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Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. | |
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> |
b3b94faa DT |
21 | #include <asm/semaphore.h> |
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 | ||
215 | error = gfs2_trans_begin(sdp, | |
216 | sdp->sd_max_dirres + | |
217 | al->al_rgd->rd_ri.ri_length + | |
218 | 2 * RES_DINODE + RES_STATFS + | |
219 | RES_QUOTA, 0); | |
220 | if (error) | |
221 | goto out_ipres; | |
222 | } else { | |
223 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF, 0); | |
224 | if (error) | |
225 | goto out_ipres; | |
226 | } | |
227 | ||
c752666c | 228 | error = gfs2_dir_add(dir, &dentry->d_name, &ip->i_num, |
b3b94faa DT |
229 | IF2DT(ip->i_di.di_mode)); |
230 | if (error) | |
231 | goto out_end_trans; | |
232 | ||
233 | error = gfs2_change_nlink(ip, +1); | |
234 | ||
235 | out_end_trans: | |
236 | gfs2_trans_end(sdp); | |
237 | ||
238 | out_ipres: | |
239 | if (alloc_required) | |
240 | gfs2_inplace_release(dip); | |
241 | ||
242 | out_gunlock_q: | |
243 | if (alloc_required) | |
244 | gfs2_quota_unlock(dip); | |
245 | ||
246 | out_alloc: | |
247 | if (alloc_required) | |
248 | gfs2_alloc_put(dip); | |
249 | ||
250 | out_gunlock: | |
251 | gfs2_glock_dq_m(2, ghs); | |
252 | ||
253 | out: | |
254 | gfs2_holder_uninit(ghs); | |
255 | gfs2_holder_uninit(ghs + 1); | |
256 | ||
257 | if (!error) { | |
258 | atomic_inc(&inode->i_count); | |
259 | d_instantiate(dentry, inode); | |
260 | mark_inode_dirty(inode); | |
261 | } | |
262 | ||
263 | return error; | |
264 | } | |
265 | ||
266 | /** | |
267 | * gfs2_unlink - Unlink a file | |
268 | * @dir: The inode of the directory containing the file to unlink | |
269 | * @dentry: The file itself | |
270 | * | |
271 | * Unlink a file. Call gfs2_unlinki() | |
272 | * | |
273 | * Returns: errno | |
274 | */ | |
275 | ||
276 | static int gfs2_unlink(struct inode *dir, struct dentry *dentry) | |
277 | { | |
5c676f6d | 278 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa | 279 | struct gfs2_sbd *sdp = dip->i_sbd; |
5c676f6d | 280 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
281 | struct gfs2_unlinked *ul; |
282 | struct gfs2_holder ghs[2]; | |
283 | int error; | |
284 | ||
b3b94faa DT |
285 | error = gfs2_unlinked_get(sdp, &ul); |
286 | if (error) | |
287 | return error; | |
288 | ||
289 | gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
290 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
291 | ||
292 | error = gfs2_glock_nq_m(2, ghs); | |
293 | if (error) | |
294 | goto out; | |
295 | ||
296 | error = gfs2_unlink_ok(dip, &dentry->d_name, ip); | |
297 | if (error) | |
298 | goto out_gunlock; | |
299 | ||
300 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF + | |
301 | RES_UNLINKED, 0); | |
302 | if (error) | |
303 | goto out_gunlock; | |
304 | ||
305 | error = gfs2_unlinki(dip, &dentry->d_name, ip,ul); | |
306 | ||
307 | gfs2_trans_end(sdp); | |
308 | ||
309 | out_gunlock: | |
310 | gfs2_glock_dq_m(2, ghs); | |
311 | ||
312 | out: | |
313 | gfs2_holder_uninit(ghs); | |
314 | gfs2_holder_uninit(ghs + 1); | |
315 | ||
316 | gfs2_unlinked_put(sdp, ul); | |
317 | ||
318 | return error; | |
319 | } | |
320 | ||
321 | /** | |
322 | * gfs2_symlink - Create a symlink | |
323 | * @dir: The directory to create the symlink in | |
324 | * @dentry: The dentry to put the symlink in | |
325 | * @symname: The thing which the link points to | |
326 | * | |
327 | * Returns: errno | |
328 | */ | |
329 | ||
330 | static int gfs2_symlink(struct inode *dir, struct dentry *dentry, | |
331 | const char *symname) | |
332 | { | |
5c676f6d | 333 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
334 | struct gfs2_sbd *sdp = dip->i_sbd; |
335 | struct gfs2_holder ghs[2]; | |
336 | struct inode *inode; | |
337 | struct buffer_head *dibh; | |
338 | int size; | |
339 | int error; | |
340 | ||
b3b94faa DT |
341 | /* Must be stuffed with a null terminator for gfs2_follow_link() */ |
