4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/mdt/mdt_xattr.c
34 * Lustre Metadata Target (mdt) extended attributes management.
36 * Author: Peter Braam <braam@clusterfs.com>
37 * Author: Andreas Dilger <adilger@clusterfs.com>
38 * Author: Phil Schwan <phil@clusterfs.com>
39 * Author: Huang Hua <huanghua@clusterfs.com>
42 #define DEBUG_SUBSYSTEM S_MDS
44 #include <linux/xattr.h>
45 #include <obd_class.h>
46 #include <lustre_nodemap.h>
47 #include <lustre_acl.h>
48 #include <lustre_lmv.h>
49 #include "mdt_internal.h"
52 /* return EADATA length to the caller. negative value means error */
53 static int mdt_getxattr_pack_reply(struct mdt_thread_info *info)
55 struct req_capsule *pill = info->mti_pill;
56 struct ptlrpc_request *req = mdt_info_req(info);
57 const char *xattr_name;
59 static const char user_string[] = "user.";
65 valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
67 /* Determine how many bytes we need */
68 if (valid == OBD_MD_FLXATTR) {
69 xattr_name = req_capsule_client_get(pill, &RMF_NAME);
73 if (!(exp_connect_flags(req->rq_export) & OBD_CONNECT_XATTR) &&
74 !strncmp(xattr_name, user_string, sizeof(user_string) - 1))
77 size = mo_xattr_get(info->mti_env,
78 mdt_object_child(info->mti_object),
79 &LU_BUF_NULL, xattr_name);
80 if (size == -ENODATA) {
81 /* XXX: Some client code will not handle -ENODATA
82 * for XATTR_NAME_LOV (trusted.lov) properly.
84 if (strcmp(xattr_name, XATTR_NAME_LOV) == 0)
91 } else if (valid == OBD_MD_FLXATTRLS) {
93 size = mo_xattr_list(info->mti_env,
94 mdt_object_child(info->mti_object),
96 } else if (valid == OBD_MD_FLXATTRALL) {
98 /* N.B. eadatasize = 0 is not valid for FLXATTRALL */
99 /* We could calculate accurate sizes, but this would
100 * introduce a lot of overhead, let's do it later...
102 size = info->mti_body->mbo_eadatasize;
103 if (size <= 0 || size > info->mti_mdt->mdt_max_ea_size ||
104 size & (sizeof(__u32) - 1)) {
105 DEBUG_REQ(D_ERROR, req,
106 "%s: invalid EA size(%d) for FLXATTRALL\n",
107 mdt_obd_name(info->mti_mdt), size);
110 req_capsule_set_size(pill, &RMF_EAVALS, RCL_SERVER, size);
111 req_capsule_set_size(pill, &RMF_EAVALS_LENS, RCL_SERVER, size);
113 CDEBUG(D_INFO, "Valid bits: %#llx\n",
114 info->mti_body->mbo_valid);
119 if (size != -EOPNOTSUPP && size != -ENOENT)
120 CERROR("%s: error geting EA size for '%s': rc = %d\n",
121 mdt_obd_name(info->mti_mdt), xattr_name, size);
125 if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
126 req_capsule_set_size(pill, &RMF_ACL, RCL_SERVER,
127 LUSTRE_POSIX_ACL_MAX_SIZE_OLD);
129 req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
130 info->mti_body->mbo_eadatasize == 0 ? 0 : size);
132 rc2 = req_capsule_server_pack(pill);
136 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
139 RETURN(rc < 0 ? rc : size);
142 static int mdt_nodemap_map_acl(struct mdt_thread_info *info, void *buf,
143 size_t size, const char *name,
144 enum nodemap_tree_type tree_type)
146 struct lu_nodemap *nodemap;
147 struct obd_export *exp = info->mti_exp;
152 if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0 ||
153 strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0) {
154 if (size > info->mti_mdt->mdt_max_ea_size ||
155 (!exp_connect_large_acl(exp) &&
156 size > LUSTRE_POSIX_ACL_MAX_SIZE_OLD))
157 GOTO(out, rc = -ERANGE);
159 nodemap = nodemap_get_from_exp(exp);
161 GOTO(out, rc = PTR_ERR(nodemap));
163 rc = nodemap_map_acl(nodemap, buf, size, tree_type);
