rootfid, vfsp, VDIR);
+ rootvp = CTOV(cp);
+ rootvp->v_vflag |= VV_ROOT;
+ cp = make_coda_node(&ctlfid, vfsp, VREG);
+ coda_ctlvp = CTOV(cp);
+
+ /*
+ * Add vfs and rootvp to chain of vfs hanging off mntinfo.
+ */
+ mi->mi_vfsp = vfsp;
+ mi->mi_rootvp = rootvp;
+ vfs_mountedfrom(vfsp, from);
+
+ /*
+ * Error is currently guaranteed to be zero, but in case some code
+ * changes...
+ */
+ CODADEBUG(1, myprintf(("coda_mount returned %d\n", error)););
if (error)
- MARK_INT_FAIL(CODA_UMOUNT_STATS);
+ MARK_INT_FAIL(CODA_MOUNT_STATS);
else
- MARK_INT_SAT(CODA_UMOUNT_STATS);
+ MARK_INT_SAT(CODA_MOUNT_STATS);
+ return (error);
+}
- return(error);
- }
- return (EINVAL);
+int
+coda_unmount(struct mount *vfsp, int mntflags, struct thread *td)
+{
+ struct coda_mntinfo *mi = vftomi(vfsp);
+ int active, error = 0;
+
+ ENTRY;
+ MARK_ENTRY(CODA_UMOUNT_STATS);
+ if (!CODA_MOUNTED(vfsp)) {
+ MARK_INT_FAIL(CODA_UMOUNT_STATS);
+ return (EINVAL);
+ }
+ if (mi->mi_vfsp == vfsp) {
+ /*
+ * We found the victim.
+ */
+ if (!IS_UNMOUNTING(VTOC(mi->mi_rootvp)))
+ return (EBUSY); /* Venus is still running */
+#ifdef DEBUG
+ printf("coda_unmount: ROOT: vp %p, cp %p\n", mi->mi_rootvp,
+ VTOC(mi->mi_rootvp));
+#endif
+ vrele(mi->mi_rootvp);
+ mi->mi_rootvp = NULL;
+ vrele(coda_ctlvp);
+ coda_ctlvp = NULL;
+ active = coda_kill(vfsp, NOT_DOWNCALL);
+ error = vflush(mi->mi_vfsp, 0, FORCECLOSE, td);
+#ifdef CODA_VERBOSE
+ printf("coda_unmount: active = %d, vflush active %d\n",
+ active, error);
+#endif
+ error = 0;
+ /*
+ * I'm going to take this out to allow lookups to go through.
+ * I'm not sure it's important anyway. -- DCS 2/2/94
+ */
+ /* vfsp->VFS_DATA = NULL; */
+
+ /*
+ * No more vfsp's to hold onto.
+ */
+ mi->mi_vfsp = NULL;
+
+ if (error)
+ MARK_INT_FAIL(CODA_UMOUNT_STATS);
+ else
+ MARK_INT_SAT(CODA_UMOUNT_STATS);
+ return (error);
+ }
+ return (EINVAL);
}
/*
- * find root of cfs
+ * Find root of cfs.
*/
int
-coda_root(vfsp, flags, vpp, td)
- struct mount *vfsp;
- int flags;
- struct vnode **vpp;
- struct thread *td;
+coda_root(struct mount *vfsp, int flags, struct vnode **vpp,
+ struct thread *td)
{
- struct coda_mntinfo *mi = vftomi(vfsp);
- struct vnode **result;
- int error;
- struct proc *p = td->td_proc;
- CodaFid VFid;
- static const CodaFid invalfid = INVAL_FID;
-
- ENTRY;
- MARK_ENTRY(CODA_ROOT_STATS);
- result = NULL;
-
- if (vfsp == mi->mi_vfsp) {
- /*
- * Cache the root across calls. We only need to pass the request
- * on to Venus if the root vnode is the dummy we installed in
- * coda_omount() with all c_fid members zeroed.
- *
- * XXX In addition, we assume that the first call to coda_root()
- * is from vfs_omount()
- * (before the call to checkdirs()) and return the dummy root
- * node to avoid a deadlock. This bug is fixed in the Coda CVS
- * repository but not in any released versions as of 6 Mar 2003.
- */
- if (memcmp(&VTOC(mi->mi_rootvp)->c_fid, &invalfid,
- sizeof(CodaFid)) != 0 || mi->mi_started == 0)
- { /* Found valid root. */
- *vpp = mi->mi_rootvp;
- mi->mi_started = 1;
+ struct coda_mntinfo *mi = vftomi(vfsp);
+ struct vnode **result;
+ int error;
+ struct proc *p = td->td_proc;
+ CodaFid VFid;
+ static const CodaFid invalfid = INVAL_FID;
+
+ ENTRY;
+ MARK_ENTRY(CODA_ROOT_STATS);
+ result = NULL;
+ if (vfsp == mi->mi_vfsp) {
+ /*
+ * Cache the root across calls. We only need to pass the
+ * request on to Venus if the root vnode is the dummy we
+ * installed in coda_mount() with all c_fid members zeroed.
+ *
+ * XXX In addition, we assume that the first call to
+ * coda_root() is from vfs_mount() (before the call to
+ * checkdirs()) and return the dummy root node to avoid a
+ * deadlock. This bug is fixed in the Coda CVS repository
+ * but not in any released versions as of 6 Mar 2003.
+ */
+ if (memcmp(&VTOC(mi->mi_rootvp)->c_fid, &invalfid,
+ sizeof(CodaFid)) != 0 || mi->mi_started == 0) {
+ /*
+ * Found valid root.
+ */
+ *vpp = mi->mi_rootvp;
+ mi->mi_started = 1;
+
+ /*
+ * On Mach, this is vref. On FreeBSD, vref +
+ * vn_lock.
+ */
+ vref(*vpp);
+ vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
+ MARK_INT_SAT(CODA_ROOT_STATS);
+ return (0);
+ }
+ }
- /* On Mach, this is vref. On FreeBSD, vref + vn_lock. */
+ error = venus_root(vftomi(vfsp), td->td_ucred, p, &VFid);
+ if (!error) {
+ /*
+ * Save the new rootfid in the cnode, and rehash the cnode
+ * into the cnode hash with the new fid key.
+ */
+ coda_unsave(VTOC(mi->mi_rootvp));
+ VTOC(mi->mi_rootvp)->c_fid = VFid;
+ coda_save(VTOC(mi->mi_rootvp));
+ *vpp = mi->mi_rootvp;
vref(*vpp);
vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
MARK_INT_SAT(CODA_ROOT_STATS);
- return(0);
- }
- }
-
- error = venus_root(vftomi(vfsp), td->td_ucred, p, &VFid);
-
- if (!error) {
- /*
- * Save the new rootfid in the cnode, and rehash the cnode into the
- * cnode hash with the new fid key.
- */
- coda_unsave(VTOC(mi->mi_rootvp));
- VTOC(mi->mi_rootvp)->c_fid = VFid;
- coda_save(VTOC(mi->mi_rootvp));
-
- *vpp = mi->mi_rootvp;
- vref(*vpp);
- vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
-
- MARK_INT_SAT(CODA_ROOT_STATS);
- goto exit;
- } else if (error == ENODEV || error == EINTR) {
- /* Gross hack here! */
- /*
- * If Venus fails to respond to the CODA_ROOT call, coda_call returns
- * ENODEV. Return the uninitialized root vnode to allow vfs
- * operations such as unmount to continue. Without this hack,
- * there is no way to do an unmount if Venus dies before a
- * successful CODA_ROOT call is done. All vnode operations
- * will fail.
- */
- *vpp = mi->mi_rootvp;
- vref(*vpp);
- vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
-
- MARK_INT_FAIL(CODA_ROOT_STATS);
- error = 0;
- goto exit;
- } else {
- CODADEBUG( CODA_ROOT, myprintf(("error %d in CODA_ROOT\n", error)); );
- MARK_INT_FAIL(CODA_ROOT_STATS);
-
- goto exit;
- }
-
- exit:
- return(error);
+ } else if (error == ENODEV || error == EINTR) {
+ /*
+ * Gross hack here!
+ *
+ * If Venus fails to respond to the CODA_ROOT call, coda_call
+ * returns ENODEV. Return the uninitialized root vnode to
+ * allow vfs operations such as unmount to continue. Without
+ * this hack, there is no way to do an unmount if Venus dies
+ * before a successful CODA_ROOT call is done. All vnode
+ * operations will fail.
+ */
+ *vpp = mi->mi_rootvp;
+ vref(*vpp);
+ vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
+ MARK_INT_FAIL(CODA_ROOT_STATS);
+ error = 0;
+ } else {
+ CODADEBUG(CODA_ROOT, myprintf(("error %d in CODA_ROOT\n",
+ error)););
+ MARK_INT_FAIL(CODA_ROOT_STATS);
+ }
+ return (error);
}
/*
* Get filesystem statistics.
*/
int
-coda_statfs(vfsp, sbp, td)
- register struct mount *vfsp;
- struct statfs *sbp;
- struct thread *td;
+coda_statfs(struct mount *vfsp, struct statfs *sbp, struct thread *td)
{
- ENTRY;
- MARK_ENTRY(CODA_STATFS_STATS);
- if (!CODA_MOUNTED(vfsp)) {
- MARK_INT_FAIL(CODA_STATFS_STATS);
- return(EINVAL);
- }
-
- /* XXX - what to do about f_flags, others? --bnoble */
- /* Below This is what AFS does
- #define CODA_SFS_SIZ 0x895440
- */
- sbp->f_flags = 0;
- sbp->f_bsize = 8192; /* XXX */
- sbp->f_iosize = 8192; /* XXX */
-#define CODA_SFS_SIZ 0x8AB75D
- sbp->f_blocks = CODA_SFS_SIZ;
- sbp->f_bfree = CODA_SFS_SIZ;
- sbp->f_bavail = CODA_SFS_SIZ;
- sbp->f_files = CODA_SFS_SIZ;
- sbp->f_ffree = CODA_SFS_SIZ;
- MARK_INT_SAT(CODA_STATFS_STATS);
- return(0);
+
+ ENTRY;
+ MARK_ENTRY(CODA_STATFS_STATS);
+ if (!CODA_MOUNTED(vfsp)) {
+ MARK_INT_FAIL(CODA_STATFS_STATS);
+ return (EINVAL);
+ }
+
+ /*
+ * XXX - what to do about f_flags, others? --bnoble
+ *
+ * We just make up free space counts that are sufficiently large.
+ */
+ sbp->f_flags = 0;
+ sbp->f_bsize = 8192; /* XXX */
+ sbp->f_iosize = 8192; /* XXX */
+#define CODA_SFS_SIZ 0x8AB75D
+ sbp->f_blocks = CODA_SFS_SIZ;
+ sbp->f_bfree = CODA_SFS_SIZ;
+ sbp->f_bavail = CODA_SFS_SIZ;
+ sbp->f_files = CODA_SFS_SIZ;
+ sbp->f_ffree = CODA_SFS_SIZ;
+ MARK_INT_SAT(CODA_STATFS_STATS);
+ return (0);
}
/*
* Flush any pending I/O.
*/
int
-coda_sync(vfsp, waitfor, td)
- struct mount *vfsp;
- int waitfor;
- struct thread *td;
+coda_sync(struct mount *vfsp, int waitfor, struct thread *td)
{
- ENTRY;
- MARK_ENTRY(CODA_SYNC_STATS);
- MARK_INT_SAT(CODA_SYNC_STATS);
- return(0);
+
+ ENTRY;
+ MARK_ENTRY(CODA_SYNC_STATS);
+ MARK_INT_SAT(CODA_SYNC_STATS);
+ return (0);
}
-/*
- * fhtovp is now what vget used to be in 4.3-derived systems. For
- * some silly reason, vget is now keyed by a 32 bit ino_t, rather than
- * a type-specific fid.
+/*
+ * fhtovp is now what vget used to be in 4.3-derived systems. For some silly
+ * reason, vget is now keyed by a 32 bit ino_t, rather than a type-specific
+ * fid.
*
* XXX: coda_fhtovp is currently not hooked up, so no NFS export for Coda.
* We leave it here in the hopes that someone will find it someday and hook
@@ -402,54 +398,48 @@ coda_sync(vfsp, waitfor, td)
* vfs_fhtovp_t prototype.
*/
int
-coda_fhtovp(vfsp, fhp, nam, vpp, exflagsp, creadanonp)
- register struct mount *vfsp;
- struct fid *fhp;
- struct mbuf *nam;
- struct vnode **vpp;
- int *exflagsp;
- struct ucred **creadanonp;
+coda_fhtovp(struct mount *vfsp, struct fid *fhp, struct mbuf *nam,
+ struct vnode **vpp, int *exflagsp, struct ucred **creadanonp)
{
- struct cfid *cfid = (struct cfid *)fhp;
- struct cnode *cp = 0;
- int error;
- struct thread *td = curthread; /* XXX -mach */
- struct proc *p = td->td_proc;
- CodaFid VFid;
- int vtype;
-
- ENTRY;
-
- MARK_ENTRY(CODA_VGET_STATS);
- /* Check for vget of control object. */
- if (IS_CTL_FID(&cfid->cfid_fid)) {
- *vpp = coda_ctlvp;
- vref(coda_ctlvp);
- MARK_INT_SAT(CODA_VGET_STATS);
- return(0);
- }
-
- error = venus_fhtovp(vftomi(vfsp), &cfid->cfid_fid, td->td_ucred, p, &VFid, &vtype);
-
- if (error) {
- CODADEBUG(CODA_VGET, myprintf(("vget error %d\n",error));)
- *vpp = (struct vnode *)0;
- } else {
- CODADEBUG(CODA_VGET,
- myprintf(("vget: %s type %d result %d\n",
- coda_f2s(&VFid), vtype, error)); )
- cp = make_coda_node(&VFid, vfsp, vtype);
- *vpp = CTOV(cp);
- }
- return(error);
+ struct cfid *cfid = (struct cfid *)fhp;
+ struct cnode *cp = NULL;
+ int error;
+ struct thread *td = curthread; /* XXX -mach */
+ struct proc *p = td->td_proc;
+ CodaFid VFid;
+ int vtype;
+
+ ENTRY;
+ MARK_ENTRY(CODA_VGET_STATS);
+
+ /*
+ * Check for vget of control object.
+ */
+ if (IS_CTL_FID(&cfid->cfid_fid)) {
+ *vpp = coda_ctlvp;
+ vref(coda_ctlvp);
+ MARK_INT_SAT(CODA_VGET_STATS);
+ return (0);
+ }
+ error = venus_fhtovp(vftomi(vfsp), &cfid->cfid_fid, td->td_ucred, p,
+ &VFid, &vtype);
+ if (error) {
+ CODADEBUG(CODA_VGET, myprintf(("vget error %d\n",error)););
+ *vpp = NULL;
+ } else {
+ CODADEBUG(CODA_VGET, myprintf(("vget: %s type %d result "
+ "%d\n", coda_f2s(&VFid), vtype, error)););
+ cp = make_coda_node(&VFid, vfsp, vtype);
+ *vpp = CTOV(cp);
+ }
+ return (error);
}
struct vfsops coda_vfsops = {
- .vfs_mount = coda_mount,
- .vfs_root = coda_root,
- .vfs_statfs = coda_statfs,
- .vfs_sync = coda_sync,
- .vfs_unmount = coda_unmount,
+ .vfs_mount = coda_mount,
+ .vfs_root = coda_root,
+ .vfs_statfs = coda_statfs,
+ .vfs_sync = coda_sync,
+ .vfs_unmount = coda_unmount,
};
-
VFS_SET(coda_vfsops, coda, VFCF_NETWORK);
diff --git a/sys/fs/coda/coda_vfsops.h b/sys/fs/coda/coda_vfsops.h
index b661e0a..b51f4bc 100644
--- a/sys/fs/coda/coda_vfsops.h
+++ b/sys/fs/coda/coda_vfsops.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,44 +14,47 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
- * @(#) src/sys/cfs/coda_vfsops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
+ *
+ * @(#) src/sys/cfs/coda_vfsops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
*/
+#ifndef _CODA_VFSOPS_H_
+#define _CODA_VFSOPS_H_
+
/*
* cfid structure:
- * This overlays the fid structure (see vfs.h)
- * Only used below and will probably go away.
