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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. | |
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 | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
b3b94faa DT |
10 | #include <linux/slab.h> |
11 | #include <linux/spinlock.h> | |
12 | #include <linux/completion.h> | |
13 | #include <linux/buffer_head.h> | |
14 | #include <linux/xattr.h> | |
5c676f6d | 15 | #include <linux/gfs2_ondisk.h> |
b3b94faa DT |
16 | #include <asm/uaccess.h> |
17 | ||
18 | #include "gfs2.h" | |
5c676f6d | 19 | #include "incore.h" |
b3b94faa | 20 | #include "acl.h" |
307cf6e6 | 21 | #include "xattr.h" |
b3b94faa DT |
22 | #include "glock.h" |
23 | #include "inode.h" | |
24 | #include "meta_io.h" | |
25 | #include "quota.h" | |
26 | #include "rgrp.h" | |
27 | #include "trans.h" | |
5c676f6d | 28 | #include "util.h" |
b3b94faa DT |
29 | |
30 | /** | |
31 | * ea_calc_size - returns the acutal number of bytes the request will take up | |
32 | * (not counting any unstuffed data blocks) | |
33 | * @sdp: | |
34 | * @er: | |
35 | * @size: | |
36 | * | |
37 | * Returns: 1 if the EA should be stuffed | |
38 | */ | |
39 | ||
40b78a32 | 40 | static int ea_calc_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize, |
b3b94faa DT |
41 | unsigned int *size) |
42 | { | |
40b78a32 SW |
43 | unsigned int jbsize = sdp->sd_jbsize; |
44 | ||
45 | /* Stuffed */ | |
46 | *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + dsize, 8); | |
47 | ||
48 | if (*size <= jbsize) | |
b3b94faa DT |
49 | return 1; |
50 | ||
40b78a32 SW |
51 | /* Unstuffed */ |
52 | *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + | |
53 | (sizeof(__be64) * DIV_ROUND_UP(dsize, jbsize)), 8); | |
b3b94faa DT |
54 | |
55 | return 0; | |
56 | } | |
57 | ||
40b78a32 | 58 | static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize) |
b3b94faa DT |
59 | { |
60 | unsigned int size; | |
61 | ||
40b78a32 | 62 | if (dsize > GFS2_EA_MAX_DATA_LEN) |
b3b94faa DT |
63 | return -ERANGE; |
64 | ||
40b78a32 | 65 | ea_calc_size(sdp, nsize, dsize, &size); |
b3b94faa DT |
66 | |
67 | /* This can only happen with 512 byte blocks */ | |
68 | if (size > sdp->sd_jbsize) | |
69 | return -ERANGE; | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
cca195c5 | 74 | typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh, |
b3b94faa | 75 | struct gfs2_ea_header *ea, |
cca195c5 | 76 | struct gfs2_ea_header *prev, void *private); |
b3b94faa DT |
77 | |
78 | static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh, | |
79 | ea_call_t ea_call, void *data) | |
80 | { | |
81 | struct gfs2_ea_header *ea, *prev = NULL; | |
82 | int error = 0; | |
83 | ||
feaa7bba | 84 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_EA)) |
b3b94faa DT |
85 | return -EIO; |
86 | ||
87 | for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) { | |
88 | if (!GFS2_EA_REC_LEN(ea)) | |
89 | goto fail; | |
cca195c5 SW |
90 | if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <= |
91 | bh->b_data + bh->b_size)) | |
b3b94faa DT |
92 | goto fail; |
93 | if (!GFS2_EATYPE_VALID(ea->ea_type)) | |
94 | goto fail; | |
95 | ||
96 | error = ea_call(ip, bh, ea, prev, data); | |
97 | if (error) | |
98 | return error; | |
99 | ||
100 | if (GFS2_EA_IS_LAST(ea)) { | |
101 | if ((char *)GFS2_EA2NEXT(ea) != | |
102 | bh->b_data + bh->b_size) | |
103 | goto fail; | |
104 | break; | |
105 | } | |
106 | } | |
107 | ||
108 | return error; | |
109 | ||
a91ea69f | 110 | fail: |
b3b94faa DT |
111 | gfs2_consist_inode(ip); |
112 | return -EIO; | |
113 | } | |
114 | ||
115 | static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data) | |
116 | { | |
117 | struct buffer_head *bh, *eabh; | |
b44b84d7 | 118 | __be64 *eablk, *end; |
b3b94faa DT |
119 | int error; |
120 | ||
3767ac21 | 121 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh); |
b3b94faa DT |
122 | if (error) |
123 | return error; | |
124 | ||
383f01fb | 125 | if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) { |
b3b94faa DT |
126 | error = ea_foreach_i(ip, bh, ea_call, data); |
127 | goto out; | |
128 | } | |
129 | ||
feaa7bba | 130 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_IN)) { |
b3b94faa DT |
131 | error = -EIO; |
132 | goto out; | |
133 | } | |
134 | ||
b44b84d7 | 135 | eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header)); |
feaa7bba | 136 | end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs; |
b3b94faa DT |
137 | |
138 | for (; eablk < end; eablk++) { | |
cd915493 | 139 | u64 bn; |
b3b94faa DT |
140 | |
141 | if (!*eablk) | |
142 | break; | |
143 | bn = be64_to_cpu(*eablk); | |
144 | ||
7276b3b0 | 145 | error = gfs2_meta_read(ip->i_gl, bn, DIO_WAIT, &eabh); |
b3b94faa DT |
146 | if (error) |
147 | break; | |
148 | error = ea_foreach_i(ip, eabh, ea_call, data); | |
149 | brelse(eabh); | |
150 | if (error) | |
151 | break; | |
152 | } | |
a91ea69f | 153 | out: |
b3b94faa | 154 | brelse(bh); |
b3b94faa DT |
155 | return error; |
156 | } | |
157 | ||
158 | struct ea_find { | |
40b78a32 SW |
159 | int type; |
160 | const char *name; | |
161 | size_t namel; | |
b3b94faa DT |
162 | struct gfs2_ea_location *ef_el; |
163 | }; | |
164 | ||
165 | static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh, | |
166 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
167 | void *private) | |
168 | { | |
169 | struct ea_find *ef = private; | |
b3b94faa DT |
170 | |
171 | if (ea->ea_type == GFS2_EATYPE_UNUSED) | |
172 | return 0; | |
173 | ||
40b78a32 SW |
174 | if (ea->ea_type == ef->type) { |
175 | if (ea->ea_name_len == ef->namel && | |
176 | !memcmp(GFS2_EA2NAME(ea), ef->name, ea->ea_name_len)) { | |
b3b94faa DT |
177 | struct gfs2_ea_location *el = ef->ef_el; |
178 | get_bh(bh); | |
179 | el->el_bh = bh; | |
180 | el->el_ea = ea; | |
181 | el->el_prev = prev; | |
182 | return 1; | |
183 | } | |
184 | } | |
185 | ||
b3b94faa DT |
186 | return 0; |
187 | } | |
188 | ||
479c427d SW |
189 | static int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name, |
190 | struct gfs2_ea_location *el) | |
b3b94faa DT |
191 | { |
192 | struct ea_find ef; | |
193 | int error; | |
194 | ||
40b78a32 SW |
195 | ef.type = type; |
196 | ef.name = name; | |
197 | ef.namel = strlen(name); | |
b3b94faa DT |
198 | ef.ef_el = el; |
199 | ||
200 | memset(el, 0, sizeof(struct gfs2_ea_location)); | |
201 | ||
202 | error = ea_foreach(ip, ea_find_i, &ef); | |
203 | if (error > 0) | |
204 | return 0; | |
205 | ||
206 | return error; | |
