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7336d0e6 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
b3b94faa DT |
2 | /* |
3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 4 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
5 | */ |
6 | ||
b3b94faa DT |
7 | #include <linux/slab.h> |
8 | #include <linux/spinlock.h> | |
9 | #include <linux/completion.h> | |
10 | #include <linux/buffer_head.h> | |
11 | #include <linux/xattr.h> | |
5c676f6d | 12 | #include <linux/gfs2_ondisk.h> |
e01580bf | 13 | #include <linux/posix_acl_xattr.h> |
7c0f6ba6 | 14 | #include <linux/uaccess.h> |
b3b94faa DT |
15 | |
16 | #include "gfs2.h" | |
5c676f6d | 17 | #include "incore.h" |
b3b94faa | 18 | #include "acl.h" |
307cf6e6 | 19 | #include "xattr.h" |
b3b94faa DT |
20 | #include "glock.h" |
21 | #include "inode.h" | |
22 | #include "meta_io.h" | |
23 | #include "quota.h" | |
24 | #include "rgrp.h" | |
27c3b415 | 25 | #include "super.h" |
b3b94faa | 26 | #include "trans.h" |
5c676f6d | 27 | #include "util.h" |
b3b94faa | 28 | |
c551f66c LJ |
29 | /* |
30 | * ea_calc_size - returns the actual number of bytes the request will take up | |
b3b94faa | 31 | * (not counting any unstuffed data blocks) |
b3b94faa DT |
32 | * |
33 | * Returns: 1 if the EA should be stuffed | |
34 | */ | |
35 | ||
40b78a32 | 36 | static int ea_calc_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize, |
b3b94faa DT |
37 | unsigned int *size) |
38 | { | |
40b78a32 SW |
39 | unsigned int jbsize = sdp->sd_jbsize; |
40 | ||
41 | /* Stuffed */ | |
42 | *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + dsize, 8); | |
43 | ||
44 | if (*size <= jbsize) | |
b3b94faa DT |
45 | return 1; |
46 | ||
40b78a32 SW |
47 | /* Unstuffed */ |
48 | *size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + | |
49 | (sizeof(__be64) * DIV_ROUND_UP(dsize, jbsize)), 8); | |
b3b94faa DT |
50 | |
51 | return 0; | |
52 | } | |
53 | ||
40b78a32 | 54 | static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize) |
b3b94faa DT |
55 | { |
56 | unsigned int size; | |
57 | ||
40b78a32 | 58 | if (dsize > GFS2_EA_MAX_DATA_LEN) |
b3b94faa DT |
59 | return -ERANGE; |
60 | ||
40b78a32 | 61 | ea_calc_size(sdp, nsize, dsize, &size); |
b3b94faa DT |
62 | |
63 | /* This can only happen with 512 byte blocks */ | |
64 | if (size > sdp->sd_jbsize) | |
65 | return -ERANGE; | |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
866eef48 AG |
70 | static bool gfs2_eatype_valid(struct gfs2_sbd *sdp, u8 type) |
71 | { | |
72 | switch(sdp->sd_sb.sb_fs_format) { | |
73 | case GFS2_FS_FORMAT_MAX: | |
74 | return true; | |
75 | ||
76 | case GFS2_FS_FORMAT_MIN: | |
77 | return type <= GFS2_EATYPE_SECURITY; | |
78 | ||
79 | default: | |
80 | return false; | |
81 | } | |
82 | } | |
83 | ||
cca195c5 | 84 | typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh, |
b3b94faa | 85 | struct gfs2_ea_header *ea, |
cca195c5 | 86 | struct gfs2_ea_header *prev, void *private); |
b3b94faa DT |
87 | |
88 | static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh, | |
89 | ea_call_t ea_call, void *data) | |
90 | { | |
866eef48 | 91 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
92 | struct gfs2_ea_header *ea, *prev = NULL; |
93 | int error = 0; | |
94 | ||
feaa7bba | 95 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_EA)) |
b3b94faa DT |
96 | return -EIO; |
97 | ||
98 | for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) { | |
99 | if (!GFS2_EA_REC_LEN(ea)) | |
100 | goto fail; | |
cca195c5 SW |
101 | if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <= |
102 | bh->b_data + bh->b_size)) | |
b3b94faa | 103 | goto fail; |
866eef48 | 104 | if (!gfs2_eatype_valid(sdp, ea->ea_type)) |
b3b94faa | 105 | goto fail; |
b3b94faa DT |
106 | error = ea_call(ip, bh, ea, prev, data); |
107 | if (error) | |
108 | return error; | |
109 | ||
110 | if (GFS2_EA_IS_LAST(ea)) { | |
111 | if ((char *)GFS2_EA2NEXT(ea) != | |
112 | bh->b_data + bh->b_size) | |
113 | goto fail; | |
114 | break; | |
115 | } | |
116 | } | |
117 | ||
118 | return error; | |
119 | ||
a91ea69f | 120 | fail: |
b3b94faa DT |
121 | gfs2_consist_inode(ip); |
122 | return -EIO; | |
123 | } | |
124 | ||
125 | static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data) | |
126 | { | |
127 | struct buffer_head *bh, *eabh; | |
b44b84d7 | 128 | __be64 *eablk, *end; |
b3b94faa DT |
129 | int error; |
130 | ||
c8d57703 | 131 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, 0, &bh); |
b3b94faa DT |
132 | if (error) |
133 | return error; | |
134 | ||
383f01fb | 135 | if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) { |
b3b94faa DT |
136 | error = ea_foreach_i(ip, bh, ea_call, data); |
137 | goto out; | |
138 | } | |
139 | ||
feaa7bba | 140 | if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_IN)) { |
b3b94faa DT |
141 | error = -EIO; |
142 | goto out; | |
143 | } | |
144 | ||
b44b84d7 | 145 | eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header)); |
feaa7bba | 146 | end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs; |
b3b94faa DT |
147 | |
148 | for (; eablk < end; eablk++) { | |
cd915493 | 149 | u64 bn; |
b3b94faa DT |
150 | |
151 | if (!*eablk) | |
152 | break; | |
153 | bn = be64_to_cpu(*eablk); | |
154 | ||
c8d57703 | 155 | error = gfs2_meta_read(ip->i_gl, bn, DIO_WAIT, 0, &eabh); |
b3b94faa DT |
156 | if (error) |
157 | break; | |
158 | error = ea_foreach_i(ip, eabh, ea_call, data); | |
159 | brelse(eabh); | |
160 | if (error) | |
161 | break; | |
162 | } | |
a91ea69f | 163 | out: |
b3b94faa | 164 | brelse(bh); |
b3b94faa DT |
165 | return error; |
166 | } | |
167 | ||
168 | struct ea_find { | |
40b78a32 SW |
169 | int type; |
170 | const char *name; | |
171 | size_t namel; | |
b3b94faa DT |
172 | struct gfs2_ea_location *ef_el; |
173 | }; | |
174 | ||
175 | static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh, | |
176 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
177 | void *private) | |
178 | { | |
179 | struct ea_find *ef = private; | |
b3b94faa DT |
180 | |
181 | if (ea->ea_type == GFS2_EATYPE_UNUSED) | |
182 | return 0; | |
183 | ||
40b78a32 SW |
184 | if (ea->ea_type == ef->type) { |
185 | if (ea->ea_name_len == ef->namel && | |
186 | !memcmp(GFS2_EA2NAME(ea), ef->name, ea->ea_name_len)) { | |
b3b94faa DT |
187 | struct gfs2_ea_location *el = ef->ef_el; |
188 | get_bh(bh); | |
189 | el->el_bh = bh; | |
190 | el->el_ea = ea; | |
191 | el->el_prev = prev; | |
192 | return 1; | |
193 | } | |
194 | } | |
195 | ||
b3b94faa DT |
196 | return 0; |
197 | } | |
198 | ||
479c427d SW |
