Commit | Line | Data |
---|---|---|
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: | |
b5a1d545 | 154 | iget_failed(inode); |
5ffc0cb3 AK |
155 | return ERR_PTR(retval); |
156 | ||
157 | } | |
158 | ||
53c06f4e | 159 | struct inode * |
a78ce05d | 160 | v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid, |
ed80fcfa | 161 | struct super_block *sb, int new) |
53c06f4e | 162 | { |
53c06f4e | 163 | struct p9_stat_dotl *st; |
5ffc0cb3 | 164 | struct inode *inode = NULL; |
53c06f4e | 165 | |
fd2421f5 | 166 | st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN); |
53c06f4e AK |
167 | if (IS_ERR(st)) |
168 | return ERR_CAST(st); | |
169 | ||
ed80fcfa | 170 | inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st, new); |
53c06f4e | 171 | kfree(st); |
5ffc0cb3 | 172 | return inode; |
53c06f4e AK |
173 | } |
174 | ||
f88657ce AK |
175 | struct dotl_openflag_map { |
176 | int open_flag; | |
177 | int dotl_flag; | |
178 | }; | |
179 | ||
180 | static int v9fs_mapped_dotl_flags(int flags) | |
181 | { | |
182 | int i; | |
183 | int rflags = 0; | |
184 | struct dotl_openflag_map dotl_oflag_map[] = { | |
185 | { O_CREAT, P9_DOTL_CREATE }, | |
186 | { O_EXCL, P9_DOTL_EXCL }, | |
187 | { O_NOCTTY, P9_DOTL_NOCTTY }, | |
f88657ce AK |
188 | { O_APPEND, P9_DOTL_APPEND }, |
189 | { O_NONBLOCK, P9_DOTL_NONBLOCK }, | |
190 | { O_DSYNC, P9_DOTL_DSYNC }, | |
191 | { FASYNC, P9_DOTL_FASYNC }, | |
192 | { O_DIRECT, P9_DOTL_DIRECT }, | |
193 | { O_LARGEFILE, P9_DOTL_LARGEFILE }, | |
194 | { O_DIRECTORY, P9_DOTL_DIRECTORY }, | |
195 | { O_NOFOLLOW, P9_DOTL_NOFOLLOW }, | |
196 | { O_NOATIME, P9_DOTL_NOATIME }, | |
197 | { O_CLOEXEC, P9_DOTL_CLOEXEC }, | |
198 | { O_SYNC, P9_DOTL_SYNC}, | |
199 | }; | |
200 | for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) { | |
201 | if (flags & dotl_oflag_map[i].open_flag) | |
202 | rflags |= dotl_oflag_map[i].dotl_flag; | |
203 | } | |
204 | return rflags; | |
205 | } | |
206 | ||
207 | /** | |
208 | * v9fs_open_to_dotl_flags- convert Linux specific open flags to | |
209 | * plan 9 open flag. | |
210 | * @flags: flags to convert | |
211 | */ | |
212 | int v9fs_open_to_dotl_flags(int flags) | |
213 | { | |
214 | int rflags = 0; | |
215 | ||
216 | /* | |
217 | * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY | |
218 | * and P9_DOTL_NOACCESS | |
219 | */ | |
220 | rflags |= flags & O_ACCMODE; | |
221 | rflags |= v9fs_mapped_dotl_flags(flags); | |
222 | ||
223 | return rflags; | |
224 | } | |
225 | ||
53c06f4e AK |
226 | /** |
227 | * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol. | |
228 | * @dir: directory inode that is being created | |
229 | * @dentry: dentry that is being deleted | |
230 | * @mode: create permissions | |
53c06f4e AK |
231 | * |
232 | */ | |
233 | ||
234 | static int | |
4acdaf27 | 235 | v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode, |
ebfc3b49 | 236 | bool excl) |
e43ae79c MS |
237 | { |
238 | return v9fs_vfs_mknod_dotl(dir, dentry, omode, 0); | |
239 | } | |
240 | ||
d9585277 | 241 | static int |
e43ae79c | 242 | v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry, |
30d90494 | 243 | struct file *file, unsigned flags, umode_t omode, |
47237687 | 244 | int *opened) |
53c06f4e AK |
245 | { |
246 | int err = 0; | |
d4ef4e35 | 247 | kgid_t gid; |
d3fb6120 | 248 | umode_t mode; |
6b39f6d2 | 249 | char *name = NULL; |
53c06f4e AK |
250 | struct p9_qid qid; |
251 | struct inode *inode; | |
6b39f6d2 AK |
252 | struct p9_fid *fid = NULL; |
253 | struct v9fs_inode *v9inode; | |
254 | struct p9_fid *dfid, *ofid, *inode_fid; | |
255 | struct v9fs_session_info *v9ses; | |
53c06f4e | 256 | struct posix_acl *pacl = NULL, *dacl = NULL; |
e43ae79c | 257 | struct dentry *res = NULL; |
53c06f4e | 258 | |
e43ae79c | 259 | if (d_unhashed(dentry)) { |
00cd8dd3 | 260 | res = v9fs_vfs_lookup(dir, dentry, 0); |
e43ae79c | 261 | if (IS_ERR(res)) |
d9585277 | 262 | return PTR_ERR(res); |
e43ae79c MS |
263 | |
264 | if (res) | |
265 | dentry = res; | |
266 | } | |
267 | ||
268 | /* Only creates */ | |
