1
2#include <linux/ceph/ceph_debug.h>
3#include <linux/ceph/pagelist.h>
4
5#include "super.h"
6#include "mds_client.h"
7
8#include <linux/ceph/decode.h>
9
10#include <linux/xattr.h>
11#include <linux/security.h>
12#include <linux/posix_acl_xattr.h>
13#include <linux/slab.h>
14
15#define XATTR_CEPH_PREFIX "ceph."
16#define XATTR_CEPH_PREFIX_LEN (sizeof (XATTR_CEPH_PREFIX) - 1)
17
18static int __remove_xattr(struct ceph_inode_info *ci,
19 struct ceph_inode_xattr *xattr);
20
21static bool ceph_is_valid_xattr(const char *name)
22{
23 return !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) ||
24 !strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN) ||
25 !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) ||
26 !strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
27}
28
29
30
31
32
33struct ceph_vxattr {
34 char *name;
35 size_t name_size;
36 ssize_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val,
37 size_t size);
38 bool (*exists_cb)(struct ceph_inode_info *ci);
39 unsigned int flags;
40};
41
42#define VXATTR_FLAG_READONLY (1<<0)
43#define VXATTR_FLAG_HIDDEN (1<<1)
44#define VXATTR_FLAG_RSTAT (1<<2)
45#define VXATTR_FLAG_DIRSTAT (1<<3)
46
47
48
49static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci)
50{
51 struct ceph_file_layout *fl = &ci->i_layout;
52 return (fl->stripe_unit > 0 || fl->stripe_count > 0 ||
53 fl->object_size > 0 || fl->pool_id >= 0 ||
54 rcu_dereference_raw(fl->pool_ns) != NULL);
55}
56
57static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
58 size_t size)
59{
60 struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
61 struct ceph_osd_client *osdc = &fsc->client->osdc;
62 struct ceph_string *pool_ns;
63 s64 pool = ci->i_layout.pool_id;
64 const char *pool_name;
65 const char *ns_field = " pool_namespace=";
66 char buf[128];
67 size_t len, total_len = 0;
68 ssize_t ret;
69
70 pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
71
72 dout("ceph_vxattrcb_layout %p\n", &ci->vfs_inode);
73 down_read(&osdc->lock);
74 pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
75 if (pool_name) {
76 len = snprintf(buf, sizeof(buf),
77 "stripe_unit=%u stripe_count=%u object_size=%u pool=",
78 ci->i_layout.stripe_unit, ci->i_layout.stripe_count,
79 ci->i_layout.object_size);
80 total_len = len + strlen(pool_name);
81 } else {
82 len = snprintf(buf, sizeof(buf),
83 "stripe_unit=%u stripe_count=%u object_size=%u pool=%lld",
84 ci->i_layout.stripe_unit, ci->i_layout.stripe_count,
85 ci->i_layout.object_size, pool);
86 total_len = len;
87 }
88
89 if (pool_ns)
90 total_len += strlen(ns_field) + pool_ns->len;
91
92 ret = total_len;
93 if (size >= total_len) {
94 memcpy(val, buf, len);
95 ret = len;
96 if (pool_name) {
97 len = strlen(pool_name);
98 memcpy(val + ret, pool_name, len);
99 ret += len;
100 }
101 if (pool_ns) {
102 len = strlen(ns_field);
103 memcpy(val + ret, ns_field, len);
104 ret += len;
105 memcpy(val + ret, pool_ns->str, pool_ns->len);
106 ret += pool_ns->len;
107 }
108 }
109 up_read(&osdc->lock);
110 ceph_put_string(pool_ns);
111 return ret;
112}
113
114
115
116
117
118
119
120static __printf(3, 4)
121int ceph_fmt_xattr(char *val, size_t size, const char *fmt, ...)
122{
123 int ret;
124 va_list args;
125 char buf[96];
126
127 va_start(args, fmt);
128 ret = vsnprintf(buf, size ? sizeof(buf) : 0, fmt, args);
129 va_end(args);
130
131
132 if (size && ret + 1 > sizeof(buf)) {
133 WARN_ONCE(true, "Returned length too big (%d)", ret);
134 return -E2BIG;
135 }
136
137 if (ret <= size)
138 memcpy(val, buf, ret);
139 return ret;
140}
141
142static ssize_t ceph_vxattrcb_layout_stripe_unit(struct ceph_inode_info *ci,
143 char *val, size_t size)
144{
145 return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_unit);
146}
147
148static ssize_t ceph_vxattrcb_layout_stripe_count(struct ceph_inode_info *ci,
149 char *val, size_t size)
150{
151 return ceph_fmt_xattr(val, size, "%u", ci->i_layout.stripe_count);
152}
153
154static ssize_t ceph_vxattrcb_layout_object_size(struct ceph_inode_info *ci,
155 char *val, size_t size)
156{
157 return ceph_fmt_xattr(val, size, "%u", ci->i_layout.object_size);
158}
159
160static ssize_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,
161 char *val, size_t size)
162{
163 ssize_t ret;
164 struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
165 struct ceph_osd_client *osdc = &fsc->client->osdc;
166 s64 pool = ci->i_layout.pool_id;
167 const char *pool_name;
168
169 down_read(&osdc->lock);
170 pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
171 if (pool_name) {