207 | } | |
208 | ||
209 | /** | |
210 | * ea_dealloc_unstuffed - | |
211 | * @ip: | |
212 | * @bh: | |
213 | * @ea: | |
214 | * @prev: | |
215 | * @private: | |
216 | * | |
217 | * Take advantage of the fact that all unstuffed blocks are | |
218 | * allocated from the same RG. But watch, this may not always | |
219 | * be true. | |
220 | * | |
221 | * Returns: errno | |
222 | */ | |
223 | ||
224 | static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, | |
225 | struct gfs2_ea_header *ea, | |
226 | struct gfs2_ea_header *prev, void *private) | |
227 | { | |
228 | int *leave = private; | |
feaa7bba | 229 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
230 | struct gfs2_rgrpd *rgd; |
231 | struct gfs2_holder rg_gh; | |
232 | struct buffer_head *dibh; | |
b44b84d7 AV |
233 | __be64 *dataptrs; |
234 | u64 bn = 0; | |
cd915493 | 235 | u64 bstart = 0; |
b3b94faa DT |
236 | unsigned int blen = 0; |
237 | unsigned int blks = 0; | |
238 | unsigned int x; | |
239 | int error; | |
240 | ||
241 | if (GFS2_EA_IS_STUFFED(ea)) | |
242 | return 0; | |
243 | ||
244 | dataptrs = GFS2_EA2DATAPTRS(ea); | |
cca195c5 | 245 | for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) { |
b3b94faa DT |
246 | if (*dataptrs) { |
247 | blks++; | |
248 | bn = be64_to_cpu(*dataptrs); | |
249 | } | |
cca195c5 | 250 | } |
b3b94faa DT |
251 | if (!blks) |
252 | return 0; | |
253 | ||
254 | rgd = gfs2_blk2rgrpd(sdp, bn); | |
255 | if (!rgd) { | |
256 | gfs2_consist_inode(ip); | |
257 | return -EIO; | |
258 | } | |
259 | ||
260 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh); | |
261 | if (error) | |
262 | return error; | |
263 | ||
bb8d8a6f | 264 | error = gfs2_trans_begin(sdp, rgd->rd_length + RES_DINODE + |
cca195c5 | 265 | RES_EATTR + RES_STATFS + RES_QUOTA, blks); |
b3b94faa DT |
266 | if (error) |
267 | goto out_gunlock; | |
268 | ||
d4e9c4c3 | 269 | gfs2_trans_add_bh(ip->i_gl, bh, 1); |
b3b94faa DT |
270 | |
271 | dataptrs = GFS2_EA2DATAPTRS(ea); | |
272 | for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) { | |
273 | if (!*dataptrs) | |
274 | break; | |
275 | bn = be64_to_cpu(*dataptrs); | |
276 | ||
277 | if (bstart + blen == bn) | |
278 | blen++; | |
279 | else { | |
280 | if (bstart) | |
281 | gfs2_free_meta(ip, bstart, blen); | |
282 | bstart = bn; | |
283 | blen = 1; | |
284 | } | |
285 | ||
286 | *dataptrs = 0; | |
77658aad | 287 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa DT |
288 | } |
289 | if (bstart) | |
290 | gfs2_free_meta(ip, bstart, blen); | |
291 | ||
292 | if (prev && !leave) { | |
cd915493 | 293 | u32 len; |
b3b94faa DT |
294 | |
295 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
296 | prev->ea_rec_len = cpu_to_be32(len); | |
297 | ||
298 | if (GFS2_EA_IS_LAST(ea)) | |
299 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
300 | } else { | |
301 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
302 | ea->ea_num_ptrs = 0; | |
303 | } | |
304 | ||
305 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
306 | if (!error) { | |
4bd91ba1 | 307 | ip->i_inode.i_ctime = CURRENT_TIME; |
d4e9c4c3 | 308 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 309 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
310 | brelse(dibh); |
311 | } | |
312 | ||
313 | gfs2_trans_end(sdp); | |
314 | ||
a91ea69f | 315 | out_gunlock: |
b3b94faa | 316 | gfs2_glock_dq_uninit(&rg_gh); |
b3b94faa DT |
317 | return error; |
318 | } | |
319 | ||
320 | static int ea_remove_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, | |
321 | struct gfs2_ea_header *ea, | |
322 | struct gfs2_ea_header *prev, int leave) | |
323 | { | |
324 | struct gfs2_alloc *al; | |
325 | int error; | |
326 | ||
327 | al = gfs2_alloc_get(ip); | |
182fe5ab CG |
328 | if (!al) |
329 | return -ENOMEM; | |
b3b94faa DT |
330 | |
331 | error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
332 | if (error) | |
333 | goto out_alloc; | |
334 | ||
cca195c5 | 335 | error = ea_dealloc_unstuffed(ip, bh, ea, prev, (leave) ? &error : NULL); |
b3b94faa | 336 | |
b3b94faa | 337 | gfs2_quota_unhold(ip); |
a91ea69f | 338 | out_alloc: |
b3b94faa | 339 | gfs2_alloc_put(ip); |
b3b94faa DT |
340 | return error; |
341 | } | |
342 | ||
b3b94faa DT |
343 | struct ea_list { |
344 | struct gfs2_ea_request *ei_er; | |
345 | unsigned int ei_size; | |
346 | }; | |
347 | ||
40b78a32 SW |
348 | static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea) |
349 | { | |
350 | switch (ea->ea_type) { | |
351 | case GFS2_EATYPE_USR: | |
352 | return 5 + ea->ea_name_len + 1; | |
353 | case GFS2_EATYPE_SYS: | |
354 | return 7 + ea->ea_name_len + 1; | |
355 | case GFS2_EATYPE_SECURITY: | |
356 | return 9 + ea->ea_name_len + 1; | |
357 | default: | |
358 | return 0; | |
359 | } | |
360 | } | |
361 | ||
b3b94faa DT |
362 | static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh, |
363 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
364 | void *private) | |
365 | { | |
366 | struct ea_list *ei = private; | |
367 | struct gfs2_ea_request *er = ei->ei_er; | |
639b6d79 | 368 | unsigned int ea_size = gfs2_ea_strlen(ea); |
b3b94faa DT |
369 | |
370 | if (ea->ea_type == GFS2_EATYPE_UNUSED) | |
371 | return 0; | |
372 | ||
373 | if (er->er_data_len) { | |
01eb7c07 SW |
374 | char *prefix = NULL; |
375 | unsigned int l = 0; | |
b3b94faa DT |
376 | char c = 0; |
377 | ||
378 | if (ei->ei_size + ea_size > er->er_data_len) | |
379 | return -ERANGE; | |
380 | ||
639b6d79 RH |
381 | switch (ea->ea_type) { |
382 | case GFS2_EATYPE_USR: | |
b3b94faa DT |
383 | prefix = "user."; |
384 | l = 5; | |
639b6d79 RH |
385 | break; |
386 | case GFS2_EATYPE_SYS: | |
b3b94faa DT |
387 | prefix = "system."; |
388 | l = 7; | |
639b6d79 RH |
389 | break; |
390 | case GFS2_EATYPE_SECURITY: | |
391 | prefix = "security."; | |
392 | l = 9; | |
393 | break; | |
b3b94faa DT |
394 | } |
395 | ||
01eb7c07 SW |
396 | BUG_ON(l == 0); |
397 | ||
90cdd208 SW |
398 | memcpy(er->er_data + ei->ei_size, prefix, l); |
399 | memcpy(er->er_data + ei->ei_size + l, GFS2_EA2NAME(ea), | |
b3b94faa | 400 | ea->ea_name_len); |
90cdd208 | 401 | memcpy(er->er_data + ei->ei_size + ea_size - 1, &c, 1); |
b3b94faa DT |
402 | } |
403 | ||
404 | ei->ei_size += ea_size; | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
409 | /** | |
40b78a32 SW |
410 | * gfs2_listxattr - List gfs2 extended attributes |
411 | * @dentry: The dentry whose inode we are interested in | |
412 | * @buffer: The buffer to write the results | |
413 | * @size: The size of the buffer | |