b6f4bee0 MK |
269 | if (!(flags & O_CREAT)) |
270 | return finish_no_open(file, res); | |
271 | else if (dentry->d_inode) { | |
272 | if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) | |
273 | return -EEXIST; | |
274 | else | |
275 | return finish_no_open(file, res); | |
276 | } | |
53c06f4e | 277 | |
e43ae79c MS |
278 | v9ses = v9fs_inode2v9ses(dir); |
279 | ||
53c06f4e | 280 | name = (char *) dentry->d_name.name; |
609eac1c | 281 | p9_debug(P9_DEBUG_VFS, "name:%s flags:0x%x mode:0x%hx\n", |
5d385153 | 282 | name, flags, omode); |
53c06f4e AK |
283 | |
284 | dfid = v9fs_fid_lookup(dentry->d_parent); | |
285 | if (IS_ERR(dfid)) { | |
286 | err = PTR_ERR(dfid); | |
5d385153 | 287 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
d9585277 | 288 | goto out; |
53c06f4e AK |
289 | } |
290 | ||
291 | /* clone a fid to use for creation */ | |
292 | ofid = p9_client_walk(dfid, 0, NULL, 1); | |
293 | if (IS_ERR(ofid)) { | |
294 | err = PTR_ERR(ofid); | |
5d385153 | 295 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
d9585277 | 296 | goto out; |
53c06f4e AK |
297 | } |
298 | ||
299 | gid = v9fs_get_fsgid_for_create(dir); | |
300 | ||
301 | mode = omode; | |
302 | /* Update mode based on ACL value */ | |
303 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
304 | if (err) { | |
5d385153 JP |
305 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in creat %d\n", |
306 | err); | |
53c06f4e AK |
307 | goto error; |
308 | } | |
f88657ce AK |
309 | err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags), |
310 | mode, gid, &qid); | |
53c06f4e | 311 | if (err < 0) { |
5d385153 JP |
312 | p9_debug(P9_DEBUG_VFS, "p9_client_open_dotl failed in creat %d\n", |
313 | err); | |
53c06f4e AK |
314 | goto error; |
315 | } | |
d28c61f0 | 316 | v9fs_invalidate_inode_attr(dir); |
53c06f4e | 317 | |
af7542fc AK |
318 | /* instantiate inode and assign the unopened fid to the dentry */ |
319 | fid = p9_client_walk(dfid, 1, &name, 1); | |
320 | if (IS_ERR(fid)) { | |
321 | err = PTR_ERR(fid); | |
5d385153 | 322 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err); |
53c06f4e | 323 | fid = NULL; |
af7542fc | 324 | goto error; |
53c06f4e | 325 | } |
ed80fcfa | 326 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
af7542fc AK |
327 | if (IS_ERR(inode)) { |
328 | err = PTR_ERR(inode); | |
5d385153 | 329 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err); |
af7542fc AK |
330 | goto error; |
331 | } | |
3592ac44 AV |
332 | /* Now set the ACL based on the default value */ |
333 | v9fs_set_create_acl(inode, fid, dacl, pacl); | |
334 | ||
2ea03e1d | 335 | v9fs_fid_add(dentry, fid); |
5441ae5e | 336 | d_instantiate(dentry, inode); |
af7542fc | 337 | |
6b39f6d2 | 338 | v9inode = V9FS_I(inode); |
5a7e0a8c | 339 | mutex_lock(&v9inode->v_mutex); |
7add697a AK |
340 | if (v9ses->cache && !v9inode->writeback_fid && |
341 | ((flags & O_ACCMODE) != O_RDONLY)) { | |
3cf387d7 | 342 | /* |
6b39f6d2 | 343 | * clone a fid and add it to writeback_fid |
3cf387d7 AK |
344 | * we do it during open time instead of |
345 | * page dirty time via write_begin/page_mkwrite | |
346 | * because we want write after unlink usecase | |
347 | * to work. | |
348 | */ | |
349 | inode_fid = v9fs_writeback_fid(dentry); | |
350 | if (IS_ERR(inode_fid)) { | |
351 | err = PTR_ERR(inode_fid); | |
5a7e0a8c | 352 | mutex_unlock(&v9inode->v_mutex); |
398c4f0e | 353 | goto err_clunk_old_fid; |
3cf387d7 | 354 | } |
6b39f6d2 | 355 | v9inode->writeback_fid = (void *) inode_fid; |
3cf387d7 | 356 | } |
5a7e0a8c | 357 | mutex_unlock(&v9inode->v_mutex); |
af7542fc | 358 | /* Since we are opening a file, assign the open fid to the file */ |
30d90494 AV |
359 | err = finish_open(file, dentry, generic_file_open, opened); |
360 | if (err) | |
398c4f0e | 361 | goto err_clunk_old_fid; |
30d90494 | 362 | file->private_data = ofid; |
46848de0 AK |
363 | #ifdef CONFIG_9P_FSCACHE |
364 | if (v9ses->cache) | |
30d90494 | 365 | v9fs_cache_inode_set_cookie(inode, file); |
46848de0 | 366 | #endif |
47237687 | 367 | *opened |= FILE_CREATED; |
