diff options
Diffstat (limited to 'sys/cfs/cfs_psdev.c')
| -rw-r--r-- | sys/cfs/cfs_psdev.c | 141 |
1 files changed, 42 insertions, 99 deletions
diff --git a/sys/cfs/cfs_psdev.c b/sys/cfs/cfs_psdev.c index 47b4754..3c7c724 100644 --- a/sys/cfs/cfs_psdev.c +++ b/sys/cfs/cfs_psdev.c @@ -1,35 +1,35 @@ /* - - 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 -software, derivative works or modified versions, and any portions -thereof, and that both notices appear in supporting documentation, and -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. -*/ - -/* $Header: /afs/cs/project/coda-src/cvs/coda/kernel-src/vfs/freebsd/cfs/cfs_psdev.c,v 1.9 1998/08/28 18:12:17 rvb Exp $ */ - -#define CTL_C + * + * 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 + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation, and + * 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/cfs_psdev.c,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $ + * $Id: $ + * + */ /* * Mach Operating System @@ -43,20 +43,19 @@ Mellon the rights to redistribute these changes without encumbrance. * University. Contributers include David Steere, James Kistler, and * M. Satyanarayanan. */ -/* ************************************************** */ -/* These routines define the psuedo device for communication between +/* + * 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 */ -/* - * Renamed to cfs_psdev: pseudo-device driver. - */ - /* * HISTORY * $Log: cfs_psdev.c,v $ + * Revision 1.1.1.1 1998/08/29 21:14:52 rvb + * Very Preliminary Coda + * * Revision 1.9 1998/08/28 18:12:17 rvb * Now it also works on FreeBSD -current. This code will be * committed to the FreeBSD -current and NetBSD -current @@ -153,40 +152,28 @@ Mellon the rights to redistribute these changes without encumbrance. extern int cfsnc_initialized; /* Set if cache has been initialized */ #include <vcfs.h> + #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> -#include <sys/malloc.h> #include <sys/proc.h> +#include <sys/malloc.h> #include <sys/mount.h> #include <sys/file.h> -#ifdef __FreeBSD_version #include <sys/ioccom.h> -#else -#include <sys/ioctl.h> -#endif -#ifdef NetBSD1_3 -#include <sys/poll.h> -#endif -#ifdef __FreeBSD_version #include <sys/poll.h> -#else -#include <sys/select.h> -#endif +#include <sys/conf.h> #include <cfs/coda.h> #include <cfs/cnode.h> #include <cfs/cfsnc.h> #include <cfs/cfsio.h> +#define CTL_C + int cfs_psdev_print_entry = 0; -#ifdef __GNUC__ -#define ENTRY \ - if(cfs_psdev_print_entry) myprintf(("Entered %s\n",__FUNCTION__)) -#else -#define ENTRY -#endif +#define ENTRY if(cfs_psdev_print_entry) myprintf(("Entered %s\n",__FUNCTION__)) void vcfsattach(int n); int vc_nb_open(dev_t dev, int flag, int mode, struct proc *p); @@ -194,11 +181,7 @@ int vc_nb_close (dev_t dev, int flag, int mode, struct proc *p); int vc_nb_read(dev_t dev, struct uio *uiop, int flag); int vc_nb_write(dev_t dev, struct uio *uiop, int flag); int vc_nb_ioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p); -#if defined(NetBSD1_3) || defined(__FreeBSD_version) int vc_nb_poll(dev_t dev, int events, struct proc *p); -#else -int vc_nb_select(dev_t dev, int flag, struct proc *p); -#endif struct vmsg { struct queue vm_chain; @@ -222,9 +205,6 @@ vcfsattach(n) { } -/* - * These functions are written for NetBSD. - */ int vc_nb_open(dev, flag, mode, p) dev_t dev; @@ -289,14 +269,6 @@ vc_nb_close (dev, flag, mode, p) if (mi->mi_rootvp) { /* Let unmount know this is for real */ VTOC(mi->mi_rootvp)->c_flags |= C_UNMOUNTING; -#ifdef NEW_LOCKMGR -#ifdef __FreeBSD_version - /* dounmount is different ... probably wrong ... */ -#else - if (vfs_busy(mi->mi_vfsp, 0, 0)) - return (EBUSY); -#endif -#endif cfs_unmounting(mi->mi_vfsp); err = dounmount(mi->mi_vfsp, flag, p); if (err) @@ -523,7 +495,6 @@ vc_nb_ioctl(dev, cmd, addr, flag, p) } } -#if defined(NetBSD1_3) || defined(__FreeBSD_version) int vc_nb_poll(dev, events, p) dev_t dev; @@ -551,33 +522,6 @@ vc_nb_poll(dev, events, p) return(0); } -#else -int -vc_nb_select(dev, flag, p) - dev_t dev; - int flag; - struct proc *p; -{ - register struct vcomm *vcp; - - ENTRY; - - if (minor(dev) >= NVCFS || minor(dev) < 0) - return(ENXIO); - - vcp = &cfs_mnttbl[minor(dev)].mi_vcomm; - - if (flag != FREAD) - return(0); - - if (!EMPTY(vcp->vc_requests)) - return(1); - - selrecord(p, &(vcp->vc_selproc)); - - return(0); -} -#endif /* * Statistics @@ -593,7 +537,6 @@ struct cfs_clstat cfs_clstat; * (e.g. kill -9). */ -/* If you want this to be interruptible, set this to > PZERO */ int cfscall_sleep = PZERO - 1; #ifdef CTL_C int cfs_pcatch = PCATCH; |
