Commit | Line | Data |
---|---|---|
2bad8471 EVH |
1 | /* |
2 | * linux/fs/9p/vfs_inode.c | |
3 | * | |
73c592b9 | 4 | * This file contains vfs inode ops for the 9P2000 protocol. |
2bad8471 EVH |
5 | * |
6 | * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> | |
7 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
42e8c509 EVH |
10 | * it under the terms of the GNU General Public License version 2 |
11 | * as published by the Free Software Foundation. | |
2bad8471 EVH |
12 | * |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to: | |
20 | * Free Software Foundation | |
21 | * 51 Franklin Street, Fifth Floor | |
22 | * Boston, MA 02111-1301 USA | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/fs.h> | |
29 | #include <linux/file.h> | |
30 | #include <linux/pagemap.h> | |
31 | #include <linux/stat.h> | |
32 | #include <linux/string.h> | |
2bad8471 EVH |
33 | #include <linux/inet.h> |
34 | #include <linux/namei.h> | |
35 | #include <linux/idr.h> | |
e8edc6e0 | 36 | #include <linux/sched.h> |
5a0e3ad6 | 37 | #include <linux/slab.h> |
ebf46264 | 38 | #include <linux/xattr.h> |
85ff872d | 39 | #include <linux/posix_acl.h> |
bd238fb4 LI |
40 | #include <net/9p/9p.h> |
41 | #include <net/9p/client.h> | |
2bad8471 | 42 | |
2bad8471 | 43 | #include "v9fs.h" |
2bad8471 | 44 | #include "v9fs_vfs.h" |
2bad8471 | 45 | #include "fid.h" |
60e78d2c | 46 | #include "cache.h" |
ebf46264 | 47 | #include "xattr.h" |
85ff872d | 48 | #include "acl.h" |
2bad8471 | 49 | |
754661f1 | 50 | static const struct inode_operations v9fs_dir_inode_operations; |
9b6533c9 | 51 | static const struct inode_operations v9fs_dir_inode_operations_dotu; |
754661f1 AV |
52 | static const struct inode_operations v9fs_file_inode_operations; |
53 | static const struct inode_operations v9fs_symlink_inode_operations; | |
f5fc6145 | 54 | |
2bad8471 EVH |
55 | /** |
56 | * unixmode2p9mode - convert unix mode bits to plan 9 | |
57 | * @v9ses: v9fs session information | |
58 | * @mode: mode to convert | |
59 | * | |
60 | */ | |
61 | ||
73c592b9 | 62 | static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode) |
2bad8471 EVH |
63 | { |
64 | int res; | |
65 | res = mode & 0777; | |
66 | if (S_ISDIR(mode)) | |
bd238fb4 | 67 | res |= P9_DMDIR; |
dd6102fb | 68 | if (v9fs_proto_dotu(v9ses)) { |
2bad8471 | 69 | if (S_ISLNK(mode)) |
bd238fb4 | 70 | res |= P9_DMSYMLINK; |
2bad8471 EVH |
71 | if (v9ses->nodev == 0) { |
72 | if (S_ISSOCK(mode)) | |
bd238fb4 | 73 | res |= P9_DMSOCKET; |
2bad8471 | 74 | if (S_ISFIFO(mode)) |
bd238fb4 | 75 | res |= P9_DMNAMEDPIPE; |
2bad8471 | 76 | if (S_ISBLK(mode)) |
bd238fb4 | 77 | res |= P9_DMDEVICE; |
2bad8471 | 78 | if (S_ISCHR(mode)) |
bd238fb4 | 79 | res |= P9_DMDEVICE; |
2bad8471 EVH |
80 | } |
81 | ||
82 | if ((mode & S_ISUID) == S_ISUID) | |
bd238fb4 | 83 | res |= P9_DMSETUID; |
2bad8471 | 84 | if ((mode & S_ISGID) == S_ISGID) |
bd238fb4 | 85 | res |= P9_DMSETGID; |
d199d652 AL |
86 | if ((mode & S_ISVTX) == S_ISVTX) |
87 | res |= P9_DMSETVTX; | |
bd238fb4 LI |
88 | if ((mode & P9_DMLINK)) |
89 | res |= P9_DMLINK; | |
2bad8471 EVH |
90 | } |
91 | ||
92 | return res; | |
93 | } | |
94 | ||
95 | /** | |
96 | * p9mode2unixmode- convert plan9 mode bits to unix mode bits | |
97 | * @v9ses: v9fs session information | |
45089142 AK |
98 | * @stat: p9_wstat from which mode need to be derived |
99 | * @rdev: major number, minor number in case of device files. | |
2bad8471 EVH |
100 | * |
101 | */ | |
45089142 AK |
102 | static int p9mode2unixmode(struct v9fs_session_info *v9ses, |
103 | struct p9_wstat *stat, dev_t *rdev) | |
2bad8471 EVH |
104 | { |
105 | int res; | |
45089142 | 106 | int mode = stat->mode; |
2bad8471 | 107 | |
45089142 AK |
108 | res = mode & S_IALLUGO; |
109 | *rdev = 0; | |
2bad8471 | 110 | |
bd238fb4 | 111 | if ((mode & P9_DMDIR) == P9_DMDIR) |
2bad8471 | 112 | res |= S_IFDIR; |
dd6102fb | 113 | else if ((mode & P9_DMSYMLINK) && (v9fs_proto_dotu(v9ses))) |
2bad8471 | 114 | res |= S_IFLNK; |
dd6102fb | 115 | else if ((mode & P9_DMSOCKET) && (v9fs_proto_dotu(v9ses)) |
2bad8471 EVH |
116 | && (v9ses->nodev == 0)) |
117 | res |= S_IFSOCK; | |
dd6102fb | 118 | else if ((mode & P9_DMNAMEDPIPE) && (v9fs_proto_dotu(v9ses)) |
2bad8471 EVH |
119 | && (v9ses->nodev == 0)) |
120 | res |= S_IFIFO; | |
dd6102fb | 121 | else if ((mode & P9_DMDEVICE) && (v9fs_proto_dotu(v9ses)) |
45089142 AK |
122 | && (v9ses->nodev == 0)) { |
123 | char type = 0, ext[32]; | |
124 | int major = -1, minor = -1; | |
125 | ||
126 | strncpy(ext, stat->extension, sizeof(ext)); | |
127 | sscanf(ext, "%c %u %u", &type, &major, &minor); | |
128 | switch (type) { | |
129 | case 'c': | |
130 | res |= S_IFCHR; | |
131 | break; | |
132 | case 'b': | |
133 | res |= S_IFBLK; | |
134 | break; | |
135 | default: | |
136 | P9_DPRINTK(P9_DEBUG_ERROR, | |
137 | "Unknown special type %c %s\n", type, | |
138 | stat->extension); | |
139 | }; | |
140 | *rdev = MKDEV(major, minor); | |
141 | } else | |
2bad8471 EVH |
142 | res |= S_IFREG; |
143 | ||
dd6102fb | 144 | if (v9fs_proto_dotu(v9ses)) { |
bd238fb4 | 145 | if ((mode & P9_DMSETUID) == P9_DMSETUID) |
2bad8471 EVH |
146 | res |= S_ISUID; |
147 | ||
bd238fb4 | 148 | if ((mode & P9_DMSETGID) == P9_DMSETGID) |
2bad8471 | 149 | res |= S_ISGID; |
d199d652 AL |
150 | |
151 | if ((mode & P9_DMSETVTX) == P9_DMSETVTX) | |
152 | res |= S_ISVTX; | |
2bad8471 | 153 | } |
2bad8471 EVH |
154 | return res; |
155 | } | |
156 | ||
ee443996 EVH |
157 | /** |
158 | * v9fs_uflags2omode- convert posix open flags to plan 9 mode bits | |
159 | * @uflags: flags to convert | |
2e4bef41 | 160 | * @extended: if .u extensions are active |
ee443996 EVH |
161 | */ |
162 | ||
2e4bef41 | 163 | int v9fs_uflags2omode(int uflags, int extended) |
6a3124a3 LI |
164 | { |
165 | int ret; | |
166 | ||
167 | ret = 0; | |
168 | switch (uflags&3) { | |
169 | default: | |
170 | case O_RDONLY: | |
bd238fb4 | 171 | ret = P9_OREAD; |
6a3124a3 LI |
172 | break; |
173 | ||
174 | case O_WRONLY: | |
bd238fb4 | 175 | ret = P9_OWRITE; |
6a3124a3 LI |
176 | break; |
177 | ||
178 | case O_RDWR: | |
bd238fb4 | 179 | ret = P9_ORDWR; |
6a3124a3 LI |
180 | break; |
181 | } | |
182 | ||
6a3124a3 | 183 | if (uflags & O_TRUNC) |
bd238fb4 | 184 | ret |= P9_OTRUNC; |
6a3124a3 | 185 | |
2e4bef41 EVH |
186 | if (extended) { |
187 | if (uflags & O_EXCL) | |
188 | ret |= P9_OEXCL; | |
189 | ||
190 | if (uflags & O_APPEND) | |
191 | ret |= P9_OAPPEND; | |
192 | } | |
6a3124a3 LI |
193 | |
194 | return ret; | |
195 | } | |
196 | ||
2bad8471 | 197 | /** |
531b1094 | 198 | * v9fs_blank_wstat - helper function to setup a 9P stat structure |
531b1094 | 199 | * @wstat: structure to initialize |
