diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vfs.h')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_vfs.h | 167 |
1 files changed, 87 insertions, 80 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h index 841200c03092..91fc2c4b3353 100644 --- a/fs/xfs/linux-2.6/xfs_vfs.h +++ b/fs/xfs/linux-2.6/xfs_vfs.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. + * Copyright (c) 2000-2006 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or @@ -21,42 +21,40 @@ #include <linux/vfs.h> #include "xfs_fs.h" +struct bhv_vfs; +struct bhv_vnode; + struct fid; -struct vfs; struct cred; -struct vnode; -struct kstatfs; struct seq_file; struct super_block; struct xfs_mount_args; -typedef struct kstatfs xfs_statfs_t; +typedef struct kstatfs bhv_statvfs_t; -typedef struct vfs_sync_work { +typedef struct bhv_vfs_sync_work { struct list_head w_list; - struct vfs *w_vfs; + struct bhv_vfs *w_vfs; void *w_data; /* syncer routine argument */ - void (*w_syncer)(struct vfs *, void *); -} vfs_sync_work_t; + void (*w_syncer)(struct bhv_vfs *, void *); +} bhv_vfs_sync_work_t; -typedef struct vfs { +typedef struct bhv_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 super_block *vfs_super; /* generic superblock pointer */ struct task_struct *vfs_sync_task; /* generalised sync thread */ - vfs_sync_work_t vfs_sync_work; /* work item for VFS_SYNC */ + bhv_vfs_sync_work_t vfs_sync_work; /* work item for VFS_SYNC */ struct list_head vfs_sync_list; /* sync thread work item list */ spinlock_t vfs_sync_lock; /* work item list lock */ - int vfs_sync_seq; /* sync thread generation no. */ + int vfs_sync_seq; /* sync thread generation no. */ wait_queue_head_t vfs_wait_single_sync_task; -} vfs_t; - -#define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */ +} bhv_vfs_t; -#define bhvtovfs(bdp) ( (struct vfs *)BHV_VOBJ(bdp) ) -#define bhvtovfsops(bdp) ( (struct vfsops *)BHV_OPS(bdp) ) +#define bhvtovfs(bdp) ( (struct bhv_vfs *)BHV_VOBJ(bdp) ) +#define bhvtovfsops(bdp) ( (struct bhv_vfsops *)BHV_OPS(bdp) ) #define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh ) #define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) ) @@ -71,7 +69,7 @@ typedef enum { VFS_BHV_QM, /* quota manager */ VFS_BHV_IO, /* IO path */ VFS_BHV_END /* housekeeping end-of-range */ -} vfs_bhv_t; +} bhv_vfs_type_t; #define VFS_POSITION_XFS (BHV_POSITION_BASE) #define VFS_POSITION_DM (VFS_POSITION_BASE+10) @@ -81,8 +79,9 @@ typedef enum { #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_32BITINODES 0x0008 /* do not use inums above 32 bits */ -#define VFS_END 0x0008 /* max flag */ +#define VFS_UMOUNT 0x0008 /* unmount in progress */ +#define VFS_32BITINODES 0x0010 /* do not use inums above 32 bits */ +#define VFS_END 0x0010 /* max flag */ #define SYNC_ATTR 0x0001 /* sync attributes */ #define SYNC_CLOSE 0x0002 /* close file system down */ @@ -92,7 +91,14 @@ typedef enum { #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 