diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vfs.h')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_vfs.h | 126 |
1 files changed, 64 insertions, 62 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h index 2ca05043a0fd..55f0afd3e794 100644 --- a/fs/xfs/linux-2.6/xfs_vfs.h +++ b/fs/xfs/linux-2.6/xfs_vfs.h | |||
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | 3 | * All Rights Reserved. |
4 | * | 4 | * |
5 | * This program is free software; you can redistribute it and/or | 5 | * This program is free software; you can redistribute it and/or |
@@ -21,42 +21,42 @@ | |||
21 | #include <linux/vfs.h> | 21 | #include <linux/vfs.h> |
22 | #include "xfs_fs.h" | 22 | #include "xfs_fs.h" |
23 | 23 | ||
24 | struct bhv_vfs; | ||
24 | struct fid; | 25 | struct fid; |
25 | struct vfs; | ||
26 | struct cred; | 26 | struct cred; |
27 | struct vnode; | 27 | struct vnode; |
28 | struct kstatfs; | 28 | struct statfs; |
29 | struct seq_file; | 29 | struct seq_file; |
30 | struct super_block; | 30 | struct super_block; |
31 | struct xfs_mount_args; | 31 | struct xfs_mount_args; |
32 | 32 | ||
33 | typedef struct kstatfs xfs_statfs_t; | 33 | typedef struct kstatfs xfs_statfs_t; |
34 | 34 | ||
35 | typedef struct vfs_sync_work { | 35 | typedef struct bhv_vfs_sync_work { |
36 | struct list_head w_list; | 36 | struct list_head w_list; |
37 | struct vfs *w_vfs; | 37 | struct bhv_vfs *w_vfs; |
38 | void *w_data; /* syncer routine argument */ | 38 | void *w_data; /* syncer routine argument */ |
39 | void (*w_syncer)(struct vfs *, void *); | 39 | void (*w_syncer)(struct bhv_vfs *, void *); |
40 | } vfs_sync_work_t; | 40 | } bhv_vfs_sync_work_t; |
41 | 41 | ||
42 | typedef struct vfs { | 42 | typedef struct bhv_vfs { |
43 | u_int vfs_flag; /* flags */ | 43 | u_int vfs_flag; /* flags */ |
44 | xfs_fsid_t vfs_fsid; /* file system ID */ | 44 | xfs_fsid_t vfs_fsid; /* file system ID */ |
45 | xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */ | 45 | xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */ |
46 | bhv_head_t vfs_bh; /* head of vfs behavior chain */ | 46 | bhv_head_t vfs_bh; /* head of vfs behavior chain */ |
47 | struct super_block *vfs_super; /* generic superblock pointer */ | 47 | struct super_block *vfs_super; /* generic superblock pointer */ |
48 | struct task_struct *vfs_sync_task; /* generalised sync thread */ | 48 | struct task_struct *vfs_sync_task; /* generalised sync thread */ |
49 | vfs_sync_work_t vfs_sync_work; /* work item for VFS_SYNC */ | 49 | bhv_vfs_sync_work_t vfs_sync_work; /* work item for VFS_SYNC */ |
50 | struct list_head vfs_sync_list; /* sync thread work item list */ | 50 | struct list_head vfs_sync_list; /* sync thread work item list */ |
51 | spinlock_t vfs_sync_lock; /* work item list lock */ | 51 | spinlock_t vfs_sync_lock; /* work item list lock */ |
52 | int vfs_sync_seq; /* sync thread generation no. */ | 52 | int vfs_sync_seq; /* sync thread generation no. */ |