164 nodemap_putref(nodemap);
172 static int mdt_getxattr_all(struct mdt_thread_info *info,
173 struct mdt_body *reqbody, struct mdt_body *repbody,
174 struct lu_buf *buf, struct md_object *next)
176 const struct lu_env *env = info->mti_env;
177 char *v, *b, *eadatahead, *eadatatail;
179 int eadatasize, eavallen = 0, eavallens = 0, rc;
184 * The format of the pill is the following:
185 * EADATA: attr1\0attr2\0...attrn\0
186 * EAVALS: val1val2...valn
187 * EAVALS_LENS: 4,4,...4
190 eadatahead = buf->lb_buf;
192 /* Fill out EADATA first */
193 rc = mo_xattr_list(env, next, buf);
195 GOTO(out_shrink, rc);
198 eadatatail = eadatahead + eadatasize;
200 v = req_capsule_server_get(info->mti_pill, &RMF_EAVALS);
201 sizes = req_capsule_server_get(info->mti_pill, &RMF_EAVALS_LENS);
203 /* Fill out EAVALS and EAVALS_LENS */
204 for (b = eadatahead; b < eadatatail; b += strlen(b) + 1, v += rc) {
206 buf->lb_len = reqbody->mbo_eadatasize - eavallen;
207 rc = mo_xattr_get(env, next, buf, b);
209 GOTO(out_shrink, rc);
210 rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, b,
211 NODEMAP_FS_TO_CLIENT);
213 GOTO(out_shrink, rc);
214 sizes[eavallens] = rc;
225 repbody->mbo_aclsize = eavallen;
226 repbody->mbo_max_mdsize = eavallens;
228 req_capsule_shrink(info->mti_pill, &RMF_EAVALS, eavallen, RCL_SERVER);
229 req_capsule_shrink(info->mti_pill, &RMF_EAVALS_LENS,
230 eavallens * sizeof(__u32), RCL_SERVER);
231 req_capsule_shrink(info->mti_pill, &RMF_EADATA, eadatasize, RCL_SERVER);
238 int mdt_getxattr(struct mdt_thread_info *info)
240 struct ptlrpc_request *req = mdt_info_req(info);
241 struct mdt_body *reqbody;
242 struct mdt_body *repbody = NULL;
243 struct md_object *next;
249 LASSERT(info->mti_object != NULL);
250 LASSERT(lu_object_assert_exists(&info->mti_object->mot_obj));
252 CDEBUG(D_INODE, "getxattr "DFID"\n", PFID(&info->mti_body->mbo_fid1));
254 rc = req_check_sepol(info->mti_pill);
256 RETURN(err_serious(rc));
258 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
260 RETURN(err_serious(-EFAULT));
262 rc = mdt_init_ucred(info, reqbody);
264 RETURN(err_serious(rc));
266 next = mdt_object_child(info->mti_object);
267 easize = mdt_getxattr_pack_reply(info);
268 if (easize == -ENODATA)
269 GOTO(out, rc = easize);
271 GOTO(out, rc = err_serious(easize));
273 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
274 LASSERT(repbody != NULL);
276 /* No need further getxattr. */
277 if (easize == 0 || reqbody->mbo_eadatasize == 0)
278 GOTO(out, rc = easize);
280 buf = &info->mti_buf;
281 buf->lb_buf = req_capsule_server_get(info->mti_pill, &RMF_EADATA);
282 buf->lb_len = easize;
284 valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
286 if (valid == OBD_MD_FLXATTR) {
287 const char *xattr_name = req_capsule_client_get(info->mti_pill,
289 rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
293 rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, xattr_name,
294 NODEMAP_FS_TO_CLIENT);
295 } else if (valid == OBD_MD_FLXATTRLS) {
296 CDEBUG(D_INODE, "listxattr\n");
298 rc = mo_xattr_list(info->mti_env, next, buf);
300 CDEBUG(D_INFO, "listxattr failed: %d\n", rc);
301 } else if (valid == OBD_MD_FLXATTRALL) {
302 rc = mdt_getxattr_all(info, reqbody, repbody,
310 mdt_counter_incr(req, LPROC_MDT_GETXATTR);
311 /* LU-11109: Set OBD_MD_FLXATTR on success so that
312 * newer clients can distinguish between nonexistent
313 * xattrs and zero length values.