199 | static int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name, |
200 | struct gfs2_ea_location *el) | |
b3b94faa DT |
201 | { |
202 | struct ea_find ef; | |
203 | int error; | |
204 | ||
40b78a32 SW |
205 | ef.type = type; |
206 | ef.name = name; | |
207 | ef.namel = strlen(name); | |
b3b94faa DT |
208 | ef.ef_el = el; |
209 | ||
210 | memset(el, 0, sizeof(struct gfs2_ea_location)); | |
211 | ||
212 | error = ea_foreach(ip, ea_find_i, &ef); | |
213 | if (error > 0) | |
214 | return 0; | |
215 | ||
216 | return error; | |
217 | } | |
218 | ||
c551f66c LJ |
219 | /* |
220 | * ea_dealloc_unstuffed | |
b3b94faa DT |
221 | * |
222 | * Take advantage of the fact that all unstuffed blocks are | |
223 | * allocated from the same RG. But watch, this may not always | |
224 | * be true. | |
225 | * | |
226 | * Returns: errno | |
227 | */ | |
228 | ||
229 | static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, | |
230 | struct gfs2_ea_header *ea, | |
231 | struct gfs2_ea_header *prev, void *private) | |
232 | { | |
233 | int *leave = private; | |
feaa7bba | 234 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
235 | struct gfs2_rgrpd *rgd; |
236 | struct gfs2_holder rg_gh; | |
b44b84d7 AV |
237 | __be64 *dataptrs; |
238 | u64 bn = 0; | |
cd915493 | 239 | u64 bstart = 0; |
b3b94faa DT |
240 | unsigned int blen = 0; |
241 | unsigned int blks = 0; | |
242 | unsigned int x; | |
243 | int error; | |
244 | ||
5e2f7d61 BP |
245 | error = gfs2_rindex_update(sdp); |
246 | if (error) | |
247 | return error; | |
248 | ||
b3b94faa DT |
249 | if (GFS2_EA_IS_STUFFED(ea)) |
250 | return 0; | |
251 | ||
252 | dataptrs = GFS2_EA2DATAPTRS(ea); | |
cca195c5 | 253 | for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) { |
b3b94faa DT |
254 | if (*dataptrs) { |
255 | blks++; | |
256 | bn = be64_to_cpu(*dataptrs); | |
257 | } | |
cca195c5 | 258 | } |
b3b94faa DT |
259 | if (!blks) |
260 | return 0; | |
261 | ||
66fc061b | 262 | rgd = gfs2_blk2rgrpd(sdp, bn, 1); |
b3b94faa DT |
263 | if (!rgd) { |
264 | gfs2_consist_inode(ip); | |
265 | return -EIO; | |
266 | } | |
267 | ||
4fc7ec31 BP |
268 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, |
269 | LM_FLAG_NODE_SCOPE, &rg_gh); | |
b3b94faa DT |
270 | if (error) |
271 | return error; | |
272 | ||
bb8d8a6f | 273 | error = gfs2_trans_begin(sdp, rgd->rd_length + RES_DINODE + |
cca195c5 | 274 | RES_EATTR + RES_STATFS + RES_QUOTA, blks); |
b3b94faa DT |
275 | if (error) |
276 | goto out_gunlock; | |
277 | ||
350a9b0a | 278 | gfs2_trans_add_meta(ip->i_gl, bh); |
b3b94faa DT |
279 | |
280 | dataptrs = GFS2_EA2DATAPTRS(ea); | |
281 | for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) { | |
282 | if (!*dataptrs) | |
283 | break; | |
284 | bn = be64_to_cpu(*dataptrs); | |
285 | ||
286 | if (bstart + blen == bn) | |
287 | blen++; | |
288 | else { | |
289 | if (bstart) | |
0ddeded4 | 290 | gfs2_free_meta(ip, rgd, bstart, blen); |
b3b94faa DT |
291 | bstart = bn; |
292 | blen = 1; | |
293 | } | |
294 | ||
295 | *dataptrs = 0; | |
77658aad | 296 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa DT |
297 | } |
298 | if (bstart) | |
0ddeded4 | 299 | gfs2_free_meta(ip, rgd, bstart, blen); |
b3b94faa DT |
300 | |
301 | if (prev && !leave) { | |
cd915493 | 302 | u32 len; |
b3b94faa DT |
303 | |
304 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
305 | prev->ea_rec_len = cpu_to_be32(len); | |
306 | ||
307 | if (GFS2_EA_IS_LAST(ea)) | |
308 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
309 | } else { | |
310 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
311 | ea->ea_num_ptrs = 0; | |
312 | } | |
313 | ||
6862c44e | 314 | ip->i_inode.i_ctime = current_time(&ip->i_inode); |
937d3305 | 315 | __mark_inode_dirty(&ip->i_inode, I_DIRTY_DATASYNC); |
b3b94faa DT |
316 | |
317 | gfs2_trans_end(sdp); | |
318 | ||
a91ea69f | 319 | out_gunlock: |
b3b94faa | 320 | gfs2_glock_dq_uninit(&rg_gh); |
b3b94faa DT |
321 | return error; |
322 | } | |
323 | ||
324 | static int ea_remove_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh, | |
325 | struct gfs2_ea_header *ea, | |
326 | struct gfs2_ea_header *prev, int leave) | |
327 | { | |
b3b94faa DT |
328 | int error; |
329 | ||
8e2e0047 BP |
330 | error = gfs2_rindex_update(GFS2_SB(&ip->i_inode)); |
331 | if (error) | |
332 | return error; | |
333 | ||
f4108a60 | 334 | error = gfs2_quota_hold(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); |
b3b94faa DT |
335 | if (error) |
336 | goto out_alloc; | |
337 | ||
cca195c5 | 338 | error = ea_dealloc_unstuffed(ip, bh, ea, prev, (leave) ? &error : NULL); |
b3b94faa | 339 | |
b3b94faa | 340 | gfs2_quota_unhold(ip); |
a91ea69f | 341 | out_alloc: |
b3b94faa DT |
342 | return error; |
343 | } | |
344 | ||
b3b94faa DT |
345 | struct ea_list { |
346 | struct gfs2_ea_request *ei_er; | |
347 | unsigned int ei_size; | |
348 | }; | |
349 | ||
350 | static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh, | |
351 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
352 | void *private) | |
353 | { | |
866eef48 | 354 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
355 | struct ea_list *ei = private; |
356 | struct gfs2_ea_request *er = ei->ei_er; | |
21e2156f AG |
357 | unsigned int ea_size; |
358 | char *prefix; | |
359 | unsigned int l; | |
b3b94faa DT |
360 | |
361 | if (ea->ea_type == GFS2_EATYPE_UNUSED) | |
362 | return 0; | |
363 | ||
866eef48 AG |
364 | BUG_ON(ea->ea_type > GFS2_EATYPE_SECURITY && |
365 | sdp->sd_sb.sb_fs_format == GFS2_FS_FORMAT_MIN); | |
21e2156f AG |
366 | switch (ea->ea_type) { |
367 | case GFS2_EATYPE_USR: | |
368 | prefix = "user."; | |
369 | l = 5; | |
370 | break; | |
371 | case GFS2_EATYPE_SYS: | |
372 | prefix = "system."; | |
373 | l = 7; | |
374 | break; | |
375 | case GFS2_EATYPE_SECURITY: | |
376 | prefix = "security."; | |
377 | l = 9; | |
378 | break; | |
866eef48 AG |
379 | case GFS2_EATYPE_TRUSTED: |
380 | prefix = "trusted."; | |
381 | l = 8; | |
382 | break; | |
21e2156f | 383 | default: |
866eef48 | 384 | return 0; |
21e2156f | 385 | } |
b3b94faa | 386 | |
21e2156f AG |
387 | ea_size = l + ea->ea_name_len + 1; |
388 | if (er->er_data_len) { | |
b3b94faa DT |
389 | if (ei->ei_size + ea_size > er->er_data_len) |
390 | return -ERANGE; | |
391 | ||
90cdd208 SW |
392 | memcpy(er->er_data + ei->ei_size, prefix, l); |
393 | memcpy(er->er_data + ei->ei_size + l, GFS2_EA2NAME(ea), | |
b3b94faa | 394 | ea->ea_name_len); |
21e2156f | 395 | er->er_data[ei->ei_size + ea_size - 1] = 0; |
b3b94faa DT |
396 | } |
397 | ||