342 | size = strlen(symname); | |
343 | if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode) - 1) | |
344 | return -ENAMETOOLONG; | |
345 | ||
346 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); | |
347 | ||
7359a19c SW |
348 | inode = gfs2_createi(ghs, &dentry->d_name, S_IFLNK | S_IRWXUGO); |
349 | if (IS_ERR(inode)) { | |
b3b94faa | 350 | gfs2_holder_uninit(ghs); |
7359a19c | 351 | return PTR_ERR(inode); |
b3b94faa DT |
352 | } |
353 | ||
5c676f6d | 354 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
355 | |
356 | ip->i_di.di_size = size; | |
357 | ||
358 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
359 | ||
360 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
361 | gfs2_dinode_out(&ip->i_di, dibh->b_data); | |
362 | memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname, | |
363 | size); | |
364 | brelse(dibh); | |
365 | } | |
366 | ||
367 | gfs2_trans_end(sdp); | |
368 | if (dip->i_alloc.al_rgd) | |
369 | gfs2_inplace_release(dip); | |
370 | gfs2_quota_unlock(dip); | |
371 | gfs2_alloc_put(dip); | |
372 | ||
373 | gfs2_glock_dq_uninit_m(2, ghs); | |
374 | ||
b3b94faa DT |
375 | d_instantiate(dentry, inode); |
376 | mark_inode_dirty(inode); | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | /** | |
382 | * gfs2_mkdir - Make a directory | |
383 | * @dir: The parent directory of the new one | |
384 | * @dentry: The dentry of the new directory | |
385 | * @mode: The mode of the new directory | |
386 | * | |
387 | * Returns: errno | |
388 | */ | |
389 | ||
390 | static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) | |
391 | { | |
5c676f6d | 392 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
393 | struct gfs2_sbd *sdp = dip->i_sbd; |
394 | struct gfs2_holder ghs[2]; | |
395 | struct inode *inode; | |
396 | struct buffer_head *dibh; | |
397 | int error; | |
398 | ||
b3b94faa DT |
399 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); |
400 | ||
7359a19c SW |
401 | inode = gfs2_createi(ghs, &dentry->d_name, S_IFDIR | mode); |
402 | if (IS_ERR(inode)) { | |
b3b94faa | 403 | gfs2_holder_uninit(ghs); |
7359a19c | 404 | return PTR_ERR(inode); |
b3b94faa DT |
405 | } |
406 | ||
5c676f6d | 407 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
408 | |
409 | ip->i_di.di_nlink = 2; | |
410 | ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); | |
411 | ip->i_di.di_flags |= GFS2_DIF_JDATA; | |
412 | ip->i_di.di_payload_format = GFS2_FORMAT_DE; | |
413 | ip->i_di.di_entries = 2; | |
414 | ||
415 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
416 | ||
417 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
418 | struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data; | |
c752666c SW |
419 | struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1); |
420 | struct qstr str = { .name = ".", .len = 1 }; | |
421 | str.hash = gfs2_disk_hash(str.name, str.len); | |
b3b94faa | 422 | |
c752666c SW |
423 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
424 | gfs2_qstr2dirent(&str, GFS2_DIRENT_SIZE(str.len), dent); | |
b3b94faa | 425 | dent->de_inum = di->di_num; /* already GFS2 endian */ |
b3b94faa | 426 | dent->de_type = DT_DIR; |
b3b94faa DT |
427 | di->di_entries = cpu_to_be32(1); |
428 | ||
c752666c SW |
429 | str.name = ".."; |
430 | str.len = 2; | |
431 | str.hash = gfs2_disk_hash(str.name, str.len); | |
432 | dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1)); | |
433 | gfs2_qstr2dirent(&str, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent); | |
b3b94faa DT |
434 | |
435 | gfs2_inum_out(&dip->i_num, (char *) &dent->de_inum); | |
b3b94faa | 436 | dent->de_type = DT_DIR; |
b3b94faa DT |
437 | |
438 | gfs2_dinode_out(&ip->i_di, (char *)di); | |
439 | ||
440 | brelse(dibh); | |
441 | } | |
442 | ||
443 | error = gfs2_change_nlink(dip, +1); | |
444 | gfs2_assert_withdraw(sdp, !error); /* dip already pinned */ | |
445 | ||
446 | gfs2_trans_end(sdp); | |
447 | if (dip->i_alloc.al_rgd) | |
