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) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/osd-zfs/osd_object.c
34 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
35 * Author: Mike Pershin <tappro@whamcloud.com>
36 * Author: Johann Lombardi <johann@whamcloud.com>
39 #define DEBUG_SUBSYSTEM S_OSD
41 #include <lustre_ver.h>
42 #include <libcfs/libcfs.h>
43 #include <obd_support.h>
44 #include <lustre_net.h>
46 #include <obd_class.h>
47 #include <lustre_disk.h>
48 #include <lustre_fid.h>
50 #include "osd_internal.h"
52 #include <sys/dnode.h>
57 #include <sys/spa_impl.h>
58 #include <sys/zfs_znode.h>
59 #include <sys/dmu_tx.h>
60 #include <sys/dmu_objset.h>
61 #include <sys/dsl_prop.h>
62 #include <sys/sa_impl.h>
65 char *osd_obj_tag = "osd_object";
67 static struct dt_object_operations osd_obj_ops;
68 static struct lu_object_operations osd_lu_obj_ops;
69 extern struct dt_body_operations osd_body_ops;
70 static struct dt_object_operations osd_obj_otable_it_ops;
72 extern struct kmem_cache *osd_object_kmem;
75 osd_object_sa_fini(struct osd_object *obj)
78 sa_handle_destroy(obj->oo_sa_hdl);
79 obj->oo_sa_hdl = NULL;
84 osd_object_sa_init(struct osd_object *obj, struct osd_device *o)
88 LASSERT(obj->oo_sa_hdl == NULL);
89 LASSERT(obj->oo_dn != NULL);
91 rc = osd_sa_handle_get(obj);
95 /* Cache the xattr object id, valid for the life of the object */
96 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(o), &obj->oo_xattr, 8);
98 obj->oo_xattr = ZFS_NO_OBJECT;
101 osd_object_sa_fini(obj);
108 * Add object to list of dirty objects in tx handle.
111 osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
113 if (!list_empty(&obj->oo_sa_linkage))
116 down(&oh->ot_sa_lock);
117 write_lock(&obj->oo_attr_lock);
118 if (likely(list_empty(&obj->oo_sa_linkage)))
119 list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
120 write_unlock(&obj->oo_attr_lock);
125 * Release spill block dbuf hold for all dirty SAs.
127 void osd_object_sa_dirty_rele(struct osd_thandle *oh)
129 struct osd_object *obj;
131 down(&oh->ot_sa_lock);
132 while (!list_empty(&oh->ot_sa_list)) {
133 obj = list_entry(oh->ot_sa_list.next,
134 struct osd_object, oo_sa_linkage);
135 sa_spill_rele(obj->oo_sa_hdl);
136 write_lock(&obj->oo_attr_lock);
137 list_del_init(&obj->oo_sa_linkage);
138 write_unlock(&obj->oo_attr_lock);
144 * Update the SA and add the object to the dirty list.
146 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
147 void *buf, uint32_t buflen, struct osd_thandle *oh)
151 LASSERT(obj->oo_sa_hdl != NULL);
152 LASSERT(oh->ot_tx != NULL);
154 rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
155 osd_object_sa_dirty_add(obj, oh);
161 * Bulk update the SA and add the object to the dirty list.
164 osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
165 int count, struct osd_thandle *oh)
169 LASSERT(obj->oo_sa_hdl != NULL);
170 LASSERT(oh->ot_tx != NULL);
172 rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
173 osd_object_sa_dirty_add(obj, oh);
179 * Retrieve the attributes of a DMU object
181 int __osd_object_attr_get(const struct lu_env *env, struct osd_device *o,
182 struct osd_object *obj, struct lu_attr *la)
184 struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
185 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
190 LASSERT(obj->oo_dn != NULL);
192 la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE | LA_TYPE |
193 LA_SIZE | LA_UID | LA_GID | LA_FLAGS | LA_NLINK;
195 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(o), NULL, osa->atime, 16);
196 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(o), NULL, osa->mtime, 16);
197 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(o), NULL, osa->ctime, 16);
198 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(o), NULL, &osa->mode, 8);
199 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(o), NULL, &osa->size, 8);
200 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(o), NULL, &osa->nlink, 8);
201 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(o), NULL, &osa->uid, 8);
202 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(o), NULL, &osa->gid, 8);
203 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(o), NULL, &osa->flags, 8);
204 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
206 rc = -sa_bulk_lookup(obj->oo_sa_hdl, bulk, cnt);
210 la->la_atime = osa->atime[0];
211 la->la_mtime = osa->mtime[0];
212 la->la_ctime = osa->ctime[0];
213 la->la_mode = osa->mode;
214 la->la_uid = osa->uid;
215 la->la_gid = osa->gid;
216 la->la_nlink = osa->nlink;
217 la->la_flags = attrs_zfs2fs(osa->flags);
218 la->la_size = osa->size;
220 /* Try to get extra flag from LMA. Right now, only LMAI_ORPHAN
221 * flags is stored in LMA, and it is only for orphan directory */
222 if (S_ISDIR(la->la_mode) && dt_object_exists(&obj->oo_dt)) {
223 struct osd_thread_info *info = osd_oti_get(env);
224 struct lustre_mdt_attrs *lma;