+ *
+ * This overlays the fid structure (see vfs.h); only used below and will
+ * probably go away.
*/
-
struct cfid {
- u_short cfid_len;
- u_short padding;
- CodaFid cfid_fid;
+ u_short cfid_len;
+ u_short padding;
+ CodaFid cfid_fid;
};
struct mbuf;
struct mount;
-
-int coda_vfsopstats_init(void);
-int coda_fhtovp(struct mount *, struct fid *, struct mbuf *, struct vnode **,
- int *, struct ucred **);
+int coda_vfsopstats_init(void);
+int coda_fhtovp(struct mount *, struct fid *, struct mbuf *,
+ struct vnode **, int *, struct ucred **);
vfs_mount_t coda_mount;
vfs_unmount_t coda_unmount;
vfs_root_t coda_root;
vfs_statfs_t coda_statfs;
vfs_sync_t coda_sync;
+
+#endif /* !_CODA_VFSOPS_H_ */
diff --git a/sys/fs/coda/coda_vnops.c b/sys/fs/coda/coda_vnops.c
index 3206268..f55a808 100644
--- a/sys/fs/coda/coda_vnops.c
+++ b/sys/fs/coda/coda_vnops.c
@@ -1,10 +1,10 @@
/*-
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -13,21 +13,21 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_vnops.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1990 Carnegie-Mellon University
* Copyright (c) 1989 Carnegie-Mellon University
@@ -38,7 +38,7 @@
/*
* This code was written for the Coda filesystem at Carnegie Mellon
* University. Contributers include David Steere, James Kistler, and
- * M. Satyanarayanan.
+ * M. Satyanarayanan.
*/
#include <sys/cdefs.h>
@@ -73,75 +73,80 @@ __FBSDID("$FreeBSD$");
#include <fs/coda/coda_namecache.h>
#include <fs/coda/coda_pioctl.h>
-/*
+/*
* These flags select various performance enhancements.
*/
-int coda_attr_cache = 1; /* Set to cache attributes in the kernel */
-int coda_symlink_cache = 1; /* Set to cache symbolic link information */
-int coda_access_cache = 1; /* Set to handle some access checks directly */
-
-/* structure to keep track of vfs calls */
+static int coda_attr_cache = 1; /* Set to cache attributes. */
+static int coda_symlink_cache = 1; /* Set to cache symbolic links. */
+static int coda_access_cache = 1; /* Set to cache some access checks. */
-struct coda_op_stats coda_vnodeopstats[CODA_VNODEOPS_SIZE];
+/*
+ * Structure to keep track of vfs calls.
+ */
+static struct coda_op_stats coda_vnodeopstats[CODA_VNODEOPS_SIZE];
-#define MARK_ENTRY(op) (coda_vnodeopstats[op].entries++)
-#define MARK_INT_SAT(op) (coda_vnodeopstats[op].sat_intrn++)
-#define MARK_INT_FAIL(op) (coda_vnodeopstats[op].unsat_intrn++)
-#define MARK_INT_GEN(op) (coda_vnodeopstats[op].gen_intrn++)
+#define MARK_ENTRY(op) (coda_vnodeopstats[op].entries++)
+#define MARK_INT_SAT(op) (coda_vnodeopstats[op].sat_intrn++)
+#define MARK_INT_FAIL(op) (coda_vnodeopstats[op].unsat_intrn++)
+#define MARK_INT_GEN(op) (coda_vnodeopstats[op].gen_intrn++)
-/* What we are delaying for in printf */
-int coda_printf_delay = 0; /* in microseconds */
+/*
+ * What we are delaying for in printf.
+ */
+int coda_printf_delay = 0; /* In microseconds */
int coda_vnop_print_entry = 0;
static int coda_lockdebug = 0;
/*
* Some FreeBSD details:
- *
- * codadev_modevent is called at boot time or module load time.
+ *
+ * codadev_modevent is called at boot time or module load time.
*/
+#define ENTRY do { \
+ if (coda_vnop_print_entry) \
+ myprintf(("Entered %s\n", __func__)); \
+} while (0)
-#define ENTRY if(coda_vnop_print_entry) myprintf(("Entered %s\n",__func__))
-
-/* Definition of the vnode operation vector */
-
+/*
+ * Definition of the vnode operation vector.
+ */
struct vop_vector coda_vnodeops = {
- .vop_default = &default_vnodeops,
- .vop_lookup = coda_lookup, /* lookup */
- .vop_create = coda_create, /* create */
- .vop_open = coda_open, /* open */
- .vop_close = coda_close, /* close */
- .vop_access = coda_access, /* access */
- .vop_getattr = coda_getattr, /* getattr */
- .vop_setattr = coda_setattr, /* setattr */
- .vop_read = coda_read, /* read */
- .vop_write = coda_write, /* write */
- .vop_ioctl = coda_ioctl, /* ioctl */
- .vop_fsync = coda_fsync, /* fsync */
- .vop_remove = coda_remove, /* remove */
- .vop_link = coda_link, /* link */
- .vop_rename = coda_rename, /* rename */
- .vop_mkdir = coda_mkdir, /* mkdir */
- .vop_rmdir = coda_rmdir, /* rmdir */
- .vop_symlink = coda_symlink, /* symlink */
- .vop_readdir = coda_readdir, /* readdir */
- .vop_readlink = coda_readlink, /* readlink */
- .vop_inactive = coda_inactive, /* inactive */
- .vop_reclaim = coda_reclaim, /* reclaim */
- .vop_lock1 = coda_lock, /* lock */
- .vop_unlock = coda_unlock, /* unlock */
- .vop_bmap = VOP_EOPNOTSUPP, /* bmap */
- .vop_print = VOP_NULL, /* print */
- .vop_islocked = coda_islocked, /* islocked */
- .vop_pathconf = coda_pathconf, /* pathconf */
- .vop_poll = vop_stdpoll,
- .vop_getpages = vop_stdgetpages, /* pager intf.*/
- .vop_putpages = vop_stdputpages, /* pager intf.*/
- .vop_getwritemount = vop_stdgetwritemount,
-
+ .vop_default = &default_vnodeops,
+ .vop_lookup = coda_lookup, /* lookup */
+ .vop_create = coda_create, /* create */
+ .vop_open = coda_open, /* open */
+ .vop_close = coda_close, /* close */
+ .vop_access = coda_access, /* access */
+ .vop_getattr = coda_getattr, /* getattr */
+ .vop_setattr = coda_setattr, /* setattr */
+ .vop_read = coda_read, /* read */
+ .vop_write = coda_write, /* write */
+ .vop_ioctl = coda_ioctl, /* ioctl */
+ .vop_fsync = coda_fsync, /* fsync */
+ .vop_remove = coda_remove, /* remove */
+ .vop_link = coda_link, /* link */
+ .vop_rename = coda_rename, /* rename */
+ .vop_mkdir = coda_mkdir, /* mkdir */
+ .vop_rmdir = coda_rmdir, /* rmdir */
+ .vop_symlink = coda_symlink, /* symlink */
+ .vop_readdir = coda_readdir, /* readdir */
+ .vop_readlink = coda_readlink, /* readlink */
+ .vop_inactive = coda_inactive, /* inactive */
+ .vop_reclaim = coda_reclaim, /* reclaim */
+ .vop_lock1 = coda_lock, /* lock */
+ .vop_unlock = coda_unlock, /* unlock */
+ .vop_bmap = VOP_EOPNOTSUPP, /* bmap */
+ .vop_print = VOP_NULL, /* print */
+ .vop_islocked = coda_islocked, /* islocked */
+ .vop_pathconf = coda_pathconf, /* pathconf */
+ .vop_poll = vop_stdpoll,
+ .vop_getpages = vop_stdgetpages, /* pager intf.*/
+ .vop_putpages = vop_stdputpages, /* pager intf.*/
+ .vop_getwritemount = vop_stdgetwritemount,
#if 0
- missing
- .vop_cachedlookup = ufs_lookup,
- .vop_whiteout = ufs_whiteout,
+ /* missing */
+ .vop_cachedlookup = ufs_lookup,
+ .vop_whiteout = ufs_whiteout,
#endif
};
@@ -151,91 +156,97 @@ static void coda_print_vattr(struct vattr *attr);
int
coda_vnodeopstats_init(void)
{
- register int i;
-
- for(i=0;i<CODA_VNODEOPS_SIZE;i++) {
+ int i;
+
+ for(i=0; i<CODA_VNODEOPS_SIZE; i++) {
coda_vnodeopstats[i].opcode = i;
coda_vnodeopstats[i].entries = 0;
coda_vnodeopstats[i].sat_intrn = 0;
coda_vnodeopstats[i].unsat_intrn = 0;
coda_vnodeopstats[i].gen_intrn = 0;
}
- return 0;
+ return (0);
}
-
-/*
- * coda_open calls Venus which returns an open file descriptor the cache
- * file holding the data. We get the vnode while we are still in the
- * context of the venus process in coda_psdev.c. This vnode is then
- * passed back to the caller and opened.
+
+/*
+ * coda_open calls Venus which returns an open file descriptor the cache file
+ * holding the data. We get the vnode while we are still in the context of
+ * the venus process in coda_psdev.c. This vnode is then passed back to the
+ * caller and opened.
*/
int
coda_open(struct vop_open_args *ap)
{
- /*
- * FreeBSD can pass the O_EXCL flag in mode, even though the check
- * has already happened. Venus defensively assumes that if open
- * is passed the EXCL, it must be a bug. We strip the flag here.
- */
-/* true args */
- register struct vnode **vpp = &(ap->a_vp);
- struct cnode *cp = VTOC(*vpp);
- int flag = ap->a_mode & (~O_EXCL);
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
- struct vnode *vp;
-
- MARK_ENTRY(CODA_OPEN_STATS);
-
- /* Check for open of control file. */
- if (IS_CTL_VP(*vpp)) {
- /* XXX */
- /* if (WRITEABLE(flag)) */
- if (flag & (FWRITE | O_TRUNC | O_CREAT | O_EXCL)) {
- MARK_INT_FAIL(CODA_OPEN_STATS);
- return(EACCES);
+
+ /*
+ * FreeBSD can pass the O_EXCL flag in mode, even though the check
+ * has already happened. Venus defensively assumes that if open is
+ * passed the EXCL, it must be a bug. We strip the flag here.
+ */
+ /* true args */
+ struct vnode **vpp = &(ap->a_vp);
+ struct cnode *cp = VTOC(*vpp);
+ int flag = ap->a_mode & (~O_EXCL);
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ int error;
+ struct vnode *vp;
+
+ MARK_ENTRY(CODA_OPEN_STATS);
+
+ /*
+ * Check for open of control file.
+ */
+ if (IS_CTL_VP(*vpp)) {
+ /* XXX */
+ /* if (WRITEABLE(flag)) */
+ if (flag & (FWRITE | O_TRUNC | O_CREAT | O_EXCL)) {
+ MARK_INT_FAIL(CODA_OPEN_STATS);
+ return (EACCES);
+ }
+ MARK_INT_SAT(CODA_OPEN_STATS);
+ return (0);
}
- MARK_INT_SAT(CODA_OPEN_STATS);
- return(0);
- }
+ error = venus_open(vtomi((*vpp)), &cp->c_fid, flag, cred,
+ td->td_proc, &vp);
+ if (error)
+ return (error);
+ CODADEBUG(CODA_OPEN, myprintf(("open: vp %p result %d\n", vp,
+ error)););
- error = venus_open(vtomi((*vpp)), &cp->c_fid, flag, cred, td->td_proc, &vp);
- if (error)
- return (error);
+ /*
+ * Save the vnode pointer for the cache file.
+ */
+ if (cp->c_ovp == NULL) {
+ cp->c_ovp = vp;
+ } else {
+ if (cp->c_ovp != vp)
+ panic("coda_open: cp->c_ovp != ITOV(ip)");
+ }
+ cp->c_ocount++;
+
+ /*
+ * Flush the attribute cached if writing the file.
+ */
+ if (flag & FWRITE) {
+ cp->c_owrite++;
+ cp->c_flags &= ~C_VATTR;
+ }
- CODADEBUG( CODA_OPEN,myprintf(("open: vp %p result %d\n", vp, error));)
-
- /* Save the vnode pointer for the cache file. */
- if (cp->c_ovp == NULL) {
- cp->c_ovp = vp;
- } else {
- if (cp->c_ovp != vp)
- panic("coda_open: cp->c_ovp != ITOV(ip)");
- }
- cp->c_ocount++;
-
- /* Flush the attribute cached if writing the file. */
- if (flag & FWRITE) {
- cp->c_owrite++;
- cp->c_flags &= ~C_VATTR;
- }
-
- /* Open the cache file. */
- vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
- error = VOP_OPEN(vp, flag, cred, td, NULL);
- if (error) {
- VOP_UNLOCK(vp, 0);
- printf("coda_open: VOP_OPEN on container failed %d\n", error);
- return (error);
- } else {
+ /*
+ * Open the cache file.
+ */
+ vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
+ error = VOP_OPEN(vp, flag, cred, td, NULL);
+ if (error) {
+ VOP_UNLOCK(vp, 0);
+ printf("coda_open: VOP_OPEN on container failed %d\n", error);
+ return (error);
+ }
(*vpp)->v_object = vp->v_object;
- }
- VOP_UNLOCK(vp, 0);
-/* grab (above) does this when it calls newvnode unless it's in the cache*/
-
- return(error);
+ VOP_UNLOCK(vp, 0);
+ return (0);
}
/*
@@ -244,1439 +255,1514 @@ coda_open(struct vop_open_args *ap)
int
coda_close(struct vop_close_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- int flag = ap->a_fflag;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
-
- MARK_ENTRY(CODA_CLOSE_STATS);
-
- /* Check for close of control file. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_SAT(CODA_CLOSE_STATS);
- return(0);
- }
-
- if (cp->c_ovp) {
- vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
- VOP_CLOSE(cp->c_ovp, flag, cred, td); /* Do errors matter here? */
- vput(cp->c_ovp);
- }
-#ifdef CODA_VERBOSE
- else printf("coda_close: NO container vp %p/cp %p\n", vp, cp);
-#endif
-
- if (--cp->c_ocount == 0)
- cp->c_ovp = NULL;
-
- if (flag & FWRITE) /* file was opened for write */
- --cp->c_owrite;
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ int flag = ap->a_fflag;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ int error;
- if (!IS_UNMOUNTING(cp))
- error = venus_close(vtomi(vp), &cp->c_fid, flag, cred, td->td_proc);
- else error = ENODEV;
+ MARK_ENTRY(CODA_CLOSE_STATS);
- CODADEBUG(CODA_CLOSE, myprintf(("close: result %d\n",error)); )
- return(error);
+ /*
+ * Check for close of control file.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_SAT(CODA_CLOSE_STATS);
+ return (0);
+ }
+ if (cp->c_ovp) {
+ vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
+ /* Do errors matter here? */
+ VOP_CLOSE(cp->c_ovp, flag, cred, td);
+ vput(cp->c_ovp);
+ }
+#ifdef CODA_VERBOSE
+ else
+ printf("coda_close: NO container vp %p/cp %p\n", vp, cp);
+#endif
+ if (--cp->c_ocount == 0)
+ cp->c_ovp = NULL;
+
+ /*
+ * File was opened for write.