448 | gfs2_inplace_release(dip); | |
449 | gfs2_quota_unlock(dip); | |
450 | gfs2_alloc_put(dip); | |
451 | ||
452 | gfs2_glock_dq_uninit_m(2, ghs); | |
453 | ||
b3b94faa DT |
454 | d_instantiate(dentry, inode); |
455 | mark_inode_dirty(inode); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | /** | |
461 | * gfs2_rmdir - Remove a directory | |
462 | * @dir: The parent directory of the directory to be removed | |
463 | * @dentry: The dentry of the directory to remove | |
464 | * | |
465 | * Remove a directory. Call gfs2_rmdiri() | |
466 | * | |
467 | * Returns: errno | |
468 | */ | |
469 | ||
470 | static int gfs2_rmdir(struct inode *dir, struct dentry *dentry) | |
471 | { | |
5c676f6d | 472 | struct gfs2_inode *dip = dir->u.generic_ip; |
b3b94faa | 473 | struct gfs2_sbd *sdp = dip->i_sbd; |
5c676f6d | 474 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
475 | struct gfs2_unlinked *ul; |
476 | struct gfs2_holder ghs[2]; | |
477 | int error; | |
478 | ||
b3b94faa DT |
479 | error = gfs2_unlinked_get(sdp, &ul); |
480 | if (error) | |
481 | return error; | |
482 | ||
483 | gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
484 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
485 | ||
486 | error = gfs2_glock_nq_m(2, ghs); | |
487 | if (error) | |
488 | goto out; | |
489 | ||
490 | error = gfs2_unlink_ok(dip, &dentry->d_name, ip); | |
491 | if (error) | |
492 | goto out_gunlock; | |
493 | ||
494 | if (ip->i_di.di_entries < 2) { | |
495 | if (gfs2_consist_inode(ip)) | |
496 | gfs2_dinode_print(&ip->i_di); | |
497 | error = -EIO; | |
498 | goto out_gunlock; | |
499 | } | |
500 | if (ip->i_di.di_entries > 2) { | |
501 | error = -ENOTEMPTY; | |
502 | goto out_gunlock; | |
503 | } | |
504 | ||
505 | error = gfs2_trans_begin(sdp, 2 * RES_DINODE + 3 * RES_LEAF + | |
506 | RES_UNLINKED, 0); | |
507 | if (error) | |
508 | goto out_gunlock; | |
509 | ||
510 | error = gfs2_rmdiri(dip, &dentry->d_name, ip, ul); | |
511 | ||
512 | gfs2_trans_end(sdp); | |
513 | ||
514 | out_gunlock: | |
515 | gfs2_glock_dq_m(2, ghs); | |
516 | ||
517 | out: | |
518 | gfs2_holder_uninit(ghs); | |
519 | gfs2_holder_uninit(ghs + 1); | |
520 | ||
521 | gfs2_unlinked_put(sdp, ul); | |
522 | ||
523 | return error; | |
524 | } | |
525 | ||
526 | /** | |
527 | * gfs2_mknod - Make a special file | |
528 | * @dir: The directory in which the special file will reside | |
529 | * @dentry: The dentry of the special file | |
530 | * @mode: The mode of the special file | |
531 | * @rdev: The device specification of the special file | |
532 | * | |
533 | */ | |
534 | ||
535 | static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode, | |
536 | dev_t dev) | |
537 | { | |
5c676f6d | 538 | struct gfs2_inode *dip = dir->u.generic_ip, *ip; |
b3b94faa DT |
539 | struct gfs2_sbd *sdp = dip->i_sbd; |
540 | struct gfs2_holder ghs[2]; | |
541 | struct inode *inode; | |
542 | struct buffer_head *dibh; | |
543 | uint32_t major = 0, minor = 0; | |
544 | int error; | |
545 | ||
b3b94faa DT |
546 | switch (mode & S_IFMT) { |
547 | case S_IFBLK: | |
548 | case S_IFCHR: | |
549 | major = MAJOR(dev); | |
550 | minor = MINOR(dev); | |
551 | break; | |
552 | case S_IFIFO: | |
553 | case S_IFSOCK: | |
554 | break; | |
555 | default: | |
556 | return -EOPNOTSUPP; | |
557 | }; | |
558 | ||
559 | gfs2_holder_init(dip->i_gl, 0, 0, ghs); | |
560 | ||
7359a19c SW |
561 | inode = gfs2_createi(ghs, &dentry->d_name, mode); |
562 | if (IS_ERR(inode)) { | |
b3b94faa | 563 | gfs2_holder_uninit(ghs); |
7359a19c | 564 | return PTR_ERR(inode); |
b3b94faa DT |
565 | } |
566 | ||
5c676f6d | 567 | ip = ghs[1].gh_gl->gl_object; |
b3b94faa DT |
568 | |
569 | ip->i_di.di_major = major; | |
570 | ip->i_di.di_minor = minor; | |
571 | ||
572 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
573 | ||
574 | if (!gfs2_assert_withdraw(sdp, !error)) { | |
575 | gfs2_dinode_out(&ip->i_di, dibh->b_data); | |
576 | brelse(dibh); | |
577 | } | |
578 | ||
