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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.h168
1 files changed, 7 insertions, 161 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index dca3481aaafa..4da03a4e3520 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -21,68 +21,25 @@
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 inode;
25struct bhv_vnode;
26 25
27struct fid; 26struct fid;
28struct cred; 27struct cred;
29struct seq_file; 28struct seq_file;
30struct super_block; 29struct super_block;
30struct xfs_inode;
31struct xfs_mount;
31struct xfs_mount_args; 32struct xfs_mount_args;
32 33
33typedef struct kstatfs bhv_statvfs_t; 34typedef struct kstatfs bhv_statvfs_t;
34 35
35typedef struct bhv_vfs_sync_work { 36typedef struct bhv_vfs_sync_work {
36 struct list_head w_list; 37 struct list_head w_list;
37 struct bhv_vfs *w_vfs; 38 struct xfs_mount *w_mount;
38 void *w_data; /* syncer routine argument */ 39 void *w_data; /* syncer routine argument */
39 void (*w_syncer)(struct bhv_vfs *, void *); 40 void (*w_syncer)(struct xfs_mount *, void *);
40} bhv_vfs_sync_work_t; 41} bhv_vfs_sync_work_t;
41 42
42typedef struct bhv_vfs {
43 u_int vfs_flag; /* flags */
44 xfs_fsid_t vfs_fsid; /* file system ID */
45 xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */
46 bhv_head_t vfs_bh; /* head of vfs behavior chain */
47 struct super_block *vfs_super; /* generic superblock pointer */
48 struct task_struct *vfs_sync_task; /* generalised sync thread */
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 */
51 spinlock_t vfs_sync_lock; /* work item list lock */
52 int vfs_sync_seq; /* sync thread generation no. */
53 wait_queue_head_t vfs_wait_single_sync_task;
54} bhv_vfs_t;
55
56#define bhvtovfs(bdp) ( (struct bhv_vfs *)BHV_VOBJ(bdp) )
57#define bhvtovfsops(bdp) ( (struct bhv_vfsops *)BHV_OPS(bdp) )
58#define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh )
59#define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) )
60
61#define VFS_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
62#define VFS_POSITION_TOP BHV_POSITION_TOP /* chain top */
63#define VFS_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
64
65typedef enum {
66 VFS_BHV_UNKNOWN, /* not specified */
67 VFS_BHV_XFS, /* xfs */
68 VFS_BHV_DM, /* data migration */
69 VFS_BHV_QM, /* quota manager */
70 VFS_BHV_IO, /* IO path */
71 VFS_BHV_END /* housekeeping end-of-range */
72} bhv_vfs_type_t;
73
74#define VFS_POSITION_XFS (BHV_POSITION_BASE)
75#define VFS_POSITION_DM (VFS_POSITION_BASE+10)
76#define VFS_POSITION_QM (VFS_POSITION_BASE+20)
77#define VFS_POSITION_IO (VFS_POSITION_BASE+30)
78
79#define VFS_RDONLY 0x0001 /* read-only vfs */
80#define VFS_GRPID 0x0002 /* group-ID assigned from directory */
81#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */
82/* ---- VFS_UMOUNT ---- 0x0008 -- unneeded, fixed via kthread APIs */
83#define VFS_32BITINODES 0x0010 /* do not use inums above 32 bits */
84#define VFS_END 0x0010 /* max flag */
85
86#define SYNC_ATTR 0x0001 /* sync attributes */ 43#define SYNC_ATTR 0x0001 /* sync attributes */
87#define SYNC_CLOSE 0x0002 /* close file system down */ 44#define SYNC_CLOSE 0x0002 /* close file system down */
88#define SYNC_DELWRI 0x0004 /* look at delayed writes */ 45#define SYNC_DELWRI 0x0004 /* look at delayed writes */
@@ -115,118 +72,7 @@ typedef enum {