SYNC_QUIESCE 0x0100 /* quiesce filesystem for a snapshot */ +#define SYNC_QUIESCE 0x0100 /* quiesce fileystem for a snapshot */ + +#define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ +#define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ +#define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ +#define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ +#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ +#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ typedef int (*vfs_mount_t)(bhv_desc_t *, struct xfs_mount_args *, struct cred *); @@ -102,18 +108,19 @@ typedef int (*vfs_showargs_t)(bhv_desc_t *, struct seq_file *); typedef int (*vfs_unmount_t)(bhv_desc_t *, int, struct cred *); typedef int (*vfs_mntupdate_t)(bhv_desc_t *, int *, struct xfs_mount_args *); -typedef int (*vfs_root_t)(bhv_desc_t *, struct vnode **); -typedef int (*vfs_statvfs_t)(bhv_desc_t *, xfs_statfs_t *, struct vnode *); +typedef int (*vfs_root_t)(bhv_desc_t *, struct bhv_vnode **); +typedef int (*vfs_statvfs_t)(bhv_desc_t *, bhv_statvfs_t *, + struct bhv_vnode *); typedef int (*vfs_sync_t)(bhv_desc_t *, int, struct cred *); -typedef int (*vfs_vget_t)(bhv_desc_t *, struct vnode **, struct fid *); +typedef int (*vfs_vget_t)(bhv_desc_t *, struct bhv_vnode **, struct fid *); typedef int (*vfs_dmapiops_t)(bhv_desc_t *, caddr_t); typedef int (*vfs_quotactl_t)(bhv_desc_t *, int, int, caddr_t); typedef void (*vfs_init_vnode_t)(bhv_desc_t *, - struct vnode *, bhv_desc_t *, int); + struct bhv_vnode *, bhv_desc_t *, int); typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int); typedef void (*vfs_freeze_t)(bhv_desc_t *); -typedef struct vfsops { +typedef struct bhv_vfsops { bhv_position_t vf_position; /* behavior chain position */ vfs_mount_t vfs_mount; /* mount file system */ vfs_parseargs_t vfs_parseargs; /* parse mount options */ @@ -129,82 +136,82 @@ typedef struct vfsops { vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */ vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */ vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */ -} vfsops_t; +} bhv_vfsops_t; /* - * VFS's. Operates on vfs structure pointers (starts at bhv head). + * Virtual filesystem operations, operating from head bhv. */ -#define VHEAD(v) ((v)->vfs_fbhv) -#define VFS_MOUNT(v, ma,cr, rv) ((rv) = vfs_mount(VHEAD(v), ma,cr)) -#define VFS_PARSEARGS(v, o,ma,f, rv) ((rv) = vfs_parseargs(VHEAD(v), o,ma,f)) -#define VFS_SHOWARGS(v, m, rv) ((rv) = vfs_showargs(VHEAD(v), m)) -#define VFS_UNMOUNT(v, f, cr, rv) ((rv) = vfs_unmount(VHEAD(v), f,cr)) -#define VFS_MNTUPDATE(v, fl, args, rv) ((rv) = vfs_mntupdate(VHEAD(v), fl, args)) -#define VFS_ROOT(v, vpp, rv) ((rv) = vfs_root(VHEAD(v), vpp)) -#define VFS_STATVFS(v, sp,vp, rv) ((rv) = vfs_statvfs(VHEAD(v), sp,vp)) -#define VFS_SYNC(v, flag,cr, rv) ((rv) = vfs_sync(VHEAD(v), flag,cr)) -#define VFS_VGET(v, vpp,fidp, rv) ((rv) = vfs_vget(VHEAD(v), vpp,fidp)) -#define