Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (C) International Business Machines Corp., 2000-2004 | |
3 | * Copyright (C) Christoph Hellwig, 2002 | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
63f83c9f | 7 | * the Free Software Foundation; either version 2 of the License, or |
1da177e4 | 8 | * (at your option) any later version. |
63f83c9f | 9 | * |
1da177e4 LT |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
13 | * the GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
63f83c9f | 16 | * along with this program; if not, write to the Free Software |
1da177e4 LT |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ | |
19 | ||
16f7e0fe | 20 | #include <linux/capability.h> |
1da177e4 LT |
21 | #include <linux/fs.h> |
22 | #include <linux/xattr.h> | |
9a59f452 | 23 | #include <linux/posix_acl_xattr.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
1da177e4 | 25 | #include <linux/quotaops.h> |
1d15b10f | 26 | #include <linux/security.h> |
1da177e4 LT |
27 | #include "jfs_incore.h" |
28 | #include "jfs_superblock.h" | |
29 | #include "jfs_dmap.h" | |
30 | #include "jfs_debug.h" | |
31 | #include "jfs_dinode.h" | |
32 | #include "jfs_extent.h" | |
33 | #include "jfs_metapage.h" | |
34 | #include "jfs_xattr.h" | |
35 | #include "jfs_acl.h" | |
36 | ||
37 | /* | |
38 | * jfs_xattr.c: extended attribute service | |
39 | * | |
40 | * Overall design -- | |
41 | * | |
42 | * Format: | |
43 | * | |
44 | * Extended attribute lists (jfs_ea_list) consist of an overall size (32 bit | |
45 | * value) and a variable (0 or more) number of extended attribute | |
46 | * entries. Each extended attribute entry (jfs_ea) is a <name,value> double | |
47 | * where <name> is constructed from a null-terminated ascii string | |
48 | * (1 ... 255 bytes in the name) and <value> is arbitrary 8 bit data | |
49 | * (1 ... 65535 bytes). The in-memory format is | |
50 | * | |
51 | * 0 1 2 4 4 + namelen + 1 | |
52 | * +-------+--------+--------+----------------+-------------------+ | |
53 | * | Flags | Name | Value | Name String \0 | Data . . . . | | |
54 | * | | Length | Length | | | | |
55 | * +-------+--------+--------+----------------+-------------------+ | |
56 | * | |
57 | * A jfs_ea_list then is structured as | |
58 | * | |
59 | * 0 4 4 + EA_SIZE(ea1) | |
60 | * +------------+-------------------+--------------------+----- | |
63f83c9f | 61 | * | Overall EA | First FEA Element | Second FEA Element | ..... |
1da177e4 LT |
62 | * | List Size | | | |
63 | * +------------+-------------------+--------------------+----- | |
64 | * | |
65 | * On-disk: | |
66 | * | |
f720e3ba DK |
67 | * FEALISTs are stored on disk using blocks allocated by dbAlloc() and |
68 | * written directly. An EA list may be in-lined in the inode if there is | |
69 | * sufficient room available. | |
1da177e4 LT |
70 | */ |
71 | ||
72 | struct ea_buffer { | |
73 | int flag; /* Indicates what storage xattr points to */ | |
74 | int max_size; /* largest xattr that fits in current buffer */ | |
75 | dxd_t new_ea; /* dxd to replace ea when modifying xattr */ | |
76 | struct metapage *mp; /* metapage containing ea list */ | |
77 | struct jfs_ea_list *xattr; /* buffer containing ea list */ | |
78 | }; | |
79 | ||
80 | /* | |
81 | * ea_buffer.flag values | |
82 | */ | |
83 | #define EA_INLINE 0x0001 | |
84 | #define EA_EXTENT 0x0002 | |
85 | #define EA_NEW 0x0004 | |
86 | #define EA_MALLOC 0x0008 | |
87 | ||
1da177e4 | 88 | |
aca0fa34 DK |
89 | static int is_known_namespace(const char *name) |
90 | { | |
91 | if (strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) && | |
92 | strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) && | |
93 | strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) && | |
94 | strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN)) | |
95 | return false; | |
96 | ||
97 | return true; | |
98 | } | |
99 | ||
1da177e4 LT |
100 | /* |
101 | * These three routines are used to recognize on-disk extended attributes | |
102 | * that are in a recognized namespace. If the attribute is not recognized, | |
103 | * "os2." is prepended to the name | |
104 | */ | |
aca0fa34 | 105 | static int is_os2_xattr(struct jfs_ea *ea) |
1da177e4 | 106 | { |
aca0fa34 | 107 | return !is_known_namespace(ea->name); |
1da177e4 LT |
108 | } |
109 | ||
110 | static inline int name_size(struct jfs_ea *ea) | |
111 | { | |
112 | if (is_os2_xattr(ea)) | |
113 | return ea->namelen + XATTR_OS2_PREFIX_LEN; | |
114 | else | |
115 | return ea->namelen; | |
116 | } | |
117 | ||
118 | static inline int copy_name(char *buffer, struct jfs_ea *ea) | |
119 | { | |
120 | int len = ea->namelen; | |
121 | ||
122 | if (is_os2_xattr(ea)) { | |
