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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vnode.h')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_vnode.h | 666 |
1 files changed, 666 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h new file mode 100644 index 000000000000..da76c1f1e11c --- /dev/null +++ b/fs/xfs/linux-2.6/xfs_vnode.h | |||
@@ -0,0 +1,666 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms of version 2 of the GNU General Public License as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope that it would be useful, but | ||
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
11 | * | ||
12 | * Further, this software is distributed without any warranty that it is | ||
13 | * free of the rightful claim of any third person regarding infringement | ||
14 | * or the like. Any license provided herein, whether implied or | ||
15 | * otherwise, applies only to this software file. Patent licenses, if | ||
16 | * any, provided herein do not apply to combinations of this program with | ||
17 | * other software, or any other product whatsoever. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License along | ||
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | ||
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
22 | * | ||
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | ||
24 | * Mountain View, CA 94043, or: | ||
25 | * | ||
26 | * http://www.sgi.com | ||
27 | * | ||
28 | * For further information regarding this notice, see: | ||
29 | * | ||
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | ||
31 | * | ||
32 | * Portions Copyright (c) 1989, 1993 | ||
33 | * The Regents of the University of California. All rights reserved. | ||
34 | * | ||
35 | * Redistribution and use in source and binary forms, with or without | ||
36 | * modification, are permitted provided that the following conditions | ||
37 | * are met: | ||
38 | * 1. Redistributions of source code must retain the above copyright | ||
39 | * notice, this list of conditions and the following disclaimer. | ||
40 | * 2. Redistributions in binary form must reproduce the above copyright | ||
41 | * notice, this list of conditions and the following disclaimer in the | ||
42 | * documentation and/or other materials provided with the distribution. | ||
43 | * 3. Neither the name of the University nor the names of its contributors | ||
44 | * may be used to endorse or promote products derived from this software | ||
45 | * without specific prior written permission. | ||
46 | * | ||
47 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | ||
48 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
49 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
50 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
51 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
52 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
53 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
54 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
55 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
56 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
57 | * SUCH DAMAGE. | ||
58 | */ | ||
59 | #ifndef __XFS_VNODE_H__ | ||
60 | #define __XFS_VNODE_H__ | ||
61 | |||
62 | struct uio; | ||
63 | struct file; | ||
64 | struct vattr; | ||
65 | struct xfs_iomap; | ||
66 | struct attrlist_cursor_kern; | ||
67 | |||
68 | /* | ||
69 | * Vnode types. VNON means no type. | ||
70 | */ | ||
71 | enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VFIFO, VBAD, VSOCK }; | ||
72 | |||
73 | typedef xfs_ino_t vnumber_t; | ||
74 | typedef struct dentry vname_t; | ||
75 | typedef bhv_head_t vn_bhv_head_t; | ||
76 | |||
77 | /* | ||
78 | * MP locking protocols: | ||
79 | * v_flag, v_vfsp VN_LOCK/VN_UNLOCK | ||
80 | * v_type read-only or fs-dependent | ||