398 | ei->ei_size += ea_size; | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | /** | |
40b78a32 SW |
404 | * gfs2_listxattr - List gfs2 extended attributes |
405 | * @dentry: The dentry whose inode we are interested in | |
406 | * @buffer: The buffer to write the results | |
407 | * @size: The size of the buffer | |
b3b94faa DT |
408 | * |
409 | * Returns: actual size of data on success, -errno on error | |
410 | */ | |
411 | ||
40b78a32 | 412 | ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size) |
b3b94faa | 413 | { |
2b0143b5 | 414 | struct gfs2_inode *ip = GFS2_I(d_inode(dentry)); |
40b78a32 | 415 | struct gfs2_ea_request er; |
b3b94faa DT |
416 | struct gfs2_holder i_gh; |
417 | int error; | |
418 | ||
40b78a32 SW |
419 | memset(&er, 0, sizeof(struct gfs2_ea_request)); |
420 | if (size) { | |
421 | er.er_data = buffer; | |
422 | er.er_data_len = size; | |
b3b94faa DT |
423 | } |
424 | ||
cca195c5 | 425 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh); |
b3b94faa DT |
426 | if (error) |
427 | return error; | |
428 | ||
3767ac21 | 429 | if (ip->i_eattr) { |
40b78a32 | 430 | struct ea_list ei = { .ei_er = &er, .ei_size = 0 }; |
b3b94faa DT |
431 | |
432 | error = ea_foreach(ip, ea_list_i, &ei); | |
433 | if (!error) | |
434 | error = ei.ei_size; | |
435 | } | |
436 | ||
437 | gfs2_glock_dq_uninit(&i_gh); | |
438 | ||
439 | return error; | |
440 | } | |
441 | ||
442 | /** | |
c551f66c LJ |
443 | * gfs2_iter_unstuffed - copies the unstuffed xattr data to/from the |
444 | * request buffer | |
cca195c5 SW |
445 | * @ip: The GFS2 inode |
446 | * @ea: The extended attribute header structure | |
1f981697 SW |
447 | * @din: The data to be copied in |
448 | * @dout: The data to be copied out (one of din,dout will be NULL) | |
b3b94faa DT |
449 | * |
450 | * Returns: errno | |
451 | */ | |
452 | ||
1f981697 SW |
453 | static int gfs2_iter_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea, |
454 | const char *din, char *dout) | |
b3b94faa | 455 | { |
feaa7bba | 456 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
457 | struct buffer_head **bh; |
458 | unsigned int amount = GFS2_EA_DATA_LEN(ea); | |
5c676f6d | 459 | unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize); |
b44b84d7 | 460 | __be64 *dataptrs = GFS2_EA2DATAPTRS(ea); |
b3b94faa DT |
461 | unsigned int x; |
462 | int error = 0; | |
1f981697 SW |
463 | unsigned char *pos; |
464 | unsigned cp_size; | |
b3b94faa | 465 | |
16c5f06f | 466 | bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS); |
b3b94faa DT |
467 | if (!bh) |
468 | return -ENOMEM; | |
469 | ||
470 | for (x = 0; x < nptrs; x++) { | |
c8d57703 | 471 | error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0, 0, |
7276b3b0 | 472 | bh + x); |
b3b94faa DT |
473 | if (error) { |
474 | while (x--) | |
475 | brelse(bh[x]); | |
476 | goto out; | |
477 | } | |
478 | dataptrs++; | |
479 | } | |
480 | ||
481 | for (x = 0; x < nptrs; x++) { | |
7276b3b0 | 482 | error = gfs2_meta_wait(sdp, bh[x]); |
b3b94faa DT |
483 | if (error) { |
484 | for (; x < nptrs; x++) | |
485 | brelse(bh[x]); | |
486 | goto out; | |
487 | } | |
488 | if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) { | |
489 | for (; x < nptrs; x++) | |
490 | brelse(bh[x]); | |
491 | error = -EIO; | |
492 | goto out; | |
493 | } | |
494 | ||
1f981697 SW |
495 | pos = bh[x]->b_data + sizeof(struct gfs2_meta_header); |
496 | cp_size = (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize; | |
b3b94faa | 497 | |
1f981697 SW |
498 | if (dout) { |
499 | memcpy(dout, pos, cp_size); | |
500 | dout += sdp->sd_jbsize; | |
501 | } | |
502 | ||
503 | if (din) { | |
350a9b0a | 504 | gfs2_trans_add_meta(ip->i_gl, bh[x]); |
1f981697 SW |
505 | memcpy(pos, din, cp_size); |
506 | din += sdp->sd_jbsize; | |
507 | } | |
b3b94faa | 508 | |
1f981697 | 509 | amount -= sdp->sd_jbsize; |
b3b94faa DT |
510 | brelse(bh[x]); |
511 | } | |
512 | ||
a91ea69f | 513 | out: |
b3b94faa | 514 | kfree(bh); |
b3b94faa DT |
515 | return error; |
516 | } | |
517 | ||
479c427d SW |
518 | static int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el, |
519 | char *data, size_t size) | |
b3b94faa | 520 | { |
40b78a32 SW |
521 | int ret; |
522 | size_t len = GFS2_EA_DATA_LEN(el->el_ea); | |
523 | if (len > size) | |
524 | return -ERANGE; | |
525 | ||
b3b94faa | 526 | if (GFS2_EA_IS_STUFFED(el->el_ea)) { |
40b78a32 SW |
527 | memcpy(data, GFS2_EA2DATA(el->el_ea), len); |
528 | return len; | |
529 | } | |
1f981697 | 530 | ret = gfs2_iter_unstuffed(ip, el->el_ea, NULL, data); |
40b78a32 SW |
531 | if (ret < 0) |
532 | return ret; | |
533 | return len; | |
b3b94faa DT |
534 | } |
535 | ||
479c427d SW |
536 | int gfs2_xattr_acl_get(struct gfs2_inode *ip, const char *name, char **ppdata) |
537 | { | |
538 | struct gfs2_ea_location el; | |
539 | int error; | |
540 | int len; | |
541 | char *data; | |
542 | ||
543 | error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, &el); | |
544 | if (error) | |
545 | return error; | |
546 | if (!el.el_ea) | |
547 | goto out; | |
548 | if (!GFS2_EA_DATA_LEN(el.el_ea)) | |
549 | goto out; | |
550 | ||
551 | len = GFS2_EA_DATA_LEN(el.el_ea); | |
552 | data = kmalloc(len, GFP_NOFS); | |
553 | error = -ENOMEM; | |
554 | if (data == NULL) | |
555 | goto out; | |
556 | ||
557 | error = gfs2_ea_get_copy(ip, &el, data, len); | |
114b80ce SW |
558 | if (error < 0) |
559 | kfree(data); | |
560 | else | |
561 | *ppdata = data; | |
479c427d SW |
562 | out: |
563 | brelse(el.el_bh); | |
564 | return error; | |
565 | } | |
566 | ||
b3b94faa | 567 | /** |
c551f66c | 568 | * __gfs2_xattr_get - Get a GFS2 extended attribute |
40b78a32 | 569 | * @inode: The inode |
40b78a32 SW |
570 | * @name: The name of the extended attribute |
571 | * @buffer: The buffer to write the result into | |
572 | * @size: The size of the buffer | |
431547b3 | 573 | * @type: The type of extended attribute |
b3b94faa DT |
574 | * |
575 | * Returns: actual size of data on success, -errno on error | |
576 | */ | |
1a39ba99 AV |
577 | static int __gfs2_xattr_get(struct inode *inode, const char *name, |
578 | void *buffer, size_t size, int type) | |
b3b94faa | 579 | { |
b296821a | 580 | struct gfs2_inode *ip = GFS2_I(inode); |
b3b94faa DT |
581 | struct gfs2_ea_location el; |
582 | int error; | |
583 | ||
3767ac21 | 584 | if (!ip->i_eattr) |
b3b94faa | 585 | return -ENODATA; |
40b78a32 SW |
586 | if (strlen(name) > GFS2_EA_MAX_NAME_LEN) |
587 | return -EINVAL; | |
b3b94faa | 588 | |
40b78a32 | 589 | error = gfs2_ea_find(ip, type, name, &el); |
b3b94faa DT |
590 | if (error) |
