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, 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/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 <libcfs/libcfs.h>
42 #include <obd_support.h>
43 #include <lustre_net.h>
45 #include <obd_class.h>
46 #include <lustre_disk.h>
47 #include <lustre_fid.h>
49 #include "osd_internal.h"
51 #include <sys/dnode.h>
56 #include <sys/spa_impl.h>
57 #include <sys/zfs_znode.h>
58 #include <sys/dmu_tx.h>
59 #include <sys/dmu_objset.h>
60 #include <sys/dsl_prop.h>
61 #include <sys/sa_impl.h>
64 char *osd_obj_tag = "osd_object";
65 static int osd_object_sync_delay_us = -1;
67 static struct dt_object_operations osd_obj_ops;
68 static struct lu_object_operations osd_lu_obj_ops;
69 static struct dt_object_operations osd_obj_otable_it_ops;
72 osd_object_sa_fini(struct osd_object *obj)
75 sa_handle_destroy(obj->oo_sa_hdl);
76 obj->oo_sa_hdl = NULL;
81 osd_object_sa_init(struct osd_object *obj, struct osd_device *o)
85 LASSERT(obj->oo_sa_hdl == NULL);
86 LASSERT(obj->oo_dn != NULL);
88 rc = osd_sa_handle_get(obj);
92 /* Cache the xattr object id, valid for the life of the object */
93 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(o), &obj->oo_xattr, 8);
95 obj->oo_xattr = ZFS_NO_OBJECT;
98 osd_object_sa_fini(obj);
105 * Add object to list of dirty objects in tx handle.
107 void osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
109 if (!list_empty(&obj->oo_sa_linkage))
112 write_lock(&obj->oo_attr_lock);
113 if (likely(list_empty(&obj->oo_sa_linkage)))
114 list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
115 write_unlock(&obj->oo_attr_lock);
119 * Release spill block dbuf hold for all dirty SAs.
121 void osd_object_sa_dirty_rele(const struct lu_env *env, struct osd_thandle *oh)
123 struct osd_object *obj;
125 while (!list_empty(&oh->ot_sa_list)) {
126 obj = list_entry(oh->ot_sa_list.next,
127 struct osd_object, oo_sa_linkage);
128 write_lock(&obj->oo_attr_lock);
129 list_del_init(&obj->oo_sa_linkage);
130 write_unlock(&obj->oo_attr_lock);
131 if (obj->oo_late_xattr) {
133 * take oo_guard to protect oo_sa_xattr buffer
134 * from concurrent update by osd_xattr_set()
136 LASSERT(oh->ot_assigned != 0);
137 down_write(&obj->oo_guard);
138 if (obj->oo_late_attr_set)
139 __osd_sa_attr_init(env, obj, oh);
140 else if (obj->oo_late_xattr)
141 __osd_sa_xattr_update(env, obj, oh);
142 up_write(&obj->oo_guard);
144 sa_spill_rele(obj->oo_sa_hdl);
149 * Update the SA and add the object to the dirty list.
151 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
152 void *buf, uint32_t buflen, struct osd_thandle *oh)
156 LASSERT(obj->oo_sa_hdl != NULL);
157 LASSERT(oh->ot_tx != NULL);
159 rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
160 osd_object_sa_dirty_add(obj, oh);
166 * Bulk update the SA and add the object to the dirty list.
