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Commit | Line | Data |
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53c06f4e AK |
1 | /* |
2 | * linux/fs/9p/vfs_inode_dotl.c | |
3 | * | |
4 | * This file contains vfs inode ops for the 9P2000.L protocol. | |
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 | |
10 | * it under the terms of the GNU General Public License version 2 | |
11 | * as published by the Free Software Foundation. | |
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> | |
33 | #include <linux/inet.h> | |
34 | #include <linux/namei.h> | |
35 | #include <linux/idr.h> | |
36 | #include <linux/sched.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/xattr.h> | |
39 | #include <linux/posix_acl.h> | |
40 | #include <net/9p/9p.h> | |
41 | #include <net/9p/client.h> | |
42 | ||
43 | #include "v9fs.h" | |
44 | #include "v9fs_vfs.h" | |
45 | #include "fid.h" | |
46 | #include "cache.h" | |
47 | #include "xattr.h" | |
48 | #include "acl.h" | |
49 | ||
50 | static int | |
1a67aafb | 51 | v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode, |
53c06f4e AK |
52 | dev_t rdev); |
53 | ||
54 | /** | |
55 | * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a | |
56 | * new file system object. This checks the S_ISGID to determine the owning | |
57 | * group of the new file system object. | |
58 | */ | |
59 | ||
d4ef4e35 | 60 | static kgid_t v9fs_get_fsgid_for_create(struct inode *dir_inode) |
53c06f4e AK |
61 | { |
62 | BUG_ON(dir_inode == NULL); | |
63 | ||
64 | if (dir_inode->i_mode & S_ISGID) { | |
65 | /* set_gid bit is set.*/ | |
66 | return dir_inode->i_gid; | |
67 | } | |
68 | return current_fsgid(); | |
69 | } | |
70 | ||
fd2421f5 AK |
71 | static int v9fs_test_inode_dotl(struct inode *inode, void *data) |
72 | { | |
73 | struct v9fs_inode *v9inode = V9FS_I(inode); | |
74 | struct p9_stat_dotl *st = (struct p9_stat_dotl *)data; | |
75 | ||
76 | /* don't match inode of different type */ | |
77 | if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT)) | |
78 | return 0; | |
79 | ||
80 | if (inode->i_generation != st->st_gen) | |
81 | return 0; | |
82 | ||
83 | /* compare qid details */ | |
84 | if (memcmp(&v9inode->qid.version, | |
85 | &st->qid.version, sizeof(v9inode->qid.version))) | |
86 | return 0; | |
87 | ||
88 | if (v9inode->qid.type != st->qid.type) | |
89 | return 0; | |
90 | return 1; | |
91 | } | |
92 | ||
ed80fcfa AK |
93 | /* Always get a new inode */ |
94 | static int v9fs_test_new_inode_dotl(struct inode *inode, void *data) | |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
fd2421f5 AK |
99 | static int v9fs_set_inode_dotl(struct inode *inode, void *data) |
100 | { | |
101 | struct v9fs_inode *v9inode = V9FS_I(inode); | |
102 | struct p9_stat_dotl *st = (struct p9_stat_dotl *)data; | |
103 | ||
104 | memcpy(&v9inode->qid, &st->qid, sizeof(st->qid)); | |
105 | inode->i_generation = st->st_gen; | |
106 | return 0; | |
107 | } | |
108 | ||
5ffc0cb3 AK |
109 | static struct inode *v9fs_qid_iget_dotl(struct super_block *sb, |
110 | struct p9_qid *qid, | |
111 | struct p9_fid *fid, | |
ed80fcfa AK |
112 | struct p9_stat_dotl *st, |
113 | int new) | |
5ffc0cb3 AK |
114 | { |
115 | int retval; | |
116 | unsigned long i_ino; | |
117 | struct inode *inode; | |
118 | struct v9fs_session_info *v9ses = sb->s_fs_info; | |
ed80fcfa AK |
119 | int (*test)(struct inode *, void *); |
120 | ||
121 | if (new) | |
122 | test = v9fs_test_new_inode_dotl; | |
123 | else | |
124 | test = v9fs_test_inode_dotl; | |
5ffc0cb3 AK |
125 | |
126 | i_ino = v9fs_qid2ino(qid); | |
ed80fcfa | 127 | inode = iget5_locked(sb, i_ino, test, v9fs_set_inode_dotl, st); |
5ffc0cb3 AK |
128 | if (!inode) |
129 | return ERR_PTR(-ENOMEM); | |
130 | if (!(inode->i_state & I_NEW)) | |
131 | return inode; | |
132 | /* | |
133 | * initialize the inode with the stat info | |
134 | * FIXME!! we may need support for stale inodes | |
135 | * later. | |
136 | */ | |
fd2421f5 | 137 | inode->i_ino = i_ino; |
45089142 AK |
138 | retval = v9fs_init_inode(v9ses, inode, |
139 | st->st_mode, new_decode_dev(st->st_rdev)); | |
5ffc0cb3 AK |
140 | if (retval) |
141 | goto error; | |
142 | ||
143 | v9fs_stat2inode_dotl(st, inode); | |
144 | #ifdef CONFIG_9P_FSCACHE | |
5ffc0cb3 AK |
145 | v9fs_cache_inode_get_cookie(inode); |
146 | #endif | |
147 | retval = v9fs_get_acl(inode, fid); | |
148 | if (retval) | |
149 | goto error; | |
150 | ||
151 | unlock_new_inode(inode); | |
152 | return inode; | |
153 | error: | |
154 | unlock_new_inode(inode); | |
155 | iput(inode); | |
156 | return ERR_PTR(retval); | |
157 | ||