172 ret = strlen(pool_name);
173 if (ret <= size)
174 memcpy(val, pool_name, ret);
175 } else {
176 ret = ceph_fmt_xattr(val, size, "%lld", pool);
177 }
178 up_read(&osdc->lock);
179 return ret;
180}
181
182static ssize_t ceph_vxattrcb_layout_pool_namespace(struct ceph_inode_info *ci,
183 char *val, size_t size)
184{
185 ssize_t ret = 0;
186 struct ceph_string *ns = ceph_try_get_string(ci->i_layout.pool_ns);
187
188 if (ns) {
189 ret = ns->len;
190 if (ret <= size)
191 memcpy(val, ns->str, ret);
192 ceph_put_string(ns);
193 }
194 return ret;
195}
196
197
198
199static ssize_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val,
200 size_t size)
201{
202 return ceph_fmt_xattr(val, size, "%lld", ci->i_files + ci->i_subdirs);
203}
204
205static ssize_t ceph_vxattrcb_dir_files(struct ceph_inode_info *ci, char *val,
206 size_t size)
207{
208 return ceph_fmt_xattr(val, size, "%lld", ci->i_files);
209}
210
211static ssize_t ceph_vxattrcb_dir_subdirs(struct ceph_inode_info *ci, char *val,
212 size_t size)
213{
214 return ceph_fmt_xattr(val, size, "%lld", ci->i_subdirs);
215}
216
217static ssize_t ceph_vxattrcb_dir_rentries(struct ceph_inode_info *ci, char *val,
218 size_t size)
219{
220 return ceph_fmt_xattr(val, size, "%lld",
221 ci->i_rfiles + ci->i_rsubdirs);
222}
223
224static ssize_t ceph_vxattrcb_dir_rfiles(struct ceph_inode_info *ci, char *val,
225 size_t size)
226{
227 return ceph_fmt_xattr(val, size, "%lld", ci->i_rfiles);
228}
229
230static ssize_t ceph_vxattrcb_dir_rsubdirs(struct ceph_inode_info *ci, char *val,
231 size_t size)
232{
233 return ceph_fmt_xattr(val, size, "%lld", ci->i_rsubdirs);
234}
235
236static ssize_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,
237 size_t size)
238{
239 return ceph_fmt_xattr(val, size, "%lld", ci->i_rbytes);
240}
241
242static ssize_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
243 size_t size)
244{
245 return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_rctime.tv_sec,
246 ci->i_rctime.tv_nsec);
247}
248
249
250static bool ceph_vxattrcb_dir_pin_exists(struct ceph_inode_info *ci)
251{
252 return ci->i_dir_pin != -ENODATA;
253}
254
255static ssize_t ceph_vxattrcb_dir_pin(struct ceph_inode_info *ci, char *val,
256 size_t size)
257{
258 return ceph_fmt_xattr(val, size, "%d", (int)ci->i_dir_pin);
259}
260
261
262static bool ceph_vxattrcb_quota_exists(struct ceph_inode_info *ci)
263{
264 bool ret = false;
265 spin_lock(&ci->i_ceph_lock);
266 if ((ci->i_max_files || ci->i_max_bytes) &&
267 ci->i_vino.snap == CEPH_NOSNAP &&
268 ci->i_snap_realm &&
269 ci->i_snap_realm->ino == ci->i_vino.ino)
270 ret = true;
271 spin_unlock(&ci->i_ceph_lock);
272 return ret;
273}
274
275static ssize_t ceph_vxattrcb_quota(struct ceph_inode_info *ci, char *val,
276 size_t size)
277{
278 return ceph_fmt_xattr(val, size, "max_bytes=%llu max_files=%llu",
279 ci->i_max_bytes, ci->i_max_files);
280}
281
282static ssize_t ceph_vxattrcb_quota_max_bytes(struct ceph_inode_info *ci,
283 char *val, size_t size)
284{
285 return ceph_fmt_xattr(val, size, "%llu", ci->i_max_bytes);
286}
287
288static ssize_t ceph_vxattrcb_quota_max_files(struct ceph_inode_info *ci,
289 char *val, size_t size)
290{
291 return ceph_fmt_xattr(val, size, "%llu", ci->i_max_files);
292}
293
294
295static bool ceph_vxattrcb_snap_btime_exists(struct ceph_inode_info *ci)
296{
297 return (ci->i_snap_btime.tv_sec != 0 || ci->i_snap_btime.tv_nsec != 0);
298}
299
300static ssize_t ceph_vxattrcb_snap_btime(struct ceph_inode_info *ci, char *val,
301 size_t size)
302{
303 return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_snap_btime.tv_sec,
304 ci->i_snap_btime.tv_nsec);
305}
306
307static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
308 char *val, size_t size)
309{
310 struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
311
312 return ceph_fmt_xattr(val, size, "%pU", &fsc->client->fsid);
313}
314
315static ssize_t ceph_vxattrcb_client_id(struct ceph_inode_info *ci,
316 char *val, size_t size)
317{
318 struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
319
320 return ceph_fmt_xattr(val, size, "client%lld",
321 ceph_client_gid(fsc->client));
322}
323
324static ssize_t ceph_vxattrcb_caps(struct ceph_inode_info *ci, char *val,
325 size_t size)
326{
327 int issued;
328
329 spin_lock(&ci->i_ceph_lock);
330 issued = __ceph_caps_issued(ci, NULL);
331 spin_unlock(&ci->i_ceph_lock);
332
333 return ceph_fmt_xattr(val, size, "%s/0x%x",
334 ceph_cap_string(issued), issued);
335}
336
337#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name