579 | gfs2_trans_end(sdp); | |
580 | if (dip->i_alloc.al_rgd) | |
581 | gfs2_inplace_release(dip); | |
582 | gfs2_quota_unlock(dip); | |
583 | gfs2_alloc_put(dip); | |
584 | ||
585 | gfs2_glock_dq_uninit_m(2, ghs); | |
586 | ||
b3b94faa DT |
587 | d_instantiate(dentry, inode); |
588 | mark_inode_dirty(inode); | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | /** | |
594 | * gfs2_rename - Rename a file | |
595 | * @odir: Parent directory of old file name | |
596 | * @odentry: The old dentry of the file | |
597 | * @ndir: Parent directory of new file name | |
598 | * @ndentry: The new dentry of the file | |
599 | * | |
600 | * Returns: errno | |
601 | */ | |
602 | ||
603 | static int gfs2_rename(struct inode *odir, struct dentry *odentry, | |
604 | struct inode *ndir, struct dentry *ndentry) | |
605 | { | |
5c676f6d SW |
606 | struct gfs2_inode *odip = odir->u.generic_ip; |
607 | struct gfs2_inode *ndip = ndir->u.generic_ip; | |
608 | struct gfs2_inode *ip = odentry->d_inode->u.generic_ip; | |
b3b94faa DT |
609 | struct gfs2_inode *nip = NULL; |
610 | struct gfs2_sbd *sdp = odip->i_sbd; | |
611 | struct gfs2_unlinked *ul; | |
612 | struct gfs2_holder ghs[4], r_gh; | |
613 | unsigned int num_gh; | |
614 | int dir_rename = 0; | |
615 | int alloc_required; | |
616 | unsigned int x; | |
617 | int error; | |
618 | ||
b3b94faa | 619 | if (ndentry->d_inode) { |
5c676f6d | 620 | nip = ndentry->d_inode->u.generic_ip; |
b3b94faa DT |
621 | if (ip == nip) |
622 | return 0; | |
623 | } | |
624 | ||
625 | error = gfs2_unlinked_get(sdp, &ul); | |
626 | if (error) | |
627 | return error; | |
628 | ||
629 | /* Make sure we aren't trying to move a dirctory into it's subdir */ | |
630 | ||
631 | if (S_ISDIR(ip->i_di.di_mode) && odip != ndip) { | |
632 | dir_rename = 1; | |
633 | ||
634 | error = gfs2_glock_nq_init(sdp->sd_rename_gl, | |
635 | LM_ST_EXCLUSIVE, 0, | |
636 | &r_gh); | |
637 | if (error) | |
638 | goto out; | |
639 | ||
640 | error = gfs2_ok_to_move(ip, ndip); | |
641 | if (error) | |
642 | goto out_gunlock_r; | |
643 | } | |
644 | ||
645 | gfs2_holder_init(odip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); | |
646 | gfs2_holder_init(ndip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); | |
647 | gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 2); | |
648 | num_gh = 3; | |
649 | ||
650 | if (nip) | |
651 | gfs2_holder_init(nip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh++); | |
652 | ||
653 | error = gfs2_glock_nq_m(num_gh, ghs); | |
654 | if (error) | |
655 | goto out_uninit; | |
656 | ||
657 | /* Check out the old directory */ | |
658 | ||
659 | error = gfs2_unlink_ok(odip, &odentry->d_name, ip); | |
660 | if (error) | |
661 | goto out_gunlock; | |
662 | ||
663 | /* Check out the new directory */ | |
664 | ||
665 | if (nip) { | |
666 | error = gfs2_unlink_ok(ndip, &ndentry->d_name, nip); | |
667 | if (error) | |
668 | goto out_gunlock; | |
669 | ||
670 | if (S_ISDIR(nip->i_di.di_mode)) { | |
671 | if (nip->i_di.di_entries < 2) { | |
672 | if (gfs2_consist_inode(nip)) | |
673 | gfs2_dinode_print(&nip->i_di); | |
674 | error = -EIO; | |
675 | goto out_gunlock; | |
676 | } | |
677 | if (nip->i_di.di_entries > 2) { | |
678 | error = -ENOTEMPTY; | |
679 | goto out_gunlock; | |
680 | } | |
681 | } | |
682 | } else { | |
683 | error = gfs2_repermission(ndir, MAY_WRITE | MAY_EXEC, NULL); | |
684 | if (error) | |
685 | goto out_gunlock; | |
686 | ||
c752666c | 687 | error = gfs2_dir_search(ndir, &ndentry->d_name, NULL, NULL); |
b3b94faa DT |
688 | switch (error) { |
689 | case -ENOENT: | |
690 | error = 0; | |
691 | break; | |
692 | case 0: | |
693 | error = -EEXIST; | |
694 | default: | |
695 | goto out_gunlock; | |
696 | }; | |
697 | ||
698 | if (odip != ndip) { | |
699 | if (!ndip->i_di.di_nlink) { | |
700 | error = -EINVAL; | |
701 | goto out_gunlock; | |
702 | } | |
703 | if (ndip->i_di.di_entries == (uint32_t)-1) { | |
704 | error = -EFBIG; | |
705 | goto out_gunlock; | |
