Commit | Line | Data |
---|---|---|
b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
4 | * |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
7 | * of the GNU General Public License v.2. | |
8 | */ | |
9 | ||
10 | #include <linux/sched.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/spinlock.h> | |
13 | #include <linux/completion.h> | |
14 | #include <linux/buffer_head.h> | |
15 | #include <linux/namei.h> | |
16 | #include <linux/utsname.h> | |
17 | #include <linux/mm.h> | |
18 | #include <linux/xattr.h> | |
19 | #include <linux/posix_acl.h> | |
5c676f6d | 20 | #include <linux/gfs2_ondisk.h> |
71b86f56 | 21 | #include <linux/crc32.h> |
b3b94faa DT |
22 | #include <asm/uaccess.h> |
23 | ||
24 | #include "gfs2.h" | |
5c676f6d SW |
25 | #include "lm_interface.h" |
26 | #include "incore.h" | |
b3b94faa DT |
27 | #include "acl.h" |
28 | #include "bmap.h" | |
29 | #include "dir.h" | |
30 | #include "eaops.h" | |
31 | #include "eattr.h" | |
32 | #include "glock.h" | |
33 | #include "inode.h" | |
34 | #include "meta_io.h" | |
35 | #include "ops_dentry.h" | |
36 | #include "ops_inode.h" | |
37 | #include "page.h" | |
38 | #include "quota.h" | |
39 | #include "rgrp.h" | |
40 | #include "trans.h" | |
41 | #include "unlinked.h" | |
5c676f6d | 42 | #include "util.h" |
b3b94faa DT |
43 | |
44 | /** | |
45 | * gfs2_create - Create a file | |
46 | * @dir: The directory in which to create the file | |
47 | * @dentry: The dentry of the new file | |
48 | * @mode: The mode of the new file | |
49 | * | |
50 | * Returns: errno | |
51 | */ | |
52 | ||
53 | static int gfs2_create(struct inode *dir, struct dentry *dentry, | |
54 | int mode, struct nameidata *nd) | |
55 | { | |
5c676f6d | 56 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa DT |
57 | struct gfs2_sbd *sdp = dip->i_sbd; |
58 | struct gfs2_holder ghs[2]; | |
59 | struct inode *inode; | |
60 | int new = 1; | |
b3b94faa | 61 | |
b3b94faa DT |
62 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); |
63 | ||
64 | for (;;) { | |
7359a19c SW |
65 | inode = gfs2_createi(ghs, &dentry->d_name, S_IFREG | mode); |
66 | if (!IS_ERR(inode)) { | |
b3b94faa DT |
67 | gfs2_trans_end(sdp); |
68 | if (dip->i_alloc.al_rgd) | |
69 | gfs2_inplace_release(dip); | |
70 | gfs2_quota_unlock(dip); | |
71 | gfs2_alloc_put(dip); | |
72 | gfs2_glock_dq_uninit_m(2, ghs); | |
73 | break; | |
7359a19c | 74 | } else if (PTR_ERR(inode) != -EEXIST || |
b3b94faa DT |
75 | (nd->intent.open.flags & O_EXCL)) { |
76 | gfs2_holder_uninit(ghs); | |
7359a19c | 77 | return PTR_ERR(inode); |
b3b94faa DT |
78 | } |
79 | ||
c752666c SW |
80 | inode = gfs2_lookupi(dir, &dentry->d_name, 0, nd); |
81 | if (inode) { | |
82 | if (!IS_ERR(inode)) { | |
83 | new = 0; | |
84 | gfs2_holder_uninit(ghs); | |
85 | break; | |
86 | } else { | |
87 | gfs2_holder_uninit(ghs); | |
88 | return PTR_ERR(inode); | |
89 | } | |
b3b94faa DT |
90 | } |
91 | } | |
92 | ||
b3b94faa DT |
93 | d_instantiate(dentry, inode); |
94 | if (new) | |
95 | mark_inode_dirty(inode); | |
96 | ||
97 | return 0; | |
98 | } | |
99 | ||
100 | /** | |
101 | * gfs2_lookup - Look up a filename in a directory and return its inode | |
102 | * @dir: The directory inode | |
103 | * @dentry: The dentry of the new inode | |
104 | * @nd: passed from Linux VFS, ignored by us | |
105 | * | |
106 | * Called by the VFS layer. Lock dir and call gfs2_lookupi() | |
107 | * | |
108 | * Returns: errno | |
109 | */ | |
110 | ||
111 | static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry, | |
112 | struct nameidata *nd) | |
113 | { | |
b3b94faa | 114 | struct inode *inode = NULL; |
b3b94faa | 115 | |
c752666c | 116 | dentry->d_op = &gfs2_dops; |
b3b94faa | 117 | |
c752666c SW |
118 | inode = gfs2_lookupi(dir, &dentry->d_name, 0, nd); |
119 | if (inode && IS_ERR(inode)) | |
120 | return ERR_PTR(PTR_ERR(inode)); | |
b3b94faa DT |
121 | |
122 | if (inode) | |
123 | return d_splice_alias(inode, dentry); | |
124 | d_add(dentry, inode); | |
125 | ||
126 | return NULL; | |
127 | } | |
128 | ||
129 | /** | |
130 | * gfs2_link - Link to a file | |
131 | * @old_dentry: The inode to link | |
132 | * @dir: Add link to this directory | |
133 | * @dentry: The name of the link | |
134 | * | |
135 | * Link the inode in "old_dentry" into the directory "dir" with the | |
136 | * name in "dentry". | |
137 | * | |
138 | * Returns: errno | |
139 | */ | |
140 | ||
141 | static int gfs2_link(struct dentry *old_dentry, struct inode *dir, | |
142 | struct dentry *dentry) | |
143 | { | |
5c676f6d | 144 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa DT |
145 | struct gfs2_sbd *sdp = dip->i_sbd; |
146 | struct inode *inode = old_dentry->d_inode; | |
5c676f6d | 147 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
148 | struct gfs2_holder ghs[2]; |