338#define CEPH_XATTR_NAME2(_type, _name, _name2) \
339 XATTR_CEPH_PREFIX #_type "." #_name "." #_name2
340
341#define XATTR_NAME_CEPH(_type, _name, _flags) \
342 { \
343 .name = CEPH_XATTR_NAME(_type, _name), \
344 .name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
345 .getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
346 .exists_cb = NULL, \
347 .flags = (VXATTR_FLAG_READONLY | _flags), \
348 }
349#define XATTR_RSTAT_FIELD(_type, _name) \
350 XATTR_NAME_CEPH(_type, _name, VXATTR_FLAG_RSTAT)
351#define XATTR_LAYOUT_FIELD(_type, _name, _field) \
352 { \
353 .name = CEPH_XATTR_NAME2(_type, _name, _field), \
354 .name_size = sizeof (CEPH_XATTR_NAME2(_type, _name, _field)), \
355 .getxattr_cb = ceph_vxattrcb_ ## _name ## _ ## _field, \
356 .exists_cb = ceph_vxattrcb_layout_exists, \
357 .flags = VXATTR_FLAG_HIDDEN, \
358 }
359#define XATTR_QUOTA_FIELD(_type, _name) \
360 { \
361 .name = CEPH_XATTR_NAME(_type, _name), \
362 .name_size = sizeof(CEPH_XATTR_NAME(_type, _name)), \
363 .getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
364 .exists_cb = ceph_vxattrcb_quota_exists, \
365 .flags = VXATTR_FLAG_HIDDEN, \
366 }
367
368static struct ceph_vxattr ceph_dir_vxattrs[] = {
369 {
370 .name = "ceph.dir.layout",
371 .name_size = sizeof("ceph.dir.layout"),
372 .getxattr_cb = ceph_vxattrcb_layout,
373 .exists_cb = ceph_vxattrcb_layout_exists,
374 .flags = VXATTR_FLAG_HIDDEN,
375 },
376 XATTR_LAYOUT_FIELD(dir, layout, stripe_unit),
377 XATTR_LAYOUT_FIELD(dir, layout, stripe_count),
378 XATTR_LAYOUT_FIELD(dir, layout, object_size),
379 XATTR_LAYOUT_FIELD(dir, layout, pool),
380 XATTR_LAYOUT_FIELD(dir, layout, pool_namespace),
381 XATTR_NAME_CEPH(dir, entries, VXATTR_FLAG_DIRSTAT),
382 XATTR_NAME_CEPH(dir, files, VXATTR_FLAG_DIRSTAT),
383 XATTR_NAME_CEPH(dir, subdirs, VXATTR_FLAG_DIRSTAT),
384 XATTR_RSTAT_FIELD(dir, rentries),
385 XATTR_RSTAT_FIELD(dir, rfiles),
386 XATTR_RSTAT_FIELD(dir, rsubdirs),
387 XATTR_RSTAT_FIELD(dir, rbytes),
388 XATTR_RSTAT_FIELD(dir, rctime),
389 {
390 .name = "ceph.dir.pin",
391 .name_size = sizeof("ceph.dir.pin"),
392 .getxattr_cb = ceph_vxattrcb_dir_pin,
393 .exists_cb = ceph_vxattrcb_dir_pin_exists,
394 .flags = VXATTR_FLAG_HIDDEN,
395 },
396 {
397 .name = "ceph.quota",
398 .name_size = sizeof("ceph.quota"),
399 .getxattr_cb = ceph_vxattrcb_quota,
400 .exists_cb = ceph_vxattrcb_quota_exists,
401 .flags = VXATTR_FLAG_HIDDEN,
402 },
403 XATTR_QUOTA_FIELD(quota, max_bytes),
404 XATTR_QUOTA_FIELD(quota, max_files),
405 {
406 .name = "ceph.snap.btime",
407 .name_size = sizeof("ceph.snap.btime"),
408 .getxattr_cb = ceph_vxattrcb_snap_btime,
409 .exists_cb = ceph_vxattrcb_snap_btime_exists,
410 .flags = VXATTR_FLAG_READONLY,
411 },
412 {
413 .name = "ceph.caps",
414 .name_size = sizeof("ceph.caps"),
415 .getxattr_cb = ceph_vxattrcb_caps,
416 .exists_cb = NULL,
417 .flags = VXATTR_FLAG_HIDDEN,
418 },
419 { .name = NULL, 0 }
420};
421
422
423
424static struct ceph_vxattr ceph_file_vxattrs[] = {
425 {
426 .name = "ceph.file.layout",
427 .name_size = sizeof("ceph.file.layout"),
428 .getxattr_cb = ceph_vxattrcb_layout,
429 .exists_cb = ceph_vxattrcb_layout_exists,
430 .flags = VXATTR_FLAG_HIDDEN,
431 },
432 XATTR_LAYOUT_FIELD(file, layout, stripe_unit),
433 XATTR_LAYOUT_FIELD(file, layout, stripe_count),
434 XATTR_LAYOUT_FIELD(file, layout, object_size),
435 XATTR_LAYOUT_FIELD(file, layout, pool),
436 XATTR_LAYOUT_FIELD(file, layout, pool_namespace),
437 {
438 .name = "ceph.snap.btime",
439 .name_size = sizeof("ceph.snap.btime"),
440 .getxattr_cb = ceph_vxattrcb_snap_btime,
441 .exists_cb = ceph_vxattrcb_snap_btime_exists,
442 .flags = VXATTR_FLAG_READONLY,
443 },
444 {
445 .name = "ceph.caps",
446 .name_size = sizeof("ceph.caps"),
447 .getxattr_cb = ceph_vxattrcb_caps,
448 .exists_cb = NULL,
449 .flags = VXATTR_FLAG_HIDDEN,
450 },
451 { .name = NULL, 0 }
452};
453
454static struct ceph_vxattr ceph_common_vxattrs[] = {
455 {
456 .name = "ceph.cluster_fsid",
457 .name_size = sizeof("ceph.cluster_fsid"),
458 .getxattr_cb = ceph_vxattrcb_cluster_fsid,
459 .exists_cb = NULL,
460 .flags = VXATTR_FLAG_READONLY,
461 },
462 {
463 .name = "ceph.client_id",
464 .name_size = sizeof("ceph.client_id"),
465 .getxattr_cb = ceph_vxattrcb_client_id,
466 .exists_cb = NULL,
467 .flags = VXATTR_FLAG_READONLY,
468 },
469 { .name = NULL, 0 }
470};
471
472static struct ceph_vxattr *ceph_inode_vxattrs(struct inode *inode)
473{
474 if (S_ISDIR(inode->i_mode))
475 return ceph_dir_vxattrs;
476 else if (S_ISREG(inode->i_mode))
477 return ceph_file_vxattrs;
478 return NULL;
479}
480