+ */
+ if (flag & FWRITE)
+ --cp->c_owrite;
+ if (!IS_UNMOUNTING(cp))
+ error = venus_close(vtomi(vp), &cp->c_fid, flag, cred,
+ td->td_proc);
+ else
+ error = ENODEV;
+ CODADEBUG(CODA_CLOSE, myprintf(("close: result %d\n",error)););
+ return (error);
}
int
coda_read(struct vop_read_args *ap)
{
- ENTRY;
- return(coda_rdwr(ap->a_vp, ap->a_uio, UIO_READ,
- ap->a_ioflag, ap->a_cred, ap->a_uio->uio_td));
+ ENTRY;
+ return (coda_rdwr(ap->a_vp, ap->a_uio, UIO_READ, ap->a_ioflag,
+ ap->a_cred, ap->a_uio->uio_td));
}
int
coda_write(struct vop_write_args *ap)
{
- ENTRY;
- return(coda_rdwr(ap->a_vp, ap->a_uio, UIO_WRITE,
- ap->a_ioflag, ap->a_cred, ap->a_uio->uio_td));
+ ENTRY;
+ return (coda_rdwr(ap->a_vp, ap->a_uio, UIO_WRITE, ap->a_ioflag,
+ ap->a_cred, ap->a_uio->uio_td));
}
int
coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw, int ioflag,
struct ucred *cred, struct thread *td)
-{
-/* upcall decl */
- /* NOTE: container file operation!!! */
-/* locals */
- struct cnode *cp = VTOC(vp);
- struct vnode *cfvp = cp->c_ovp;
- int opened_internally = 0;
- int error = 0;
-
- MARK_ENTRY(CODA_RDWR_STATS);
-
- CODADEBUG(CODA_RDWR, myprintf(("coda_rdwr(%d, %p, %d, %lld, %d)\n", rw,
- (void *)uiop->uio_iov->iov_base, uiop->uio_resid,
- (long long)uiop->uio_offset, uiop->uio_segflg)); )
-
- /* Check for rdwr of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_RDWR_STATS);
- return(EINVAL);
- }
-
- /*
- * If file is not already open this must be a page {read,write} request
- * and we should open it internally.
- */
- if (cfvp == NULL) {
- opened_internally = 1;
- MARK_INT_GEN(CODA_OPEN_STATS);
- error = VOP_OPEN(vp, (rw == UIO_READ ? FREAD : FWRITE), cred, td, NULL);
+{
+ /* upcall decl */
+ /* NOTE: container file operation!!! */
+ /* locals */
+ struct cnode *cp = VTOC(vp);
+ struct vnode *cfvp = cp->c_ovp;
+ int opened_internally = 0;
+ int error = 0;
+
+ MARK_ENTRY(CODA_RDWR_STATS);
+ CODADEBUG(CODA_RDWR, myprintf(("coda_rdwr(%d, %p, %d, %lld, %d)\n",
+ rw, (void *)uiop->uio_iov->iov_base, uiop->uio_resid,
+ (long long)uiop->uio_offset, uiop->uio_segflg)););
+
+ /*
+ * Check for rdwr of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_RDWR_STATS);
+ return (EINVAL);
+ }
+
+ /*
+ * If file is not already open this must be a page {read,write}
+ * request and we should open it internally.
+ */
+ if (cfvp == NULL) {
+ opened_internally = 1;
+ MARK_INT_GEN(CODA_OPEN_STATS);
+ error = VOP_OPEN(vp, (rw == UIO_READ ? FREAD : FWRITE), cred,
+ td, NULL);
#ifdef CODA_VERBOSE
- printf("coda_rdwr: Internally Opening %p\n", vp);
+ printf("coda_rdwr: Internally Opening %p\n", vp);
#endif
- if (error) {
- printf("coda_rdwr: VOP_OPEN on container failed %d\n", error);
- return (error);
+ if (error) {
+ printf("coda_rdwr: VOP_OPEN on container failed "
+ "%d\n", error);
+ return (error);
+ }
+ cfvp = cp->c_ovp;
}
- cfvp = cp->c_ovp;
- }
-
- /* Have UFS handle the call. */
- CODADEBUG(CODA_RDWR, myprintf(("indirect rdwr: fid = %s, refcnt = %d\n",
- coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount)); )
- vn_lock(cfvp, LK_EXCLUSIVE | LK_RETRY);
- if (rw == UIO_READ) {
- error = VOP_READ(cfvp, uiop, ioflag, cred);
- } else {
- error = VOP_WRITE(cfvp, uiop, ioflag, cred);
- /* ufs_write updates the vnode_pager_setsize for the vnode/object */
-
- { struct vattr attr;
-
- if (VOP_GETATTR(cfvp, &attr, cred, td) == 0) {
- vnode_pager_setsize(vp, attr.va_size);
- }
+
+ /*
+ * Have UFS handle the call.
+ */
+ CODADEBUG(CODA_RDWR, myprintf(("indirect rdwr: fid = %s, refcnt = "
+ "%d\n", coda_f2s(&cp->c_fid), CTOV(cp)->v_usecount)););
+ vn_lock(cfvp, LK_EXCLUSIVE | LK_RETRY);
+ if (rw == UIO_READ) {
+ error = VOP_READ(cfvp, uiop, ioflag, cred);
+ } else {
+ error = VOP_WRITE(cfvp, uiop, ioflag, cred);
+ /*
+ * ufs_write updates the vnode_pager_setsize for the
+ * vnode/object.
+ *
+ * XXX: Since we now share vm objects between layers, this is
+ * probably unnecessary.
+ */
+ {
+ struct vattr attr;
+ if (VOP_GETATTR(cfvp, &attr, cred, td) == 0)
+ vnode_pager_setsize(vp, attr.va_size);
+ }
+ }
+ VOP_UNLOCK(cfvp, 0);
+ if (error)
+ MARK_INT_FAIL(CODA_RDWR_STATS);
+ else
+ MARK_INT_SAT(CODA_RDWR_STATS);
+
+ /*
+ * Do an internal close if necessary.
+ */
+ if (opened_internally) {
+ MARK_INT_GEN(CODA_CLOSE_STATS);
+ (void)VOP_CLOSE(vp, (rw == UIO_READ ? FREAD : FWRITE), cred,
+ td);
}
- }
- VOP_UNLOCK(cfvp, 0);
-
- if (error)
- MARK_INT_FAIL(CODA_RDWR_STATS);
- else
- MARK_INT_SAT(CODA_RDWR_STATS);
-
- /* Do an internal close if necessary. */
- if (opened_internally) {
- MARK_INT_GEN(CODA_CLOSE_STATS);
- (void)VOP_CLOSE(vp, (rw == UIO_READ ? FREAD : FWRITE), cred, td);
- }
-
- /* Invalidate cached attributes if writing. */
- if (rw == UIO_WRITE)
- cp->c_flags &= ~C_VATTR;
- return(error);
+
+ /*
+ * Invalidate cached attributes if writing.
+ */
+ if (rw == UIO_WRITE)
+ cp->c_flags &= ~C_VATTR;
+ return (error);
}
int
coda_ioctl(struct vop_ioctl_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- int com = ap->a_command;
- caddr_t data = ap->a_data;
- int flag = ap->a_fflag;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
- struct vnode *tvp;
- struct nameidata ndp;
- struct PioctlData *iap = (struct PioctlData *)data;
-
- MARK_ENTRY(CODA_IOCTL_STATS);
-
- CODADEBUG(CODA_IOCTL, myprintf(("in coda_ioctl on %s\n", iap->path));)
-
- /* Don't check for operation on a dying object, for ctlvp it
- shouldn't matter */
-
- /* Must be control object to succeed. */
- if (!IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_IOCTL_STATS);
- CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: vp != ctlvp"));)
- return (EOPNOTSUPP);
- }
- /* Look up the pathname. */
-
- /* Should we use the name cache here? It would get it from
- lookupname sooner or later anyway, right? */
-
- NDINIT(&ndp, LOOKUP, (iap->follow ? FOLLOW : NOFOLLOW), UIO_USERSPACE, iap->path, td);
- error = namei(&ndp);
- tvp = ndp.ni_vp;
-
- if (error) {
- MARK_INT_FAIL(CODA_IOCTL_STATS);
- CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: lookup returns %d\n",
- error));)
- return(error);
- }
-
- /*
- * Make sure this is a coda style cnode, but it may be a
- * different vfsp
- */
- if (tvp->v_op != &coda_vnodeops) {
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ int com = ap->a_command;
+ caddr_t data = ap->a_data;
+ int flag = ap->a_fflag;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ int error;
+ struct vnode *tvp;
+ struct nameidata ndp;
+ struct PioctlData *iap = (struct PioctlData *)data;
+
+ MARK_ENTRY(CODA_IOCTL_STATS);
+ CODADEBUG(CODA_IOCTL, myprintf(("in coda_ioctl on %s\n", iap->path)););
+
+ /*
+ * Don't check for operation on a dying object, for ctlvp it
+ * shouldn't matter.
+ *
+ * Must be control object to succeed.
+ */
+ if (!IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_IOCTL_STATS);
+ CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: vp != "
+ "ctlvp")););
+ return (EOPNOTSUPP);
+ }
+
+ /*
+ * Look up the pathname.
+ *
+ * Should we use the name cache here? It would get it from lookupname
+ * sooner or later anyway, right?
+ */
+ NDINIT(&ndp, LOOKUP, (iap->follow ? FOLLOW : NOFOLLOW),
+ UIO_USERSPACE, iap->path, td);
+ error = namei(&ndp);
+ tvp = ndp.ni_vp;
+ if (error) {
+ MARK_INT_FAIL(CODA_IOCTL_STATS);
+ CODADEBUG(CODA_IOCTL, myprintf(("coda_ioctl error: lookup "
+ "returns %d\n", error)););
+ return (error);
+ }
+
+ /*
+ * Make sure this is a coda style cnode, but it may be a different
+ * vfsp.
+ */
+ if (tvp->v_op != &coda_vnodeops) {
+ vrele(tvp);
+ NDFREE(&ndp, NDF_ONLY_PNBUF);
+ MARK_INT_FAIL(CODA_IOCTL_STATS);
+ CODADEBUG(CODA_IOCTL,
+ myprintf(("coda_ioctl error: %s not a coda object\n",
+ iap->path)););
+ return (EINVAL);
+ }
+ if (iap->vi.in_size > VC_MAXDATASIZE) {
+ NDFREE(&ndp, 0);
+ return (EINVAL);
+ }
+ error = venus_ioctl(vtomi(tvp), &((VTOC(tvp))->c_fid), com, flag,
+ data, cred, td->td_proc);
+ if (error)
+ MARK_INT_FAIL(CODA_IOCTL_STATS);
+ else
+ CODADEBUG(CODA_IOCTL, myprintf(("Ioctl returns %d \n",
+ error)););
vrele(tvp);
NDFREE(&ndp, NDF_ONLY_PNBUF);
- MARK_INT_FAIL(CODA_IOCTL_STATS);
- CODADEBUG(CODA_IOCTL,
- myprintf(("coda_ioctl error: %s not a coda object\n",
- iap->path));)
- return(EINVAL);
- }
-
- if (iap->vi.in_size > VC_MAXDATASIZE) {
- NDFREE(&ndp, 0);
- return(EINVAL);
- }
- error = venus_ioctl(vtomi(tvp), &((VTOC(tvp))->c_fid), com, flag, data, cred, td->td_proc);
-
- if (error)
- MARK_INT_FAIL(CODA_IOCTL_STATS);
- else
- CODADEBUG(CODA_IOCTL, myprintf(("Ioctl returns %d \n", error)); )
-
- vrele(tvp);
- NDFREE(&ndp, NDF_ONLY_PNBUF);
- return(error);
+ return (error);
}
/*
- * To reduce the cost of a user-level venus;we cache attributes in
- * the kernel. Each cnode has storage allocated for an attribute. If
- * c_vattr is valid, return a reference to it. Otherwise, get the
- * attributes from venus and store them in the cnode. There is some
- * question if this method is a security leak. But I think that in
- * order to make this call, the user must have done a lookup and
- * opened the file, and therefore should already have access.
+ * To reduce the cost of a user-level venus;we cache attributes in the
+ * kernel. Each cnode has storage allocated for an attribute. If c_vattr is
+ * valid, return a reference to it. Otherwise, get the attributes from venus
+ * and store them in the cnode. There is some question if this method is a
+ * security leak. But I think that in order to make this call, the user must
+ * have done a lookup and opened the file, and therefore should already have
+ * access.
*/
int
coda_getattr(struct vop_getattr_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- struct vattr *vap = ap->a_vap;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
-
- MARK_ENTRY(CODA_GETATTR_STATS);
-
- if (IS_UNMOUNTING(cp))
- return ENODEV;
-
- /* Check for getattr of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_GETATTR_STATS);
- return(ENOENT);
- }
-
- /* Check to see if the attributes have already been cached */
- if (VALID_VATTR(cp)) {
- CODADEBUG(CODA_GETATTR, { myprintf(("attr cache hit: %s\n",
- coda_f2s(&cp->c_fid)));});
- CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR))
- coda_print_vattr(&cp->c_vattr); );
-
- *vap = cp->c_vattr;
- MARK_INT_SAT(CODA_GETATTR_STATS);
- return(0);
- }
-
- error = venus_getattr(vtomi(vp), &cp->c_fid, cred, td->td_proc, vap);
-
- if (!error) {
- CODADEBUG(CODA_GETATTR, myprintf(("getattr miss %s: result %d\n",
- coda_f2s(&cp->c_fid), error)); )
-
- CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR))
- coda_print_vattr(vap); );
-
- { int size = vap->va_size;
- struct vnode *convp = cp->c_ovp;
- if (convp != (struct vnode *)0) {
- vnode_pager_setsize(convp, size);
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct vattr *vap = ap->a_vap;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ struct vnode *convp;
+ int error, size;
+
+ MARK_ENTRY(CODA_GETATTR_STATS);
+ if (IS_UNMOUNTING(cp))
+ return (ENODEV);
+
+ /*
+ * Check for getattr of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_GETATTR_STATS);
+ return (ENOENT);
+ }
+
+ /*
+ * Check to see if the attributes have already been cached.
+ */
+ if (VALID_VATTR(cp)) {
+ CODADEBUG(CODA_GETATTR, myprintf(("attr cache hit: %s\n",
+ coda_f2s(&cp->c_fid))););
+ CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR))
+ coda_print_vattr(&cp->c_vattr););
+ *vap = cp->c_vattr;
+ MARK_INT_SAT(CODA_GETATTR_STATS);
+ return (0);
}
- }
- /* If not open for write, store attributes in cnode */
- if ((cp->c_owrite == 0) && (coda_attr_cache)) {
- cp->c_vattr = *vap;
- cp->c_flags |= C_VATTR;
+ error = venus_getattr(vtomi(vp), &cp->c_fid, cred, td->td_proc, vap);
+ if (!error) {
+ CODADEBUG(CODA_GETATTR, myprintf(("getattr miss %s: result "
+ "%d\n", coda_f2s(&cp->c_fid), error)););
+ CODADEBUG(CODA_GETATTR, if (!(codadebug & ~CODA_GETATTR))
+ coda_print_vattr(vap););
+
+ /*
+ * XXX: Since we now share vm objects between layers, this is
+ * probably unnecessary.
+ */
+ size = vap->va_size;
+ convp = cp->c_ovp;
+ if (convp != NULL)
+ vnode_pager_setsize(convp, size);
+
+ /*
+ * If not open for write, store attributes in cnode.