315 repbody->mbo_valid |= OBD_MD_FLXATTR;
316 repbody->mbo_eadatasize = rc;
319 mdt_exit_ucred(info);
323 /* update dir layout after migration/restripe */
324 int mdt_dir_layout_update(struct mdt_thread_info *info)
326 const struct lu_env *env = info->mti_env;
327 struct mdt_device *mdt = info->mti_mdt;
328 struct lu_ucred *uc = mdt_ucred(info);
329 struct mdt_reint_record *rr = &info->mti_rr;
330 struct lmv_user_md *lmu = rr->rr_eadata;
331 __u32 lum_stripe_count = lmu->lum_stripe_count;
332 struct md_layout_change *mlc = &info->mti_mlc;
333 struct lmv_mds_md_v1 *lmv;
334 struct md_attr *ma = &info->mti_attr;
335 struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
336 struct mdt_object *pobj = NULL;
337 struct mdt_object *obj;
338 struct mdt_lock_handle *lhp = NULL;
339 struct mdt_lock_handle *lhc;
345 if (!mdt->mdt_enable_dir_migration)
348 if (!md_capable(uc, CFS_CAP_SYS_ADMIN) &&
349 uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
350 mdt->mdt_enable_remote_dir_gid != -1)
353 obj = mdt_object_find(env, mdt, rr->rr_fid1);
355 RETURN(PTR_ERR(obj));
357 /* get parent from PFID */
358 rc = mdt_attr_get_pfid(info, obj, &ma->ma_pfid);
362 pobj = mdt_object_find(env, mdt, &ma->ma_pfid);
364 GOTO(put_obj, rc = PTR_ERR(pobj));
366 /* revoke object remote LOOKUP lock */
367 if (mdt_object_remote(pobj)) {
368 rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
374 * lock parent if dir will be shrunk to 1 stripe, because dir will be
375 * converted to normal directory, as will change dir FID and update
376 * namespace of parent.
378 lhp = &info->mti_lh[MDT_LH_PARENT];
379 mdt_lock_reg_init(lhp, LCK_PW);
381 if (le32_to_cpu(lmu->lum_stripe_count) < 2) {
382 rc = mdt_reint_object_lock(info, pobj, lhp,
383 MDS_INODELOCK_UPDATE, true);
389 lhc = &info->mti_lh[MDT_LH_CHILD];
390 mdt_lock_reg_init(lhc, LCK_EX);
391 rc = mdt_reint_striped_lock(info, obj, lhc, MDS_INODELOCK_FULL, einfo,
394 GOTO(unlock_pobj, rc);
396 rc = mdt_stripe_get(info, obj, ma, XATTR_NAME_LMV);
398 GOTO(unlock_obj, rc);
400 /* user may run 'lfs migrate' multiple times, so it's shrunk already */
401 if (!(ma->ma_valid & MA_LMV))
402 GOTO(unlock_obj, rc = -EALREADY);
404 lmv = &ma->ma_lmv->lmv_md_v1;
405 if (!lmv_is_sane(lmv))
406 GOTO(unlock_obj, rc = -EBADF);
409 if (!lmv_is_layout_changing(lmv))
410 GOTO(unlock_obj, rc = -EALREADY);
412 lum_stripe_count = lmu->lum_stripe_count;
413 if (!lum_stripe_count)
414 lum_stripe_count = cpu_to_le32(1);
416 if (lmv_is_migrating(lmv)) {
417 if (lmv->lmv_migrate_offset != lum_stripe_count) {
418 CERROR("%s: "DFID" migrate mdt count mismatch %u != %u\n",
419 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
420 lmv->lmv_migrate_offset, lmu->lum_stripe_count);
421 GOTO(unlock_obj, rc = -EINVAL);
424 if (lmu->lum_stripe_offset != lmv->lmv_master_mdt_index) {
425 CERROR("%s: "DFID" migrate mdt index mismatch %u != %u\n",
426 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
427 lmv->lmv_master_mdt_index,
428 lmu->lum_stripe_offset);