e43ae79c | 368 | out: |
5fa6300a | 369 | v9fs_put_acl(dacl, pacl); |
e43ae79c | 370 | dput(res); |
d9585277 | 371 | return err; |
53c06f4e AK |
372 | |
373 | error: | |
53c06f4e AK |
374 | if (fid) |
375 | p9_client_clunk(fid); | |
398c4f0e AK |
376 | err_clunk_old_fid: |
377 | if (ofid) | |
378 | p9_client_clunk(ofid); | |
e43ae79c | 379 | goto out; |
53c06f4e AK |
380 | } |
381 | ||
382 | /** | |
383 | * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory | |
384 | * @dir: inode that is being unlinked | |
385 | * @dentry: dentry that is being unlinked | |
386 | * @mode: mode for new directory | |
387 | * | |
388 | */ | |
389 | ||
390 | static int v9fs_vfs_mkdir_dotl(struct inode *dir, | |
18bb1db3 | 391 | struct dentry *dentry, umode_t omode) |
53c06f4e AK |
392 | { |
393 | int err; | |
394 | struct v9fs_session_info *v9ses; | |
395 | struct p9_fid *fid = NULL, *dfid = NULL; | |
d4ef4e35 | 396 | kgid_t gid; |
53c06f4e | 397 | char *name; |
d3fb6120 | 398 | umode_t mode; |
53c06f4e AK |
399 | struct inode *inode; |
400 | struct p9_qid qid; | |
401 | struct dentry *dir_dentry; | |
402 | struct posix_acl *dacl = NULL, *pacl = NULL; | |
403 | ||
5d385153 | 404 | p9_debug(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name); |
53c06f4e AK |
405 | err = 0; |
406 | v9ses = v9fs_inode2v9ses(dir); | |
407 | ||
408 | omode |= S_IFDIR; | |
409 | if (dir->i_mode & S_ISGID) | |
410 | omode |= S_ISGID; | |
411 | ||
af569596 | 412 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
413 | dfid = v9fs_fid_lookup(dir_dentry); |
414 | if (IS_ERR(dfid)) { | |
415 | err = PTR_ERR(dfid); | |
5d385153 | 416 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
417 | dfid = NULL; |
418 | goto error; | |
419 | } | |
420 | ||
421 | gid = v9fs_get_fsgid_for_create(dir); | |
422 | mode = omode; | |
423 | /* Update mode based on ACL value */ | |
424 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
425 | if (err) { | |
5d385153 JP |
426 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mkdir %d\n", |
427 | err); | |
53c06f4e AK |
428 | goto error; |
429 | } | |
430 | name = (char *) dentry->d_name.name; | |
431 | err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid); | |
432 | if (err < 0) | |
433 | goto error; | |
434 | ||
3592ac44 AV |
435 | fid = p9_client_walk(dfid, 1, &name, 1); |
436 | if (IS_ERR(fid)) { | |
437 | err = PTR_ERR(fid); | |
438 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", | |
439 | err); | |
440 | fid = NULL; | |
441 | goto error; | |
442 | } | |
443 | ||
53c06f4e AK |
444 | /* instantiate inode and assign the unopened fid to the dentry */ |
445 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { | |
ed80fcfa | 446 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
447 | if (IS_ERR(inode)) { |
448 | err = PTR_ERR(inode); | |
5d385153 JP |
449 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
450 | err); | |
53c06f4e AK |
451 | goto error; |
452 | } | |
2ea03e1d | 453 | v9fs_fid_add(dentry, fid); |
3592ac44 | 454 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
5441ae5e | 455 | d_instantiate(dentry, inode); |
53c06f4e | 456 | fid = NULL; |
2ea03e1d | 457 | err = 0; |
53c06f4e AK |
458 | } else { |
459 | /* | |
460 | * Not in cached mode. No need to populate | |
461 | * inode with stat. We need to get an inode | |
462 | * so that we can set the acl with dentry | |
463 | */ | |
45089142 | 464 | inode = v9fs_get_inode(dir->i_sb, mode, 0); |
53c06f4e AK |
465 | if (IS_ERR(inode)) { |
466 | err = PTR_ERR(inode); | |
467 | goto error; | |
468 | } | |
3592ac44 | 469 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
53c06f4e AK |
470 | d_instantiate(dentry, inode); |
471 | } | |
b271ec47 | 472 | inc_nlink(dir); |
d28c61f0 | 473 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
474 | error: |
475 | if (fid) | |
476 | p9_client_clunk(fid); | |
5fa6300a | 477 | v9fs_put_acl(dacl, pacl); |
53c06f4e AK |
478 | return err; |
479 | } | |
480 | ||
481 | static int | |
482 | v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry, | |