+ */
+ if ((cp->c_owrite == 0) && (coda_attr_cache)) {
+ cp->c_vattr = *vap;
+ cp->c_flags |= C_VATTR;
+ }
}
-
- }
- return(error);
+ return (error);
}
int
coda_setattr(struct vop_setattr_args *ap)
{
-/* true args */
- register struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- register struct vattr *vap = ap->a_vap;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
-
- MARK_ENTRY(CODA_SETATTR_STATS);
-
- /* Check for setattr of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_SETATTR_STATS);
- return(ENOENT);
- }
-
- if (codadebug & CODADBGMSK(CODA_SETATTR)) {
- coda_print_vattr(vap);
- }
- error = venus_setattr(vtomi(vp), &cp->c_fid, vap, cred, td->td_proc);
-
- if (!error)
- cp->c_flags &= ~C_VATTR;
-
- { int size = vap->va_size;
- struct vnode *convp = cp->c_ovp;
- if (size != VNOVAL && convp != (struct vnode *)0) {
- vnode_pager_setsize(convp, size);
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct vattr *vap = ap->a_vap;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ struct vnode *convp;
+ int error, size;
+
+ MARK_ENTRY(CODA_SETATTR_STATS);
+
+ /*
+ * Check for setattr of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_SETATTR_STATS);
+ return (ENOENT);
}
- }
- CODADEBUG(CODA_SETATTR, myprintf(("setattr %d\n", error)); )
- return(error);
+ if (codadebug & CODADBGMSK(CODA_SETATTR))
+ coda_print_vattr(vap);
+ error = venus_setattr(vtomi(vp), &cp->c_fid, vap, cred, td->td_proc);
+ if (!error)
+ cp->c_flags &= ~C_VATTR;
+
+ /*
+ * XXX: Since we now share vm objects between layers, this is
+ * probably unnecessary.
+ *
+ * XXX: Shouldn't we only be doing this "set" if C_VATTR remains
+ * valid after venus_setattr()?
+ */
+ size = vap->va_size;
+ convp = cp->c_ovp;
+ if (size != VNOVAL && convp != NULL)
+ vnode_pager_setsize(convp, size);
+ CODADEBUG(CODA_SETATTR, myprintf(("setattr %d\n", error)););
+ return (error);
}
int
coda_access(struct vop_access_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- int mode = ap->a_mode;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_td;
-/* locals */
- int error;
-
- MARK_ENTRY(CODA_ACCESS_STATS);
-
- /* Check for access of control object. Only read access is
- allowed on it. */
- if (IS_CTL_VP(vp)) {
- /* bogus hack - all will be marked as successes */
- MARK_INT_SAT(CODA_ACCESS_STATS);
- return(((mode & VREAD) && !(mode & (VWRITE | VEXEC)))
- ? 0 : EACCES);
- }
-
- /*
- * if the file is a directory, and we are checking exec (eg lookup)
- * access, and the file is in the namecache, then the user must have
- * lookup access to it.
- */
- if (coda_access_cache) {
- if ((vp->v_type == VDIR) && (mode & VEXEC)) {
- if (coda_nc_lookup(cp, ".", 1, cred)) {
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ int mode = ap->a_mode;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_td;
+ /* locals */
+ int error;
+
+ MARK_ENTRY(CODA_ACCESS_STATS);
+
+ /*
+ * Check for access of control object. Only read access is allowed
+ * on it.
+ */
+ if (IS_CTL_VP(vp)) {
+ /*
+ * Bogus hack - all will be marked as successes.
+ */
MARK_INT_SAT(CODA_ACCESS_STATS);
- return(0); /* it was in the cache */
- }
+ return (((mode & VREAD) && !(mode & (VWRITE | VEXEC)))
+ ? 0 : EACCES);
}
- }
-
- error = venus_access(vtomi(vp), &cp->c_fid, mode, cred, td->td_proc);
- return(error);
+ /*
+ * if the file is a directory, and we are checking exec (eg lookup)
+ * access, and the file is in the namecache, then the user must have
+ * lookup access to it.
+ */
+ if (coda_access_cache) {
+ if ((vp->v_type == VDIR) && (mode & VEXEC)) {
+ if (coda_nc_lookup(cp, ".", 1, cred)) {
+ MARK_INT_SAT(CODA_ACCESS_STATS);
+ return (0);
+ }
+ }
+ }
+ error = venus_access(vtomi(vp), &cp->c_fid, mode, cred, td->td_proc);
+ return (error);
}
int
coda_readlink(struct vop_readlink_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- struct uio *uiop = ap->a_uio;
- struct ucred *cred = ap->a_cred;
- struct thread *td = ap->a_uio->uio_td;
-/* locals */
- int error;
- char *str;
- int len;
-
- MARK_ENTRY(CODA_READLINK_STATS);
-
- /* Check for readlink of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_READLINK_STATS);
- return(ENOENT);
- }
-
- if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) { /* symlink was cached */
- uiop->uio_rw = UIO_READ;
- error = uiomove(cp->c_symlink, (int)cp->c_symlen, uiop);
- if (error)
- MARK_INT_FAIL(CODA_READLINK_STATS);
- else
- MARK_INT_SAT(CODA_READLINK_STATS);
- return(error);
- }
-
- error = venus_readlink(vtomi(vp), &cp->c_fid, cred,
- td != NULL ? td->td_proc : NULL, &str, &len);
-
- if (!error) {
- uiop->uio_rw = UIO_READ;
- error = uiomove(str, len, uiop);
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct uio *uiop = ap->a_uio;
+ struct ucred *cred = ap->a_cred;
+ struct thread *td = ap->a_uio->uio_td;
+ /* locals */
+ int error;
+ char *str;
+ int len;
- if (coda_symlink_cache) {
- cp->c_symlink = str;
- cp->c_symlen = len;
- cp->c_flags |= C_SYMLINK;
- } else
- CODA_FREE(str, len);
- }
+ MARK_ENTRY(CODA_READLINK_STATS);
- CODADEBUG(CODA_READLINK, myprintf(("in readlink result %d\n",error));)
- return(error);
+ /*
+ * Check for readlink of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_READLINK_STATS);
+ return (ENOENT);
+ }
+ if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) {
+ /*
+ * Symlink was cached.
+ */
+ uiop->uio_rw = UIO_READ;
+ error = uiomove(cp->c_symlink, (int)cp->c_symlen, uiop);
+ if (error)
+ MARK_INT_FAIL(CODA_READLINK_STATS);
+ else
+ MARK_INT_SAT(CODA_READLINK_STATS);
+ return (error);
+ }
+ error = venus_readlink(vtomi(vp), &cp->c_fid, cred, td != NULL ?
+ td->td_proc : NULL, &str, &len);
+ if (!error) {
+ uiop->uio_rw = UIO_READ;
+ error = uiomove(str, len, uiop);
+ if (coda_symlink_cache) {
+ cp->c_symlink = str;
+ cp->c_symlen = len;
+ cp->c_flags |= C_SYMLINK;
+ } else
+ CODA_FREE(str, len);
+ }
+ CODADEBUG(CODA_READLINK, myprintf(("in readlink result %d\n",
+ error)););
+ return (error);
}
int
coda_fsync(struct vop_fsync_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- struct thread *td = ap->a_td;
-/* locals */
- struct vnode *convp = cp->c_ovp;
- int error;
-
- MARK_ENTRY(CODA_FSYNC_STATS);
-
- /* Check for fsync on an unmounting object */
- /*
- * XXX: Is this comment true on FreeBSD? It seems likely, since
- * unmounting is fairly non-atomic.
- *
- * The NetBSD kernel, in it's infinite wisdom, can try to fsync
- * after an unmount has been initiated. This is a Bad Thing,
- * which we have to avoid. Not a legitimate failure for stats.
- */
- if (IS_UNMOUNTING(cp)) {
- return(ENODEV);
- }
-
- /* Check for fsync of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_SAT(CODA_FSYNC_STATS);
- return(0);
- }
-
- if (convp) {
- vn_lock(convp, LK_EXCLUSIVE | LK_RETRY);
- VOP_FSYNC(convp, MNT_WAIT, td);
- VOP_UNLOCK(convp, 0);
- }
-
- /*
- * We see fsyncs with usecount == 1 then usecount == 0.
- * For now we ignore them.
- */
- /*
- VI_LOCK(vp);
- if (!vp->v_usecount) {
- printf("coda_fsync on vnode %p with %d usecount. c_flags = %x (%x)\n",
- vp, vp->v_usecount, cp->c_flags, cp->c_flags&C_PURGING);
- }
- VI_UNLOCK(vp);
- */
-
- /*
- * We can expect fsync on any vnode at all if venus is purging it.
- * Venus can't very well answer the fsync request, now can it?
- * Hopefully, it won't have to, because hopefully, venus preserves
- * the (possibly untrue) invariant that it never purges an open
- * vnode. Hopefully.
- */
- if (cp->c_flags & C_PURGING) {
- return(0);
- }
-
- /* needs research */
- return 0;
- error = venus_fsync(vtomi(vp), &cp->c_fid, td->td_proc);
-
- CODADEBUG(CODA_FSYNC, myprintf(("in fsync result %d\n",error)); );
- return(error);
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct thread *td = ap->a_td;
+ /* locals */
+ struct vnode *convp = cp->c_ovp;
+ int error;
+
+ MARK_ENTRY(CODA_FSYNC_STATS);
+
+ /*
+ * Check for fsync on an unmounting object.
+ *
+ * XXX: Is this comment true on FreeBSD? It seems likely, since
+ * unmounting is fairly non-atomic.
+ *
+ * The NetBSD kernel, in it's infinite wisdom, can try to fsync after
+ * an unmount has been initiated. This is a Bad Thing, which we have
+ * to avoid. Not a legitimate failure for stats.
+ */
+ if (IS_UNMOUNTING(cp))
+ return (ENODEV);
+
+ /*
+ * Check for fsync of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_SAT(CODA_FSYNC_STATS);
+ return (0);
+ }
+ if (convp != NULL) {
+ vn_lock(convp, LK_EXCLUSIVE | LK_RETRY);
+ VOP_FSYNC(convp, MNT_WAIT, td);
+ VOP_UNLOCK(convp, 0);
+ }
+
+ /*
+ * We see fsyncs with usecount == 1 then usecount == 0. For now we
+ * ignore them.
+ */
+#if 0
+ VI_LOCK(vp);
+ if (!vp->v_usecount) {
+ printf("coda_fsync on vnode %p with %d usecount. "
+ "c_flags = %x (%x)\n", vp, vp->v_usecount, cp->c_flags,
+ cp->c_flags&C_PURGING);
+ }
+ VI_UNLOCK(vp);
+#endif
+
+ /*
+ * We can expect fsync on any vnode at all if venus is purging it.
+ * Venus can't very well answer the fsync request, now can it?
+ * Hopefully, it won't have to, because hopefully, venus preserves
+ * the (possibly untrue) invariant that it never purges an open
+ * vnode. Hopefully.
+ */
+ if (cp->c_flags & C_PURGING)
+ return (0);
+
+ /* XXX: needs research */
+ return (0);
+ error = venus_fsync(vtomi(vp), &cp->c_fid, td->td_proc);
+ CODADEBUG(CODA_FSYNC, myprintf(("in fsync result %d\n", error)););
+ return (error);
}
int
coda_inactive(struct vop_inactive_args *ap)
{
- /* XXX - at the moment, inactive doesn't look at cred, and doesn't
- have a proc pointer. Oops. */
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- struct ucred *cred __attribute__((unused)) = NULL;
- struct thread *td __attribute__((unused)) = curthread;
-/* upcall decl */
-/* locals */
-
- /* We don't need to send inactive to venus - DCS */
- MARK_ENTRY(CODA_INACTIVE_STATS);
-
- CODADEBUG(CODA_INACTIVE, myprintf(("in inactive, %s, vfsp %p\n",
- coda_f2s(&cp->c_fid), vp->v_mount));)
-
- vp->v_object = NULL;
-
- /* If an array has been allocated to hold the symlink, deallocate it */
- if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) {
- if (cp->c_symlink == NULL)
- panic("coda_inactive: null symlink pointer in cnode");
-
- CODA_FREE(cp->c_symlink, cp->c_symlen);
- cp->c_flags &= ~C_SYMLINK;
- cp->c_symlen = 0;
- }
-
- /* Remove it from the table so it can't be found. */
- coda_unsave(cp);
- if ((struct coda_mntinfo *)(vp->v_mount->mnt_data) == NULL) {
- myprintf(("Help! vfsp->vfs_data was NULL, but vnode %p wasn't dying\n", vp));
- panic("badness in coda_inactive\n");
- }
-
- if (IS_UNMOUNTING(cp)) {
+ /*
+ * XXX - at the moment, inactive doesn't look at cred, and doesn't
+ * have a proc pointer. Oops.
+ */
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct ucred *cred __attribute__((unused)) = NULL;
+ struct thread *td __attribute__((unused)) = curthread;
+ /* upcall decl */
+ /* locals */
+
+ /*
+ * We don't need to send inactive to venus - DCS.
+ */
+ MARK_ENTRY(CODA_INACTIVE_STATS);
+ CODADEBUG(CODA_INACTIVE, myprintf(("in inactive, %s, vfsp %p\n",
+ coda_f2s(&cp->c_fid), vp->v_mount)););
+ vp->v_object = NULL;
+
+ /*
+ * If an array has been allocated to hold the symlink, deallocate it.
+ */
+ if ((coda_symlink_cache) && (VALID_SYMLINK(cp))) {
+ if (cp->c_symlink == NULL)
+ panic("coda_inactive: null symlink pointer in cnode");
+ CODA_FREE(cp->c_symlink, cp->c_symlen);
+ cp->c_flags &= ~C_SYMLINK;
+ cp->c_symlen = 0;
+ }
+
+ /*
+ * Remove it from the table so it can't be found.
+ */
+ coda_unsave(cp);
+ if ((struct coda_mntinfo *)(vp->v_mount->mnt_data) == NULL) {
+ myprintf(("Help! vfsp->vfs_data was NULL, but vnode %p "
+ "wasn't dying\n", vp));
+ panic("badness in coda_inactive\n");
+ }
+ if (IS_UNMOUNTING(cp)) {
#ifdef DEBUG
- printf("coda_inactive: IS_UNMOUNTING use %d: vp %p, cp %p\n", vrefcnt(vp), vp, cp);
- if (cp->c_ovp != NULL)
- printf("coda_inactive: cp->ovp != NULL use %d: vp %p, cp %p\n",
- vrefcnt(vp), vp, cp);
+ printf("coda_inactive: IS_UNMOUNTING use %d: vp %p, cp %p\n",
+ vrefcnt(vp), vp, cp);
+ if (cp->c_ovp != NULL)
+ printf("coda_inactive: cp->ovp != NULL use %d: vp "
+ "%p, cp %p\n", vrefcnt(vp), vp, cp);
#endif
- } else {
+ } else {
#ifdef OLD_DIAGNOSTIC
- if (vrefcnt(CTOV(cp))) {
- panic("coda_inactive: nonzero reference count");
- }
- if (cp->c_ovp != NULL) {
- panic("coda_inactive: cp->ovp != NULL");
- }
+ if (vrefcnt(CTOV(cp)))
+ panic("coda_inactive: nonzero reference count");
+ if (cp->c_ovp != NULL)
+ panic("coda_inactive: cp->ovp != NULL");
#endif
- vgone(vp);
- }
-
- MARK_INT_SAT(CODA_INACTIVE_STATS);
- return(0);
+ vgone(vp);
+ }
+ MARK_INT_SAT(CODA_INACTIVE_STATS);
+ return (0);
}
/*
* Remote filesystem operations having to do with directory manipulation.