429 GOTO(unlock_obj, rc = -EINVAL);
432 if (lum_stripe_count > 1 && lmu->lum_hash_type &&
433 lmu->lum_hash_type !=
434 (lmv->lmv_hash_type & cpu_to_le32(LMV_HASH_TYPE_MASK))) {
435 CERROR("%s: "DFID" migrate mdt hash mismatch %u != %u\n",
436 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
437 lmv->lmv_hash_type, lmu->lum_hash_type);
438 GOTO(unlock_obj, rc = -EINVAL);
442 } else if (lmv_is_splitting(lmv)) {
443 if (lmv->lmv_stripe_count != lum_stripe_count) {
444 CERROR("%s: "DFID" stripe count mismatch %u != %u\n",
445 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
446 lmv->lmv_stripe_count, lmu->lum_stripe_count);
447 GOTO(unlock_obj, rc = -EINVAL);
450 if (lmu->lum_stripe_offset != LMV_OFFSET_DEFAULT) {
451 CERROR("%s: "DFID" dir split offset %u != -1\n",
452 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
453 lmu->lum_stripe_offset);
454 GOTO(unlock_obj, rc = -EINVAL);
457 if (lmu->lum_hash_type &&
458 lmu->lum_hash_type !=
459 (lmv->lmv_hash_type & cpu_to_le32(LMV_HASH_TYPE_MASK))) {
460 CERROR("%s: "DFID" split hash mismatch %u != %u\n",
461 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
462 lmv->lmv_hash_type, lmu->lum_hash_type);
463 GOTO(unlock_obj, rc = -EINVAL);
465 } else if (lmv_is_merging(lmv)) {
466 if (lmv->lmv_merge_offset != lum_stripe_count) {
467 CERROR("%s: "DFID" stripe count mismatch %u != %u\n",
468 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
469 lmv->lmv_merge_offset, lmu->lum_stripe_count);
470 GOTO(unlock_obj, rc = -EINVAL);
473 if (lmu->lum_stripe_offset != LMV_OFFSET_DEFAULT) {
474 CERROR("%s: "DFID" dir merge offset %u != -1\n",
475 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
476 lmu->lum_stripe_offset);
477 GOTO(unlock_obj, rc = -EINVAL);
480 if (lmu->lum_hash_type &&
481 lmu->lum_hash_type !=
482 (lmv->lmv_merge_hash & cpu_to_le32(LMV_HASH_TYPE_MASK))) {
483 CERROR("%s: "DFID" merge hash mismatch %u != %u\n",
484 mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
485 lmv->lmv_merge_hash, lmu->lum_hash_type);
486 GOTO(unlock_obj, rc = -EINVAL);
489 if (lum_stripe_count < lmv->lmv_stripe_count)
494 mlc->mlc_opc = MD_LAYOUT_SHRINK;
495 mlc->mlc_buf.lb_buf = rr->rr_eadata;
496 mlc->mlc_buf.lb_len = rr->rr_eadatalen;
497 rc = mo_layout_change(env, mdt_object_child(obj), mlc);
499 struct lu_buf *buf = &info->mti_buf;
500 u32 version = le32_to_cpu(lmv->lmv_layout_version);
502 lmv->lmv_hash_type &= ~LMV_HASH_FLAG_LAYOUT_CHANGE;
503 lmv->lmv_layout_version = cpu_to_le32(++version);
505 buf->lb_len = sizeof(*lmv);
506 rc = mo_xattr_set(env, mdt_object_child(obj), buf,
507 XATTR_NAME_LMV, LU_XATTR_REPLACE);
509 GOTO(unlock_obj, rc);
512 mdt_reint_striped_unlock(info, obj, lhc, einfo, rc);
514 mdt_object_unlock(info, pobj, lhp, rc);
516 mdt_object_put(env, pobj);
518 mdt_object_put(env, obj);
523 int mdt_reint_setxattr(struct mdt_thread_info *info,
524 struct mdt_lock_handle *unused)
526 struct ptlrpc_request *req = mdt_info_req(info);
527 struct mdt_lock_handle *lh;