483 | struct kstat *stat) | |
484 | { | |
485 | int err; | |
486 | struct v9fs_session_info *v9ses; | |
487 | struct p9_fid *fid; | |
488 | struct p9_stat_dotl *st; | |
489 | ||
5d385153 | 490 | p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry); |
53c06f4e | 491 | err = -EPERM; |
42869c8a | 492 | v9ses = v9fs_dentry2v9ses(dentry); |
a1211908 AK |
493 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { |
494 | generic_fillattr(dentry->d_inode, stat); | |
495 | return 0; | |
496 | } | |
53c06f4e AK |
497 | fid = v9fs_fid_lookup(dentry); |
498 | if (IS_ERR(fid)) | |
499 | return PTR_ERR(fid); | |
500 | ||
501 | /* Ask for all the fields in stat structure. Server will return | |
502 | * whatever it supports | |
503 | */ | |
504 | ||
505 | st = p9_client_getattr_dotl(fid, P9_STATS_ALL); | |
506 | if (IS_ERR(st)) | |
507 | return PTR_ERR(st); | |
508 | ||
509 | v9fs_stat2inode_dotl(st, dentry->d_inode); | |
510 | generic_fillattr(dentry->d_inode, stat); | |
511 | /* Change block size to what the server returned */ | |
512 | stat->blksize = st->st_blksize; | |
513 | ||
514 | kfree(st); | |
515 | return 0; | |
516 | } | |
517 | ||
f766619d AK |
518 | /* |
519 | * Attribute flags. | |
520 | */ | |
521 | #define P9_ATTR_MODE (1 << 0) | |
522 | #define P9_ATTR_UID (1 << 1) | |
523 | #define P9_ATTR_GID (1 << 2) | |
524 | #define P9_ATTR_SIZE (1 << 3) | |
525 | #define P9_ATTR_ATIME (1 << 4) | |
526 | #define P9_ATTR_MTIME (1 << 5) | |
527 | #define P9_ATTR_CTIME (1 << 6) | |
528 | #define P9_ATTR_ATIME_SET (1 << 7) | |
529 | #define P9_ATTR_MTIME_SET (1 << 8) | |
530 | ||
531 | struct dotl_iattr_map { | |
532 | int iattr_valid; | |
533 | int p9_iattr_valid; | |
534 | }; | |
535 | ||
536 | static int v9fs_mapped_iattr_valid(int iattr_valid) | |
537 | { | |
538 | int i; | |
539 | int p9_iattr_valid = 0; | |
540 | struct dotl_iattr_map dotl_iattr_map[] = { | |
541 | { ATTR_MODE, P9_ATTR_MODE }, | |
542 | { ATTR_UID, P9_ATTR_UID }, | |
543 | { ATTR_GID, P9_ATTR_GID }, | |
544 | { ATTR_SIZE, P9_ATTR_SIZE }, | |
545 | { ATTR_ATIME, P9_ATTR_ATIME }, | |
546 | { ATTR_MTIME, P9_ATTR_MTIME }, | |
547 | { ATTR_CTIME, P9_ATTR_CTIME }, | |
548 | { ATTR_ATIME_SET, P9_ATTR_ATIME_SET }, | |
549 | { ATTR_MTIME_SET, P9_ATTR_MTIME_SET }, | |
550 | }; | |
551 | for (i = 0; i < ARRAY_SIZE(dotl_iattr_map); i++) { | |
552 | if (iattr_valid & dotl_iattr_map[i].iattr_valid) | |
553 | p9_iattr_valid |= dotl_iattr_map[i].p9_iattr_valid; | |
554 | } | |
555 | return p9_iattr_valid; | |
556 | } | |
557 | ||
53c06f4e AK |
558 | /** |
559 | * v9fs_vfs_setattr_dotl - set file metadata | |
560 | * @dentry: file whose metadata to set | |
561 | * @iattr: metadata assignment structure | |
562 | * | |
563 | */ | |
564 | ||
565 | int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr) | |
566 | { | |
567 | int retval; | |
568 | struct v9fs_session_info *v9ses; | |
569 | struct p9_fid *fid; | |
570 | struct p9_iattr_dotl p9attr; | |
be308f07 | 571 | struct inode *inode = dentry->d_inode; |
53c06f4e | 572 | |
5d385153 | 573 | p9_debug(P9_DEBUG_VFS, "\n"); |
53c06f4e | 574 | |
be308f07 | 575 | retval = inode_change_ok(inode, iattr); |
53c06f4e AK |
576 | if (retval) |
577 | return retval; | |
578 | ||
f766619d | 579 | p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid); |
53c06f4e AK |
580 | p9attr.mode = iattr->ia_mode; |
581 | p9attr.uid = iattr->ia_uid; | |
582 | p9attr.gid = iattr->ia_gid; | |
583 | p9attr.size = iattr->ia_size; | |
584 | p9attr.atime_sec = iattr->ia_atime.tv_sec; | |
585 | p9attr.atime_nsec = iattr->ia_atime.tv_nsec; | |
586 | p9attr.mtime_sec = iattr->ia_mtime.tv_sec; | |
587 | p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec; | |
588 | ||
589 | retval = -EPERM; | |
42869c8a | 590 | v9ses = v9fs_dentry2v9ses(dentry); |
53c06f4e AK |
591 | fid = v9fs_fid_lookup(dentry); |
592 | if (IS_ERR(fid)) | |
593 | return PTR_ERR(fid); | |
594 | ||
3dc5436a | 595 | /* Write all dirty data */ |
be308f07 AV |
596 | if (S_ISREG(inode->i_mode)) |