158 | } | |
159 | ||
53c06f4e | 160 | struct inode * |
a78ce05d | 161 | v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid, |
ed80fcfa | 162 | struct super_block *sb, int new) |
53c06f4e | 163 | { |
53c06f4e | 164 | struct p9_stat_dotl *st; |
5ffc0cb3 | 165 | struct inode *inode = NULL; |
53c06f4e | 166 | |
fd2421f5 | 167 | st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN); |
53c06f4e AK |
168 | if (IS_ERR(st)) |
169 | return ERR_CAST(st); | |
170 | ||
ed80fcfa | 171 | inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st, new); |
53c06f4e | 172 | kfree(st); |
5ffc0cb3 | 173 | return inode; |
53c06f4e AK |
174 | } |
175 | ||
f88657ce AK |
176 | struct dotl_openflag_map { |
177 | int open_flag; | |
178 | int dotl_flag; | |
179 | }; | |
180 | ||
181 | static int v9fs_mapped_dotl_flags(int flags) | |
182 | { | |
183 | int i; | |
184 | int rflags = 0; | |
185 | struct dotl_openflag_map dotl_oflag_map[] = { | |
186 | { O_CREAT, P9_DOTL_CREATE }, | |
187 | { O_EXCL, P9_DOTL_EXCL }, | |
188 | { O_NOCTTY, P9_DOTL_NOCTTY }, | |
f88657ce AK |
189 | { O_APPEND, P9_DOTL_APPEND }, |
190 | { O_NONBLOCK, P9_DOTL_NONBLOCK }, | |
191 | { O_DSYNC, P9_DOTL_DSYNC }, | |
192 | { FASYNC, P9_DOTL_FASYNC }, | |
193 | { O_DIRECT, P9_DOTL_DIRECT }, | |
194 | { O_LARGEFILE, P9_DOTL_LARGEFILE }, | |
195 | { O_DIRECTORY, P9_DOTL_DIRECTORY }, | |
196 | { O_NOFOLLOW, P9_DOTL_NOFOLLOW }, | |
197 | { O_NOATIME, P9_DOTL_NOATIME }, | |
198 | { O_CLOEXEC, P9_DOTL_CLOEXEC }, | |
199 | { O_SYNC, P9_DOTL_SYNC}, | |
200 | }; | |
201 | for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) { | |
202 | if (flags & dotl_oflag_map[i].open_flag) | |
203 | rflags |= dotl_oflag_map[i].dotl_flag; | |
204 | } | |
205 | return rflags; | |
206 | } | |
207 | ||
208 | /** | |
209 | * v9fs_open_to_dotl_flags- convert Linux specific open flags to | |
210 | * plan 9 open flag. | |
211 | * @flags: flags to convert | |
212 | */ | |
213 | int v9fs_open_to_dotl_flags(int flags) | |
214 | { | |
215 | int rflags = 0; | |
216 | ||
217 | /* | |
218 | * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY | |
219 | * and P9_DOTL_NOACCESS | |
220 | */ | |
221 | rflags |= flags & O_ACCMODE; | |
222 | rflags |= v9fs_mapped_dotl_flags(flags); | |
223 | ||
224 | return rflags; | |
225 | } | |
226 | ||
53c06f4e AK |
227 | /** |
228 | * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol. | |
229 | * @dir: directory inode that is being created | |
230 | * @dentry: dentry that is being deleted | |
231 | * @mode: create permissions | |
53c06f4e AK |
232 | * |
233 | */ | |
234 | ||
235 | static int | |
4acdaf27 | 236 | v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode, |
ebfc3b49 | 237 | bool excl) |
e43ae79c MS |
238 | { |
239 | return v9fs_vfs_mknod_dotl(dir, dentry, omode, 0); | |
240 | } | |
241 | ||
d9585277 | 242 | static int |
e43ae79c | 243 | v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry, |
30d90494 | 244 | struct file *file, unsigned flags, umode_t omode, |
47237687 | 245 | int *opened) |
53c06f4e AK |
246 | { |
247 | int err = 0; | |
d4ef4e35 | 248 | kgid_t gid; |
d3fb6120 | 249 | umode_t mode; |
6b39f6d2 | 250 | char *name = NULL; |
53c06f4e AK |
251 | struct p9_qid qid; |
252 | struct inode *inode; | |
6b39f6d2 AK |
253 | struct p9_fid *fid = NULL; |
254 | struct v9fs_inode *v9inode; | |
255 | struct p9_fid *dfid, *ofid, *inode_fid; | |
256 | struct v9fs_session_info *v9ses; | |
53c06f4e | 257 | struct posix_acl *pacl = NULL, *dacl = NULL; |
e43ae79c | 258 | struct dentry *res = NULL; |
53c06f4e | 259 | |
e43ae79c | 260 | if (d_unhashed(dentry)) { |
00cd8dd3 | 261 | res = v9fs_vfs_lookup(dir, dentry, 0); |
e43ae79c | 262 | if (IS_ERR(res)) |
d9585277 | 263 | return PTR_ERR(res); |
e43ae79c MS |
264 | |
265 | if (res) | |
266 | dentry = res; | |
267 | } | |
268 | ||
269 | /* Only creates */ | |
b6f4bee0 MK |
270 | if (!(flags & O_CREAT)) |
271 | return finish_no_open(file, res); | |
272 | else if (dentry->d_inode) { | |
273 | if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) | |
274 | return -EEXIST; | |
275 | else | |
276 | return finish_no_open(file, res); | |
277 | } | |
53c06f4e | 278 | |
e43ae79c MS |
279 | v9ses = v9fs_inode2v9ses(dir); |
280 | ||
53c06f4e | 281 | name = (char *) dentry->d_name.name; |
609eac1c | 282 | p9_debug(P9_DEBUG_VFS, "name:%s flags:0x%x mode:0x%hx\n", |
5d385153 | 283 | name, flags, omode); |
53c06f4e AK |
284 | |
285 | dfid = v9fs_fid_lookup(dentry->d_parent); | |
286 | if (IS_ERR(dfid)) { | |
287 | err = PTR_ERR(dfid); | |
5d385153 | 288 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