528 const struct lu_env *env = info->mti_env;
529 struct lu_buf *buf = &info->mti_buf;
530 struct mdt_reint_record *rr = &info->mti_rr;
531 struct md_attr *ma = &info->mti_attr;
532 struct lu_attr *attr = &info->mti_attr.ma_attr;
533 struct mdt_object *obj;
534 struct md_object *child;
535 __u64 valid = attr->la_valid;
536 const char *xattr_name = rr->rr_name.ln_name;
537 int xattr_len = rr->rr_eadatalen;
538 __u64 lockpart = MDS_INODELOCK_UPDATE;
542 CDEBUG(D_INODE, "setxattr for "DFID": %s %s\n", PFID(rr->rr_fid1),
543 valid & OBD_MD_FLXATTR ? "set" : "remove", xattr_name);
545 if (info->mti_dlm_req)
546 ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
548 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SETXATTR))
549 RETURN(err_serious(-ENOMEM));
551 rc = mdt_init_ucred_reint(info);
555 if (strncmp(xattr_name, XATTR_USER_PREFIX,
556 sizeof(XATTR_USER_PREFIX) - 1) == 0) {
557 if (!(exp_connect_flags(req->rq_export) & OBD_CONNECT_XATTR))
558 GOTO(out, rc = -EOPNOTSUPP);
559 } else if (strncmp(xattr_name, XATTR_TRUSTED_PREFIX,
560 sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0) {
562 /* setxattr(LMV) with lum is used to shrink dir layout */
563 if (strcmp(xattr_name, XATTR_NAME_LMV) == 0) {
564 __u32 *magic = rr->rr_eadata;
566 /* we don't let to remove LMV? */
570 if (le32_to_cpu(*magic) == LMV_USER_MAGIC ||
571 le32_to_cpu(*magic) == LMV_USER_MAGIC_SPECIFIC) {
572 rc = mdt_dir_layout_update(info);
577 if (!md_capable(mdt_ucred(info), CFS_CAP_SYS_ADMIN))
578 GOTO(out, rc = -EPERM);
580 if (strcmp(xattr_name, XATTR_NAME_LOV) == 0 ||
581 strcmp(xattr_name, XATTR_NAME_LMA) == 0 ||
582 strcmp(xattr_name, XATTR_NAME_LMV) == 0 ||
583 strcmp(xattr_name, XATTR_NAME_LINK) == 0 ||
584 strcmp(xattr_name, XATTR_NAME_FID) == 0 ||
585 strcmp(xattr_name, XATTR_NAME_VERSION) == 0 ||
586 strcmp(xattr_name, XATTR_NAME_SOM) == 0 ||
587 strcmp(xattr_name, XATTR_NAME_HSM) == 0 ||
588 strcmp(xattr_name, XATTR_NAME_LFSCK_NAMESPACE) == 0)
590 } else if ((valid & OBD_MD_FLXATTR) &&
591 (strcmp(xattr_name, XATTR_NAME_ACL_ACCESS) == 0 ||
592 strcmp(xattr_name, XATTR_NAME_ACL_DEFAULT) == 0)) {
593 rc = mdt_nodemap_map_acl(info, rr->rr_eadata, xattr_len,
594 xattr_name, NODEMAP_CLIENT_TO_FS);
597 /* ACLs were mapped out, return an error so the user knows */
599 GOTO(out, rc = -EPERM);
600 } else if ((strlen(xattr_name) > sizeof(XATTR_LUSTRE_LOV)) &&
601 strncmp(xattr_name, XATTR_LUSTRE_LOV,
602 strlen(XATTR_LUSTRE_LOV)) == 0) {
604 if (!allowed_lustre_lov(xattr_name)) {
605 CERROR("%s: invalid xattr name: %s\n",
606 mdt_obd_name(info->mti_mdt), xattr_name);
607 GOTO(out, rc = -EINVAL);
610 lockpart |= MDS_INODELOCK_LAYOUT;
613 /* Revoke all clients' lookup lock, since the access
614 * permissions for this inode is changed when ACL_ACCESS is
615 * set. This isn't needed for ACL_DEFAULT, since that does
616 * not change the access permissions of this inode, nor any
617 * other existing inodes. It is setting the ACLs inherited
618 * by new directories/files at create time.