149 | int alloc_required; | |
150 | int error; | |
151 | ||
b3b94faa DT |
152 | if (S_ISDIR(ip->i_di.di_mode)) |
153 | return -EPERM; | |
154 | ||
155 | gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
156 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
157 | ||
158 | error = gfs2_glock_nq_m(2, ghs); | |
159 | if (error) | |
160 | goto out; | |
161 | ||
162 | error = gfs2_repermission(dir, MAY_WRITE | MAY_EXEC, NULL); | |
163 | if (error) | |
164 | goto out_gunlock; | |
165 | ||
c752666c | 166 | error = gfs2_dir_search(dir, &dentry->d_name, NULL, NULL); |
b3b94faa DT |
167 | switch (error) { |
168 | case -ENOENT: | |
169 | break; | |
170 | case 0: | |
171 | error = -EEXIST; | |
172 | default: | |
173 | goto out_gunlock; | |
174 | } | |
175 | ||
176 | error = -EINVAL; | |
177 | if (!dip->i_di.di_nlink) | |
178 | goto out_gunlock; | |
179 | error = -EFBIG; | |
180 | if (dip->i_di.di_entries == (uint32_t)-1) | |
181 | goto out_gunlock; | |
182 | error = -EPERM; | |
183 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) | |
184 | goto out_gunlock; | |
185 | error = -EINVAL; | |
186 | if (!ip->i_di.di_nlink) | |
187 | goto out_gunlock; | |
188 | error = -EMLINK; | |
189 | if (ip->i_di.di_nlink == (uint32_t)-1) | |
190 | goto out_gunlock; | |
191 | ||
c752666c SW |
192 | alloc_required = error = gfs2_diradd_alloc_required(dir, &dentry->d_name); |
193 | if (error < 0) | |
b3b94faa | 194 | goto out_gunlock; |
c752666c | 195 | error = 0; |
b3b94faa DT |
196 | |
197 | if (alloc_required) { | |
198 | struct gfs2_alloc *al = gfs2_alloc_get(dip); | |
199 | ||
200 | error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
201 | if (error) | |
202 | goto out_alloc; | |
203 | ||
204 | error = gfs2_quota_check(dip, dip->i_di.di_uid, | |
205 | dip->i_di.di_gid); | |
206 | if (error) | |
207 | goto out_gunlock_q; | |
208 | ||
209 | al->al_requested = sdp->sd_max_dirres; | |
210 | ||
211 | error = gfs2_inplace_reserve(dip); | |
212 | if (error) | |
213 | goto out_gunlock_q; | |
214 | ||
1b50259b | 215 | error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + |
b3b94faa DT |
216 | al->al_rgd->rd_ri.ri_length + |
217 | 2 * RES_DINODE + RES_STATFS + | |
218 | RES_QUOTA, 0); | |
219 | if (error) | |
220 | goto out_ipres; | |
221 | } else { | |
222 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF, 0); | |
223 | if (error) | |
224 | goto out_ipres; | |
225 | } | |
226 | ||
c752666c | 227 | error = gfs2_dir_add(dir, &dentry->d_name, &ip->i_num, |
b3b94faa DT |
228 | IF2DT(ip->i_di.di_mode)); |
229 | if (error) | |
230 | goto out_end_trans; | |
231 | ||
232 | error = gfs2_change_nlink(ip, +1); | |
233 | ||
234 | out_end_trans: | |
235 | gfs2_trans_end(sdp); | |
236 | ||
237 | out_ipres: | |
238 | if (alloc_required) | |
239 | gfs2_inplace_release(dip); | |
240 | ||
241 | out_gunlock_q: | |
242 | if (alloc_required) | |
243 | gfs2_quota_unlock(dip); | |
244 | ||
245 | out_alloc: | |
246 | if (alloc_required) | |
247 | gfs2_alloc_put(dip); | |
248 | ||
249 | out_gunlock: | |
250 | gfs2_glock_dq_m(2, ghs); | |
251 | ||
252 | out: | |
253 | gfs2_holder_uninit(ghs); | |
254 | gfs2_holder_uninit(ghs + 1); | |
255 | ||
256 | if (!error) { | |
257 | atomic_inc(&inode->i_count); | |
258 | d_instantiate(dentry, inode); | |
259 | mark_inode_dirty(inode); | |
260 | } | |
261 | ||
262 | return error; | |
263 | } | |
264 | ||
265 | /** | |
266 | * gfs2_unlink - Unlink a file | |
267 | * @dir: The inode of the directory containing the file to unlink | |
268 | * @dentry: The file itself | |
269 | * | |
270 | * Unlink a file. Call gfs2_unlinki() | |
271 | * | |
272 | * Returns: errno | |
273 | */ | |
274 | ||
275 | static int gfs2_unlink(struct inode *dir, struct dentry *dentry) | |
276 | { | |
5c676f6d | 277 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa | 278 | struct gfs2_sbd *sdp = dip->i_sbd; |
5c676f6d | 279 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
280 | struct gfs2_unlinked *ul; |
281 | struct gfs2_holder ghs[2]; | |
282 | int error; | |
283 | ||
b3b94faa DT |
284 | error = gfs2_unlinked_get(sdp, &ul); |
285 | if (error) | |
286 | return error; | |
287 | ||
288 | gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
289 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
290 | ||
291 | error = gfs2_glock_nq_m(2, ghs); | |
292 | if (error) | |
293 | goto out; | |
294 | ||
295 | error = gfs2_unlink_ok(dip, &dentry->d_name, ip); | |
296 | if (error) | |
297 | goto out_gunlock; | |
298 | ||
299 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF + | |
300 | RES_UNLINKED, 0); | |
301 | if (error) | |
302 | goto out_gunlock; | |
303 | ||
1b50259b | 304 | error = gfs2_unlinki(dip, &dentry->d_name, ip, ul); |
b3b94faa DT |
305 | |
306 | gfs2_trans_end(sdp); | |