d9585277 | 289 | goto out; |
53c06f4e AK |
290 | } |
291 | ||
292 | /* clone a fid to use for creation */ | |
293 | ofid = p9_client_walk(dfid, 0, NULL, 1); | |
294 | if (IS_ERR(ofid)) { | |
295 | err = PTR_ERR(ofid); | |
5d385153 | 296 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
d9585277 | 297 | goto out; |
53c06f4e AK |
298 | } |
299 | ||
300 | gid = v9fs_get_fsgid_for_create(dir); | |
301 | ||
302 | mode = omode; | |
303 | /* Update mode based on ACL value */ | |
304 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
305 | if (err) { | |
5d385153 JP |
306 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in creat %d\n", |
307 | err); | |
53c06f4e AK |
308 | goto error; |
309 | } | |
f88657ce AK |
310 | err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags), |
311 | mode, gid, &qid); | |
53c06f4e | 312 | if (err < 0) { |
5d385153 JP |
313 | p9_debug(P9_DEBUG_VFS, "p9_client_open_dotl failed in creat %d\n", |
314 | err); | |
53c06f4e AK |
315 | goto error; |
316 | } | |
d28c61f0 | 317 | v9fs_invalidate_inode_attr(dir); |
53c06f4e | 318 | |
af7542fc AK |
319 | /* instantiate inode and assign the unopened fid to the dentry */ |
320 | fid = p9_client_walk(dfid, 1, &name, 1); | |
321 | if (IS_ERR(fid)) { | |
322 | err = PTR_ERR(fid); | |
5d385153 | 323 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
53c06f4e | 324 | fid = NULL; |
af7542fc | 325 | goto error; |
53c06f4e | 326 | } |
ed80fcfa | 327 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
af7542fc AK |
328 | if (IS_ERR(inode)) { |
329 | err = PTR_ERR(inode); | |
5d385153 | 330 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err); |
af7542fc AK |
331 | goto error; |
332 | } | |
3592ac44 AV |
333 | /* Now set the ACL based on the default value */ |
334 | v9fs_set_create_acl(inode, fid, dacl, pacl); | |
335 | ||
af7542fc AK |
336 | err = v9fs_fid_add(dentry, fid); |
337 | if (err < 0) | |
338 | goto error; | |
5441ae5e | 339 | d_instantiate(dentry, inode); |
af7542fc | 340 | |
6b39f6d2 | 341 | v9inode = V9FS_I(inode); |
5a7e0a8c | 342 | mutex_lock(&v9inode->v_mutex); |
7add697a AK |
343 | if (v9ses->cache && !v9inode->writeback_fid && |
344 | ((flags & O_ACCMODE) != O_RDONLY)) { | |
3cf387d7 | 345 | /* |
6b39f6d2 | 346 | * clone a fid and add it to writeback_fid |
3cf387d7 AK |
347 | * we do it during open time instead of |
348 | * page dirty time via write_begin/page_mkwrite | |
349 | * because we want write after unlink usecase | |
350 | * to work. | |
351 | */ | |
352 | inode_fid = v9fs_writeback_fid(dentry); | |
353 | if (IS_ERR(inode_fid)) { | |
354 | err = PTR_ERR(inode_fid); | |
5a7e0a8c | 355 | mutex_unlock(&v9inode->v_mutex); |
398c4f0e | 356 | goto err_clunk_old_fid; |
3cf387d7 | 357 | } |
6b39f6d2 | 358 | v9inode->writeback_fid = (void *) inode_fid; |
3cf387d7 | 359 | } |
5a7e0a8c | 360 | mutex_unlock(&v9inode->v_mutex); |
af7542fc | 361 | /* Since we are opening a file, assign the open fid to the file */ |
30d90494 AV |
362 | err = finish_open(file, dentry, generic_file_open, opened); |
363 | if (err) | |
398c4f0e | 364 | goto err_clunk_old_fid; |
30d90494 | 365 | file->private_data = ofid; |
46848de0 AK |
366 | #ifdef CONFIG_9P_FSCACHE |
367 | if (v9ses->cache) | |
30d90494 | 368 | v9fs_cache_inode_set_cookie(inode, file); |
46848de0 | 369 | #endif |
47237687 | 370 | *opened |= FILE_CREATED; |
e43ae79c | 371 | out: |
5fa6300a | 372 | v9fs_put_acl(dacl, pacl); |
e43ae79c | 373 | dput(res); |
d9585277 | 374 | return err; |
53c06f4e AK |
375 | |
376 | error: | |
53c06f4e AK |
377 | if (fid) |
378 | p9_client_clunk(fid); | |
398c4f0e AK |
379 | err_clunk_old_fid: |
380 | if (ofid) | |
381 | p9_client_clunk(ofid); | |
e43ae79c | 382 | goto out; |
53c06f4e AK |
383 | } |
384 | ||
385 | /** | |
386 | * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory | |
387 | * @dir: inode that is being unlinked | |
388 | * @dentry: dentry that is being unlinked | |
389 | * @mode: mode for new directory | |
390 | * | |
391 | */ | |
392 | ||
393 | static int v9fs_vfs_mkdir_dotl(struct inode *dir, | |
18bb1db3 | 394 | struct dentry *dentry, umode_t omode) |
53c06f4e AK |
395 | { |
396 | int err; | |
397 | struct v9fs_session_info *v9ses; | |
398 | struct p9_fid *fid = NULL, *dfid = NULL; | |
d4ef4e35 | 399 | kgid_t gid; |
53c06f4e | 400 | char *name; |
d3fb6120 | 401 | umode_t mode; |
53c06f4e AK |
402 | struct inode *inode; |
403 | struct p9_qid qid; | |
404 | struct dentry *dir_dentry; | |
405 | struct posix_acl *dacl = NULL, *pacl = NULL; | |
406 | ||
5d385153 | 407 | p9_debug(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name); |