81 | */ | ||
82 | typedef struct vnode { | ||
83 | __u32 v_flag; /* vnode flags (see below) */ | ||
84 | enum vtype v_type; /* vnode type */ | ||
85 | struct vfs *v_vfsp; /* ptr to containing VFS */ | ||
86 | vnumber_t v_number; /* in-core vnode number */ | ||
87 | vn_bhv_head_t v_bh; /* behavior head */ | ||
88 | spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */ | ||
89 | struct inode v_inode; /* Linux inode */ | ||
90 | #ifdef XFS_VNODE_TRACE | ||
91 | struct ktrace *v_trace; /* trace header structure */ | ||
92 | #endif | ||
93 | } vnode_t; | ||
94 | |||
95 | #define v_fbhv v_bh.bh_first /* first behavior */ | ||
96 | #define v_fops v_bh.bh_first->bd_ops /* first behavior ops */ | ||
97 | |||
98 | #define VNODE_POSITION_BASE BHV_POSITION_BASE /* chain bottom */ | ||
99 | #define VNODE_POSITION_TOP BHV_POSITION_TOP /* chain top */ | ||
100 | #define VNODE_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */ | ||
101 | |||
102 | typedef enum { | ||
103 | VN_BHV_UNKNOWN, /* not specified */ | ||
104 | VN_BHV_XFS, /* xfs */ | ||
105 | VN_BHV_DM, /* data migration */ | ||
106 | VN_BHV_QM, /* quota manager */ | ||
107 | VN_BHV_IO, /* IO path */ | ||
108 | VN_BHV_END /* housekeeping end-of-range */ | ||
109 | } vn_bhv_t; | ||
110 | |||
111 | #define VNODE_POSITION_XFS (VNODE_POSITION_BASE) | ||
112 | #define VNODE_POSITION_DM (VNODE_POSITION_BASE+10) | ||
113 | #define VNODE_POSITION_QM (VNODE_POSITION_BASE+20) | ||
114 | #define VNODE_POSITION_IO (VNODE_POSITION_BASE+30) | ||
115 | |||
116 | /* | ||
117 | * Macros for dealing with the behavior descriptor inside of the vnode. | ||
118 | */ | ||
119 | #define BHV_TO_VNODE(bdp) ((vnode_t *)BHV_VOBJ(bdp)) | ||
120 | #define BHV_TO_VNODE_NULL(bdp) ((vnode_t *)BHV_VOBJNULL(bdp)) | ||
121 | |||
122 | #define VN_BHV_HEAD(vp) ((bhv_head_t *)(&((vp)->v_bh))) | ||
123 | #define vn_bhv_head_init(bhp,name) bhv_head_init(bhp,name) | ||
124 | #define vn_bhv_remove(bhp,bdp) bhv_remove(bhp,bdp) | ||
125 | #define vn_bhv_lookup(bhp,ops) bhv_lookup(bhp,ops) | ||
126 | #define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops) | ||
127 | |||
128 | /* | ||
129 | * Vnode to Linux inode mapping. | ||
130 | */ | ||
131 | #define LINVFS_GET_VP(inode) ((vnode_t *)list_entry(inode, vnode_t, v_inode)) | ||
132 | #define LINVFS_GET_IP(vp) (&(vp)->v_inode) | ||
133 | |||
134 | /* | ||
135 | * Convert between vnode types and inode formats (since POSIX.1 | ||
136 | * defines mode word of stat structure in terms of inode formats). | ||
137 | */ | ||
138 | extern enum vtype iftovt_tab[]; | ||
139 | extern u_short vttoif_tab[]; | ||
140 | #define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12]) | ||
141 | #define VTTOIF(indx) (vttoif_tab[(int)(indx)]) | ||
142 | #define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode)) | ||
143 | |||
144 | |||
145 | /* | ||
146 | * Vnode flags. | ||
147 | */ | ||
148 | #define VINACT 0x1 /* vnode is being inactivated */ | ||
149 | #define VRECLM 0x2 /* vnode is being reclaimed */ | ||
150 | #define VWAIT 0x4 /* waiting for VINACT/VRECLM to end */ | ||
151 | #define VMODIFIED 0x8 /* XFS inode state possibly differs */ | ||
152 | /* to the Linux inode state. */ | ||
153 | |||
154 | /* | ||
155 | * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter. | ||
156 | */ | ||
157 | typedef enum vrwlock { | ||
158 | VRWLOCK_NONE, | ||
159 | VRWLOCK_READ, | ||
160 | VRWLOCK_WRITE, | ||
161 | VRWLOCK_WRITE_DIRECT, | ||
162 | VRWLOCK_TRY_READ, | ||
163 | VRWLOCK_TRY_WRITE | ||
164 | } vrwlock_t; | ||
165 | |||
166 | /* | ||
167 | * Return values for VOP_INACTIVE. A return value of | ||
168 | * VN_INACTIVE_NOCACHE implies that the file system behavior | ||
169 | * has disassociated its state and bhv_desc_t from the vnode. | ||
170 | */ | ||
171 | #define VN_INACTIVE_CACHE 0 | ||