53 | wait_queue_head_t vfs_wait_single_sync_task; | 53 | wait_queue_head_t vfs_wait_single_sync_task; |
54 | } vfs_t; | 54 | } bhv_vfs_t; |
55 | 55 | ||
56 | #define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */ | 56 | #define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */ |
57 | 57 | ||
58 | #define bhvtovfs(bdp) ( (struct vfs *)BHV_VOBJ(bdp) ) | 58 | #define bhvtovfs(bdp) ( (struct bhv_vfs *)BHV_VOBJ(bdp) ) |
59 | #define bhvtovfsops(bdp) ( (struct vfsops *)BHV_OPS(bdp) ) | 59 | #define bhvtovfsops(bdp) ( (struct bhv_vfsops *)BHV_OPS(bdp) ) |
60 | #define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh ) | 60 | #define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh ) |
61 | #define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) ) | 61 | #define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) ) |
62 | 62 | ||
@@ -71,7 +71,7 @@ typedef enum { | |||
71 | VFS_BHV_QM, /* quota manager */ | 71 | VFS_BHV_QM, /* quota manager */ |
72 | VFS_BHV_IO, /* IO path */ | 72 | VFS_BHV_IO, /* IO path */ |
73 | VFS_BHV_END /* housekeeping end-of-range */ | 73 | VFS_BHV_END /* housekeeping end-of-range */ |
74 | } vfs_bhv_t; | 74 | } bhv_vfs_type_t; |
75 | 75 | ||
76 | #define VFS_POSITION_XFS (BHV_POSITION_BASE) | 76 | #define VFS_POSITION_XFS (BHV_POSITION_BASE) |
77 | #define VFS_POSITION_DM (VFS_POSITION_BASE+10) | 77 | #define VFS_POSITION_DM (VFS_POSITION_BASE+10) |
@@ -81,8 +81,9 @@ typedef enum { | |||
81 | #define VFS_RDONLY 0x0001 /* read-only vfs */ | 81 | #define VFS_RDONLY 0x0001 /* read-only vfs */ |
82 | #define VFS_GRPID 0x0002 /* group-ID assigned from directory */ | 82 | #define VFS_GRPID 0x0002 /* group-ID assigned from directory */ |
83 | #define VFS_DMI 0x0004 /* filesystem has the DMI enabled */ | 83 | #define VFS_DMI 0x0004 /* filesystem has the DMI enabled */ |
84 | #define VFS_32BITINODES 0x0008 /* do not use inums above 32 bits */ | 84 | #define VFS_UMOUNT 0x0008 /* unmount in progress */ |
85 | #define VFS_END 0x0008 /* max flag */ | 85 | #define VFS_32BITINODES 0x0010 /* do not use inums above 32 bits */ |
86 | #define VFS_END 0x0010 /* max flag */ | ||
86 | 87 | ||
87 | #define SYNC_ATTR 0x0001 /* sync attributes */ | 88 | #define SYNC_ATTR 0x0001 /* sync attributes */ |
88 | #define SYNC_CLOSE 0x0002 /* close file system down */ | 89 | #define SYNC_CLOSE 0x0002 /* close file system down */ |
@@ -92,7 +93,7 @@ typedef enum { | |||
92 | #define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */ | 93 | #define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */ |
93 | #define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */ | 94 | #define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */ |
94 | #define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */ | 95 | #define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */ |
95 | #define SYNC_QUIESCE 0x0100 /* quiesce filesystem for a snapshot */ | 96 | #define SYNC_QUIESCE 0x0100 /* quiesce fileystem for a snapshot */ |