2bad8471 EVH |
200 | * |
201 | */ | |
202 | ||
7a4439c4 | 203 | void |
bd238fb4 | 204 | v9fs_blank_wstat(struct p9_wstat *wstat) |
2bad8471 | 205 | { |
531b1094 LI |
206 | wstat->type = ~0; |
207 | wstat->dev = ~0; | |
208 | wstat->qid.type = ~0; | |
209 | wstat->qid.version = ~0; | |
210 | *((long long *)&wstat->qid.path) = ~0; | |
211 | wstat->mode = ~0; | |
212 | wstat->atime = ~0; | |
213 | wstat->mtime = ~0; | |
214 | wstat->length = ~0; | |
215 | wstat->name = NULL; | |
216 | wstat->uid = NULL; | |
217 | wstat->gid = NULL; | |
218 | wstat->muid = NULL; | |
219 | wstat->n_uid = ~0; | |
220 | wstat->n_gid = ~0; | |
221 | wstat->n_muid = ~0; | |
222 | wstat->extension = NULL; | |
2bad8471 EVH |
223 | } |
224 | ||
60e78d2c AK |
225 | /** |
226 | * v9fs_alloc_inode - helper function to allocate an inode | |
60e78d2c AK |
227 | * |
228 | */ | |
60e78d2c AK |
229 | struct inode *v9fs_alloc_inode(struct super_block *sb) |
230 | { | |
a78ce05d AK |
231 | struct v9fs_inode *v9inode; |
232 | v9inode = (struct v9fs_inode *)kmem_cache_alloc(v9fs_inode_cache, | |
233 | GFP_KERNEL); | |
234 | if (!v9inode) | |
60e78d2c | 235 | return NULL; |
a78ce05d AK |
236 | #ifdef CONFIG_9P_FSCACHE |
237 | v9inode->fscache = NULL; | |
a78ce05d AK |
238 | spin_lock_init(&v9inode->fscache_lock); |
239 | #endif | |
6b39f6d2 | 240 | v9inode->writeback_fid = NULL; |
b3cbea03 | 241 | v9inode->cache_validity = 0; |
5a7e0a8c | 242 | mutex_init(&v9inode->v_mutex); |
a78ce05d | 243 | return &v9inode->vfs_inode; |
60e78d2c AK |
244 | } |
245 | ||
246 | /** | |
247 | * v9fs_destroy_inode - destroy an inode | |
248 | * | |
249 | */ | |
250 | ||
fa0d7e3d | 251 | static void v9fs_i_callback(struct rcu_head *head) |
60e78d2c | 252 | { |
fa0d7e3d NP |
253 | struct inode *inode = container_of(head, struct inode, i_rcu); |
254 | INIT_LIST_HEAD(&inode->i_dentry); | |
a78ce05d | 255 | kmem_cache_free(v9fs_inode_cache, V9FS_I(inode)); |
60e78d2c | 256 | } |
fa0d7e3d NP |
257 | |
258 | void v9fs_destroy_inode(struct inode *inode) | |
259 | { | |
260 | call_rcu(&inode->i_rcu, v9fs_i_callback); | |
261 | } | |
60e78d2c | 262 | |
5ffc0cb3 | 263 | int v9fs_init_inode(struct v9fs_session_info *v9ses, |
45089142 | 264 | struct inode *inode, int mode, dev_t rdev) |
2bad8471 | 265 | { |
5ffc0cb3 | 266 | int err = 0; |
2bb54115 | 267 | |
217f206d | 268 | inode_init_owner(inode, NULL, mode); |
2bb54115 | 269 | inode->i_blocks = 0; |
45089142 | 270 | inode->i_rdev = rdev; |
2bb54115 AK |
271 | inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; |
272 | inode->i_mapping->a_ops = &v9fs_addr_operations; | |
273 | ||
274 | switch (mode & S_IFMT) { | |
275 | case S_IFIFO: | |
276 | case S_IFBLK: | |
277 | case S_IFCHR: | |
278 | case S_IFSOCK: | |
4b43516a MK |
279 | if (v9fs_proto_dotl(v9ses)) { |
280 | inode->i_op = &v9fs_file_inode_operations_dotl; | |
281 | inode->i_fop = &v9fs_file_operations_dotl; | |
282 | } else if (v9fs_proto_dotu(v9ses)) { | |
283 | inode->i_op = &v9fs_file_inode_operations; | |
284 | inode->i_fop = &v9fs_file_operations; | |
285 | } else { | |
bd238fb4 | 286 | P9_DPRINTK(P9_DEBUG_ERROR, |
2bb54115 AK |
287 | "special files without extended mode\n"); |
288 | err = -EINVAL; | |
289 | goto error; | |
2bad8471 | 290 | } |
2bb54115 AK |
291 | init_special_inode(inode, inode->i_mode, inode->i_rdev); |
292 | break; | |
293 | case S_IFREG: | |
9b6533c9 SK |
294 | if (v9fs_proto_dotl(v9ses)) { |
295 | inode->i_op = &v9fs_file_inode_operations_dotl; | |
29236f4e AK |
296 | if (v9ses->cache) |
297 | inode->i_fop = | |
298 | &v9fs_cached_file_operations_dotl; | |
299 | else | |
300 | inode->i_fop = &v9fs_file_operations_dotl; | |
9b6533c9 SK |
301 | } else { |
302 | inode->i_op = &v9fs_file_inode_operations; | |
29236f4e AK |
303 | if (v9ses->cache) |
304 | inode->i_fop = &v9fs_cached_file_operations; | |
305 | else | |
306 | inode->i_fop = &v9fs_file_operations; | |
9b6533c9 SK |
307 | } |
308 | ||
2bb54115 AK |
309 | break; |
310 | case S_IFLNK: | |
9b6533c9 SK |
311 | if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)) { |
312 | P9_DPRINTK(P9_DEBUG_ERROR, "extended modes used with " | |
313 | "legacy protocol.\n"); | |
2bb54115 AK |
314 | err = -EINVAL; |
315 | goto error; | |
316 | } | |
9b6533c9 SK |
317 | |
318 | if (v9fs_proto_dotl(v9ses)) | |
319 | inode->i_op = &v9fs_symlink_inode_operations_dotl; | |
320 | else | |
321 | inode->i_op = &v9fs_symlink_inode_operations; | |
322 | ||
2bb54115 AK |
323 | break; |
324 | case S_IFDIR: | |
325 | inc_nlink(inode); | |
9b6533c9 SK |
326 | if (v9fs_proto_dotl(v9ses)) |
327 | inode->i_op = &v9fs_dir_inode_operations_dotl; | |
328 | else if (v9fs_proto_dotu(v9ses)) | |
329 | inode->i_op = &v9fs_dir_inode_operations_dotu; | |
2bb54115 AK |
330 | else |
331 | inode->i_op = &v9fs_dir_inode_operations; | |
9b6533c9 SK |
332 | |
333 | if (v9fs_proto_dotl(v9ses)) | |
334 | inode->i_fop = &v9fs_dir_operations_dotl; | |
335 | else | |
336 | inode->i_fop = &v9fs_dir_operations; | |
337 | ||
2bb54115 AK |
338 | break; |
339 | default: | |
340 | P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n", | |
341 | mode, mode & S_IFMT); | |
342 | err = -EINVAL; | |
343 | goto error; | |
2bad8471 | 344 | } |
5ffc0cb3 AK |
345 | error: |
346 | return err; | |
2bb54115 | 347 | |
5ffc0cb3 | 348 | } |
2bb54115 | 349 | |
5ffc0cb3 AK |
350 | /** |
351 | * v9fs_get_inode - helper function to setup an inode | |
352 | * @sb: superblock | |
353 | * @mode: mode to setup inode with | |
354 | * | |
355 | */ | |
356 | ||
45089142 | 357 | struct inode *v9fs_get_inode(struct super_block *sb, int mode, dev_t rdev) |
5ffc0cb3 AK |
358 | { |
359 | int err; | |
360 | struct inode *inode; | |
361 | struct v9fs_session_info *v9ses = sb->s_fs_info; | |
362 | ||
363 | P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %o\n", sb, mode); | |
364 | ||
365 | inode = new_inode(sb); | |
366 | if (!inode) { | |
367 | P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n"); | |
368 | return ERR_PTR(-ENOMEM); | |
369 | } | |
45089142 | 370 | err = v9fs_init_inode(v9ses, inode, mode, rdev); |
5ffc0cb3 AK |
371 | if (err) { |
372 | iput(inode); | |
373 | return ERR_PTR(err); | |
374 | } | |
375 | return inode; | |
2bad8471 EVH |
376 | } |
377 | ||
bd238fb4 | 378 | /* |
6a3124a3 LI |
379 | static struct v9fs_fid* |
380 | v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry) | |
381 | { | |
382 | int err; | |
736c4b85 | 383 | int nfid; |
6a3124a3 LI |
384 | struct v9fs_fid *ret; |
385 | struct v9fs_fcall *fcall; | |
386 | ||
387 | nfid = v9fs_get_idpool(&v9ses->fidpool); | |
388 | if (nfid < 0) { | |
0b8dd177 | 389 | eprintk(KERN_WARNING, "no free fids available\n"); |
