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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vfs.h')
-rw-r--r--fs/xfs/linux-2.6/xfs_vfs.h126
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
24struct bhv_vfs;
24struct fid; 25struct fid;
25struct vfs;
26struct cred; 26struct cred;
27struct vnode; 27struct vnode;
28struct kstatfs; 28struct statfs;
29struct seq_file; 29struct seq_file;
30struct super_block; 30struct super_block;
31struct xfs_mount_args; 31struct xfs_mount_args;
32 32
33typedef struct kstatfs xfs_statfs_t; 33typedef struct kstatfs xfs_statfs_t;
34 34
35typedef struct vfs_sync_work { 35typedef 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
42typedef struct vfs { 42typedef 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 *,
120typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int); 121typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int);
121typedef void (*vfs_freeze_t)(bhv_desc_t *); 122typedef void (*vfs_freeze_t)(bhv_desc_t *);
122 123
123typedef struct vfsops { 124typedef 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
178extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *); 179extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *);
179extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int); 180extern 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);
190extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int); 191extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int);
191extern void vfs_freeze(bhv_desc_t *); 192extern void vfs_freeze(bhv_desc_t *);
192 193
193typedef struct bhv_vfsops { 194typedef 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)) ) 204extern bhv_vfs_t *vfs_allocate(struct super_block *);
199#define vfs_bhv_custom(b) ( ((bhv_vfsops_t *)BHV_OPS(b))->bhv_custom ) 205extern bhv_vfs_t *vfs_from_sb(struct super_block *);
200#define vfs_bhv_set_custom(b,o) ( (b)->bhv_custom = (void *)(o)) 206extern void vfs_deallocate(bhv_vfs_t *);
201#define vfs_bhv_clr_custom(b) ( (b)->bhv_custom = NULL ) 207extern void vfs_insertbhv(bhv_vfs_t *, bhv_desc_t *, bhv_vfsops_t *, void *);
202 208
203extern vfs_t *vfs_allocate(struct super_block *); 209extern void vfs_insertops(bhv_vfs_t *, bhv_module_vfsops_t *);
204extern vfs_t *vfs_from_sb(struct super_block *);
205extern void vfs_deallocate(vfs_t *);
206extern void vfs_insertops(vfs_t *, bhv_vfsops_t *);
207extern void vfs_insertbhv(vfs_t *, bhv_desc_t *, vfsops_t *, void *);
208 210
209extern void bhv_insert_all_vfsops(struct vfs *); 211extern void bhv_insert_all_vfsops(struct bhv_vfs *);
210extern void bhv_remove_all_vfsops(struct vfs *, int); 212extern void bhv_remove_all_vfsops(struct bhv_vfs *, int);
211extern void bhv_remove_vfsops(struct vfs *, int); 213extern 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) \