597 | filemap_write_and_wait(inode->i_mapping); | |
3dc5436a | 598 | |
f10fc50f AK |
599 | retval = p9_client_setattr(fid, &p9attr); |
600 | if (retval < 0) | |
601 | return retval; | |
53c06f4e | 602 | |
059c138b | 603 | if ((iattr->ia_valid & ATTR_SIZE) && |
be308f07 AV |
604 | iattr->ia_size != i_size_read(inode)) |
605 | truncate_setsize(inode, iattr->ia_size); | |
059c138b | 606 | |
be308f07 AV |
607 | v9fs_invalidate_inode_attr(inode); |
608 | setattr_copy(inode, iattr); | |
609 | mark_inode_dirty(inode); | |
53c06f4e AK |
610 | if (iattr->ia_valid & ATTR_MODE) { |
611 | /* We also want to update ACL when we update mode bits */ | |
be308f07 | 612 | retval = v9fs_acl_chmod(inode, fid); |
53c06f4e AK |
613 | if (retval < 0) |
614 | return retval; | |
615 | } | |
616 | return 0; | |
617 | } | |
618 | ||
619 | /** | |
620 | * v9fs_stat2inode_dotl - populate an inode structure with stat info | |
621 | * @stat: stat structure | |
622 | * @inode: inode to populate | |
623 | * @sb: superblock of filesystem | |
624 | * | |
625 | */ | |
626 | ||
627 | void | |
628 | v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode) | |
629 | { | |
3eda0de6 | 630 | umode_t mode; |
b3cbea03 | 631 | struct v9fs_inode *v9inode = V9FS_I(inode); |
53c06f4e AK |
632 | |
633 | if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) { | |
634 | inode->i_atime.tv_sec = stat->st_atime_sec; | |
635 | inode->i_atime.tv_nsec = stat->st_atime_nsec; | |
636 | inode->i_mtime.tv_sec = stat->st_mtime_sec; | |
637 | inode->i_mtime.tv_nsec = stat->st_mtime_nsec; | |
638 | inode->i_ctime.tv_sec = stat->st_ctime_sec; | |
639 | inode->i_ctime.tv_nsec = stat->st_ctime_nsec; | |
640 | inode->i_uid = stat->st_uid; | |
641 | inode->i_gid = stat->st_gid; | |
bfe86848 | 642 | set_nlink(inode, stat->st_nlink); |
53c06f4e | 643 | |
45089142 AK |
644 | mode = stat->st_mode & S_IALLUGO; |
645 | mode |= inode->i_mode & ~S_IALLUGO; | |
646 | inode->i_mode = mode; | |
53c06f4e AK |
647 | |
648 | i_size_write(inode, stat->st_size); | |
649 | inode->i_blocks = stat->st_blocks; | |
650 | } else { | |
651 | if (stat->st_result_mask & P9_STATS_ATIME) { | |
652 | inode->i_atime.tv_sec = stat->st_atime_sec; | |
653 | inode->i_atime.tv_nsec = stat->st_atime_nsec; | |
654 | } | |
655 | if (stat->st_result_mask & P9_STATS_MTIME) { | |
656 | inode->i_mtime.tv_sec = stat->st_mtime_sec; | |
657 | inode->i_mtime.tv_nsec = stat->st_mtime_nsec; | |
658 | } | |
659 | if (stat->st_result_mask & P9_STATS_CTIME) { | |
660 | inode->i_ctime.tv_sec = stat->st_ctime_sec; | |
661 | inode->i_ctime.tv_nsec = stat->st_ctime_nsec; | |
662 | } | |
663 | if (stat->st_result_mask & P9_STATS_UID) | |
664 | inode->i_uid = stat->st_uid; | |
665 | if (stat->st_result_mask & P9_STATS_GID) | |
666 | inode->i_gid = stat->st_gid; | |
667 | if (stat->st_result_mask & P9_STATS_NLINK) | |
bfe86848 | 668 | set_nlink(inode, stat->st_nlink); |
53c06f4e AK |
669 | if (stat->st_result_mask & P9_STATS_MODE) { |
670 | inode->i_mode = stat->st_mode; | |
671 | if ((S_ISBLK(inode->i_mode)) || | |
672 | (S_ISCHR(inode->i_mode))) | |
673 | init_special_inode(inode, inode->i_mode, | |
674 | inode->i_rdev); | |
675 | } | |
676 | if (stat->st_result_mask & P9_STATS_RDEV) | |
677 | inode->i_rdev = new_decode_dev(stat->st_rdev); | |
678 | if (stat->st_result_mask & P9_STATS_SIZE) | |
679 | i_size_write(inode, stat->st_size); | |
680 | if (stat->st_result_mask & P9_STATS_BLOCKS) | |
681 | inode->i_blocks = stat->st_blocks; | |
682 | } | |
683 | if (stat->st_result_mask & P9_STATS_GEN) | |
fd2421f5 | 684 | inode->i_generation = stat->st_gen; |
53c06f4e AK |
685 | |
686 | /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION | |
687 | * because the inode structure does not have fields for them. | |
688 | */ | |
b3cbea03 | 689 | v9inode->cache_validity &= ~V9FS_INO_INVALID_ATTR; |
53c06f4e AK |
690 | } |
691 | ||
692 | static int | |
693 | v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry, | |
694 | const char *symname) | |
695 | { | |
53c06f4e | 696 | int err; |
d4ef4e35 | 697 | kgid_t gid; |