620 /* We need revoke both LOOKUP|PERM lock here, see mdt_attr_set. */
621 if (!strcmp(xattr_name, XATTR_NAME_ACL_ACCESS))
622 lockpart |= MDS_INODELOCK_PERM | MDS_INODELOCK_LOOKUP;
623 /* We need to take the lock on behalf of old clients so that newer
624 * clients flush their xattr caches
627 lockpart |= MDS_INODELOCK_XATTR;
629 lh = &info->mti_lh[MDT_LH_PARENT];
630 /* ACLs were sent to clients under LCK_CR locks, so taking LCK_EX
633 mdt_lock_reg_init(lh, LCK_EX);
634 obj = mdt_object_find_lock(info, rr->rr_fid1, lh, lockpart);
636 GOTO(out, rc = PTR_ERR(obj));
638 tgt_vbr_obj_set(env, mdt_obj2dt(obj));
639 rc = mdt_version_get_check_save(info, obj, 0);
641 GOTO(out_unlock, rc);
643 if (unlikely(!(valid & OBD_MD_FLCTIME))) {
644 /* This isn't strictly an error, but all current clients
645 * should set OBD_MD_FLCTIME when setting attributes.
647 CWARN("%s: client miss to set OBD_MD_FLCTIME when setxattr %s: [object "DFID"] [valid %llu]\n",
648 mdt_obd_name(info->mti_mdt), xattr_name,
649 PFID(rr->rr_fid1), valid);
650 attr->la_ctime = ktime_get_real_seconds();
652 attr->la_valid = LA_CTIME;
653 child = mdt_object_child(obj);
654 if (valid & OBD_MD_FLXATTR) {
657 if (attr->la_flags & XATTR_REPLACE)
658 flags |= LU_XATTR_REPLACE;
660 if (attr->la_flags & XATTR_CREATE)
661 flags |= LU_XATTR_CREATE;
663 mdt_fail_write(env, info->mti_mdt->mdt_bottom,
664 OBD_FAIL_MDS_SETXATTR_WRITE);
666 buf->lb_buf = rr->rr_eadata;
667 buf->lb_len = xattr_len;
668 rc = mo_xattr_set(env, child, buf, xattr_name, flags);
669 /* update ctime after xattr changed */
671 ma->ma_attr_flags |= MDS_PERM_BYPASS;
672 mo_attr_set(env, child, ma);
674 } else if (valid & OBD_MD_FLXATTRRM) {
675 rc = mo_xattr_del(env, child, xattr_name);
676 /* update ctime after xattr changed */
678 ma->ma_attr_flags |= MDS_PERM_BYPASS;
679 mo_attr_set(env, child, ma);
682 CDEBUG(D_INFO, "valid bits: %#llx\n", valid);
687 mdt_counter_incr(req, LPROC_MDT_SETXATTR);
691 mdt_object_unlock_put(info, obj, lh, rc);
693 mdt_exit_ucred(info);