123 | memcpy(buffer, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN); | |
124 | buffer += XATTR_OS2_PREFIX_LEN; | |
125 | len += XATTR_OS2_PREFIX_LEN; | |
126 | } | |
127 | memcpy(buffer, ea->name, ea->namelen); | |
128 | buffer[ea->namelen] = 0; | |
129 | ||
130 | return len; | |
131 | } | |
132 | ||
133 | /* Forward references */ | |
134 | static void ea_release(struct inode *inode, struct ea_buffer *ea_buf); | |
135 | ||
136 | /* | |
137 | * NAME: ea_write_inline | |
63f83c9f | 138 | * |
1da177e4 | 139 | * FUNCTION: Attempt to write an EA inline if area is available |
63f83c9f | 140 | * |
1da177e4 LT |
141 | * PRE CONDITIONS: |
142 | * Already verified that the specified EA is small enough to fit inline | |
143 | * | |
144 | * PARAMETERS: | |
145 | * ip - Inode pointer | |
146 | * ealist - EA list pointer | |
147 | * size - size of ealist in bytes | |
148 | * ea - dxd_t structure to be filled in with necessary EA information | |
149 | * if we successfully copy the EA inline | |
150 | * | |
151 | * NOTES: | |
152 | * Checks if the inode's inline area is available. If so, copies EA inline | |
153 | * and sets <ea> fields appropriately. Otherwise, returns failure, EA will | |
154 | * have to be put into an extent. | |
155 | * | |
156 | * RETURNS: 0 for successful copy to inline area; -1 if area not available | |
157 | */ | |
158 | static int ea_write_inline(struct inode *ip, struct jfs_ea_list *ealist, | |
159 | int size, dxd_t * ea) | |
160 | { | |
161 | struct jfs_inode_info *ji = JFS_IP(ip); | |
162 | ||
163 | /* | |
164 | * Make sure we have an EA -- the NULL EA list is valid, but you | |
165 | * can't copy it! | |
166 | */ | |
167 | if (ealist && size > sizeof (struct jfs_ea_list)) { | |
168 | assert(size <= sizeof (ji->i_inline_ea)); | |
169 | ||
170 | /* | |
171 | * See if the space is available or if it is already being | |
172 | * used for an inline EA. | |
173 | */ | |
174 | if (!(ji->mode2 & INLINEEA) && !(ji->ea.flag & DXD_INLINE)) | |
175 | return -EPERM; | |
176 | ||
177 | DXDsize(ea, size); | |
178 | DXDlength(ea, 0); | |
179 | DXDaddress(ea, 0); | |
180 | memcpy(ji->i_inline_ea, ealist, size); | |
181 | ea->flag = DXD_INLINE; | |
182 | ji->mode2 &= ~INLINEEA; | |
183 | } else { | |
184 | ea->flag = 0; | |
185 | DXDsize(ea, 0); | |
186 | DXDlength(ea, 0); | |
187 | DXDaddress(ea, 0); | |
188 | ||
189 | /* Free up INLINE area */ | |
190 | if (ji->ea.flag & DXD_INLINE) | |
191 | ji->mode2 |= INLINEEA; | |
192 | } | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | /* | |
198 | * NAME: ea_write | |
63f83c9f | 199 | * |
1da177e4 | 200 | * FUNCTION: Write an EA for an inode |
63f83c9f DK |
201 | * |
202 | * PRE CONDITIONS: EA has been verified | |
1da177e4 LT |
203 | * |
204 | * PARAMETERS: | |
205 | * ip - Inode pointer | |
206 | * ealist - EA list pointer | |
207 | * size - size of ealist in bytes | |
208 | * ea - dxd_t structure to be filled in appropriately with where the | |
209 | * EA was copied | |
210 | * | |
211 | * NOTES: Will write EA inline if able to, otherwise allocates blocks for an | |
212 | * extent and synchronously writes it to those blocks. | |
213 | * | |
214 | * RETURNS: 0 for success; Anything else indicates failure | |
215 | */ | |
216 | static int ea_write(struct inode *ip, struct jfs_ea_list *ealist, int size, | |
217 | dxd_t * ea) | |
218 | { | |
219 | struct super_block *sb = ip->i_sb; | |
220 | struct jfs_inode_info *ji = JFS_IP(ip); | |
221 | struct jfs_sb_info *sbi = JFS_SBI(sb); | |
222 | int nblocks; | |
223 | s64 blkno; | |
224 | int rc = 0, i; | |
225 | char *cp; | |
226 | s32 nbytes, nb; | |
227 | s32 bytes_to_write; | |
228 | struct metapage *mp; | |
229 | ||
230 | /* | |
231 | * Quick check to see if this is an in-linable EA. Short EAs | |
232 | * and empty EAs are all in-linable, provided the space exists. | |
233 | */ | |
234 | if (!ealist || size <= sizeof (ji->i_inline_ea)) { | |
235 | if (!ea_write_inline(ip, ealist, size, ea)) | |
236 | return 0; | |
237 | } | |
238 | ||
239 | /* figure out how many blocks we need */ | |
240 | nblocks = (size + (sb->s_blocksize - 1)) >> sb->s_blocksize_bits; | |
241 | ||
242 | /* Allocate new blocks to quota. */ | |
5dd4056d CH |
243 | rc = dquot_alloc_block(ip, nblocks); |
244 | if (rc) | |
245 | return rc; | |
1da177e4 LT |
246 | |
247 | rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno); | |
248 | if (rc) { | |
249 | /*Rollback quota allocation. */ | |
5dd4056d | 250 | dquot_free_block(ip, nblocks); |
1da177e4 LT |
251 | return rc; |
252 | } | |
253 | ||
254 | /* | |
255 | * Now have nblocks worth of storage to stuff into the FEALIST. | |
256 | * loop over the FEALIST copying data into the buffer one page at | |
257 | * a time. | |
258 | */ | |