481static struct ceph_vxattr *ceph_match_vxattr(struct inode *inode,
482 const char *name)
483{
484 struct ceph_vxattr *vxattr = ceph_inode_vxattrs(inode);
485
486 if (vxattr) {
487 while (vxattr->name) {
488 if (!strcmp(vxattr->name, name))
489 return vxattr;
490 vxattr++;
491 }
492 }
493
494 vxattr = ceph_common_vxattrs;
495 while (vxattr->name) {
496 if (!strcmp(vxattr->name, name))
497 return vxattr;
498 vxattr++;
499 }
500
501 return NULL;
502}
503
504static int __set_xattr(struct ceph_inode_info *ci,
505 const char *name, int name_len,
506 const char *val, int val_len,
507 int flags, int update_xattr,
508 struct ceph_inode_xattr **newxattr)
509{
510 struct rb_node **p;
511 struct rb_node *parent = NULL;
512 struct ceph_inode_xattr *xattr = NULL;
513 int c;
514 int new = 0;
515
516 p = &ci->i_xattrs.index.rb_node;
517 while (*p) {
518 parent = *p;
519 xattr = rb_entry(parent, struct ceph_inode_xattr, node);
520 c = strncmp(name, xattr->name, min(name_len, xattr->name_len));
521 if (c < 0)
522 p = &(*p)->rb_left;
523 else if (c > 0)
524 p = &(*p)->rb_right;
525 else {
526 if (name_len == xattr->name_len)
527 break;
528 else if (name_len < xattr->name_len)
529 p = &(*p)->rb_left;
530 else
531 p = &(*p)->rb_right;
532 }
533 xattr = NULL;
534 }
535
536 if (update_xattr) {
537 int err = 0;
538
539 if (xattr && (flags & XATTR_CREATE))
540 err = -EEXIST;
541 else if (!xattr && (flags & XATTR_REPLACE))
542 err = -ENODATA;
543 if (err) {
544 kfree(name);
545 kfree(val);
546 kfree(*newxattr);
547 return err;
548 }
549 if (update_xattr < 0) {
550 if (xattr)
551 __remove_xattr(ci, xattr);
552 kfree(name);
553 kfree(*newxattr);
554 return 0;
555 }
556 }
557
558 if (!xattr) {
559 new = 1;
560 xattr = *newxattr;
561 xattr->name = name;
562 xattr->name_len = name_len;
563 xattr->should_free_name = update_xattr;
564
565 ci->i_xattrs.count++;
566 dout("__set_xattr count=%d\n", ci->i_xattrs.count);
567 } else {
568 kfree(*newxattr);
569 *newxattr = NULL;
570 if (xattr->should_free_val)
571 kfree(xattr->val);
572
573 if (update_xattr) {
574 kfree(name);
575 name = xattr->name;
576 }
577 ci->i_xattrs.names_size -= xattr->name_len;
578 ci->i_xattrs.vals_size -= xattr->val_len;
579 }
580 ci->i_xattrs.names_size += name_len;
581 ci->i_xattrs.vals_size += val_len;
582 if (val)
583 xattr->val = val;
584 else
585 xattr->val = "";
586
587 xattr->val_len = val_len;
588 xattr->dirty = update_xattr;
589 xattr->should_free_val = (val && update_xattr);
590
591 if (new) {
592 rb_link_node(&xattr->node, parent, p);
593 rb_insert_color(&xattr->node, &ci->i_xattrs.index);
594 dout("__set_xattr_val p=%p\n", p);
595 }
596
597 dout("__set_xattr_val added %llx.%llx xattr %p %.*s=%.*s\n",
598 ceph_vinop(&ci->vfs_inode), xattr, name_len, name, val_len, val);
599
600 return 0;
601}
602
603static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,
604 const char *name)
605{
606 struct rb_node **p;
607 struct rb_node *parent = NULL;
608 struct ceph_inode_xattr *xattr = NULL;
609 int name_len = strlen(name);
610 int c;
611
612 p = &ci->i_xattrs.index.rb_node;
613 while (*p) {
614 parent = *p;
615 xattr = rb_entry(parent, struct ceph_inode_xattr, node);
616 c = strncmp(name, xattr->name, xattr->name_len);
617 if (c == 0 && name_len > xattr->name_len)
618 c = 1;
619 if (c < 0)
620 p = &(*p)->rb_left;
621 else if (c > 0)
622 p = &(*p)->rb_right;
623 else {
624 dout("__get_xattr %s: found %.*s\n", name,
625 xattr->val_len, xattr->val);
626 return xattr;
627 }
628 }
629
630 dout("__get_xattr %s: not found\n", name);
631
632 return NULL;
633}
634
635static void __free_xattr(struct ceph_inode_xattr *xattr)
636{
637 BUG_ON(!xattr);
638
639 if (xattr->should_free_name)
640 kfree(xattr->name);
641 if (xattr->should_free_val)
642 kfree(xattr->val);
643
644 kfree(xattr);
645}
646
647static int __remove_xattr(struct ceph_inode_info *ci,
648 struct ceph_inode_xattr *xattr)
649{
650 if (!xattr)
651 return -ENODATA;
652
653 rb_erase(&xattr->node, &ci->i_xattrs.index);
654
655 if (xattr->should_free_name)
656 kfree(xattr->name);
657 if (xattr->should_free_val)
658 kfree(xattr->val);
659
660 ci->i_xattrs.names_size -= xattr->name_len;
661 ci->i_xattrs.vals_size -= xattr->val_len;
662 ci->i_xattrs.count--;
663 kfree(xattr);
664
665 return 0;
666}
667
668static char *__copy_xattr_names(struct ceph_inode_info *ci,
669 char *dest)
670{
671 struct rb_node *p;
672 struct ceph_inode_xattr *xattr = NULL;
673
674 p = rb_first(&ci->i_xattrs.index);
675 dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);
676
677 while (p) {