53c06f4e AK |
408 | err = 0; |
409 | v9ses = v9fs_inode2v9ses(dir); | |
410 | ||
411 | omode |= S_IFDIR; | |
412 | if (dir->i_mode & S_ISGID) | |
413 | omode |= S_ISGID; | |
414 | ||
af569596 | 415 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
416 | dfid = v9fs_fid_lookup(dir_dentry); |
417 | if (IS_ERR(dfid)) { | |
418 | err = PTR_ERR(dfid); | |
5d385153 | 419 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
420 | dfid = NULL; |
421 | goto error; | |
422 | } | |
423 | ||
424 | gid = v9fs_get_fsgid_for_create(dir); | |
425 | mode = omode; | |
426 | /* Update mode based on ACL value */ | |
427 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
428 | if (err) { | |
5d385153 JP |
429 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mkdir %d\n", |
430 | err); | |
53c06f4e AK |
431 | goto error; |
432 | } | |
433 | name = (char *) dentry->d_name.name; | |
434 | err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid); | |
435 | if (err < 0) | |
436 | goto error; | |
437 | ||
3592ac44 AV |
438 | fid = p9_client_walk(dfid, 1, &name, 1); |
439 | if (IS_ERR(fid)) { | |
440 | err = PTR_ERR(fid); | |
441 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", | |
442 | err); | |
443 | fid = NULL; | |
444 | goto error; | |
445 | } | |
446 | ||
53c06f4e AK |
447 | /* instantiate inode and assign the unopened fid to the dentry */ |
448 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { | |
ed80fcfa | 449 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
450 | if (IS_ERR(inode)) { |
451 | err = PTR_ERR(inode); | |
5d385153 JP |
452 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
453 | err); | |
53c06f4e AK |
454 | goto error; |
455 | } | |
53c06f4e AK |
456 | err = v9fs_fid_add(dentry, fid); |
457 | if (err < 0) | |
458 | goto error; | |
3592ac44 | 459 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
5441ae5e | 460 | d_instantiate(dentry, inode); |
53c06f4e AK |
461 | fid = NULL; |
462 | } else { | |
463 | /* | |
464 | * Not in cached mode. No need to populate | |
465 | * inode with stat. We need to get an inode | |
466 | * so that we can set the acl with dentry | |
467 | */ | |
45089142 | 468 | inode = v9fs_get_inode(dir->i_sb, mode, 0); |
53c06f4e AK |
469 | if (IS_ERR(inode)) { |
470 | err = PTR_ERR(inode); | |
471 | goto error; | |
472 | } | |
3592ac44 | 473 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
53c06f4e AK |
474 | d_instantiate(dentry, inode); |
475 | } | |
b271ec47 | 476 | inc_nlink(dir); |
d28c61f0 | 477 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
478 | error: |
479 | if (fid) | |
480 | p9_client_clunk(fid); | |
5fa6300a | 481 | v9fs_put_acl(dacl, pacl); |
53c06f4e AK |
482 | return err; |
483 | } | |
484 | ||
485 | static int | |
486 | v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry, | |
487 | struct kstat *stat) | |
488 | { | |
489 | int err; | |
490 | struct v9fs_session_info *v9ses; | |
491 | struct p9_fid *fid; | |
492 | struct p9_stat_dotl *st; | |
493 | ||
5d385153 | 494 | p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry); |
53c06f4e | 495 | err = -EPERM; |
42869c8a | 496 | v9ses = v9fs_dentry2v9ses(dentry); |
a1211908 AK |
497 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { |
498 | generic_fillattr(dentry->d_inode, stat); | |
499 | return 0; | |
500 | } | |
53c06f4e AK |
501 | fid = v9fs_fid_lookup(dentry); |
502 | if (IS_ERR(fid)) | |
503 | return PTR_ERR(fid); | |
504 | ||
505 | /* Ask for all the fields in stat structure. Server will return | |
506 | * whatever it supports | |
507 | */ | |
508 | ||
509 | st = p9_client_getattr_dotl(fid, P9_STATS_ALL); | |
510 | if (IS_ERR(st)) | |
511 | return PTR_ERR(st); | |
512 | ||
513 | v9fs_stat2inode_dotl(st, dentry->d_inode); | |
514 | generic_fillattr(dentry->d_inode, stat); | |
515 | /* Change block size to what the server returned */ | |
516 | stat->blksize = st->st_blksize; | |
517 | ||
518 | kfree(st); | |
519 | return 0; | |
520 | } | |
521 | ||
f766619d AK |
522 | /* |
523 | * Attribute flags. | |
524 | */ | |
525 | #define P9_ATTR_MODE (1 << 0) | |
526 | #define P9_ATTR_UID (1 << 1) | |
527 | #define P9_ATTR_GID (1 << 2) | |
528 | #define P9_ATTR_SIZE (1 << 3) | |
529 | #define P9_ATTR_ATIME (1 << 4) | |
530 | #define P9_ATTR_MTIME (1 << 5) | |
531 | #define P9_ATTR_CTIME (1 << 6) | |
532 | #define P9_ATTR_ATIME_SET (1 << 7) | |
533 | #define P9_ATTR_MTIME_SET (1 << 8) | |
534 | ||
535 | struct dotl_iattr_map { | |
536 | int iattr_valid; | |
537 | int p9_iattr_valid; | |
538 | }; | |
539 | ||
540 | static int v9fs_mapped_iattr_valid(int iattr_valid) | |
541 | { | |