d28c61f0 AK |
698 | char *name; |
699 | struct p9_qid qid; | |
700 | struct inode *inode; | |
701 | struct p9_fid *dfid; | |
702 | struct p9_fid *fid = NULL; | |
703 | struct v9fs_session_info *v9ses; | |
53c06f4e AK |
704 | |
705 | name = (char *) dentry->d_name.name; | |
5d385153 | 706 | p9_debug(P9_DEBUG_VFS, "%lu,%s,%s\n", dir->i_ino, name, symname); |
53c06f4e AK |
707 | v9ses = v9fs_inode2v9ses(dir); |
708 | ||
709 | dfid = v9fs_fid_lookup(dentry->d_parent); | |
710 | if (IS_ERR(dfid)) { | |
711 | err = PTR_ERR(dfid); | |
5d385153 | 712 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
713 | return err; |
714 | } | |
715 | ||
716 | gid = v9fs_get_fsgid_for_create(dir); | |
717 | ||
718 | /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */ | |
719 | err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid); | |
720 | ||
721 | if (err < 0) { | |
5d385153 | 722 | p9_debug(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err); |
53c06f4e AK |
723 | goto error; |
724 | } | |
725 | ||
d28c61f0 | 726 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
727 | if (v9ses->cache) { |
728 | /* Now walk from the parent so we can get an unopened fid. */ | |
729 | fid = p9_client_walk(dfid, 1, &name, 1); | |
730 | if (IS_ERR(fid)) { | |
731 | err = PTR_ERR(fid); | |
5d385153 JP |
732 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", |
733 | err); | |
53c06f4e AK |
734 | fid = NULL; |
735 | goto error; | |
736 | } | |
737 | ||
738 | /* instantiate inode and assign the unopened fid to dentry */ | |
ed80fcfa | 739 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
740 | if (IS_ERR(inode)) { |
741 | err = PTR_ERR(inode); | |
5d385153 JP |
742 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
743 | err); | |
53c06f4e AK |
744 | goto error; |
745 | } | |
2ea03e1d | 746 | v9fs_fid_add(dentry, fid); |
5441ae5e | 747 | d_instantiate(dentry, inode); |
53c06f4e | 748 | fid = NULL; |
2ea03e1d | 749 | err = 0; |
53c06f4e AK |
750 | } else { |
751 | /* Not in cached mode. No need to populate inode with stat */ | |
45089142 | 752 | inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0); |
53c06f4e AK |
753 | if (IS_ERR(inode)) { |
754 | err = PTR_ERR(inode); | |
755 | goto error; | |
756 | } | |
53c06f4e AK |
757 | d_instantiate(dentry, inode); |
758 | } | |
759 | ||
760 | error: | |
761 | if (fid) | |
762 | p9_client_clunk(fid); | |
763 | ||
764 | return err; | |
765 | } | |
766 | ||
767 | /** | |
768 | * v9fs_vfs_link_dotl - create a hardlink for dotl | |
769 | * @old_dentry: dentry for file to link to | |
770 | * @dir: inode destination for new link | |
771 | * @dentry: dentry for link | |
772 | * | |
773 | */ | |
774 | ||
775 | static int | |
776 | v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir, | |
777 | struct dentry *dentry) | |
778 | { | |
779 | int err; | |
53c06f4e | 780 | char *name; |
53c06f4e | 781 | struct dentry *dir_dentry; |
d28c61f0 AK |
782 | struct p9_fid *dfid, *oldfid; |
783 | struct v9fs_session_info *v9ses; | |
53c06f4e | 784 | |
5d385153 JP |
785 | p9_debug(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n", |
786 | dir->i_ino, old_dentry->d_name.name, dentry->d_name.name); | |
53c06f4e AK |
787 | |
788 | v9ses = v9fs_inode2v9ses(dir); | |
af569596 | 789 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
790 | dfid = v9fs_fid_lookup(dir_dentry); |
791 | if (IS_ERR(dfid)) | |
792 | return PTR_ERR(dfid); | |
793 | ||
794 | oldfid = v9fs_fid_lookup(old_dentry); | |
795 | if (IS_ERR(oldfid)) | |
796 | return PTR_ERR(oldfid); | |
797 | ||
798 | name = (char *) dentry->d_name.name; | |
799 | ||
800 | err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name); | |
801 | ||
802 | if (err < 0) { | |
5d385153 | 803 | p9_debug(P9_DEBUG_VFS, "p9_client_link failed %d\n", err); |
53c06f4e AK |
804 | return err; |
805 | } | |
806 | ||
d28c61f0 | 807 | v9fs_invalidate_inode_attr(dir); |
53c06f4e AK |
808 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { |
809 | /* Get the latest stat info from server. */ | |