307 | ||
308 | out_gunlock: | |
309 | gfs2_glock_dq_m(2, ghs); | |
310 | ||
311 | out: | |
312 | gfs2_holder_uninit(ghs); | |
313 | gfs2_holder_uninit(ghs + 1); | |
314 | ||
315 | gfs2_unlinked_put(sdp, ul); | |
316 | ||
317 | return error; | |
318 | } | |
319 | ||
320 | /** | |
321 | * gfs2_symlink - Create a symlink | |
322 | * @dir: The directory to create the symlink in | |
323 | * @dentry: The dentry to put the symlink in | |
324 | * @symname: The thing which the link points to | |
325 | * | |
326 | * Returns: errno | |
327 | */ | |
328 | ||
329 | static int gfs2_symlink(struct inode *dir, struct dentry *dentry, | |
330 | const char *symname) | |
331 | { | |
5c676f6d | 332 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
333 | struct gfs2_sbd *sdp = dip->i_sbd; |
334 | struct gfs2_holder ghs[2]; | |
335 | struct inode *inode; | |
336 | struct buffer_head *dibh; | |
337 | int size; | |
338 | int error; | |
339 | ||
b3b94faa DT |
340 | /* Must be stuffed with a null terminator for gfs2_follow_link() */ |
341 | size = strlen(symname); | |
342 | if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode) - 1) | |
343 | return -ENAMETOOLONG; | |
344 | ||
345 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); | |
346 | ||
7359a19c SW |
347 | inode = gfs2_createi(ghs, &dentry->d_name, S_IFLNK | S_IRWXUGO); |
348 | if (IS_ERR(inode)) { | |
b3b94faa | 349 | gfs2_holder_uninit(ghs); |
7359a19c | 350 | return PTR_ERR(inode); |
b3b94faa DT |
351 | } |
352 | ||
5c676f6d | 353 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
354 | |
355 | ip->i_di.di_size = size; | |
356 | ||
357 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
358 | ||
359 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
360 | gfs2_dinode_out(&ip->i_di, dibh->b_data); | |
361 | memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname, | |
362 | size); | |
363 | brelse(dibh); | |
364 | } | |
365 | ||
366 | gfs2_trans_end(sdp); | |
367 | if (dip->i_alloc.al_rgd) | |
368 | gfs2_inplace_release(dip); | |
369 | gfs2_quota_unlock(dip); | |
370 | gfs2_alloc_put(dip); | |
371 | ||
372 | gfs2_glock_dq_uninit_m(2, ghs); | |
373 | ||
b3b94faa DT |
374 | d_instantiate(dentry, inode); |
375 | mark_inode_dirty(inode); | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | /** | |
381 | * gfs2_mkdir - Make a directory | |
382 | * @dir: The parent directory of the new one | |
383 | * @dentry: The dentry of the new directory | |
384 | * @mode: The mode of the new directory | |
385 | * | |
386 | * Returns: errno | |
387 | */ | |
388 | ||
389 | static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) | |
390 | { | |
5c676f6d | 391 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
392 | struct gfs2_sbd *sdp = dip->i_sbd; |
393 | struct gfs2_holder ghs[2]; | |
394 | struct inode *inode; | |
395 | struct buffer_head *dibh; | |
396 | int error; | |
397 | ||
b3b94faa DT |
398 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); |
399 | ||
7359a19c SW |
400 | inode = gfs2_createi(ghs, &dentry->d_name, S_IFDIR | mode); |
401 | if (IS_ERR(inode)) { | |
b3b94faa | 402 | gfs2_holder_uninit(ghs); |
7359a19c | 403 | return PTR_ERR(inode); |
b3b94faa DT |
404 | } |
405 | ||
5c676f6d | 406 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
407 | |
408 | ip->i_di.di_nlink = 2; | |
409 | ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); | |
410 | ip->i_di.di_flags |= GFS2_DIF_JDATA; | |
411 | ip->i_di.di_payload_format = GFS2_FORMAT_DE; | |
412 | ip->i_di.di_entries = 2; | |
413 | ||
414 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
415 | ||
416 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
417 | struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data; | |
c752666c | 418 | struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1); |
71b86f56 | 419 | struct qstr str; |
b3b94faa | 420 | |
71b86f56 | 421 | gfs2_str2qstr(&str, "."); |
c752666c SW |
422 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
423 | gfs2_qstr2dirent(&str, GFS2_DIRENT_SIZE(str.len), dent); | |
b3b94faa | 424 | dent->de_inum = di->di_num; /* already GFS2 endian */ |
b3b94faa | 425 | dent->de_type = DT_DIR; |
b3b94faa DT |
426 | di->di_entries = cpu_to_be32(1); |
427 | ||
71b86f56 | 428 | gfs2_str2qstr(&str, ".."); |
c752666c SW |
429 | dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1)); |
430 | gfs2_qstr2dirent(&str, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent); | |
b3b94faa DT |
431 | |
432 | gfs2_inum_out(&dip->i_num, (char *) &dent->de_inum); | |
b3b94faa | 433 | dent->de_type = DT_DIR; |
b3b94faa DT |
434 | |
435 | gfs2_dinode_out(&ip->i_di, (char *)di); | |
436 | ||
437 | brelse(dibh); | |
438 | } | |
439 | ||
440 | error = gfs2_change_nlink(dip, +1); | |