VFS_DMAPIOPS(v, p, rv) ((rv) = vfs_dmapiops(VHEAD(v), p)) -#define VFS_QUOTACTL(v, c,id,p, rv) ((rv) = vfs_quotactl(VHEAD(v), c,id,p)) -#define VFS_INIT_VNODE(v, vp,b,ul) ( vfs_init_vnode(VHEAD(v), vp,b,ul) ) -#define VFS_FORCE_SHUTDOWN(v, fl,f,l) ( vfs_force_shutdown(VHEAD(v), fl,f,l) ) -#define VFS_FREEZE(v) ( vfs_freeze(VHEAD(v)) ) +#define VFSHEAD(v) ((v)->vfs_bh.bh_first) +#define bhv_vfs_mount(v, ma,cr) vfs_mount(VFSHEAD(v), ma,cr) +#define bhv_vfs_parseargs(v, o,ma,f) vfs_parseargs(VFSHEAD(v), o,ma,f) +#define bhv_vfs_showargs(v, m) vfs_showargs(VFSHEAD(v), m) +#define bhv_vfs_unmount(v, f,cr) vfs_unmount(VFSHEAD(v), f,cr) +#define bhv_vfs_mntupdate(v, fl,args) vfs_mntupdate(VFSHEAD(v), fl,args) +#define bhv_vfs_root(v, vpp) vfs_root(VFSHEAD(v), vpp) +#define bhv_vfs_statvfs(v, sp,vp) vfs_statvfs(VFSHEAD(v), sp,vp) +#define bhv_vfs_sync(v, flag,cr) vfs_sync(VFSHEAD(v), flag,cr) +#define bhv_vfs_vget(v, vpp,fidp) vfs_vget(VFSHEAD(v), vpp,fidp) +#define bhv_vfs_dmapiops(v, p) vfs_dmapiops(VFSHEAD(v), p) +#define bhv_vfs_quotactl(v, c,id,p) vfs_quotactl(VFSHEAD(v), c,id,p) +#define bhv_vfs_init_vnode(v, vp,b,ul) vfs_init_vnode(VFSHEAD(v), vp,b,ul) +#define bhv_vfs_force_shutdown(v,u,f,l) vfs_force_shutdown(VFSHEAD(v), u,f,l) +#define bhv_vfs_freeze(v) vfs_freeze(VFSHEAD(v)) /* - * PVFS's. Operates on behavior descriptor pointers. + * Virtual filesystem operations, operating from next bhv. */ -#define PVFS_MOUNT(b, ma,cr, rv) ((rv) = vfs_mount(b, ma,cr)) -#define PVFS_PARSEARGS(b, o,ma,f, rv) ((rv) = vfs_parseargs(b, o,ma,f)) -#define PVFS_SHOWARGS(b, m, rv) ((rv) = vfs_showargs(b, m)) -#define PVFS_UNMOUNT(b, f,cr, rv) ((rv) = vfs_unmount(b, f,cr)) -#define PVFS_MNTUPDATE(b, fl, args, rv) ((rv) = vfs_mntupdate(b, fl, args)) -#define PVFS_ROOT(b, vpp, rv) ((rv) = vfs_root(b, vpp)) -#define PVFS_STATVFS(b, sp,vp, rv) ((rv) = vfs_statvfs(b, sp,vp)) -#define PVFS_SYNC(b, flag,cr, rv) ((rv) = vfs_sync(b, flag,cr)) -#define PVFS_VGET(b, vpp,fidp, rv) ((rv) = vfs_vget(b, vpp,fidp)) -#define PVFS_DMAPIOPS(b, p, rv) ((rv) = vfs_dmapiops(b, p)) -#define PVFS_QUOTACTL(b, c,id,p, rv) ((rv) = vfs_quotactl(b, c,id,p)) -#define PVFS_INIT_VNODE(b, vp,b2,ul) ( vfs_init_vnode(b, vp,b2,ul) ) -#define PVFS_FORCE_SHUTDOWN(b, fl,f,l) ( vfs_force_shutdown(b, fl,f,l) ) -#define PVFS_FREEZE(b) ( vfs_freeze(b) ) +#define bhv_next_vfs_mount(b, ma,cr) vfs_mount(b, ma,cr) +#define bhv_next_vfs_parseargs(b, o,ma,f) vfs_parseargs(b, o,ma,f) +#define bhv_next_vfs_showargs(b, m) vfs_showargs(b, m) +#define bhv_next_vfs_unmount(b, f,cr) vfs_unmount(b, f,cr) +#define bhv_next_vfs_mntupdate(b, fl,args) vfs_mntupdate(b, fl, args) +#define bhv_next_vfs_root(b, vpp) vfs_root(b, vpp) +#define bhv_next_vfs_statvfs(b, sp,vp) vfs_statvfs(b, sp,vp) +#define bhv_next_vfs_sync(b, flag,cr) vfs_sync(b, flag,cr) +#define bhv_next_vfs_vget(b, vpp,fidp) vfs_vget(b, vpp,fidp) +#define bhv_next_vfs_dmapiops(b, p) vfs_dmapiops(b, p) +#define