731805b4 | 390 | return ERR_PTR(-ENOSPC); |
0b8dd177 LI |
391 | } |
392 | ||
6a3124a3 LI |
393 | err = v9fs_t_walk(v9ses, fid, nfid, (char *) dentry->d_name.name, |
394 | &fcall); | |
395 | ||
396 | if (err < 0) { | |
41e5a6ac LI |
397 | if (fcall && fcall->id == RWALK) |
398 | goto clunk_fid; | |
399 | ||
6a3124a3 LI |
400 | PRINT_FCALL_ERROR("walk error", fcall); |
401 | v9fs_put_idpool(nfid, &v9ses->fidpool); | |
402 | goto error; | |
0b8dd177 | 403 | } |
6a3124a3 | 404 | |
3cf6429a LI |
405 | kfree(fcall); |
406 | fcall = NULL; | |
6a3124a3 LI |
407 | ret = v9fs_fid_create(v9ses, nfid); |
408 | if (!ret) { | |
409 | err = -ENOMEM; | |
410 | goto clunk_fid; | |
411 | } | |
0b8dd177 | 412 | |
6a3124a3 LI |
413 | err = v9fs_fid_insert(ret, dentry); |
414 | if (err < 0) { | |
415 | v9fs_fid_destroy(ret); | |
416 | goto clunk_fid; | |
0b8dd177 | 417 | } |
2bad8471 | 418 | |
6a3124a3 | 419 | return ret; |
2bad8471 | 420 | |
6a3124a3 LI |
421 | clunk_fid: |
422 | v9fs_t_clunk(v9ses, nfid); | |
2bad8471 | 423 | |
6a3124a3 LI |
424 | error: |
425 | kfree(fcall); | |
426 | return ERR_PTR(err); | |
427 | } | |
bd238fb4 | 428 | */ |
2bad8471 | 429 | |
60e78d2c AK |
430 | |
431 | /** | |
432 | * v9fs_clear_inode - release an inode | |
433 | * @inode: inode to release | |
434 | * | |
435 | */ | |
b57922d9 | 436 | void v9fs_evict_inode(struct inode *inode) |
60e78d2c | 437 | { |
6b39f6d2 AK |
438 | struct v9fs_inode *v9inode = V9FS_I(inode); |
439 | ||
b57922d9 AV |
440 | truncate_inode_pages(inode->i_mapping, 0); |
441 | end_writeback(inode); | |
60e78d2c AK |
442 | filemap_fdatawrite(inode->i_mapping); |
443 | ||
444 | #ifdef CONFIG_9P_FSCACHE | |
445 | v9fs_cache_inode_put_cookie(inode); | |
446 | #endif | |
6b39f6d2 AK |
447 | /* clunk the fid stashed in writeback_fid */ |
448 | if (v9inode->writeback_fid) { | |
449 | p9_client_clunk(v9inode->writeback_fid); | |
450 | v9inode->writeback_fid = NULL; | |
3cf387d7 | 451 | } |
60e78d2c AK |
452 | } |
453 | ||
fd2421f5 AK |
454 | static int v9fs_test_inode(struct inode *inode, void *data) |
455 | { | |
456 | int umode; | |
45089142 | 457 | dev_t rdev; |
fd2421f5 AK |
458 | struct v9fs_inode *v9inode = V9FS_I(inode); |
459 | struct p9_wstat *st = (struct p9_wstat *)data; | |
460 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode); | |
461 | ||
45089142 | 462 | umode = p9mode2unixmode(v9ses, st, &rdev); |
fd2421f5 AK |
463 | /* don't match inode of different type */ |
464 | if ((inode->i_mode & S_IFMT) != (umode & S_IFMT)) | |
465 | return 0; | |
466 | ||
467 | /* compare qid details */ | |
468 | if (memcmp(&v9inode->qid.version, | |
469 | &st->qid.version, sizeof(v9inode->qid.version))) | |
470 | return 0; | |
471 | ||
472 | if (v9inode->qid.type != st->qid.type) | |
473 | return 0; | |
474 | return 1; | |
475 | } | |
476 | ||
ed80fcfa AK |
477 | static int v9fs_test_new_inode(struct inode *inode, void *data) |
478 | { | |
479 | return 0; | |
480 | } | |
481 | ||
fd2421f5 AK |
482 | static int v9fs_set_inode(struct inode *inode, void *data) |
483 | { | |
484 | struct v9fs_inode *v9inode = V9FS_I(inode); | |
485 | struct p9_wstat *st = (struct p9_wstat *)data; | |
486 | ||
487 | memcpy(&v9inode->qid, &st->qid, sizeof(st->qid)); | |
488 | return 0; | |
489 | } | |
490 | ||
5ffc0cb3 AK |
491 | static struct inode *v9fs_qid_iget(struct super_block *sb, |
492 | struct p9_qid *qid, | |
ed80fcfa AK |
493 | struct p9_wstat *st, |
494 | int new) | |
6a3124a3 | 495 | { |
45089142 | 496 | dev_t rdev; |
5ffc0cb3 AK |
497 | int retval, umode; |
498 | unsigned long i_ino; | |
499 | struct inode *inode; | |
500 | struct v9fs_session_info *v9ses = sb->s_fs_info; | |
ed80fcfa AK |
501 | int (*test)(struct inode *, void *); |
502 | ||
503 | if (new) | |
504 | test = v9fs_test_new_inode; | |
505 | else | |
506 | test = v9fs_test_inode; | |
2bad8471 | 507 | |
5ffc0cb3 | 508 | i_ino = v9fs_qid2ino(qid); |
ed80fcfa | 509 | inode = iget5_locked(sb, i_ino, test, v9fs_set_inode, st); |
5ffc0cb3 AK |
510 | if (!inode) |
511 | return ERR_PTR(-ENOMEM); | |
512 | if (!(inode->i_state & I_NEW)) | |
513 | return inode; | |
514 | /* | |
515 | * initialize the inode with the stat info | |
516 | * FIXME!! we may need support for stale inodes | |
517 | * later. | |
518 | */ | |
fd2421f5 | 519 | inode->i_ino = i_ino; |
45089142 AK |
520 | umode = p9mode2unixmode(v9ses, st, &rdev); |
521 | retval = v9fs_init_inode(v9ses, inode, umode, rdev); | |
5ffc0cb3 | 522 | if (retval) |
6a3124a3 | 523 | goto error; |
60e78d2c | 524 | |
5ffc0cb3 | 525 | v9fs_stat2inode(st, inode, sb); |
60e78d2c | 526 | #ifdef CONFIG_9P_FSCACHE |
5ffc0cb3 | 527 | v9fs_cache_inode_get_cookie(inode); |
60e78d2c | 528 | #endif |
5ffc0cb3 AK |
529 | unlock_new_inode(inode); |
530 | return inode; | |
6a3124a3 | 531 | error: |
5ffc0cb3 AK |
532 | unlock_new_inode(inode); |
533 | iput(inode); | |
534 | return ERR_PTR(retval); | |
535 | ||
536 | } | |
537 | ||
538 | struct inode * | |
a78ce05d | 539 | v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, |
ed80fcfa | 540 | struct super_block *sb, int new) |
5ffc0cb3 AK |
541 | { |
542 | struct p9_wstat *st; | |
543 | struct inode *inode = NULL; | |
544 | ||
545 | st = p9_client_stat(fid); | |
546 | if (IS_ERR(st)) | |
547 | return ERR_CAST(st); | |
548 | ||
ed80fcfa | 549 | inode = v9fs_qid_iget(sb, &st->qid, st, new); |
02bc3567 | 550 | p9stat_free(st); |
bd238fb4 | 551 | kfree(st); |
5ffc0cb3 | 552 | return inode; |
2bad8471 EVH |
553 | } |
554 | ||
f88657ce AK |
555 | /** |
556 | * v9fs_at_to_dotl_flags- convert Linux specific AT flags to | |
557 | * plan 9 AT flag. | |
558 | * @flags: flags to convert | |
559 | */ | |
560 | static int v9fs_at_to_dotl_flags(int flags) | |
561 | { | |
562 | int rflags = 0; | |
563 | if (flags & AT_REMOVEDIR) | |
564 | rflags |= P9_DOTL_AT_REMOVEDIR; | |
565 | return rflags; | |
566 | } | |
567 | ||
2bad8471 EVH |
568 | /** |
569 | * v9fs_remove - helper function to remove files and directories | |
73c592b9 | 570 | * @dir: directory inode that is being deleted |
48e370ff | 571 | * @dentry: dentry that is being deleted |
73c592b9 | 572 | * @rmdir: removing a directory |
2bad8471 EVH |
573 | * |
574 | */ | |
575 | ||
48e370ff | 576 | static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags) |
2bad8471 | 577 | { |
48e370ff AK |
578 | struct inode *inode; |
579 | int retval = -EOPNOTSUPP; | |
580 | struct p9_fid *v9fid, *dfid; | |
581 | struct v9fs_session_info *v9ses; | |
2bad8471 | 582 | |
48e370ff AK |
583 | P9_DPRINTK(P9_DEBUG_VFS, "inode: %p dentry: %p rmdir: %x\n", |
584 | dir, dentry, flags); | |
2bad8471 | 585 | |
48e370ff AK |