706 | } | |
707 | if (S_ISDIR(ip->i_di.di_mode) && | |
708 | ndip->i_di.di_nlink == (uint32_t)-1) { | |
709 | error = -EMLINK; | |
710 | goto out_gunlock; | |
711 | } | |
712 | } | |
713 | } | |
714 | ||
715 | /* Check out the dir to be renamed */ | |
716 | ||
717 | if (dir_rename) { | |
718 | error = gfs2_repermission(odentry->d_inode, MAY_WRITE, NULL); | |
719 | if (error) | |
720 | goto out_gunlock; | |
721 | } | |
722 | ||
c752666c SW |
723 | alloc_required = error = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); |
724 | if (error < 0) | |
b3b94faa | 725 | goto out_gunlock; |
c752666c | 726 | error = 0; |
b3b94faa DT |
727 | |
728 | if (alloc_required) { | |
729 | struct gfs2_alloc *al = gfs2_alloc_get(ndip); | |
730 | ||
731 | error = gfs2_quota_lock(ndip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
732 | if (error) | |
733 | goto out_alloc; | |
734 | ||
735 | error = gfs2_quota_check(ndip, ndip->i_di.di_uid, | |
736 | ndip->i_di.di_gid); | |
737 | if (error) | |
738 | goto out_gunlock_q; | |
739 | ||
740 | al->al_requested = sdp->sd_max_dirres; | |
741 | ||
742 | error = gfs2_inplace_reserve(ndip); | |
743 | if (error) | |
744 | goto out_gunlock_q; | |
745 | ||
746 | error = gfs2_trans_begin(sdp, | |
747 | sdp->sd_max_dirres + | |
748 | al->al_rgd->rd_ri.ri_length + | |
749 | 4 * RES_DINODE + 4 * RES_LEAF + | |
750 | RES_UNLINKED + RES_STATFS + | |
751 | RES_QUOTA, 0); | |
752 | if (error) | |
753 | goto out_ipreserv; | |
754 | } else { | |
755 | error = gfs2_trans_begin(sdp, 4 * RES_DINODE + | |
756 | 5 * RES_LEAF + | |
757 | RES_UNLINKED, 0); | |
758 | if (error) | |
759 | goto out_gunlock; | |
760 | } | |
761 | ||
762 | /* Remove the target file, if it exists */ | |
763 | ||
764 | if (nip) { | |
765 | if (S_ISDIR(nip->i_di.di_mode)) | |
766 | error = gfs2_rmdiri(ndip, &ndentry->d_name, nip, ul); | |
767 | else | |
768 | error = gfs2_unlinki(ndip, &ndentry->d_name, nip, ul); | |
769 | if (error) | |
770 | goto out_end_trans; | |
771 | } | |
772 | ||
773 | if (dir_rename) { | |
774 | struct qstr name; | |
775 | name.len = 2; | |
776 | name.name = ".."; | |
c752666c | 777 | name.hash = gfs2_disk_hash(name.name, name.len); |
b3b94faa DT |
778 | |
779 | error = gfs2_change_nlink(ndip, +1); | |
780 | if (error) | |
781 | goto out_end_trans; | |
782 | error = gfs2_change_nlink(odip, -1); | |
783 | if (error) | |
784 | goto out_end_trans; | |
785 | ||
786 | error = gfs2_dir_mvino(ip, &name, &ndip->i_num, DT_DIR); | |
787 | if (error) | |
788 | goto out_end_trans; | |
789 | } else { | |
790 | struct buffer_head *dibh; | |
791 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
792 | if (error) | |
793 | goto out_end_trans; | |
794 | ip->i_di.di_ctime = get_seconds(); | |
d4e9c4c3 | 795 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
b3b94faa DT |
796 | gfs2_dinode_out(&ip->i_di, dibh->b_data); |
797 | brelse(dibh); | |
798 | } | |
799 | ||
800 | error = gfs2_dir_del(odip, &odentry->d_name); | |
801 | if (error) | |
802 | goto out_end_trans; | |
803 | ||
c752666c | 804 | error = gfs2_dir_add(ndir, &ndentry->d_name, &ip->i_num, |
b3b94faa DT |
805 | IF2DT(ip->i_di.di_mode)); |
806 | if (error) | |
807 | goto out_end_trans; | |
808 | ||
809 | out_end_trans: | |
810 | gfs2_trans_end(sdp); | |
811 | ||
812 | out_ipreserv: | |
813 | if (alloc_required) | |
814 | gfs2_inplace_release(ndip); | |
815 | ||
816 | out_gunlock_q: | |
817 | if (alloc_required) | |
818 | gfs2_quota_unlock(ndip); | |
819 | ||
820 | out_alloc: | |
821 | if (alloc_required) | |
822 | gfs2_alloc_put(ndip); | |
823 | ||
824 | out_gunlock: | |
825 | gfs2_glock_dq_m(num_gh, ghs); | |
826 | ||
827 | out_uninit: | |
828 | for (x = 0; x < num_gh; x++) | |
829 | gfs2_holder_uninit(ghs + x); | |
830 | ||
831 | out_gunlock_r: | |
832 | if (dir_rename) | |
833 | gfs2_glock_dq_uninit(&r_gh); | |
834 | ||
835 | out: | |
836 | gfs2_unlinked_put(sdp, ul); | |
837 | ||
838 | return error; | |
839 | } | |
840 | ||