259 | cp = (char *) ealist; | |
260 | nbytes = size; | |
261 | for (i = 0; i < nblocks; i += sbi->nbperpage) { | |
262 | /* | |
263 | * Determine how many bytes for this request, and round up to | |
264 | * the nearest aggregate block size | |
265 | */ | |
266 | nb = min(PSIZE, nbytes); | |
267 | bytes_to_write = | |
268 | ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits)) | |
269 | << sb->s_blocksize_bits; | |
270 | ||
271 | if (!(mp = get_metapage(ip, blkno + i, bytes_to_write, 1))) { | |
272 | rc = -EIO; | |
273 | goto failed; | |
274 | } | |
275 | ||
276 | memcpy(mp->data, cp, nb); | |
277 | ||
278 | /* | |
279 | * We really need a way to propagate errors for | |
280 | * forced writes like this one. --hch | |
281 | * | |
282 | * (__write_metapage => release_metapage => flush_metapage) | |
283 | */ | |
284 | #ifdef _JFS_FIXME | |
285 | if ((rc = flush_metapage(mp))) { | |
286 | /* | |
287 | * the write failed -- this means that the buffer | |
288 | * is still assigned and the blocks are not being | |
289 | * used. this seems like the best error recovery | |
290 | * we can get ... | |
291 | */ | |
292 | goto failed; | |
293 | } | |
294 | #else | |
295 | flush_metapage(mp); | |
296 | #endif | |
297 | ||
298 | cp += PSIZE; | |
299 | nbytes -= nb; | |
300 | } | |
301 | ||
302 | ea->flag = DXD_EXTENT; | |
303 | DXDsize(ea, le32_to_cpu(ealist->size)); | |
304 | DXDlength(ea, nblocks); | |
305 | DXDaddress(ea, blkno); | |
306 | ||
307 | /* Free up INLINE area */ | |
308 | if (ji->ea.flag & DXD_INLINE) | |
309 | ji->mode2 |= INLINEEA; | |
310 | ||
311 | return 0; | |
312 | ||
313 | failed: | |
314 | /* Rollback quota allocation. */ | |
5dd4056d | 315 | dquot_free_block(ip, nblocks); |
1da177e4 LT |
316 | |
317 | dbFree(ip, blkno, nblocks); | |
318 | return rc; | |
319 | } | |
320 | ||
321 | /* | |
322 | * NAME: ea_read_inline | |
63f83c9f | 323 | * |
1da177e4 | 324 | * FUNCTION: Read an inlined EA into user's buffer |
63f83c9f | 325 | * |
1da177e4 LT |
326 | * PARAMETERS: |
327 | * ip - Inode pointer | |
328 | * ealist - Pointer to buffer to fill in with EA | |
329 | * | |
330 | * RETURNS: 0 | |
331 | */ | |
332 | static int ea_read_inline(struct inode *ip, struct jfs_ea_list *ealist) | |
333 | { | |
334 | struct jfs_inode_info *ji = JFS_IP(ip); | |
335 | int ea_size = sizeDXD(&ji->ea); | |
336 | ||
337 | if (ea_size == 0) { | |
338 | ealist->size = 0; | |
339 | return 0; | |
340 | } | |
341 | ||
342 | /* Sanity Check */ | |
343 | if ((sizeDXD(&ji->ea) > sizeof (ji->i_inline_ea))) | |
344 | return -EIO; | |
345 | if (le32_to_cpu(((struct jfs_ea_list *) &ji->i_inline_ea)->size) | |
346 | != ea_size) | |
347 | return -EIO; | |
348 | ||
349 | memcpy(ealist, ji->i_inline_ea, ea_size); | |
350 | return 0; | |
351 | } | |
352 | ||
353 | /* | |
354 | * NAME: ea_read | |
63f83c9f | 355 | * |
1da177e4 | 356 | * FUNCTION: copy EA data into user's buffer |
63f83c9f | 357 | * |
1da177e4 LT |
358 | * PARAMETERS: |
359 | * ip - Inode pointer | |
360 | * ealist - Pointer to buffer to fill in with EA | |
361 | * | |
362 | * NOTES: If EA is inline calls ea_read_inline() to copy EA. | |
363 | * | |
364 | * RETURNS: 0 for success; other indicates failure | |
365 | */ | |
366 | static int ea_read(struct inode *ip, struct jfs_ea_list *ealist) | |
367 | { | |
368 | struct super_block *sb = ip->i_sb; | |
369 | struct jfs_inode_info *ji = JFS_IP(ip); | |
370 | struct jfs_sb_info *sbi = JFS_SBI(sb); | |
371 | int nblocks; | |
372 | s64 blkno; | |
373 | char *cp = (char *) ealist; | |
374 | int i; | |
375 | int nbytes, nb; | |
376 | s32 bytes_to_read; | |
377 | struct metapage *mp; | |
378 | ||
379 | /* quick check for in-line EA */ | |
380 | if (ji->ea.flag & DXD_INLINE) | |
381 | return ea_read_inline(ip, ealist); | |
382 | ||
383 | nbytes = sizeDXD(&ji->ea); | |
384 | if (!nbytes) { | |
eb8630d7 | 385 | jfs_error(sb, "nbytes is 0\n"); |
1da177e4 LT |
386 | return -EIO; |
387 | } | |
388 | ||
63f83c9f | 389 | /* |
1da177e4 LT |
390 | * Figure out how many blocks were allocated when this EA list was |
391 | * originally written to disk. | |
392 | */ | |
393 | nblocks = lengthDXD(&ji->ea) << sbi->l2nbperpage; | |
394 | blkno = addressDXD(&ji->ea) << sbi->l2nbperpage; | |
395 | ||
396 | /* | |
397 | * I have found the disk blocks which were originally used to store | |
398 | * the FEALIST. now i loop over each contiguous block copying the | |
399 | * data into the buffer. | |
400 | */ | |
401 | for (i = 0; i < nblocks; i += sbi->nbperpage) { | |
402 | /* | |
403 | * Determine how many bytes for this request, and round up to | |
404 | * the nearest aggregate block size | |
405 | */ | |
406 | nb = min(PSIZE, nbytes); | |
407 | bytes_to_read = | |