586 | v9ses = v9fs_inode2v9ses(dir); |
587 | inode = dentry->d_inode; | |
588 | dfid = v9fs_fid_lookup(dentry->d_parent); | |
589 | if (IS_ERR(dfid)) { | |
590 | retval = PTR_ERR(dfid); | |
591 | P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", retval); | |
592 | return retval; | |
593 | } | |
594 | if (v9fs_proto_dotl(v9ses)) | |
f88657ce AK |
595 | retval = p9_client_unlinkat(dfid, dentry->d_name.name, |
596 | v9fs_at_to_dotl_flags(flags)); | |
48e370ff AK |
597 | if (retval == -EOPNOTSUPP) { |
598 | /* Try the one based on path */ | |
599 | v9fid = v9fs_fid_clone(dentry); | |
600 | if (IS_ERR(v9fid)) | |
601 | return PTR_ERR(v9fid); | |
602 | retval = p9_client_remove(v9fid); | |
603 | } | |
b271ec47 AK |
604 | if (!retval) { |
605 | /* | |
606 | * directories on unlink should have zero | |
607 | * link count | |
608 | */ | |
48e370ff AK |
609 | if (flags & AT_REMOVEDIR) { |
610 | clear_nlink(inode); | |
b271ec47 AK |
611 | drop_nlink(dir); |
612 | } else | |
48e370ff | 613 | drop_nlink(inode); |
d28c61f0 | 614 | |
48e370ff | 615 | v9fs_invalidate_inode_attr(inode); |
d28c61f0 | 616 | v9fs_invalidate_inode_attr(dir); |
b271ec47 | 617 | } |
d994f405 | 618 | return retval; |
2bad8471 EVH |
619 | } |
620 | ||
621 | /** | |
bd238fb4 | 622 | * v9fs_create - Create a file |
ee443996 EVH |
623 | * @v9ses: session information |
624 | * @dir: directory that dentry is being created in | |
bd238fb4 | 625 | * @dentry: dentry that is being created |
0e15597e | 626 | * @extension: 9p2000.u extension string to support devices, etc. |
bd238fb4 LI |
627 | * @perm: create permissions |
628 | * @mode: open mode | |
2bad8471 EVH |
629 | * |
630 | */ | |
bd238fb4 LI |
631 | static struct p9_fid * |
632 | v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir, | |
633 | struct dentry *dentry, char *extension, u32 perm, u8 mode) | |
2bad8471 | 634 | { |
6a3124a3 | 635 | int err; |
bd238fb4 LI |
636 | char *name; |
637 | struct p9_fid *dfid, *ofid, *fid; | |
6a3124a3 | 638 | struct inode *inode; |
6a3124a3 | 639 | |
51a87c55 EVH |
640 | P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name); |
641 | ||
bd238fb4 LI |
642 | err = 0; |
643 | ofid = NULL; | |
644 | fid = NULL; | |
645 | name = (char *) dentry->d_name.name; | |
6d27e64d | 646 | dfid = v9fs_fid_lookup(dentry->d_parent); |
ba17674f | 647 | if (IS_ERR(dfid)) { |
da977b2c | 648 | err = PTR_ERR(dfid); |
6d27e64d VJ |
649 | P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
650 | return ERR_PTR(err); | |
da977b2c | 651 | } |
6a3124a3 | 652 | |
bd238fb4 LI |
653 | /* clone a fid to use for creation */ |
654 | ofid = p9_client_walk(dfid, 0, NULL, 1); | |
655 | if (IS_ERR(ofid)) { | |
656 | err = PTR_ERR(ofid); | |
51a87c55 | 657 | P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
6d27e64d | 658 | return ERR_PTR(err); |
bd238fb4 | 659 | } |
6a3124a3 | 660 | |
bd238fb4 | 661 | err = p9_client_fcreate(ofid, name, perm, mode, extension); |
51a87c55 EVH |
662 | if (err < 0) { |
663 | P9_DPRINTK(P9_DEBUG_VFS, "p9_client_fcreate failed %d\n", err); | |
bd238fb4 | 664 | goto error; |
51a87c55 | 665 | } |
6a3124a3 | 666 | |
bd238fb4 | 667 | /* now walk from the parent so we can get unopened fid */ |
6d27e64d | 668 | fid = p9_client_walk(dfid, 1, &name, 1); |
bd238fb4 LI |
669 | if (IS_ERR(fid)) { |
670 | err = PTR_ERR(fid); | |
51a87c55 | 671 | P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
bd238fb4 | 672 | fid = NULL; |
6a3124a3 | 673 | goto error; |
6d27e64d | 674 | } |
6a3124a3 | 675 | |
bd238fb4 | 676 | /* instantiate inode and assign the unopened fid to the dentry */ |
ed80fcfa | 677 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
6a3124a3 LI |
678 | if (IS_ERR(inode)) { |
679 | err = PTR_ERR(inode); | |
51a87c55 | 680 | P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err); |
6a3124a3 LI |
681 | goto error; |
682 | } | |
50fb6d2b AK |
683 | err = v9fs_fid_add(dentry, fid); |
684 | if (err < 0) | |
685 | goto error; | |
5441ae5e | 686 | d_instantiate(dentry, inode); |
bd238fb4 | 687 | return ofid; |
bd238fb4 | 688 | error: |
bd238fb4 LI |
689 | if (ofid) |
690 | p9_client_clunk(ofid); | |
691 | ||
692 | if (fid) | |
693 | p9_client_clunk(fid); | |
694 | ||
695 | return ERR_PTR(err); | |
696 | } | |
697 | ||
698 | /** | |
699 | * v9fs_vfs_create - VFS hook to create files | |
ee443996 | 700 | * @dir: directory inode that is being created |
bd238fb4 LI |
701 | * @dentry: dentry that is being deleted |
702 | * @mode: create permissions | |
703 | * @nd: path information | |
704 | * | |
705 | */ | |
6a3124a3 | 706 | |
bd238fb4 LI |
707 | static int |
708 | v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode, | |
709 | struct nameidata *nd) | |
710 | { | |
711 | int err; | |
712 | u32 perm; | |
713 | int flags; | |
6b39f6d2 AK |
714 | struct file *filp; |
715 | struct v9fs_inode *v9inode; | |
bd238fb4 | 716 | struct v9fs_session_info *v9ses; |
3cf387d7 | 717 | struct p9_fid *fid, *inode_fid; |
bd238fb4 LI |
718 | |
719 | err = 0; | |
720 | fid = NULL; | |
721 | v9ses = v9fs_inode2v9ses(dir); | |
722 | perm = unixmode2p9mode(v9ses, mode); | |
dd7dd556 | 723 | if (nd) |
8a5e929d | 724 | flags = nd->intent.open.flags; |
bd238fb4 LI |
725 | else |
726 | flags = O_RDWR; | |
727 | ||
728 | fid = v9fs_create(v9ses, dir, dentry, NULL, perm, | |
dd6102fb SK |
729 | v9fs_uflags2omode(flags, |
730 | v9fs_proto_dotu(v9ses))); | |
bd238fb4 LI |
731 | if (IS_ERR(fid)) { |
732 | err = PTR_ERR(fid); | |
733 | fid = NULL; | |
734 | goto error; | |
735 | } | |
736 | ||
d28c61f0 | 737 | v9fs_invalidate_inode_attr(dir); |
bd238fb4 | 738 | /* if we are opening a file, assign the open fid to the file */ |
dd7dd556 | 739 | if (nd) { |
6b39f6d2 | 740 | v9inode = V9FS_I(dentry->d_inode); |
5a7e0a8c | 741 | mutex_lock(&v9inode->v_mutex); |
7add697a AK |
742 | if (v9ses->cache && !v9inode->writeback_fid && |
743 | ((flags & O_ACCMODE) != O_RDONLY)) { | |
3cf387d7 | 744 | /* |
6b39f6d2 | 745 | * clone a fid and add it to writeback_fid |
3cf387d7 AK |
746 | * we do it during open time instead of |
747 | * page dirty time via write_begin/page_mkwrite | |
748 | * because we want write after unlink usecase | |
749 | * to work. | |
750 | */ | |
751 | inode_fid = v9fs_writeback_fid(dentry); | |
752 | if (IS_ERR(inode_fid)) { | |
753 | err = PTR_ERR(inode_fid); | |
5a7e0a8c | 754 | mutex_unlock(&v9inode->v_mutex); |
3cf387d7 AK |
755 | goto error; |
756 | } | |
6b39f6d2 | 757 | v9inode->writeback_fid = (void *) inode_fid; |
3cf387d7 | 758 | } |
5a7e0a8c | 759 | mutex_unlock(&v9inode->v_mutex); |
877cb3d4 | 760 | filp = lookup_instantiate_filp(nd, dentry, generic_file_open); |