172 | #define VN_INACTIVE_NOCACHE 1 | ||
173 | |||
174 | /* | ||
175 | * Values for the cmd code given to VOP_VNODE_CHANGE. | ||
176 | */ | ||
177 | typedef enum vchange { | ||
178 | VCHANGE_FLAGS_FRLOCKS = 0, | ||
179 | VCHANGE_FLAGS_ENF_LOCKING = 1, | ||
180 | VCHANGE_FLAGS_TRUNCATED = 2, | ||
181 | VCHANGE_FLAGS_PAGE_DIRTY = 3, | ||
182 | VCHANGE_FLAGS_IOEXCL_COUNT = 4 | ||
183 | } vchange_t; | ||
184 | |||
185 | |||
186 | typedef int (*vop_open_t)(bhv_desc_t *, struct cred *); | ||
187 | typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *, | ||
188 | const struct iovec *, unsigned int, | ||
189 | loff_t *, int, struct cred *); | ||
190 | typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *, | ||
191 | const struct iovec *, unsigned int, | ||
192 | loff_t *, int, struct cred *); | ||
193 | typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *, | ||
194 | loff_t *, int, size_t, read_actor_t, | ||
195 | void *, struct cred *); | ||
196 | typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *, | ||
197 | int, unsigned int, void __user *); | ||
198 | typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int, | ||
199 | struct cred *); | ||
200 | typedef int (*vop_setattr_t)(bhv_desc_t *, struct vattr *, int, | ||
201 | struct cred *); | ||
202 | typedef int (*vop_access_t)(bhv_desc_t *, int, struct cred *); | ||
203 | typedef int (*vop_lookup_t)(bhv_desc_t *, vname_t *, vnode_t **, | ||
204 | int, vnode_t *, struct cred *); | ||
205 | typedef int (*vop_create_t)(bhv_desc_t *, vname_t *, struct vattr *, | ||
206 | vnode_t **, struct cred *); | ||
207 | typedef int (*vop_remove_t)(bhv_desc_t *, vname_t *, struct cred *); | ||
208 | typedef int (*vop_link_t)(bhv_desc_t *, vnode_t *, vname_t *, | ||
209 | struct cred *); | ||
210 | typedef int (*vop_rename_t)(bhv_desc_t *, vname_t *, vnode_t *, vname_t *, | ||
211 | struct cred *); | ||
212 | typedef int (*vop_mkdir_t)(bhv_desc_t *, vname_t *, struct vattr *, | ||
213 | vnode_t **, struct cred *); | ||
214 | typedef int (*vop_rmdir_t)(bhv_desc_t *, vname_t *, struct cred *); | ||
215 | typedef int (*vop_readdir_t)(bhv_desc_t *, struct uio *, struct cred *, | ||
216 | int *); | ||
217 | typedef int (*vop_symlink_t)(bhv_desc_t *, vname_t *, struct vattr *, | ||
218 | char *, vnode_t **, struct cred *); | ||
219 | typedef int (*vop_readlink_t)(bhv_desc_t *, struct uio *, int, | ||
220 | struct cred *); | ||
221 | typedef int (*vop_fsync_t)(bhv_desc_t *, int, struct cred *, | ||
222 | xfs_off_t, xfs_off_t); | ||
223 | typedef int (*vop_inactive_t)(bhv_desc_t *, struct cred *); | ||
224 | typedef int (*vop_fid2_t)(bhv_desc_t *, struct fid *); | ||
225 | typedef int (*vop_release_t)(bhv_desc_t *); | ||
226 | typedef int (*vop_rwlock_t)(bhv_desc_t *, vrwlock_t); | ||
227 | typedef void (*vop_rwunlock_t)(bhv_desc_t *, vrwlock_t); | ||
228 | typedef int (*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int, | ||
229 | struct xfs_iomap *, int *); | ||
230 | typedef int (*vop_reclaim_t)(bhv_desc_t *); | ||
231 | typedef int (*vop_attr_get_t)(bhv_desc_t *, char *, char *, int *, int, | ||
232 | struct cred *); | ||
233 | typedef int (*vop_attr_set_t)(bhv_desc_t *, char *, char *, int, int, | ||
234 | struct cred *); | ||
235 | typedef int (*vop_attr_remove_t)(bhv_desc_t *, char *, int, struct cred *); | ||
236 | typedef int (*vop_attr_list_t)(bhv_desc_t *, char *, int, int, | ||
237 | struct attrlist_cursor_kern *, struct cred *); | ||
238 | typedef void (*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int); | ||
239 | typedef void (*vop_vnode_change_t)(bhv_desc_t *, vchange_t, __psint_t); | ||
240 | typedef void (*vop_ptossvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int); | ||
241 | typedef void (*vop_pflushinvalvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, int); | ||