542 | int i; | |
543 | int p9_iattr_valid = 0; | |
544 | struct dotl_iattr_map dotl_iattr_map[] = { | |
545 | { ATTR_MODE, P9_ATTR_MODE }, | |
546 | { ATTR_UID, P9_ATTR_UID }, | |
547 | { ATTR_GID, P9_ATTR_GID }, | |
548 | { ATTR_SIZE, P9_ATTR_SIZE }, | |
549 | { ATTR_ATIME, P9_ATTR_ATIME }, | |
550 | { ATTR_MTIME, P9_ATTR_MTIME }, | |
551 | { ATTR_CTIME, P9_ATTR_CTIME }, | |
552 | { ATTR_ATIME_SET, P9_ATTR_ATIME_SET }, | |
553 | { ATTR_MTIME_SET, P9_ATTR_MTIME_SET }, | |
554 | }; | |
555 | for (i = 0; i < ARRAY_SIZE(dotl_iattr_map); i++) { | |
556 | if (iattr_valid & dotl_iattr_map[i].iattr_valid) | |
557 | p9_iattr_valid |= dotl_iattr_map[i].p9_iattr_valid; | |
558 | } | |
559 | return p9_iattr_valid; | |
560 | } | |
561 | ||
53c06f4e AK |
562 | /** |
563 | * v9fs_vfs_setattr_dotl - set file metadata | |
564 | * @dentry: file whose metadata to set | |
565 | * @iattr: metadata assignment structure | |
566 | * | |
567 | */ | |
568 | ||
569 | int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr) | |
570 | { | |
571 | int retval; | |
572 | struct v9fs_session_info *v9ses; | |
573 | struct p9_fid *fid; | |
574 | struct p9_iattr_dotl p9attr; | |
be308f07 | 575 | struct inode *inode = dentry->d_inode; |
53c06f4e | 576 | |
5d385153 | 577 | p9_debug(P9_DEBUG_VFS, "\n"); |
53c06f4e | 578 | |
be308f07 | 579 | retval = inode_change_ok(inode, iattr); |
53c06f4e AK |
580 | if (retval) |
581 | return retval; | |
582 | ||
f766619d | 583 | p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid); |
53c06f4e AK |
584 | p9attr.mode = iattr->ia_mode; |
585 | p9attr.uid = iattr->ia_uid; | |
586 | p9attr.gid = iattr->ia_gid; | |
587 | p9attr.size = iattr->ia_size; | |
588 | p9attr.atime_sec = iattr->ia_atime.tv_sec; | |
589 | p9attr.atime_nsec = iattr->ia_atime.tv_nsec; | |
590 | p9attr.mtime_sec = iattr->ia_mtime.tv_sec; | |
591 | p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec; | |
592 | ||
593 | retval = -EPERM; | |
42869c8a | 594 | v9ses = v9fs_dentry2v9ses(dentry); |
53c06f4e AK |
595 | fid = v9fs_fid_lookup(dentry); |
596 | if (IS_ERR(fid)) | |
597 | return PTR_ERR(fid); | |
598 | ||
3dc5436a | 599 | /* Write all dirty data */ |
be308f07 AV |
600 | if (S_ISREG(inode->i_mode)) |
601 | filemap_write_and_wait(inode->i_mapping); | |
3dc5436a | 602 | |
f10fc50f AK |
603 | retval = p9_client_setattr(fid, &p9attr); |
604 | if (retval < 0) | |
605 | return retval; | |
53c06f4e | 606 | |
059c138b | 607 | if ((iattr->ia_valid & ATTR_SIZE) && |
be308f07 AV |
608 | iattr->ia_size != i_size_read(inode)) |
609 | truncate_setsize(inode, iattr->ia_size); | |
059c138b | 610 | |
be308f07 AV |
611 | v9fs_invalidate_inode_attr(inode); |
612 | setattr_copy(inode, iattr); | |
613 | mark_inode_dirty(inode); | |
53c06f4e AK |
614 | if (iattr->ia_valid & ATTR_MODE) { |
615 | /* We also want to update ACL when we update mode bits */ | |
be308f07 | 616 | retval = v9fs_acl_chmod(inode, fid); |
53c06f4e AK |
617 | if (retval < 0) |
618 | return retval; | |
619 | } | |
620 | return 0; | |
621 | } | |
622 | ||
623 | /** | |
624 | * v9fs_stat2inode_dotl - populate an inode structure with stat info | |
625 | * @stat: stat structure | |
626 | * @inode: inode to populate | |
627 | * @sb: superblock of filesystem | |
628 | * | |
629 | */ | |
630 | ||
631 | void | |
632 | v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode) | |
633 | { | |
3eda0de6 | 634 | umode_t mode; |
b3cbea03 | 635 | struct v9fs_inode *v9inode = V9FS_I(inode); |
53c06f4e AK |
636 | |
637 | if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) { | |
638 | inode->i_atime.tv_sec = stat->st_atime_sec; | |
639 | inode->i_atime.tv_nsec = stat->st_atime_nsec; | |
640 | inode->i_mtime.tv_sec = stat->st_mtime_sec; | |
641 | inode->i_mtime.tv_nsec = stat->st_mtime_nsec; | |
642 | inode->i_ctime.tv_sec = stat->st_ctime_sec; | |
643 | inode->i_ctime.tv_nsec = stat->st_ctime_nsec; | |
644 | inode->i_uid = stat->st_uid; | |
645 | inode->i_gid = stat->st_gid; | |
bfe86848 | 646 | set_nlink(inode, stat->st_nlink); |
53c06f4e | 647 | |
45089142 AK |
648 | mode = stat->st_mode & S_IALLUGO; |
649 | mode |= inode->i_mode & ~S_IALLUGO; | |
650 | inode->i_mode = mode; | |
53c06f4e AK |
651 | |
652 | i_size_write(inode, stat->st_size); | |
653 | inode->i_blocks = stat->st_blocks; | |
654 | } else { | |
655 | if (stat->st_result_mask & P9_STATS_ATIME) { | |
656 | inode->i_atime.tv_sec = stat->st_atime_sec; | |
657 | inode->i_atime.tv_nsec = stat->st_atime_nsec; | |
658 | } | |
659 | if (stat->st_result_mask & P9_STATS_MTIME) { | |
660 | inode->i_mtime.tv_sec = stat->st_mtime_sec; | |