bhv_next_vfs_quotactl(b, c,id,p) vfs_quotactl(b, c,id,p) +#define bhv_next_vfs_init_vnode(b, vp,b2,ul) vfs_init_vnode(b, vp,b2,ul) +#define bhv_next_force_shutdown(b, fl,f,l) vfs_force_shutdown(b, fl,f,l) +#define bhv_next_vfs_freeze(b) vfs_freeze(b) extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *); extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int); extern int vfs_showargs(bhv_desc_t *, struct seq_file *); extern int vfs_unmount(bhv_desc_t *, int, struct cred *); extern int vfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *); -extern int vfs_root(bhv_desc_t *, struct vnode **); -extern int vfs_statvfs(bhv_desc_t *, xfs_statfs_t *, struct vnode *); +extern int vfs_root(bhv_desc_t *, struct bhv_vnode **); +extern int vfs_statvfs(bhv_desc_t *, bhv_statvfs_t *, struct bhv_vnode *); extern int vfs_sync(bhv_desc_t *, int, struct cred *); -extern int vfs_vget(bhv_desc_t *, struct vnode **, struct fid *); +extern int vfs_vget(bhv_desc_t *, struct bhv_vnode **, struct fid *); extern int vfs_dmapiops(bhv_desc_t *, caddr_t); extern int vfs_quotactl(bhv_desc_t *, int, int, caddr_t); -extern void vfs_init_vnode(bhv_desc_t *, struct vnode *, bhv_desc_t *, int); +extern void vfs_init_vnode(bhv_desc_t *, struct bhv_vnode *, bhv_desc_t *, int); extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int); extern void vfs_freeze(bhv_desc_t *); -typedef struct bhv_vfsops { - struct vfsops bhv_common; +#define vfs_test_for_freeze(vfs) ((vfs)->vfs_super->s_frozen) +#define vfs_wait_for_freeze(vfs,l) vfs_check_frozen((vfs)->vfs_super, (l)) + +typedef struct bhv_module_vfsops { + struct bhv_vfsops bhv_common; void * bhv_custom; -} bhv_vfsops_t; +} bhv_module_vfsops_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 ) +#define vfs_bhv_lookup(v, id) (bhv_lookup_range(&(v)->vfs_bh, (id), (id))) +#define vfs_bhv_custom(b) (((bhv_module_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 vfs_t *vfs_allocate(struct super_block *); -extern vfs_t *vfs_from_sb(struct super_block *); -extern void vfs_deallocate(vfs_t *); -extern void vfs_insertops(vfs_t *, bhv_vfsops_t *); -extern void vfs_insertbhv(vfs_t *, bhv_desc_t *, vfsops_t *, void *); +extern bhv_vfs_t *vfs_allocate(struct super_block *); +extern bhv_vfs_t *vfs_from_sb(struct super_block *); +extern void vfs_deallocate(bhv_vfs_t *); +extern void vfs_insertbhv(bhv_vfs_t *, bhv_desc_t *, bhv_vfsops_t *, void *); -extern void bhv_insert_all_vfsops(struct vfs *); -extern void bhv_remove_all_vfsops(struct vfs *, int); -extern void bhv_remove_vfsops(struct vfs *, int); +extern void vfs_insertops(bhv_vfs_t *, bhv_module_vfsops_t *); -#define fs_frozen(vfsp) ((vfsp)->vfs_super->s_frozen) -#define fs_check_frozen(vfsp, level) \ - vfs_check_frozen(vfsp->vfs_super, level); +extern void bhv_insert_all_vfsops(struct bhv_vfs *); +extern void bhv_remove_all_vfsops(struct bhv_vfs *, int); +extern void bhv_remove_vfsops(struct bhv_vfs *, int); #endif /* __XFS_VFS_H__ */ |