678 xattr = rb_entry(p, struct ceph_inode_xattr, node);
679 memcpy(dest, xattr->name, xattr->name_len);
680 dest[xattr->name_len] = '\0';
681
682 dout("dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
683 xattr->name_len, ci->i_xattrs.names_size);
684
685 dest += xattr->name_len + 1;
686 p = rb_next(p);
687 }
688
689 return dest;
690}
691
692void __ceph_destroy_xattrs(struct ceph_inode_info *ci)
693{
694 struct rb_node *p, *tmp;
695 struct ceph_inode_xattr *xattr = NULL;
696
697 p = rb_first(&ci->i_xattrs.index);
698
699 dout("__ceph_destroy_xattrs p=%p\n", p);
700
701 while (p) {
702 xattr = rb_entry(p, struct ceph_inode_xattr, node);
703 tmp = p;
704 p = rb_next(tmp);
705 dout("__ceph_destroy_xattrs next p=%p (%.*s)\n", p,
706 xattr->name_len, xattr->name);
707 rb_erase(tmp, &ci->i_xattrs.index);
708
709 __free_xattr(xattr);
710 }
711
712 ci->i_xattrs.names_size = 0;
713 ci->i_xattrs.vals_size = 0;
714 ci->i_xattrs.index_version = 0;
715 ci->i_xattrs.count = 0;
716 ci->i_xattrs.index = RB_ROOT;
717}
718
719static int __build_xattrs(struct inode *inode)
720 __releases(ci->i_ceph_lock)
721 __acquires(ci->i_ceph_lock)
722{
723 u32 namelen;
724 u32 numattr = 0;
725 void *p, *end;
726 u32 len;
727 const char *name, *val;
728 struct ceph_inode_info *ci = ceph_inode(inode);
729 u64 xattr_version;
730 struct ceph_inode_xattr **xattrs = NULL;
731 int err = 0;
732 int i;
733
734 dout("__build_xattrs() len=%d\n",
735 ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
736
737 if (ci->i_xattrs.index_version >= ci->i_xattrs.version)
738 return 0;
739
740 __ceph_destroy_xattrs(ci);
741
742start:
743
744 if (ci->i_xattrs.blob && ci->i_xattrs.blob->vec.iov_len > 4) {
745 p = ci->i_xattrs.blob->vec.iov_base;
746 end = p + ci->i_xattrs.blob->vec.iov_len;
747 ceph_decode_32_safe(&p, end, numattr, bad);
748 xattr_version = ci->i_xattrs.version;
749 spin_unlock(&ci->i_ceph_lock);
750
751 xattrs = kcalloc(numattr, sizeof(struct ceph_inode_xattr *),
752 GFP_NOFS);
753 err = -ENOMEM;
754 if (!xattrs)
755 goto bad_lock;
756
757 for (i = 0; i < numattr; i++) {
758 xattrs[i] = kmalloc(sizeof(struct ceph_inode_xattr),
759 GFP_NOFS);
760 if (!xattrs[i])
761 goto bad_lock;
762 }
763
764 spin_lock(&ci->i_ceph_lock);
765 if (ci->i_xattrs.version != xattr_version) {
766
767 for (i = 0; i < numattr; i++)
768 kfree(xattrs[i]);
769 kfree(xattrs);
770 xattrs = NULL;
771 goto start;
772 }
773 err = -EIO;
774 while (numattr--) {
775 ceph_decode_32_safe(&p, end, len, bad);
776 namelen = len;
777 name = p;
778 p += len;
779 ceph_decode_32_safe(&p, end, len, bad);
780 val = p;
781 p += len;
782
783 err = __set_xattr(ci, name, namelen, val, len,
784 0, 0, &xattrs[numattr]);
785
786 if (err < 0)
787 goto bad;
788 }
789 kfree(xattrs);
790 }
791 ci->i_xattrs.index_version = ci->i_xattrs.version;
792 ci->i_xattrs.dirty = false;
793
794 return err;
795bad_lock:
796 spin_lock(&ci->i_ceph_lock);
797bad:
798 if (xattrs) {
799 for (i = 0; i < numattr; i++)
800 kfree(xattrs[i]);
801 kfree(xattrs);
802 }
803 ci->i_xattrs.names_size = 0;
804 return err;
805}
806
807static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
808 int val_size)
809{
810
811
812
813
814 int size = 4 + ci->i_xattrs.count*(4 + 4) +
815 ci->i_xattrs.names_size +
816 ci->i_xattrs.vals_size;
817 dout("__get_required_blob_size c=%d names.size=%d vals.size=%d\n",
818 ci->i_xattrs.count, ci->i_xattrs.names_size,
819 ci->i_xattrs.vals_size);
820
821 if (name_size)
822 size += 4 + 4 + name_size + val_size;
823
824 return size;
825}
826
827
828
829
830
831
832
833struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)
834{
835 struct rb_node *p;
836 struct ceph_inode_xattr *xattr = NULL;
837 struct ceph_buffer *old_blob = NULL;
838 void *dest;
839
840 dout("__build_xattrs_blob %p\n", &ci->vfs_inode);
841 if (ci->i_xattrs.dirty) {
842 int need = __get_required_blob_size(ci, 0, 0);
843
844 BUG_ON(need > ci->i_xattrs.prealloc_blob->alloc_len);
845
846 p = rb_first(&ci->i_xattrs.index);
847 dest = ci->i_xattrs.prealloc_blob->vec.iov_base;
848
849 ceph_encode_32(&dest, ci->i_xattrs.count);
850 while (p) {
851 xattr = rb_entry(p, struct ceph_inode_xattr, node);
852
853 ceph_encode_32(&dest, xattr->name_len);
854 memcpy(dest, xattr->name, xattr->name_len);
855 dest += xattr->name_len;
856 ceph_encode_32(&dest, xattr->val_len);
857 memcpy(dest, xattr->val, xattr->val_len);
858 dest += xattr->val_len;
859
860 p = rb_next(p);
861 }
862
863
864 ci->i_xattrs.prealloc_blob->vec.iov_len =
865 dest - ci->i_xattrs.prealloc_blob->vec.iov_base;
866
867 if (ci->i_xattrs.blob)