841 | /** | |
842 | * gfs2_readlink - Read the value of a symlink | |
843 | * @dentry: the symlink | |
844 | * @buf: the buffer to read the symlink data into | |
845 | * @size: the size of the buffer | |
846 | * | |
847 | * Returns: errno | |
848 | */ | |
849 | ||
850 | static int gfs2_readlink(struct dentry *dentry, char __user *user_buf, | |
851 | int user_size) | |
852 | { | |
5c676f6d | 853 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
854 | char array[GFS2_FAST_NAME_SIZE], *buf = array; |
855 | unsigned int len = GFS2_FAST_NAME_SIZE; | |
856 | int error; | |
857 | ||
b3b94faa DT |
858 | error = gfs2_readlinki(ip, &buf, &len); |
859 | if (error) | |
860 | return error; | |
861 | ||
862 | if (user_size > len - 1) | |
863 | user_size = len - 1; | |
864 | ||
865 | if (copy_to_user(user_buf, buf, user_size)) | |
866 | error = -EFAULT; | |
867 | else | |
868 | error = user_size; | |
869 | ||
870 | if (buf != array) | |
871 | kfree(buf); | |
872 | ||
873 | return error; | |
874 | } | |
875 | ||
876 | /** | |
877 | * gfs2_follow_link - Follow a symbolic link | |
878 | * @dentry: The dentry of the link | |
879 | * @nd: Data that we pass to vfs_follow_link() | |
880 | * | |
881 | * This can handle symlinks of any size. It is optimised for symlinks | |
882 | * under GFS2_FAST_NAME_SIZE. | |
883 | * | |
884 | * Returns: 0 on success or error code | |
885 | */ | |
886 | ||
887 | static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd) | |
888 | { | |
5c676f6d | 889 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
890 | char array[GFS2_FAST_NAME_SIZE], *buf = array; |
891 | unsigned int len = GFS2_FAST_NAME_SIZE; | |
892 | int error; | |
893 | ||
b3b94faa DT |
894 | error = gfs2_readlinki(ip, &buf, &len); |
895 | if (!error) { | |
896 | error = vfs_follow_link(nd, buf); | |
897 | if (buf != array) | |
898 | kfree(buf); | |
899 | } | |
900 | ||
901 | return ERR_PTR(error); | |
902 | } | |
903 | ||
904 | /** | |
905 | * gfs2_permission - | |
906 | * @inode: | |
907 | * @mask: | |
908 | * @nd: passed from Linux VFS, ignored by us | |
909 | * | |
910 | * Returns: errno | |
911 | */ | |
912 | ||
913 | static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd) | |
914 | { | |
5c676f6d | 915 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
916 | struct gfs2_holder i_gh; |
917 | int error; | |
918 | ||
b3b94faa DT |
919 | if (ip->i_vn == ip->i_gl->gl_vn) |
920 | return generic_permission(inode, mask, gfs2_check_acl); | |
921 | ||
922 | error = gfs2_glock_nq_init(ip->i_gl, | |
923 | LM_ST_SHARED, LM_FLAG_ANY, | |
924 | &i_gh); | |
925 | if (!error) { | |
926 | error = generic_permission(inode, mask, gfs2_check_acl_locked); | |
927 | gfs2_glock_dq_uninit(&i_gh); | |
928 | } | |
929 | ||
930 | return error; | |
931 | } | |
932 | ||
933 | static int setattr_size(struct inode *inode, struct iattr *attr) | |
934 | { | |
5c676f6d | 935 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
936 | int error; |
937 | ||
938 | if (attr->ia_size != ip->i_di.di_size) { | |
939 | error = vmtruncate(inode, attr->ia_size); | |
940 | if (error) | |
941 | return error; | |
942 | } | |
943 | ||
aa6a85a9 | 944 | error = gfs2_truncatei(ip, attr->ia_size); |
b3b94faa DT |
945 | if (error) |
946 | return error; | |
947 | ||
948 | return error; | |
949 | } | |
950 | ||
951 | static int setattr_chown(struct inode *inode, struct iattr *attr) | |
952 | { | |
5c676f6d | 953 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
954 | struct gfs2_sbd *sdp = ip->i_sbd; |
955 | struct buffer_head *dibh; | |
956 | uint32_t ouid, ogid, nuid, ngid; | |
957 | int error; | |
958 | ||
959 | ouid = ip->i_di.di_uid; | |
960 | ogid = ip->i_di.di_gid; | |
961 | nuid = attr->ia_uid; | |
962 | ngid = attr->ia_gid; | |
963 | ||
964 | if (!(attr->ia_valid & ATTR_UID) || ouid == nuid) | |
965 | ouid = nuid = NO_QUOTA_CHANGE; | |
966 | if (!(attr->ia_valid & ATTR_GID) || ogid == ngid) | |
967 | ogid = ngid = NO_QUOTA_CHANGE; | |