227 lma = (struct lustre_mdt_attrs *)info->oti_buf;
229 buf.lb_len = sizeof(info->oti_buf);
230 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
233 lma->lma_incompat = le32_to_cpu(lma->lma_incompat);
235 lma_to_lustre_flags(lma->lma_incompat);
237 } else if (rc == -ENODATA) {
242 if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
243 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_RDEV(o), &osa->rdev, 8);
246 la->la_rdev = osa->rdev;
247 la->la_valid |= LA_RDEV;
254 int __osd_obj2dnode(objset_t *os, uint64_t oid, dnode_t **dnp)
260 rc = -dmu_bonus_hold(os, oid, osd_obj_tag, &db);
264 dbi = (dmu_buf_impl_t *)db;
266 *dnp = DB_DNODE(dbi);
267 LASSERT(*dnp != NULL);
273 * Concurrency: no concurrent access is possible that early in object
276 struct lu_object *osd_object_alloc(const struct lu_env *env,
277 const struct lu_object_header *hdr,
280 struct osd_object *mo;
282 OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
286 l = &mo->oo_dt.do_lu;
287 dt_object_init(&mo->oo_dt, NULL, d);
288 mo->oo_dt.do_ops = &osd_obj_ops;
289 l->lo_ops = &osd_lu_obj_ops;
290 INIT_LIST_HEAD(&mo->oo_sa_linkage);
291 INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
292 init_rwsem(&mo->oo_sem);
293 init_rwsem(&mo->oo_guard);
294 rwlock_init(&mo->oo_attr_lock);
295 mo->oo_destroy = OSD_DESTROY_NONE;
303 * Concurrency: shouldn't matter.
305 int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
307 struct osd_device *osd = osd_obj2dev(obj);
308 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
312 if (obj->oo_dn == NULL)
317 rc = osd_object_sa_init(obj, osd);
321 /* cache attrs in object */
322 rc = __osd_object_attr_get(env, osd, obj, &obj->oo_attr);
326 if (likely(!fid_is_acct(fid)))
327 /* no body operations for accounting objects */
328 obj->oo_dt.do_body_ops = &osd_body_ops;
331 * initialize object before marking it existing
333 obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
336 obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
341 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
343 struct osd_thread_info *info = osd_oti_get(env);
346 struct lustre_mdt_attrs *lma;
349 CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
350 lma = (struct lustre_mdt_attrs *)info->oti_buf;
352 buf.lb_len = sizeof(info->oti_buf);
354 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
357 lustre_lma_swab(lma);
358 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
359 CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
360 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
361 "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
362 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
363 PFID(lu_object_fid(&obj->oo_dt.do_lu)));
366 } else if (rc == -ENODATA) {
367 /* haven't initialize LMA xattr */
375 * Concurrency: no concurrent access is possible that early in object
378 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
379 const struct lu_object_conf *conf)
381 struct osd_object *obj = osd_obj(l);
382 struct osd_device *osd = osd_obj2dev(obj);
387 LASSERT(osd_invariant(obj));
389 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
390 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
391 l->lo_header->loh_attr |= LOHA_EXISTS;
395 if (conf != NULL && conf->loc_flags & LOC_F_NEW)
398 rc = osd_fid_lookup(env, osd, lu_object_fid(l), &oid);
400 LASSERT(obj->oo_dn == NULL);
401 rc = __osd_obj2dnode(osd->od_os, oid, &obj->oo_dn);
402 /* EEXIST will be returned if object is being deleted in ZFS */
408 CERROR("%s: lookup "DFID"/%#llx failed: rc = %d\n",
409 osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
413 rc = osd_object_init0(env, obj);
417 rc = osd_check_lma(env, obj);
420 } else if (rc == -ENOENT) {
423 LASSERT(osd_invariant(obj));
429 * Concurrency: no concurrent access is possible that late in object
432 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
434 struct osd_object *obj = osd_obj(l);
436 LASSERT(osd_invariant(obj));
438 dt_object_fini(&obj->oo_dt);
439 OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
443 osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
447 LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
449 /* the object is supposed to be exclusively locked by
450 * the caller (osd_destroy()), while the transaction
451 * (oh) is per-thread and not shared */
452 if (likely(list_empty(&obj->oo_unlinked_linkage))) {
453 list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
460 /* Default to max data size covered by a level-1 indirect block */
461 static unsigned long osd_sync_destroy_max_size =
462 1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
463 module_param(osd_sync_destroy_max_size, ulong, 0444);
464 MODULE_PARM_DESC(osd_sync_destroy_max_size, "Maximum object size to use synchronous destroy.");
467 osd_object_set_destroy_type(struct osd_object *obj)
470 * Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
471 * only once and use it consistently thereafter.