408 | ((((nb + sb->s_blocksize - 1)) >> sb->s_blocksize_bits)) | |
409 | << sb->s_blocksize_bits; | |
410 | ||
411 | if (!(mp = read_metapage(ip, blkno + i, bytes_to_read, 1))) | |
412 | return -EIO; | |
413 | ||
414 | memcpy(cp, mp->data, nb); | |
415 | release_metapage(mp); | |
416 | ||
417 | cp += PSIZE; | |
418 | nbytes -= nb; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
424 | /* | |
425 | * NAME: ea_get | |
63f83c9f | 426 | * |
1da177e4 LT |
427 | * FUNCTION: Returns buffer containing existing extended attributes. |
428 | * The size of the buffer will be the larger of the existing | |
429 | * attributes size, or min_size. | |
430 | * | |
431 | * The buffer, which may be inlined in the inode or in the | |
63f83c9f DK |
432 | * page cache must be release by calling ea_release or ea_put |
433 | * | |
1da177e4 LT |
434 | * PARAMETERS: |
435 | * inode - Inode pointer | |
436 | * ea_buf - Structure to be populated with ealist and its metadata | |
437 | * min_size- minimum size of buffer to be returned | |
438 | * | |
439 | * RETURNS: 0 for success; Other indicates failure | |
440 | */ | |
441 | static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size) | |
442 | { | |
443 | struct jfs_inode_info *ji = JFS_IP(inode); | |
444 | struct super_block *sb = inode->i_sb; | |
445 | int size; | |
446 | int ea_size = sizeDXD(&ji->ea); | |
447 | int blocks_needed, current_blocks; | |
448 | s64 blkno; | |
449 | int rc; | |
450 | int quota_allocation = 0; | |
451 | ||
452 | /* When fsck.jfs clears a bad ea, it doesn't clear the size */ | |
453 | if (ji->ea.flag == 0) | |
454 | ea_size = 0; | |
455 | ||
456 | if (ea_size == 0) { | |
457 | if (min_size == 0) { | |
458 | ea_buf->flag = 0; | |
459 | ea_buf->max_size = 0; | |
460 | ea_buf->xattr = NULL; | |
461 | return 0; | |
462 | } | |
463 | if ((min_size <= sizeof (ji->i_inline_ea)) && | |
464 | (ji->mode2 & INLINEEA)) { | |
465 | ea_buf->flag = EA_INLINE | EA_NEW; | |
466 | ea_buf->max_size = sizeof (ji->i_inline_ea); | |
467 | ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea; | |
468 | DXDlength(&ea_buf->new_ea, 0); | |
469 | DXDaddress(&ea_buf->new_ea, 0); | |
470 | ea_buf->new_ea.flag = DXD_INLINE; | |
471 | DXDsize(&ea_buf->new_ea, min_size); | |
472 | return 0; | |
473 | } | |
474 | current_blocks = 0; | |
475 | } else if (ji->ea.flag & DXD_INLINE) { | |
476 | if (min_size <= sizeof (ji->i_inline_ea)) { | |
477 | ea_buf->flag = EA_INLINE; | |
478 | ea_buf->max_size = sizeof (ji->i_inline_ea); | |
479 | ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea; | |
480 | goto size_check; | |
481 | } | |
482 | current_blocks = 0; | |
483 | } else { | |
484 | if (!(ji->ea.flag & DXD_EXTENT)) { | |
eb8630d7 | 485 | jfs_error(sb, "invalid ea.flag\n"); |
1da177e4 LT |
486 | return -EIO; |
487 | } | |
488 | current_blocks = (ea_size + sb->s_blocksize - 1) >> | |
489 | sb->s_blocksize_bits; | |
490 | } | |
491 | size = max(min_size, ea_size); | |
492 | ||
493 | if (size > PSIZE) { | |
494 | /* | |
495 | * To keep the rest of the code simple. Allocate a | |
496 | * contiguous buffer to work with | |
497 | */ | |
498 | ea_buf->xattr = kmalloc(size, GFP_KERNEL); | |
499 | if (ea_buf->xattr == NULL) | |
500 | return -ENOMEM; | |
501 | ||
502 | ea_buf->flag = EA_MALLOC; | |
503 | ea_buf->max_size = (size + sb->s_blocksize - 1) & | |
504 | ~(sb->s_blocksize - 1); | |
505 | ||
506 | if (ea_size == 0) | |
507 | return 0; | |
508 | ||
509 | if ((rc = ea_read(inode, ea_buf->xattr))) { | |
510 | kfree(ea_buf->xattr); | |
511 | ea_buf->xattr = NULL; | |
512 | return rc; | |
513 | } | |
514 | goto size_check; | |
515 | } | |
516 | blocks_needed = (min_size + sb->s_blocksize - 1) >> | |
517 | sb->s_blocksize_bits; | |
518 | ||
519 | if (blocks_needed > current_blocks) { | |
520 | /* Allocate new blocks to quota. */ | |
5dd4056d CH |
521 | rc = dquot_alloc_block(inode, blocks_needed); |
522 | if (rc) | |
1da177e4 LT |
523 | return -EDQUOT; |
524 | ||
525 | quota_allocation = blocks_needed; | |
526 | ||
527 | rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed, | |
528 | &blkno); | |
529 | if (rc) | |
530 | goto clean_up; | |
531 | ||
532 | DXDlength(&ea_buf->new_ea, blocks_needed); | |
533 | DXDaddress(&ea_buf->new_ea, blkno); | |
534 | ea_buf->new_ea.flag = DXD_EXTENT; | |
535 | DXDsize(&ea_buf->new_ea, min_size); | |
536 | ||
537 | ea_buf->flag = EA_EXTENT | EA_NEW; | |
538 | ||
539 | ea_buf->mp = get_metapage(inode, blkno, | |
540 | blocks_needed << sb->s_blocksize_bits, | |
541 | 1); | |
542 | if (ea_buf->mp == NULL) { | |
543 | dbFree(inode, blkno, (s64) blocks_needed); | |
544 | rc = -EIO; | |
545 | goto clean_up; | |
546 | } | |
547 | ea_buf->xattr = ea_buf->mp->data; | |