6a3124a3 | 761 | if (IS_ERR(filp)) { |
bd238fb4 LI |
762 | err = PTR_ERR(filp); |
763 | goto error; | |
6a3124a3 LI |
764 | } |
765 | ||
bd238fb4 | 766 | filp->private_data = fid; |
46848de0 AK |
767 | #ifdef CONFIG_9P_FSCACHE |
768 | if (v9ses->cache) | |
769 | v9fs_cache_inode_set_cookie(dentry->d_inode, filp); | |
770 | #endif | |
bd238fb4 LI |
771 | } else |
772 | p9_client_clunk(fid); | |
6a3124a3 LI |
773 | |
774 | return 0; | |
775 | ||
776 | error: | |
bd238fb4 LI |
777 | if (fid) |
778 | p9_client_clunk(fid); | |
6a3124a3 | 779 | |
6a3124a3 | 780 | return err; |
2bad8471 EVH |
781 | } |
782 | ||
783 | /** | |
784 | * v9fs_vfs_mkdir - VFS mkdir hook to create a directory | |
ee443996 | 785 | * @dir: inode that is being unlinked |
2bad8471 EVH |
786 | * @dentry: dentry that is being unlinked |
787 | * @mode: mode for new directory | |
788 | * | |
789 | */ | |
790 | ||
6a3124a3 | 791 | static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) |
2bad8471 | 792 | { |
6a3124a3 | 793 | int err; |
bd238fb4 | 794 | u32 perm; |
bd238fb4 | 795 | struct p9_fid *fid; |
d28c61f0 | 796 | struct v9fs_session_info *v9ses; |
6a3124a3 | 797 | |
bd238fb4 LI |
798 | P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name); |
799 | err = 0; | |
6a3124a3 | 800 | v9ses = v9fs_inode2v9ses(dir); |
6a3124a3 | 801 | perm = unixmode2p9mode(v9ses, mode | S_IFDIR); |
bd238fb4 LI |
802 | fid = v9fs_create(v9ses, dir, dentry, NULL, perm, P9_OREAD); |
803 | if (IS_ERR(fid)) { | |
804 | err = PTR_ERR(fid); | |
805 | fid = NULL; | |
d28c61f0 | 806 | } else { |
b271ec47 | 807 | inc_nlink(dir); |
d28c61f0 AK |
808 | v9fs_invalidate_inode_attr(dir); |
809 | } | |
6a3124a3 | 810 | |
bd238fb4 LI |
811 | if (fid) |
812 | p9_client_clunk(fid); | |
6a3124a3 | 813 | |
6a3124a3 | 814 | return err; |
2bad8471 EVH |
815 | } |
816 | ||
817 | /** | |
818 | * v9fs_vfs_lookup - VFS lookup hook to "walk" to a new inode | |
819 | * @dir: inode that is being walked from | |
820 | * @dentry: dentry that is being walked to? | |
821 | * @nameidata: path data | |
822 | * | |
823 | */ | |
824 | ||
53c06f4e | 825 | struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, |
2bad8471 EVH |
826 | struct nameidata *nameidata) |
827 | { | |
828 | struct super_block *sb; | |
829 | struct v9fs_session_info *v9ses; | |
bd238fb4 | 830 | struct p9_fid *dfid, *fid; |
2bad8471 | 831 | struct inode *inode; |
bd238fb4 | 832 | char *name; |
2bad8471 EVH |
833 | int result = 0; |
834 | ||
bd238fb4 | 835 | P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n", |
731805b4 | 836 | dir, dentry->d_name.name, dentry, nameidata); |
2bad8471 | 837 | |
11e9b49b SK |
838 | if (dentry->d_name.len > NAME_MAX) |
839 | return ERR_PTR(-ENAMETOOLONG); | |
840 | ||
2bad8471 EVH |
841 | sb = dir->i_sb; |
842 | v9ses = v9fs_inode2v9ses(dir); | |
a534c8d1 | 843 | /* We can walk d_parent because we hold the dir->i_mutex */ |
bd238fb4 LI |
844 | dfid = v9fs_fid_lookup(dentry->d_parent); |
845 | if (IS_ERR(dfid)) | |
e231c2ee | 846 | return ERR_CAST(dfid); |
bd238fb4 LI |
847 | |
848 | name = (char *) dentry->d_name.name; | |
849 | fid = p9_client_walk(dfid, 1, &name, 1); | |
850 | if (IS_ERR(fid)) { | |
851 | result = PTR_ERR(fid); | |
2bad8471 | 852 | if (result == -ENOENT) { |
85e0df24 AK |
853 | inode = NULL; |
854 | goto inst_out; | |
2bad8471 | 855 | } |
2bad8471 | 856 | |
bd238fb4 | 857 | return ERR_PTR(result); |
2bad8471 EVH |
858 | } |
859 | ||
a78ce05d | 860 | inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb); |
bd238fb4 LI |
861 | if (IS_ERR(inode)) { |
862 | result = PTR_ERR(inode); | |
863 | inode = NULL; | |
864 | goto error; | |
2bad8471 EVH |
865 | } |
866 | ||
bd238fb4 | 867 | result = v9fs_fid_add(dentry, fid); |
6a3124a3 | 868 | if (result < 0) |
9856af8b | 869 | goto error_iput; |
6a3124a3 | 870 | |
85e0df24 | 871 | inst_out: |
2bad8471 | 872 | d_add(dentry, inode); |
2bad8471 EVH |
873 | return NULL; |
874 | ||
9856af8b AK |
875 | error_iput: |
876 | iput(inode); | |
bd238fb4 | 877 | error: |
62aa528e | 878 | p9_client_clunk(fid); |
da977b2c | 879 | |
2bad8471 EVH |
880 | return ERR_PTR(result); |
881 | } | |
882 | ||
883 | /** | |
884 | * v9fs_vfs_unlink - VFS unlink hook to delete an inode | |
885 | * @i: inode that is being unlinked | |
73c592b9 | 886 | * @d: dentry that is being unlinked |
2bad8471 EVH |
887 | * |
888 | */ | |
889 | ||
53c06f4e | 890 | int v9fs_vfs_unlink(struct inode *i, struct dentry *d) |
2bad8471 EVH |
891 | { |
892 | return v9fs_remove(i, d, 0); | |
893 | } | |
894 | ||
895 | /** | |
896 | * v9fs_vfs_rmdir - VFS unlink hook to delete a directory | |
897 | * @i: inode that is being unlinked | |
73c592b9 | 898 | * @d: dentry that is being unlinked |
2bad8471 EVH |
899 | * |
900 | */ | |
901 | ||
53c06f4e | 902 | int v9fs_vfs_rmdir(struct inode *i, struct dentry *d) |
2bad8471 | 903 | { |
48e370ff | 904 | return v9fs_remove(i, d, AT_REMOVEDIR); |
2bad8471 EVH |
905 | } |
906 | ||
907 | /** | |
908 | * v9fs_vfs_rename - VFS hook to rename an inode | |
909 | * @old_dir: old dir inode | |
910 | * @old_dentry: old dentry | |
911 | * @new_dir: new dir inode | |
912 | * @new_dentry: new dentry | |
913 | * | |
914 | */ | |
915 | ||
53c06f4e | 916 | int |
2bad8471 EVH |
917 | v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, |
918 | struct inode *new_dir, struct dentry *new_dentry) | |
919 | { | |
d28c61f0 | 920 | int retval; |
bd238fb4 | 921 | struct inode *old_inode; |
b271ec47 | 922 | struct inode *new_inode; |
bd238fb4 LI |
923 | struct v9fs_session_info *v9ses; |
924 | struct p9_fid *oldfid; | |
925 | struct p9_fid *olddirfid; | |
926 | struct p9_fid *newdirfid; | |
927 | struct p9_wstat wstat; | |
2bad8471 | 928 | |
bd238fb4 LI |
929 | P9_DPRINTK(P9_DEBUG_VFS, "\n"); |
930 | retval = 0; | |
931 | old_inode = old_dentry->d_inode; | |
b271ec47 | 932 | new_inode = new_dentry->d_inode; |
bd238fb4 LI |
933 | v9ses = v9fs_inode2v9ses(old_inode); |
934 | oldfid = v9fs_fid_lookup(old_dentry); | |
ba17674f | 935 | if (IS_ERR(oldfid)) |
da977b2c EVH |
936 | return PTR_ERR(oldfid); |
937 | ||
938 | olddirfid = v9fs_fid_clone(old_dentry->d_parent); | |
ba17674f | 939 | if (IS_ERR(olddirfid)) { |
da977b2c | 940 | retval = PTR_ERR(olddirfid); |
bd238fb4 | 941 | goto done; |
da977b2c EVH |
942 | } |
943 | ||
944 | newdirfid = v9fs_fid_clone(new_dentry->d_parent); | |
ba17674f | 945 | if (IS_ERR(newdirfid)) { |
da977b2c | 946 | retval = PTR_ERR(newdirfid); |
bd238fb4 | 947 | goto clunk_olddir; |
2bad8471 EVH |
948 | } |
949 | ||
a534c8d1 | 950 | down_write(&v9ses->rename_sem); |
4681dbda | 951 | if (v9fs_proto_dotl(v9ses)) { |
9e8fb38e AK |
952 | retval = p9_client_renameat(olddirfid, old_dentry->d_name.name, |