473 down_write(&obj->oo_guard);
474 if (obj->oo_destroy == OSD_DESTROY_NONE) {
475 if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
476 obj->oo_destroy = OSD_DESTROY_SYNC;
477 else /* Larger objects are destroyed asynchronously */
478 obj->oo_destroy = OSD_DESTROY_ASYNC;
480 up_write(&obj->oo_guard);
483 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
486 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
487 struct osd_object *obj = osd_dt_obj(dt);
488 struct osd_device *osd = osd_obj2dev(obj);
489 struct osd_thandle *oh;
496 LASSERT(dt_object_exists(dt));
498 oh = container_of0(th, struct osd_thandle, ot_super);
499 LASSERT(oh->ot_tx != NULL);
501 /* declare that we'll remove object from fid-dnode mapping */
502 zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
503 osd_tx_hold_zap(oh->ot_tx, zapid, dn, FALSE, NULL);
505 osd_declare_xattrs_destroy(env, obj, oh);
508 rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
509 obj->oo_attr.la_gid, -1, oh, false, NULL, false);
513 /* data to be truncated */
514 rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
515 obj->oo_attr.la_gid, 0, oh, true, NULL, false);
519 osd_object_set_destroy_type(obj);
520 if (obj->oo_destroy == OSD_DESTROY_SYNC)
521 dmu_tx_hold_free(oh->ot_tx, obj->oo_dn->dn_object,
524 osd_tx_hold_zap(oh->ot_tx, osd->od_unlinked->dn_object,
525 osd->od_unlinked, TRUE, NULL);
527 /* will help to find FID->ino when this object is being
528 * added to PENDING/ */
529 osd_idc_find_and_init(env, osd, obj);
534 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
537 struct osd_thread_info *info = osd_oti_get(env);
538 char *buf = info->oti_str;
539 struct osd_object *obj = osd_dt_obj(dt);
540 struct osd_device *osd = osd_obj2dev(obj);
541 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
542 struct osd_thandle *oh;
548 down_write(&obj->oo_guard);
550 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
551 GOTO(out, rc = -ENOENT);
553 LASSERT(obj->oo_dn != NULL);
555 oh = container_of0(th, struct osd_thandle, ot_super);
557 LASSERT(oh->ot_tx != NULL);
559 /* remove obj ref from index dir (it depends) */
560 zapid = osd_get_name_n_idx(env, osd, fid, buf,
561 sizeof(info->oti_str), &zdn);
562 rc = osd_zap_remove(osd, zapid, zdn, buf, oh->ot_tx);
564 CERROR("%s: zap_remove(%s) failed: rc = %d\n",
565 osd->od_svname, buf, rc);
569 rc = osd_xattrs_destroy(env, obj, oh);
571 CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
572 osd->od_svname, buf, rc);
576 oid = obj->oo_dn->dn_object;
577 if (unlikely(obj->oo_destroy == OSD_DESTROY_NONE)) {
578 /* this may happen if the destroy wasn't declared
579 * e.g. when the object is created and then destroyed
580 * in the same transaction - we don't need additional
581 * space for destroy specifically */
582 LASSERT(obj->oo_attr.la_size <= osd_sync_destroy_max_size);
583 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
585 CERROR("%s: failed to free %s %llu: rc = %d\n",
586 osd->od_svname, buf, oid, rc);
587 } else if (obj->oo_destroy == OSD_DESTROY_SYNC) {
588 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
590 CERROR("%s: failed to free %s %llu: rc = %d\n",
591 osd->od_svname, buf, oid, rc);
592 } else { /* asynchronous destroy */
593 char *key = info->oti_key;
595 rc = osd_object_unlinked_add(obj, oh);
599 snprintf(key, sizeof(info->oti_key), "%llx", oid);
600 rc = osd_zap_add(osd, osd->od_unlinked->dn_object,
601 osd->od_unlinked, key, 8, 1, &oid, oh->ot_tx);
603 CERROR("%s: zap_add_int() failed %s %llu: rc = %d\n",
604 osd->od_svname, buf, oid, rc);
608 /* not needed in the cache anymore */
609 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
611 obj->oo_destroyed = 1;
612 up_write(&obj->oo_guard);
616 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
618 struct osd_object *obj = osd_obj(l);
620 if (obj->oo_dn != NULL) {
621 osd_object_sa_fini(obj);
622 if (obj->oo_sa_xattr) {
623 nvlist_free(obj->oo_sa_xattr);
624 obj->oo_sa_xattr = NULL;
626 osd_dnode_rele(obj->oo_dn);
627 list_del(&obj->oo_sa_linkage);
633 * Concurrency: ->loo_object_release() is called under site spin-lock.
635 static void osd_object_release(const struct lu_env *env,
641 * Concurrency: shouldn't matter.
