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Diffstat (limited to 'sys/gnu/fs/xfs/FreeBSD/xfs_vfs.h')
| -rw-r--r-- | sys/gnu/fs/xfs/FreeBSD/xfs_vfs.h | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/sys/gnu/fs/xfs/FreeBSD/xfs_vfs.h b/sys/gnu/fs/xfs/FreeBSD/xfs_vfs.h new file mode 100644 index 0000000..c16ddcd --- /dev/null +++ b/sys/gnu/fs/xfs/FreeBSD/xfs_vfs.h @@ -0,0 +1,229 @@ +/* + * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * Further, this software is distributed without any warranty that it is + * free of the rightful claim of any third person regarding infringement + * or the like. Any license provided herein, whether implied or + * otherwise, applies only to this software file. Patent licenses, if + * any, provided herein do not apply to combinations of this program with + * other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, + * Mountain View, CA 94043, or: + * + * http://www.sgi.com + * + * For further information regarding this notice, see: + * + * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + */ +#ifndef __XFS_VFS_H__ +#define __XFS_VFS_H__ + +#include <sys/mount.h> +#include "xfs_fs.h" + +struct fid; +struct cred; +struct xfs_vnode; +struct statfs; +struct sbuf; +struct xfs_mount_args; +struct mount; + +typedef struct statfs xfs_statfs_t; + +typedef struct xfs_vfs { + u_int vfs_flag; /* flags */ + xfs_fsid_t vfs_fsid; /* file system ID */ + xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */ + bhv_head_t vfs_bh; /* head of vfs behavior chain */ + struct mount *vfs_mp; /* FreeBSD mount struct */ +} xfs_vfs_t; + +#define MNTTOXVFS(mp) ((struct xfs_vfs*)(mp)->mnt_data) +#define XVFSTOMNT(vfs) ((vfs)->vfs_mp) + +#define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */ + +#define bhvtovfs(bdp) ( (struct xfs_vfs *)BHV_VOBJ(bdp) ) +#define bhvtovfsops(bdp) ( (struct xvfsops *)BHV_OPS(bdp) ) +#define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh ) +#define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) ) + +#define VFS_POSITION_BASE BHV_POSITION_BASE /* chain bottom */ +#define VFS_POSITION_TOP BHV_POSITION_TOP /* chain top */ +#define VFS_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */ + +typedef enum { + VFS_BHV_UNKNOWN, /* not specified */ + VFS_BHV_XFS, /* xfs */ + VFS_BHV_DM, /* data migration */ + VFS_BHV_QM, /* quota manager */ + VFS_BHV_IO, /* IO path */ + VFS_BHV_END /* housekeeping end-of-range */ +} vfs_bhv_t; + +#define VFS_POSITION_XFS (BHV_POSITION_BASE) +#define VFS_POSITION_DM (VFS_POSITION_BASE+10) +#define VFS_POSITION_QM (VFS_POSITION_BASE+20) +#define VFS_POSITION_IO (VFS_POSITION_BASE+30) + +#define VFS_RDONLY 0x0001 /* read-only vfs */ +#define VFS_GRPID 0x0002 /* group-ID assigned from directory */ +#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */ +#define VFS_UMOUNT 0x0008 /* unmount in progress */ +#define VFS_END 0x0008 /* max flag */ + +#define SYNC_ATTR 0x0001 /* sync attributes */ +#define SYNC_CLOSE 0x0002 /* close file system down */ +#define SYNC_DELWRI 0x0004 /* look at delayed writes */ +#define SYNC_WAIT 0x0008 /* wait for i/o to complete */ +#define SYNC_BDFLUSH 0x0010 /* BDFLUSH is calling -- don't block */ +#define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */ +#define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */ +#define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */ + +#define IGET_NOALLOC 0x0001 /* vfs_get_inode may return NULL */ + +typedef int (*xvfs_mount_t)(bhv_desc_t *, + struct xfs_mount_args *, struct cred *); +typedef int (*xvfs_parseargs_t)(bhv_desc_t *, char *, + struct xfs_mount_args *, int); +typedef int (*xvfs_showargs_t)(bhv_desc_t *, struct sbuf *); +typedef int (*xvfs_unmount_t)(bhv_desc_t *, int, struct cred *); +typedef int (*xvfs_mntupdate_t)(bhv_desc_t *, int *, + struct xfs_mount_args *); +typedef int (*xvfs_root_t)(bhv_desc_t *, struct xfs_vnode **); +typedef int (*xvfs_statvfs_t)(bhv_desc_t *, xfs_statfs_t *, struct xfs_vnode *); +typedef int (*xvfs_sync_t)(bhv_desc_t *, int, struct cred *); +typedef int (*xvfs_vget_t)(bhv_desc_t *, struct xfs_vnode **, struct fid *); +typedef int (*xvfs_dmapiops_t)(bhv_desc_t *, caddr_t); +typedef int (*xvfs_quotactl_t)(bhv_desc_t *, int, int, caddr_t); +typedef void (*xvfs_init_vnode_t)(bhv_desc_t *, + struct xfs_vnode *, bhv_desc_t *, int); +typedef void (*xvfs_force_shutdown_t)(bhv_desc_t *, int, char *, int); +typedef struct inode * (*xvfs_get_inode_t)(bhv_desc_t *, xfs_ino_t, int); + +typedef struct xvfsops { + bhv_position_t xvfs_position; /* behavior chain position */ + xvfs_mount_t xvfs_mount; /* mount file system */ + xvfs_parseargs_t xvfs_parseargs; /* parse mount options */ + xvfs_showargs_t xvfs_showargs; /* unparse mount options */ + xvfs_unmount_t xvfs_unmount; /* unmount file system */ + xvfs_mntupdate_t xvfs_mntupdate; /* update file system options */ + xvfs_root_t xvfs_root; /* get root vnode */ + xvfs_statvfs_t xvfs_statvfs; /* file system statistics */ + xvfs_sync_t xvfs_sync; /* flush files */ + xvfs_vget_t xvfs_vget; /* get vnode from fid */ + xvfs_dmapiops_t xvfs_dmapiops; /* data migration */ + xvfs_quotactl_t xvfs_quotactl; /* disk quota */ + xvfs_get_inode_t xvfs_get_inode; /* bhv specific iget */ + xvfs_init_vnode_t xvfs_init_vnode; /* initialize a new vnode */ + xvfs_force_shutdown_t xvfs_force_shutdown; /* crash and burn */ +} xvfsops_t; + +/* + * VFS's. Operates on vfs structure pointers (starts at bhv head). + */ +#define VHEAD(v) ((v)->vfs_fbhv) +#define XVFS_MOUNT(v, ma,cr, rv) ((rv) = xvfs_mount(VHEAD(v), ma,cr)) +#define XVFS_PARSEARGS(v, o,ma,f, rv) ((rv) = xvfs_parseargs(VHEAD(v), o,ma,f)) +#define XVFS_SHOWARGS(v, m, rv) ((rv) = xvfs_showargs(VHEAD(v), m)) +#define XVFS_UNMOUNT(v, f, cr, rv) ((rv) = xvfs_unmount(VHEAD(v), f,cr)) +#define XVFS_MNTUPDATE(v, fl, args, rv) ((rv) = xvfs_mntupdate(VHEAD(v), fl, args)) +#define XVFS_ROOT(v, vpp, rv) ((rv) = xvfs_root(VHEAD(v), vpp)) +#define XVFS_STATVFS(v, sp,vp, rv) ((rv) = xvfs_statvfs(VHEAD(v), sp,vp)) +#define XVFS_SYNC(v, flag,cr, rv) ((rv) = xvfs_sync(VHEAD(v), flag,cr)) +#define XVFS_VGET(v, vpp,fidp, rv) ((rv) = xvfs_vget(VHEAD(v), vpp,fidp)) +#define XVFS_DMAPIOPS(v, p, rv) ((rv) = xvfs_dmapiops(VHEAD(v), p)) +#define XVFS_QUOTACTL(v, c,id,p, rv) ((rv) = xvfs_quotactl(VHEAD(v), c,id,p)) +#define XVFS_GET_INODE(v, ino, fl) ( xvfs_get_inode(VHEAD(v), ino,fl) ) +#define XVFS_INIT_VNODE(v, vp,b,ul) ( xvfs_init_vnode(VHEAD(v), vp,b,ul) ) +#define XVFS_FORCE_SHUTDOWN(v, fl,f,l) ( xvfs_force_shutdown(VHEAD(v), fl,f,l) ) + +/* + * PVFS's. Operates on behavior descriptor pointers. + */ +#define