953 | newdirfid, new_dentry->d_name.name); | |
954 | if (retval == -EOPNOTSUPP) | |
955 | retval = p9_client_rename(oldfid, newdirfid, | |
956 | new_dentry->d_name.name); | |
957 | if (retval != -EOPNOTSUPP) | |
4681dbda SK |
958 | goto clunk_newdir; |
959 | } | |
a534c8d1 AK |
960 | if (old_dentry->d_parent != new_dentry->d_parent) { |
961 | /* | |
962 | * 9P .u can only handle file rename in the same directory | |
963 | */ | |
4681dbda | 964 | |
bd238fb4 LI |
965 | P9_DPRINTK(P9_DEBUG_ERROR, |
966 | "old dir and new dir are different\n"); | |
621997cd | 967 | retval = -EXDEV; |
bd238fb4 | 968 | goto clunk_newdir; |
2bad8471 | 969 | } |
531b1094 | 970 | v9fs_blank_wstat(&wstat); |
ba17674f | 971 | wstat.muid = v9ses->uname; |
531b1094 | 972 | wstat.name = (char *) new_dentry->d_name.name; |
bd238fb4 | 973 | retval = p9_client_wstat(oldfid, &wstat); |
2bad8471 | 974 | |
bd238fb4 | 975 | clunk_newdir: |
b271ec47 AK |
976 | if (!retval) { |
977 | if (new_inode) { | |
978 | if (S_ISDIR(new_inode->i_mode)) | |
979 | clear_nlink(new_inode); | |
980 | else | |
981 | drop_nlink(new_inode); | |
982 | } | |
983 | if (S_ISDIR(old_inode->i_mode)) { | |
984 | if (!new_inode) | |
985 | inc_nlink(new_dir); | |
986 | drop_nlink(old_dir); | |
987 | } | |
3bc86de3 | 988 | v9fs_invalidate_inode_attr(old_inode); |
d28c61f0 AK |
989 | v9fs_invalidate_inode_attr(old_dir); |
990 | v9fs_invalidate_inode_attr(new_dir); | |
3bc86de3 | 991 | |
a534c8d1 AK |
992 | /* successful rename */ |
993 | d_move(old_dentry, new_dentry); | |
b271ec47 | 994 | } |
a534c8d1 | 995 | up_write(&v9ses->rename_sem); |
22150c4f | 996 | p9_client_clunk(newdirfid); |
2bad8471 | 997 | |
bd238fb4 | 998 | clunk_olddir: |
22150c4f | 999 | p9_client_clunk(olddirfid); |
da977b2c | 1000 | |
bd238fb4 | 1001 | done: |
2bad8471 EVH |
1002 | return retval; |
1003 | } | |
1004 | ||
1005 | /** | |
943ffb58 | 1006 | * v9fs_vfs_getattr - retrieve file metadata |
ee443996 EVH |
1007 | * @mnt: mount information |
1008 | * @dentry: file to get attributes on | |
1009 | * @stat: metadata structure to populate | |
2bad8471 EVH |
1010 | * |
1011 | */ | |
1012 | ||
1013 | static int | |
1014 | v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, | |
1015 | struct kstat *stat) | |
1016 | { | |
bd238fb4 LI |
1017 | int err; |
1018 | struct v9fs_session_info *v9ses; | |
1019 | struct p9_fid *fid; | |
51a87c55 | 1020 | struct p9_wstat *st; |
bd238fb4 LI |
1021 | |
1022 | P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry); | |
1023 | err = -EPERM; | |
42869c8a | 1024 | v9ses = v9fs_dentry2v9ses(dentry); |
a1211908 AK |
1025 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { |
1026 | generic_fillattr(dentry->d_inode, stat); | |
1027 | return 0; | |
1028 | } | |
bd238fb4 LI |
1029 | fid = v9fs_fid_lookup(dentry); |
1030 | if (IS_ERR(fid)) | |
da977b2c | 1031 | return PTR_ERR(fid); |
2bad8471 | 1032 | |
bd238fb4 LI |
1033 | st = p9_client_stat(fid); |
1034 | if (IS_ERR(st)) | |
1035 | return PTR_ERR(st); | |
2bad8471 | 1036 | |
bd238fb4 | 1037 | v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb); |
45089142 | 1038 | generic_fillattr(dentry->d_inode, stat); |
2bad8471 | 1039 | |
62b2be59 | 1040 | p9stat_free(st); |
bd238fb4 LI |
1041 | kfree(st); |
1042 | return 0; | |
2bad8471 EVH |
1043 | } |
1044 | ||
1045 | /** | |
1046 | * v9fs_vfs_setattr - set file metadata | |
1047 | * @dentry: file whose metadata to set | |
1048 | * @iattr: metadata assignment structure | |
1049 | * | |
1050 | */ | |
1051 | ||
1052 | static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr) | |
1053 | { | |
bd238fb4 LI |
1054 | int retval; |
1055 | struct v9fs_session_info *v9ses; | |
1056 | struct p9_fid *fid; | |
1057 | struct p9_wstat wstat; | |
2bad8471 | 1058 | |
bd238fb4 | 1059 | P9_DPRINTK(P9_DEBUG_VFS, "\n"); |
059c138b AK |
1060 | retval = inode_change_ok(dentry->d_inode, iattr); |
1061 | if (retval) | |
1062 | return retval; | |
1063 | ||
bd238fb4 | 1064 | retval = -EPERM; |
42869c8a | 1065 | v9ses = v9fs_dentry2v9ses(dentry); |
bd238fb4 | 1066 | fid = v9fs_fid_lookup(dentry); |
da977b2c EVH |
1067 | if(IS_ERR(fid)) |
1068 | return PTR_ERR(fid); | |
2bad8471 | 1069 | |
531b1094 | 1070 | v9fs_blank_wstat(&wstat); |
2bad8471 | 1071 | if (iattr->ia_valid & ATTR_MODE) |
531b1094 | 1072 | wstat.mode = unixmode2p9mode(v9ses, iattr->ia_mode); |
2bad8471 EVH |
1073 | |
1074 | if (iattr->ia_valid & ATTR_MTIME) | |
531b1094 | 1075 | wstat.mtime = iattr->ia_mtime.tv_sec; |
2bad8471 EVH |
1076 | |
1077 | if (iattr->ia_valid & ATTR_ATIME) | |
531b1094 | 1078 | wstat.atime = iattr->ia_atime.tv_sec; |
2bad8471 EVH |
1079 | |
1080 | if (iattr->ia_valid & ATTR_SIZE) | |
531b1094 | 1081 | wstat.length = iattr->ia_size; |
2bad8471 | 1082 | |
dd6102fb | 1083 | if (v9fs_proto_dotu(v9ses)) { |
531b1094 LI |
1084 | if (iattr->ia_valid & ATTR_UID) |
1085 | wstat.n_uid = iattr->ia_uid; | |
2bad8471 | 1086 | |
531b1094 LI |
1087 | if (iattr->ia_valid & ATTR_GID) |
1088 | wstat.n_gid = iattr->ia_gid; | |
2bad8471 | 1089 | } |
059c138b | 1090 | |
3dc5436a AK |
1091 | /* Write all dirty data */ |
1092 | if (S_ISREG(dentry->d_inode->i_mode)) | |
1093 | filemap_write_and_wait(dentry->d_inode->i_mapping); | |
1094 | ||
f10fc50f AK |
1095 | retval = p9_client_wstat(fid, &wstat); |
1096 | if (retval < 0) | |
1097 | return retval; | |
059c138b AK |
1098 | |
1099 | if ((iattr->ia_valid & ATTR_SIZE) && | |
1100 | iattr->ia_size != i_size_read(dentry->d_inode)) | |
1101 | truncate_setsize(dentry->d_inode, iattr->ia_size); | |
1102 | ||
f10fc50f | 1103 | v9fs_invalidate_inode_attr(dentry->d_inode); |
2bad8471 | 1104 | |
1025774c CH |
1105 | setattr_copy(dentry->d_inode, iattr); |
1106 | mark_inode_dirty(dentry->d_inode); | |
1107 | return 0; | |
2bad8471 EVH |
1108 | } |
1109 | ||
1110 | /** | |
531b1094 LI |
1111 | * v9fs_stat2inode - populate an inode structure with mistat info |
1112 | * @stat: Plan 9 metadata (mistat) structure | |
2bad8471 EVH |
1113 | * @inode: inode to populate |
1114 | * @sb: superblock of filesystem | |
1115 | * | |
1116 | */ | |
1117 | ||
1118 | void | |
51a87c55 | 1119 | v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, |
531b1094 | 1120 | struct super_block *sb) |
2bad8471 | 1121 | { |
45089142 | 1122 | mode_t mode; |
531b1094 | 1123 | char ext[32]; |
5717144a AK |
1124 | char tag_name[14]; |
1125 | unsigned int i_nlink; | |
2bad8471 | 1126 | struct v9fs_session_info *v9ses = sb->s_fs_info; |
b3cbea03 | 1127 | struct v9fs_inode *v9inode = V9FS_I(inode); |
2bad8471 EVH |
1128 | |
1129 | inode->i_nlink = 1; | |
1130 | ||
531b1094 LI |
1131 | inode->i_atime.tv_sec = stat->atime; |