115#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ 72#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */
116#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ 73#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */
117 74
118typedef int (*vfs_mount_t)(bhv_desc_t *, 75#define xfs_test_for_freeze(mp) ((mp)->m_super->s_frozen)
119 struct xfs_mount_args *, struct cred *); 76#define xfs_wait_for_freeze(mp,l) vfs_check_frozen((mp)->m_super, (l))
120typedef int (*vfs_parseargs_t)(bhv_desc_t *, char *,
121 struct xfs_mount_args *, int);
122typedef int (*vfs_showargs_t)(bhv_desc_t *, struct seq_file *);
123typedef int (*vfs_unmount_t)(bhv_desc_t *, int, struct cred *);
124typedef int (*vfs_mntupdate_t)(bhv_desc_t *, int *,
125 struct xfs_mount_args *);
126typedef int (*vfs_root_t)(bhv_desc_t *, struct bhv_vnode **);
127typedef int (*vfs_statvfs_t)(bhv_desc_t *, bhv_statvfs_t *,
128 struct bhv_vnode *);
129typedef int (*vfs_sync_t)(bhv_desc_t *, int, struct cred *);
130typedef int (*vfs_vget_t)(bhv_desc_t *, struct bhv_vnode **, struct fid *);
131typedef int (*vfs_dmapiops_t)(bhv_desc_t *, caddr_t);
132typedef int (*vfs_quotactl_t)(bhv_desc_t *, int, int, caddr_t);
133typedef void (*vfs_init_vnode_t)(bhv_desc_t *,
134 struct bhv_vnode *, bhv_desc_t *, int);
135typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int);
136typedef void (*vfs_freeze_t)(bhv_desc_t *);
137
138typedef struct bhv_vfsops {
139 bhv_position_t vf_position; /* behavior chain position */
140 vfs_mount_t vfs_mount; /* mount file system */
141 vfs_parseargs_t vfs_parseargs; /* parse mount options */
142 vfs_showargs_t vfs_showargs; /* unparse mount options */
143 vfs_unmount_t vfs_unmount; /* unmount file system */
144 vfs_mntupdate_t vfs_mntupdate; /* update file system options */
145 vfs_root_t vfs_root; /* get root vnode */
146 vfs_statvfs_t vfs_statvfs; /* file system statistics */
147 vfs_sync_t vfs_sync; /* flush files */
148 vfs_vget_t vfs_vget; /* get vnode from fid */
149 vfs_dmapiops_t vfs_dmapiops; /* data migration */
150 vfs_quotactl_t vfs_quotactl; /* disk quota */
151 vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */
152 vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */
153 vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */
154} bhv_vfsops_t;
155
156/*
157 * Virtual filesystem operations, operating from head bhv.
158 */
159#define VFSHEAD(v) ((v)->vfs_bh.bh_first)
160#define bhv_vfs_mount(v, ma,cr) vfs_mount(VFSHEAD(v), ma,cr)
161#define bhv_vfs_parseargs(v, o,ma,f) vfs_parseargs(VFSHEAD(v), o,ma,f)
162#define bhv_vfs_showargs(v, m) vfs_showargs(VFSHEAD(v), m)
163#define bhv_vfs_unmount(v, f,cr) vfs_unmount(VFSHEAD(v), f,cr)
164#define bhv_vfs_mntupdate(v, fl,args) vfs_mntupdate(VFSHEAD(v), fl,args)
165#define bhv_vfs_root(v, vpp) vfs_root(VFSHEAD(v), vpp)
166#define bhv_vfs_statvfs(v, sp,vp) vfs_statvfs(VFSHEAD(v), sp,vp)
167#define bhv_vfs_sync(v, flag,cr) vfs_sync(VFSHEAD(v), flag,cr)
168#define bhv_vfs_vget(v, vpp,fidp) vfs_vget(VFSHEAD(v), vpp,fidp)
169#define bhv_vfs_dmapiops(v, p) vfs_dmapiops(VFSHEAD(v), p)
170#define bhv_vfs_quotactl(v, c,id,p) vfs_quotactl(VFSHEAD(v), c,id,p)
171#define bhv_vfs_init_vnode(v, vp,b,ul) vfs_init_vnode(VFSHEAD(v), vp,b,ul)
172#define bhv_vfs_force_shutdown(v,u,f,l) vfs_force_shutdown(VFSHEAD(v), u,f,l)
173#define bhv_vfs_freeze(v) vfs_freeze(VFSHEAD(v))
174
175/*
176 * Virtual filesystem operations, operating from next bhv.