b3b94faa DT |
414 | * |
415 | * Returns: actual size of data on success, -errno on error | |
416 | */ | |
417 | ||
40b78a32 | 418 | ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size) |
b3b94faa | 419 | { |
40b78a32 SW |
420 | struct gfs2_inode *ip = GFS2_I(dentry->d_inode); |
421 | struct gfs2_ea_request er; | |
b3b94faa DT |
422 | struct gfs2_holder i_gh; |
423 | int error; | |
424 | ||
40b78a32 SW |
425 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
426 | if (size) { | |
427 | er.er_data = buffer; | |
428 | er.er_data_len = size; | |
b3b94faa DT |
429 | } |
430 | ||
cca195c5 | 431 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh); |
b3b94faa DT |
432 | if (error) |
433 | return error; | |
434 | ||
3767ac21 | 435 | if (ip->i_eattr) { |
40b78a32 | 436 | struct ea_list ei = { .ei_er = &er, .ei_size = 0 }; |
b3b94faa DT |
437 | |
438 | error = ea_foreach(ip, ea_list_i, &ei); | |
439 | if (!error) | |
440 | error = ei.ei_size; | |
441 | } | |
442 | ||
443 | gfs2_glock_dq_uninit(&i_gh); | |
444 | ||
445 | return error; | |
446 | } | |
447 | ||
448 | /** | |
449 | * ea_get_unstuffed - actually copies the unstuffed data into the | |
450 | * request buffer | |
cca195c5 SW |
451 | * @ip: The GFS2 inode |
452 | * @ea: The extended attribute header structure | |
453 | * @data: The data to be copied | |
b3b94faa DT |
454 | * |
455 | * Returns: errno | |
456 | */ | |
457 | ||
458 | static int ea_get_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea, | |
459 | char *data) | |
460 | { | |
feaa7bba | 461 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
462 | struct buffer_head **bh; |
463 | unsigned int amount = GFS2_EA_DATA_LEN(ea); | |
5c676f6d | 464 | unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize); |
b44b84d7 | 465 | __be64 *dataptrs = GFS2_EA2DATAPTRS(ea); |
b3b94faa DT |
466 | unsigned int x; |
467 | int error = 0; | |
468 | ||
16c5f06f | 469 | bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS); |
b3b94faa DT |
470 | if (!bh) |
471 | return -ENOMEM; | |
472 | ||
473 | for (x = 0; x < nptrs; x++) { | |
7276b3b0 SW |
474 | error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0, |
475 | bh + x); | |
b3b94faa DT |
476 | if (error) { |
477 | while (x--) | |
478 | brelse(bh[x]); | |
479 | goto out; | |
480 | } | |
481 | dataptrs++; | |
482 | } | |
483 | ||
484 | for (x = 0; x < nptrs; x++) { | |
7276b3b0 | 485 | error = gfs2_meta_wait(sdp, bh[x]); |
b3b94faa DT |
486 | if (error) { |
487 | for (; x < nptrs; x++) | |
488 | brelse(bh[x]); | |
489 | goto out; | |
490 | } | |
491 | if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) { | |
492 | for (; x < nptrs; x++) | |
493 | brelse(bh[x]); | |
494 | error = -EIO; | |
495 | goto out; | |
496 | } | |
497 | ||
cca195c5 | 498 | memcpy(data, bh[x]->b_data + sizeof(struct gfs2_meta_header), |
b3b94faa DT |
499 | (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize); |
500 | ||
501 | amount -= sdp->sd_jbsize; | |
502 | data += sdp->sd_jbsize; | |
503 | ||
504 | brelse(bh[x]); | |
505 | } | |
506 | ||
a91ea69f | 507 | out: |
b3b94faa | 508 | kfree(bh); |
b3b94faa DT |
509 | return error; |
510 | } | |
511 | ||
479c427d SW |
512 | static int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el, |
513 | char *data, size_t size) | |
b3b94faa | 514 | { |
40b78a32 SW |
515 | int ret; |
516 | size_t len = GFS2_EA_DATA_LEN(el->el_ea); | |
517 | if (len > size) | |
518 | return -ERANGE; | |
519 | ||
b3b94faa | 520 | if (GFS2_EA_IS_STUFFED(el->el_ea)) { |
40b78a32 SW |
521 | memcpy(data, GFS2_EA2DATA(el->el_ea), len); |
522 | return len; | |
523 | } | |
524 | ret = ea_get_unstuffed(ip, el->el_ea, data); | |
525 | if (ret < 0) | |
526 | return ret; | |
527 | return len; | |
b3b94faa DT |
528 | } |
529 | ||
479c427d SW |
530 | int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **ppdata) |
531 | { | |
532 | struct gfs2_ea_location el; | |
533 | int error; | |
534 | int len; | |
535 | char *data; | |
536 | ||
537 | error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, &el); | |
538 | if (error) | |
539 | return error; | |
540 | if (!el.el_ea) | |
541 | goto out; | |
542 | if (!GFS2_EA_DATA_LEN(el.el_ea)) | |
543 | goto out; | |
544 | ||
545 | len = GFS2_EA_DATA_LEN(el.el_ea); | |
546 | data = kmalloc(len, GFP_NOFS); | |
547 | error = -ENOMEM; | |
548 | if (data == NULL) | |
549 | goto out; | |
550 | ||
551 | error = gfs2_ea_get_copy(ip, &el, data, len); | |
552 | if (error == 0) | |
553 | error = len; | |
554 | *ppdata = data; | |
555 | out: | |
556 | brelse(el.el_bh); | |
557 | return error; | |
558 | } | |
559 | ||
b3b94faa | 560 | /** |
40b78a32 SW |
561 | * gfs2_xattr_get - Get a GFS2 extended attribute |
562 | * @inode: The inode | |
40b78a32 SW |
563 | * @name: The name of the extended attribute |
564 | * @buffer: The buffer to write the result into | |
565 | * @size: The size of the buffer | |
431547b3 | 566 | * @type: The type of extended attribute |
b3b94faa DT |
567 | * |
568 | * Returns: actual size of data on success, -errno on error | |
569 | */ | |
431547b3 CH |
570 | static int gfs2_xattr_get(struct dentry *dentry, const char *name, |
571 | void *buffer, size_t size, int type) | |
b3b94faa | 572 | { |
431547b3 | 573 | struct gfs2_inode *ip = GFS2_I(dentry->d_inode); |
b3b94faa DT |
574 | struct gfs2_ea_location el; |
575 | int error; | |
576 | ||
3767ac21 | 577 | if (!ip->i_eattr) |
b3b94faa | 578 | return -ENODATA; |
40b78a32 SW |
579 | if (strlen(name) > GFS2_EA_MAX_NAME_LEN) |
580 | return -EINVAL; | |
b3b94faa | 581 | |
40b78a32 | 582 | error = gfs2_ea_find(ip, type, name, &el); |
b3b94faa DT |
583 | if (error) |
584 | return error; | |
585 | if (!el.el_ea) | |
586 | return -ENODATA; | |
86d00636 | 587 | if (size) |
40b78a32 SW |
588 | error = gfs2_ea_get_copy(ip, &el, buffer, size); |
589 | else | |
b3b94faa | 590 | error = GFS2_EA_DATA_LEN(el.el_ea); |
b3b94faa DT |
591 | brelse(el.el_bh); |
592 | ||
593 | return error; | |
594 | } | |
595 | ||
b3b94faa DT |
596 | /** |
597 | * ea_alloc_blk - allocates a new block for extended attributes. | |
598 | * @ip: A pointer to the inode that's getting extended attributes | |
cca195c5 | 599 | * @bhp: Pointer to pointer to a struct buffer_head |
b3b94faa DT |
600 | * |
601 | * Returns: errno | |
602 | */ | |
603 | ||
604 | static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp) | |
605 | { | |
feaa7bba | 606 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa | 607 | struct gfs2_ea_header *ea; |