169 osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
170 int count, struct osd_thandle *oh)
174 LASSERT(obj->oo_sa_hdl != NULL);
175 LASSERT(oh->ot_tx != NULL);
177 rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
178 osd_object_sa_dirty_add(obj, oh);
184 * Retrieve the attributes of a DMU object
186 static int __osd_object_attr_get(const struct lu_env *env, struct osd_device *o,
187 struct osd_object *obj, struct lu_attr *la)
189 struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
190 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
195 LASSERT(obj->oo_dn != NULL);
197 la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_BTIME | LA_MODE |
198 LA_TYPE | LA_SIZE | LA_UID | LA_GID | LA_FLAGS |
201 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(o), NULL, osa->atime, 16);
202 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(o), NULL, osa->mtime, 16);
203 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(o), NULL, osa->ctime, 16);
204 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(o), NULL, osa->btime, 16);
205 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(o), NULL, &osa->mode, 8);
206 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(o), NULL, &osa->size, 8);
207 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(o), NULL, &osa->nlink, 8);
208 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(o), NULL, &osa->uid, 8);
209 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(o), NULL, &osa->gid, 8);
210 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(o), NULL, &osa->flags, 8);
211 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
213 rc = -sa_bulk_lookup(obj->oo_sa_hdl, bulk, cnt);
217 #ifdef ZFS_PROJINHERIT
218 if (o->od_projectused_dn && osa->flags & ZFS_PROJID) {
219 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_PROJID(o),
224 la->la_projid = osa->projid;
225 la->la_valid |= LA_PROJID;
226 obj->oo_with_projid = 1;
228 la->la_projid = ZFS_DEFAULT_PROJID;
229 la->la_valid &= ~LA_PROJID;
233 la->la_valid &= ~LA_PROJID;
236 la->la_atime = osa->atime[0];
237 la->la_mtime = osa->mtime[0];
238 la->la_ctime = osa->ctime[0];
239 la->la_btime = osa->btime[0];
240 la->la_mode = osa->mode;
241 la->la_uid = osa->uid;
242 la->la_gid = osa->gid;
243 la->la_nlink = osa->nlink;
244 la->la_flags = attrs_zfs2fs(osa->flags);
245 la->la_size = osa->size;
247 /* Try to get extra flag from LMA. Right now, only LMAI_ORPHAN
248 * flags is stored in LMA, and it is only for orphan directory */
249 if (S_ISDIR(la->la_mode) && dt_object_exists(&obj->oo_dt)) {
250 struct osd_thread_info *info = osd_oti_get(env);
251 struct lustre_mdt_attrs *lma;
254 lma = (struct lustre_mdt_attrs *)info->oti_buf;
256 buf.lb_len = sizeof(info->oti_buf);
257 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
260 lma->lma_incompat = le32_to_cpu(lma->lma_incompat);
262 lma_to_lustre_flags(lma->lma_incompat);
264 } else if (rc == -ENODATA) {
269 if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
270 rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_RDEV(o), &osa->rdev, 8);
273 la->la_rdev = osa->rdev;
274 la->la_valid |= LA_RDEV;
281 int __osd_obj2dnode(objset_t *os, uint64_t oid, dnode_t **dnp)
287 rc = -dmu_bonus_hold(os, oid, osd_obj_tag, &db);
291 dbi = (dmu_buf_impl_t *)db;
293 *dnp = DB_DNODE(dbi);
295 LASSERT(*dnp != NULL);
301 * Concurrency: no concurrent access is possible that early in object
304 struct lu_object *osd_object_alloc(const struct lu_env *env,
305 const struct lu_object_header *hdr,
308 struct osd_object *mo;
310 OBD_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
313 struct lu_object_header *h;
314 struct osd_device *o = osd_dev(d);
316 l = &mo->oo_dt.do_lu;
317 if (unlikely(o->od_in_init)) {