242 | typedef int (*vop_pflushvp_t)(bhv_desc_t *, xfs_off_t, xfs_off_t, | ||
243 | uint64_t, int); | ||
244 | typedef int (*vop_iflush_t)(bhv_desc_t *, int); | ||
245 | |||
246 | |||
247 | typedef struct vnodeops { | ||
248 | bhv_position_t vn_position; /* position within behavior chain */ | ||
249 | vop_open_t vop_open; | ||
250 | vop_read_t vop_read; | ||
251 | vop_write_t vop_write; | ||
252 | vop_sendfile_t vop_sendfile; | ||
253 | vop_ioctl_t vop_ioctl; | ||
254 | vop_getattr_t vop_getattr; | ||
255 | vop_setattr_t vop_setattr; | ||
256 | vop_access_t vop_access; | ||
257 | vop_lookup_t vop_lookup; | ||
258 | vop_create_t vop_create; | ||
259 | vop_remove_t vop_remove; | ||
260 | vop_link_t vop_link; | ||
261 | vop_rename_t vop_rename; | ||
262 | vop_mkdir_t vop_mkdir; | ||
263 | vop_rmdir_t vop_rmdir; | ||
264 | vop_readdir_t vop_readdir; | ||
265 | vop_symlink_t vop_symlink; | ||
266 | vop_readlink_t vop_readlink; | ||
267 | vop_fsync_t vop_fsync; | ||
268 | vop_inactive_t vop_inactive; | ||
269 | vop_fid2_t vop_fid2; | ||
270 | vop_rwlock_t vop_rwlock; | ||
271 | vop_rwunlock_t vop_rwunlock; | ||
272 | vop_bmap_t vop_bmap; | ||
273 | vop_reclaim_t vop_reclaim; | ||
274 | vop_attr_get_t vop_attr_get; | ||
275 | vop_attr_set_t vop_attr_set; | ||
276 | vop_attr_remove_t vop_attr_remove; | ||
277 | vop_attr_list_t vop_attr_list; | ||
278 | vop_link_removed_t vop_link_removed; | ||
279 | vop_vnode_change_t vop_vnode_change; | ||
280 | vop_ptossvp_t vop_tosspages; | ||
281 | vop_pflushinvalvp_t vop_flushinval_pages; | ||
282 | vop_pflushvp_t vop_flush_pages; | ||
283 | vop_release_t vop_release; | ||
284 | vop_iflush_t vop_iflush; | ||
285 | } vnodeops_t; | ||
286 | |||
287 | /* | ||
288 | * VOP's. | ||
289 | */ | ||
290 | #define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op) | ||
291 | |||
292 | #define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \ | ||
293 | rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr) | ||
294 | #define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \ | ||
295 | rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr) | ||
296 | #define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \ | ||
297 | rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr) | ||
298 | #define VOP_BMAP(vp,of,sz,rw,b,n,rv) \ | ||
299 | rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n) | ||
300 | #define VOP_OPEN(vp, cr, rv) \ | ||
301 | rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr) | ||
302 | #define VOP_GETATTR(vp, vap, f, cr, rv) \ | ||
303 | rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr) | ||
304 | #define VOP_SETATTR(vp, vap, f, cr, rv) \ | ||
305 | rv = _VOP_(vop_setattr, vp)((vp)->v_fbhv, vap, f, cr) | ||
306 | #define VOP_ACCESS(vp, mode, cr, rv) \ | ||
307 | rv = _VOP_(vop_access, vp)((vp)->v_fbhv, mode, cr) | ||
308 | #define VOP_LOOKUP(vp,d,vpp,f,rdir,cr,rv) \ | ||
309 | rv = _VOP_(vop_lookup, vp)((vp)->v_fbhv,d,vpp,f,rdir,cr) | ||
310 | #define VOP_CREATE(dvp,d,vap,vpp,cr,rv) \ | ||
311 | rv = _VOP_(vop_create, dvp)((dvp)->v_fbhv,d,vap,vpp,cr) | ||
312 | #define VOP_REMOVE(dvp,d,cr,rv) \ | ||
313 | rv = _VOP_(vop_remove, dvp)((dvp)->v_fbhv,d,cr) | ||
314 | #define VOP_LINK(tdvp,fvp,d,cr,rv) \ | ||
315 | rv = _VOP_(vop_link, tdvp)((tdvp)->v_fbhv,fvp,d,cr) | ||
316 | #define VOP_RENAME(fvp,fnm,tdvp,tnm,cr,rv) \ | ||
317 | rv = _VOP_(vop_rename, fvp)((fvp)->v_fbhv,fnm,tdvp,tnm,cr) | ||
318 | #define VOP_MKDIR(dp,d,vap,vpp,cr,rv) \ | ||
319 | rv = _VOP_(vop_mkdir, dp)((dp)->v_fbhv,d,vap,vpp,cr) | ||
320 | #define VOP_RMDIR(dp,d,cr,rv) \ | ||
321 | rv = _VOP_(vop_rmdir, dp)((dp)->v_fbhv,d,cr) | ||
322 | #define VOP_READDIR(vp,uiop,cr,eofp,rv) \ | ||
323 | rv = _VOP_(vop_readdir, vp)((vp)->v_fbhv,uiop,cr,eofp) | ||