643 static int osd_object_print(const struct lu_env *env, void *cookie,
644 lu_printer_t p, const struct lu_object *l)
646 struct osd_object *o = osd_obj(l);
648 return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
651 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
654 struct osd_object *obj = osd_dt_obj(dt);
656 LASSERT(osd_invariant(obj));
658 down_read_nested(&obj->oo_sem, role);
661 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
664 struct osd_object *obj = osd_dt_obj(dt);
666 LASSERT(osd_invariant(obj));
668 down_write_nested(&obj->oo_sem, role);
671 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
673 struct osd_object *obj = osd_dt_obj(dt);
675 LASSERT(osd_invariant(obj));
676 up_read(&obj->oo_sem);
679 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
681 struct osd_object *obj = osd_dt_obj(dt);
683 LASSERT(osd_invariant(obj));
684 up_write(&obj->oo_sem);
687 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
689 struct osd_object *obj = osd_dt_obj(dt);
692 LASSERT(osd_invariant(obj));
694 if (down_write_trylock(&obj->oo_sem)) {
696 up_write(&obj->oo_sem);
701 static int osd_attr_get(const struct lu_env *env,
702 struct dt_object *dt,
703 struct lu_attr *attr)
705 struct osd_object *obj = osd_dt_obj(dt);
710 down_read(&obj->oo_guard);
712 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
713 GOTO(out, rc = -ENOENT);
715 LASSERT(osd_invariant(obj));
718 read_lock(&obj->oo_attr_lock);
719 *attr = obj->oo_attr;
720 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
721 attr->la_flags |= LUSTRE_ORPHAN_FL;
722 read_unlock(&obj->oo_attr_lock);
724 /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
725 * from within sa_object_size() can block on a mutex, so
726 * we can't call sa_object_size() holding rwlock */
727 sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
728 /* we do not control size of indices, so always calculate
729 * it from number of blocks reported by DMU */
730 if (S_ISDIR(attr->la_mode))
731 attr->la_size = 512 * blocks;
732 /* Block size may be not set; suggest maximal I/O transfers. */
734 blksize = osd_spa_maxblocksize(
735 dmu_objset_spa(osd_obj2dev(obj)->od_os));
737 attr->la_blksize = blksize;
738 attr->la_blocks = blocks;
739 attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
742 up_read(&obj->oo_guard);
746 /* Simple wrapper on top of qsd API which implement quota transfer for osd
747 * setattr needs. As a reminder, only the root user can change ownership of
748 * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
749 static inline int qsd_transfer(const struct lu_env *env,
750 struct qsd_instance *qsd,
751 struct lquota_trans *trans, int qtype,
752 __u64 orig_id, __u64 new_id, __u64 bspace,
753 struct lquota_id_info *qi)
757 if (unlikely(qsd == NULL))
760 LASSERT(qtype >= 0 && qtype < LL_MAXQUOTAS);
761 qi->lqi_type = qtype;
763 /* inode accounting */
764 qi->lqi_is_blk = false;
766 /* one more inode for the new owner ... */
767 qi->lqi_id.qid_uid = new_id;
769 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
770 if (rc == -EDQUOT || rc == -EINPROGRESS)
775 /* and one less inode for the current id */
776 qi->lqi_id.qid_uid = orig_id;;
778 /* can't get EDQUOT when reducing usage */
779 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
780 if (rc == -EINPROGRESS)
785 /* block accounting */
786 qi->lqi_is_blk = true;
788 /* more blocks for the new owner ... */
789 qi->lqi_id.qid_uid = new_id;
790 qi->lqi_space = bspace;
791 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
792 if (rc == -EDQUOT || rc == -EINPROGRESS)
797 /* and finally less blocks for the current owner */
798 qi->lqi_id.qid_uid = orig_id;
799 qi->lqi_space = -bspace;
800 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
801 /* can't get EDQUOT when reducing usage */
802 if (rc == -EINPROGRESS)
807 static int osd_declare_attr_set(const struct lu_env *env,
808 struct dt_object *dt,
809 const struct lu_attr *attr,
810 struct thandle *handle)
812 struct osd_thread_info *info = osd_oti_get(env);
813 struct osd_object *obj = osd_dt_obj(dt);
814 struct osd_device *osd = osd_obj2dev(obj);
816 struct osd_thandle *oh;
824 LASSERT(handle != NULL);
825 LASSERT(osd_invariant(obj));
827 oh = container_of0(handle, struct osd_thandle, ot_super);
829 down_read(&obj->oo_guard);
830 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
833 LASSERT(obj->oo_sa_hdl != NULL);
834 LASSERT(oh->ot_tx != NULL);
835 /* regular attributes are part of the bonus buffer */
836 /* let's check whether this object is already part of
839 for (txh = list_head(&oh->ot_tx->tx_holds); txh;
840 txh = list_next(&oh->ot_tx->tx_holds, txh)) {
841 if (txh->txh_dnode == NULL)
843 if (txh->txh_dnode->dn_object != obj->oo_dn->dn_object)
845 /* this object is part of the transaction already
846 * we don't need to declare bonus again */
851 dmu_tx_hold_bonus(oh->ot_tx, obj->oo_dn->dn_object);
852 if (oh->ot_tx->tx_err != 0)
853 GOTO(out, rc = -oh->ot_tx->tx_err);
855 if (attr && attr->la_valid & LA_FLAGS) {
856 /* LMA is usually a part of bonus, no need to declare
860 if (attr && (attr->la_valid & (LA_UID | LA_GID))) {
861 sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
862 bspace = toqb(bspace * blksize);
865 if (attr && attr->la_valid & LA_UID) {
866 /* quota enforcement for user */
867 if (attr->la_uid != obj->oo_attr.la_uid) {
868 rc = qsd_transfer(env, osd->od_quota_slave,
869 &oh->ot_quota_trans, USRQUOTA,
870 obj->oo_attr.la_uid, attr->la_uid,
871 bspace, &info->oti_qi);
876 if (attr && attr->la_valid & LA_GID) {
877 /* quota enforcement for group */
878 if (attr->la_gid != obj->oo_attr.la_gid) {
879 rc = qsd_transfer(env, osd->od_quota_slave,
880 &oh->ot_quota_trans, GRPQUOTA,
881 obj->oo_attr.la_gid, attr->la_gid,
882 bspace, &info->oti_qi);
889 up_read(&obj->oo_guard);
894 * Set the attributes of an object
896 * The transaction passed to this routine must have
897 * dmu_tx_hold_bonus(tx, oid) called and then assigned
898 * to a transaction group.