591 | return error; | |
592 | if (!el.el_ea) | |
593 | return -ENODATA; | |
86d00636 | 594 | if (size) |
40b78a32 SW |
595 | error = gfs2_ea_get_copy(ip, &el, buffer, size); |
596 | else | |
b3b94faa | 597 | error = GFS2_EA_DATA_LEN(el.el_ea); |
b3b94faa DT |
598 | brelse(el.el_bh); |
599 | ||
600 | return error; | |
601 | } | |
602 | ||
1a39ba99 AV |
603 | static int gfs2_xattr_get(const struct xattr_handler *handler, |
604 | struct dentry *unused, struct inode *inode, | |
605 | const char *name, void *buffer, size_t size) | |
606 | { | |
607 | struct gfs2_inode *ip = GFS2_I(inode); | |
608 | struct gfs2_holder gh; | |
1a39ba99 AV |
609 | int ret; |
610 | ||
611 | /* During lookup, SELinux calls this function with the glock locked. */ | |
612 | ||
613 | if (!gfs2_glock_is_locked_by_me(ip->i_gl)) { | |
614 | ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); | |
615 | if (ret) | |
616 | return ret; | |
d0920a9c AG |
617 | } else { |
618 | gfs2_holder_mark_uninitialized(&gh); | |
1a39ba99 AV |
619 | } |
620 | ret = __gfs2_xattr_get(inode, name, buffer, size, handler->flags); | |
d0920a9c | 621 | if (gfs2_holder_initialized(&gh)) |
1a39ba99 AV |
622 | gfs2_glock_dq_uninit(&gh); |
623 | return ret; | |
624 | } | |
625 | ||
b3b94faa DT |
626 | /** |
627 | * ea_alloc_blk - allocates a new block for extended attributes. | |
628 | * @ip: A pointer to the inode that's getting extended attributes | |
cca195c5 | 629 | * @bhp: Pointer to pointer to a struct buffer_head |
b3b94faa DT |
630 | * |
631 | * Returns: errno | |
632 | */ | |
633 | ||
634 | static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp) | |
635 | { | |
feaa7bba | 636 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa | 637 | struct gfs2_ea_header *ea; |
b45e41d7 | 638 | unsigned int n = 1; |
cd915493 | 639 | u64 block; |
09010978 | 640 | int error; |
b3b94faa | 641 | |
6e87ed0f | 642 | error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL); |
09010978 SW |
643 | if (error) |
644 | return error; | |
fbb27873 | 645 | gfs2_trans_remove_revoke(sdp, block, 1); |
b3b94faa | 646 | *bhp = gfs2_meta_new(ip->i_gl, block); |
350a9b0a | 647 | gfs2_trans_add_meta(ip->i_gl, *bhp); |
b3b94faa DT |
648 | gfs2_metatype_set(*bhp, GFS2_METATYPE_EA, GFS2_FORMAT_EA); |
649 | gfs2_buffer_clear_tail(*bhp, sizeof(struct gfs2_meta_header)); | |
650 | ||
651 | ea = GFS2_EA_BH2FIRST(*bhp); | |
652 | ea->ea_rec_len = cpu_to_be32(sdp->sd_jbsize); | |
653 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
654 | ea->ea_flags = GFS2_EAFLAG_LAST; | |
655 | ea->ea_num_ptrs = 0; | |
656 | ||
77658aad | 657 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa DT |
658 | |
659 | return 0; | |
660 | } | |
661 | ||
662 | /** | |
663 | * ea_write - writes the request info to an ea, creating new blocks if | |
664 | * necessary | |
cca195c5 SW |
665 | * @ip: inode that is being modified |
666 | * @ea: the location of the new ea in a block | |
b3b94faa DT |
667 | * @er: the write request |
668 | * | |
669 | * Note: does not update ea_rec_len or the GFS2_EAFLAG_LAST bin of ea_flags | |
670 | * | |
671 | * returns : errno | |
672 | */ | |
673 | ||
674 | static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea, | |
675 | struct gfs2_ea_request *er) | |
676 | { | |
feaa7bba | 677 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
09010978 | 678 | int error; |
b3b94faa DT |
679 | |
680 | ea->ea_data_len = cpu_to_be32(er->er_data_len); | |
681 | ea->ea_name_len = er->er_name_len; | |
682 | ea->ea_type = er->er_type; | |
683 | ea->__pad = 0; | |
684 | ||
685 | memcpy(GFS2_EA2NAME(ea), er->er_name, er->er_name_len); | |
686 | ||
687 | if (GFS2_EAREQ_SIZE_STUFFED(er) <= sdp->sd_jbsize) { | |
688 | ea->ea_num_ptrs = 0; | |
689 | memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len); | |
690 | } else { | |
b44b84d7 | 691 | __be64 *dataptr = GFS2_EA2DATAPTRS(ea); |
b3b94faa DT |
692 | const char *data = er->er_data; |
693 | unsigned int data_len = er->er_data_len; | |
694 | unsigned int copy; | |
695 | unsigned int x; | |
696 | ||
5c676f6d | 697 | ea->ea_num_ptrs = DIV_ROUND_UP(er->er_data_len, sdp->sd_jbsize); |
b3b94faa DT |
698 | for (x = 0; x < ea->ea_num_ptrs; x++) { |
699 | struct buffer_head *bh; | |
cd915493 | 700 | u64 block; |
b3b94faa | 701 | int mh_size = sizeof(struct gfs2_meta_header); |
b45e41d7 | 702 | unsigned int n = 1; |
b3b94faa | 703 | |
6e87ed0f | 704 | error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL); |
09010978 SW |
705 | if (error) |
706 | return error; | |
fbb27873 | 707 | gfs2_trans_remove_revoke(sdp, block, 1); |
b3b94faa | 708 | bh = gfs2_meta_new(ip->i_gl, block); |
350a9b0a | 709 | gfs2_trans_add_meta(ip->i_gl, bh); |
b3b94faa DT |
710 | gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED); |
711 | ||
77658aad | 712 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa | 713 | |
cca195c5 SW |
714 | copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize : |
715 | data_len; | |
b3b94faa DT |
716 | memcpy(bh->b_data + mh_size, data, copy); |
717 | if (copy < sdp->sd_jbsize) | |
718 | memset(bh->b_data + mh_size + copy, 0, | |
719 | sdp->sd_jbsize - copy); | |
720 | ||
cca195c5 | 721 | *dataptr++ = cpu_to_be64(bh->b_blocknr); |
b3b94faa DT |
722 | data += copy; |
723 | data_len -= copy; | |
724 | ||
725 | brelse(bh); | |
726 | } | |
727 | ||
728 | gfs2_assert_withdraw(sdp, !data_len); | |
729 | } | |
730 | ||
731 | return 0; | |
732 | } | |
733 | ||
734 | typedef int (*ea_skeleton_call_t) (struct gfs2_inode *ip, | |
cca195c5 | 735 | struct gfs2_ea_request *er, void *private); |
b3b94faa DT |
736 | |
737 | static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
738 | unsigned int blks, | |
cca195c5 | 739 | ea_skeleton_call_t skeleton_call, void *private) |
b3b94faa | 740 | { |
7b9cff46 | 741 | struct gfs2_alloc_parms ap = { .target = blks }; |
b3b94faa DT |
742 | int error; |
743 | ||
8e2e0047 BP |
744 | error = gfs2_rindex_update(GFS2_SB(&ip->i_inode)); |
745 | if (error) | |
746 | return error; | |
747 | ||
b8fbf471 | 748 | error = gfs2_quota_lock_check(ip, &ap); |
b3b94faa | 749 | if (error) |
5407e242 | 750 | return error; |
b3b94faa | 751 | |
7b9cff46 | 752 | error = gfs2_inplace_reserve(ip, &ap); |
b3b94faa DT |
753 | if (error) |
754 | goto out_gunlock_q; | |
755 | ||
feaa7bba | 756 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), |
71f890f7 | 757 | blks + gfs2_rg_blocks(ip, blks) + |
b3b94faa DT |
758 | RES_DINODE + RES_STATFS + RES_QUOTA, 0); |
759 | if (error) | |
760 | goto out_ipres; | |
761 | ||
762 | error = skeleton_call(ip, er, private); | |