324 | #define VOP_SYMLINK(dvp,d,vap,tnm,vpp,cr,rv) \ | ||
325 | rv = _VOP_(vop_symlink, dvp) ((dvp)->v_fbhv,d,vap,tnm,vpp,cr) | ||
326 | #define VOP_READLINK(vp,uiop,fl,cr,rv) \ | ||
327 | rv = _VOP_(vop_readlink, vp)((vp)->v_fbhv,uiop,fl,cr) | ||
328 | #define VOP_FSYNC(vp,f,cr,b,e,rv) \ | ||
329 | rv = _VOP_(vop_fsync, vp)((vp)->v_fbhv,f,cr,b,e) | ||
330 | #define VOP_INACTIVE(vp, cr, rv) \ | ||
331 | rv = _VOP_(vop_inactive, vp)((vp)->v_fbhv, cr) | ||
332 | #define VOP_RELEASE(vp, rv) \ | ||
333 | rv = _VOP_(vop_release, vp)((vp)->v_fbhv) | ||
334 | #define VOP_FID2(vp, fidp, rv) \ | ||
335 | rv = _VOP_(vop_fid2, vp)((vp)->v_fbhv, fidp) | ||
336 | #define VOP_RWLOCK(vp,i) \ | ||
337 | (void)_VOP_(vop_rwlock, vp)((vp)->v_fbhv, i) | ||
338 | #define VOP_RWLOCK_TRY(vp,i) \ | ||
339 | _VOP_(vop_rwlock, vp)((vp)->v_fbhv, i) | ||
340 | #define VOP_RWUNLOCK(vp,i) \ | ||
341 | (void)_VOP_(vop_rwunlock, vp)((vp)->v_fbhv, i) | ||
342 | #define VOP_FRLOCK(vp,c,fl,flags,offset,fr,rv) \ | ||
343 | rv = _VOP_(vop_frlock, vp)((vp)->v_fbhv,c,fl,flags,offset,fr) | ||
344 | #define VOP_RECLAIM(vp, rv) \ | ||
345 | rv = _VOP_(vop_reclaim, vp)((vp)->v_fbhv) | ||
346 | #define VOP_ATTR_GET(vp, name, val, vallenp, fl, cred, rv) \ | ||
347 | rv = _VOP_(vop_attr_get, vp)((vp)->v_fbhv,name,val,vallenp,fl,cred) | ||
348 | #define VOP_ATTR_SET(vp, name, val, vallen, fl, cred, rv) \ | ||
349 | rv = _VOP_(vop_attr_set, vp)((vp)->v_fbhv,name,val,vallen,fl,cred) | ||
350 | #define VOP_ATTR_REMOVE(vp, name, flags, cred, rv) \ | ||
351 | rv = _VOP_(vop_attr_remove, vp)((vp)->v_fbhv,name,flags,cred) | ||
352 | #define VOP_ATTR_LIST(vp, buf, buflen, fl, cursor, cred, rv) \ | ||
353 | rv = _VOP_(vop_attr_list, vp)((vp)->v_fbhv,buf,buflen,fl,cursor,cred) | ||
354 | #define VOP_LINK_REMOVED(vp, dvp, linkzero) \ | ||
355 | (void)_VOP_(vop_link_removed, vp)((vp)->v_fbhv, dvp, linkzero) | ||
356 | #define VOP_VNODE_CHANGE(vp, cmd, val) \ | ||
357 | (void)_VOP_(vop_vnode_change, vp)((vp)->v_fbhv,cmd,val) | ||
358 | /* | ||
359 | * These are page cache functions that now go thru VOPs. | ||
360 | * 'last' parameter is unused and left in for IRIX compatibility | ||
361 | */ | ||
362 | #define VOP_TOSS_PAGES(vp, first, last, fiopt) \ | ||
363 | _VOP_(vop_tosspages, vp)((vp)->v_fbhv,first, last, fiopt) | ||
364 | /* | ||
365 | * 'last' parameter is unused and left in for IRIX compatibility | ||
366 | */ | ||
367 | #define VOP_FLUSHINVAL_PAGES(vp, first, last, fiopt) \ | ||
368 | _VOP_(vop_flushinval_pages, vp)((vp)->v_fbhv,first,last,fiopt) | ||
369 | /* | ||
370 | * 'last' parameter is unused and left in for IRIX compatibility | ||
371 | */ | ||
372 | #define VOP_FLUSH_PAGES(vp, first, last, flags, fiopt, rv) \ | ||
373 | rv = _VOP_(vop_flush_pages, vp)((vp)->v_fbhv,first,last,flags,fiopt) | ||
374 | #define VOP_IOCTL(vp, inode, filp, fl, cmd, arg, rv) \ | ||
375 | rv = _VOP_(vop_ioctl, vp)((vp)->v_fbhv,inode,filp,fl,cmd,arg) | ||
376 | #define VOP_IFLUSH(vp, flags, rv) \ | ||
377 | rv = _VOP_(vop_iflush, vp)((vp)->v_fbhv, flags) | ||
378 | |||
379 | /* | ||
380 | * Flags for read/write calls - same values as IRIX | ||
381 | */ | ||
382 | #define IO_ISAIO 0x00001 /* don't wait for completion */ | ||
383 | #define IO_ISDIRECT 0x00004 /* bypass page cache */ | ||
384 | #define IO_INVIS 0x00020 /* don't update inode timestamps */ | ||
385 | |||
386 | /* | ||
387 | * Flags for VOP_IFLUSH call | ||
388 | */ | ||
389 | #define FLUSH_SYNC 1 /* wait for flush to complete */ | ||
390 | #define FLUSH_INODE 2 /* flush the inode itself */ | ||
391 | #define FLUSH_LOG 4 /* force the last log entry for | ||
392 | * this inode out to disk */ | ||
393 | |||
394 | /* | ||
395 | * Flush/Invalidate options for VOP_TOSS_PAGES, VOP_FLUSHINVAL_PAGES and | ||
396 | * VOP_FLUSH_PAGES. | ||
397 | */ | ||