441 | gfs2_assert_withdraw(sdp, !error); /* dip already pinned */ | |
442 | ||
443 | gfs2_trans_end(sdp); | |
444 | if (dip->i_alloc.al_rgd) | |
445 | gfs2_inplace_release(dip); | |
446 | gfs2_quota_unlock(dip); | |
447 | gfs2_alloc_put(dip); | |
448 | ||
449 | gfs2_glock_dq_uninit_m(2, ghs); | |
450 | ||
b3b94faa DT |
451 | d_instantiate(dentry, inode); |
452 | mark_inode_dirty(inode); | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
457 | /** | |
458 | * gfs2_rmdir - Remove a directory | |
459 | * @dir: The parent directory of the directory to be removed | |
460 | * @dentry: The dentry of the directory to remove | |
461 | * | |
462 | * Remove a directory. Call gfs2_rmdiri() | |
463 | * | |
464 | * Returns: errno | |
465 | */ | |
466 | ||
467 | static int gfs2_rmdir(struct inode *dir, struct dentry *dentry) | |
468 | { | |
5c676f6d | 469 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa | 470 | struct gfs2_sbd *sdp = dip->i_sbd; |
5c676f6d | 471 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
472 | struct gfs2_unlinked *ul; |
473 | struct gfs2_holder ghs[2]; | |
474 | int error; | |
475 | ||
b3b94faa DT |
476 | error = gfs2_unlinked_get(sdp, &ul); |
477 | if (error) | |
478 | return error; | |
479 | ||
480 | gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
481 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
482 | ||
483 | error = gfs2_glock_nq_m(2, ghs); | |
484 | if (error) | |
485 | goto out; | |
486 | ||
487 | error = gfs2_unlink_ok(dip, &dentry->d_name, ip); | |
488 | if (error) | |
489 | goto out_gunlock; | |
490 | ||
491 | if (ip->i_di.di_entries < 2) { | |
492 | if (gfs2_consist_inode(ip)) | |
493 | gfs2_dinode_print(&ip->i_di); | |
494 | error = -EIO; | |
495 | goto out_gunlock; | |
496 | } | |
497 | if (ip->i_di.di_entries > 2) { | |
498 | error = -ENOTEMPTY; | |
499 | goto out_gunlock; | |
500 | } | |
501 | ||
502 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + 3 * RES_LEAF + | |
503 | RES_UNLINKED, 0); | |
504 | if (error) | |
505 | goto out_gunlock; | |
506 | ||
507 | error = gfs2_rmdiri(dip, &dentry->d_name, ip, ul); | |
508 | ||
509 | gfs2_trans_end(sdp); | |
510 | ||
511 | out_gunlock: | |
512 | gfs2_glock_dq_m(2, ghs); | |
513 | ||
514 | out: | |
515 | gfs2_holder_uninit(ghs); | |
516 | gfs2_holder_uninit(ghs + 1); | |
517 | ||
518 | gfs2_unlinked_put(sdp, ul); | |
519 | ||
520 | return error; | |
521 | } | |
522 | ||
523 | /** | |
524 | * gfs2_mknod - Make a special file | |
525 | * @dir: The directory in which the special file will reside | |
526 | * @dentry: The dentry of the special file | |
527 | * @mode: The mode of the special file | |
528 | * @rdev: The device specification of the special file | |
529 | * | |
530 | */ | |
531 | ||
532 | static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode, | |
533 | dev_t dev) | |
534 | { | |
5c676f6d | 535 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
536 | struct gfs2_sbd *sdp = dip->i_sbd; |
537 | struct gfs2_holder ghs[2]; | |
538 | struct inode *inode; | |
539 | struct buffer_head *dibh; | |
540 | uint32_t major = 0, minor = 0; | |
541 | int error; | |
542 | ||
b3b94faa DT |
543 | switch (mode & S_IFMT) { |
544 | case S_IFBLK: | |
545 | case S_IFCHR: | |
546 | major = MAJOR(dev); | |
547 | minor = MINOR(dev); | |
548 | break; | |
549 | case S_IFIFO: | |
550 | case S_IFSOCK: | |
551 | break; | |
552 | default: | |
553 | return -EOPNOTSUPP; | |
554 | }; | |
555 | ||
556 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); | |
557 | ||
7359a19c SW |
558 | inode = gfs2_createi(ghs, &dentry->d_name, mode); |
559 | if (IS_ERR(inode)) { | |
b3b94faa | 560 | gfs2_holder_uninit(ghs); |
7359a19c | 561 | return PTR_ERR(inode); |
b3b94faa DT |
562 | } |
563 | ||
5c676f6d | 564 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
565 | |
566 | ip->i_di.di_major = major; | |
567 | ip->i_di.di_minor = minor; | |
568 | ||
569 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
570 | ||
571 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
572 | gfs2_dinode_out(&ip->i_di, dibh->b_data); | |
573 | brelse(dibh); | |
574 | } | |
575 | ||
576 | gfs2_trans_end(sdp); | |
577 | if (dip->i_alloc.al_rgd) | |
578 | gfs2_inplace_release(dip); | |
579 | gfs2_quota_unlock(dip); | |
580 | gfs2_alloc_put(dip); | |
581 | ||
582 | gfs2_glock_dq_uninit_m(2, ghs); | |
583 | ||
b3b94faa DT |
584 | d_instantiate(dentry, inode); |
585 | mark_inode_dirty(inode); | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
590 | /** | |
591 | * gfs2_rename - Rename a file | |
592 | * @odir: Parent directory of old file name | |
593 | * @odentry: The old dentry of the file | |
594 | * @ndir: Parent directory of new file name | |
595 | * @ndentry: The new dentry of the file | |
596 | * | |
597 | * Returns: errno | |