PVFS_MOUNT(b, ma,cr, rv) ((rv) = xvfs_mount(b, ma,cr)) +#define PVFS_PARSEARGS(b, o,ma,f, rv) ((rv) = xvfs_parseargs(b, o,ma,f)) +#define PVFS_SHOWARGS(b, m, rv) ((rv) = xvfs_showargs(b, m)) +#define PVFS_UNMOUNT(b, f,cr, rv) ((rv) = xvfs_unmount(b, f,cr)) +#define PVFS_MNTUPDATE(b, fl, args, rv) ((rv) = xvfs_mntupdate(b, fl, args)) +#define PVFS_ROOT(b, vpp, rv) ((rv) = xvfs_root(b, vpp)) +#define PVFS_STATVFS(b, sp,vp, rv) ((rv) = xvfs_statvfs(b, sp,vp)) +#define PVFS_SYNC(b, flag,cr, rv) ((rv) = xvfs_sync(b, flag,cr)) +#define PVFS_VGET(b, vpp,fidp, rv) ((rv) = xvfs_vget(b, vpp,fidp)) +#define PVFS_DMAPIOPS(b, p, rv) ((rv) = xvfs_dmapiops(b, p)) +#define PVFS_QUOTACTL(b, c,id,p, rv) ((rv) = xvfs_quotactl(b, c,id,p)) +#define PVFS_GET_INODE(b, ino,fl) ( xvfs_get_inode(b, ino,fl) ) +#define PVFS_INIT_VNODE(b, vp,b2,ul) ( xvfs_init_vnode(b, vp,b2,ul) ) +#define PVFS_FORCE_SHUTDOWN(b, fl,f,l) ( xvfs_force_shutdown(b, fl,f,l) ) + +extern int xvfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *); +extern int xvfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int); +extern int xvfs_showargs(bhv_desc_t *, struct sbuf *); +extern int xvfs_unmount(bhv_desc_t *, int, struct cred *); +extern int xvfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *); +extern int xvfs_root(bhv_desc_t *, struct xfs_vnode **); +extern int xvfs_statvfs(bhv_desc_t *, xfs_statfs_t *, struct xfs_vnode *); +extern int xvfs_sync(bhv_desc_t *, int, struct cred *); +extern int xvfs_vget(bhv_desc_t *, struct xfs_vnode **, struct fid *); +extern int xvfs_dmapiops(bhv_desc_t *, caddr_t); +extern int xvfs_quotactl(bhv_desc_t *, int, int, caddr_t); +extern struct inode *xvfs_get_inode(bhv_desc_t *, xfs_ino_t, int); +extern void xvfs_init_vnode(bhv_desc_t *, struct xfs_vnode *, bhv_desc_t *, int); +extern void xvfs_force_shutdown(bhv_desc_t *, int, char *, int); + +#define XFS_DMOPS "xfs_dm_operations" /* Data Migration */ +#define XFS_QMOPS "xfs_qm_operations" /* Quota Manager */ +#define XFS_IOOPS "xfs_io_operations" /* I/O subsystem */ +#define XFS_DM_MODULE "xfs_dmapi" +#define XFS_QM_MODULE "xfs_quota" +#define XFS_IO_MODULE "xfs_ioops" + +typedef struct bhv_vfsops { + struct xvfsops bhv_common; + void * bhv_custom; +} bhv_vfsops_t; + +typedef struct bhv_module { + bhv_desc_t bm_desc; + const char * bm_name; + bhv_vfsops_t * bm_ops; +} bhv_module_t; + +#define vfs_bhv_lookup(v, id) ( bhv_lookup_range(&(v)->vfs_bh, (id), (id)) ) +#define vfs_bhv_custom(b) ( ((bhv_vfsops_t *)BHV_OPS(b))->bhv_custom ) +#define vfs_bhv_set_custom(b,o) ( (b)->bhv_custom = (void *)(o)) +#define vfs_bhv_clr_custom(b) ( (b)->bhv_custom = NULL ) + +extern xfs_vfs_t *vfs_allocate(struct mount *); +extern void vfs_deallocate(xfs_vfs_t *); +extern void vfs_insertops(xfs_vfs_t *, bhv_vfsops_t *); +extern void vfs_insertbhv(xfs_vfs_t *, bhv_desc_t *, xvfsops_t *, void *); + +#define bhv_lookup_module(n,m) ( (m) ? \ + inter_module_get_request(n, m) : \ + inter_module_get(n) ) +#define bhv_remove_module(n) inter_module_put(n) +#define bhv_module_init(n,m,op) inter_module_register(n,m,op) +#define bhv_module_exit(n) inter_module_unregister(n) + +extern void bhv_insert_all_vfsops(struct xfs_vfs *); +extern void bhv_remove_all_vfsops(struct xfs_vfs *, int); +extern void bhv_remove_vfsops(struct xfs_vfs *, int); + +#endif /* __XFS_VFS_H__ */ |