b45e41d7 | 608 | unsigned int n = 1; |
cd915493 | 609 | u64 block; |
09010978 | 610 | int error; |
b3b94faa | 611 | |
09010978 SW |
612 | error = gfs2_alloc_block(ip, &block, &n); |
613 | if (error) | |
614 | return error; | |
5731be53 | 615 | gfs2_trans_add_unrevoke(sdp, block, 1); |
b3b94faa | 616 | *bhp = gfs2_meta_new(ip->i_gl, block); |
d4e9c4c3 | 617 | gfs2_trans_add_bh(ip->i_gl, *bhp, 1); |
b3b94faa DT |
618 | gfs2_metatype_set(*bhp, GFS2_METATYPE_EA, GFS2_FORMAT_EA); |
619 | gfs2_buffer_clear_tail(*bhp, sizeof(struct gfs2_meta_header)); | |
620 | ||
621 | ea = GFS2_EA_BH2FIRST(*bhp); | |
622 | ea->ea_rec_len = cpu_to_be32(sdp->sd_jbsize); | |
623 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
624 | ea->ea_flags = GFS2_EAFLAG_LAST; | |
625 | ea->ea_num_ptrs = 0; | |
626 | ||
77658aad | 627 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa DT |
628 | |
629 | return 0; | |
630 | } | |
631 | ||
632 | /** | |
633 | * ea_write - writes the request info to an ea, creating new blocks if | |
634 | * necessary | |
cca195c5 SW |
635 | * @ip: inode that is being modified |
636 | * @ea: the location of the new ea in a block | |
b3b94faa DT |
637 | * @er: the write request |
638 | * | |
639 | * Note: does not update ea_rec_len or the GFS2_EAFLAG_LAST bin of ea_flags | |
640 | * | |
641 | * returns : errno | |
642 | */ | |
643 | ||
644 | static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea, | |
645 | struct gfs2_ea_request *er) | |
646 | { | |
feaa7bba | 647 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
09010978 | 648 | int error; |
b3b94faa DT |
649 | |
650 | ea->ea_data_len = cpu_to_be32(er->er_data_len); | |
651 | ea->ea_name_len = er->er_name_len; | |
652 | ea->ea_type = er->er_type; | |
653 | ea->__pad = 0; | |
654 | ||
655 | memcpy(GFS2_EA2NAME(ea), er->er_name, er->er_name_len); | |
656 | ||
657 | if (GFS2_EAREQ_SIZE_STUFFED(er) <= sdp->sd_jbsize) { | |
658 | ea->ea_num_ptrs = 0; | |
659 | memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len); | |
660 | } else { | |
b44b84d7 | 661 | __be64 *dataptr = GFS2_EA2DATAPTRS(ea); |
b3b94faa DT |
662 | const char *data = er->er_data; |
663 | unsigned int data_len = er->er_data_len; | |
664 | unsigned int copy; | |
665 | unsigned int x; | |
666 | ||
5c676f6d | 667 | ea->ea_num_ptrs = DIV_ROUND_UP(er->er_data_len, sdp->sd_jbsize); |
b3b94faa DT |
668 | for (x = 0; x < ea->ea_num_ptrs; x++) { |
669 | struct buffer_head *bh; | |
cd915493 | 670 | u64 block; |
b3b94faa | 671 | int mh_size = sizeof(struct gfs2_meta_header); |
b45e41d7 | 672 | unsigned int n = 1; |
b3b94faa | 673 | |
09010978 SW |
674 | error = gfs2_alloc_block(ip, &block, &n); |
675 | if (error) | |
676 | return error; | |
5731be53 | 677 | gfs2_trans_add_unrevoke(sdp, block, 1); |
b3b94faa | 678 | bh = gfs2_meta_new(ip->i_gl, block); |
d4e9c4c3 | 679 | gfs2_trans_add_bh(ip->i_gl, bh, 1); |
b3b94faa DT |
680 | gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED); |
681 | ||
77658aad | 682 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa | 683 | |
cca195c5 SW |
684 | copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize : |
685 | data_len; | |
b3b94faa DT |
686 | memcpy(bh->b_data + mh_size, data, copy); |
687 | if (copy < sdp->sd_jbsize) | |
688 | memset(bh->b_data + mh_size + copy, 0, | |
689 | sdp->sd_jbsize - copy); | |
690 | ||
cca195c5 | 691 | *dataptr++ = cpu_to_be64(bh->b_blocknr); |
b3b94faa DT |
692 | data += copy; |
693 | data_len -= copy; | |
694 | ||
695 | brelse(bh); | |
696 | } | |
697 | ||
698 | gfs2_assert_withdraw(sdp, !data_len); | |
699 | } | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | typedef int (*ea_skeleton_call_t) (struct gfs2_inode *ip, | |
cca195c5 | 705 | struct gfs2_ea_request *er, void *private); |
b3b94faa DT |
706 | |
707 | static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
708 | unsigned int blks, | |
cca195c5 | 709 | ea_skeleton_call_t skeleton_call, void *private) |
b3b94faa DT |
710 | { |
711 | struct gfs2_alloc *al; | |
712 | struct buffer_head *dibh; | |
713 | int error; | |
714 | ||
715 | al = gfs2_alloc_get(ip); | |
182fe5ab CG |
716 | if (!al) |
717 | return -ENOMEM; | |
b3b94faa | 718 | |
d82661d9 | 719 | error = gfs2_quota_lock_check(ip); |
b3b94faa DT |
720 | if (error) |
721 | goto out; | |
722 | ||
b3b94faa DT |
723 | al->al_requested = blks; |
724 | ||
725 | error = gfs2_inplace_reserve(ip); | |
726 | if (error) | |
727 | goto out_gunlock_q; | |
728 | ||
feaa7bba | 729 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), |
bf97b673 | 730 | blks + gfs2_rg_blocks(al) + |
b3b94faa DT |
731 | RES_DINODE + RES_STATFS + RES_QUOTA, 0); |
732 | if (error) | |
733 | goto out_ipres; | |
734 | ||
735 | error = skeleton_call(ip, er, private); | |
736 | if (error) | |
737 | goto out_end_trans; | |
738 | ||
739 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
740 | if (!error) { | |
4bd91ba1 | 741 | ip->i_inode.i_ctime = CURRENT_TIME; |
d4e9c4c3 | 742 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 743 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
744 | brelse(dibh); |
745 | } | |
746 | ||
a91ea69f | 747 | out_end_trans: |
feaa7bba | 748 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
a91ea69f | 749 | out_ipres: |
b3b94faa | 750 | gfs2_inplace_release(ip); |
a91ea69f | 751 | out_gunlock_q: |
b3b94faa | 752 | gfs2_quota_unlock(ip); |
a91ea69f | 753 | out: |
b3b94faa | 754 | gfs2_alloc_put(ip); |
b3b94faa DT |
755 | return error; |
756 | } | |
757 | ||
758 | static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
759 | void *private) | |
760 | { | |
761 | struct buffer_head *bh; | |
762 | int error; | |
763 | ||
764 | error = ea_alloc_blk(ip, &bh); | |
765 | if (error) | |
766 | return error; | |
767 | ||
3767ac21 | 768 | ip->i_eattr = bh->b_blocknr; |
b3b94faa DT |
769 | error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er); |
770 | ||
771 | brelse(bh); | |
772 | ||
773 | return error; | |
774 | } | |
775 | ||
776 | /** | |
777 | * ea_init - initializes a new eattr block | |
778 | * @ip: | |
779 | * @er: | |
780 | * | |
781 | * Returns: errno | |
782 | */ | |
783 | ||
40b78a32 SW |
784 | static int ea_init(struct gfs2_inode *ip, int type, const char *name, |
785 | const void *data, size_t size) | |
b3b94faa | 786 | { |
40b78a32 | 787 | struct gfs2_ea_request er; |
feaa7bba | 788 | unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize; |
b3b94faa DT |
789 | unsigned int blks = 1; |
790 | ||