324 lu_object_header_init(h);
325 lu_object_init(l, h, d);
326 lu_object_add_top(h, l);
329 dt_object_init(&mo->oo_dt, NULL, d);
330 mo->oo_header = NULL;
333 mo->oo_dt.do_ops = &osd_obj_ops;
334 l->lo_ops = &osd_lu_obj_ops;
335 INIT_LIST_HEAD(&mo->oo_sa_linkage);
336 INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
337 init_rwsem(&mo->oo_sem);
338 init_rwsem(&mo->oo_guard);
339 rwlock_init(&mo->oo_attr_lock);
340 mo->oo_destroy = OSD_DESTROY_NONE;
347 static void osd_obj_set_blksize(const struct lu_env *env,
348 struct osd_device *osd, struct osd_object *obj)
350 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
352 dnode_t *dn = obj->oo_dn;
357 LASSERT(!osd_oti_get(env)->oti_in_trans);
359 tx = dmu_tx_create(osd->od_os);
361 CERROR("%s: fail to create tx to set blksize for "DFID"\n",
362 osd->od_svname, PFID(fid));
366 dmu_tx_hold_bonus(tx, dn->dn_object);
367 rc = -dmu_tx_assign(tx, TXG_WAIT);
370 CERROR("%s: fail to assign tx to set blksize for "DFID
371 ": rc = %d\n", osd->od_svname, PFID(fid), rc);
375 down_write(&obj->oo_guard);
376 if (unlikely((1 << dn->dn_datablkshift) >= PAGE_SIZE))
379 blksz = dn->dn_datablksz;
380 if (!is_power_of_2(blksz))
381 blksz = size_roundup_power2(blksz);
383 if (blksz > osd->od_max_blksz)
384 blksz = osd->od_max_blksz;
385 else if (blksz < PAGE_SIZE)
387 rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object, blksz, 0, tx);
392 up_write(&obj->oo_guard);
395 if (unlikely(obj->oo_dn->dn_maxblkid > 0))
398 CERROR("%s: fail to set blksize for "DFID": rc = %d\n",
399 osd->od_svname, PFID(fid), rc);
402 CDEBUG(D_INODE, "%s: set blksize as %u for "DFID"\n",
403 osd->od_svname, blksz, PFID(fid));
408 * Concurrency: shouldn't matter.
410 static int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
412 struct osd_device *osd = osd_obj2dev(obj);
413 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
419 rc = osd_object_sa_init(obj, osd);
423 /* cache attrs in object */
424 rc = __osd_object_attr_get(env, osd, obj, &obj->oo_attr);
428 if (likely(!fid_is_acct(fid))) {
429 /* no body operations for accounting objects */
430 obj->oo_dt.do_body_ops = &osd_body_ops;
432 if (S_ISREG(obj->oo_attr.la_mode) &&
433 obj->oo_dn->dn_maxblkid == 0 &&
434 (1 << obj->oo_dn->dn_datablkshift) < PAGE_SIZE &&
435 (fid_is_idif(fid) || fid_is_norm(fid) ||
437 osd->od_is_ost && !osd->od_dt_dev.dd_rdonly)
438 osd_obj_set_blksize(env, osd, obj);
442 * initialize object before marking it existing
444 obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
447 obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
452 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
454 struct osd_thread_info *info = osd_oti_get(env);
457 struct lustre_mdt_attrs *lma;
458 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
461 BUILD_BUG_ON(sizeof(info->oti_buf) < sizeof(*lma));
462 lma = (struct lustre_mdt_attrs *)info->oti_buf;
464 buf.lb_len = sizeof(info->oti_buf);
466 rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
469 lustre_lma_swab(lma);
470 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
471 CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
472 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
473 "fid = "DFID"\n", osd_obj2dev(obj)->od_svname,
474 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
477 } else if (unlikely(!lu_fid_eq(rfid, &lma->lma_self_fid))) {
478 CERROR("%s: FID-in-LMA "DFID" does not match the "
479 "object self-fid "DFID"\n",
480 osd_obj2dev(obj)->od_svname,
481 PFID(&lma->lma_self_fid), PFID(rfid));
484 struct osd_device *osd = osd_obj2dev(obj);
486 if (lma->lma_compat & LMAC_STRIPE_INFO &&
488 obj->oo_pfid_in_lma = 1;
489 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
490 osd->od_remote_parent_dir != ZFS_NO_OBJECT)