968 | ||
969 | gfs2_alloc_get(ip); | |
970 | ||
971 | error = gfs2_quota_lock(ip, nuid, ngid); | |
972 | if (error) | |
973 | goto out_alloc; | |
974 | ||
975 | if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) { | |
976 | error = gfs2_quota_check(ip, nuid, ngid); | |
977 | if (error) | |
978 | goto out_gunlock_q; | |
979 | } | |
980 | ||
981 | error = gfs2_trans_begin(sdp, RES_DINODE + 2 * RES_QUOTA, 0); | |
982 | if (error) | |
983 | goto out_gunlock_q; | |
984 | ||
985 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
986 | if (error) | |
987 | goto out_end_trans; | |
988 | ||
989 | error = inode_setattr(inode, attr); | |
990 | gfs2_assert_warn(sdp, !error); | |
991 | gfs2_inode_attr_out(ip); | |
992 | ||
d4e9c4c3 | 993 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
b3b94faa DT |
994 | gfs2_dinode_out(&ip->i_di, dibh->b_data); |
995 | brelse(dibh); | |
996 | ||
997 | if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) { | |
998 | gfs2_quota_change(ip, -ip->i_di.di_blocks, | |
999 | ouid, ogid); | |
1000 | gfs2_quota_change(ip, ip->i_di.di_blocks, | |
1001 | nuid, ngid); | |
1002 | } | |
1003 | ||
1004 | out_end_trans: | |
1005 | gfs2_trans_end(sdp); | |
1006 | ||
1007 | out_gunlock_q: | |
1008 | gfs2_quota_unlock(ip); | |
1009 | ||
1010 | out_alloc: | |
1011 | gfs2_alloc_put(ip); | |
1012 | ||
1013 | return error; | |
1014 | } | |
1015 | ||
1016 | /** | |
1017 | * gfs2_setattr - Change attributes on an inode | |
1018 | * @dentry: The dentry which is changing | |
1019 | * @attr: The structure describing the change | |
1020 | * | |
1021 | * The VFS layer wants to change one or more of an inodes attributes. Write | |
1022 | * that change out to disk. | |
1023 | * | |
1024 | * Returns: errno | |
1025 | */ | |
1026 | ||
1027 | static int gfs2_setattr(struct dentry *dentry, struct iattr *attr) | |
1028 | { | |
1029 | struct inode *inode = dentry->d_inode; | |
5c676f6d | 1030 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
1031 | struct gfs2_holder i_gh; |
1032 | int error; | |
1033 | ||
b3b94faa DT |
1034 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh); |
1035 | if (error) | |
1036 | return error; | |
1037 | ||
1038 | error = -EPERM; | |
1039 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) | |
1040 | goto out; | |
1041 | ||
1042 | error = inode_change_ok(inode, attr); | |
1043 | if (error) | |
1044 | goto out; | |
1045 | ||
1046 | if (attr->ia_valid & ATTR_SIZE) | |
1047 | error = setattr_size(inode, attr); | |
1048 | else if (attr->ia_valid & (ATTR_UID | ATTR_GID)) | |
1049 | error = setattr_chown(inode, attr); | |
1050 | else if ((attr->ia_valid & ATTR_MODE) && IS_POSIXACL(inode)) | |
1051 | error = gfs2_acl_chmod(ip, attr); | |
1052 | else | |
1053 | error = gfs2_setattr_simple(ip, attr); | |
1054 | ||
1055 | out: | |
1056 | gfs2_glock_dq_uninit(&i_gh); | |
1057 | ||
1058 | if (!error) | |
1059 | mark_inode_dirty(inode); | |
1060 | ||
1061 | return error; | |
1062 | } | |
1063 | ||
1064 | /** | |
1065 | * gfs2_getattr - Read out an inode's attributes | |
1066 | * @mnt: ? | |
1067 | * @dentry: The dentry to stat | |
1068 | * @stat: The inode's stats | |
1069 | * | |
1070 | * Returns: errno | |
1071 | */ | |
1072 | ||
1073 | static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, | |
1074 | struct kstat *stat) | |
1075 | { | |
1076 | struct inode *inode = dentry->d_inode; | |
5c676f6d | 1077 | struct gfs2_inode *ip = inode->u.generic_ip; |
b3b94faa DT |
1078 | struct gfs2_holder gh; |
1079 | int error; | |
1080 | ||
b3b94faa DT |
1081 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); |
1082 | if (!error) { | |
1083 | generic_fillattr(inode, stat); | |
1084 | gfs2_glock_dq_uninit(&gh); | |
1085 | } | |
1086 | ||
1087 | return error; | |
1088 | } | |
1089 | ||
1090 | static int gfs2_setxattr(struct dentry *dentry, const char *name, | |
1091 | const void *data, size_t size, int flags) | |
1092 | { | |
5c676f6d | 1093 | struct gfs2_inode *ip = dentry->d_inode->u.generic_ip; |