598 | */ | |
599 | ||
600 | static int gfs2_rename(struct inode *odir, struct dentry *odentry, | |
601 | struct inode *ndir, struct dentry *ndentry) | |
602 | { | |
5c676f6d SW |
603 | struct gfs2_inode *odip = odir->u.generic_ip; |
604 | struct gfs2_inode *ndip = ndir->u.generic_ip; | |
605 | struct gfs2_inode *ip = odentry->d_inode->u.generic_ip; | |
b3b94faa DT |
606 | struct gfs2_inode *nip = NULL; |
607 | struct gfs2_sbd *sdp = odip->i_sbd; | |
608 | struct gfs2_unlinked *ul; | |
609 | struct gfs2_holder ghs[4], r_gh; | |
610 | unsigned int num_gh; | |
611 | int dir_rename = 0; | |
612 | int alloc_required; | |
613 | unsigned int x; | |
614 | int error; | |
615 | ||
b3b94faa | 616 | if (ndentry->d_inode) { |
5c676f6d | 617 | nip = ndentry->d_inode->u.generic_ip; |
b3b94faa DT |
618 | if (ip == nip) |
619 | return 0; | |
620 | } | |
621 | ||
622 | error = gfs2_unlinked_get(sdp, &ul); | |
623 | if (error) | |
624 | return error; | |
625 | ||
626 | /* Make sure we aren't trying to move a dirctory into it's subdir */ | |
627 | ||
628 | if (S_ISDIR(ip->i_di.di_mode) && odip != ndip) { | |
629 | dir_rename = 1; | |
630 | ||
631 | error = gfs2_glock_nq_init(sdp->sd_rename_gl, | |
632 | LM_ST_EXCLUSIVE, 0, | |
633 | &r_gh); | |
634 | if (error) | |
635 | goto out; | |
636 | ||
637 | error = gfs2_ok_to_move(ip, ndip); | |
638 | if (error) | |
639 | goto out_gunlock_r; | |
640 | } | |
641 | ||
642 | gfs2_holder_init(odip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
643 | gfs2_holder_init(ndip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
644 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 2); | |
645 | num_gh = 3; | |
646 | ||
647 | if (nip) | |
648 | gfs2_holder_init(nip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh++); | |
649 | ||
650 | error = gfs2_glock_nq_m(num_gh, ghs); | |
651 | if (error) | |
652 | goto out_uninit; | |
653 | ||
654 | /* Check out the old directory */ | |
655 | ||
656 | error = gfs2_unlink_ok(odip, &odentry->d_name, ip); | |
657 | if (error) | |
658 | goto out_gunlock; | |
659 | ||
660 | /* Check out the new directory */ | |
661 | ||
662 | if (nip) { | |
663 | error = gfs2_unlink_ok(ndip, &ndentry->d_name, nip); | |
664 | if (error) | |
665 | goto out_gunlock; | |
666 | ||
667 | if (S_ISDIR(nip->i_di.di_mode)) { | |
668 | if (nip->i_di.di_entries < 2) { | |
669 | if (gfs2_consist_inode(nip)) | |
670 | gfs2_dinode_print(&nip->i_di); | |
671 | error = -EIO; | |
672 | goto out_gunlock; | |
673 | } | |
674 | if (nip->i_di.di_entries > 2) { | |
675 | error = -ENOTEMPTY; | |
676 | goto out_gunlock; | |
677 | } | |
678 | } | |
679 | } else { | |
680 | error = gfs2_repermission(ndir, MAY_WRITE | MAY_EXEC, NULL); | |
681 | if (error) | |
682 | goto out_gunlock; | |
683 | ||
c752666c | 684 | error = gfs2_dir_search(ndir, &ndentry->d_name, NULL, NULL); |
b3b94faa DT |
685 | switch (error) { |
686 | case -ENOENT: | |
687 | error = 0; | |
688 | break; | |
689 | case 0: | |
690 | error = -EEXIST; | |
691 | default: | |
692 | goto out_gunlock; | |
693 | }; | |
694 | ||
695 | if (odip != ndip) { | |
696 | if (!ndip->i_di.di_nlink) { | |
697 | error = -EINVAL; | |
698 | goto out_gunlock; | |
699 | } | |
700 | if (ndip->i_di.di_entries == (uint32_t)-1) { | |
701 | error = -EFBIG; | |
702 | goto out_gunlock; | |
703 | } | |
704 | if (S_ISDIR(ip->i_di.di_mode) && | |
705 | ndip->i_di.di_nlink == (uint32_t)-1) { | |
706 | error = -EMLINK; | |
707 | goto out_gunlock; | |
708 | } | |
709 | } | |
710 | } | |
711 | ||
712 | /* Check out the dir to be renamed */ | |
713 | ||
714 | if (dir_rename) { | |
715 | error = gfs2_repermission(odentry->d_inode, MAY_WRITE, NULL); | |
716 | if (error) | |
717 | goto out_gunlock; | |
718 | } | |
719 | ||
c752666c SW |
720 | alloc_required = error = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); |
721 | if (error < 0) | |
b3b94faa | 722 | goto out_gunlock; |
c752666c | 723 | error = 0; |
b3b94faa DT |
724 | |
725 | if (alloc_required) { | |
726 | struct gfs2_alloc *al = gfs2_alloc_get(ndip); | |
727 | ||
728 | error = gfs2_quota_lock(ndip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
729 | if (error) | |
730 | goto out_alloc; | |
731 | ||
732 | error = gfs2_quota_check(ndip, ndip->i_di.di_uid, | |
733 | ndip->i_di.di_gid); | |
734 | if (error) | |
735 | goto out_gunlock_q; | |
736 | ||
737 | al->al_requested = sdp->sd_max_dirres; | |
738 | ||
739 | error = gfs2_inplace_reserve(ndip); | |
740 | if (error) | |
741 | goto out_gunlock_q; | |
742 | ||
fe1bdedc | 743 | error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + |
b3b94faa DT |
744 | al->al_rgd->rd_ri.ri_length + |
745 | 4 * RES_DINODE + 4 * RES_LEAF + | |
746 | RES_UNLINKED + RES_STATFS + | |
747 | RES_QUOTA, 0); | |
748 | if (error) | |