1132 | inode->i_mtime.tv_sec = stat->mtime; | |
1133 | inode->i_ctime.tv_sec = stat->mtime; | |
2bad8471 | 1134 | |
bd32b82d LI |
1135 | inode->i_uid = v9ses->dfltuid; |
1136 | inode->i_gid = v9ses->dfltgid; | |
2bad8471 | 1137 | |
dd6102fb | 1138 | if (v9fs_proto_dotu(v9ses)) { |
531b1094 LI |
1139 | inode->i_uid = stat->n_uid; |
1140 | inode->i_gid = stat->n_gid; | |
2bad8471 | 1141 | } |
5717144a AK |
1142 | if ((S_ISREG(inode->i_mode)) || (S_ISDIR(inode->i_mode))) { |
1143 | if (v9fs_proto_dotu(v9ses) && (stat->extension[0] != '\0')) { | |
1144 | /* | |
1145 | * Hadlink support got added later to | |
1146 | * to the .u extension. So there can be | |
1147 | * server out there that doesn't support | |
1148 | * this even with .u extension. So check | |
1149 | * for non NULL stat->extension | |
1150 | */ | |
1151 | strncpy(ext, stat->extension, sizeof(ext)); | |
1152 | /* HARDLINKCOUNT %u */ | |
1153 | sscanf(ext, "%13s %u", tag_name, &i_nlink); | |
1154 | if (!strncmp(tag_name, "HARDLINKCOUNT", 13)) | |
1155 | inode->i_nlink = i_nlink; | |
1156 | } | |
1157 | } | |
45089142 AK |
1158 | mode = stat->mode & S_IALLUGO; |
1159 | mode |= inode->i_mode & ~S_IALLUGO; | |
1160 | inode->i_mode = mode; | |
7549ae3e | 1161 | i_size_write(inode, stat->length); |
2bad8471 | 1162 | |
bd238fb4 | 1163 | /* not real number of blocks, but 512 byte ones ... */ |
7549ae3e | 1164 | inode->i_blocks = (i_size_read(inode) + 512 - 1) >> 9; |
b3cbea03 | 1165 | v9inode->cache_validity &= ~V9FS_INO_INVALID_ATTR; |
2bad8471 EVH |
1166 | } |
1167 | ||
1168 | /** | |
1169 | * v9fs_qid2ino - convert qid into inode number | |
1170 | * @qid: qid to hash | |
1171 | * | |
1172 | * BUG: potential for inode number collisions? | |
1173 | */ | |
1174 | ||
bd238fb4 | 1175 | ino_t v9fs_qid2ino(struct p9_qid *qid) |
2bad8471 EVH |
1176 | { |
1177 | u64 path = qid->path + 2; | |
1178 | ino_t i = 0; | |
1179 | ||
1180 | if (sizeof(ino_t) == sizeof(path)) | |
1181 | memcpy(&i, &path, sizeof(ino_t)); | |
1182 | else | |
1183 | i = (ino_t) (path ^ (path >> 32)); | |
1184 | ||
1185 | return i; | |
1186 | } | |
1187 | ||
2bad8471 EVH |
1188 | /** |
1189 | * v9fs_readlink - read a symlink's location (internal version) | |
1190 | * @dentry: dentry for symlink | |
73c592b9 | 1191 | * @buffer: buffer to load symlink location into |
2bad8471 EVH |
1192 | * @buflen: length of buffer |
1193 | * | |
1194 | */ | |
1195 | ||
1196 | static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen) | |
1197 | { | |
bd238fb4 | 1198 | int retval; |
2bad8471 | 1199 | |
bd238fb4 LI |
1200 | struct v9fs_session_info *v9ses; |
1201 | struct p9_fid *fid; | |
51a87c55 | 1202 | struct p9_wstat *st; |
2bad8471 | 1203 | |
bd238fb4 LI |
1204 | P9_DPRINTK(P9_DEBUG_VFS, " %s\n", dentry->d_name.name); |
1205 | retval = -EPERM; | |
42869c8a | 1206 | v9ses = v9fs_dentry2v9ses(dentry); |
bd238fb4 | 1207 | fid = v9fs_fid_lookup(dentry); |
ba17674f | 1208 | if (IS_ERR(fid)) |
da977b2c | 1209 | return PTR_ERR(fid); |
2bad8471 | 1210 | |
329176cc | 1211 | if (!v9fs_proto_dotu(v9ses)) |
bd238fb4 | 1212 | return -EBADF; |
2bad8471 | 1213 | |
bd238fb4 LI |
1214 | st = p9_client_stat(fid); |
1215 | if (IS_ERR(st)) | |
1216 | return PTR_ERR(st); | |
2bad8471 | 1217 | |
bd238fb4 | 1218 | if (!(st->mode & P9_DMSYMLINK)) { |
2bad8471 | 1219 | retval = -EINVAL; |
bd238fb4 | 1220 | goto done; |
2bad8471 EVH |
1221 | } |
1222 | ||
1223 | /* copy extension buffer into buffer */ | |
51a87c55 | 1224 | strncpy(buffer, st->extension, buflen); |
2bad8471 | 1225 | |
bd238fb4 | 1226 | P9_DPRINTK(P9_DEBUG_VFS, |
51a87c55 | 1227 | "%s -> %s (%s)\n", dentry->d_name.name, st->extension, buffer); |
2bad8471 | 1228 | |
2511cd0b | 1229 | retval = strnlen(buffer, buflen); |
bd238fb4 | 1230 | done: |
62b2be59 | 1231 | p9stat_free(st); |
bd238fb4 | 1232 | kfree(st); |
2bad8471 EVH |
1233 | return retval; |
1234 | } | |
1235 | ||
2bad8471 EVH |
1236 | /** |
1237 | * v9fs_vfs_follow_link - follow a symlink path | |
1238 | * @dentry: dentry for symlink | |
1239 | * @nd: nameidata | |
1240 | * | |
1241 | */ | |
1242 | ||
1243 | static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd) | |
1244 | { | |
1245 | int len = 0; | |
1246 | char *link = __getname(); | |
1247 | ||
bd238fb4 | 1248 | P9_DPRINTK(P9_DEBUG_VFS, "%s n", dentry->d_name.name); |
2bad8471 EVH |
1249 | |
1250 | if (!link) | |
1251 | link = ERR_PTR(-ENOMEM); | |
1252 | else { | |
16cce6d2 | 1253 | len = v9fs_readlink(dentry, link, PATH_MAX); |
2bad8471 EVH |
1254 | |
1255 | if (len < 0) { | |
ce44eeb6 | 1256 | __putname(link); |
2bad8471 EVH |
1257 | link = ERR_PTR(len); |
1258 | } else | |
2511cd0b | 1259 | link[min(len, PATH_MAX-1)] = 0; |
2bad8471 EVH |
1260 | } |
1261 | nd_set_link(nd, link); | |
1262 | ||
1263 | return NULL; | |
1264 | } | |
1265 | ||
1266 | /** | |
1267 | * v9fs_vfs_put_link - release a symlink path | |
1268 | * @dentry: dentry for symlink | |
1269 | * @nd: nameidata | |
ee443996 | 1270 | * @p: unused |
2bad8471 EVH |
1271 | * |
1272 | */ | |
1273 | ||
53c06f4e | 1274 | void |
ee443996 | 1275 | v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) |
2bad8471 EVH |
1276 | { |
1277 | char *s = nd_get_link(nd); | |
1278 | ||
6ff23207 DG |
1279 | P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name, |
1280 | IS_ERR(s) ? "<error>" : s); | |
2bad8471 | 1281 | if (!IS_ERR(s)) |
ce44eeb6 | 1282 | __putname(s); |
2bad8471 EVH |
1283 | } |
1284 | ||
ee443996 EVH |
1285 | /** |
1286 | * v9fs_vfs_mkspecial - create a special file | |
1287 | * @dir: inode to create special file in | |
1288 | * @dentry: dentry to create | |
1289 | * @mode: mode to create special file | |
1290 | * @extension: 9p2000.u format extension string representing special file | |
1291 | * | |
1292 | */ | |
1293 | ||
531b1094 LI |
1294 | static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry, |
1295 | int mode, const char *extension) | |
2bad8471 | 1296 | { |
bd238fb4 | 1297 | u32 perm; |
bd238fb4 | 1298 | struct p9_fid *fid; |
d28c61f0 | 1299 | struct v9fs_session_info *v9ses; |
2bad8471 | 1300 | |
6a3124a3 | 1301 | v9ses = v9fs_inode2v9ses(dir); |
dd6102fb | 1302 | if (!v9fs_proto_dotu(v9ses)) { |
bd238fb4 | 1303 | P9_DPRINTK(P9_DEBUG_ERROR, "not extended\n"); |
6a3124a3 | 1304 | return -EPERM; |
2bad8471 EVH |
1305 | } |
1306 | ||
da977b2c | 1307 | perm = unixmode2p9mode(v9ses, mode); |
bd238fb4 LI |
1308 | fid = v9fs_create(v9ses, dir, dentry, (char *) extension, perm, |
1309 | P9_OREAD); | |
1310 | if (IS_ERR(fid)) | |
1311 | return PTR_ERR(fid); | |
da977b2c | 1312 | |
d28c61f0 | 1313 | v9fs_invalidate_inode_attr(dir); |
bd238fb4 | 1314 | p9_client_clunk(fid); |