548 | ea_buf->max_size = (min_size + sb->s_blocksize - 1) & | |
549 | ~(sb->s_blocksize - 1); | |
550 | if (ea_size == 0) | |
551 | return 0; | |
552 | if ((rc = ea_read(inode, ea_buf->xattr))) { | |
553 | discard_metapage(ea_buf->mp); | |
554 | dbFree(inode, blkno, (s64) blocks_needed); | |
555 | goto clean_up; | |
556 | } | |
557 | goto size_check; | |
558 | } | |
559 | ea_buf->flag = EA_EXTENT; | |
560 | ea_buf->mp = read_metapage(inode, addressDXD(&ji->ea), | |
561 | lengthDXD(&ji->ea) << sb->s_blocksize_bits, | |
562 | 1); | |
563 | if (ea_buf->mp == NULL) { | |
564 | rc = -EIO; | |
565 | goto clean_up; | |
566 | } | |
567 | ea_buf->xattr = ea_buf->mp->data; | |
568 | ea_buf->max_size = (ea_size + sb->s_blocksize - 1) & | |
569 | ~(sb->s_blocksize - 1); | |
570 | ||
571 | size_check: | |
572 | if (EALIST_SIZE(ea_buf->xattr) != ea_size) { | |
573 | printk(KERN_ERR "ea_get: invalid extended attribute\n"); | |
288e4d83 DK |
574 | print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 16, 1, |
575 | ea_buf->xattr, ea_size, 1); | |
1da177e4 LT |
576 | ea_release(inode, ea_buf); |
577 | rc = -EIO; | |
578 | goto clean_up; | |
579 | } | |
580 | ||
581 | return ea_size; | |
582 | ||
583 | clean_up: | |
584 | /* Rollback quota allocation */ | |
585 | if (quota_allocation) | |
5dd4056d | 586 | dquot_free_block(inode, quota_allocation); |
1da177e4 LT |
587 | |
588 | return (rc); | |
589 | } | |
590 | ||
591 | static void ea_release(struct inode *inode, struct ea_buffer *ea_buf) | |
592 | { | |
593 | if (ea_buf->flag & EA_MALLOC) | |
594 | kfree(ea_buf->xattr); | |
595 | else if (ea_buf->flag & EA_EXTENT) { | |
596 | assert(ea_buf->mp); | |
597 | release_metapage(ea_buf->mp); | |
598 | ||
599 | if (ea_buf->flag & EA_NEW) | |
600 | dbFree(inode, addressDXD(&ea_buf->new_ea), | |
601 | lengthDXD(&ea_buf->new_ea)); | |
602 | } | |
603 | } | |
604 | ||
4f4b401b DK |
605 | static int ea_put(tid_t tid, struct inode *inode, struct ea_buffer *ea_buf, |
606 | int new_size) | |
1da177e4 LT |
607 | { |
608 | struct jfs_inode_info *ji = JFS_IP(inode); | |
609 | unsigned long old_blocks, new_blocks; | |
610 | int rc = 0; | |
1da177e4 LT |
611 | |
612 | if (new_size == 0) { | |
613 | ea_release(inode, ea_buf); | |
614 | ea_buf = NULL; | |
615 | } else if (ea_buf->flag & EA_INLINE) { | |
616 | assert(new_size <= sizeof (ji->i_inline_ea)); | |
617 | ji->mode2 &= ~INLINEEA; | |
618 | ea_buf->new_ea.flag = DXD_INLINE; | |
619 | DXDsize(&ea_buf->new_ea, new_size); | |
620 | DXDaddress(&ea_buf->new_ea, 0); | |
621 | DXDlength(&ea_buf->new_ea, 0); | |
622 | } else if (ea_buf->flag & EA_MALLOC) { | |
623 | rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea); | |
624 | kfree(ea_buf->xattr); | |
625 | } else if (ea_buf->flag & EA_NEW) { | |
626 | /* We have already allocated a new dxd */ | |
627 | flush_metapage(ea_buf->mp); | |
628 | } else { | |
629 | /* ->xattr must point to original ea's metapage */ | |
630 | rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea); | |
631 | discard_metapage(ea_buf->mp); | |
632 | } | |
633 | if (rc) | |
634 | return rc; | |
635 | ||
1da177e4 LT |
636 | old_blocks = new_blocks = 0; |
637 | ||
638 | if (ji->ea.flag & DXD_EXTENT) { | |
639 | invalidate_dxd_metapages(inode, ji->ea); | |
640 | old_blocks = lengthDXD(&ji->ea); | |
641 | } | |
642 | ||
643 | if (ea_buf) { | |
644 | txEA(tid, inode, &ji->ea, &ea_buf->new_ea); | |
645 | if (ea_buf->new_ea.flag & DXD_EXTENT) { | |
646 | new_blocks = lengthDXD(&ea_buf->new_ea); | |
647 | if (ji->ea.flag & DXD_INLINE) | |
648 | ji->mode2 |= INLINEEA; | |
649 | } | |
650 | ji->ea = ea_buf->new_ea; | |
651 | } else { | |
652 | txEA(tid, inode, &ji->ea, NULL); | |
653 | if (ji->ea.flag & DXD_INLINE) | |
654 | ji->mode2 |= INLINEEA; | |
655 | ji->ea.flag = 0; | |
656 | ji->ea.size = 0; | |
657 | } | |
658 | ||
659 | /* If old blocks exist, they must be removed from quota allocation. */ | |
660 | if (old_blocks) | |
5dd4056d | 661 | dquot_free_block(inode, old_blocks); |
1da177e4 LT |
662 | |
663 | inode->i_ctime = CURRENT_TIME; | |
1da177e4 | 664 | |
4f4b401b | 665 | return 0; |
1da177e4 LT |
666 | } |
667 | ||
d572b879 DK |
668 | /* |
669 | * Most of the permission checking is done by xattr_permission in the vfs. | |
d572b879 DK |
670 | * We also need to verify that this is a namespace that we recognize. |
671 | */ | |
1da177e4 LT |
672 | static int can_set_xattr(struct inode *inode, const char *name, |
673 | const void *value, size_t value_len) | |
674 | { | |
aca0fa34 DK |
675 | if (!strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN)) { |
676 | /* | |
677 | * This makes sure that we aren't trying to set an | |
678 | * attribute in a different namespace by prefixing it | |