96 | 97 | ||
97 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ | 98 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
98 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ | 99 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ |
@@ -120,7 +121,7 @@ typedef void (*vfs_init_vnode_t)(bhv_desc_t *, | |||
120 | typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int); | 121 | typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int); |
121 | typedef void (*vfs_freeze_t)(bhv_desc_t *); | 122 | typedef void (*vfs_freeze_t)(bhv_desc_t *); |
122 | 123 | ||
123 | typedef struct vfsops { | 124 | typedef struct bhv_vfsops { |
124 | bhv_position_t vf_position; /* behavior chain position */ | 125 | bhv_position_t vf_position; /* behavior chain position */ |
125 | vfs_mount_t vfs_mount; /* mount file system */ | 126 | vfs_mount_t vfs_mount; /* mount file system */ |
126 | vfs_parseargs_t vfs_parseargs; /* parse mount options */ | 127 | vfs_parseargs_t vfs_parseargs; /* parse mount options */ |
@@ -136,44 +137,44 @@ typedef struct vfsops { | |||
136 | vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */ | 137 | vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */ |
137 | vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */ | 138 | vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */ |
138 | vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */ | 139 | vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */ |
139 | } vfsops_t; | 140 | } bhv_vfsops_t; |
140 | 141 | ||
141 | /* | 142 | /* |
142 | * VFS's. Operates on vfs structure pointers (starts at bhv head). | 143 | * VFS's. Operates on vfs structure pointers (starts at bhv head). |
143 | */ | 144 | */ |
144 | #define VHEAD(v) ((v)->vfs_fbhv) | 145 | #define VHEAD(v) ((v)->vfs_fbhv) |
145 | #define VFS_MOUNT(v, ma,cr, rv) ((rv) = vfs_mount(VHEAD(v), ma,cr)) | 146 | #define bhv_vfs_mount(v, ma,cr) vfs_mount(VHEAD(v), ma,cr) |
146 | #define VFS_PARSEARGS(v, o,ma,f, rv) ((rv) = vfs_parseargs(VHEAD(v), o,ma,f)) | 147 | #define bhv_vfs_parseargs(v, o,ma,f) vfs_parseargs(VHEAD(v), o,ma,f) |
147 | #define VFS_SHOWARGS(v, m, rv) ((rv) = vfs_showargs(VHEAD(v), m)) | 148 | #define bhv_vfs_showargs(v, m) vfs_showargs(VHEAD(v), m) |
148 | #define VFS_UNMOUNT(v, f, cr, rv) ((rv) = vfs_unmount(VHEAD(v), f,cr)) | 149 | #define bhv_vfs_unmount(v, f,cr) vfs_unmount(VHEAD(v), f,cr) |
149 | #define VFS_MNTUPDATE(v, fl, args, rv) ((rv) = vfs_mntupdate(VHEAD(v), fl, args)) | 150 | #define bhv_vfs_mntupdate(v, fl,args) vfs_mntupdate(VHEAD(v), fl,args) |
150 | #define VFS_ROOT(v, vpp, rv) ((rv) = vfs_root(VHEAD(v), vpp)) | 151 | #define bhv_vfs_root(v, vpp) vfs_root(VHEAD(v), vpp) |
151 | #define VFS_STATVFS(v, sp,vp, rv) ((rv) = vfs_statvfs(VHEAD(v), sp,vp)) | 152 | #define bhv_vfs_statvfs(v, sp,vp) vfs_statvfs(VHEAD(v), sp,vp) |
152 | #define VFS_SYNC(v, flag,cr, rv) ((rv) = vfs_sync(VHEAD(v), flag,cr)) | 153 | #define bhv_vfs_sync(v, flag,cr) vfs_sync(VHEAD(v), flag,cr) |