40b78a32 SW |
791 | er.er_type = type; |
792 | er.er_name = name; | |
793 | er.er_name_len = strlen(name); | |
794 | er.er_data = (void *)data; | |
795 | er.er_data_len = size; | |
796 | ||
797 | if (GFS2_EAREQ_SIZE_STUFFED(&er) > jbsize) | |
798 | blks += DIV_ROUND_UP(er.er_data_len, jbsize); | |
b3b94faa | 799 | |
40b78a32 | 800 | return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL); |
b3b94faa DT |
801 | } |
802 | ||
803 | static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea) | |
804 | { | |
cd915493 | 805 | u32 ea_size = GFS2_EA_SIZE(ea); |
568f4c96 SW |
806 | struct gfs2_ea_header *new = (struct gfs2_ea_header *)((char *)ea + |
807 | ea_size); | |
cd915493 | 808 | u32 new_size = GFS2_EA_REC_LEN(ea) - ea_size; |
b3b94faa DT |
809 | int last = ea->ea_flags & GFS2_EAFLAG_LAST; |
810 | ||
811 | ea->ea_rec_len = cpu_to_be32(ea_size); | |
812 | ea->ea_flags ^= last; | |
813 | ||
814 | new->ea_rec_len = cpu_to_be32(new_size); | |
815 | new->ea_flags = last; | |
816 | ||
817 | return new; | |
818 | } | |
819 | ||
820 | static void ea_set_remove_stuffed(struct gfs2_inode *ip, | |
821 | struct gfs2_ea_location *el) | |
822 | { | |
823 | struct gfs2_ea_header *ea = el->el_ea; | |
824 | struct gfs2_ea_header *prev = el->el_prev; | |
cd915493 | 825 | u32 len; |
b3b94faa | 826 | |
d4e9c4c3 | 827 | gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1); |
b3b94faa DT |
828 | |
829 | if (!prev || !GFS2_EA_IS_STUFFED(ea)) { | |
830 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
831 | return; | |
832 | } else if (GFS2_EA2NEXT(prev) != ea) { | |
833 | prev = GFS2_EA2NEXT(prev); | |
feaa7bba | 834 | gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), GFS2_EA2NEXT(prev) == ea); |
b3b94faa DT |
835 | } |
836 | ||
837 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
838 | prev->ea_rec_len = cpu_to_be32(len); | |
839 | ||
840 | if (GFS2_EA_IS_LAST(ea)) | |
841 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
842 | } | |
843 | ||
844 | struct ea_set { | |
845 | int ea_split; | |
846 | ||
847 | struct gfs2_ea_request *es_er; | |
848 | struct gfs2_ea_location *es_el; | |
849 | ||
850 | struct buffer_head *es_bh; | |
851 | struct gfs2_ea_header *es_ea; | |
852 | }; | |
853 | ||
854 | static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh, | |
855 | struct gfs2_ea_header *ea, struct ea_set *es) | |
856 | { | |
857 | struct gfs2_ea_request *er = es->es_er; | |
858 | struct buffer_head *dibh; | |
859 | int error; | |
860 | ||
feaa7bba | 861 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0); |
b3b94faa DT |
862 | if (error) |
863 | return error; | |
864 | ||
d4e9c4c3 | 865 | gfs2_trans_add_bh(ip->i_gl, bh, 1); |
b3b94faa DT |
866 | |
867 | if (es->ea_split) | |
868 | ea = ea_split_ea(ea); | |
869 | ||
870 | ea_write(ip, ea, er); | |
871 | ||
872 | if (es->es_el) | |
873 | ea_set_remove_stuffed(ip, es->es_el); | |
874 | ||
875 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
876 | if (error) | |
877 | goto out; | |
4bd91ba1 | 878 | ip->i_inode.i_ctime = CURRENT_TIME; |
d4e9c4c3 | 879 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 880 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 881 | brelse(dibh); |
a91ea69f | 882 | out: |
feaa7bba | 883 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
884 | return error; |
885 | } | |
886 | ||
887 | static int ea_set_simple_alloc(struct gfs2_inode *ip, | |
888 | struct gfs2_ea_request *er, void *private) | |
889 | { | |
890 | struct ea_set *es = private; | |
891 | struct gfs2_ea_header *ea = es->es_ea; | |
892 | int error; | |
893 | ||
d4e9c4c3 | 894 | gfs2_trans_add_bh(ip->i_gl, es->es_bh, 1); |
b3b94faa DT |
895 | |
896 | if (es->ea_split) | |
897 | ea = ea_split_ea(ea); | |
898 | ||
899 | error = ea_write(ip, ea, er); | |
900 | if (error) | |
901 | return error; | |
902 | ||
903 | if (es->es_el) | |
904 | ea_set_remove_stuffed(ip, es->es_el); | |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
909 | static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh, | |
910 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
911 | void *private) | |
912 | { | |
913 | struct ea_set *es = private; | |
914 | unsigned int size; | |
915 | int stuffed; | |
916 | int error; | |
917 | ||
40b78a32 SW |
918 | stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len, |
919 | es->es_er->er_data_len, &size); | |
b3b94faa DT |
920 | |
921 | if (ea->ea_type == GFS2_EATYPE_UNUSED) { | |
922 | if (GFS2_EA_REC_LEN(ea) < size) | |
923 | return 0; | |
924 | if (!GFS2_EA_IS_STUFFED(ea)) { | |
925 | error = ea_remove_unstuffed(ip, bh, ea, prev, 1); | |
926 | if (error) | |
927 | return error; | |
928 | } | |
929 | es->ea_split = 0; | |
930 | } else if (GFS2_EA_REC_LEN(ea) - GFS2_EA_SIZE(ea) >= size) | |
931 | es->ea_split = 1; | |
932 | else | |
933 | return 0; | |
934 | ||
935 | if (stuffed) { | |
936 | error = ea_set_simple_noalloc(ip, bh, ea, es); | |
937 | if (error) | |
938 | return error; | |
939 | } else { | |
940 | unsigned int blks; | |
941 | ||
942 | es->es_bh = bh; | |
943 | es->es_ea = ea; | |
5c676f6d | 944 | blks = 2 + DIV_ROUND_UP(es->es_er->er_data_len, |
feaa7bba | 945 | GFS2_SB(&ip->i_inode)->sd_jbsize); |
b3b94faa DT |
946 | |
947 | error = ea_alloc_skeleton(ip, es->es_er, blks, | |
948 | ea_set_simple_alloc, es); | |
949 | if (error) | |
950 | return error; | |
951 | } | |
952 | ||
953 | return 1; | |
954 | } | |
955 | ||
956 | static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
957 | void *private) | |
958 | { | |
feaa7bba | 959 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa | 960 | struct buffer_head *indbh, *newbh; |
b44b84d7 | 961 | __be64 *eablk; |
b3b94faa DT |
962 | int error; |
963 | int mh_size = sizeof(struct gfs2_meta_header); | |
964 | ||
383f01fb | 965 | if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) { |
b44b84d7 | 966 | __be64 *end; |
b3b94faa | 967 | |
3767ac21 | 968 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, |
7276b3b0 | 969 | &indbh); |
b3b94faa DT |
970 | if (error) |
971 | return error; | |
972 | ||
973 | if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) { | |
974 | error = -EIO; | |
975 | goto out; | |
976 | } | |
977 | ||
b44b84d7 | 978 | eablk = (__be64 *)(indbh->b_data + mh_size); |
b3b94faa DT |
979 | end = eablk + sdp->sd_inptrs; |
980 | ||
981 | for (; eablk < end; eablk++) | |
982 | if (!*eablk) | |
983 | break; | |
984 | ||
985 | if (eablk == end) { | |
986 | error = -ENOSPC; | |
987 | goto out; | |