900 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
901 const struct lu_attr *la, struct thandle *handle)
903 struct osd_thread_info *info = osd_oti_get(env);
904 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
905 struct osd_object *obj = osd_dt_obj(dt);
906 struct osd_device *osd = osd_obj2dev(obj);
907 struct osd_thandle *oh;
908 struct osa_attr *osa = &info->oti_osa;
909 __u64 valid = la->la_valid;
915 down_read(&obj->oo_guard);
916 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
917 GOTO(out, rc = -ENOENT);
919 LASSERT(handle != NULL);
920 LASSERT(osd_invariant(obj));
921 LASSERT(obj->oo_sa_hdl);
923 oh = container_of0(handle, struct osd_thandle, ot_super);
924 /* Assert that the transaction has been assigned to a
925 transaction group. */
926 LASSERT(oh->ot_tx->tx_txg != 0);
928 /* Only allow set size for regular file */
929 if (!S_ISREG(dt->do_lu.lo_header->loh_attr))
930 valid &= ~(LA_SIZE | LA_BLOCKS);
932 if (valid & LA_CTIME && la->la_ctime == obj->oo_attr.la_ctime)
935 if (valid & LA_MTIME && la->la_mtime == obj->oo_attr.la_mtime)
938 if (valid & LA_ATIME && la->la_atime == obj->oo_attr.la_atime)
944 if (valid & LA_FLAGS) {
945 struct lustre_mdt_attrs *lma;
948 if (la->la_flags & LUSTRE_LMA_FL_MASKS) {
949 CLASSERT(sizeof(info->oti_buf) >= sizeof(*lma));
950 lma = (struct lustre_mdt_attrs *)&info->oti_buf;
952 buf.lb_len = sizeof(info->oti_buf);
953 rc = osd_xattr_get(env, &obj->oo_dt, &buf,
957 le32_to_cpu(lma->lma_incompat);
959 lustre_to_lma_flags(la->la_flags);
961 cpu_to_le32(lma->lma_incompat);
963 buf.lb_len = sizeof(*lma);
964 rc = osd_xattr_set_internal(env, obj, &buf,
970 CWARN("%s: failed to set LMA flags: rc = %d\n",
977 write_lock(&obj->oo_attr_lock);
979 if (valid & LA_ATIME) {
980 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
981 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL,
984 if (valid & LA_MTIME) {
985 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
986 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL,
989 if (valid & LA_CTIME) {
990 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
991 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL,
994 if (valid & LA_MODE) {
995 /* mode is stored along with type, so read it first */
996 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
997 (la->la_mode & ~S_IFMT);
998 osa->mode = obj->oo_attr.la_mode;
999 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL,
1002 if (valid & LA_SIZE) {
1003 osa->size = obj->oo_attr.la_size = la->la_size;
1004 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL,
1007 if (valid & LA_NLINK) {
1008 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1009 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL,
1012 if (valid & LA_RDEV) {
1013 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1014 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL,
1017 if (valid & LA_FLAGS) {
1018 osa->flags = attrs_fs2zfs(la->la_flags);
1019 /* many flags are not supported by zfs, so ensure a good cached
1021 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1022 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL,
1025 if (valid & LA_UID) {
1026 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1027 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL,
1030 if (valid & LA_GID) {
1031 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1032 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL,
1035 obj->oo_attr.la_valid |= valid;
1036 write_unlock(&obj->oo_attr_lock);
1038 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1039 rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1042 up_read(&obj->oo_guard);
1049 * XXX temporary solution.