679 | * with "os2." | |
680 | */ | |
681 | if (is_known_namespace(name + XATTR_OS2_PREFIX_LEN)) | |
2cc6a5a0 | 682 | return -EOPNOTSUPP; |
aca0fa34 DK |
683 | return 0; |
684 | } | |
685 | ||
44a0033f CH |
686 | /* |
687 | * Don't allow setting an attribute in an unknown namespace. | |
688 | */ | |
689 | if (strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) && | |
690 | strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) && | |
aca0fa34 | 691 | strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) |
1da177e4 LT |
692 | return -EOPNOTSUPP; |
693 | ||
44a0033f | 694 | return 0; |
1da177e4 LT |
695 | } |
696 | ||
4f4b401b DK |
697 | int __jfs_setxattr(tid_t tid, struct inode *inode, const char *name, |
698 | const void *value, size_t value_len, int flags) | |
1da177e4 LT |
699 | { |
700 | struct jfs_ea_list *ealist; | |
701 | struct jfs_ea *ea, *old_ea = NULL, *next_ea = NULL; | |
702 | struct ea_buffer ea_buf; | |
703 | int old_ea_size = 0; | |
704 | int xattr_size; | |
705 | int new_size; | |
706 | int namelen = strlen(name); | |
707 | char *os2name = NULL; | |
708 | int found = 0; | |
709 | int rc; | |
710 | int length; | |
711 | ||
1da177e4 LT |
712 | if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { |
713 | os2name = kmalloc(namelen - XATTR_OS2_PREFIX_LEN + 1, | |
714 | GFP_KERNEL); | |
715 | if (!os2name) | |
716 | return -ENOMEM; | |
717 | strcpy(os2name, name + XATTR_OS2_PREFIX_LEN); | |
718 | name = os2name; | |
719 | namelen -= XATTR_OS2_PREFIX_LEN; | |
720 | } | |
721 | ||
722 | down_write(&JFS_IP(inode)->xattr_sem); | |
723 | ||
724 | xattr_size = ea_get(inode, &ea_buf, 0); | |
725 | if (xattr_size < 0) { | |
726 | rc = xattr_size; | |
727 | goto out; | |
728 | } | |
729 | ||
730 | again: | |
731 | ealist = (struct jfs_ea_list *) ea_buf.xattr; | |
732 | new_size = sizeof (struct jfs_ea_list); | |
733 | ||
734 | if (xattr_size) { | |
735 | for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); | |
736 | ea = NEXT_EA(ea)) { | |
737 | if ((namelen == ea->namelen) && | |
738 | (memcmp(name, ea->name, namelen) == 0)) { | |
739 | found = 1; | |
740 | if (flags & XATTR_CREATE) { | |
741 | rc = -EEXIST; | |
742 | goto release; | |
743 | } | |
744 | old_ea = ea; | |
745 | old_ea_size = EA_SIZE(ea); | |
746 | next_ea = NEXT_EA(ea); | |
747 | } else | |
748 | new_size += EA_SIZE(ea); | |
749 | } | |
750 | } | |
751 | ||
752 | if (!found) { | |
753 | if (flags & XATTR_REPLACE) { | |
754 | rc = -ENODATA; | |
755 | goto release; | |
756 | } | |
757 | if (value == NULL) { | |
758 | rc = 0; | |
759 | goto release; | |
760 | } | |
761 | } | |
762 | if (value) | |
763 | new_size += sizeof (struct jfs_ea) + namelen + 1 + value_len; | |
764 | ||
765 | if (new_size > ea_buf.max_size) { | |
766 | /* | |
767 | * We need to allocate more space for merged ea list. | |
768 | * We should only have loop to again: once. | |
769 | */ | |
770 | ea_release(inode, &ea_buf); | |
771 | xattr_size = ea_get(inode, &ea_buf, new_size); | |
772 | if (xattr_size < 0) { | |
773 | rc = xattr_size; | |
774 | goto out; | |
775 | } | |
776 | goto again; | |
777 | } | |
778 | ||
779 | /* Remove old ea of the same name */ | |
780 | if (found) { | |
781 | /* number of bytes following target EA */ | |
782 | length = (char *) END_EALIST(ealist) - (char *) next_ea; | |
783 | if (length > 0) | |
784 | memmove(old_ea, next_ea, length); | |
785 | xattr_size -= old_ea_size; | |
786 | } | |
787 | ||
788 | /* Add new entry to the end */ | |
789 | if (value) { | |
790 | if (xattr_size == 0) | |
791 | /* Completely new ea list */ | |
792 | xattr_size = sizeof (struct jfs_ea_list); | |
793 | ||
0439e091 JL |
794 | /* |
795 | * The size of EA value is limitted by on-disk format up to | |
796 | * __le16, there would be an overflow if the size is equal | |
797 | * to XATTR_SIZE_MAX (65536). In order to avoid this issue, | |
798 | * we can pre-checkup the value size against USHRT_MAX, and | |
799 | * return -E2BIG in this case, which is consistent with the | |
800 | * VFS setxattr interface. | |
801 | */ | |
802 | if (value_len >= USHRT_MAX) { | |
803 | rc = -E2BIG; | |
804 | goto release; | |
805 | } | |
806 | ||
1da177e4 LT |
807 | ea = (struct jfs_ea *) ((char *) ealist + xattr_size); |
808 | ea->flag = 0; | |
809 | ea->namelen = namelen; | |
810 | ea->valuelen = (cpu_to_le16(value_len)); | |
811 | memcpy(ea->name, name, namelen); | |
812 | ea->name[namelen] = 0; | |
813 | if (value_len) | |
814 | memcpy(&ea->name[namelen + 1], value, value_len); | |
815 | xattr_size += EA_SIZE(ea); | |
816 | } | |
817 | ||
818 | /* DEBUG - If we did this right, these number match */ | |
819 | if (xattr_size != new_size) { | |
820 | printk(KERN_ERR | |