*/
-/*
+/*
* In FreeBSD, lookup returns the vnode locked.
*/
int
coda_lookup(struct vop_lookup_args *ap)
{
-/* true args */
- struct vnode *dvp = ap->a_dvp;
- struct cnode *dcp = VTOC(dvp);
- struct vnode **vpp = ap->a_vpp;
- /*
- * It looks as though ap->a_cnp->ni_cnd->cn_nameptr holds the rest
- * of the string to xlate, and that we must try to get at least
- * ap->a_cnp->ni_cnd->cn_namelen of those characters to macth. I
- * could be wrong.
- */
- struct componentname *cnp = ap->a_cnp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* locals */
- struct cnode *cp;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- CodaFid VFid;
- int vtype;
- int error = 0;
-
- MARK_ENTRY(CODA_LOOKUP_STATS);
-
- CODADEBUG(CODA_LOOKUP, myprintf(("lookup: %s in %s\n",
- nm, coda_f2s(&dcp->c_fid))););
-
- /* Check for lookup of control object. */
- if (IS_CTL_NAME(dvp, nm, len)) {
- *vpp = coda_ctlvp;
- vref(*vpp);
- MARK_INT_SAT(CODA_LOOKUP_STATS);
- goto exit;
- }
-
- if (len+1 > CODA_MAXNAMLEN) {
- MARK_INT_FAIL(CODA_LOOKUP_STATS);
-
- CODADEBUG(CODA_LOOKUP, myprintf(("name too long: lookup, %s (%s)\n",
- coda_f2s(&dcp->c_fid), nm)););
- *vpp = (struct vnode *)0;
- error = EINVAL;
- goto exit;
- }
- /* First try to look the file up in the cfs name cache */
- /* lock the parent vnode? */
- cp = coda_nc_lookup(dcp, nm, len, cred);
- if (cp) {
- *vpp = CTOV(cp);
- vref(*vpp);
- CODADEBUG(CODA_LOOKUP,
- myprintf(("lookup result %d vpp %p\n",error,*vpp));)
- } else {
-
- /* The name wasn't cached, so we need to contact Venus */
- error = venus_lookup(vtomi(dvp), &dcp->c_fid, nm, len, cred, td->td_proc, &VFid, &vtype);
-
- if (error) {
- MARK_INT_FAIL(CODA_LOOKUP_STATS);
+ /* true args */
+ struct vnode *dvp = ap->a_dvp;
+ struct cnode *dcp = VTOC(dvp);
+ struct vnode **vpp = ap->a_vpp;
+ /*
+ * It looks as though ap->a_cnp->ni_cnd->cn_nameptr holds the rest of
+ * the string to xlate, and that we must try to get at least
+ * ap->a_cnp->ni_cnd->cn_namelen of those characters to macth. I
+ * could be wrong.
+ */
+ struct componentname *cnp = ap->a_cnp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* locals */
+ struct cnode *cp;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ CodaFid VFid;
+ int vtype;
+ int error = 0;
+
+ MARK_ENTRY(CODA_LOOKUP_STATS);
+ CODADEBUG(CODA_LOOKUP, myprintf(("lookup: %s in %s\n", nm,
+ coda_f2s(&dcp->c_fid))););
+
+ /*
+ * Check for lookup of control object.
+ */
+ if (IS_CTL_NAME(dvp, nm, len)) {
+ *vpp = coda_ctlvp;
+ vref(*vpp);
+ MARK_INT_SAT(CODA_LOOKUP_STATS);
+ goto exit;
+ }
+ if (len+1 > CODA_MAXNAMLEN) {
+ MARK_INT_FAIL(CODA_LOOKUP_STATS);
+ CODADEBUG(CODA_LOOKUP, myprintf(("name too long: lookup, "
+ "%s (%s)\n", coda_f2s(&dcp->c_fid), nm)););
+ *vpp = NULL;
+ error = EINVAL;
+ goto exit;
+ }
- CODADEBUG(CODA_LOOKUP, myprintf(("lookup error on %s (%s)%d\n",
- coda_f2s(&dcp->c_fid), nm, error));)
- *vpp = (struct vnode *)0;
+ /*
+ * First try to look the file up in the cfs name cache.
+ *
+ * XXX: lock the parent vnode?
+ */
+ cp = coda_nc_lookup(dcp, nm, len, cred);
+ if (cp) {
+ *vpp = CTOV(cp);
+ vref(*vpp);
+ CODADEBUG(CODA_LOOKUP, myprintf(("lookup result %d vpp %p\n",
+ error,*vpp)););
} else {
- MARK_INT_SAT(CODA_LOOKUP_STATS);
- CODADEBUG(CODA_LOOKUP,
- myprintf(("lookup: %s type %o result %d\n",
- coda_f2s(&VFid), vtype, error)); )
- cp = make_coda_node(&VFid, dvp->v_mount, vtype);
- *vpp = CTOV(cp);
-
- /* enter the new vnode in the Name Cache only if the top bit isn't set */
- /* And don't enter a new vnode for an invalid one! */
- if (!(vtype & CODA_NOCACHE))
- coda_nc_enter(VTOC(dvp), nm, len, cred, VTOC(*vpp));
+ /*
+ * The name wasn't cached, so we need to contact Venus.
+ */
+ error = venus_lookup(vtomi(dvp), &dcp->c_fid, nm, len, cred,
+ td->td_proc, &VFid, &vtype);
+ if (error) {
+ MARK_INT_FAIL(CODA_LOOKUP_STATS);
+ CODADEBUG(CODA_LOOKUP, myprintf(("lookup error on "
+ "%s (%s)%d\n", coda_f2s(&dcp->c_fid), nm,
+ error)););
+ *vpp = NULL;
+ } else {
+ MARK_INT_SAT(CODA_LOOKUP_STATS);
+ CODADEBUG(CODA_LOOKUP, myprintf(("lookup: %s type %o "
+ "result %d\n", coda_f2s(&VFid), vtype, error)););
+ cp = make_coda_node(&VFid, dvp->v_mount, vtype);
+ *vpp = CTOV(cp);
+
+ /*
+ * Enter the new vnode in the Name Cache only if the
+ * top bit isn't set.
+ *
+ * And don't enter a new vnode for an invalid one!
+ */
+ if (!(vtype & CODA_NOCACHE))
+ coda_nc_enter(VTOC(dvp), nm, len, cred,
+ VTOC(*vpp));
+ }
}
- }
-
- exit:
- /*
- * If we are creating, and this was the last name to be looked up,
- * and the error was ENOENT, then there really shouldn't be an
- * error and we can make the leaf NULL and return success. Since
- * this is supposed to work under Mach as well as FreeBSD, we're
- * leaving this fn wrapped. We also must tell lookup/namei that
- * we need to save the last component of the name. (Create will
- * have to free the name buffer later...lucky us...)
- */
- if (((cnp->cn_nameiop == CREATE) || (cnp->cn_nameiop == RENAME))
- && (cnp->cn_flags & ISLASTCN)
- && (error == ENOENT))
- {
- error = EJUSTRETURN;
- cnp->cn_flags |= SAVENAME;
- *ap->a_vpp = NULL;
- }
-
- /*
- * If we are removing, and we are at the last element, and we
- * found it, then we need to keep the name around so that the
- * removal will go ahead as planned. Unfortunately, this will
- * probably also lock the to-be-removed vnode, which may or may
- * not be a good idea. I'll have to look at the bits of
- * coda_remove to make sure. We'll only save the name if we did in
- * fact find the name, otherwise coda_remove won't have a chance
- * to free the pathname.
- */
- if ((cnp->cn_nameiop == DELETE)
- && (cnp->cn_flags & ISLASTCN)
- && !error)
- {
- cnp->cn_flags |= SAVENAME;
- }
-
- /*
- * If the lookup went well, we need to (potentially?) unlock the
- * parent, and lock the child. We are only responsible for
- * checking to see if the parent is supposed to be unlocked before
- * we return. We must always lock the child (provided there is
- * one, and (the parent isn't locked or it isn't the same as the
- * parent.) Simple, huh? We can never leave the parent locked unless
- * we are ISLASTCN
- */
- if (!error || (error == EJUSTRETURN)) {
- if (cnp->cn_flags & ISDOTDOT) {
- if ((error = VOP_UNLOCK(dvp, 0))) {
- return error;
- }
- /*
- * The parent is unlocked. As long as there is a child,
- * lock it without bothering to check anything else.
- */
- if (*ap->a_vpp) {
- vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
- }
- vn_lock(dvp, LK_RETRY|LK_EXCLUSIVE);
+exit:
+ /*
+ * If we are creating, and this was the last name to be looked up,
+ * and the error was ENOENT, then there really shouldn't be an error
+ * and we can make the leaf NULL and return success. Since this is
+ * supposed to work under Mach as well as FreeBSD, we're leaving this
+ * fn wrapped. We also must tell lookup/namei that we need to save
+ * the last component of the name. (Create will have to free the
+ * name buffer later...lucky us...).
+ */
+ if (((cnp->cn_nameiop == CREATE) || (cnp->cn_nameiop == RENAME))
+ && (cnp->cn_flags & ISLASTCN) && (error == ENOENT)) {
+ error = EJUSTRETURN;
+ cnp->cn_flags |= SAVENAME;
+ *ap->a_vpp = NULL;
+ }
+
+ /*
+ * If we are removing, and we are at the last element, and we found
+ * it, then we need to keep the name around so that the removal will
+ * go ahead as planned. Unfortunately, this will probably also lock
+ * the to-be-removed vnode, which may or may not be a good idea.
+ * I'll have to look at the bits of coda_remove to make sure. We'll
+ * only save the name if we did in fact find the name, otherwise
+ * coda_remove won't have a chance to free the pathname.
+ */
+ if ((cnp->cn_nameiop == DELETE) && (cnp->cn_flags & ISLASTCN)
+ && !error)
+ cnp->cn_flags |= SAVENAME;
+
+ /*
+ * If the lookup went well, we need to (potentially?) unlock the
+ * parent, and lock the child. We are only responsible for checking
+ * to see if the parent is supposed to be unlocked before we return.
+ * We must always lock the child (provided there is one, and (the
+ * parent isn't locked or it isn't the same as the parent.) Simple,
+ * huh? We can never leave the parent locked unless we are ISLASTCN.
+ */
+ if (!error || (error == EJUSTRETURN)) {
+ if (cnp->cn_flags & ISDOTDOT) {
+ VOP_UNLOCK(dvp, 0);
+ /*
+ * The parent is unlocked. As long as there is a
+ * child, lock it without bothering to check anything
+ * else.
+ */
+ if (*ap->a_vpp)
+ vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
+ vn_lock(dvp, LK_RETRY|LK_EXCLUSIVE);
+ } else {
+ /*
+ * The parent is locked, and may be the same as the
+ * child. If different, go ahead and lock it.
+ */
+ if (*ap->a_vpp && (*ap->a_vpp != dvp))
+ vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
+ }
} else {
- /* The parent is locked, and may be the same as the child */
- if (*ap->a_vpp && (*ap->a_vpp != dvp)) {
- /* Different, go ahead and lock it. */
- vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
- }
+ /*
+ * If the lookup failed, we need to ensure that the leaf is
+ * NULL.
+ *
+ * Don't change any locking?
+ */
+ *ap->a_vpp = NULL;
}
- } else {
- /* If the lookup failed, we need to ensure that the leaf is NULL */
- /* Don't change any locking? */
- *ap->a_vpp = NULL;
- }
- return(error);
+ return (error);
}
/*ARGSUSED*/
int
coda_create(struct vop_create_args *ap)
{
-/* true args */
- struct vnode *dvp = ap->a_dvp;
- struct cnode *dcp = VTOC(dvp);
- struct vattr *va = ap->a_vap;
- int exclusive = 1;
- int mode = ap->a_vap->va_mode;
- struct vnode **vpp = ap->a_vpp;
- struct componentname *cnp = ap->a_cnp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* locals */
- int error;
- struct cnode *cp;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- CodaFid VFid;
- struct vattr attr;
-
- MARK_ENTRY(CODA_CREATE_STATS);
-
- /* All creates are exclusive XXX */
- /* I'm assuming the 'mode' argument is the file mode bits XXX */
-
- /* Check for create of control object. */
- if (IS_CTL_NAME(dvp, nm, len)) {
- *vpp = (struct vnode *)0;
- MARK_INT_FAIL(CODA_CREATE_STATS);
- return(EACCES);
- }
-
- error = venus_create(vtomi(dvp), &dcp->c_fid, nm, len, exclusive, mode, va, cred, td->td_proc, &VFid, &attr);
-
- if (!error) {
-
- /* If this is an exclusive create, panic if the file already exists. */
- /* Venus should have detected the file and reported EEXIST. */
-
- if ((exclusive == 1) &&
- (coda_find(&VFid) != NULL))
- panic("cnode existed for newly created file!");
-
- cp = make_coda_node(&VFid, dvp->v_mount, attr.va_type);
- *vpp = CTOV(cp);
-
- /* Update va to reflect the new attributes. */
- (*va) = attr;
-
- /* Update the attribute cache and mark it as valid */
- if (coda_attr_cache) {
- VTOC(*vpp)->c_vattr = attr;
- VTOC(*vpp)->c_flags |= C_VATTR;
+ /* true args */
+ struct vnode *dvp = ap->a_dvp;
+ struct cnode *dcp = VTOC(dvp);
+ struct vattr *va = ap->a_vap;
+ int exclusive = 1;
+ int mode = ap->a_vap->va_mode;
+ struct vnode **vpp = ap->a_vpp;
+ struct componentname *cnp = ap->a_cnp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* locals */
+ int error;
+ struct cnode *cp;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ CodaFid VFid;
+ struct vattr attr;
+
+ MARK_ENTRY(CODA_CREATE_STATS);
+
+ /*
+ * All creates are exclusive XXX.
+ *
+ * I'm assuming the 'mode' argument is the file mode bits XXX.
+ *
+ * Check for create of control object.
+ */
+ if (IS_CTL_NAME(dvp, nm, len)) {
+ *vpp = (struct vnode *)0;
+ MARK_INT_FAIL(CODA_CREATE_STATS);
+ return (EACCES);
}
-
- /* Invalidate the parent's attr cache, the modification time has changed */
- VTOC(dvp)->c_flags &= ~C_VATTR;
-
- /* enter the new vnode in the Name Cache */
- coda_nc_enter(VTOC(dvp), nm, len, cred, VTOC(*vpp));
-
- CODADEBUG(CODA_CREATE,
- myprintf(("create: %s, result %d\n",
- coda_f2s(&VFid), error)); )
- } else {
- *vpp = (struct vnode *)0;
- CODADEBUG(CODA_CREATE, myprintf(("create error %d\n", error));)
- }
-
- if (!error) {
- if (cnp->cn_flags & LOCKLEAF) {
- vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
+ error = venus_create(vtomi(dvp), &dcp->c_fid, nm, len, exclusive,
+ mode, va, cred, td->td_proc, &VFid, &attr);
+ if (!error) {
+ /*
+ * If this is an exclusive create, panic if the file already
+ * exists.
+ *
+ * Venus should have detected the file and reported EEXIST.
+ */
+ if ((exclusive == 1) && (coda_find(&VFid) != NULL))
+ panic("cnode existed for newly created file!");
+ cp = make_coda_node(&VFid, dvp->v_mount, attr.va_type);
+ *vpp = CTOV(cp);
+
+ /*
+ * Update va to reflect the new attributes.
+ */
+ (*va) = attr;
+
+ /*
+ * Update the attribute cache and mark it as valid.