661 | inode->i_mtime.tv_nsec = stat->st_mtime_nsec; | |
662 | } | |
663 | if (stat->st_result_mask & P9_STATS_CTIME) { | |
664 | inode->i_ctime.tv_sec = stat->st_ctime_sec; | |
665 | inode->i_ctime.tv_nsec = stat->st_ctime_nsec; | |
666 | } | |
667 | if (stat->st_result_mask & P9_STATS_UID) | |
668 | inode->i_uid = stat->st_uid; | |
669 | if (stat->st_result_mask & P9_STATS_GID) | |
670 | inode->i_gid = stat->st_gid; | |
671 | if (stat->st_result_mask & P9_STATS_NLINK) | |
bfe86848 | 672 | set_nlink(inode, stat->st_nlink); |
53c06f4e AK |
673 | if (stat->st_result_mask & P9_STATS_MODE) { |
674 | inode->i_mode = stat->st_mode; | |
675 | if ((S_ISBLK(inode->i_mode)) || | |
676 | (S_ISCHR(inode->i_mode))) | |
677 | init_special_inode(inode, inode->i_mode, | |
678 | inode->i_rdev); | |
679 | } | |
680 | if (stat->st_result_mask & P9_STATS_RDEV) | |
681 | inode->i_rdev = new_decode_dev(stat->st_rdev); | |
682 | if (stat->st_result_mask & P9_STATS_SIZE) | |
683 | i_size_write(inode, stat->st_size); | |
684 | if (stat->st_result_mask & P9_STATS_BLOCKS) | |
685 | inode->i_blocks = stat->st_blocks; | |
686 | } | |
687 | if (stat->st_result_mask & P9_STATS_GEN) | |
fd2421f5 | 688 | inode->i_generation = stat->st_gen; |
53c06f4e AK |
689 | |
690 | /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION | |
691 | * because the inode structure does not have fields for them. | |
692 | */ | |
b3cbea03 | 693 | v9inode->cache_validity &= ~V9FS_INO_INVALID_ATTR; |
53c06f4e AK |
694 | } |
695 | ||
696 | static int | |
697 | v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry, | |
698 | const char *symname) | |
699 | { | |
53c06f4e | 700 | int err; |
d4ef4e35 | 701 | kgid_t gid; |
d28c61f0 AK |
702 | char *name; |
703 | struct p9_qid qid; | |
704 | struct inode *inode; | |
705 | struct p9_fid *dfid; | |
706 | struct p9_fid *fid = NULL; | |
707 | struct v9fs_session_info *v9ses; | |
53c06f4e AK |
708 | |
709 | name = (char *) dentry->d_name.name; | |
5d385153 | 710 | p9_debug(P9_DEBUG_VFS, "%lu,%s,%s\n", dir->i_ino, name, symname); |
53c06f4e AK |
711 | v9ses = v9fs_inode2v9ses(dir); |
712 | ||
713 | dfid = v9fs_fid_lookup(dentry->d_parent); | |
714 | if (IS_ERR(dfid)) { | |
715 | err = PTR_ERR(dfid); | |
5d385153 | 716 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
717 | return err; |
718 | } | |
719 | ||
720 | gid = v9fs_get_fsgid_for_create(dir); | |
721 | ||
722 | /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */ | |
723 | err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid); | |
724 | ||
725 | if (err < 0) { | |
5d385153 | 726 | p9_debug(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err); |
53c06f4e AK |
727 | goto error; |
728 | } | |
729 | ||
d28c61f0 | 730 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
731 | if (v9ses->cache) { |
732 | /* Now walk from the parent so we can get an unopened fid. */ | |
733 | fid = p9_client_walk(dfid, 1, &name, 1); | |
734 | if (IS_ERR(fid)) { | |
735 | err = PTR_ERR(fid); | |
5d385153 JP |
736 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", |
737 | err); | |
53c06f4e AK |
738 | fid = NULL; |
739 | goto error; | |
740 | } | |
741 | ||
742 | /* instantiate inode and assign the unopened fid to dentry */ | |
ed80fcfa | 743 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
744 | if (IS_ERR(inode)) { |
745 | err = PTR_ERR(inode); | |
5d385153 JP |
746 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
747 | err); | |
53c06f4e AK |
748 | goto error; |
749 | } | |
53c06f4e AK |
750 | err = v9fs_fid_add(dentry, fid); |
751 | if (err < 0) | |
752 | goto error; | |
5441ae5e | 753 | d_instantiate(dentry, inode); |
53c06f4e AK |
754 | fid = NULL; |
755 | } else { | |
756 | /* Not in cached mode. No need to populate inode with stat */ | |
45089142 | 757 | inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0); |
53c06f4e AK |
758 | if (IS_ERR(inode)) { |
759 | err = PTR_ERR(inode); | |
760 | goto error; | |
761 | } | |
53c06f4e AK |
762 | d_instantiate(dentry, inode); |
763 | } | |
764 | ||
765 | error: | |
766 | if (fid) | |
767 | p9_client_clunk(fid); | |
768 | ||
769 | return err; | |
770 | } | |
771 | ||
772 | /** | |
773 | * v9fs_vfs_link_dotl - create a hardlink for dotl | |
774 | * @old_dentry: dentry for file to link to | |
775 | * @dir: inode destination for new link | |
776 | * @dentry: dentry for link | |
777 | * | |
778 | */ | |
779 | ||
780 | static int | |
781 | v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir, | |
782 | struct dentry *dentry) | |
783 | { | |
784 | int err; | |
53c06f4e | 785 | char *name; |