491 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
493 } else if (rc == -ENODATA) {
494 /* haven't initialize LMA xattr */
502 * Helper function to retrieve DMU object id from fid for accounting object
504 static dnode_t *osd_quota_fid2dmu(const struct osd_device *osd,
505 const struct lu_fid *fid)
509 LASSERT(fid_is_acct(fid));
511 switch (fid_oid(fid)) {
513 dn = osd->od_userused_dn;
516 dn = osd->od_groupused_dn;
518 #ifdef ZFS_PROJINHERIT
519 case ACCT_PROJECT_OID:
520 dn = osd->od_projectused_dn;
531 * Concurrency: no concurrent access is possible that early in object
534 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
535 const struct lu_object_conf *conf)
537 struct osd_object *obj = osd_obj(l);
538 struct osd_device *osd = osd_obj2dev(obj);
539 const struct lu_fid *fid = lu_object_fid(l);
540 struct lustre_scrub *scrub = &osd->od_scrub;
541 struct osd_thread_info *info = osd_oti_get(env);
542 struct luz_direntry *zde = &info->oti_zde;
543 struct osd_idmap_cache *idc;
544 char *name = info->oti_str;
551 LASSERT(osd_invariant(obj));
553 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
554 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
555 l->lo_header->loh_attr |= LOHA_EXISTS;
560 if (conf && conf->loc_flags & LOC_F_NEW)
563 if (unlikely(fid_is_acct(fid))) {
564 obj->oo_dn = osd_quota_fid2dmu(osd, fid);
566 obj->oo_dt.do_index_ops = &osd_acct_index_ops;
567 l->lo_header->loh_attr |= LOHA_EXISTS;
573 idc = osd_idc_find(env, osd, fid);
574 if (idc && !idc->oic_remote && idc->oic_dnode != ZFS_NO_OBJECT) {
575 oid = idc->oic_dnode;
580 if (!list_empty(&osd->od_scrub.os_inconsistent_items))
581 rc = osd_oii_lookup(osd, fid, &oid);
584 rc = osd_fid_lookup(env, osd, fid, &oid);
587 if (likely(!(fid_is_norm(fid) || fid_is_igif(fid)) ||
588 fid_is_on_ost(env, osd, fid) ||
589 !zfs_test_bit(osd_oi_fid2idx(osd, fid),
590 scrub->os_file.sf_oi_bitmap)))
601 LASSERT(obj->oo_dn == NULL);
603 rc = __osd_obj2dnode(osd->od_os, oid, &obj->oo_dn);
604 /* EEXIST will be returned if object is being deleted in ZFS */
609 CERROR("%s: lookup "DFID"/%#llx failed: rc = %d\n",
610 osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
614 rc = osd_object_init0(env, obj);
618 if (unlikely(obj->oo_header))
621 rc = osd_check_lma(env, obj);
622 if ((!rc && !remote) || (rc != -EREMCHG))
626 /* We still have chance to get the valid dnode: for the object that is
627 * referenced by remote name entry, the object on the local MDT will be
628 * linked under the dir /REMOTE_PARENT_DIR with its FID string as name.
630 * During the OI scrub, if we cannot find the OI mapping, we may still
631 * have change to map the FID to local OID via lookup the dir
632 * /REMOTE_PARENT_DIR. */
633 if (!remote && !fid_is_on_ost(env, osd, fid)) {
634 osd_fid2str(name, fid, sizeof(info->oti_str));
635 rc = osd_zap_lookup(osd, osd->od_remote_parent_dir,
636 NULL, name, 8, 3, (void *)zde);
638 oid = zde->lzd_reg.zde_dnode;
639 osd_dnode_rele(obj->oo_dn);
646 /* The case someone triggered the OI scrub already. */
647 if (thread_is_running(&scrub->os_thread)) {
651 lu_object_set_agent_entry(l);
652 osd_oii_insert(env, osd, fid, oid, false);
660 /* The case NOT allow to trigger OI scrub automatically. */
661 if (osd->od_auto_scrub_interval == AS_NEVER)
664 /* It is me to trigger the OI scrub. */
665 rc1 = osd_scrub_start(env, osd, SS_CLEAR_DRYRUN |
666 SS_CLEAR_FAILOUT | SS_AUTO_FULL);
667 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the "DFID": rc = %d\n",
668 osd_name(osd), PFID(fid), rc1);
672 lu_object_set_agent_entry(l);
674 osd_oii_insert(env, osd, fid, oid, false);
689 * Concurrency: no concurrent access is possible that late in object
692 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