+ */
+ if (coda_attr_cache) {
+ VTOC(*vpp)->c_vattr = attr;
+ VTOC(*vpp)->c_flags |= C_VATTR;
+ }
+
+ /*
+ * Invalidate the parent's attr cache, the modification time
+ * has changed.
+ */
+ VTOC(dvp)->c_flags &= ~C_VATTR;
+
+ /*
+ * Enter the new vnode in the Name Cache.
+ */
+ coda_nc_enter(VTOC(dvp), nm, len, cred, VTOC(*vpp));
+ CODADEBUG(CODA_CREATE, myprintf(("create: %s, result %d\n",
+ coda_f2s(&VFid), error)););
+ } else {
+ *vpp = (struct vnode *)0;
+ CODADEBUG(CODA_CREATE, myprintf(("create error %d\n",
+ error)););
}
+ if (!error) {
+ if (cnp->cn_flags & LOCKLEAF)
+ vn_lock(*ap->a_vpp, LK_EXCLUSIVE | LK_RETRY);
#ifdef OLD_DIAGNOSTIC
- else {
- printf("coda_create: LOCKLEAF not set!\n");
- }
+ else
+ printf("coda_create: LOCKLEAF not set!\n");
#endif
- }
- return(error);
+ }
+ return (error);
}
int
coda_remove(struct vop_remove_args *ap)
{
-/* true args */
- struct vnode *dvp = ap->a_dvp;
- struct cnode *cp = VTOC(dvp);
- struct componentname *cnp = ap->a_cnp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* locals */
- int error;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- struct cnode *tp;
-
- MARK_ENTRY(CODA_REMOVE_STATS);
-
- CODADEBUG(CODA_REMOVE, myprintf(("remove: %s in %s\n",
- nm, coda_f2s(&cp->c_fid))););
- /* Remove the file's entry from the CODA Name Cache */
- /* We're being conservative here, it might be that this person
- * doesn't really have sufficient access to delete the file
- * but we feel zapping the entry won't really hurt anyone -- dcs
- */
- /* I'm gonna go out on a limb here. If a file and a hardlink to it
- * exist, and one is removed, the link count on the other will be
- * off by 1. We could either invalidate the attrs if cached, or
- * fix them. I'll try to fix them. DCS 11/8/94
- */
- tp = coda_nc_lookup(VTOC(dvp), nm, len, cred);
- if (tp) {
- if (VALID_VATTR(tp)) { /* If attrs are cached */
- if (tp->c_vattr.va_nlink > 1) { /* If it's a hard link */
- tp->c_vattr.va_nlink--;
- }
+ /* true args */
+ struct vnode *dvp = ap->a_dvp;
+ struct cnode *cp = VTOC(dvp);
+ struct componentname *cnp = ap->a_cnp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* locals */
+ int error;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ struct cnode *tp;
+
+ MARK_ENTRY(CODA_REMOVE_STATS);
+ CODADEBUG(CODA_REMOVE, myprintf(("remove: %s in %s\n", nm,
+ coda_f2s(&cp->c_fid))););
+
+ /*
+ * Remove the file's entry from the CODA Name Cache.
+ *
+ * We're being conservative here, it might be that this person
+ * doesn't really have sufficient access to delete the file but we
+ * feel zapping the entry won't really hurt anyone -- dcs.
+ *
+ * I'm gonna go out on a limb here. If a file and a hardlink to it
+ * exist, and one is removed, the link count on the other will be off
+ * by 1. We could either invalidate the attrs if cached, orfix them.
+ * I'll try to fix them. DCS 11/8/94
+ */
+ tp = coda_nc_lookup(VTOC(dvp), nm, len, cred);
+ if (tp!= NULL) {
+ if (VALID_VATTR(tp)) {
+ if (tp->c_vattr.va_nlink > 1)
+ tp->c_vattr.va_nlink--;
+ }
+ coda_nc_zapfile(VTOC(dvp), nm, len);
}
-
- coda_nc_zapfile(VTOC(dvp), nm, len);
- /* No need to flush it if it doesn't exist! */
- }
- /* Invalidate the parent's attr cache, the modification time has changed */
- VTOC(dvp)->c_flags &= ~C_VATTR;
-
- /* Check for remove of control object. */
- if (IS_CTL_NAME(dvp, nm, len)) {
- MARK_INT_FAIL(CODA_REMOVE_STATS);
- return(ENOENT);
- }
- error = venus_remove(vtomi(dvp), &cp->c_fid, nm, len, cred, td->td_proc);
-
- CODADEBUG(CODA_REMOVE, myprintf(("in remove result %d\n",error)); )
+ /*
+ * Invalidate the parent's attr cache, the modification time has
+ * changed.
+ */
+ VTOC(dvp)->c_flags &= ~C_VATTR;
- return(error);
+ /*
+ * Check for remove of control object.
+ */
+ if (IS_CTL_NAME(dvp, nm, len)) {
+ MARK_INT_FAIL(CODA_REMOVE_STATS);
+ return (ENOENT);
+ }
+ error = venus_remove(vtomi(dvp), &cp->c_fid, nm, len, cred,
+ td->td_proc);
+ CODADEBUG(CODA_REMOVE, myprintf(("in remove result %d\n",error)););
+ return (error);
}
int
coda_link(struct vop_link_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- struct vnode *tdvp = ap->a_tdvp;
- struct cnode *tdcp = VTOC(tdvp);
- struct componentname *cnp = ap->a_cnp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* locals */
- int error;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
-
- MARK_ENTRY(CODA_LINK_STATS);
-
- if (codadebug & CODADBGMSK(CODA_LINK)) {
- myprintf(("nb_link: vp fid: %s\n",
- coda_f2s(&cp->c_fid)));
- myprintf(("nb_link: tdvp fid: %s)\n",
- coda_f2s(&tdcp->c_fid)));
- }
- if (codadebug & CODADBGMSK(CODA_LINK)) {
- myprintf(("link: vp fid: %s\n",
- coda_f2s(&cp->c_fid)));
- myprintf(("link: tdvp fid: %s\n",
- coda_f2s(&tdcp->c_fid)));
- }
-
- /* Check for link to/from control object. */
- if (IS_CTL_NAME(tdvp, nm, len) || IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_LINK_STATS);
- return(EACCES);
- }
-
- error = venus_link(vtomi(vp), &cp->c_fid, &tdcp->c_fid, nm, len, cred, td->td_proc);
-
- /* Invalidate the parent's attr cache, the modification time has changed */
- VTOC(tdvp)->c_flags &= ~C_VATTR;
- VTOC(vp)->c_flags &= ~C_VATTR;
-
- CODADEBUG(CODA_LINK, myprintf(("in link result %d\n",error)); )
-
- return(error);
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct vnode *tdvp = ap->a_tdvp;
+ struct cnode *tdcp = VTOC(tdvp);
+ struct componentname *cnp = ap->a_cnp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* locals */
+ int error;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+
+ MARK_ENTRY(CODA_LINK_STATS);
+
+ if (codadebug & CODADBGMSK(CODA_LINK)) {
+ myprintf(("nb_link: vp fid: %s\n", coda_f2s(&cp->c_fid)));
+ myprintf(("nb_link: tdvp fid: %s)\n",
+ coda_f2s(&tdcp->c_fid)));
+ }
+ if (codadebug & CODADBGMSK(CODA_LINK)) {
+ myprintf(("link: vp fid: %s\n", coda_f2s(&cp->c_fid)));
+ myprintf(("link: tdvp fid: %s\n", coda_f2s(&tdcp->c_fid)));
+ }
+
+ /*
+ * Check for link to/from control object.
+ */
+ if (IS_CTL_NAME(tdvp, nm, len) || IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_LINK_STATS);
+ return (EACCES);
+ }
+ error = venus_link(vtomi(vp), &cp->c_fid, &tdcp->c_fid, nm, len,
+ cred, td->td_proc);
+
+ /*
+ * Invalidate the parent's attr cache, the modification time has
+ * changed.
+ */
+ VTOC(tdvp)->c_flags &= ~C_VATTR;
+ VTOC(vp)->c_flags &= ~C_VATTR;
+ CODADEBUG(CODA_LINK, myprintf(("in link result %d\n",error)););
+ return (error);
}
int
coda_rename(struct vop_rename_args *ap)
{
-/* true args */
- struct vnode *odvp = ap->a_fdvp;
- struct cnode *odcp = VTOC(odvp);
- struct componentname *fcnp = ap->a_fcnp;
- struct vnode *ndvp = ap->a_tdvp;
- struct cnode *ndcp = VTOC(ndvp);
- struct componentname *tcnp = ap->a_tcnp;
- struct ucred *cred = fcnp->cn_cred;
- struct thread *td = fcnp->cn_thread;
-/* true args */
- int error;
- const char *fnm = fcnp->cn_nameptr;
- int flen = fcnp->cn_namelen;
- const char *tnm = tcnp->cn_nameptr;
- int tlen = tcnp->cn_namelen;
-
- MARK_ENTRY(CODA_RENAME_STATS);
-
- /* Hmmm. The vnodes are already looked up. Perhaps they are locked?
- This could be Bad. XXX */
+ /* true args */
+ struct vnode *odvp = ap->a_fdvp;
+ struct cnode *odcp = VTOC(odvp);
+ struct componentname *fcnp = ap->a_fcnp;
+ struct vnode *ndvp = ap->a_tdvp;
+ struct cnode *ndcp = VTOC(ndvp);
+ struct componentname *tcnp = ap->a_tcnp;
+ struct ucred *cred = fcnp->cn_cred;
+ struct thread *td = fcnp->cn_thread;
+ /* true args */
+ int error;
+ const char *fnm = fcnp->cn_nameptr;
+ int flen = fcnp->cn_namelen;
+ const char *tnm = tcnp->cn_nameptr;
+ int tlen = tcnp->cn_namelen;
+
+ MARK_ENTRY(CODA_RENAME_STATS);
+
+ /*
+ * Hmmm. The vnodes are already looked up. Perhaps they are locked?
+ * This could be Bad. XXX
+ */
#ifdef OLD_DIAGNOSTIC
- if ((fcnp->cn_cred != tcnp->cn_cred)
- || (fcnp->cn_thread != tcnp->cn_thread))
- {
- panic("coda_rename: component names don't agree");
- }
+ if ((fcnp->cn_cred != tcnp->cn_cred) ||
+ (fcnp->cn_thread != tcnp->cn_thread))
+ panic("coda_rename: component names don't agree");
#endif
- /* Check for rename involving control object. */
- if (IS_CTL_NAME(odvp, fnm, flen) || IS_CTL_NAME(ndvp, tnm, tlen)) {
- MARK_INT_FAIL(CODA_RENAME_STATS);
- return(EACCES);
- }
-
- /* Problem with moving directories -- need to flush entry for .. */
- if (odvp != ndvp) {
- struct cnode *ovcp = coda_nc_lookup(VTOC(odvp), fnm, flen, cred);
- if (ovcp) {
- struct vnode *ovp = CTOV(ovcp);
- if ((ovp) &&
- (ovp->v_type == VDIR)) /* If it's a directory */
- coda_nc_zapfile(VTOC(ovp),"..", 2);
+ /*
+ * Check for rename involving control object.
+ */
+ if (IS_CTL_NAME(odvp, fnm, flen) || IS_CTL_NAME(ndvp, tnm, tlen)) {
+ MARK_INT_FAIL(CODA_RENAME_STATS);
+ return (EACCES);
}
- }
-
- /* Remove the entries for both source and target files */
- coda_nc_zapfile(VTOC(odvp), fnm, flen);
- coda_nc_zapfile(VTOC(ndvp), tnm, tlen);
-
- /* Invalidate the parent's attr cache, the modification time has changed */
- VTOC(odvp)->c_flags &= ~C_VATTR;
- VTOC(ndvp)->c_flags &= ~C_VATTR;
-
- if (flen+1 > CODA_MAXNAMLEN) {
- MARK_INT_FAIL(CODA_RENAME_STATS);
- error = EINVAL;
- goto exit;
- }
-
- if (tlen+1 > CODA_MAXNAMLEN) {
- MARK_INT_FAIL(CODA_RENAME_STATS);
- error = EINVAL;
- goto exit;
- }
-
- error = venus_rename(vtomi(odvp), &odcp->c_fid, &ndcp->c_fid, fnm, flen, tnm, tlen, cred, td->td_proc);
-
- exit:
- CODADEBUG(CODA_RENAME, myprintf(("in rename result %d\n",error));)
- /* XXX - do we need to call cache pureg on the moved vnode? */
- cache_purge(ap->a_fvp);
-
- /* Release parents first, then children. */
- vrele(odvp);
- if (ap->a_tvp) {
- if (ap->a_tvp == ndvp)
- vrele(ndvp);
- else
- vput(ndvp);
- vput(ap->a_tvp);
- } else
- vput(ndvp);
- vrele(ap->a_fvp);
- return(error);
+ /*
+ * Problem with moving directories -- need to flush entry for ..
+ */
+ if (odvp != ndvp) {
+ struct cnode *ovcp = coda_nc_lookup(VTOC(odvp), fnm, flen,
+ cred);
+
+ if (ovcp) {
+ struct vnode *ovp = CTOV(ovcp);
+
+ if ((ovp) && (ovp->v_type == VDIR))
+ coda_nc_zapfile(VTOC(ovp),"..", 2);
+ }
+ }
+
+ /*
+ * Remove the entries for both source and target files.
+ */
+ coda_nc_zapfile(VTOC(odvp), fnm, flen);
+ coda_nc_zapfile(VTOC(ndvp), tnm, tlen);
+
+ /*
+ * Invalidate the parent's attr cache, the modification time has
+ * changed.
+ */
+ VTOC(odvp)->c_flags &= ~C_VATTR;
+ VTOC(ndvp)->c_flags &= ~C_VATTR;
+ if (flen+1 > CODA_MAXNAMLEN) {
+ MARK_INT_FAIL(CODA_RENAME_STATS);
+ error = EINVAL;
+ goto exit;
+ }
+ if (tlen+1 > CODA_MAXNAMLEN) {
+ MARK_INT_FAIL(CODA_RENAME_STATS);
+ error = EINVAL;
+ goto exit;
+ }
+ error = venus_rename(vtomi(odvp), &odcp->c_fid, &ndcp->c_fid, fnm,
+ flen, tnm, tlen, cred, td->td_proc);
+exit:
+ CODADEBUG(CODA_RENAME, myprintf(("in rename result %d\n",error)););
+
+ /*
+ * XXX - do we need to call cache pureg on the moved vnode?
+ */
+ cache_purge(ap->a_fvp);
+
+ /*
+ * Release parents first, then children.