b3b94faa DT |
1094 | struct gfs2_ea_request er; |
1095 | ||
b3b94faa DT |
1096 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1097 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1098 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1099 | return -EOPNOTSUPP; | |
1100 | er.er_data = (char *)data; | |
1101 | er.er_name_len = strlen(er.er_name); | |
1102 | er.er_data_len = size; | |
1103 | er.er_flags = flags; | |
1104 | ||
1105 | gfs2_assert_warn(ip->i_sbd, !(er.er_flags & GFS2_ERF_MODE)); | |
1106 | ||
1107 | return gfs2_ea_set(ip, &er); | |
1108 | } | |
1109 | ||
1110 | static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, | |
1111 | void *data, size_t size) | |
1112 | { | |
1113 | struct gfs2_ea_request er; | |
1114 | ||
b3b94faa DT |
1115 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1116 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1117 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1118 | return -EOPNOTSUPP; | |
1119 | er.er_data = data; | |
1120 | er.er_name_len = strlen(er.er_name); | |
1121 | er.er_data_len = size; | |
1122 | ||
5c676f6d | 1123 | return gfs2_ea_get(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1124 | } |
1125 | ||
1126 | static ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size) | |
1127 | { | |
1128 | struct gfs2_ea_request er; | |
1129 | ||
b3b94faa DT |
1130 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1131 | er.er_data = (size) ? buffer : NULL; | |
1132 | er.er_data_len = size; | |
1133 | ||
5c676f6d | 1134 | return gfs2_ea_list(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1135 | } |
1136 | ||
1137 | static int gfs2_removexattr(struct dentry *dentry, const char *name) | |
1138 | { | |
1139 | struct gfs2_ea_request er; | |
1140 | ||
b3b94faa DT |
1141 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
1142 | er.er_type = gfs2_ea_name2type(name, &er.er_name); | |
1143 | if (er.er_type == GFS2_EATYPE_UNUSED) | |
1144 | return -EOPNOTSUPP; | |
1145 | er.er_name_len = strlen(er.er_name); | |
1146 | ||
5c676f6d | 1147 | return gfs2_ea_remove(dentry->d_inode->u.generic_ip, &er); |
b3b94faa DT |
1148 | } |
1149 | ||
1150 | struct inode_operations gfs2_file_iops = { | |
1151 | .permission = gfs2_permission, | |
1152 | .setattr = gfs2_setattr, | |
1153 | .getattr = gfs2_getattr, | |
1154 | .setxattr = gfs2_setxattr, | |
1155 | .getxattr = gfs2_getxattr, | |
1156 | .listxattr = gfs2_listxattr, | |
1157 | .removexattr = gfs2_removexattr, | |
1158 | }; | |
1159 | ||
1160 | struct inode_operations gfs2_dev_iops = { | |
1161 | .permission = gfs2_permission, | |
1162 | .setattr = gfs2_setattr, | |
1163 | .getattr = gfs2_getattr, | |
1164 | .setxattr = gfs2_setxattr, | |
1165 | .getxattr = gfs2_getxattr, | |
1166 | .listxattr = gfs2_listxattr, | |
1167 | .removexattr = gfs2_removexattr, | |
1168 | }; | |
1169 | ||
1170 | struct inode_operations gfs2_dir_iops = { | |
1171 | .create = gfs2_create, | |
1172 | .lookup = gfs2_lookup, | |
1173 | .link = gfs2_link, | |
1174 | .unlink = gfs2_unlink, | |
1175 | .symlink = gfs2_symlink, | |
1176 | .mkdir = gfs2_mkdir, | |
1177 | .rmdir = gfs2_rmdir, | |
1178 | .mknod = gfs2_mknod, | |
1179 | .rename = gfs2_rename, | |
1180 | .permission = gfs2_permission, | |
1181 | .setattr = gfs2_setattr, | |
1182 | .getattr = gfs2_getattr, | |
1183 | .setxattr = gfs2_setxattr, | |
1184 | .getxattr = gfs2_getxattr, | |
1185 | .listxattr = gfs2_listxattr, | |
1186 | .removexattr = gfs2_removexattr, | |
1187 | }; | |
1188 | ||
1189 | struct inode_operations gfs2_symlink_iops = { | |
1190 | .readlink = gfs2_readlink, | |
1191 | .follow_link = gfs2_follow_link, | |
1192 | .permission = gfs2_permission, | |
1193 | .setattr = gfs2_setattr, | |
1194 | .getattr = gfs2_getattr, | |
1195 | .setxattr = gfs2_setxattr, | |
1196 | .getxattr = gfs2_getxattr, | |
1197 | .listxattr = gfs2_listxattr, | |
1198 | .removexattr = gfs2_removexattr, | |
1199 | }; | |
1200 |