868 old_blob = ci->i_xattrs.blob;
869 ci->i_xattrs.blob = ci->i_xattrs.prealloc_blob;
870 ci->i_xattrs.prealloc_blob = NULL;
871 ci->i_xattrs.dirty = false;
872 ci->i_xattrs.version++;
873 }
874
875 return old_blob;
876}
877
878static inline int __get_request_mask(struct inode *in) {
879 struct ceph_mds_request *req = current->journal_info;
880 int mask = 0;
881 if (req && req->r_target_inode == in) {
882 if (req->r_op == CEPH_MDS_OP_LOOKUP ||
883 req->r_op == CEPH_MDS_OP_LOOKUPINO ||
884 req->r_op == CEPH_MDS_OP_LOOKUPPARENT ||
885 req->r_op == CEPH_MDS_OP_GETATTR) {
886 mask = le32_to_cpu(req->r_args.getattr.mask);
887 } else if (req->r_op == CEPH_MDS_OP_OPEN ||
888 req->r_op == CEPH_MDS_OP_CREATE) {
889 mask = le32_to_cpu(req->r_args.open.mask);
890 }
891 }
892 return mask;
893}
894
895ssize_t __ceph_getxattr(struct inode *inode, const char *name, void *value,
896 size_t size)
897{
898 struct ceph_inode_info *ci = ceph_inode(inode);
899 struct ceph_inode_xattr *xattr;
900 struct ceph_vxattr *vxattr = NULL;
901 int req_mask;
902 ssize_t err;
903
904
905 vxattr = ceph_match_vxattr(inode, name);
906 if (vxattr) {
907 int mask = 0;
908 if (vxattr->flags & VXATTR_FLAG_RSTAT)
909 mask |= CEPH_STAT_RSTAT;
910 if (vxattr->flags & VXATTR_FLAG_DIRSTAT)
911 mask |= CEPH_CAP_FILE_SHARED;
912 err = ceph_do_getattr(inode, mask, true);
913 if (err)
914 return err;
915 err = -ENODATA;
916 if (!(vxattr->exists_cb && !vxattr->exists_cb(ci))) {
917 err = vxattr->getxattr_cb(ci, value, size);
918 if (size && size < err)
919 err = -ERANGE;
920 }
921 return err;
922 }
923
924 req_mask = __get_request_mask(inode);
925
926 spin_lock(&ci->i_ceph_lock);
927 dout("getxattr %p name '%s' ver=%lld index_ver=%lld\n", inode, name,
928 ci->i_xattrs.version, ci->i_xattrs.index_version);
929
930 if (ci->i_xattrs.version == 0 ||
931 !((req_mask & CEPH_CAP_XATTR_SHARED) ||
932 __ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1))) {
933 spin_unlock(&ci->i_ceph_lock);
934
935
936 if (current->journal_info) {
937 pr_warn_ratelimited("sync getxattr %p "
938 "during filling trace\n", inode);
939 return -EBUSY;
940 }
941
942
943 err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR, true);
944 if (err)
945 return err;
946 spin_lock(&ci->i_ceph_lock);
947 }
948
949 err = __build_xattrs(inode);
950 if (err < 0)
951 goto out;
952
953 err = -ENODATA;
954 xattr = __get_xattr(ci, name);
955 if (!xattr)
956 goto out;
957
958 err = -ERANGE;
959 if (size && size < xattr->val_len)
960 goto out;
961
962 err = xattr->val_len;
963 if (size == 0)
964 goto out;
965
966 memcpy(value, xattr->val, xattr->val_len);
967
968 if (current->journal_info &&
969 !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) &&
970 security_ismaclabel(name + XATTR_SECURITY_PREFIX_LEN))
971 ci->i_ceph_flags |= CEPH_I_SEC_INITED;
972out:
973 spin_unlock(&ci->i_ceph_lock);
974 return err;
975}
976
977ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
978{
979 struct inode *inode = d_inode(dentry);
980 struct ceph_inode_info *ci = ceph_inode(inode);
981 bool len_only = (size == 0);
982 u32 namelen;
983 int err;
984
985 spin_lock(&ci->i_ceph_lock);
986 dout("listxattr %p ver=%lld index_ver=%lld\n", inode,
987 ci->i_xattrs.version, ci->i_xattrs.index_version);
988
989 if (ci->i_xattrs.version == 0 ||
990 !__ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1)) {
991 spin_unlock(&ci->i_ceph_lock);
992 err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR, true);
993 if (err)
994 return err;
995 spin_lock(&ci->i_ceph_lock);
996 }
997
998 err = __build_xattrs(inode);
999 if (err < 0)
1000 goto out;
1001
1002
1003 namelen = ci->i_xattrs.names_size + ci->i_xattrs.count;
1004 if (!len_only) {
1005 if (namelen > size) {
1006 err = -ERANGE;
1007 goto out;
1008 }
1009 names = __copy_xattr_names(ci, names);
1010 size -= namelen;
1011 }
1012 err = namelen;
1013out:
1014 spin_unlock(&ci->i_ceph_lock);
1015 return err;
1016}
1017
1018static int ceph_sync_setxattr(struct inode *inode, const char *name,
1019 const char *value, size_t size, int flags)
1020{
1021 struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
1022 struct ceph_inode_info *ci = ceph_inode(inode);
1023 struct ceph_mds_request *req;
1024 struct ceph_mds_client *mdsc = fsc->mdsc;
1025 struct ceph_osd_client *osdc = &fsc->client->osdc;
1026 struct ceph_pagelist *pagelist = NULL;
1027 int op = CEPH_MDS_OP_SETXATTR;
1028 int err;
1029
1030 if (size > 0) {
1031
1032 pagelist = ceph_pagelist_alloc(GFP_NOFS);
1033 if (!pagelist)
1034 return -ENOMEM;
1035