1052 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1053 struct dt_object *parent, struct dt_object *child,
1058 ah->dah_parent = parent;
1059 ah->dah_mode = child_mode;
1061 if (parent != NULL && !dt_object_remote(parent)) {
1062 /* will help to find FID->ino at dt_insert("..") */
1063 struct osd_object *pobj = osd_dt_obj(parent);
1065 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
1069 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
1070 struct lu_attr *attr,
1071 struct dt_allocation_hint *hint,
1072 struct dt_object_format *dof,
1073 struct thandle *handle)
1075 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1076 struct osd_object *obj = osd_dt_obj(dt);
1077 struct osd_device *osd = osd_obj2dev(obj);
1078 struct osd_thandle *oh;
1086 switch (dof->dof_type) {
1090 if (obj->oo_dt.do_body_ops == NULL)
1091 obj->oo_dt.do_body_ops = &osd_body_ops;
1097 LASSERT(handle != NULL);
1098 oh = container_of0(handle, struct osd_thandle, ot_super);
1099 LASSERT(oh->ot_tx != NULL);
1101 /* this is the minimum set of EAs on every Lustre object */
1102 obj->oo_ea_in_bonus = ZFS_SA_BASE_ATTR_SIZE +
1103 sizeof(__u64) + /* VBR VERSION */
1104 sizeof(struct lustre_mdt_attrs); /* LMA */
1105 /* reserve 32 bytes for extra stuff like ACLs */
1106 dnode_size = size_roundup_power2(obj->oo_ea_in_bonus + 32);
1108 switch (dof->dof_type) {
1110 dt->do_index_ops = &osd_dir_ops;
1112 /* for zap create */
1113 dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, FALSE, NULL);
1114 dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1119 /* first, we'll create new object */
1120 dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1128 /* and we'll add it to some mapping */
1129 zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
1130 osd_tx_hold_zap(oh->ot_tx, zapid, dn, TRUE, NULL);
1132 /* will help to find FID->ino mapping at dt_insert() */
1133 osd_idc_find_and_init(env, osd, obj);
1135 rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid, 1, oh,
1136 false, NULL, false);
1141 int __osd_attr_init(const struct lu_env *env, struct osd_device *osd,
1142 sa_handle_t *sa_hdl, dmu_tx_t *tx,
1143 struct lu_attr *la, uint64_t parent)
1145 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
1146 struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1155 gen = dmu_tx_get_txg(tx);
1157 ZFS_TIME_ENCODE(&now, crtime);
1159 osa->atime[0] = la->la_atime;
1160 osa->ctime[0] = la->la_ctime;
1161 osa->mtime[0] = la->la_mtime;
1162 osa->mode = la->la_mode;
1163 osa->uid = la->la_uid;
1164 osa->gid = la->la_gid;
1165 osa->rdev = la->la_rdev;
1166 osa->nlink = la->la_nlink;
1167 osa->flags = attrs_fs2zfs(la->la_flags);
1168 osa->size = la->la_size;
1171 * we need to create all SA below upon object create.
1173 * XXX The attribute order matters since the accounting callback relies
1174 * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1175 * look up the UID/GID attributes. Moreover, the callback does not seem
1176 * to support the spill block.
1177 * We define attributes in the same order as SA_*_OFFSET in order to
1178 * work around the problem. See ORI-610.
1181 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
1182 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
1183 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
1184 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
1185 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
1186 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL, &parent, 8);
1187 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
1188 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
1189 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
1190 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
1191 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, crtime, 16);
1192 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
1193 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
1194 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1196 rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1201 static int osd_find_new_dnode(const struct lu_env *env, dmu_tx_t *tx,
1202 uint64_t oid, dnode_t **dnp)
1207 /* take dnode_t from tx to save on dnode#->dnode_t lookup */
1208 for (txh = list_tail(&tx->tx_holds); txh;
1209 txh = list_prev(&tx->tx_holds, txh)) {
1210 dnode_t *dn = txh->txh_dnode;
1215 if (dn->dn_object != oid)
1219 rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
1220 if (dn->dn_bonus == NULL)
1221 dbuf_create_bonus(dn);
1222 rw_exit(&dn->dn_struct_rwlock);
1226 LASSERT(dn->dn_handle);
1228 if (refcount_add(&db->db_holds, osd_obj_tag) == 1) {
1229 refcount_add(&dn->dn_holds, tag);
1230 atomic_inc_32(&dn->dn_dbufs_count);
1233 dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | DB_RF_NOPREFETCH);
1237 if (unlikely(*dnp == NULL))
1238 rc = __osd_obj2dnode(tx->tx_objset, oid, dnp);
1244 * The transaction passed to this routine must have
1245 * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1246 * to a transaction group.
1248 int __osd_object_create(const struct lu_env *env, struct osd_object *obj,
1249 dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la)
1251 struct osd_device *osd = osd_obj2dev(obj);
1252 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1253 dmu_object_type_t type = DMU_OT_PLAIN_FILE_CONTENTS;
1256 /* Use DMU_OTN_UINT8_METADATA for local objects so their data blocks
1257 * would get an additional ditto copy */
1258 if (unlikely(S_ISREG(la->la_mode) &&
1259 fid_seq_is_local_file(fid_seq(fid))))
1260 type = DMU_OTN_UINT8_METADATA;
1262 /* Create a new DMU object using the default dnode size. */
1263 oid = osd_dmu_object_alloc(osd->od_os, type, 0, 0, tx);
1265 LASSERT(la->la_valid & LA_MODE);
1269 return osd_find_new_dnode(env, tx, oid, dnp);
1273 * The transaction passed to this routine must have
1274 * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1275 * to a transaction group.
1277 * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1278 * This is fine for directories today, because storing the FID in the dirent
1279 * will also require a FAT ZAP. If there is a new type of micro ZAP created
1280 * then we might need to re-evaluate the use of this flag and instead do
1281 * a conversion from the different internal ZAP hash formats being used. */
1282 int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
1283 dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la,
1288 /* Assert that the transaction has been assigned to a
1289 transaction group. */
1290 LASSERT(tx->tx_txg != 0);
1293 oid = osd_zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
1294 DMU_OT_DIRECTORY_CONTENTS,
1295 14, /* == ZFS fzap_default_blockshift */
1296 DN_MAX_INDBLKSHIFT, /* indirect blockshift */
1302 return osd_find_new_dnode(env, tx, oid, dnp);
1305 static dnode_t *osd_mkidx(const struct lu_env *env, struct osd_object *obj,
1306 struct lu_attr *la, struct osd_thandle *oh)
1311 /* Index file should be created as regular file in order not to confuse
1312 * ZPL which could interpret them as directory.