53c06f4e | 786 | struct dentry *dir_dentry; |
d28c61f0 AK |
787 | struct p9_fid *dfid, *oldfid; |
788 | struct v9fs_session_info *v9ses; | |
53c06f4e | 789 | |
5d385153 JP |
790 | p9_debug(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n", |
791 | dir->i_ino, old_dentry->d_name.name, dentry->d_name.name); | |
53c06f4e AK |
792 | |
793 | v9ses = v9fs_inode2v9ses(dir); | |
af569596 | 794 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
795 | dfid = v9fs_fid_lookup(dir_dentry); |
796 | if (IS_ERR(dfid)) | |
797 | return PTR_ERR(dfid); | |
798 | ||
799 | oldfid = v9fs_fid_lookup(old_dentry); | |
800 | if (IS_ERR(oldfid)) | |
801 | return PTR_ERR(oldfid); | |
802 | ||
803 | name = (char *) dentry->d_name.name; | |
804 | ||
805 | err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name); | |
806 | ||
807 | if (err < 0) { | |
5d385153 | 808 | p9_debug(P9_DEBUG_VFS, "p9_client_link failed %d\n", err); |
53c06f4e AK |
809 | return err; |
810 | } | |
811 | ||
d28c61f0 | 812 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
813 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { |
814 | /* Get the latest stat info from server. */ | |
815 | struct p9_fid *fid; | |
53c06f4e AK |
816 | fid = v9fs_fid_lookup(old_dentry); |
817 | if (IS_ERR(fid)) | |
818 | return PTR_ERR(fid); | |
819 | ||
c06c066a | 820 | v9fs_refresh_inode_dotl(fid, old_dentry->d_inode); |
53c06f4e | 821 | } |
20656a49 | 822 | ihold(old_dentry->d_inode); |
53c06f4e AK |
823 | d_instantiate(dentry, old_dentry->d_inode); |
824 | ||
825 | return err; | |
826 | } | |
827 | ||
828 | /** | |
829 | * v9fs_vfs_mknod_dotl - create a special file | |
830 | * @dir: inode destination for new link | |
831 | * @dentry: dentry for file | |
832 | * @mode: mode for creation | |
833 | * @rdev: device associated with special file | |
834 | * | |
835 | */ | |
836 | static int | |
1a67aafb | 837 | v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode, |
53c06f4e AK |
838 | dev_t rdev) |
839 | { | |
840 | int err; | |
d4ef4e35 | 841 | kgid_t gid; |
53c06f4e | 842 | char *name; |
d3fb6120 | 843 | umode_t mode; |
53c06f4e AK |
844 | struct v9fs_session_info *v9ses; |
845 | struct p9_fid *fid = NULL, *dfid = NULL; | |
846 | struct inode *inode; | |
53c06f4e AK |
847 | struct p9_qid qid; |
848 | struct dentry *dir_dentry; | |
849 | struct posix_acl *dacl = NULL, *pacl = NULL; | |
850 | ||
609eac1c | 851 | p9_debug(P9_DEBUG_VFS, " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", |
5d385153 JP |
852 | dir->i_ino, dentry->d_name.name, omode, |
853 | MAJOR(rdev), MINOR(rdev)); | |
53c06f4e AK |
854 | |
855 | if (!new_valid_dev(rdev)) | |
856 | return -EINVAL; | |
857 | ||
858 | v9ses = v9fs_inode2v9ses(dir); | |
af569596 | 859 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
860 | dfid = v9fs_fid_lookup(dir_dentry); |
861 | if (IS_ERR(dfid)) { | |
862 | err = PTR_ERR(dfid); | |
5d385153 | 863 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
864 | dfid = NULL; |
865 | goto error; | |
866 | } | |
867 | ||
868 | gid = v9fs_get_fsgid_for_create(dir); | |
869 | mode = omode; | |
870 | /* Update mode based on ACL value */ | |
871 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
872 | if (err) { | |
5d385153 JP |
873 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mknod %d\n", |
874 | err); | |
53c06f4e AK |
875 | goto error; |
876 | } | |
877 | name = (char *) dentry->d_name.name; | |
878 | ||
879 | err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid); | |
880 | if (err < 0) | |
881 | goto error; | |
882 | ||
d28c61f0 | 883 | v9fs_invalidate_inode_attr(dir); |
3592ac44 AV |
884 | fid = p9_client_walk(dfid, 1, &name, 1); |
885 | if (IS_ERR(fid)) { | |
886 | err = PTR_ERR(fid); | |
887 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", | |
888 | err); | |
889 | fid = NULL; | |
890 | goto error; | |
891 | } | |
892 | ||
53c06f4e AK |
893 | /* instantiate inode and assign the unopened fid to the dentry */ |
894 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { | |
ed80fcfa | 895 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
896 | if (IS_ERR(inode)) { |
897 | err = PTR_ERR(inode); | |
5d385153 JP |
898 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
899 | err); | |
53c06f4e AK |
900 | goto error; |
901 | } | |
3592ac44 | 902 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
53c06f4e AK |
903 | err = v9fs_fid_add(dentry, fid); |
904 | if (err < 0) | |
905 | goto error; | |
5441ae5e | 906 | d_instantiate(dentry, inode); |
53c06f4e AK |
907 | fid = NULL; |
908 | } else { | |
909 | /* | |
910 | * Not in cached mode. No need to populate inode with stat. | |