988 | } | |
989 | ||
d4e9c4c3 | 990 | gfs2_trans_add_bh(ip->i_gl, indbh, 1); |
b3b94faa | 991 | } else { |
cd915493 | 992 | u64 blk; |
b45e41d7 | 993 | unsigned int n = 1; |
09010978 SW |
994 | error = gfs2_alloc_block(ip, &blk, &n); |
995 | if (error) | |
996 | return error; | |
5731be53 | 997 | gfs2_trans_add_unrevoke(sdp, blk, 1); |
b3b94faa | 998 | indbh = gfs2_meta_new(ip->i_gl, blk); |
d4e9c4c3 | 999 | gfs2_trans_add_bh(ip->i_gl, indbh, 1); |
b3b94faa DT |
1000 | gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN); |
1001 | gfs2_buffer_clear_tail(indbh, mh_size); | |
1002 | ||
b44b84d7 | 1003 | eablk = (__be64 *)(indbh->b_data + mh_size); |
3767ac21 SW |
1004 | *eablk = cpu_to_be64(ip->i_eattr); |
1005 | ip->i_eattr = blk; | |
383f01fb | 1006 | ip->i_diskflags |= GFS2_DIF_EA_INDIRECT; |
77658aad | 1007 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa DT |
1008 | |
1009 | eablk++; | |
1010 | } | |
1011 | ||
1012 | error = ea_alloc_blk(ip, &newbh); | |
1013 | if (error) | |
1014 | goto out; | |
1015 | ||
cd915493 | 1016 | *eablk = cpu_to_be64((u64)newbh->b_blocknr); |
b3b94faa DT |
1017 | error = ea_write(ip, GFS2_EA_BH2FIRST(newbh), er); |
1018 | brelse(newbh); | |
1019 | if (error) | |
1020 | goto out; | |
1021 | ||
1022 | if (private) | |
cca195c5 | 1023 | ea_set_remove_stuffed(ip, private); |
b3b94faa | 1024 | |
a91ea69f | 1025 | out: |
b3b94faa | 1026 | brelse(indbh); |
b3b94faa DT |
1027 | return error; |
1028 | } | |
1029 | ||
40b78a32 SW |
1030 | static int ea_set_i(struct gfs2_inode *ip, int type, const char *name, |
1031 | const void *value, size_t size, struct gfs2_ea_location *el) | |
b3b94faa | 1032 | { |
40b78a32 | 1033 | struct gfs2_ea_request er; |
b3b94faa DT |
1034 | struct ea_set es; |
1035 | unsigned int blks = 2; | |
1036 | int error; | |
1037 | ||
40b78a32 SW |
1038 | er.er_type = type; |
1039 | er.er_name = name; | |
1040 | er.er_data = (void *)value; | |
1041 | er.er_name_len = strlen(name); | |
1042 | er.er_data_len = size; | |
1043 | ||
b3b94faa | 1044 | memset(&es, 0, sizeof(struct ea_set)); |
40b78a32 | 1045 | es.es_er = &er; |
b3b94faa DT |
1046 | es.es_el = el; |
1047 | ||
1048 | error = ea_foreach(ip, ea_set_simple, &es); | |
1049 | if (error > 0) | |
1050 | return 0; | |
1051 | if (error) | |
1052 | return error; | |
1053 | ||
383f01fb | 1054 | if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) |
b3b94faa | 1055 | blks++; |
40b78a32 SW |
1056 | if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize) |
1057 | blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize); | |
b3b94faa | 1058 | |
40b78a32 | 1059 | return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el); |
b3b94faa DT |
1060 | } |
1061 | ||
1062 | static int ea_set_remove_unstuffed(struct gfs2_inode *ip, | |
1063 | struct gfs2_ea_location *el) | |
1064 | { | |
1065 | if (el->el_prev && GFS2_EA2NEXT(el->el_prev) != el->el_ea) { | |
1066 | el->el_prev = GFS2_EA2NEXT(el->el_prev); | |
feaa7bba | 1067 | gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), |
b3b94faa DT |
1068 | GFS2_EA2NEXT(el->el_prev) == el->el_ea); |
1069 | } | |
1070 | ||
86d00636 | 1071 | return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev, 0); |
b3b94faa DT |
1072 | } |
1073 | ||
b3b94faa DT |
1074 | static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el) |
1075 | { | |
1076 | struct gfs2_ea_header *ea = el->el_ea; | |
1077 | struct gfs2_ea_header *prev = el->el_prev; | |
1078 | struct buffer_head *dibh; | |
1079 | int error; | |
1080 | ||
feaa7bba | 1081 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0); |
b3b94faa DT |
1082 | if (error) |
1083 | return error; | |
1084 | ||
d4e9c4c3 | 1085 | gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1); |
b3b94faa DT |
1086 | |
1087 | if (prev) { | |
cd915493 | 1088 | u32 len; |
b3b94faa DT |
1089 | |
1090 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
1091 | prev->ea_rec_len = cpu_to_be32(len); | |
1092 | ||
1093 | if (GFS2_EA_IS_LAST(ea)) | |
1094 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
40b78a32 | 1095 | } else { |
b3b94faa | 1096 | ea->ea_type = GFS2_EATYPE_UNUSED; |
40b78a32 | 1097 | } |
b3b94faa DT |
1098 | |
1099 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1100 | if (!error) { | |
4bd91ba1 | 1101 | ip->i_inode.i_ctime = CURRENT_TIME; |
d4e9c4c3 | 1102 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 1103 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa | 1104 | brelse(dibh); |
907b9bce | 1105 | } |
b3b94faa | 1106 | |
feaa7bba | 1107 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
1108 | |
1109 | return error; | |
1110 | } | |
1111 | ||
40b78a32 SW |
1112 | /** |
1113 | * gfs2_xattr_remove - Remove a GFS2 extended attribute | |
431547b3 | 1114 | * @ip: The inode |
40b78a32 SW |
1115 | * @type: The type of the extended attribute |
1116 | * @name: The name of the extended attribute | |
1117 | * | |
1118 | * This is not called directly by the VFS since we use the (common) | |
1119 | * scheme of making a "set with NULL data" mean a remove request. Note | |
1120 | * that this is different from a set with zero length data. | |
1121 | * | |
1122 | * Returns: 0, or errno on failure | |
1123 | */ | |
1124 | ||
431547b3 | 1125 | static int gfs2_xattr_remove(struct gfs2_inode *ip, int type, const char *name) |
b3b94faa DT |
1126 | { |
1127 | struct gfs2_ea_location el; | |
1128 | int error; | |
1129 | ||
3767ac21 | 1130 | if (!ip->i_eattr) |
b3b94faa DT |
1131 | return -ENODATA; |
1132 | ||
40b78a32 | 1133 | error = gfs2_ea_find(ip, type, name, &el); |
b3b94faa DT |
1134 | if (error) |
1135 | return error; | |
1136 | if (!el.el_ea) | |
1137 | return -ENODATA; | |
1138 | ||
1139 | if (GFS2_EA_IS_STUFFED(el.el_ea)) | |
1140 | error = ea_remove_stuffed(ip, &el); | |
1141 | else | |
40b78a32 | 1142 | error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0); |
b3b94faa DT |
1143 | |
1144 | brelse(el.el_bh); | |
1145 | ||
1146 | return error; | |
1147 | } | |
1148 | ||
1149 | /** | |
431547b3 CH |
1150 | * __gfs2_xattr_set - Set (or remove) a GFS2 extended attribute |
1151 | * @ip: The inode | |
40b78a32 SW |
1152 | * @name: The name of the extended attribute |
1153 | * @value: The value of the extended attribute (NULL for remove) | |
1154 | * @size: The size of the @value argument | |
1155 | * @flags: Create or Replace | |
431547b3 | 1156 | * @type: The type of the extended attribute |
b3b94faa | 1157 | * |
40b78a32 SW |