763 | if (error) | |
764 | goto out_end_trans; | |
765 | ||
6862c44e | 766 | ip->i_inode.i_ctime = current_time(&ip->i_inode); |
937d3305 | 767 | __mark_inode_dirty(&ip->i_inode, I_DIRTY_DATASYNC); |
b3b94faa | 768 | |
a91ea69f | 769 | out_end_trans: |
feaa7bba | 770 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
a91ea69f | 771 | out_ipres: |
b3b94faa | 772 | gfs2_inplace_release(ip); |
a91ea69f | 773 | out_gunlock_q: |
b3b94faa | 774 | gfs2_quota_unlock(ip); |
b3b94faa DT |
775 | return error; |
776 | } | |
777 | ||
778 | static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
779 | void *private) | |
780 | { | |
781 | struct buffer_head *bh; | |
782 | int error; | |
783 | ||
784 | error = ea_alloc_blk(ip, &bh); | |
785 | if (error) | |
786 | return error; | |
787 | ||
3767ac21 | 788 | ip->i_eattr = bh->b_blocknr; |
b3b94faa DT |
789 | error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er); |
790 | ||
791 | brelse(bh); | |
792 | ||
793 | return error; | |
794 | } | |
795 | ||
c551f66c | 796 | /* |
b3b94faa | 797 | * ea_init - initializes a new eattr block |
b3b94faa DT |
798 | * |
799 | * Returns: errno | |
800 | */ | |
40b78a32 SW |
801 | static int ea_init(struct gfs2_inode *ip, int type, const char *name, |
802 | const void *data, size_t size) | |
b3b94faa | 803 | { |
40b78a32 | 804 | struct gfs2_ea_request er; |
feaa7bba | 805 | unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize; |
b3b94faa DT |
806 | unsigned int blks = 1; |
807 | ||
40b78a32 SW |
808 | er.er_type = type; |
809 | er.er_name = name; | |
810 | er.er_name_len = strlen(name); | |
811 | er.er_data = (void *)data; | |
812 | er.er_data_len = size; | |
813 | ||
814 | if (GFS2_EAREQ_SIZE_STUFFED(&er) > jbsize) | |
815 | blks += DIV_ROUND_UP(er.er_data_len, jbsize); | |
b3b94faa | 816 | |
40b78a32 | 817 | return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL); |
b3b94faa DT |
818 | } |
819 | ||
820 | static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea) | |
821 | { | |
cd915493 | 822 | u32 ea_size = GFS2_EA_SIZE(ea); |
568f4c96 SW |
823 | struct gfs2_ea_header *new = (struct gfs2_ea_header *)((char *)ea + |
824 | ea_size); | |
cd915493 | 825 | u32 new_size = GFS2_EA_REC_LEN(ea) - ea_size; |
b3b94faa DT |
826 | int last = ea->ea_flags & GFS2_EAFLAG_LAST; |
827 | ||
828 | ea->ea_rec_len = cpu_to_be32(ea_size); | |
829 | ea->ea_flags ^= last; | |
830 | ||
831 | new->ea_rec_len = cpu_to_be32(new_size); | |
832 | new->ea_flags = last; | |
833 | ||
834 | return new; | |
835 | } | |
836 | ||
837 | static void ea_set_remove_stuffed(struct gfs2_inode *ip, | |
838 | struct gfs2_ea_location *el) | |
839 | { | |
840 | struct gfs2_ea_header *ea = el->el_ea; | |
841 | struct gfs2_ea_header *prev = el->el_prev; | |
cd915493 | 842 | u32 len; |
b3b94faa | 843 | |
350a9b0a | 844 | gfs2_trans_add_meta(ip->i_gl, el->el_bh); |
b3b94faa DT |
845 | |
846 | if (!prev || !GFS2_EA_IS_STUFFED(ea)) { | |
847 | ea->ea_type = GFS2_EATYPE_UNUSED; | |
848 | return; | |
849 | } else if (GFS2_EA2NEXT(prev) != ea) { | |
850 | prev = GFS2_EA2NEXT(prev); | |
feaa7bba | 851 | gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), GFS2_EA2NEXT(prev) == ea); |
b3b94faa DT |
852 | } |
853 | ||
854 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
855 | prev->ea_rec_len = cpu_to_be32(len); | |
856 | ||
857 | if (GFS2_EA_IS_LAST(ea)) | |
858 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
859 | } | |
860 | ||
861 | struct ea_set { | |
862 | int ea_split; | |
863 | ||
864 | struct gfs2_ea_request *es_er; | |
865 | struct gfs2_ea_location *es_el; | |
866 | ||
867 | struct buffer_head *es_bh; | |
868 | struct gfs2_ea_header *es_ea; | |
869 | }; | |
870 | ||
871 | static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh, | |
872 | struct gfs2_ea_header *ea, struct ea_set *es) | |
873 | { | |
874 | struct gfs2_ea_request *er = es->es_er; | |
b3b94faa DT |
875 | int error; |
876 | ||
feaa7bba | 877 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0); |
b3b94faa DT |
878 | if (error) |
879 | return error; | |
880 | ||
350a9b0a | 881 | gfs2_trans_add_meta(ip->i_gl, bh); |
b3b94faa DT |
882 | |
883 | if (es->ea_split) | |
884 | ea = ea_split_ea(ea); | |
885 | ||
886 | ea_write(ip, ea, er); | |
887 | ||
888 | if (es->es_el) | |
889 | ea_set_remove_stuffed(ip, es->es_el); | |
890 | ||
078cd827 | 891 | ip->i_inode.i_ctime = current_time(&ip->i_inode); |
937d3305 | 892 | __mark_inode_dirty(&ip->i_inode, I_DIRTY_DATASYNC); |
6862c44e | 893 | |
feaa7bba | 894 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
895 | return error; |
896 | } | |
897 | ||
898 | static int ea_set_simple_alloc(struct gfs2_inode *ip, | |
899 | struct gfs2_ea_request *er, void *private) | |
900 | { | |
901 | struct ea_set *es = private; | |
902 | struct gfs2_ea_header *ea = es->es_ea; | |
903 | int error; | |
904 | ||
350a9b0a | 905 | gfs2_trans_add_meta(ip->i_gl, es->es_bh); |
b3b94faa DT |
906 | |
907 | if (es->ea_split) | |
908 | ea = ea_split_ea(ea); | |
909 | ||
910 | error = ea_write(ip, ea, er); | |
911 | if (error) | |
912 | return error; | |
913 | ||
914 | if (es->es_el) | |
915 | ea_set_remove_stuffed(ip, es->es_el); | |
916 | ||
917 | return 0; | |
918 | } | |
919 | ||
920 | static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh, | |
921 | struct gfs2_ea_header *ea, struct gfs2_ea_header *prev, | |
922 | void *private) | |
923 | { | |
924 | struct ea_set *es = private; | |
925 | unsigned int size; | |
926 | int stuffed; | |
927 | int error; | |
928 | ||
40b78a32 SW |
929 | stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len, |
930 | es->es_er->er_data_len, &size); | |
b3b94faa DT |
931 | |
932 | if (ea->ea_type == GFS2_EATYPE_UNUSED) { | |
933 | if (GFS2_EA_REC_LEN(ea) < size) | |
934 | return 0; | |
935 | if (!GFS2_EA_IS_STUFFED(ea)) { | |
936 | error = ea_remove_unstuffed(ip, bh, ea, prev, 1); | |
937 | if (error) | |
938 | return error; | |
939 | } | |
940 | es->ea_split = 0; | |
941 | } else if (GFS2_EA_REC_LEN(ea) - GFS2_EA_SIZE(ea) >= size) | |
942 | es->ea_split = 1; | |
943 | else | |
944 | return 0; | |
945 | ||
946 | if (stuffed) { | |
947 | error = ea_set_simple_noalloc(ip, bh, ea, es); | |
948 | if (error) | |
949 | return error; | |
950 | } else { | |
951 | unsigned int blks; | |
952 | ||
953 | es->es_bh = bh; | |
954 | es->es_ea = ea; | |
5c676f6d | 955 | blks = 2 + DIV_ROUND_UP(es->es_er->er_data_len, |
feaa7bba | 956 | GFS2_SB(&ip->i_inode)->sd_jbsize); |
b3b94faa DT |
957 | |
958 | error = ea_alloc_skeleton(ip, es->es_er, blks, | |