911 | * socket syscall returns a fd, so we need instantiate | |
912 | */ | |
45089142 | 913 | inode = v9fs_get_inode(dir->i_sb, mode, rdev); |
53c06f4e AK |
914 | if (IS_ERR(inode)) { |
915 | err = PTR_ERR(inode); | |
916 | goto error; | |
917 | } | |
3592ac44 | 918 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
53c06f4e AK |
919 | d_instantiate(dentry, inode); |
920 | } | |
53c06f4e AK |
921 | error: |
922 | if (fid) | |
923 | p9_client_clunk(fid); | |
5fa6300a | 924 | v9fs_put_acl(dacl, pacl); |
53c06f4e AK |
925 | return err; |
926 | } | |
927 | ||
53c06f4e AK |
928 | /** |
929 | * v9fs_vfs_follow_link_dotl - follow a symlink path | |
930 | * @dentry: dentry for symlink | |
931 | * @nd: nameidata | |
932 | * | |
933 | */ | |
934 | ||
935 | static void * | |
936 | v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd) | |
937 | { | |
31b6ceac MK |
938 | int retval; |
939 | struct p9_fid *fid; | |
53c06f4e | 940 | char *link = __getname(); |
31b6ceac | 941 | char *target; |
53c06f4e | 942 | |
5d385153 | 943 | p9_debug(P9_DEBUG_VFS, "%s\n", dentry->d_name.name); |
53c06f4e | 944 | |
31b6ceac | 945 | if (!link) { |
53c06f4e | 946 | link = ERR_PTR(-ENOMEM); |
31b6ceac | 947 | goto ndset; |
53c06f4e | 948 | } |
31b6ceac MK |
949 | fid = v9fs_fid_lookup(dentry); |
950 | if (IS_ERR(fid)) { | |
951 | __putname(link); | |
936bb2d7 | 952 | link = ERR_CAST(fid); |
31b6ceac MK |
953 | goto ndset; |
954 | } | |
955 | retval = p9_client_readlink(fid, &target); | |
956 | if (!retval) { | |
957 | strcpy(link, target); | |
958 | kfree(target); | |
959 | goto ndset; | |
960 | } | |
961 | __putname(link); | |
962 | link = ERR_PTR(retval); | |
963 | ndset: | |
53c06f4e | 964 | nd_set_link(nd, link); |
53c06f4e AK |
965 | return NULL; |
966 | } | |
967 | ||
b3cbea03 AK |
968 | int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode) |
969 | { | |
970 | loff_t i_size; | |
971 | struct p9_stat_dotl *st; | |
972 | struct v9fs_session_info *v9ses; | |
973 | ||
974 | v9ses = v9fs_inode2v9ses(inode); | |
975 | st = p9_client_getattr_dotl(fid, P9_STATS_ALL); | |
976 | if (IS_ERR(st)) | |
977 | return PTR_ERR(st); | |
45089142 AK |
978 | /* |
979 | * Don't update inode if the file type is different | |
980 | */ | |
981 | if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT)) | |
982 | goto out; | |
b3cbea03 AK |
983 | |
984 | spin_lock(&inode->i_lock); | |
985 | /* | |
986 | * We don't want to refresh inode->i_size, | |
987 | * because we may have cached data | |
988 | */ | |
989 | i_size = inode->i_size; | |
990 | v9fs_stat2inode_dotl(st, inode); | |
991 | if (v9ses->cache) | |
992 | inode->i_size = i_size; | |
993 | spin_unlock(&inode->i_lock); | |
45089142 | 994 | out: |
b3cbea03 AK |
995 | kfree(st); |
996 | return 0; | |
997 | } | |
998 | ||
53c06f4e AK |
999 | const struct inode_operations v9fs_dir_inode_operations_dotl = { |
1000 | .create = v9fs_vfs_create_dotl, | |
e43ae79c | 1001 | .atomic_open = v9fs_vfs_atomic_open_dotl, |
53c06f4e AK |
1002 | .lookup = v9fs_vfs_lookup, |
1003 | .link = v9fs_vfs_link_dotl, | |
1004 | .symlink = v9fs_vfs_symlink_dotl, | |
1005 | .unlink = v9fs_vfs_unlink, | |
1006 | .mkdir = v9fs_vfs_mkdir_dotl, | |
1007 | .rmdir = v9fs_vfs_rmdir, | |
1008 | .mknod = v9fs_vfs_mknod_dotl, | |
1009 | .rename = v9fs_vfs_rename, | |
1010 | .getattr = v9fs_vfs_getattr_dotl, | |
1011 | .setattr = v9fs_vfs_setattr_dotl, | |
1012 | .setxattr = generic_setxattr, | |
1013 | .getxattr = generic_getxattr, | |
1014 | .removexattr = generic_removexattr, | |
1015 | .listxattr = v9fs_listxattr, | |
4e34e719 | 1016 | .get_acl = v9fs_iop_get_acl, |
53c06f4e AK |
1017 | }; |
1018 | ||
1019 | const struct inode_operations v9fs_file_inode_operations_dotl = { | |
1020 | .getattr = v9fs_vfs_getattr_dotl, | |
1021 | .setattr = v9fs_vfs_setattr_dotl, | |
1022 | .setxattr = generic_setxattr, | |
1023 | .getxattr = generic_getxattr, | |
1024 | .removexattr = generic_removexattr, | |
1025 | .listxattr = v9fs_listxattr, | |
4e34e719 | 1026 | .get_acl = v9fs_iop_get_acl, |
53c06f4e AK |
1027 | }; |
1028 | ||
1029 | const struct inode_operations v9fs_symlink_inode_operations_dotl = { | |
31b6ceac | 1030 | .readlink = generic_readlink, |
53c06f4e AK |
1031 | .follow_link = v9fs_vfs_follow_link_dotl, |
1032 | .put_link = v9fs_vfs_put_link, | |
1033 | .getattr = v9fs_vfs_getattr_dotl, | |
1034 | .setattr = v9fs_vfs_setattr_dotl, | |
1035 | .setxattr = generic_setxattr, | |
1036 | .getxattr = generic_getxattr, | |
1037 | .removexattr = generic_removexattr, | |
1038 | .listxattr = v9fs_listxattr, | |
1039 | }; |