749 | goto out_ipreserv; | |
750 | } else { | |
751 | error = gfs2_trans_begin(sdp, 4 * RES_DINODE + | |
752 | 5 * RES_LEAF + | |
753 | RES_UNLINKED, 0); | |
754 | if (error) | |
755 | goto out_gunlock; | |
756 | } | |
757 | ||
758 | /* Remove the target file, if it exists */ | |
759 | ||
760 | if (nip) { | |
761 | if (S_ISDIR(nip->i_di.di_mode)) | |
762 | error = gfs2_rmdiri(ndip, &ndentry->d_name, nip, ul); | |
763 | else | |
764 | error = gfs2_unlinki(ndip, &ndentry->d_name, nip, ul); | |
765 | if (error) | |
766 | goto out_end_trans; | |
767 | } | |
768 | ||
769 | if (dir_rename) { | |
770 | struct qstr name; | |
71b86f56 | 771 | gfs2_str2qstr(&name, ".."); |
b3b94faa DT |
772 | |
773 | error = gfs2_change_nlink(ndip, +1); | |
774 | if (error) | |
775 | goto out_end_trans; | |
776 | error = gfs2_change_nlink(odip, -1); | |
777 | if (error) | |
778 | goto out_end_trans; | |
779 | ||
780 | error = gfs2_dir_mvino(ip, &name, &ndip->i_num, DT_DIR); | |
781 | if (error) | |
782 | goto out_end_trans; | |
783 | } else { | |
784 | struct buffer_head *dibh; | |
785 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
786 | if (error) | |
787 | goto out_end_trans; | |
788 | ip->i_di.di_ctime = get_seconds(); | |
d4e9c4c3 | 789 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
b3b94faa DT |
790 | gfs2_dinode_out(&ip->i_di, dibh->b_data); |
791 | brelse(dibh); | |
792 | } | |
793 | ||
794 | error = gfs2_dir_del(odip, &odentry->d_name); | |
795 | if (error) | |
796 | goto out_end_trans; | |
797 | ||
c752666c | 798 | error = gfs2_dir_add(ndir, &ndentry->d_name, &ip->i_num, |
b3b94faa DT |
799 | IF2DT(ip->i_di.di_mode)); |
800 | if (error) | |
801 | goto out_end_trans; | |
802 | ||
803 | out_end_trans: | |
804 | gfs2_trans_end(sdp); | |
805 | ||
806 | out_ipreserv: | |
807 | if (alloc_required) | |
808 | gfs2_inplace_release(ndip); | |
809 | ||
810 | out_gunlock_q: | |
811 | if (alloc_required) | |
812 | gfs2_quota_unlock(ndip); | |
813 | ||
814 | out_alloc: | |
815 | if (alloc_required) | |
816 | gfs2_alloc_put(ndip); | |
817 | ||
818 | out_gunlock: | |
819 | gfs2_glock_dq_m(num_gh, ghs); | |
820 | ||
821 | out_uninit: | |
822 | for (x = 0; x < num_gh; x++) | |
823 | gfs2_holder_uninit(ghs + x); | |
824 | ||
825 | out_gunlock_r: | |
826 | if (dir_rename) | |
827 | gfs2_glock_dq_uninit(&r_gh); | |
828 | ||
829 | out: | |
830 | gfs2_unlinked_put(sdp, ul); | |
831 | ||
832 | return error; | |
833 | } | |
834 | ||
835 | /** | |
836 | * gfs2_readlink - Read the value of a symlink | |
837 | * @dentry: the symlink | |
838 | * @buf: the buffer to read the symlink data into | |
839 | * @size: the size of the buffer | |
840 | * | |
841 | * Returns: errno | |
842 | */ | |
843 | ||
844 | static int gfs2_readlink(struct dentry *dentry, char __user *user_buf, | |
845 | int user_size) | |
846 | { | |
5c676f6d | 847 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
848 | char array[GFS2_FAST_NAME_SIZE], *buf = array; |
849 | unsigned int len = GFS2_FAST_NAME_SIZE; | |
850 | int error; | |
851 | ||
b3b94faa DT |
852 | error = gfs2_readlinki(ip, &buf, &len); |
853 | if (error) | |
854 | return error; | |
855 | ||
856 | if (user_size > len - 1) | |
857 | user_size = len - 1; | |
858 | ||
859 | if (copy_to_user(user_buf, buf, user_size)) | |
860 | error = -EFAULT; | |
861 | else | |
862 | error = user_size; | |
863 | ||
864 | if (buf != array) | |
865 | kfree(buf); | |
866 | ||
867 | return error; | |
868 | } | |
869 | ||
870 | /** | |
871 | * gfs2_follow_link - Follow a symbolic link | |
872 | * @dentry: The dentry of the link | |
873 | * @nd: Data that we pass to vfs_follow_link() | |
874 | * | |
875 | * This can handle symlinks of any size. It is optimised for symlinks | |
876 | * under GFS2_FAST_NAME_SIZE. | |
877 | * | |
878 | * Returns: 0 on success or error code | |
879 | */ | |
880 | ||
881 | static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd) | |
882 | { | |
5c676f6d | 883 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
884 | char array[GFS2_FAST_NAME_SIZE], *buf = array; |
885 | unsigned int len = GFS2_FAST_NAME_SIZE; | |
886 | int error; | |
887 | ||
b3b94faa DT |
888 | error = gfs2_readlinki(ip, &buf, &len); |
889 | if (!error) { | |
890 | error = vfs_follow_link(nd, buf); | |
891 | if (buf != array) | |
892 | kfree(buf); | |
893 | } | |
894 | ||
895 | return ERR_PTR(error); | |
896 | } | |
897 | ||
898 | /** | |
899 | * gfs2_permission - | |
900 | * @inode: | |
901 | * @mask: | |
902 | * @nd: passed from Linux VFS, ignored by us | |
903 | * | |
904 | * Returns: errno | |
905 | */ | |
906 | ||
907 | static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd) | |
908 | { | |
5c676f6d | 909 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
910 | struct gfs2_holder i_gh; |