177 */
178#define bhv_next_vfs_mount(b, ma,cr) vfs_mount(b, ma,cr)
179#define bhv_next_vfs_parseargs(b, o,ma,f) vfs_parseargs(b, o,ma,f)
180#define bhv_next_vfs_showargs(b, m) vfs_showargs(b, m)
181#define bhv_next_vfs_unmount(b, f,cr) vfs_unmount(b, f,cr)
182#define bhv_next_vfs_mntupdate(b, fl,args) vfs_mntupdate(b, fl, args)
183#define bhv_next_vfs_root(b, vpp) vfs_root(b, vpp)
184#define bhv_next_vfs_statvfs(b, sp,vp) vfs_statvfs(b, sp,vp)
185#define bhv_next_vfs_sync(b, flag,cr) vfs_sync(b, flag,cr)
186#define bhv_next_vfs_vget(b, vpp,fidp) vfs_vget(b, vpp,fidp)
187#define bhv_next_vfs_dmapiops(b, p) vfs_dmapiops(b, p)
188#define bhv_next_vfs_quotactl(b, c,id,p) vfs_quotactl(b, c,id,p)
189#define bhv_next_vfs_init_vnode(b, vp,b2,ul) vfs_init_vnode(b, vp,b2,ul)
190#define bhv_next_force_shutdown(b, fl,f,l) vfs_force_shutdown(b, fl,f,l)
191#define bhv_next_vfs_freeze(b) vfs_freeze(b)
192
193extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *);
194extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int);
195extern int vfs_showargs(bhv_desc_t *, struct seq_file *);
196extern int vfs_unmount(bhv_desc_t *, int, struct cred *);
197extern int vfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *);
198extern int vfs_root(bhv_desc_t *, struct bhv_vnode **);
199extern int vfs_statvfs(bhv_desc_t *, bhv_statvfs_t *, struct bhv_vnode *);
200extern int vfs_sync(bhv_desc_t *, int, struct cred *);
201extern int vfs_vget(bhv_desc_t *, struct bhv_vnode **, struct fid *);
202extern int vfs_dmapiops(bhv_desc_t *, caddr_t);
203extern int vfs_quotactl(bhv_desc_t *, int, int, caddr_t);
204extern void vfs_init_vnode(bhv_desc_t *, struct bhv_vnode *, bhv_desc_t *, int);
205extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int);
206extern void vfs_freeze(bhv_desc_t *);
207
208#define vfs_test_for_freeze(vfs) ((vfs)->vfs_super->s_frozen)
209#define vfs_wait_for_freeze(vfs,l) vfs_check_frozen((vfs)->vfs_super, (l))
210
211typedef struct bhv_module_vfsops {
212 struct bhv_vfsops bhv_common;
213 void * bhv_custom;
214} bhv_module_vfsops_t;
215
216#define vfs_bhv_lookup(v, id) (bhv_lookup_range(&(v)->vfs_bh, (id), (id)))
217#define vfs_bhv_custom(b) (((bhv_module_vfsops_t*)BHV_OPS(b))->bhv_custom)
218#define vfs_bhv_set_custom(b,o) ((b)->bhv_custom = (void *)(o))
219#define vfs_bhv_clr_custom(b) ((b)->bhv_custom = NULL)
220
221extern bhv_vfs_t *vfs_allocate(struct super_block *);
222extern bhv_vfs_t *vfs_from_sb(struct super_block *);
223extern void vfs_deallocate(bhv_vfs_t *);
224extern void vfs_insertbhv(bhv_vfs_t *, bhv_desc_t *, bhv_vfsops_t *, void *);
225
226extern void vfs_insertops(bhv_vfs_t *, bhv_module_vfsops_t *);
227
228extern void bhv_insert_all_vfsops(struct bhv_vfs *);
229extern void bhv_remove_all_vfsops(struct bhv_vfs *, int);
230extern void bhv_remove_vfsops(struct bhv_vfs *, int);
231 77
232#endif /* __XFS_VFS_H__ */ 78#endif /* __XFS_VFS_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-15 21:24:00 -0500