398 | #define FI_NONE 0 /* none */ | ||
399 | #define FI_REMAPF 1 /* Do a remapf prior to the operation */ | ||
400 | #define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation. | ||
401 | Prevent VM access to the pages until | ||
402 | the operation completes. */ | ||
403 | |||
404 | /* | ||
405 | * Vnode attributes. va_mask indicates those attributes the caller | ||
406 | * wants to set or extract. | ||
407 | */ | ||
408 | typedef struct vattr { | ||
409 | int va_mask; /* bit-mask of attributes present */ | ||
410 | enum vtype va_type; /* vnode type (for create) */ | ||
411 | mode_t va_mode; /* file access mode and type */ | ||
412 | nlink_t va_nlink; /* number of references to file */ | ||
413 | uid_t va_uid; /* owner user id */ | ||
414 | gid_t va_gid; /* owner group id */ | ||
415 | xfs_ino_t va_nodeid; /* file id */ | ||
416 | xfs_off_t va_size; /* file size in bytes */ | ||
417 | u_long va_blocksize; /* blocksize preferred for i/o */ | ||
418 | struct timespec va_atime; /* time of last access */ | ||
419 | struct timespec va_mtime; /* time of last modification */ | ||
420 | struct timespec va_ctime; /* time file changed */ | ||
421 | u_int va_gen; /* generation number of file */ | ||
422 | xfs_dev_t va_rdev; /* device the special file represents */ | ||
423 | __int64_t va_nblocks; /* number of blocks allocated */ | ||
424 | u_long va_xflags; /* random extended file flags */ | ||
425 | u_long va_extsize; /* file extent size */ | ||
426 | u_long va_nextents; /* number of extents in file */ | ||
427 | u_long va_anextents; /* number of attr extents in file */ | ||
428 | int va_projid; /* project id */ | ||
429 | } vattr_t; | ||
430 | |||
431 | /* | ||
432 | * setattr or getattr attributes | ||
433 | */ | ||
434 | #define XFS_AT_TYPE 0x00000001 | ||
435 | #define XFS_AT_MODE 0x00000002 | ||
436 | #define XFS_AT_UID 0x00000004 | ||
437 | #define XFS_AT_GID 0x00000008 | ||
438 | #define XFS_AT_FSID 0x00000010 | ||
439 | #define XFS_AT_NODEID 0x00000020 | ||
440 | #define XFS_AT_NLINK 0x00000040 | ||
441 | #define XFS_AT_SIZE 0x00000080 | ||
442 | #define XFS_AT_ATIME 0x00000100 | ||
443 | #define XFS_AT_MTIME 0x00000200 | ||
444 | #define XFS_AT_CTIME 0x00000400 | ||
445 | #define XFS_AT_RDEV 0x00000800 | ||
446 | #define XFS_AT_BLKSIZE 0x00001000 | ||
447 | #define XFS_AT_NBLOCKS 0x00002000 | ||
448 | #define XFS_AT_VCODE 0x00004000 | ||
449 | #define XFS_AT_MAC 0x00008000 | ||
450 | #define XFS_AT_UPDATIME 0x00010000 | ||
451 | #define XFS_AT_UPDMTIME 0x00020000 | ||
452 | #define XFS_AT_UPDCTIME 0x00040000 | ||
453 | #define XFS_AT_ACL 0x00080000 | ||
454 | #define XFS_AT_CAP 0x00100000 | ||
455 | #define XFS_AT_INF 0x00200000 | ||
456 | #define XFS_AT_XFLAGS 0x00400000 | ||
457 | #define XFS_AT_EXTSIZE 0x00800000 | ||
458 | #define XFS_AT_NEXTENTS 0x01000000 | ||
459 | #define XFS_AT_ANEXTENTS 0x02000000 | ||
460 | #define XFS_AT_PROJID 0x04000000 | ||
461 | #define XFS_AT_SIZE_NOPERM 0x08000000 | ||
462 | #define XFS_AT_GENCOUNT 0x10000000 | ||
463 | |||
464 | #define XFS_AT_ALL (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ | ||
465 | XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ | ||
466 | XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\ | ||
467 | XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\ | ||
468 | XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\ | ||
469 | XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT) | ||
470 | |||
471 | #define XFS_AT_STAT (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ | ||
472 | XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ | ||
473 | XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\ | ||
474 | XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_PROJID) | ||
475 | |||
476 | #define XFS_AT_TIMES (XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME) | ||