911 | int error; | |
912 | ||
b3b94faa DT |
913 | if (ip->i_vn == ip->i_gl->gl_vn) |
914 | return generic_permission(inode, mask, gfs2_check_acl); | |
915 | ||
916 | error = gfs2_glock_nq_init(ip->i_gl, | |
917 | LM_ST_SHARED, LM_FLAG_ANY, | |
918 | &i_gh); | |
919 | if (!error) { | |
920 | error = generic_permission(inode, mask, gfs2_check_acl_locked); | |
921 | gfs2_glock_dq_uninit(&i_gh); | |
922 | } | |
923 | ||
924 | return error; | |
925 | } | |
926 | ||
927 | static int setattr_size(struct inode *inode, struct iattr *attr) | |
928 | { | |
5c676f6d | 929 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
930 | int error; |
931 | ||
932 | if (attr->ia_size != ip->i_di.di_size) { | |
933 | error = vmtruncate(inode, attr->ia_size); | |
934 | if (error) | |
935 | return error; | |
936 | } | |
937 | ||
aa6a85a9 | 938 | error = gfs2_truncatei(ip, attr->ia_size); |
b3b94faa DT |
939 | if (error) |
940 | return error; | |
941 | ||
942 | return error; | |
943 | } | |
944 | ||
945 | static int setattr_chown(struct inode *inode, struct iattr *attr) | |
946 | { | |
5c676f6d | 947 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
948 | struct gfs2_sbd *sdp = ip->i_sbd; |
949 | struct buffer_head *dibh; | |
950 | uint32_t ouid, ogid, nuid, ngid; | |
951 | int error; | |
952 | ||
953 | ouid = ip->i_di.di_uid; | |
954 | ogid = ip->i_di.di_gid; | |
955 | nuid = attr->ia_uid; | |
956 | ngid = attr->ia_gid; | |
957 | ||
958 | if (!(attr->ia_valid & ATTR_UID) || ouid == nuid) | |
959 | ouid = nuid = NO_QUOTA_CHANGE; | |
960 | if (!(attr->ia_valid & ATTR_GID) || ogid == ngid) | |
961 | ogid = ngid = NO_QUOTA_CHANGE; | |
962 | ||
963 | gfs2_alloc_get(ip); | |
964 | ||
965 | error = gfs2_quota_lock(ip, nuid, ngid); | |
966 | if (error) | |
967 | goto out_alloc; | |
968 | ||
969 | if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) { | |
970 | error = gfs2_quota_check(ip, nuid, ngid); | |
971 | if (error) | |
972 | goto out_gunlock_q; | |
973 | } | |
974 | ||
975 | error = gfs2_trans_begin(sdp, RES_DINODE + 2 * RES_QUOTA, 0); | |
976 | if (error) | |
977 | goto out_gunlock_q; | |
978 | ||
979 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
980 | if (error) | |
981 | goto out_end_trans; | |
982 | ||
983 | error = inode_setattr(inode, attr); | |
984 | gfs2_assert_warn(sdp, !error); | |
985 | gfs2_inode_attr_out(ip); | |
986 | ||
d4e9c4c3 | 987 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
b3b94faa DT |
988 | gfs2_dinode_out(&ip->i_di, dibh->b_data); |
989 | brelse(dibh); | |
990 | ||
991 | if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) { | |
992 | gfs2_quota_change(ip, -ip->i_di.di_blocks, | |
993 | ouid, ogid); | |
994 | gfs2_quota_change(ip, ip->i_di.di_blocks, | |
995 | nuid, ngid); | |
996 | } | |
997 | ||
998 | out_end_trans: | |
999 | gfs2_trans_end(sdp); | |
1000 | ||
1001 | out_gunlock_q: | |
1002 | gfs2_quota_unlock(ip); | |
1003 | ||
1004 | out_alloc: | |
1005 | gfs2_alloc_put(ip); | |
1006 | ||
1007 | return error; | |
1008 | } | |
1009 | ||
1010 | /** | |
1011 | * gfs2_setattr - Change attributes on an inode | |
1012 | * @dentry: The dentry which is changing | |
1013 | * @attr: The structure describing the change | |
1014 | * | |
1015 | * The VFS layer wants to change one or more of an inodes attributes. Write | |
1016 | * that change out to disk. | |
1017 | * | |
1018 | * Returns: errno | |
1019 | */ | |
1020 | ||
1021 | static int gfs2_setattr(struct dentry *dentry, struct iattr *attr) | |
1022 | { | |
1023 | struct inode *inode = dentry->d_inode; | |
5c676f6d | 1024 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
1025 | struct gfs2_holder i_gh; |
1026 | int error; | |
1027 | ||
b3b94faa DT |
1028 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh); |
1029 | if (error) | |
1030 | return error; | |
1031 | ||
1032 | error = -EPERM; | |
1033 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) | |
1034 | goto out; | |
1035 | ||
1036 | error = inode_change_ok(inode, attr); | |
1037 | if (error) | |
1038 | goto out; | |
1039 | ||
1040 | if (attr->ia_valid & ATTR_SIZE) | |
1041 | error = setattr_size(inode, attr); | |
1042 | else if (attr->ia_valid & (ATTR_UID | ATTR_GID)) | |
1043 | error = setattr_chown(inode, attr); | |
1044 | else if ((attr->ia_valid & ATTR_MODE) && IS_POSIXACL(inode)) | |
1045 | error = gfs2_acl_chmod(ip, attr); | |
1046 | else | |
1047 | error = gfs2_setattr_simple(ip, attr); | |
1048 | ||
1049 | out: | |
1050 | gfs2_glock_dq_uninit(&i_gh); | |
1051 | ||
1052 | if (!error) | |
1053 | mark_inode_dirty(inode); | |
1054 | ||
1055 | return error; | |
1056 | } | |
1057 | ||
1058 | /** | |
1059 | * gfs2_getattr - Read out an inode's attributes | |
1060 | * @mnt: ? | |
1061 | * @dentry: The dentry to stat | |
1062 | * @stat: The inode's stats | |