959 | ea_set_simple_alloc, es); | |
960 | if (error) | |
961 | return error; | |
962 | } | |
963 | ||
964 | return 1; | |
965 | } | |
966 | ||
967 | static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er, | |
968 | void *private) | |
969 | { | |
feaa7bba | 970 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa | 971 | struct buffer_head *indbh, *newbh; |
b44b84d7 | 972 | __be64 *eablk; |
b3b94faa DT |
973 | int error; |
974 | int mh_size = sizeof(struct gfs2_meta_header); | |
975 | ||
383f01fb | 976 | if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) { |
b44b84d7 | 977 | __be64 *end; |
b3b94faa | 978 | |
c8d57703 | 979 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, 0, |
7276b3b0 | 980 | &indbh); |
b3b94faa DT |
981 | if (error) |
982 | return error; | |
983 | ||
984 | if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) { | |
985 | error = -EIO; | |
986 | goto out; | |
987 | } | |
988 | ||
b44b84d7 | 989 | eablk = (__be64 *)(indbh->b_data + mh_size); |
b3b94faa DT |
990 | end = eablk + sdp->sd_inptrs; |
991 | ||
992 | for (; eablk < end; eablk++) | |
993 | if (!*eablk) | |
994 | break; | |
995 | ||
996 | if (eablk == end) { | |
997 | error = -ENOSPC; | |
998 | goto out; | |
999 | } | |
1000 | ||
350a9b0a | 1001 | gfs2_trans_add_meta(ip->i_gl, indbh); |
b3b94faa | 1002 | } else { |
cd915493 | 1003 | u64 blk; |
b45e41d7 | 1004 | unsigned int n = 1; |
6e87ed0f | 1005 | error = gfs2_alloc_blocks(ip, &blk, &n, 0, NULL); |
09010978 SW |
1006 | if (error) |
1007 | return error; | |
fbb27873 | 1008 | gfs2_trans_remove_revoke(sdp, blk, 1); |
b3b94faa | 1009 | indbh = gfs2_meta_new(ip->i_gl, blk); |
350a9b0a | 1010 | gfs2_trans_add_meta(ip->i_gl, indbh); |
b3b94faa DT |
1011 | gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN); |
1012 | gfs2_buffer_clear_tail(indbh, mh_size); | |
1013 | ||
b44b84d7 | 1014 | eablk = (__be64 *)(indbh->b_data + mh_size); |
3767ac21 SW |
1015 | *eablk = cpu_to_be64(ip->i_eattr); |
1016 | ip->i_eattr = blk; | |
383f01fb | 1017 | ip->i_diskflags |= GFS2_DIF_EA_INDIRECT; |
77658aad | 1018 | gfs2_add_inode_blocks(&ip->i_inode, 1); |
b3b94faa DT |
1019 | |
1020 | eablk++; | |
1021 | } | |
1022 | ||
1023 | error = ea_alloc_blk(ip, &newbh); | |
1024 | if (error) | |
1025 | goto out; | |
1026 | ||
cd915493 | 1027 | *eablk = cpu_to_be64((u64)newbh->b_blocknr); |
b3b94faa DT |
1028 | error = ea_write(ip, GFS2_EA_BH2FIRST(newbh), er); |
1029 | brelse(newbh); | |
1030 | if (error) | |
1031 | goto out; | |
1032 | ||
1033 | if (private) | |
cca195c5 | 1034 | ea_set_remove_stuffed(ip, private); |
b3b94faa | 1035 | |
a91ea69f | 1036 | out: |
b3b94faa | 1037 | brelse(indbh); |
b3b94faa DT |
1038 | return error; |
1039 | } | |
1040 | ||
40b78a32 SW |
1041 | static int ea_set_i(struct gfs2_inode *ip, int type, const char *name, |
1042 | const void *value, size_t size, struct gfs2_ea_location *el) | |
b3b94faa | 1043 | { |
40b78a32 | 1044 | struct gfs2_ea_request er; |
b3b94faa DT |
1045 | struct ea_set es; |
1046 | unsigned int blks = 2; | |
1047 | int error; | |
1048 | ||
40b78a32 SW |
1049 | er.er_type = type; |
1050 | er.er_name = name; | |
1051 | er.er_data = (void *)value; | |
1052 | er.er_name_len = strlen(name); | |
1053 | er.er_data_len = size; | |
1054 | ||
b3b94faa | 1055 | memset(&es, 0, sizeof(struct ea_set)); |
40b78a32 | 1056 | es.es_er = &er; |
b3b94faa DT |
1057 | es.es_el = el; |
1058 | ||
1059 | error = ea_foreach(ip, ea_set_simple, &es); | |
1060 | if (error > 0) | |
1061 | return 0; | |
1062 | if (error) | |
1063 | return error; | |
1064 | ||
383f01fb | 1065 | if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) |
b3b94faa | 1066 | blks++; |
40b78a32 SW |
1067 | if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize) |
1068 | blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize); | |
b3b94faa | 1069 | |
40b78a32 | 1070 | return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el); |
b3b94faa DT |
1071 | } |
1072 | ||
1073 | static int ea_set_remove_unstuffed(struct gfs2_inode *ip, | |
1074 | struct gfs2_ea_location *el) | |
1075 | { | |
1076 | if (el->el_prev && GFS2_EA2NEXT(el->el_prev) != el->el_ea) { | |
1077 | el->el_prev = GFS2_EA2NEXT(el->el_prev); | |
feaa7bba | 1078 | gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), |
b3b94faa DT |
1079 | GFS2_EA2NEXT(el->el_prev) == el->el_ea); |
1080 | } | |
1081 | ||
86d00636 | 1082 | return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev, 0); |
b3b94faa DT |
1083 | } |
1084 | ||
b3b94faa DT |
1085 | static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el) |
1086 | { | |
1087 | struct gfs2_ea_header *ea = el->el_ea; | |
1088 | struct gfs2_ea_header *prev = el->el_prev; | |
b3b94faa DT |
1089 | int error; |
1090 | ||
feaa7bba | 1091 | error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0); |
b3b94faa DT |
1092 | if (error) |
1093 | return error; | |
1094 | ||
350a9b0a | 1095 | gfs2_trans_add_meta(ip->i_gl, el->el_bh); |
b3b94faa DT |
1096 | |
1097 | if (prev) { | |
cd915493 | 1098 | u32 len; |
b3b94faa DT |
1099 | |
1100 | len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea); | |
1101 | prev->ea_rec_len = cpu_to_be32(len); | |
1102 | ||
1103 | if (GFS2_EA_IS_LAST(ea)) | |
1104 | prev->ea_flags |= GFS2_EAFLAG_LAST; | |
40b78a32 | 1105 | } else { |
b3b94faa | 1106 | ea->ea_type = GFS2_EATYPE_UNUSED; |
40b78a32 | 1107 | } |
b3b94faa | 1108 | |
6862c44e | 1109 | ip->i_inode.i_ctime = current_time(&ip->i_inode); |
937d3305 | 1110 | __mark_inode_dirty(&ip->i_inode, I_DIRTY_DATASYNC); |
b3b94faa | 1111 | |
feaa7bba | 1112 | gfs2_trans_end(GFS2_SB(&ip->i_inode)); |
b3b94faa DT |
1113 | |
1114 | return error; | |
1115 | } | |
1116 | ||
40b78a32 SW |
1117 | /** |
1118 | * gfs2_xattr_remove - Remove a GFS2 extended attribute | |
431547b3 | 1119 | * @ip: The inode |
40b78a32 SW |
1120 | * @type: The type of the extended attribute |
1121 | * @name: The name of the extended attribute | |
1122 | * | |
1123 | * This is not called directly by the VFS since we use the (common) | |
1124 | * scheme of making a "set with NULL data" mean a remove request. Note | |
1125 | * that this is different from a set with zero length data. | |
1126 | * | |
1127 | * Returns: 0, or errno on failure | |
1128 | */ | |
1129 | ||
431547b3 | 1130 | static int gfs2_xattr_remove(struct gfs2_inode *ip, int type, const char *name) |
b3b94faa DT |
1131 | { |
1132 | struct gfs2_ea_location el; | |
1133 | int error; | |
1134 | ||
3767ac21 | 1135 | if (!ip->i_eattr) |
b3b94faa DT |
1136 | return -ENODATA; |