477 | |||
478 | #define XFS_AT_UPDTIMES (XFS_AT_UPDATIME|XFS_AT_UPDMTIME|XFS_AT_UPDCTIME) | ||
479 | |||
480 | #define XFS_AT_NOSET (XFS_AT_NLINK|XFS_AT_RDEV|XFS_AT_FSID|XFS_AT_NODEID|\ | ||
481 | XFS_AT_TYPE|XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|\ | ||
482 | XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_GENCOUNT) | ||
483 | |||
484 | /* | ||
485 | * Modes. | ||
486 | */ | ||
487 | #define VSUID S_ISUID /* set user id on execution */ | ||
488 | #define VSGID S_ISGID /* set group id on execution */ | ||
489 | #define VSVTX S_ISVTX /* save swapped text even after use */ | ||
490 | #define VREAD S_IRUSR /* read, write, execute permissions */ | ||
491 | #define VWRITE S_IWUSR | ||
492 | #define VEXEC S_IXUSR | ||
493 | |||
494 | #define MODEMASK S_IALLUGO /* mode bits plus permission bits */ | ||
495 | |||
496 | /* | ||
497 | * Check whether mandatory file locking is enabled. | ||
498 | */ | ||
499 | #define MANDLOCK(vp, mode) \ | ||
500 | ((vp)->v_type == VREG && ((mode) & (VSGID|(VEXEC>>3))) == VSGID) | ||
501 | |||
502 | extern void vn_init(void); | ||
503 | extern int vn_wait(struct vnode *); | ||
504 | extern vnode_t *vn_initialize(struct inode *); | ||
505 | |||
506 | /* | ||
507 | * Acquiring and invalidating vnodes: | ||
508 | * | ||
509 | * if (vn_get(vp, version, 0)) | ||
510 | * ...; | ||
511 | * vn_purge(vp, version); | ||
512 | * | ||
513 | * vn_get and vn_purge must be called with vmap_t arguments, sampled | ||
514 | * while a lock that the vnode's VOP_RECLAIM function acquires is | ||
515 | * held, to ensure that the vnode sampled with the lock held isn't | ||
516 | * recycled (VOP_RECLAIMed) or deallocated between the release of the lock | ||
517 | * and the subsequent vn_get or vn_purge. | ||
518 | */ | ||
519 | |||
520 | /* | ||
521 | * vnode_map structures _must_ match vn_epoch and vnode structure sizes. | ||
522 | */ | ||
523 | typedef struct vnode_map { | ||
524 | vfs_t *v_vfsp; | ||
525 | vnumber_t v_number; /* in-core vnode number */ | ||
526 | xfs_ino_t v_ino; /* inode # */ | ||
527 | } vmap_t; | ||
528 | |||
529 | #define VMAP(vp, vmap) {(vmap).v_vfsp = (vp)->v_vfsp, \ | ||
530 | (vmap).v_number = (vp)->v_number, \ | ||
531 | (vmap).v_ino = (vp)->v_inode.i_ino; } | ||
532 | |||
533 | extern void vn_purge(struct vnode *, vmap_t *); | ||
534 | extern vnode_t *vn_get(struct vnode *, vmap_t *); | ||
535 | extern int vn_revalidate(struct vnode *); | ||
536 | extern void vn_revalidate_core(struct vnode *, vattr_t *); | ||
537 | extern void vn_remove(struct vnode *); | ||
538 | |||
539 | static inline int vn_count(struct vnode *vp) | ||
540 | { | ||
541 | return atomic_read(&LINVFS_GET_IP(vp)->i_count); | ||
542 | } | ||
543 | |||
544 | /* | ||
545 | * Vnode reference counting functions (and macros for compatibility). | ||
546 | */ | ||
547 | extern vnode_t *vn_hold(struct vnode *); | ||
548 | extern void vn_rele(struct vnode *); | ||
549 | |||
550 | #if defined(XFS_VNODE_TRACE) | ||
551 | #define VN_HOLD(vp) \ | ||
552 | ((void)vn_hold(vp), \ | ||
553 | vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address)) | ||
554 | #define VN_RELE(vp) \ | ||
555 | (vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \ | ||
556 | iput(LINVFS_GET_IP(vp))) | ||
557 | #else | ||
558 | #define VN_HOLD(vp) ((void)vn_hold(vp)) | ||
559 | #define VN_RELE(vp) (iput(LINVFS_GET_IP(vp))) | ||
560 | #endif | ||
561 | |||
562 | /* | ||
563 | * Vname handling macros. | ||
564 | */ | ||
565 | #define VNAME(dentry) ((char *) (dentry)->d_name.name) | ||
566 | #define VNAMELEN(dentry) ((dentry)->d_name.len) | ||
567 | #define VNAME_TO_VNODE(dentry) (LINVFS_GET_VP((dentry)->d_inode)) | ||
568 | |||
569 | /* | ||
570 | * Vnode spinlock manipulation. | ||
571 | */ | ||