+ */
+ vrele(odvp);
+ if (ap->a_tvp) {
+ if (ap->a_tvp == ndvp)
+ vrele(ndvp);
+ else
+ vput(ndvp);
+ vput(ap->a_tvp);
+ } else
+ vput(ndvp);
+ vrele(ap->a_fvp);
+ return (error);
}
int
coda_mkdir(struct vop_mkdir_args *ap)
{
-/* true args */
- struct vnode *dvp = ap->a_dvp;
- struct cnode *dcp = VTOC(dvp);
- struct componentname *cnp = ap->a_cnp;
- register struct vattr *va = ap->a_vap;
- struct vnode **vpp = ap->a_vpp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* locals */
- int error;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- struct cnode *cp;
- CodaFid VFid;
- struct vattr ova;
-
- MARK_ENTRY(CODA_MKDIR_STATS);
-
- /* Check for mkdir of target object. */
- if (IS_CTL_NAME(dvp, nm, len)) {
- *vpp = (struct vnode *)0;
- MARK_INT_FAIL(CODA_MKDIR_STATS);
- return(EACCES);
- }
-
- if (len+1 > CODA_MAXNAMLEN) {
- *vpp = (struct vnode *)0;
- MARK_INT_FAIL(CODA_MKDIR_STATS);
- return(EACCES);
- }
-
- error = venus_mkdir(vtomi(dvp), &dcp->c_fid, nm, len, va, cred, td->td_proc, &VFid, &ova);
-
- if (!error) {
- if (coda_find(&VFid) != NULL)
- panic("cnode existed for newly created directory!");
-
-
- cp = make_coda_node(&VFid, dvp->v_mount, va->va_type);
- *vpp = CTOV(cp);
-
- /* enter the new vnode in the Name Cache */
- coda_nc_enter(VTOC(dvp), nm, len, cred, VTOC(*vpp));
-
- /* as a side effect, enter "." and ".." for the directory */
- coda_nc_enter(VTOC(*vpp), ".", 1, cred, VTOC(*vpp));
- coda_nc_enter(VTOC(*vpp), "..", 2, cred, VTOC(dvp));
-
- if (coda_attr_cache) {
- VTOC(*vpp)->c_vattr = ova; /* update the attr cache */
- VTOC(*vpp)->c_flags |= C_VATTR; /* Valid attributes in cnode */
+ /* true args */
+ struct vnode *dvp = ap->a_dvp;
+ struct cnode *dcp = VTOC(dvp);
+ struct componentname *cnp = ap->a_cnp;
+ struct vattr *va = ap->a_vap;
+ struct vnode **vpp = ap->a_vpp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* locals */
+ int error;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ struct cnode *cp;
+ CodaFid VFid;
+ struct vattr ova;
+
+ MARK_ENTRY(CODA_MKDIR_STATS);
+
+ /*
+ * Check for mkdir of target object.
+ */
+ if (IS_CTL_NAME(dvp, nm, len)) {
+ *vpp = (struct vnode *)0;
+ MARK_INT_FAIL(CODA_MKDIR_STATS);
+ return (EACCES);
}
+ if (len+1 > CODA_MAXNAMLEN) {
+ *vpp = (struct vnode *)0;
+ MARK_INT_FAIL(CODA_MKDIR_STATS);
+ return (EACCES);
+ }
+ error = venus_mkdir(vtomi(dvp), &dcp->c_fid, nm, len, va, cred,
+ td->td_proc, &VFid, &ova);
+ if (!error) {
+ if (coda_find(&VFid) != NULL)
+ panic("cnode existed for newly created directory!");
+ cp = make_coda_node(&VFid, dvp->v_mount, va->va_type);
+ *vpp = CTOV(cp);
+
+ /*
+ * Enter the new vnode in the Name Cache.
+ */
+ coda_nc_enter(VTOC(dvp), nm, len, cred, VTOC(*vpp));
- /* Invalidate the parent's attr cache, the modification time has changed */
- VTOC(dvp)->c_flags &= ~C_VATTR;
-
- vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
-
- CODADEBUG( CODA_MKDIR, myprintf(("mkdir: %s result %d\n",
- coda_f2s(&VFid), error)); )
+ /*
+ * As a side effect, enter "." and ".." for the directory.
+ */
+ coda_nc_enter(VTOC(*vpp), ".", 1, cred, VTOC(*vpp));
+ coda_nc_enter(VTOC(*vpp), "..", 2, cred, VTOC(dvp));
+ if (coda_attr_cache) {
+ /*
+ * Update the attr cache and mark as valid.
+ */
+ VTOC(*vpp)->c_vattr = ova;
+ VTOC(*vpp)->c_flags |= C_VATTR;
+ }
+
+ /*
+ * Invalidate the parent's attr cache, the modification time
+ * has changed.
+ */
+ VTOC(dvp)->c_flags &= ~C_VATTR;
+ vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
+ CODADEBUG( CODA_MKDIR, myprintf(("mkdir: %s result %d\n",
+ coda_f2s(&VFid), error)););
} else {
- *vpp = (struct vnode *)0;
- CODADEBUG(CODA_MKDIR, myprintf(("mkdir error %d\n",error));)
- }
-
- return(error);
+ *vpp = NULL;
+ CODADEBUG(CODA_MKDIR, myprintf(("mkdir error %d\n",error)););
+ }
+ return (error);
}
int
coda_rmdir(struct vop_rmdir_args *ap)
{
-/* true args */
- struct vnode *dvp = ap->a_dvp;
- struct cnode *dcp = VTOC(dvp);
- struct componentname *cnp = ap->a_cnp;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
-/* true args */
- int error;
- const char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- struct cnode *cp;
-
- MARK_ENTRY(CODA_RMDIR_STATS);
-
- /* Check for rmdir of control object. */
- if (IS_CTL_NAME(dvp, nm, len)) {
- MARK_INT_FAIL(CODA_RMDIR_STATS);
- return(ENOENT);
- }
-
- /* We're being conservative here, it might be that this person
- * doesn't really have sufficient access to delete the file
- * but we feel zapping the entry won't really hurt anyone -- dcs
- */
- /*
- * As a side effect of the rmdir, remove any entries for children of
- * the directory, especially "." and "..".
- */
- cp = coda_nc_lookup(dcp, nm, len, cred);
- if (cp) coda_nc_zapParentfid(&(cp->c_fid), NOT_DOWNCALL);
-
- /* Remove the file's entry from the CODA Name Cache */
- coda_nc_zapfile(dcp, nm, len);
-
- /* Invalidate the parent's attr cache, the modification time has changed */
- dcp->c_flags &= ~C_VATTR;
-
- error = venus_rmdir(vtomi(dvp), &dcp->c_fid, nm, len, cred, td->td_proc);
-
- CODADEBUG(CODA_RMDIR, myprintf(("in rmdir result %d\n", error)); )
-
- return(error);
+ /* true args */
+ struct vnode *dvp = ap->a_dvp;
+ struct cnode *dcp = VTOC(dvp);
+ struct componentname *cnp = ap->a_cnp;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ /* true args */
+ int error;
+ const char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ struct cnode *cp;
+
+ MARK_ENTRY(CODA_RMDIR_STATS);
+
+ /*
+ * Check for rmdir of control object.
+ */
+ if (IS_CTL_NAME(dvp, nm, len)) {
+ MARK_INT_FAIL(CODA_RMDIR_STATS);
+ return (ENOENT);
+ }
+
+ /*
+ * We're being conservative here, it might be that this person
+ * doesn't really have sufficient access to delete the file but we
+ * feel zapping the entry won't really hurt anyone -- dcs
+ *
+ * As a side effect of the rmdir, remove any entries for children of
+ * the directory, especially "." and "..".
+ */
+ cp = coda_nc_lookup(dcp, nm, len, cred);
+ if (cp)
+ coda_nc_zapParentfid(&(cp->c_fid), NOT_DOWNCALL);
+
+ /*
+ * Remove the file's entry from the CODA Name Cache.
+ */
+ coda_nc_zapfile(dcp, nm, len);
+
+ /*
+ * Invalidate the parent's attr cache, the modification time has
+ * changed.
+ */
+ dcp->c_flags &= ~C_VATTR;
+ error = venus_rmdir(vtomi(dvp), &dcp->c_fid, nm, len, cred,
+ td->td_proc);
+ CODADEBUG(CODA_RMDIR, myprintf(("in rmdir result %d\n", error)););
+ return (error);
}
int
coda_symlink(struct vop_symlink_args *ap)
{
-/* true args */
- struct vnode *tdvp = ap->a_dvp;
- struct cnode *tdcp = VTOC(tdvp);
- struct componentname *cnp = ap->a_cnp;
- struct vattr *tva = ap->a_vap;
- char *path = ap->a_target;
- struct ucred *cred = cnp->cn_cred;
- struct thread *td = cnp->cn_thread;
- struct vnode **vpp = ap->a_vpp;
-/* locals */
- int error;
- /*
- * XXX I'm assuming the following things about coda_symlink's
- * arguments:
- * t(foo) is the new name/parent/etc being created.
- * lname is the contents of the new symlink.
- */
- char *nm = cnp->cn_nameptr;
- int len = cnp->cn_namelen;
- int plen = strlen(path);
-
- /*
- * Here's the strategy for the moment: perform the symlink, then
- * do a lookup to grab the resulting vnode. I know this requires
- * two communications with Venus for a new sybolic link, but
- * that's the way the ball bounces. I don't yet want to change
- * the way the Mach symlink works. When Mach support is
- * deprecated, we should change symlink so that the common case
- * returns the resultant vnode in a vpp argument.
- */
-
- MARK_ENTRY(CODA_SYMLINK_STATS);
-
- /* Check for symlink of control object. */
- if (IS_CTL_NAME(tdvp, nm, len)) {
- MARK_INT_FAIL(CODA_SYMLINK_STATS);
- return(EACCES);
- }
-
- if (plen+1 > CODA_MAXPATHLEN) {
- MARK_INT_FAIL(CODA_SYMLINK_STATS);
- return(EINVAL);
- }
-
- if (len+1 > CODA_MAXNAMLEN) {
- MARK_INT_FAIL(CODA_SYMLINK_STATS);
- error = EINVAL;
- goto exit;
- }
-
- error = venus_symlink(vtomi(tdvp), &tdcp->c_fid, path, plen, nm, len, tva, cred, td->td_proc);
-
- /* Invalidate the parent's attr cache, the modification time has changed */
- tdcp->c_flags &= ~C_VATTR;
-
- if (error == 0)
- error = VOP_LOOKUP(tdvp, vpp, cnp);
-
- exit:
- CODADEBUG(CODA_SYMLINK, myprintf(("in symlink result %d\n",error)); )
- return(error);
+ /* true args */
+ struct vnode *tdvp = ap->a_dvp;
+ struct cnode *tdcp = VTOC(tdvp);
+ struct componentname *cnp = ap->a_cnp;
+ struct vattr *tva = ap->a_vap;
+ char *path = ap->a_target;
+ struct ucred *cred = cnp->cn_cred;
+ struct thread *td = cnp->cn_thread;
+ struct vnode **vpp = ap->a_vpp;
+ /* locals */
+ int error;
+
+ /*-
+ * XXX I'm assuming the following things about coda_symlink's
+ * arguments:
+ * t(foo) is the new name/parent/etc being created.
+ * lname is the contents of the new symlink.
+ */
+ char *nm = cnp->cn_nameptr;
+ int len = cnp->cn_namelen;
+ int plen = strlen(path);
+
+ /*
+ * Here's the strategy for the moment: perform the symlink, then do a
+ * lookup to grab the resulting vnode. I know this requires two
+ * communications with Venus for a new sybolic link, but that's the
+ * way the ball bounces. I don't yet want to change the way the Mach
+ * symlink works. When Mach support is deprecated, we should change
+ * symlink so that the common case returns the resultant vnode in a
+ * vpp argument.
+ */
+ MARK_ENTRY(CODA_SYMLINK_STATS);
+
+ /*
+ * Check for symlink of control object.
+ */
+ if (IS_CTL_NAME(tdvp, nm, len)) {
+ MARK_INT_FAIL(CODA_SYMLINK_STATS);
+ return (EACCES);
+ }
+ if (plen+1 > CODA_MAXPATHLEN) {
+ MARK_INT_FAIL(CODA_SYMLINK_STATS);
+ return (EINVAL);
+ }
+ if (len+1 > CODA_MAXNAMLEN) {
+ MARK_INT_FAIL(CODA_SYMLINK_STATS);
+ error = EINVAL;
+ goto exit;
+ }
+ error = venus_symlink(vtomi(tdvp), &tdcp->c_fid, path, plen, nm, len,
+ tva, cred, td->td_proc);
+
+ /*
+ * Invalidate the parent's attr cache, the modification time has
+ * changed.
+ */
+ tdcp->c_flags &= ~C_VATTR;
+ if (error == 0)
+ error = VOP_LOOKUP(tdvp, vpp, cnp);
+exit:
+ CODADEBUG(CODA_SYMLINK, myprintf(("in symlink result %d\n",error)););
+ return (error);
}
/*
* Read directory entries.
*
- * XXXRW: This forwards the operator straight to the cache vnode using
+ * XXX: This forwards the operator straight to the cache vnode using
* VOP_READDIR(), rather than calling venus_readdir(). Why?
*/
int
coda_readdir(struct vop_readdir_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
- register struct uio *uiop = ap->a_uio;
- struct ucred *cred = ap->a_cred;
- int *eofflag = ap->a_eofflag;
- u_long **cookies = ap->a_cookies;
- int *ncookies = ap->a_ncookies;
- struct thread *td = ap->a_uio->uio_td;
-/* upcall decl */
-/* locals */
- int error = 0;
-
- MARK_ENTRY(CODA_READDIR_STATS);
-
- CODADEBUG(CODA_READDIR, myprintf(("coda_readdir(%p, %d, %lld, %d)\n",
- (void *)uiop->uio_iov->iov_base,
- uiop->uio_resid,
- (long long)uiop->uio_offset,
- uiop->uio_segflg)); )
-
- /* Check for readdir of control object. */
- if (IS_CTL_VP(vp)) {
- MARK_INT_FAIL(CODA_READDIR_STATS);
- return(ENOENT);
- }
-
- {
- /* If directory is not already open do an "internal open" on it. */
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ struct uio *uiop = ap->a_uio;
+ struct ucred *cred = ap->a_cred;
+ int *eofflag = ap->a_eofflag;
+ u_long **cookies = ap->a_cookies;
+ int *ncookies = ap->a_ncookies;
+ struct thread *td = ap->a_uio->uio_td;
+ /* upcall decl */
+ /* locals */
+ int error = 0;
int opened_internally = 0;
+
+ MARK_ENTRY(CODA_READDIR_STATS);
+ CODADEBUG(CODA_READDIR, myprintf(("coda_readdir(%p, %d, %lld, %d)\n",
+ (void *)uiop->uio_iov->iov_base, uiop->uio_resid,
+ (long long)uiop->uio_offset, uiop->uio_segflg)););
+
+ /*
+ * Check for readdir of control object.
+ */
+ if (IS_CTL_VP(vp)) {
+ MARK_INT_FAIL(CODA_READDIR_STATS);
+ return (ENOENT);
+ }
+
+ /*
+ * If directory is not already open do an "internal open" on it.
+ *
+ * XXX: Why would this happen? For files, there's memory mapping,
+ * execution, and other kernel access paths such as ktrace. For
+ * directories, it is less clear.
+ */
if (cp->c_ovp == NULL) {
- opened_internally = 1;
- MARK_INT_GEN(CODA_OPEN_STATS);
- error = VOP_OPEN(vp, FREAD, cred, td, NULL);
- printf("coda_readdir: Internally Opening %p\n", vp);
- if (error) {
- printf("coda_readdir: VOP_OPEN on container failed %d\n", error);
- return (error);
- }
+ opened_internally = 1;
+ MARK_INT_GEN(CODA_OPEN_STATS);
+ error = VOP_OPEN(vp, FREAD, cred, td, NULL);
+ printf("coda_readdir: Internally Opening %p\n", vp);
+ if (error) {
+ printf("coda_readdir: VOP_OPEN on container failed "
+ "%d\n", error);
+ return (error);
+ }
}
-
- /* Have UFS handle the call. */
- CODADEBUG(CODA_READDIR, myprintf(("indirect readdir: fid = %s, refcnt = %d\n", coda_f2s(&cp->c_fid), vp->v_usecount)); )
+
+ /*
+ * Have UFS handle the call.