1137 | ||
40b78a32 | 1138 | error = gfs2_ea_find(ip, type, name, &el); |
b3b94faa DT |
1139 | if (error) |
1140 | return error; | |
1141 | if (!el.el_ea) | |
1142 | return -ENODATA; | |
1143 | ||
1144 | if (GFS2_EA_IS_STUFFED(el.el_ea)) | |
1145 | error = ea_remove_stuffed(ip, &el); | |
1146 | else | |
40b78a32 | 1147 | error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0); |
b3b94faa DT |
1148 | |
1149 | brelse(el.el_bh); | |
1150 | ||
1151 | return error; | |
1152 | } | |
1153 | ||
1154 | /** | |
431547b3 | 1155 | * __gfs2_xattr_set - Set (or remove) a GFS2 extended attribute |
c551f66c | 1156 | * @inode: The inode |
40b78a32 SW |
1157 | * @name: The name of the extended attribute |
1158 | * @value: The value of the extended attribute (NULL for remove) | |
1159 | * @size: The size of the @value argument | |
1160 | * @flags: Create or Replace | |
431547b3 | 1161 | * @type: The type of the extended attribute |
b3b94faa | 1162 | * |
40b78a32 SW |
1163 | * See gfs2_xattr_remove() for details of the removal of xattrs. |
1164 | * | |
1165 | * Returns: 0 or errno on failure | |
b3b94faa DT |
1166 | */ |
1167 | ||
431547b3 CH |
1168 | int __gfs2_xattr_set(struct inode *inode, const char *name, |
1169 | const void *value, size_t size, int flags, int type) | |
b3b94faa | 1170 | { |
40b78a32 | 1171 | struct gfs2_inode *ip = GFS2_I(inode); |
431547b3 | 1172 | struct gfs2_sbd *sdp = GFS2_SB(inode); |
40b78a32 SW |
1173 | struct gfs2_ea_location el; |
1174 | unsigned int namel = strlen(name); | |
b3b94faa DT |
1175 | int error; |
1176 | ||
40b78a32 SW |
1177 | if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) |
1178 | return -EPERM; | |
1179 | if (namel > GFS2_EA_MAX_NAME_LEN) | |
1180 | return -ERANGE; | |
b3b94faa | 1181 | |
54aae14b EF |
1182 | if (value == NULL) { |
1183 | error = gfs2_xattr_remove(ip, type, name); | |
1184 | if (error == -ENODATA && !(flags & XATTR_REPLACE)) | |
1185 | error = 0; | |
1186 | return error; | |
1187 | } | |
40b78a32 SW |
1188 | |
1189 | if (ea_check_size(sdp, namel, size)) | |
1190 | return -ERANGE; | |
1191 | ||
1192 | if (!ip->i_eattr) { | |
1193 | if (flags & XATTR_REPLACE) | |
1194 | return -ENODATA; | |
1195 | return ea_init(ip, type, name, value, size); | |
1196 | } | |
1197 | ||
1198 | error = gfs2_ea_find(ip, type, name, &el); | |
b3b94faa DT |
1199 | if (error) |
1200 | return error; | |
1201 | ||
40b78a32 SW |
1202 | if (el.el_ea) { |
1203 | if (ip->i_diskflags & GFS2_DIF_APPENDONLY) { | |
1204 | brelse(el.el_bh); | |
1205 | return -EPERM; | |
1206 | } | |
b3b94faa | 1207 | |
40b78a32 SW |
1208 | error = -EEXIST; |
1209 | if (!(flags & XATTR_CREATE)) { | |
1210 | int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea); | |
1211 | error = ea_set_i(ip, type, name, value, size, &el); | |
1212 | if (!error && unstuffed) | |
1213 | ea_set_remove_unstuffed(ip, &el); | |
1214 | } | |
1215 | ||
1216 | brelse(el.el_bh); | |
1217 | return error; | |
1218 | } | |
1219 | ||
1220 | error = -ENODATA; | |
1221 | if (!(flags & XATTR_REPLACE)) | |
1222 | error = ea_set_i(ip, type, name, value, size, NULL); | |
b3b94faa DT |
1223 | |
1224 | return error; | |
1225 | } | |
1226 | ||
d9a82a04 | 1227 | static int gfs2_xattr_set(const struct xattr_handler *handler, |
39f60c1c | 1228 | struct mnt_idmap *idmap, |
59301226 AV |
1229 | struct dentry *unused, struct inode *inode, |
1230 | const char *name, const void *value, | |
1231 | size_t size, int flags) | |
431547b3 | 1232 | { |
1a39ba99 AV |
1233 | struct gfs2_inode *ip = GFS2_I(inode); |
1234 | struct gfs2_holder gh; | |
1235 | int ret; | |
1236 | ||
2fba46a0 | 1237 | ret = gfs2_qa_get(ip); |
1a39ba99 AV |
1238 | if (ret) |
1239 | return ret; | |
1240 | ||
d0920a9c AG |
1241 | /* May be called from gfs_setattr with the glock locked. */ |
1242 | ||
1243 | if (!gfs2_glock_is_locked_by_me(ip->i_gl)) { | |
1244 | ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh); | |
1245 | if (ret) | |
2fba46a0 | 1246 | goto out; |
d0920a9c | 1247 | } else { |
2fba46a0 BP |
1248 | if (WARN_ON_ONCE(ip->i_gl->gl_state != LM_ST_EXCLUSIVE)) { |
1249 | ret = -EIO; | |
1250 | goto out; | |
1251 | } | |
d0920a9c AG |
1252 | gfs2_holder_mark_uninitialized(&gh); |
1253 | } | |
1a39ba99 | 1254 | ret = __gfs2_xattr_set(inode, name, value, size, flags, handler->flags); |
d0920a9c AG |
1255 | if (gfs2_holder_initialized(&gh)) |
1256 | gfs2_glock_dq_uninit(&gh); | |
2fba46a0 BP |
1257 | out: |
1258 | gfs2_qa_put(ip); | |
1a39ba99 | 1259 | return ret; |
431547b3 CH |
1260 | } |
1261 | ||
b3b94faa DT |
1262 | static int ea_dealloc_indirect(struct gfs2_inode *ip) |
1263 | { | |
feaa7bba | 1264 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa | 1265 | struct gfs2_rgrp_list rlist; |
0ddeded4 | 1266 | struct gfs2_rgrpd *rgd; |
b3b94faa | 1267 | struct buffer_head *indbh, *dibh; |
b44b84d7 | 1268 | __be64 *eablk, *end; |
b3b94faa | 1269 | unsigned int rg_blocks = 0; |
cd915493 | 1270 | u64 bstart = 0; |
b3b94faa DT |
1271 | unsigned int blen = 0; |
1272 | unsigned int blks = 0; | |
1273 | unsigned int x; | |
1274 | int error; | |
1275 | ||
5e2f7d61 BP |
1276 | error = gfs2_rindex_update(sdp); |
1277 | if (error) | |
1278 | return error; | |
1279 | ||
b3b94faa DT |
1280 | memset(&rlist, 0, sizeof(struct gfs2_rgrp_list)); |
1281 | ||
c8d57703 | 1282 | error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, 0, &indbh); |
b3b94faa DT |
1283 | if (error) |
1284 | return error; | |
1285 | ||
1286 | if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) { | |
1287 | error = -EIO; | |
1288 | goto out; | |
1289 | } | |
1290 | ||
b44b84d7 | 1291 | eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header)); |
b3b94faa DT |
1292 | end = eablk + sdp->sd_inptrs; |
1293 | ||
1294 | for (; eablk < end; eablk++) { | |
cd915493 | 1295 | u64 bn; |
b3b94faa DT |
1296 | |
1297 | if (!*eablk) | |
1298 | break; | |
1299 | bn = be64_to_cpu(*eablk); | |
1300 | ||
1301 | if (bstart + blen == bn) | |
1302 | blen++; | |
1303 | else { | |
1304 | if (bstart) | |
70b0c365 | 1305 | gfs2_rlist_add(ip, &rlist, bstart); |
b3b94faa DT |
1306 | bstart = bn; |
1307 | blen = 1; | |
1308 | } | |
1309 | blks++; | |
1310 | } | |
1311 | if (bstart) | |
70b0c365 | 1312 | gfs2_rlist_add(ip, &rlist, bstart); |
b3b94faa DT |
1313 | else |
1314 | goto out; | |
1315 | ||
44dab005 | 1316 | gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, LM_FLAG_NODE_SCOPE); |
b3b94faa DT |
1317 | |
1318 | for (x = 0; x < rlist.rl_rgrps; x++) { | |
0ddeded4 | 1319 | rgd = gfs2_glock2rgrp(rlist.rl_ghs[x].gh_gl); |