810 | struct p9_fid *fid; | |
53c06f4e AK |
811 | fid = v9fs_fid_lookup(old_dentry); |
812 | if (IS_ERR(fid)) | |
813 | return PTR_ERR(fid); | |
814 | ||
c06c066a | 815 | v9fs_refresh_inode_dotl(fid, old_dentry->d_inode); |
53c06f4e | 816 | } |
20656a49 | 817 | ihold(old_dentry->d_inode); |
53c06f4e AK |
818 | d_instantiate(dentry, old_dentry->d_inode); |
819 | ||
820 | return err; | |
821 | } | |
822 | ||
823 | /** | |
824 | * v9fs_vfs_mknod_dotl - create a special file | |
825 | * @dir: inode destination for new link | |
826 | * @dentry: dentry for file | |
827 | * @mode: mode for creation | |
828 | * @rdev: device associated with special file | |
829 | * | |
830 | */ | |
831 | static int | |
1a67aafb | 832 | v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode, |
53c06f4e AK |
833 | dev_t rdev) |
834 | { | |
835 | int err; | |
d4ef4e35 | 836 | kgid_t gid; |
53c06f4e | 837 | char *name; |
d3fb6120 | 838 | umode_t mode; |
53c06f4e AK |
839 | struct v9fs_session_info *v9ses; |
840 | struct p9_fid *fid = NULL, *dfid = NULL; | |
841 | struct inode *inode; | |
53c06f4e AK |
842 | struct p9_qid qid; |
843 | struct dentry *dir_dentry; | |
844 | struct posix_acl *dacl = NULL, *pacl = NULL; | |
845 | ||
609eac1c | 846 | p9_debug(P9_DEBUG_VFS, " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", |
5d385153 JP |
847 | dir->i_ino, dentry->d_name.name, omode, |
848 | MAJOR(rdev), MINOR(rdev)); | |
53c06f4e AK |
849 | |
850 | if (!new_valid_dev(rdev)) | |
851 | return -EINVAL; | |
852 | ||
853 | v9ses = v9fs_inode2v9ses(dir); | |
af569596 | 854 | dir_dentry = dentry->d_parent; |
53c06f4e AK |
855 | dfid = v9fs_fid_lookup(dir_dentry); |
856 | if (IS_ERR(dfid)) { | |
857 | err = PTR_ERR(dfid); | |
5d385153 | 858 | p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err); |
53c06f4e AK |
859 | dfid = NULL; |
860 | goto error; | |
861 | } | |
862 | ||
863 | gid = v9fs_get_fsgid_for_create(dir); | |
864 | mode = omode; | |
865 | /* Update mode based on ACL value */ | |
866 | err = v9fs_acl_mode(dir, &mode, &dacl, &pacl); | |
867 | if (err) { | |
5d385153 JP |
868 | p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mknod %d\n", |
869 | err); | |
53c06f4e AK |
870 | goto error; |
871 | } | |
872 | name = (char *) dentry->d_name.name; | |
873 | ||
874 | err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid); | |
875 | if (err < 0) | |
876 | goto error; | |
877 | ||
d28c61f0 | 878 | v9fs_invalidate_inode_attr(dir); |
3592ac44 AV |
879 | fid = p9_client_walk(dfid, 1, &name, 1); |
880 | if (IS_ERR(fid)) { | |
881 | err = PTR_ERR(fid); | |
882 | p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", | |
883 | err); | |
884 | fid = NULL; | |
885 | goto error; | |
886 | } | |
887 | ||
53c06f4e AK |
888 | /* instantiate inode and assign the unopened fid to the dentry */ |
889 | if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) { | |
ed80fcfa | 890 | inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb); |
53c06f4e AK |
891 | if (IS_ERR(inode)) { |
892 | err = PTR_ERR(inode); | |
5d385153 JP |
893 | p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", |
894 | err); | |
53c06f4e AK |
895 | goto error; |
896 | } | |
3592ac44 | 897 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
2ea03e1d | 898 | v9fs_fid_add(dentry, fid); |
5441ae5e | 899 | d_instantiate(dentry, inode); |
53c06f4e | 900 | fid = NULL; |
2ea03e1d | 901 | err = 0; |
53c06f4e AK |
902 | } else { |
903 | /* | |
904 | * Not in cached mode. No need to populate inode with stat. | |
905 | * socket syscall returns a fd, so we need instantiate | |
906 | */ | |
45089142 | 907 | inode = v9fs_get_inode(dir->i_sb, mode, rdev); |
53c06f4e AK |
908 | if (IS_ERR(inode)) { |
909 | err = PTR_ERR(inode); | |
910 | goto error; | |
911 | } | |
3592ac44 | 912 | v9fs_set_create_acl(inode, fid, dacl, pacl); |
53c06f4e AK |
913 | d_instantiate(dentry, inode); |
914 | } | |
53c06f4e AK |
915 | error: |
916 | if (fid) | |
917 | p9_client_clunk(fid); | |
5fa6300a | 918 | v9fs_put_acl(dacl, pacl); |
53c06f4e AK |