1063 | * | |
1064 | * Returns: errno | |
1065 | */ | |
1066 | ||
1067 | static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, | |
1068 | struct kstat *stat) | |
1069 | { | |
1070 | struct inode *inode = dentry->d_inode; | |
5c676f6d | 1071 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
1072 | struct gfs2_holder gh; |
1073 | int error; | |
1074 | ||
b3b94faa DT |
1075 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); |
1076 | if (!error) { | |
1077 | generic_fillattr(inode, stat); | |
1078 | gfs2_glock_dq_uninit(&gh); | |
1079 | } | |
1080 | ||
1081 | return error; | |
1082 | } | |
1083 | ||
1084 | static int gfs2_setxattr(struct dentry *dentry, const char *name, | |
1085 | const void *data, size_t size, int flags) | |
1086 | { | |
5c676f6d | 1087 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
1088 | struct gfs2_ea_request er; |
1089 | ||
b3b94faa DT |
1090 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1091 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1092 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1093 | return -EOPNOTSUPP; | |
1094 | er.er_data = (char *)data; | |
1095 | er.er_name_len = strlen(er.er_name); | |
1096 | er.er_data_len = size; | |
1097 | er.er_flags = flags; | |
1098 | ||
1099 | gfs2_assert_warn(ip->i_sbd, !(er.er_flags & GFS2_ERF_MODE)); | |
1100 | ||
1101 | return gfs2_ea_set(ip, &er); | |
1102 | } | |
1103 | ||
1104 | static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, | |
1105 | void *data, size_t size) | |
1106 | { | |
1107 | struct gfs2_ea_request er; | |
1108 | ||
b3b94faa DT |
1109 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1110 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1111 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1112 | return -EOPNOTSUPP; | |
1113 | er.er_data = data; | |
1114 | er.er_name_len = strlen(er.er_name); | |
1115 | er.er_data_len = size; | |
1116 | ||
5c676f6d | 1117 | return gfs2_ea_get(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1118 | } |
1119 | ||
1120 | static ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size) | |
1121 | { | |
1122 | struct gfs2_ea_request er; | |
1123 | ||
b3b94faa DT |
1124 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1125 | er.er_data = (size) ? buffer : NULL; | |
1126 | er.er_data_len = size; | |
1127 | ||
5c676f6d | 1128 | return gfs2_ea_list(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1129 | } |
1130 | ||
1131 | static int gfs2_removexattr(struct dentry *dentry, const char *name) | |
1132 | { | |
1133 | struct gfs2_ea_request er; | |
1134 | ||
b3b94faa DT |
1135 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1136 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1137 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1138 | return -EOPNOTSUPP; | |
1139 | er.er_name_len = strlen(er.er_name); | |
1140 | ||
5c676f6d | 1141 | return gfs2_ea_remove(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1142 | } |
1143 | ||
1144 | struct inode_operations gfs2_file_iops = { | |
1145 | .permission = gfs2_permission, | |
1146 | .setattr = gfs2_setattr, | |
1147 | .getattr = gfs2_getattr, | |
1148 | .setxattr = gfs2_setxattr, | |
1149 | .getxattr = gfs2_getxattr, | |
1150 | .listxattr = gfs2_listxattr, | |
1151 | .removexattr = gfs2_removexattr, | |
1152 | }; | |
1153 | ||
1154 | struct inode_operations gfs2_dev_iops = { | |
1155 | .permission = gfs2_permission, | |
1156 | .setattr = gfs2_setattr, | |
1157 | .getattr = gfs2_getattr, | |
1158 | .setxattr = gfs2_setxattr, | |
1159 | .getxattr = gfs2_getxattr, | |
1160 | .listxattr = gfs2_listxattr, | |
1161 | .removexattr = gfs2_removexattr, | |
1162 | }; | |
1163 | ||
1164 | struct inode_operations gfs2_dir_iops = { | |
1165 | .create = gfs2_create, | |
1166 | .lookup = gfs2_lookup, | |
1167 | .link = gfs2_link, | |
1168 | .unlink = gfs2_unlink, | |
1169 | .symlink = gfs2_symlink, | |
1170 | .mkdir = gfs2_mkdir, | |
1171 | .rmdir = gfs2_rmdir, | |
1172 | .mknod = gfs2_mknod, | |
1173 | .rename = gfs2_rename, | |
1174 | .permission = gfs2_permission, | |
1175 | .setattr = gfs2_setattr, | |
1176 | .getattr = gfs2_getattr, | |
1177 | .setxattr = gfs2_setxattr, | |
1178 | .getxattr = gfs2_getxattr, | |
1179 | .listxattr = gfs2_listxattr, | |
1180 | .removexattr = gfs2_removexattr, | |
1181 | }; | |
1182 | ||
1183 | struct inode_operations gfs2_symlink_iops = { | |
1184 | .readlink = gfs2_readlink, | |
1185 | .follow_link = gfs2_follow_link, | |
1186 | .permission = gfs2_permission, | |
1187 | .setattr = gfs2_setattr, | |
1188 | .getattr = gfs2_getattr, | |
1189 | .setxattr = gfs2_setxattr, | |
1190 | .getxattr = gfs2_getxattr, | |
1191 | .listxattr = gfs2_listxattr, | |
1192 | .removexattr = gfs2_removexattr, | |
1193 | }; | |
1194 |