1036 err = ceph_pagelist_append(pagelist, value, size);
1037 if (err)
1038 goto out;
1039 } else if (!value) {
1040 if (flags & CEPH_XATTR_REPLACE)
1041 op = CEPH_MDS_OP_RMXATTR;
1042 else
1043 flags |= CEPH_XATTR_REMOVE;
1044 }
1045
1046 dout("setxattr value=%.*s\n", (int)size, value);
1047
1048
1049 req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS);
1050 if (IS_ERR(req)) {
1051 err = PTR_ERR(req);
1052 goto out;
1053 }
1054
1055 req->r_path2 = kstrdup(name, GFP_NOFS);
1056 if (!req->r_path2) {
1057 ceph_mdsc_put_request(req);
1058 err = -ENOMEM;
1059 goto out;
1060 }
1061
1062 if (op == CEPH_MDS_OP_SETXATTR) {
1063 req->r_args.setxattr.flags = cpu_to_le32(flags);
1064 req->r_args.setxattr.osdmap_epoch =
1065 cpu_to_le32(osdc->osdmap->epoch);
1066 req->r_pagelist = pagelist;
1067 pagelist = NULL;
1068 }
1069
1070 req->r_inode = inode;
1071 ihold(inode);
1072 req->r_num_caps = 1;
1073 req->r_inode_drop = CEPH_CAP_XATTR_SHARED;
1074
1075 dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);
1076 err = ceph_mdsc_do_request(mdsc, NULL, req);
1077 ceph_mdsc_put_request(req);
1078 dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);
1079
1080out:
1081 if (pagelist)
1082 ceph_pagelist_release(pagelist);
1083 return err;
1084}
1085
1086int __ceph_setxattr(struct inode *inode, const char *name,
1087 const void *value, size_t size, int flags)
1088{
1089 struct ceph_vxattr *vxattr;
1090 struct ceph_inode_info *ci = ceph_inode(inode);
1091 struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
1092 struct ceph_cap_flush *prealloc_cf = NULL;
1093 struct ceph_buffer *old_blob = NULL;
1094 int issued;
1095 int err;
1096 int dirty = 0;
1097 int name_len = strlen(name);
1098 int val_len = size;
1099 char *newname = NULL;
1100 char *newval = NULL;
1101 struct ceph_inode_xattr *xattr = NULL;
1102 int required_blob_size;
1103 bool check_realm = false;
1104 bool lock_snap_rwsem = false;
1105
1106 if (ceph_snap(inode) != CEPH_NOSNAP)
1107 return -EROFS;
1108
1109 vxattr = ceph_match_vxattr(inode, name);
1110 if (vxattr) {
1111 if (vxattr->flags & VXATTR_FLAG_READONLY)
1112 return -EOPNOTSUPP;
1113 if (value && !strncmp(vxattr->name, "ceph.quota", 10))
1114 check_realm = true;
1115 }
1116
1117
1118 if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN))
1119 goto do_sync_unlocked;
1120
1121
1122 err = -ENOMEM;
1123 newname = kmemdup(name, name_len + 1, GFP_NOFS);
1124 if (!newname)
1125 goto out;
1126
1127 if (val_len) {
1128 newval = kmemdup(value, val_len, GFP_NOFS);
1129 if (!newval)
1130 goto out;
1131 }
1132
1133 xattr = kmalloc(sizeof(struct ceph_inode_xattr), GFP_NOFS);
1134 if (!xattr)
1135 goto out;
1136
1137 prealloc_cf = ceph_alloc_cap_flush();
1138 if (!prealloc_cf)
1139 goto out;
1140
1141 spin_lock(&ci->i_ceph_lock);
1142retry:
1143 issued = __ceph_caps_issued(ci, NULL);
1144 if (ci->i_xattrs.version == 0 || !(issued & CEPH_CAP_XATTR_EXCL))
1145 goto do_sync;
1146
1147 if (!lock_snap_rwsem && !ci->i_head_snapc) {
1148 lock_snap_rwsem = true;
1149 if (!down_read_trylock(&mdsc->snap_rwsem)) {
1150 spin_unlock(&ci->i_ceph_lock);
1151 down_read(&mdsc->snap_rwsem);
1152 spin_lock(&ci->i_ceph_lock);
1153 goto retry;
1154 }
1155 }
1156
1157 dout("setxattr %p name '%s' issued %s\n", inode, name,
1158 ceph_cap_string(issued));
1159 __build_xattrs(inode);
1160
1161 required_blob_size = __get_required_blob_size(ci, name_len, val_len);
1162
1163 if (!ci->i_xattrs.prealloc_blob ||
1164 required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {
1165 struct ceph_buffer *blob;
1166
1167 spin_unlock(&ci->i_ceph_lock);
1168 ceph_buffer_put(old_blob);
1169 dout(" pre-allocating new blob size=%d\n", required_blob_size);
1170 blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
1171 if (!blob)
1172 goto do_sync_unlocked;
1173 spin_lock(&ci->i_ceph_lock);
1174
1175 if (ci->i_xattrs.prealloc_blob)
1176 old_blob = ci->i_xattrs.prealloc_blob;
1177 ci->i_xattrs.prealloc_blob = blob;
1178 goto retry;
1179 }
1180
1181 err = __set_xattr(ci, newname, name_len, newval, val_len,
1182 flags, value ? 1 : -1, &xattr);
1183
1184 if (!err) {
1185 dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
1186 &prealloc_cf);
1187 ci->i_xattrs.dirty = true;
1188 inode->i_ctime = current_time(inode);
1189 }
1190
1191 spin_unlock(&ci->i_ceph_lock);
1192 ceph_buffer_put(old_blob);
1193 if (lock_snap_rwsem)
1194 up_read(&mdsc->snap_rwsem);
1195 if (dirty)
1196 __mark_inode_dirty(inode, dirty);
1197 ceph_free_cap_flush(prealloc_cf);
1198 return err;
1199
1200do_sync:
1201 spin_unlock(&ci->i_ceph_lock);
1202do_sync_unlocked:
1203 if (lock_snap_rwsem)
1204 up_read(&mdsc->snap_rwsem);
1205
1206
1207 if (current->journal_info) {
1208 pr_warn_ratelimited("sync setxattr %p "
1209 "during filling trace\n", inode);
1210 err = -EBUSY;
1211 } else {
1212 err = ceph_sync_setxattr(inode, name, value, size, flags);
1213 if (err >= 0 && check_realm) {
1214
1215 spin_lock(&ci->i_ceph_lock);
1216 if ((ci->i_max_files || ci->i_max_bytes) &&
1217 !(ci->i_snap_realm &&
1218 ci->i_snap_realm->ino == ci->i_vino.ino))
1219 err = -EOPNOTSUPP;
1220 spin_unlock(&ci->i_ceph_lock);
1221 }
1222 }
1223out:
1224 ceph_free_cap_flush(prealloc_cf);
1225 kfree(newname);
1226 kfree(newval);
1227 kfree(xattr);
1228 return err;
1229}
1230
1231static int ceph_get_xattr_handler(const struct xattr_handler *handler,
1232 struct dentry *dentry, struct inode *inode,
1233 const char *name, void *value, size_t size)
1234{
1235 if (!ceph_is_valid_xattr(name))
1236 return -EOPNOTSUPP;
1237 return __ceph_getxattr(inode, name, value, size);
1238}
1239
1240static int ceph_set_xattr_handler(const struct xattr_handler *handler,
1241 struct dentry *unused, struct inode *inode,
1242 const char *name, const void *value,
1243 size_t size, int flags)
1244{
1245 if (!ceph_is_valid_xattr(name))
1246 return -EOPNOTSUPP;
1247 return __ceph_setxattr(inode, name, value, size, flags);
1248}
1249
1250static const struct xattr_handler ceph_other_xattr_handler = {
1251 .prefix = "",
1252 .get = ceph_get_xattr_handler,
1253 .set = ceph_set_xattr_handler,
1254};
1255
1256#ifdef CONFIG_SECURITY
1257bool ceph_security_xattr_wanted(struct inode *in)
1258{
1259 return in->i_security != NULL;
1260}
1261
1262bool ceph_security_xattr_deadlock(struct inode *in)
1263{
1264 struct ceph_inode_info *ci;
1265 bool ret;
1266 if (!in->i_security)
1267 return false;
1268 ci = ceph_inode(in);
1269 spin_lock(&ci->i_ceph_lock);
1270 ret = !(ci->i_ceph_flags & CEPH_I_SEC_INITED) &&
1271 !(ci->i_xattrs.version > 0 &&
1272 __ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 0));
1273 spin_unlock(&ci->i_ceph_lock);
1274 return ret;
1275}
1276
1277#ifdef CONFIG_CEPH_FS_SECURITY_LABEL
1278int ceph_security_init_secctx(struct dentry *dentry, umode_t mode,
1279 struct ceph_acl_sec_ctx *as_ctx)
1280{
1281 struct ceph_pagelist *pagelist = as_ctx->pagelist;
1282 const char *name;
1283 size_t name_len;
1284 int err;
1285
1286 err = security_dentry_init_security(dentry, mode, &dentry->d_name,
1287 &as_ctx->sec_ctx,
1288 &as_ctx->sec_ctxlen);
1289 if (err < 0) {
1290 WARN_ON_ONCE(err != -EOPNOTSUPP);
1291 err = 0;
1292 goto out;
1293 }
1294
1295 err = -ENOMEM;
1296 if (!pagelist) {
1297 pagelist = ceph_pagelist_alloc(GFP_KERNEL);
1298 if (!pagelist)
1299 goto out;
1300 err = ceph_pagelist_reserve(pagelist, PAGE_SIZE);
1301 if (err)
1302 goto out;
1303 ceph_pagelist_encode_32(pagelist, 1);
1304 }
1305
1306
1307
1308
1309
1310
1311 name = XATTR_NAME_SELINUX;
1312 name_len = strlen(name);
1313 err = ceph_pagelist_reserve(pagelist,
1314 4 * 2 + name_len + as_ctx->sec_ctxlen);
1315 if (err)
1316 goto out;
1317
1318 if (as_ctx->pagelist) {
1319
1320 BUG_ON(pagelist->length <= sizeof(__le32));
1321 if (list_is_singular(&pagelist->head)) {
1322 le32_add_cpu((__le32*)pagelist->mapped_tail, 1);
1323 } else {
1324 struct page *page = list_first_entry(&pagelist->head,
1325 struct page, lru);
1326 void *addr = kmap_atomic(page);
1327 le32_add_cpu((__le32*)addr, 1);
1328 kunmap_atomic(addr);
1329 }
1330 } else {
1331 as_ctx->pagelist = pagelist;
1332 }
1333
1334 ceph_pagelist_encode_32(pagelist, name_len);
1335 ceph_pagelist_append(pagelist, name, name_len);
1336
1337 ceph_pagelist_encode_32(pagelist, as_ctx->sec_ctxlen);
1338 ceph_pagelist_append(pagelist, as_ctx->sec_ctx, as_ctx->sec_ctxlen);
1339
1340 err = 0;
1341out:
1342 if (pagelist && !as_ctx->pagelist)
1343 ceph_pagelist_release(pagelist);
1344 return err;
1345}
1346#endif
1347#endif
1348
1349void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx)
1350{
1351#ifdef CONFIG_CEPH_FS_POSIX_ACL
1352 posix_acl_release(as_ctx->acl);
1353 posix_acl_release(as_ctx->default_acl);
1354#endif
1355#ifdef CONFIG_CEPH_FS_SECURITY_LABEL
1356 security_release_secctx(as_ctx->sec_ctx, as_ctx->sec_ctxlen);
1357#endif
1358 if (as_ctx->pagelist)
1359 ceph_pagelist_release(as_ctx->pagelist);
1360}
1361
1362
1363
1364
1365
1366const struct xattr_handler *ceph_xattr_handlers[] = {
1367#ifdef CONFIG_CEPH_FS_POSIX_ACL
1368 &posix_acl_access_xattr_handler,
1369 &posix_acl_default_xattr_handler,
1370#endif
1371 &ceph_other_xattr_handler,
1372 NULL,
1373};
1374