153 | #define VFS_VGET(v, vpp,fidp, rv) ((rv) = vfs_vget(VHEAD(v), vpp,fidp)) | 154 | #define bhv_vfs_vget(v, vpp,fidp) vfs_vget(VHEAD(v), vpp,fidp) |
154 | #define VFS_DMAPIOPS(v, p, rv) ((rv) = vfs_dmapiops(VHEAD(v), p)) | 155 | #define bhv_vfs_dmapiops(v, p) vfs_dmapiops(VHEAD(v), p) |
155 | #define VFS_QUOTACTL(v, c,id,p, rv) ((rv) = vfs_quotactl(VHEAD(v), c,id,p)) | 156 | #define bhv_vfs_quotactl(v, c,id,p) vfs_quotactl(VHEAD(v), c,id,p) |
156 | #define VFS_INIT_VNODE(v, vp,b,ul) ( vfs_init_vnode(VHEAD(v), vp,b,ul) ) | 157 | #define bhv_vfs_init_vnode(v, vp,b,ul) vfs_init_vnode(VHEAD(v), vp,b,ul) |
157 | #define VFS_FORCE_SHUTDOWN(v, fl,f,l) ( vfs_force_shutdown(VHEAD(v), fl,f,l) ) | 158 | #define bhv_vfs_force_shutdown(v,u,f,l) vfs_force_shutdown(VHEAD(v), u,f,l) |
158 | #define VFS_FREEZE(v) ( vfs_freeze(VHEAD(v)) ) | 159 | #define bhv_vfs_freeze(v) vfs_freeze(VHEAD(v)) |
159 | 160 | ||
160 | /* | 161 | /* |
161 | * PVFS's. Operates on behavior descriptor pointers. | 162 | * PVFS's. Operates on behavior descriptor pointers. |
162 | */ | 163 | */ |
163 | #define PVFS_MOUNT(b, ma,cr, rv) ((rv) = vfs_mount(b, ma,cr)) | 164 | #define bhv_next_vfs_mount(b, ma,cr) vfs_mount(b, ma,cr) |
164 | #define PVFS_PARSEARGS(b, o,ma,f, rv) ((rv) = vfs_parseargs(b, o,ma,f)) | 165 | #define bhv_next_vfs_parseargs(b, o,ma,f) vfs_parseargs(b, o,ma,f) |
165 | #define PVFS_SHOWARGS(b, m, rv) ((rv) = vfs_showargs(b, m)) | 166 | #define bhv_next_vfs_showargs(b, m) vfs_showargs(b, m) |
166 | #define PVFS_UNMOUNT(b, f,cr, rv) ((rv) = vfs_unmount(b, f,cr)) | 167 | #define bhv_next_vfs_unmount(b, f,cr) vfs_unmount(b, f,cr) |
167 | #define PVFS_MNTUPDATE(b, fl, args, rv) ((rv) = vfs_mntupdate(b, fl, args)) | 168 | #define bhv_next_vfs_mntupdate(b, fl,args) vfs_mntupdate(b, fl, args) |
168 | #define PVFS_ROOT(b, vpp, rv) ((rv) = vfs_root(b, vpp)) | 169 | #define bhv_next_vfs_root(b, vpp) vfs_root(b, vpp) |
169 | #define PVFS_STATVFS(b, sp,vp, rv) ((rv) = vfs_statvfs(b, sp,vp)) | 170 | #define bhv_next_vfs_statvfs(b, sp,vp) vfs_statvfs(b, sp,vp) |
170 | #define PVFS_SYNC(b, flag,cr, rv) ((rv) = vfs_sync(b, flag,cr)) | 171 | #define bhv_next_vfs_sync(b, flag,cr) vfs_sync(b, flag,cr) |
171 | #define PVFS_VGET(b, vpp,fidp, rv) ((rv) = vfs_vget(b, vpp,fidp)) | 172 | #define bhv_next_vfs_vget(b, vpp,fidp) vfs_vget(b, vpp,fidp) |
172 | #define PVFS_DMAPIOPS(b, p, rv) ((rv) = vfs_dmapiops(b, p)) | 173 | #define bhv_next_vfs_dmapiops(b, p) vfs_dmapiops(b, p) |
173 | #define PVFS_QUOTACTL(b, c,id,p, rv) ((rv) = vfs_quotactl(b, c,id,p)) | 174 | #define bhv_next_vfs_quotactl(b, c,id,p) vfs_quotactl(b, c,id,p) |
174 | #define PVFS_INIT_VNODE(b, vp,b2,ul) ( vfs_init_vnode(b, vp,b2,ul) ) | 175 | #define bhv_next_vfs_init_vnode(b, vp,b2,ul) vfs_init_vnode(b, vp,b2,ul) |
175 | #define PVFS_FORCE_SHUTDOWN(b, fl,f,l) ( vfs_force_shutdown(b, fl,f,l) ) | 176 | #define bhv_next_force_shutdown(b, fl,f,l) vfs_force_shutdown(b, fl,f,l) |