572 | #define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock) | ||
573 | #define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s) | ||
574 | #define VN_FLAGSET(vp,b) vn_flagset(vp,b) | ||
575 | #define VN_FLAGCLR(vp,b) vn_flagclr(vp,b) | ||
576 | |||
577 | static __inline__ void vn_flagset(struct vnode *vp, uint flag) | ||
578 | { | ||
579 | spin_lock(&vp->v_lock); | ||
580 | vp->v_flag |= flag; | ||
581 | spin_unlock(&vp->v_lock); | ||
582 | } | ||
583 | |||
584 | static __inline__ void vn_flagclr(struct vnode *vp, uint flag) | ||
585 | { | ||
586 | spin_lock(&vp->v_lock); | ||
587 | vp->v_flag &= ~flag; | ||
588 | spin_unlock(&vp->v_lock); | ||
589 | } | ||
590 | |||
591 | /* | ||
592 | * Update modify/access/change times on the vnode | ||
593 | */ | ||
594 | #define VN_MTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_mtime = *(tvp)) | ||
595 | #define VN_ATIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_atime = *(tvp)) | ||
596 | #define VN_CTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_ctime = *(tvp)) | ||
597 | |||
598 | /* | ||
599 | * Dealing with bad inodes | ||
600 | */ | ||
601 | static inline void vn_mark_bad(struct vnode *vp) | ||
602 | { | ||
603 | make_bad_inode(LINVFS_GET_IP(vp)); | ||
604 | } | ||
605 | |||
606 | static inline int VN_BAD(struct vnode *vp) | ||
607 | { | ||
608 | return is_bad_inode(LINVFS_GET_IP(vp)); | ||
609 | } | ||
610 | |||
611 | /* | ||
612 | * Some useful predicates. | ||
613 | */ | ||
614 | #define VN_MAPPED(vp) mapping_mapped(LINVFS_GET_IP(vp)->i_mapping) | ||
615 | #define VN_CACHED(vp) (LINVFS_GET_IP(vp)->i_mapping->nrpages) | ||
616 | #define VN_DIRTY(vp) mapping_tagged(LINVFS_GET_IP(vp)->i_mapping, \ | ||
617 | PAGECACHE_TAG_DIRTY) | ||
618 | #define VMODIFY(vp) VN_FLAGSET(vp, VMODIFIED) | ||
619 | #define VUNMODIFY(vp) VN_FLAGCLR(vp, VMODIFIED) | ||
620 | |||
621 | /* | ||
622 | * Flags to VOP_SETATTR/VOP_GETATTR. | ||
623 | */ | ||
624 | #define ATTR_UTIME 0x01 /* non-default utime(2) request */ | ||
625 | #define ATTR_DMI 0x08 /* invocation from a DMI function */ | ||
626 | #define ATTR_LAZY 0x80 /* set/get attributes lazily */ | ||
627 | #define ATTR_NONBLOCK 0x100 /* return EAGAIN if operation would block */ | ||
628 | |||
629 | /* | ||
630 | * Flags to VOP_FSYNC and VOP_RECLAIM. | ||
631 | */ | ||
632 | #define FSYNC_NOWAIT 0 /* asynchronous flush */ | ||
633 | #define FSYNC_WAIT 0x1 /* synchronous fsync or forced reclaim */ | ||
634 | #define FSYNC_INVAL 0x2 /* flush and invalidate cached data */ | ||
635 | #define FSYNC_DATA 0x4 /* synchronous fsync of data only */ | ||
636 | |||
637 | /* | ||
638 | * Tracking vnode activity. | ||
639 | */ | ||
640 | #if defined(XFS_VNODE_TRACE) | ||
641 | |||
642 | #define VNODE_TRACE_SIZE 16 /* number of trace entries */ | ||
643 | #define VNODE_KTRACE_ENTRY 1 | ||
644 | #define VNODE_KTRACE_EXIT 2 | ||
645 | #define VNODE_KTRACE_HOLD 3 | ||
646 | #define VNODE_KTRACE_REF 4 | ||
647 | #define VNODE_KTRACE_RELE 5 | ||
648 | |||
649 | extern void vn_trace_entry(struct vnode *, char *, inst_t *); | ||
650 | extern void vn_trace_exit(struct vnode *, char *, inst_t *); | ||
651 | extern void vn_trace_hold(struct vnode *, char *, int, inst_t *); | ||
652 | extern void vn_trace_ref(struct vnode *, char *, int, inst_t *); | ||
653 | extern void vn_trace_rele(struct vnode *, char *, int, inst_t *); | ||
654 | |||
655 | #define VN_TRACE(vp) \ | ||
656 | vn_trace_ref(vp, __FILE__, __LINE__, (inst_t *)__return_address) | ||
657 | #else | ||
658 | #define vn_trace_entry(a,b,c) | ||
659 | #define vn_trace_exit(a,b,c) | ||
660 | #define vn_trace_hold(a,b,c,d) | ||
661 | #define vn_trace_ref(a,b,c,d) | ||
662 | #define vn_trace_rele(a,b,c,d) | ||
663 | #define VN_TRACE(vp) | ||
664 | #endif | ||
665 | |||
666 | #endif /* __XFS_VNODE_H__ */ | ||