0439e091 | 821 | "__jfs_setxattr: xattr_size = %d, new_size = %d\n", |
1da177e4 LT |
822 | xattr_size, new_size); |
823 | ||
824 | rc = -EINVAL; | |
825 | goto release; | |
826 | } | |
827 | ||
828 | /* | |
829 | * If we're left with an empty list, there's no ea | |
830 | */ | |
831 | if (new_size == sizeof (struct jfs_ea_list)) | |
832 | new_size = 0; | |
833 | ||
834 | ealist->size = cpu_to_le32(new_size); | |
835 | ||
4f4b401b | 836 | rc = ea_put(tid, inode, &ea_buf, new_size); |
1da177e4 LT |
837 | |
838 | goto out; | |
839 | release: | |
840 | ea_release(inode, &ea_buf); | |
841 | out: | |
842 | up_write(&JFS_IP(inode)->xattr_sem); | |
843 | ||
259692bd | 844 | kfree(os2name); |
1da177e4 LT |
845 | |
846 | return rc; | |
847 | } | |
848 | ||
849 | int jfs_setxattr(struct dentry *dentry, const char *name, const void *value, | |
850 | size_t value_len, int flags) | |
851 | { | |
2b0143b5 | 852 | struct inode *inode = d_inode(dentry); |
4f4b401b DK |
853 | struct jfs_inode_info *ji = JFS_IP(inode); |
854 | int rc; | |
855 | tid_t tid; | |
856 | ||
2cc6a5a0 CH |
857 | /* |
858 | * If this is a request for a synthetic attribute in the system.* | |
859 | * namespace use the generic infrastructure to resolve a handler | |
860 | * for it via sb->s_xattr. | |
861 | */ | |
862 | if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) | |
863 | return generic_setxattr(dentry, name, value, value_len, flags); | |
864 | ||
c18f7b51 DK |
865 | if ((rc = can_set_xattr(inode, name, value, value_len))) |
866 | return rc; | |
867 | ||
1da177e4 LT |
868 | if (value == NULL) { /* empty EA, do not remove */ |
869 | value = ""; | |
870 | value_len = 0; | |
871 | } | |
872 | ||
4f4b401b | 873 | tid = txBegin(inode->i_sb, 0); |
1de87444 | 874 | mutex_lock(&ji->commit_mutex); |
2b0143b5 | 875 | rc = __jfs_setxattr(tid, d_inode(dentry), name, value, value_len, |
4f4b401b DK |
876 | flags); |
877 | if (!rc) | |
878 | rc = txCommit(tid, 1, &inode, 0); | |
879 | txEnd(tid); | |
1de87444 | 880 | mutex_unlock(&ji->commit_mutex); |
4f4b401b DK |
881 | |
882 | return rc; | |
1da177e4 LT |
883 | } |
884 | ||
1da177e4 LT |
885 | ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data, |
886 | size_t buf_size) | |
887 | { | |
888 | struct jfs_ea_list *ealist; | |
889 | struct jfs_ea *ea; | |
890 | struct ea_buffer ea_buf; | |
891 | int xattr_size; | |
892 | ssize_t size; | |
893 | int namelen = strlen(name); | |
1da177e4 LT |
894 | char *value; |
895 | ||
1da177e4 LT |
896 | down_read(&JFS_IP(inode)->xattr_sem); |
897 | ||
898 | xattr_size = ea_get(inode, &ea_buf, 0); | |
899 | ||
900 | if (xattr_size < 0) { | |
901 | size = xattr_size; | |
902 | goto out; | |
903 | } | |
904 | ||
905 | if (xattr_size == 0) | |
906 | goto not_found; | |
907 | ||
908 | ealist = (struct jfs_ea_list *) ea_buf.xattr; | |
909 | ||
910 | /* Find the named attribute */ | |
911 | for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) | |
912 | if ((namelen == ea->namelen) && | |
913 | memcmp(name, ea->name, namelen) == 0) { | |
914 | /* Found it */ | |
915 | size = le16_to_cpu(ea->valuelen); | |
916 | if (!data) | |
917 | goto release; | |
918 | else if (size > buf_size) { | |
919 | size = -ERANGE; | |
920 | goto release; | |
921 | } | |
922 | value = ((char *) &ea->name) + ea->namelen + 1; | |
923 | memcpy(data, value, size); | |
924 | goto release; | |
925 | } | |
926 | not_found: | |
927 | size = -ENODATA; | |
928 | release: | |
929 | ea_release(inode, &ea_buf); | |
930 | out: | |
931 | up_read(&JFS_IP(inode)->xattr_sem); | |
932 | ||
1da177e4 LT |
933 | return size; |
934 | } | |
935 | ||
936 | ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data, | |
937 | size_t buf_size) | |
938 | { | |
939 | int err; | |
940 | ||
2cc6a5a0 CH |
941 | /* |
942 | * If this is a request for a synthetic attribute in the system.* | |
943 | * namespace use the generic infrastructure to resolve a handler | |
944 | * for it via sb->s_xattr. | |
945 | */ | |
946 | if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) | |
947 | return generic_getxattr(dentry, name, data, buf_size); | |
948 | ||
aca0fa34 DK |
949 | if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { |
950 | /* | |
951 | * skip past "os2." prefix | |
952 | */ | |
953 | name += XATTR_OS2_PREFIX_LEN; | |
954 | /* | |
955 | * Don't allow retrieving properly prefixed attributes | |
956 | * by prepending them with "os2." | |
957 | */ | |
958 | if (is_known_namespace(name)) | |
959 | return -EOPNOTSUPP; | |
960 | } | |
961 | ||
2b0143b5 | 962 | err = __jfs_getxattr(d_inode(dentry), name, data, buf_size); |
1da177e4 LT |
963 | |
964 | return err; | |
965 | } | |
966 | ||
967 | /* | |
968 | * No special permissions are needed to list attributes except for trusted.* | |