1313 * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1315 LASSERT(S_ISREG(la->la_mode));
1316 rc = __osd_zap_create(env, osd_obj2dev(obj), &dn, oh->ot_tx, la,
1317 ZAP_FLAG_UINT64_KEY);
1323 static dnode_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
1324 struct lu_attr *la, struct osd_thandle *oh)
1329 LASSERT(S_ISDIR(la->la_mode));
1330 rc = __osd_zap_create(env, osd_obj2dev(obj), &dn, oh->ot_tx, la, 0);
1336 static dnode_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
1337 struct lu_attr *la, struct osd_thandle *oh)
1339 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1340 struct osd_device *osd = osd_obj2dev(obj);
1344 LASSERT(S_ISREG(la->la_mode));
1345 rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1349 if ((fid_is_idif(fid) || fid_is_norm(fid) || fid_is_echo(fid)) &&
1351 /* The minimum block size must be at least page size otherwise
1352 * it will break the assumption in tgt_thread_big_cache where
1353 * the array size is PTLRPC_MAX_BRW_PAGES. It will also affect
1354 * RDMA due to subpage transfer size */
1355 rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
1356 PAGE_SIZE, 0, oh->ot_tx);
1358 CERROR("%s: can't change blocksize: %d\n",
1359 osd->od_svname, rc);
1367 static dnode_t *osd_mksym(const struct lu_env *env, struct osd_object *obj,
1368 struct lu_attr *la, struct osd_thandle *oh)
1373 LASSERT(S_ISLNK(la->la_mode));
1374 rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1380 static dnode_t *osd_mknod(const struct lu_env *env, struct osd_object *obj,
1381 struct lu_attr *la, struct osd_thandle *oh)
1386 if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1387 la->la_valid |= LA_RDEV;
1389 rc = __osd_object_create(env, obj, &dn, oh->ot_tx, la);
1395 typedef dnode_t *(*osd_obj_type_f)(const struct lu_env *env,
1396 struct osd_object *obj,
1398 struct osd_thandle *oh);
1400 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1402 osd_obj_type_f result;
1428 * Concurrency: @dt is write locked.
1430 static int osd_create(const struct lu_env *env, struct dt_object *dt,
1431 struct lu_attr *attr, struct dt_allocation_hint *hint,
1432 struct dt_object_format *dof, struct thandle *th)
1434 struct osd_thread_info *info = osd_oti_get(env);
1435 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1436 struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
1437 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1438 struct osd_object *obj = osd_dt_obj(dt);
1439 struct osd_device *osd = osd_obj2dev(obj);
1440 char *buf = info->oti_str;
1441 struct osd_thandle *oh;
1442 dnode_t *dn = NULL, *zdn = NULL;
1443 uint64_t zapid, parent = 0;
1448 /* concurrent create declarations should not see
1449 * the object inconsistent (db, attr, etc).
1450 * in regular cases acquisition should be cheap */
1451 down_write(&obj->oo_guard);
1453 if (unlikely(dt_object_exists(dt)))
1454 GOTO(out, rc = -EEXIST);
1456 LASSERT(osd_invariant(obj));
1457 LASSERT(dof != NULL);
1459 LASSERT(th != NULL);
1460 oh = container_of0(th, struct osd_thandle, ot_super);
1462 LASSERT(obj->oo_dn == NULL);
1464 /* to follow ZFS on-disk format we need
1465 * to initialize parent dnode properly */
1466 if (hint != NULL && hint->dah_parent != NULL &&
1467 !dt_object_remote(hint->dah_parent))
1468 parent = osd_dt_obj(hint->dah_parent)->oo_dn->dn_object;
1470 /* we may fix some attributes, better do not change the source */
1471 obj->oo_attr = *attr;
1472 obj->oo_attr.la_valid |= LA_SIZE | LA_NLINK | LA_TYPE;
1474 dn = osd_create_type_f(dof->dof_type)(env, obj, &obj->oo_attr, oh);
1482 zde->zde_dnode = dn->dn_object;
1483 zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1485 zapid = osd_get_name_n_idx(env, osd, fid, buf,
1486 sizeof(info->oti_str), &zdn);
1487 rc = osd_zap_add(osd, zapid, zdn, buf, 8, 1, zde, oh->ot_tx);
1491 /* Now add in all of the "SA" attributes */
1492 rc = osd_sa_handle_get(obj);
1496 /* configure new osd object */
1497 parent = parent != 0 ? parent : zapid;
1498 rc = __osd_attr_init(env, osd, obj->oo_sa_hdl, oh->ot_tx,
1499 &obj->oo_attr, parent);
1503 /* XXX: oo_lma_flags */
1504 obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
1505 if (likely(!fid_is_acct(lu_object_fid(&obj->oo_dt.do_lu))))
1506 /* no body operations for accounting objects */
1507 obj->oo_dt.do_body_ops = &osd_body_ops;
1509 rc = -nvlist_alloc(&obj->oo_sa_xattr, NV_UNIQUE_NAME, KM_SLEEP);
1513 /* initialize LMA */
1514 lustre_lma_init(lma, lu_object_fid(&obj->oo_dt.do_lu), 0, 0);
1515 lustre_lma_swab(lma);
1516 rc = -nvlist_add_byte_array(obj->oo_sa_xattr, XATTR_NAME_LMA,
1517 (uchar_t *)lma, sizeof(*lma));
1520 rc = __osd_sa_xattr_update(env, obj, oh);
1523 osd_idc_find_and_init(env, osd, obj);
1526 if (unlikely(rc && dn)) {
1527 dmu_object_free(osd->od_os, dn->dn_object, oh->ot_tx);
1531 obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
1533 up_write(&obj->oo_guard);
1537 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
1540 return osd_declare_attr_set(env, dt, NULL, th);
1544 * Concurrency: @dt is write locked.