+ */
+ CODADEBUG(CODA_READDIR, myprintf(("indirect readdir: fid = %s, "
+ "refcnt = %d\n", coda_f2s(&cp->c_fid), vp->v_usecount)););
vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_READDIR(cp->c_ovp, uiop, cred, eofflag, ncookies,
- cookies);
+ cookies);
VOP_UNLOCK(cp->c_ovp, 0);
-
if (error)
- MARK_INT_FAIL(CODA_READDIR_STATS);
+ MARK_INT_FAIL(CODA_READDIR_STATS);
else
- MARK_INT_SAT(CODA_READDIR_STATS);
-
- /* Do an "internal close" if necessary. */
+ MARK_INT_SAT(CODA_READDIR_STATS);
+
+ /*
+ * Do an "internal close" if necessary.
+ */
if (opened_internally) {
- MARK_INT_GEN(CODA_CLOSE_STATS);
- (void)VOP_CLOSE(vp, FREAD, cred, td);
+ MARK_INT_GEN(CODA_CLOSE_STATS);
+ (void)VOP_CLOSE(vp, FREAD, cred, td);
}
- }
-
- return(error);
+ return (error);
}
int
coda_reclaim(struct vop_reclaim_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
-/* upcall decl */
-/* locals */
-
-/*
- * Forced unmount/flush will let vnodes with non zero use be destroyed!
- */
- ENTRY;
-
- if (IS_UNMOUNTING(cp)) {
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ /* upcall decl */
+ /* locals */
+
+ /*
+ * Forced unmount/flush will let vnodes with non-zero use be
+ * destroyed!
+ */
+ ENTRY;
+
+ if (IS_UNMOUNTING(cp)) {
#ifdef DEBUG
- if (VTOC(vp)->c_ovp) {
- if (IS_UNMOUNTING(cp))
- printf("coda_reclaim: c_ovp not void: vp %p, cp %p\n", vp, cp);
- }
+ if (VTOC(vp)->c_ovp) {
+ if (IS_UNMOUNTING(cp))
+ printf("coda_reclaim: c_ovp not void: vp "
+ "%p, cp %p\n", vp, cp);
+ }
#endif
- } else {
+ } else {
#ifdef OLD_DIAGNOSTIC
- if (vrefcnt(vp) != 0)
- print("coda_reclaim: pushing active %p\n", vp);
- if (VTOC(vp)->c_ovp) {
- panic("coda_reclaim: c_ovp not void");
- }
+ if (vrefcnt(vp) != 0)
+ print("coda_reclaim: pushing active %p\n", vp);
+ if (VTOC(vp)->c_ovp)
+ panic("coda_reclaim: c_ovp not void");
#endif
- }
- cache_purge(vp);
- coda_free(VTOC(vp));
- vp->v_data = NULL;
- vp->v_object = NULL;
- return (0);
+ }
+ cache_purge(vp);
+ coda_free(VTOC(vp));
+ vp->v_data = NULL;
+ vp->v_object = NULL;
+ return (0);
}
int
coda_lock(struct vop_lock1_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
-/* upcall decl */
-/* locals */
-
- ENTRY;
-
- if ((ap->a_flags & LK_INTERLOCK) == 0) {
- VI_LOCK(vp);
- ap->a_flags |= LK_INTERLOCK;
- }
-
- if (coda_lockdebug) {
- myprintf(("Attempting lock on %s\n",
- coda_f2s(&cp->c_fid)));
- }
-
- return (vop_stdlock(ap));
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ /* upcall decl */
+ /* locals */
+
+ ENTRY;
+ if ((ap->a_flags & LK_INTERLOCK) == 0) {
+ VI_LOCK(vp);
+ ap->a_flags |= LK_INTERLOCK;
+ }
+ if (coda_lockdebug)
+ myprintf(("Attempting lock on %s\n", coda_f2s(&cp->c_fid)));
+ return (vop_stdlock(ap));
}
int
coda_unlock(struct vop_unlock_args *ap)
{
-/* true args */
- struct vnode *vp = ap->a_vp;
- struct cnode *cp = VTOC(vp);
-/* upcall decl */
-/* locals */
-
- ENTRY;
- if (coda_lockdebug) {
- myprintf(("Attempting unlock on %s\n",
- coda_f2s(&cp->c_fid)));
- }
-
- return (vop_stdunlock(ap));
+ /* true args */
+ struct vnode *vp = ap->a_vp;
+ struct cnode *cp = VTOC(vp);
+ /* upcall decl */
+ /* locals */
+
+ ENTRY;
+ if (coda_lockdebug)
+ myprintf(("Attempting unlock on %s\n",
+ coda_f2s(&cp->c_fid)));
+ return (vop_stdunlock(ap));
}
int
coda_islocked(struct vop_islocked_args *ap)
{
-/* true args */
- ENTRY;
+ /* true args */
- return (vop_stdislocked(ap));
+ ENTRY;
+ return (vop_stdislocked(ap));
}
static void
coda_print_vattr(struct vattr *attr)
{
- char *typestr;
-
- switch (attr->va_type) {
- case VNON:
- typestr = "VNON";
- break;
- case VREG:
- typestr = "VREG";
- break;
- case VDIR:
- typestr = "VDIR";
- break;
- case VBLK:
- typestr = "VBLK";
- break;
- case VCHR:
- typestr = "VCHR";
- break;
- case VLNK:
- typestr = "VLNK";
- break;
- case VSOCK:
- typestr = "VSCK";
- break;
- case VFIFO:
- typestr = "VFFO";
- break;
- case VBAD:
- typestr = "VBAD";
- break;
- default:
- typestr = "????";
- break;
- }
-
-
- myprintf(("attr: type %s mode %d uid %d gid %d fsid %d rdev %d\n",
- typestr, (int)attr->va_mode, (int)attr->va_uid,
- (int)attr->va_gid, (int)attr->va_fsid, (int)attr->va_rdev));
-
- myprintf((" fileid %d nlink %d size %d blocksize %d bytes %d\n",
- (int)attr->va_fileid, (int)attr->va_nlink,
- (int)attr->va_size,
- (int)attr->va_blocksize,(int)attr->va_bytes));
- myprintf((" gen %ld flags %ld vaflags %d\n",
- attr->va_gen, attr->va_flags, attr->va_vaflags));
- myprintf((" atime sec %d nsec %d\n",
- (int)attr->va_atime.tv_sec, (int)attr->va_atime.tv_nsec));
- myprintf((" mtime sec %d nsec %d\n",
- (int)attr->va_mtime.tv_sec, (int)attr->va_mtime.tv_nsec));
- myprintf((" ctime sec %d nsec %d\n",
- (int)attr->va_ctime.tv_sec, (int)attr->va_ctime.tv_nsec));
+ char *typestr;
+
+ switch (attr->va_type) {
+ case VNON:
+ typestr = "VNON";
+ break;
+
+ case VREG:
+ typestr = "VREG";
+ break;
+
+ case VDIR:
+ typestr = "VDIR";
+ break;
+
+ case VBLK:
+ typestr = "VBLK";
+ break;
+
+ case VCHR:
+ typestr = "VCHR";
+ break;
+
+ case VLNK:
+ typestr = "VLNK";
+ break;
+
+ case VSOCK:
+ typestr = "VSCK";
+ break;
+
+ case VFIFO:
+ typestr = "VFFO";
+ break;
+
+ case VBAD:
+ typestr = "VBAD";
+ break;
+
+ default:
+ typestr = "????";
+ break;
+ }
+ myprintf(("attr: type %s mode %d uid %d gid %d fsid %d rdev %d\n",
+ typestr, (int)attr->va_mode, (int)attr->va_uid,
+ (int)attr->va_gid, (int)attr->va_fsid, (int)attr->va_rdev));
+ myprintf((" fileid %d nlink %d size %d blocksize %d bytes %d\n",
+ (int)attr->va_fileid, (int)attr->va_nlink, (int)attr->va_size,
+ (int)attr->va_blocksize,(int)attr->va_bytes));
+ myprintf((" gen %ld flags %ld vaflags %d\n", attr->va_gen,
+ attr->va_flags, attr->va_vaflags));
+ myprintf((" atime sec %d nsec %d\n", (int)attr->va_atime.tv_sec,
+ (int)attr->va_atime.tv_nsec));
+ myprintf((" mtime sec %d nsec %d\n", (int)attr->va_mtime.tv_sec,
+ (int)attr->va_mtime.tv_nsec));
+ myprintf((" ctime sec %d nsec %d\n", (int)attr->va_ctime.tv_sec,
+ (int)attr->va_ctime.tv_nsec));
}
-/* How to print a ucred */
+/*
+ * How to print a ucred.
+ */
void
coda_print_cred(struct ucred *cred)
{
-
int i;
myprintf(("ref %d\tuid %d\n",cred->cr_ref,cred->cr_uid));
-
for (i=0; i < cred->cr_ngroups; i++)
myprintf(("\tgroup %d: (%d)\n",i,cred->cr_groups[i]));
myprintf(("\n"));
-
}
/*
- * Return a vnode for the given fid.
- * If no cnode exists for this fid create one and put it
- * in a table hashed by coda_f2i(). If the cnode for
- * this fid is already in the table return it (ref count is
- * incremented by coda_find. The cnode will be flushed from the
- * table when coda_inactive calls coda_unsave.
+ * Return a vnode for the given fid. If no cnode exists for this fid create
+ * one and put it in a table hashed by coda_f2i(). If the cnode for this fid
+ * is already in the table return it (ref count is incremented by coda_find.
+ * The cnode will be flushed from the table when coda_inactive calls
+ * coda_unsave.
*/
struct cnode *
make_coda_node(CodaFid *fid, struct mount *vfsp, short type)
{
- struct cnode *cp;
- int err;
-
- if ((cp = coda_find(fid)) == NULL) {
- struct vnode *vp;
-
- cp = coda_alloc();
- cp->c_fid = *fid;
-
- err = getnewvnode("coda", vfsp, &coda_vnodeops, &vp);
- if (err) {
- panic("coda: getnewvnode returned error %d\n", err);
- }
- err = insmntque1(vp, vfsp, NULL, NULL); /* XXX: Too early for mpsafe fs */
- if (err != 0)
- panic("coda: insmntque failed: error %d", err);
- vp->v_data = cp;
- vp->v_type = type;
- cp->c_vnode = vp;
- coda_save(cp);
-
- } else {
- vref(CTOV(cp));
- }
-
- return cp;
+ struct cnode *cp;
+ int err;
+
+ if ((cp = coda_find(fid)) == NULL) {
+ struct vnode *vp;
+
+ cp = coda_alloc();
+ cp->c_fid = *fid;
+ err = getnewvnode("coda", vfsp, &coda_vnodeops, &vp);
+ if (err)
+ panic("coda: getnewvnode returned error %d\n", err);
+
+ /*
+ * XXX: Too early for mpsafe fs.
+ */
+ err = insmntque1(vp, vfsp, NULL, NULL);
+ if (err != 0)
+ panic("coda: insmntque failed: error %d", err);
+ vp->v_data = cp;
+ vp->v_type = type;
+ cp->c_vnode = vp;
+ coda_save(cp);
+ } else
+ vref(CTOV(cp));
+ return (cp);
}
int
@@ -1687,7 +1773,6 @@ coda_pathconf(struct vop_pathconf_args *ap)
retval = ap->a_retval;
error = 0;
-
switch (ap->a_name) {
case _PC_NAME_MAX:
*retval = CODA_MAXNAMLEN;
@@ -1699,6 +1784,5 @@ coda_pathconf(struct vop_pathconf_args *ap)
error = vop_stdpathconf(ap);
break;
}
-
return (error);
}
diff --git a/sys/fs/coda/coda_vnops.h b/sys/fs/coda/coda_vnops.h
index 45d49ef..386dd07 100644
--- a/sys/fs/coda/coda_vnops.h
+++ b/sys/fs/coda/coda_vnops.h
@@ -1,11 +1,11 @@
/*-
- *
+ *
* Coda: an Experimental Distributed File System
* Release 3.1
- *
+ *
* Copyright (c) 1987-1998 Carnegie Mellon University
* All Rights Reserved
- *
+ *
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
@@ -14,24 +14,23 @@
* that credit is given to Carnegie Mellon University in all documents
* and publicity pertaining to direct or indirect use of this code or its
* derivatives.
- *
+ *
* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
* ANY DERIVATIVE WORK.
- *
+ *
* Carnegie Mellon encourages users of this software to return any
* improvements or extensions that they make, and to grant Carnegie
* Mellon the rights to redistribute these changes without encumbrance.
- *
+ *
* @(#) src/sys/coda/coda_vnops.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
* $FreeBSD$
- *
*/
-/*
+/*
* Mach Operating System
* Copyright (c) 1990 Carnegie-Mellon University
* Copyright (c) 1989 Carnegie-Mellon University
@@ -42,42 +41,44 @@
/*
* This code was written for the Coda filesystem at Carnegie Mellon
* University. Contributers include David Steere, James Kistler, and
- * M. Satyanarayanan.
+ * M. Satyanarayanan.
*/
+#ifndef _CODA_VNOPS_H_
+#define _CODA_VNOPS_H_
+
+/*
+ * FreeBSD interfaces to the vnodeops.
+ */
+vop_open_t coda_open;
+vop_close_t coda_close;
+vop_read_t coda_read;
+vop_write_t coda_write;
+vop_ioctl_t coda_ioctl;
+vop_getattr_t coda_getattr;
+vop_setattr_t coda_setattr;
+vop_access_t coda_access;
+vop_readlink_t coda_readlink;
+vop_fsync_t coda_fsync;
+vop_inactive_t coda_inactive;
+vop_lookup_t coda_lookup;
+vop_create_t coda_create;
+vop_remove_t coda_remove;
+vop_link_t coda_link;
+vop_rename_t coda_rename;
+vop_mkdir_t coda_mkdir;
+vop_rmdir_t coda_rmdir;
+vop_symlink_t coda_symlink;
+vop_readdir_t coda_readdir;
+vop_strategy_t coda_strategy;
+vop_reclaim_t coda_reclaim;
+vop_lock1_t coda_lock;
+vop_unlock_t coda_unlock;
+vop_islocked_t coda_islocked;
+vop_pathconf_t coda_pathconf;
-/* FreeBSD interfaces to the vnodeops */
-vop_open_t coda_open;
-vop_close_t coda_close;
-vop_read_t coda_read;
-vop_write_t coda_write;
-vop_ioctl_t coda_ioctl;
-/* 1.3 int cfs_select(void *);*/
-vop_getattr_t coda_getattr;
-vop_setattr_t coda_setattr;
-vop_access_t coda_access;
-int coda_abortop(void *);
-vop_readlink_t coda_readlink;
-vop_fsync_t coda_fsync;
-vop_inactive_t coda_inactive;
-vop_lookup_t coda_lookup;
-vop_create_t coda_create;
-vop_remove_t coda_remove;
-vop_link_t coda_link;
-vop_rename_t coda_rename;
-vop_mkdir_t coda_mkdir;
-vop_rmdir_t coda_rmdir;
-vop_symlink_t coda_symlink;
-vop_readdir_t coda_readdir;
-vop_strategy_t coda_strategy;
-vop_reclaim_t coda_reclaim;
-vop_lock1_t coda_lock;
-vop_unlock_t coda_unlock;
-vop_islocked_t coda_islocked;
-int coda_vop_error(void *);
-vop_pathconf_t coda_pathconf;
+int coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw,
+ int ioflag, struct ucred *cred, struct thread *td);
+void coda_print_cred(struct ucred *cred);
-int coda_rdwr(struct vnode *vp, struct uio *uiop, enum uio_rw rw,
- int ioflag, struct ucred *cred, struct thread *td);
-int coda_grab_vnode(struct cdev *dev, ino_t ino, struct vnode **vpp);
-void coda_print_cred(struct ucred *cred);
+#endif /* !_CODA_VNOPS_H_ */
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