969 | */ | |
970 | static inline int can_list(struct jfs_ea *ea) | |
971 | { | |
972 | return (strncmp(ea->name, XATTR_TRUSTED_PREFIX, | |
973 | XATTR_TRUSTED_PREFIX_LEN) || | |
974 | capable(CAP_SYS_ADMIN)); | |
975 | } | |
976 | ||
977 | ssize_t jfs_listxattr(struct dentry * dentry, char *data, size_t buf_size) | |
978 | { | |
2b0143b5 | 979 | struct inode *inode = d_inode(dentry); |
1da177e4 LT |
980 | char *buffer; |
981 | ssize_t size = 0; | |
982 | int xattr_size; | |
983 | struct jfs_ea_list *ealist; | |
984 | struct jfs_ea *ea; | |
985 | struct ea_buffer ea_buf; | |
986 | ||
987 | down_read(&JFS_IP(inode)->xattr_sem); | |
988 | ||
989 | xattr_size = ea_get(inode, &ea_buf, 0); | |
990 | if (xattr_size < 0) { | |
991 | size = xattr_size; | |
992 | goto out; | |
993 | } | |
994 | ||
995 | if (xattr_size == 0) | |
996 | goto release; | |
997 | ||
998 | ealist = (struct jfs_ea_list *) ea_buf.xattr; | |
999 | ||
1000 | /* compute required size of list */ | |
1001 | for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) { | |
63f83c9f | 1002 | if (can_list(ea)) |
1da177e4 LT |
1003 | size += name_size(ea) + 1; |
1004 | } | |
1005 | ||
1006 | if (!data) | |
1007 | goto release; | |
1008 | ||
1009 | if (size > buf_size) { | |
1010 | size = -ERANGE; | |
1011 | goto release; | |
1012 | } | |
1013 | ||
1014 | /* Copy attribute names to buffer */ | |
1015 | buffer = data; | |
1016 | for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) { | |
63f83c9f | 1017 | if (can_list(ea)) { |
1da177e4 LT |
1018 | int namelen = copy_name(buffer, ea); |
1019 | buffer += namelen + 1; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | release: | |
1024 | ea_release(inode, &ea_buf); | |
1025 | out: | |
1026 | up_read(&JFS_IP(inode)->xattr_sem); | |
1027 | return size; | |
1028 | } | |
1029 | ||
1030 | int jfs_removexattr(struct dentry *dentry, const char *name) | |
1031 | { | |
2b0143b5 | 1032 | struct inode *inode = d_inode(dentry); |
4f4b401b DK |
1033 | struct jfs_inode_info *ji = JFS_IP(inode); |
1034 | int rc; | |
1035 | tid_t tid; | |
1036 | ||
2cc6a5a0 CH |
1037 | /* |
1038 | * If this is a request for a synthetic attribute in the system.* | |
1039 | * namespace use the generic infrastructure to resolve a handler | |
1040 | * for it via sb->s_xattr. | |
1041 | */ | |
1042 | if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) | |
1043 | return generic_removexattr(dentry, name); | |
1044 | ||
c18f7b51 DK |
1045 | if ((rc = can_set_xattr(inode, name, NULL, 0))) |
1046 | return rc; | |
1047 | ||
4f4b401b | 1048 | tid = txBegin(inode->i_sb, 0); |
1de87444 | 1049 | mutex_lock(&ji->commit_mutex); |
2b0143b5 | 1050 | rc = __jfs_setxattr(tid, d_inode(dentry), name, NULL, 0, XATTR_REPLACE); |
4f4b401b DK |
1051 | if (!rc) |
1052 | rc = txCommit(tid, 1, &inode, 0); | |
1053 | txEnd(tid); | |
1de87444 | 1054 | mutex_unlock(&ji->commit_mutex); |
4f4b401b DK |
1055 | |
1056 | return rc; | |
1da177e4 | 1057 | } |
1d15b10f | 1058 | |
2cc6a5a0 CH |
1059 | /* |
1060 | * List of handlers for synthetic system.* attributes. All real ondisk | |
1061 | * attributes are handled directly. | |
1062 | */ | |
1063 | const struct xattr_handler *jfs_xattr_handlers[] = { | |
c18f7b51 | 1064 | #ifdef CONFIG_JFS_POSIX_ACL |
2cc6a5a0 CH |
1065 | &posix_acl_access_xattr_handler, |
1066 | &posix_acl_default_xattr_handler, | |
1067 | #endif | |
1068 | NULL, | |
1069 | }; | |
1070 | ||
1071 | ||
1d15b10f | 1072 | #ifdef CONFIG_JFS_SECURITY |
21d1101f DK |
1073 | static int jfs_initxattrs(struct inode *inode, const struct xattr *xattr_array, |
1074 | void *fs_info) | |
1d15b10f | 1075 | { |
9d8f13ba MZ |
1076 | const struct xattr *xattr; |
1077 | tid_t *tid = fs_info; | |
1d15b10f | 1078 | char *name; |
9d8f13ba MZ |
1079 | int err = 0; |
1080 | ||
1081 | for (xattr = xattr_array; xattr->name != NULL; xattr++) { | |
1082 | name = kmalloc(XATTR_SECURITY_PREFIX_LEN + | |
1083 | strlen(xattr->name) + 1, GFP_NOFS); | |
1084 | if (!name) { | |
1085 | err = -ENOMEM; | |
1086 | break; | |
1087 | } | |
1088 | strcpy(name, XATTR_SECURITY_PREFIX); | |
1089 | strcpy(name + XATTR_SECURITY_PREFIX_LEN, xattr->name); | |
1090 | ||
1091 | err = __jfs_setxattr(*tid, inode, name, | |
1092 | xattr->value, xattr->value_len, 0); | |
1093 | kfree(name); | |
1094 | if (err < 0) | |
1095 | break; | |
1d15b10f | 1096 | } |
9d8f13ba MZ |
1097 | return err; |
1098 | } | |
1d15b10f | 1099 | |
9d8f13ba MZ |
1100 | int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir, |
1101 | const struct qstr *qstr) | |
1102 | { | |
1103 | return security_inode_init_security(inode, dir, qstr, | |
1104 | &jfs_initxattrs, &tid); | |
1d15b10f DK |
1105 | } |
1106 | #endif |