6a3124a3 | 1315 | return 0; |
531b1094 LI |
1316 | } |
1317 | ||
1318 | /** | |
1319 | * v9fs_vfs_symlink - helper function to create symlinks | |
1320 | * @dir: directory inode containing symlink | |
1321 | * @dentry: dentry for symlink | |
1322 | * @symname: symlink data | |
1323 | * | |
ee443996 | 1324 | * See Also: 9P2000.u RFC for more information |
531b1094 LI |
1325 | * |
1326 | */ | |
1327 | ||
1328 | static int | |
1329 | v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) | |
1330 | { | |
bd238fb4 LI |
1331 | P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino, |
1332 | dentry->d_name.name, symname); | |
531b1094 LI |
1333 | |
1334 | return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname); | |
1335 | } | |
1336 | ||
1337 | /** | |
1338 | * v9fs_vfs_link - create a hardlink | |
1339 | * @old_dentry: dentry for file to link to | |
1340 | * @dir: inode destination for new link | |
1341 | * @dentry: dentry for link | |
1342 | * | |
1343 | */ | |
1344 | ||
531b1094 LI |
1345 | static int |
1346 | v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, | |
1347 | struct dentry *dentry) | |
1348 | { | |
1349 | int retval; | |
531b1094 | 1350 | char *name; |
d28c61f0 | 1351 | struct p9_fid *oldfid; |
531b1094 | 1352 | |
bd238fb4 LI |
1353 | P9_DPRINTK(P9_DEBUG_VFS, |
1354 | " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name, | |
531b1094 LI |
1355 | old_dentry->d_name.name); |
1356 | ||
da977b2c | 1357 | oldfid = v9fs_fid_clone(old_dentry); |
ba17674f | 1358 | if (IS_ERR(oldfid)) |
da977b2c | 1359 | return PTR_ERR(oldfid); |
531b1094 LI |
1360 | |
1361 | name = __getname(); | |
da977b2c EVH |
1362 | if (unlikely(!name)) { |
1363 | retval = -ENOMEM; | |
1364 | goto clunk_fid; | |
1365 | } | |
0710d36a | 1366 | |
16cce6d2 | 1367 | sprintf(name, "%d\n", oldfid->fid); |
bd238fb4 | 1368 | retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name); |
531b1094 | 1369 | __putname(name); |
c06c066a AK |
1370 | if (!retval) { |
1371 | v9fs_refresh_inode(oldfid, old_dentry->d_inode); | |
d28c61f0 | 1372 | v9fs_invalidate_inode_attr(dir); |
c06c066a | 1373 | } |
da977b2c | 1374 | clunk_fid: |
bd238fb4 | 1375 | p9_client_clunk(oldfid); |
2bad8471 EVH |
1376 | return retval; |
1377 | } | |
1378 | ||
1379 | /** | |
1380 | * v9fs_vfs_mknod - create a special file | |
1381 | * @dir: inode destination for new link | |
1382 | * @dentry: dentry for file | |
1383 | * @mode: mode for creation | |
ee443996 | 1384 | * @rdev: device associated with special file |
2bad8471 EVH |
1385 | * |
1386 | */ | |
1387 | ||
1388 | static int | |
1389 | v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) | |
1390 | { | |
531b1094 LI |
1391 | int retval; |
1392 | char *name; | |
2bad8471 | 1393 | |
bd238fb4 LI |
1394 | P9_DPRINTK(P9_DEBUG_VFS, |
1395 | " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino, | |
2bad8471 EVH |
1396 | dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev)); |
1397 | ||
531b1094 LI |
1398 | if (!new_valid_dev(rdev)) |
1399 | return -EINVAL; | |
2bad8471 | 1400 | |
531b1094 | 1401 | name = __getname(); |
c0291a05 ET |
1402 | if (!name) |
1403 | return -ENOMEM; | |
2bad8471 EVH |
1404 | /* build extension */ |
1405 | if (S_ISBLK(mode)) | |
531b1094 | 1406 | sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev)); |
2bad8471 | 1407 | else if (S_ISCHR(mode)) |
531b1094 | 1408 | sprintf(name, "c %u %u", MAJOR(rdev), MINOR(rdev)); |
73c592b9 | 1409 | else if (S_ISFIFO(mode)) |
531b1094 | 1410 | *name = 0; |
75cc5c9b VJ |
1411 | else if (S_ISSOCK(mode)) |
1412 | *name = 0; | |
2bad8471 | 1413 | else { |
531b1094 LI |
1414 | __putname(name); |
1415 | return -EINVAL; | |
2bad8471 EVH |
1416 | } |
1417 | ||
531b1094 LI |
1418 | retval = v9fs_vfs_mkspecial(dir, dentry, mode, name); |
1419 | __putname(name); | |
2bad8471 EVH |
1420 | |
1421 | return retval; | |
1422 | } | |
1423 | ||
b3cbea03 AK |
1424 | int v9fs_refresh_inode(struct p9_fid *fid, struct inode *inode) |
1425 | { | |
45089142 AK |
1426 | int umode; |
1427 | dev_t rdev; | |
b3cbea03 AK |
1428 | loff_t i_size; |
1429 | struct p9_wstat *st; | |
1430 | struct v9fs_session_info *v9ses; | |
1431 | ||
1432 | v9ses = v9fs_inode2v9ses(inode); | |
1433 | st = p9_client_stat(fid); | |
1434 | if (IS_ERR(st)) | |
1435 | return PTR_ERR(st); | |
45089142 AK |
1436 | /* |
1437 | * Don't update inode if the file type is different | |
1438 | */ | |
1439 | umode = p9mode2unixmode(v9ses, st, &rdev); | |
1440 | if ((inode->i_mode & S_IFMT) != (umode & S_IFMT)) | |
1441 | goto out; | |
b3cbea03 AK |
1442 | |
1443 | spin_lock(&inode->i_lock); | |
1444 | /* | |
1445 | * We don't want to refresh inode->i_size, | |
1446 | * because we may have cached data | |
1447 | */ | |
1448 | i_size = inode->i_size; | |
1449 | v9fs_stat2inode(st, inode, inode->i_sb); | |
1450 | if (v9ses->cache) | |
1451 | inode->i_size = i_size; | |
1452 | spin_unlock(&inode->i_lock); | |
45089142 | 1453 | out: |
b3cbea03 AK |
1454 | p9stat_free(st); |
1455 | kfree(st); | |
1456 | return 0; | |
1457 | } | |
1458 | ||
9b6533c9 SK |
1459 | static const struct inode_operations v9fs_dir_inode_operations_dotu = { |
1460 | .create = v9fs_vfs_create, | |
1461 | .lookup = v9fs_vfs_lookup, | |
1462 | .symlink = v9fs_vfs_symlink, | |
50cc42ff | 1463 | .link = v9fs_vfs_link, |
9b6533c9 SK |
1464 | .unlink = v9fs_vfs_unlink, |
1465 | .mkdir = v9fs_vfs_mkdir, | |
1466 | .rmdir = v9fs_vfs_rmdir, | |
1d76e313 | 1467 | .mknod = v9fs_vfs_mknod, |
9b6533c9 SK |
1468 | .rename = v9fs_vfs_rename, |
1469 | .getattr = v9fs_vfs_getattr, | |
1470 | .setattr = v9fs_vfs_setattr, | |
1471 | }; | |
1472 | ||
754661f1 | 1473 | static const struct inode_operations v9fs_dir_inode_operations = { |
b501611a EVH |
1474 | .create = v9fs_vfs_create, |
1475 | .lookup = v9fs_vfs_lookup, | |
1476 | .unlink = v9fs_vfs_unlink, | |
1477 | .mkdir = v9fs_vfs_mkdir, | |
1478 | .rmdir = v9fs_vfs_rmdir, | |
1479 | .mknod = v9fs_vfs_mknod, | |
1480 | .rename = v9fs_vfs_rename, | |
1481 | .getattr = v9fs_vfs_getattr, | |
1482 | .setattr = v9fs_vfs_setattr, | |
1483 | }; | |
1484 | ||
754661f1 | 1485 | static const struct inode_operations v9fs_file_inode_operations = { |
2bad8471 EVH |
1486 | .getattr = v9fs_vfs_getattr, |
1487 | .setattr = v9fs_vfs_setattr, | |
1488 | }; | |
1489 | ||
754661f1 | 1490 | static const struct inode_operations v9fs_symlink_inode_operations = { |
204f2f0e | 1491 | .readlink = generic_readlink, |
2bad8471 EVH |
1492 | .follow_link = v9fs_vfs_follow_link, |
1493 | .put_link = v9fs_vfs_put_link, | |
1494 | .getattr = v9fs_vfs_getattr, | |
1495 | .setattr = v9fs_vfs_setattr, | |
1496 | }; | |
9b6533c9 | 1497 |