176 | #define PVFS_FREEZE(b) ( vfs_freeze(b) ) | 177 | #define bhv_next_vfs_freeze(b) vfs_freeze(b) |
177 | 178 | ||
178 | extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *); | 179 | extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *); |
179 | extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int); | 180 | extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int); |
@@ -190,25 +191,26 @@ extern void vfs_init_vnode(bhv_desc_t *, struct vnode *, bhv_desc_t *, int); | |||
190 | extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int); | 191 | extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int); |
191 | extern void vfs_freeze(bhv_desc_t *); | 192 | extern void vfs_freeze(bhv_desc_t *); |
192 | 193 | ||
193 | typedef struct bhv_vfsops { | 194 | typedef struct bhv_module_vfsops { |
194 | struct vfsops bhv_common; | 195 | struct bhv_vfsops bhv_common; |
195 | void * bhv_custom; | 196 | void * bhv_custom; |
196 | } bhv_vfsops_t; | 197 | } bhv_module_vfsops_t; |
198 | |||
199 | #define vfs_bhv_lookup(v, id) (bhv_lookup_range(&(v)->vfs_bh, (id), (id))) | ||
200 | #define vfs_bhv_custom(b) (((bhv_module_vfsops_t*)BHV_OPS(b))->bhv_custom) | ||
201 | #define vfs_bhv_set_custom(b,o) ((b)->bhv_custom = (void *)(o)) | ||
202 | #define vfs_bhv_clr_custom(b) ((b)->bhv_custom = NULL) | ||
197 | 203 | ||
198 | #define vfs_bhv_lookup(v, id) ( bhv_lookup_range(&(v)->vfs_bh, (id), (id)) ) | 204 | extern bhv_vfs_t *vfs_allocate(struct super_block *); |
199 | #define vfs_bhv_custom(b) ( ((bhv_vfsops_t *)BHV_OPS(b))->bhv_custom ) | 205 | extern bhv_vfs_t *vfs_from_sb(struct super_block *); |
200 | #define vfs_bhv_set_custom(b,o) ( (b)->bhv_custom = (void *)(o)) | 206 | extern void vfs_deallocate(bhv_vfs_t *); |
201 | #define vfs_bhv_clr_custom(b) ( (b)->bhv_custom = NULL ) | 207 | extern void vfs_insertbhv(bhv_vfs_t *, bhv_desc_t *, bhv_vfsops_t *, void *); |
202 | 208 | ||
203 | extern vfs_t *vfs_allocate(struct super_block *); | 209 | extern void vfs_insertops(bhv_vfs_t *, bhv_module_vfsops_t *); |
204 | extern vfs_t *vfs_from_sb(struct super_block *); | ||
205 | extern void vfs_deallocate(vfs_t *); | ||
206 | extern void vfs_insertops(vfs_t *, bhv_vfsops_t *); | ||
207 | extern void vfs_insertbhv(vfs_t *, bhv_desc_t *, vfsops_t *, void *); | ||
208 | 210 | ||
209 | extern void bhv_insert_all_vfsops(struct vfs *); | 211 | extern void bhv_insert_all_vfsops(struct bhv_vfs *); |
210 | extern void bhv_remove_all_vfsops(struct vfs *, int); | 212 | extern void bhv_remove_all_vfsops(struct bhv_vfs *, int); |
211 | extern void bhv_remove_vfsops(struct vfs *, int); | 213 | extern void bhv_remove_vfsops(struct bhv_vfs *, int); |
212 | 214 | ||
213 | #define fs_frozen(vfsp) ((vfsp)->vfs_super->s_frozen) | 215 | #define fs_frozen(vfsp) ((vfsp)->vfs_super->s_frozen) |
214 | #define fs_check_frozen(vfsp, level) \ | 216 | #define fs_check_frozen(vfsp, level) \ |