1546 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
1547 struct thandle *handle)
1549 struct osd_object *obj = osd_dt_obj(dt);
1550 struct osd_thandle *oh;
1551 struct osd_device *osd = osd_obj2dev(obj);
1557 down_read(&obj->oo_guard);
1558 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1559 GOTO(out, rc = -ENOENT);
1561 LASSERT(osd_invariant(obj));
1562 LASSERT(obj->oo_sa_hdl != NULL);
1564 oh = container_of0(handle, struct osd_thandle, ot_super);
1566 write_lock(&obj->oo_attr_lock);
1567 nlink = ++obj->oo_attr.la_nlink;
1568 write_unlock(&obj->oo_attr_lock);
1570 rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1573 up_read(&obj->oo_guard);
1577 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
1578 struct thandle *handle)
1580 return osd_declare_attr_set(env, dt, NULL, handle);
1584 * Concurrency: @dt is write locked.
1586 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
1587 struct thandle *handle)
1589 struct osd_object *obj = osd_dt_obj(dt);
1590 struct osd_thandle *oh;
1591 struct osd_device *osd = osd_obj2dev(obj);
1597 down_read(&obj->oo_guard);
1599 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1600 GOTO(out, rc = -ENOENT);
1602 LASSERT(osd_invariant(obj));
1603 LASSERT(obj->oo_sa_hdl != NULL);
1605 oh = container_of0(handle, struct osd_thandle, ot_super);
1606 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1608 write_lock(&obj->oo_attr_lock);
1609 nlink = --obj->oo_attr.la_nlink;
1610 write_unlock(&obj->oo_attr_lock);
1612 rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
1615 up_read(&obj->oo_guard);
1619 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
1620 __u64 start, __u64 end)
1622 struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
1625 /* XXX: no other option than syncing the whole filesystem until we
1626 * support ZIL. If the object tracked the txg that it was last
1627 * modified in, it could pass that txg here instead of "0". Maybe
1628 * the changes are already committed, so no wait is needed at all? */
1629 if (!osd->od_dt_dev.dd_rdonly)
1630 txg_wait_synced(dmu_objset_pool(osd->od_os), 0ULL);
1635 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
1640 static struct dt_object_operations osd_obj_ops = {
1641 .do_read_lock = osd_read_lock,
1642 .do_write_lock = osd_write_lock,
1643 .do_read_unlock = osd_read_unlock,
1644 .do_write_unlock = osd_write_unlock,
1645 .do_write_locked = osd_write_locked,
1646 .do_attr_get = osd_attr_get,
1647 .do_declare_attr_set = osd_declare_attr_set,
1648 .do_attr_set = osd_attr_set,
1649 .do_ah_init = osd_ah_init,
1650 .do_declare_create = osd_declare_create,
1651 .do_create = osd_create,
1652 .do_declare_destroy = osd_declare_destroy,
1653 .do_destroy = osd_destroy,
1654 .do_index_try = osd_index_try,
1655 .do_declare_ref_add = osd_declare_ref_add,
1656 .do_ref_add = osd_ref_add,
1657 .do_declare_ref_del = osd_declare_ref_del,
1658 .do_ref_del = osd_ref_del,
1659 .do_xattr_get = osd_xattr_get,
1660 .do_declare_xattr_set = osd_declare_xattr_set,
1661 .do_xattr_set = osd_xattr_set,
1662 .do_declare_xattr_del = osd_declare_xattr_del,
1663 .do_xattr_del = osd_xattr_del,
1664 .do_xattr_list = osd_xattr_list,
1665 .do_object_sync = osd_object_sync,
1666 .do_invalidate = osd_invalidate,
1669 static struct lu_object_operations osd_lu_obj_ops = {
1670 .loo_object_init = osd_object_init,
1671 .loo_object_delete = osd_object_delete,
1672 .loo_object_release = osd_object_release,
1673 .loo_object_free = osd_object_free,
1674 .loo_object_print = osd_object_print,
1675 .loo_object_invariant = osd_object_invariant,
1678 static int osd_otable_it_attr_get(const struct lu_env *env,
1679 struct dt_object *dt,
1680 struct lu_attr *attr)
1686 static struct dt_object_operations osd_obj_otable_it_ops = {
1687 .do_attr_get = osd_otable_it_attr_get,
1688 .do_index_try = osd_index_try,