bb8d8a6f | 1320 | rg_blocks += rgd->rd_length; |
b3b94faa DT |
1321 | } |
1322 | ||
1323 | error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs); | |
1324 | if (error) | |
1325 | goto out_rlist_free; | |
1326 | ||
cca195c5 SW |
1327 | error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE + RES_INDIRECT + |
1328 | RES_STATFS + RES_QUOTA, blks); | |
b3b94faa DT |
1329 | if (error) |
1330 | goto out_gunlock; | |
1331 | ||
350a9b0a | 1332 | gfs2_trans_add_meta(ip->i_gl, indbh); |
b3b94faa | 1333 | |
b44b84d7 | 1334 | eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header)); |
b3b94faa | 1335 | bstart = 0; |
0ddeded4 | 1336 | rgd = NULL; |
b3b94faa DT |
1337 | blen = 0; |
1338 | ||
1339 | for (; eablk < end; eablk++) { | |
cd915493 | 1340 | u64 bn; |
b3b94faa DT |
1341 | |
1342 | if (!*eablk) | |
1343 | break; | |
1344 | bn = be64_to_cpu(*eablk); | |
1345 | ||
1346 | if (bstart + blen == bn) | |
1347 | blen++; | |
1348 | else { | |
1349 | if (bstart) | |
0ddeded4 | 1350 | gfs2_free_meta(ip, rgd, bstart, blen); |
b3b94faa | 1351 | bstart = bn; |
0ddeded4 | 1352 | rgd = gfs2_blk2rgrpd(sdp, bstart, true); |
b3b94faa DT |
1353 | blen = 1; |
1354 | } | |
1355 | ||
1356 | *eablk = 0; | |
77658aad | 1357 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa DT |
1358 | } |
1359 | if (bstart) | |
0ddeded4 | 1360 | gfs2_free_meta(ip, rgd, bstart, blen); |
b3b94faa | 1361 | |
383f01fb | 1362 | ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT; |
b3b94faa DT |
1363 | |
1364 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1365 | if (!error) { | |
350a9b0a | 1366 | gfs2_trans_add_meta(ip->i_gl, dibh); |
539e5d6b | 1367 | gfs2_dinode_out(ip, dibh->b_data); |
b3b94faa DT |
1368 | brelse(dibh); |
1369 | } | |
1370 | ||
1371 | gfs2_trans_end(sdp); | |
1372 | ||
a91ea69f | 1373 | out_gunlock: |
b3b94faa | 1374 | gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs); |
a91ea69f | 1375 | out_rlist_free: |
b3b94faa | 1376 | gfs2_rlist_free(&rlist); |
a91ea69f | 1377 | out: |
b3b94faa | 1378 | brelse(indbh); |
b3b94faa DT |
1379 | return error; |
1380 | } | |
1381 | ||
1382 | static int ea_dealloc_block(struct gfs2_inode *ip) | |
1383 | { | |
feaa7bba | 1384 | struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
b3b94faa DT |
1385 | struct gfs2_rgrpd *rgd; |
1386 | struct buffer_head *dibh; | |
564e12b1 | 1387 | struct gfs2_holder gh; |
b3b94faa DT |
1388 | int error; |
1389 | ||
5e2f7d61 BP |
1390 | error = gfs2_rindex_update(sdp); |
1391 | if (error) | |
1392 | return error; | |
1393 | ||
66fc061b | 1394 | rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr, 1); |
b3b94faa DT |
1395 | if (!rgd) { |
1396 | gfs2_consist_inode(ip); | |
1397 | return -EIO; | |
1398 | } | |
1399 | ||
4fc7ec31 BP |
1400 | error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, |
1401 | LM_FLAG_NODE_SCOPE, &gh); | |
b3b94faa DT |
1402 | if (error) |
1403 | return error; | |
1404 | ||
cca195c5 SW |
1405 | error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_DINODE + RES_STATFS + |
1406 | RES_QUOTA, 1); | |
b3b94faa DT |
1407 | if (error) |
1408 | goto out_gunlock; | |
1409 | ||
0ddeded4 | 1410 | gfs2_free_meta(ip, rgd, ip->i_eattr, 1); |
b3b94faa | 1411 | |
3767ac21 | 1412 | ip->i_eattr = 0; |
77658aad | 1413 | gfs2_add_inode_blocks(&ip->i_inode, -1); |
b3b94faa | 1414 | |
38552ff6 AG |
1415 | if (likely(!test_bit(GIF_ALLOC_FAILED, &ip->i_flags))) { |
1416 | error = gfs2_meta_inode_buffer(ip, &dibh); | |
1417 | if (!error) { | |
1418 | gfs2_trans_add_meta(ip->i_gl, dibh); | |
1419 | gfs2_dinode_out(ip, dibh->b_data); | |
1420 | brelse(dibh); | |
1421 | } | |
b3b94faa DT |
1422 | } |
1423 | ||
1424 | gfs2_trans_end(sdp); | |
1425 | ||
a91ea69f | 1426 | out_gunlock: |
564e12b1 | 1427 | gfs2_glock_dq_uninit(&gh); |
b3b94faa DT |
1428 | return error; |
1429 | } | |
1430 | ||
1431 | /** | |
1432 | * gfs2_ea_dealloc - deallocate the extended attribute fork | |
1433 | * @ip: the inode | |
1434 | * | |
1435 | * Returns: errno | |
1436 | */ | |
1437 | ||
1438 | int gfs2_ea_dealloc(struct gfs2_inode *ip) | |
1439 | { | |
b3b94faa DT |
1440 | int error; |
1441 | ||
8e2e0047 BP |
1442 | error = gfs2_rindex_update(GFS2_SB(&ip->i_inode)); |
1443 | if (error) | |
1444 | return error; | |
1445 | ||
f4108a60 | 1446 | error = gfs2_quota_hold(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); |
b3b94faa | 1447 | if (error) |
5407e242 | 1448 | return error; |
b3b94faa | 1449 | |
38552ff6 AG |
1450 | if (likely(!test_bit(GIF_ALLOC_FAILED, &ip->i_flags))) { |
1451 | error = ea_foreach(ip, ea_dealloc_unstuffed, NULL); | |
b3b94faa | 1452 | if (error) |
8339ee54 | 1453 | goto out_quota; |
38552ff6 AG |
1454 | |
1455 | if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) { | |
1456 | error = ea_dealloc_indirect(ip); | |
1457 | if (error) | |
1458 | goto out_quota; | |
1459 | } | |
b3b94faa DT |
1460 | } |
1461 | ||
1462 | error = ea_dealloc_block(ip); | |
1463 | ||
a91ea69f | 1464 | out_quota: |
b3b94faa | 1465 | gfs2_quota_unhold(ip); |
b3b94faa DT |
1466 | return error; |
1467 | } | |
1468 | ||
b7bb0a12 | 1469 | static const struct xattr_handler gfs2_xattr_user_handler = { |
40b78a32 | 1470 | .prefix = XATTR_USER_PREFIX, |
431547b3 CH |
1471 | .flags = GFS2_EATYPE_USR, |
1472 | .get = gfs2_xattr_get, | |
1473 | .set = gfs2_xattr_set, | |
40b78a32 SW |
1474 | }; |
1475 | ||
b7bb0a12 | 1476 | static const struct xattr_handler gfs2_xattr_security_handler = { |
40b78a32 | 1477 | .prefix = XATTR_SECURITY_PREFIX, |
431547b3 CH |
1478 | .flags = GFS2_EATYPE_SECURITY, |
1479 | .get = gfs2_xattr_get, | |
1480 | .set = gfs2_xattr_set, | |
40b78a32 SW |
1481 | }; |
1482 | ||
866eef48 AG |
1483 | static bool |
1484 | gfs2_xattr_trusted_list(struct dentry *dentry) | |
1485 | { | |
1486 | return capable(CAP_SYS_ADMIN); | |
1487 | } | |
1488 | ||
1489 | static const struct xattr_handler gfs2_xattr_trusted_handler = { | |
1490 | .prefix = XATTR_TRUSTED_PREFIX, | |
1491 | .flags = GFS2_EATYPE_TRUSTED, | |
1492 | .list = gfs2_xattr_trusted_list, | |
1493 | .get = gfs2_xattr_get, | |
1494 | .set = gfs2_xattr_set, | |
1495 | }; | |
1496 | ||
1497 | const struct xattr_handler *gfs2_xattr_handlers_max[] = { | |
1498 | /* GFS2_FS_FORMAT_MAX */ | |
1499 | &gfs2_xattr_trusted_handler, | |
1500 | ||
1501 | /* GFS2_FS_FORMAT_MIN */ | |
40b78a32 SW |
1502 | &gfs2_xattr_user_handler, |
1503 | &gfs2_xattr_security_handler, | |
40b78a32 SW |
1504 | NULL, |
1505 | }; | |
1506 | ||
866eef48 | 1507 | const struct xattr_handler **gfs2_xattr_handlers_min = gfs2_xattr_handlers_max + 1; |