919 | return err; |
920 | } | |
921 | ||
53c06f4e AK |
922 | /** |
923 | * v9fs_vfs_follow_link_dotl - follow a symlink path | |
924 | * @dentry: dentry for symlink | |
925 | * @nd: nameidata | |
926 | * | |
927 | */ | |
928 | ||
929 | static void * | |
930 | v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd) | |
931 | { | |
31b6ceac MK |
932 | int retval; |
933 | struct p9_fid *fid; | |
53c06f4e | 934 | char *link = __getname(); |
31b6ceac | 935 | char *target; |
53c06f4e | 936 | |
5d385153 | 937 | p9_debug(P9_DEBUG_VFS, "%s\n", dentry->d_name.name); |
53c06f4e | 938 | |
31b6ceac | 939 | if (!link) { |
53c06f4e | 940 | link = ERR_PTR(-ENOMEM); |
31b6ceac | 941 | goto ndset; |
53c06f4e | 942 | } |
31b6ceac MK |
943 | fid = v9fs_fid_lookup(dentry); |
944 | if (IS_ERR(fid)) { | |
945 | __putname(link); | |
936bb2d7 | 946 | link = ERR_CAST(fid); |
31b6ceac MK |
947 | goto ndset; |
948 | } | |
949 | retval = p9_client_readlink(fid, &target); | |
950 | if (!retval) { | |
951 | strcpy(link, target); | |
952 | kfree(target); | |
953 | goto ndset; | |
954 | } | |
955 | __putname(link); | |
956 | link = ERR_PTR(retval); | |
957 | ndset: | |
53c06f4e | 958 | nd_set_link(nd, link); |
53c06f4e AK |
959 | return NULL; |
960 | } | |
961 | ||
b3cbea03 AK |
962 | int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode) |
963 | { | |
964 | loff_t i_size; | |
965 | struct p9_stat_dotl *st; | |
966 | struct v9fs_session_info *v9ses; | |
967 | ||
968 | v9ses = v9fs_inode2v9ses(inode); | |
969 | st = p9_client_getattr_dotl(fid, P9_STATS_ALL); | |
970 | if (IS_ERR(st)) | |
971 | return PTR_ERR(st); | |
45089142 AK |
972 | /* |
973 | * Don't update inode if the file type is different | |
974 | */ | |
975 | if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT)) | |
976 | goto out; | |
b3cbea03 AK |
977 | |
978 | spin_lock(&inode->i_lock); | |
979 | /* | |
980 | * We don't want to refresh inode->i_size, | |
981 | * because we may have cached data | |
982 | */ | |
983 | i_size = inode->i_size; | |
984 | v9fs_stat2inode_dotl(st, inode); | |
985 | if (v9ses->cache) | |
986 | inode->i_size = i_size; | |
987 | spin_unlock(&inode->i_lock); | |
45089142 | 988 | out: |
b3cbea03 AK |
989 | kfree(st); |
990 | return 0; | |
991 | } | |
992 | ||
53c06f4e AK |
993 | const struct inode_operations v9fs_dir_inode_operations_dotl = { |
994 | .create = v9fs_vfs_create_dotl, | |
e43ae79c | 995 | .atomic_open = v9fs_vfs_atomic_open_dotl, |
53c06f4e AK |
996 | .lookup = v9fs_vfs_lookup, |
997 | .link = v9fs_vfs_link_dotl, | |
998 | .symlink = v9fs_vfs_symlink_dotl, | |
999 | .unlink = v9fs_vfs_unlink, | |
1000 | .mkdir = v9fs_vfs_mkdir_dotl, | |
1001 | .rmdir = v9fs_vfs_rmdir, | |
1002 | .mknod = v9fs_vfs_mknod_dotl, | |
1003 | .rename = v9fs_vfs_rename, | |
1004 | .getattr = v9fs_vfs_getattr_dotl, | |
1005 | .setattr = v9fs_vfs_setattr_dotl, | |
1006 | .setxattr = generic_setxattr, | |
1007 | .getxattr = generic_getxattr, | |
1008 | .removexattr = generic_removexattr, | |
1009 | .listxattr = v9fs_listxattr, | |
4e34e719 | 1010 | .get_acl = v9fs_iop_get_acl, |
53c06f4e AK |
1011 | }; |
1012 | ||
1013 | const struct inode_operations v9fs_file_inode_operations_dotl = { | |
1014 | .getattr = v9fs_vfs_getattr_dotl, | |
1015 | .setattr = v9fs_vfs_setattr_dotl, | |
1016 | .setxattr = generic_setxattr, | |
1017 | .getxattr = generic_getxattr, | |
1018 | .removexattr = generic_removexattr, | |
1019 | .listxattr = v9fs_listxattr, | |
4e34e719 | 1020 | .get_acl = v9fs_iop_get_acl, |
53c06f4e AK |
1021 | }; |
1022 | ||
1023 | const struct inode_operations v9fs_symlink_inode_operations_dotl = { | |
31b6ceac | 1024 | .readlink = generic_readlink, |
53c06f4e AK |
1025 | .follow_link = v9fs_vfs_follow_link_dotl, |
1026 | .put_link = v9fs_vfs_put_link, | |
1027 | .getattr = v9fs_vfs_getattr_dotl, | |
1028 | .setattr = v9fs_vfs_setattr_dotl, | |
1029 | .setxattr = generic_setxattr, | |
1030 | .getxattr = generic_getxattr, | |
1031 | .removexattr = generic_removexattr, | |
1032 | .listxattr = v9fs_listxattr, | |
1033 | }; |