1158 | * See gfs2_xattr_remove() for details of the removal of xattrs. |
1159 | * | |
1160 | * Returns: 0 or errno on failure | |
b3b94faa DT |
1161 | */ |
1162 | ||
431547b3 CH |
1163 | int __gfs2_xattr_set(struct inode *inode, const char *name, |
1164 | const void *value, size_t size, int flags, int type) | |
b3b94faa | 1165 | { |
40b78a32 | 1166 | struct gfs2_inode *ip = GFS2_I(inode); |
431547b3 | 1167 | struct gfs2_sbd *sdp = GFS2_SB(inode); |
40b78a32 SW |
1168 | struct gfs2_ea_location el; |
1169 | unsigned int namel = strlen(name); | |
b3b94faa DT |
1170 | int error; |
1171 | ||
40b78a32 SW |
1172 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1173 | return -EPERM; | |
1174 | if (namel > GFS2_EA_MAX_NAME_LEN) | |
1175 | return -ERANGE; | |
b3b94faa | 1176 | |
40b78a32 | 1177 | if (value == NULL) |
431547b3 | 1178 | return gfs2_xattr_remove(ip, type, name); |
40b78a32 SW |
1179 | |
1180 | if (ea_check_size(sdp, namel, size)) | |
1181 | return -ERANGE; | |
1182 | ||
1183 | if (!ip->i_eattr) { | |
1184 | if (flags & XATTR_REPLACE) | |
1185 | return -ENODATA; | |
1186 | return ea_init(ip, type, name, value, size); | |
1187 | } | |
1188 | ||
1189 | error = gfs2_ea_find(ip, type, name, &el); | |
b3b94faa DT |
1190 | if (error) |
1191 | return error; | |
1192 | ||
40b78a32 SW |
1193 | if (el.el_ea) { |
1194 | if (ip->i_diskflags & GFS2_DIF_APPENDONLY) { | |
1195 | brelse(el.el_bh); | |
1196 | return -EPERM; | |
1197 | } | |
b3b94faa | 1198 | |
40b78a32 SW |
1199 | error = -EEXIST; |
1200 | if (!(flags & XATTR_CREATE)) { | |
1201 | int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea); | |
1202 | error = ea_set_i(ip, type, name, value, size, &el); | |
1203 | if (!error && unstuffed) | |
1204 | ea_set_remove_unstuffed(ip, &el); | |
1205 | } | |
1206 | ||
1207 | brelse(el.el_bh); | |
1208 | return error; | |
1209 | } | |
1210 | ||
1211 | error = -ENODATA; | |
1212 | if (!(flags & XATTR_REPLACE)) | |
1213 | error = ea_set_i(ip, type, name, value, size, NULL); | |
b3b94faa DT |
1214 | |
1215 | return error; | |
1216 | } | |
1217 | ||
431547b3 CH |
1218 | static int gfs2_xattr_set(struct dentry *dentry, const char *name, |
1219 | const void *value, size_t size, int flags, int type) | |
1220 | { | |
1221 | return __gfs2_xattr_set(dentry->d_inode, name, value, | |
1222 | size, flags, type); | |
1223 | } | |
1224 | ||
b3b94faa DT |
1225 | static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip, |
1226 | struct gfs2_ea_header *ea, char *data) | |
1227 | { | |
feaa7bba | 1228 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
1229 | struct buffer_head **bh; |
1230 | unsigned int amount = GFS2_EA_DATA_LEN(ea); | |
5c676f6d | 1231 | unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize); |
b44b84d7 | 1232 | __be64 *dataptrs = GFS2_EA2DATAPTRS(ea); |
b3b94faa DT |
1233 | unsigned int x; |
1234 | int error; | |
1235 | ||
16c5f06f | 1236 | bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS); |
b3b94faa DT |
1237 | if (!bh) |
1238 | return -ENOMEM; | |
1239 | ||
1240 | error = gfs2_trans_begin(sdp, nptrs + RES_DINODE, 0); | |
1241 | if (error) | |
1242 | goto out; | |
1243 | ||
1244 | for (x = 0; x < nptrs; x++) { | |
7276b3b0 SW |
1245 | error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0, |
1246 | bh + x); | |
b3b94faa DT |
1247 | if (error) { |
1248 | while (x--) | |
1249 | brelse(bh[x]); | |
1250 | goto fail; | |
1251 | } | |
1252 | dataptrs++; | |
1253 | } | |
1254 | ||
1255 | for (x = 0; x < nptrs; x++) { | |
7276b3b0 | 1256 | error = gfs2_meta_wait(sdp, bh[x]); |
b3b94faa DT |
1257 | if (error) { |
1258 | for (; x < nptrs; x++) | |
1259 | brelse(bh[x]); | |
1260 | goto fail; | |
1261 | } | |
1262 | if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) { | |
1263 | for (; x < nptrs; x++) | |
1264 | brelse(bh[x]); | |
1265 | error = -EIO; | |
1266 | goto fail; | |
1267 | } | |
1268 | ||
d4e9c4c3 | 1269 | gfs2_trans_add_bh(ip->i_gl, bh[x], 1); |
b3b94faa | 1270 | |
cca195c5 | 1271 | memcpy(bh[x]->b_data + sizeof(struct gfs2_meta_header), data, |
b3b94faa DT |
1272 | (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize); |
1273 | ||
1274 | amount -= sdp->sd_jbsize; | |
1275 | data += sdp->sd_jbsize; | |
1276 | ||
1277 | brelse(bh[x]); | |
1278 | } | |
1279 | ||
a91ea69f | 1280 | out: |
b3b94faa | 1281 | kfree(bh); |
b3b94faa DT |
1282 | return error; |
1283 | ||
a91ea69f | 1284 | fail: |
b3b94faa DT |
1285 | gfs2_trans_end(sdp); |
1286 | kfree(bh); | |
b3b94faa DT |
1287 | return error; |
1288 | } | |
1289 | ||
479c427d | 1290 | int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) |
b3b94faa | 1291 | { |
ab9bbda0 SW |
1292 | struct inode *inode = &ip->i_inode; |
1293 | struct gfs2_sbd *sdp = GFS2_SB(inode); | |
479c427d | 1294 | struct gfs2_ea_location el; |
b3b94faa DT |
1295 | int error; |
1296 | ||
479c427d SW |
1297 | error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, GFS2_POSIX_ACL_ACCESS, &el); |
1298 | if (error) | |
1299 | return error; | |
1300 | ||
1301 | if (GFS2_EA_IS_STUFFED(el.el_ea)) { | |
e412bdb1 SW |
1302 | error = gfs2_trans_begin(sdp, RES_DINODE + RES_EATTR, 0); |
1303 | if (error == 0) { | |
1304 | gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1); | |
1305 | memcpy(GFS2_EA2DATA(el.el_ea), data, | |
1306 | GFS2_EA_DATA_LEN(el.el_ea)); | |
1307 | } | |
1308 | } else { | |
479c427d | 1309 | error = ea_acl_chmod_unstuffed(ip, el.el_ea, data); |
e412bdb1 | 1310 | } |
b3b94faa | 1311 | |
e412bdb1 | 1312 | brelse(el.el_bh); |
b3b94faa DT |
1313 | if (error) |
1314 | return error; | |
1315 | ||
ab9bbda0 | 1316 | error = gfs2_setattr_simple(inode, attr); |
e412bdb1 | 1317 | gfs2_trans_end(sdp); |
b3b94faa DT |
1318 | return error; |
1319 | } | |
1320 | ||
1321 | static int ea_dealloc_indirect(struct gfs2_inode *ip) | |
1322 | { | |
feaa7bba | 1323 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
1324 | struct gfs2_rgrp_list rlist; |
1325 | struct buffer_head *indbh, *dibh; | |
b44b84d7 | 1326 | __be64 *eablk, *end; |
b3b94faa | 1327 | unsigned int rg_blocks = 0; |
cd915493 | 1328 | u64 bstart = 0; |
b3b94faa DT |
1329 | unsigned int blen = 0; |
1330 | unsigned int blks = 0; | |
1331 | unsigned int x; | |
1332 | int error; | |
1333 | ||
1334 | memset(&rlist, 0, sizeof(struct gfs2_rgrp_list)); | |
1335 | ||
3767ac21 | 1336 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh); |
b3b94faa DT |
1337 | if (error) |
1338 | return error; | |
1339 | ||
1340 | if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) { | |
1341 | error = -EIO; | |
1342 | goto out; | |
1343 | } | |
1344 | ||
b44b84d7 | 1345 | eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header)); |
b3b94faa DT |
1346 | end = eablk + sdp->sd_inptrs; |
1347 | ||
1348 | for (; eablk < end; eablk++) { | |
cd915493 | 1349 | u64 bn; |
b3b94faa DT |
1350 | |
1351 | if (!*eablk) | |
1352 | break; | |
1353 | bn = be64_to_cpu(*eablk); | |
1354 | ||
1355 | if (bstart + blen == bn) | |
1356 | blen++; | |
1357 | else { | |
1358 | if (bstart) | |
1359 | gfs2_rlist_add(sdp, &rlist, bstart); | |
1360 | bstart = bn; | |
1361 | blen = 1; | |
1362 | } | |
1363 | blks++; | |
1364 | } | |
1365 | if (bstart) | |
1366 | gfs2_rlist_add(sdp, &rlist, bstart); | |
1367 | else | |
1368 | goto out; | |
1369 | ||
fe6c991c | 1370 | gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE); |
b3b94faa DT |
1371 | |
1372 | for (x = 0; x < rlist.rl_rgrps; x++) { | |
1373 | struct gfs2_rgrpd *rgd; | |
5c676f6d | 1374 | rgd = rlist.rl_ghs[x].gh_gl->gl_object; |
bb8d8a6f | 1375 | rg_blocks += rgd->rd_length; |
b3b94faa DT |
1376 | } |
1377 | ||
1378 | error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs); | |
1379 | if (error) | |
1380 | goto out_rlist_free; | |
1381 | ||
cca195c5 SW |
1382 | error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE + RES_INDIRECT + |
1383 | RES_STATFS + RES_QUOTA, blks); | |
b3b94faa DT |
1384 | if (error) |
1385 | goto out_gunlock; | |
1386 | ||
d4e9c4c3 | 1387 | gfs2_trans_add_bh(ip->i_gl, indbh, 1); |
b3b94faa | 1388 | |
b44b84d7 | 1389 | eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header)); |
b3b94faa DT |
1390 | bstart = 0; |
1391 | blen = 0; | |
1392 | ||
1393 | for (; eablk < end; eablk++) { | |
cd915493 | 1394 | u64 bn; |
b3b94faa DT |
1395 | |
1396 | if (!*eablk) | |
1397 | break; | |
1398 | bn = be64_to_cpu(*eablk); | |
1399 | ||
1400 | if (bstart + blen == bn) | |
1401 | blen++; | |
1402 | else { | |
1403 | if (bstart) | |
1404 | gfs2_free_meta(ip, bstart, blen); | |
1405 | bstart = bn; | |
1406 | blen = 1; | |
1407 | } | |
1408 | ||
1409 | *eablk = 0; | |
77658aad | 1410 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa DT |
1411 | } |
1412 | if (bstart) | |
1413 | gfs2_free_meta(ip, bstart, blen); | |
1414 | ||
383f01fb | 1415 | ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT; |
b3b94faa DT |
1416 | |
1417 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1418 | if (!error) { | |
d4e9c4c3 | 1419 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 1420 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
1421 | brelse(dibh); |
1422 | } | |
1423 | ||
1424 | gfs2_trans_end(sdp); | |
1425 | ||
a91ea69f | 1426 | out_gunlock: |
b3b94faa | 1427 | gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs); |
a91ea69f | 1428 | out_rlist_free: |
b3b94faa | 1429 | gfs2_rlist_free(&rlist); |
a91ea69f | 1430 | out: |
b3b94faa | 1431 | brelse(indbh); |
b3b94faa DT |
1432 | return error; |
1433 | } | |
1434 | ||
1435 | static int ea_dealloc_block(struct gfs2_inode *ip) | |
1436 | { | |
feaa7bba | 1437 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
6dbd8224 | 1438 | struct gfs2_alloc *al = ip->i_alloc; |
b3b94faa DT |
1439 | struct gfs2_rgrpd *rgd; |
1440 | struct buffer_head *dibh; | |
1441 | int error; | |
1442 | ||
3767ac21 | 1443 | rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr); |
b3b94faa DT |
1444 | if (!rgd) { |
1445 | gfs2_consist_inode(ip); | |
1446 | return -EIO; | |
1447 | } | |
1448 | ||
1449 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, | |
1450 | &al->al_rgd_gh); | |
1451 | if (error) | |
1452 | return error; | |
1453 | ||
cca195c5 SW |
1454 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_DINODE + RES_STATFS + |
1455 | RES_QUOTA, 1); | |
b3b94faa DT |
1456 | if (error) |
1457 | goto out_gunlock; | |
1458 | ||
3767ac21 | 1459 | gfs2_free_meta(ip, ip->i_eattr, 1); |
b3b94faa | 1460 | |
3767ac21 | 1461 | ip->i_eattr = 0; |
77658aad | 1462 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa DT |
1463 | |
1464 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1465 | if (!error) { | |
d4e9c4c3 | 1466 | gfs2_trans_add_bh(ip->i_gl, dibh, 1); |
539e5d6b | 1467 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
1468 | brelse(dibh); |
1469 | } | |
1470 | ||
1471 | gfs2_trans_end(sdp); | |
1472 | ||
a91ea69f | 1473 | out_gunlock: |
b3b94faa | 1474 | gfs2_glock_dq_uninit(&al->al_rgd_gh); |
b3b94faa DT |
1475 | return error; |
1476 | } | |
1477 | ||
1478 | /** | |
1479 | * gfs2_ea_dealloc - deallocate the extended attribute fork | |
1480 | * @ip: the inode | |
1481 | * | |
1482 | * Returns: errno | |
1483 | */ | |
1484 | ||
1485 | int gfs2_ea_dealloc(struct gfs2_inode *ip) | |
1486 | { | |
1487 | struct gfs2_alloc *al; | |
1488 | int error; | |
1489 | ||
1490 | al = gfs2_alloc_get(ip); | |
182fe5ab CG |
1491 | if (!al) |
1492 | return -ENOMEM; | |
b3b94faa DT |
1493 | |
1494 | error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); | |
1495 | if (error) | |
1496 | goto out_alloc; | |
1497 | ||
b3b94faa DT |
1498 | error = ea_foreach(ip, ea_dealloc_unstuffed, NULL); |
1499 | if (error) | |
8339ee54 | 1500 | goto out_quota; |
b3b94faa | 1501 | |
383f01fb | 1502 | if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) { |
b3b94faa DT |
1503 | error = ea_dealloc_indirect(ip); |
1504 | if (error) | |
8339ee54 | 1505 | goto out_quota; |
b3b94faa DT |
1506 | } |
1507 | ||
1508 | error = ea_dealloc_block(ip); | |
1509 | ||
a91ea69f | 1510 | out_quota: |
b3b94faa | 1511 | gfs2_quota_unhold(ip); |
a91ea69f | 1512 | out_alloc: |
b3b94faa | 1513 | gfs2_alloc_put(ip); |
b3b94faa DT |
1514 | return error; |
1515 | } | |
1516 | ||
b7bb0a12 | 1517 | static const struct xattr_handler gfs2_xattr_user_handler = { |
40b78a32 | 1518 | .prefix = XATTR_USER_PREFIX, |
431547b3 CH |
1519 | .flags = GFS2_EATYPE_USR, |
1520 | .get = gfs2_xattr_get, | |
1521 | .set = gfs2_xattr_set, | |
40b78a32 SW |
1522 | }; |
1523 | ||
b7bb0a12 | 1524 | static const struct xattr_handler gfs2_xattr_security_handler = { |
40b78a32 | 1525 | .prefix = XATTR_SECURITY_PREFIX, |
431547b3 CH |
1526 | .flags = GFS2_EATYPE_SECURITY, |
1527 | .get = gfs2_xattr_get, | |
1528 | .set = gfs2_xattr_set, | |
40b78a32 SW |
1529 | }; |
1530 | ||
b7bb0a12 | 1531 | const struct xattr_handler *gfs2_xattr_handlers[] = { |
40b78a32 SW |
1532 | &gfs2_xattr_user_handler, |
1533 | &gfs2_xattr_security_handler, | |
1534 | &gfs2_xattr_system_handler, | |
1535 | NULL, | |
1536 | }; | |
1537 |