694 struct osd_object *obj = osd_obj(l);
695 struct lu_object_header *h = obj->oo_header;
697 LASSERT(osd_invariant(obj));
699 dt_object_fini(&obj->oo_dt);
700 /* obj doesn't contain an lu_object_header, so we don't need call_rcu */
701 OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
703 lu_object_header_fini(h);
704 OBD_FREE_PRE(h, sizeof(*h), "kfreed");
705 kfree_rcu(h, loh_rcu);
710 osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
714 LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
716 /* the object is supposed to be exclusively locked by
717 * the caller (osd_destroy()), while the transaction
718 * (oh) is per-thread and not shared */
719 if (likely(list_empty(&obj->oo_unlinked_linkage))) {
720 list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
727 /* Default to max data size covered by a level-1 indirect block */
728 static unsigned long osd_sync_destroy_max_size =
729 1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
730 module_param(osd_sync_destroy_max_size, ulong, 0444);
731 MODULE_PARM_DESC(osd_sync_destroy_max_size, "Maximum object size to use synchronous destroy.");
734 osd_object_set_destroy_type(struct osd_object *obj)
737 * Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
738 * only once and use it consistently thereafter.
740 down_write(&obj->oo_guard);
741 if (obj->oo_destroy == OSD_DESTROY_NONE) {
742 if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
743 obj->oo_destroy = OSD_DESTROY_SYNC;
744 else /* Larger objects are destroyed asynchronously */
745 obj->oo_destroy = OSD_DESTROY_ASYNC;
747 up_write(&obj->oo_guard);
750 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
753 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
754 struct osd_object *obj = osd_dt_obj(dt);
755 struct osd_device *osd = osd_obj2dev(obj);
756 struct osd_thandle *oh;
763 LASSERT(dt_object_exists(dt));
765 oh = container_of(th, struct osd_thandle, ot_super);
766 LASSERT(oh->ot_tx != NULL);
768 dmu_tx_mark_netfree(oh->ot_tx);
770 /* declare that we'll remove object from fid-dnode mapping */
771 zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
772 osd_tx_hold_zap(oh->ot_tx, zapid, dn, FALSE, NULL);
774 osd_declare_xattrs_destroy(env, obj, oh);
777 rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
778 obj->oo_attr.la_gid, obj->oo_attr.la_projid,
779 -1, oh, NULL, OSD_QID_INODE);
783 /* data to be truncated */
784 rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
785 obj->oo_attr.la_gid, obj->oo_attr.la_projid,
786 0, oh, NULL, OSD_QID_BLK);
790 osd_object_set_destroy_type(obj);
791 if (obj->oo_destroy == OSD_DESTROY_SYNC)
792 dmu_tx_hold_free(oh->ot_tx, obj->oo_dn->dn_object,
795 osd_tx_hold_zap(oh->ot_tx, osd->od_unlinked->dn_object,
796 osd->od_unlinked, TRUE, NULL);
798 /* remove agent entry (if have) from remote parent */
799 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
800 osd_tx_hold_zap(oh->ot_tx, osd->od_remote_parent_dir,
803 /* will help to find FID->ino when this object is being
804 * added to PENDING/ */
805 osd_idc_find_and_init(env, osd, obj);
810 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
813 struct osd_thread_info *info = osd_oti_get(env);
814 char *buf = info->oti_str;
815 struct osd_object *obj = osd_dt_obj(dt);
816 struct osd_device *osd = osd_obj2dev(obj);
817 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
818 struct osd_thandle *oh;
824 down_write(&obj->oo_guard);
826 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
827 GOTO(out, rc = -ENOENT);
829 LASSERT(obj->oo_dn != NULL);
831 oh = container_of(th, struct osd_thandle, ot_super);
833 LASSERT(oh->ot_tx != NULL);
835 /* remove obj ref from index dir (it depends) */
836 zapid = osd_get_name_n_idx(env, osd, fid, buf,
837 sizeof(info->oti_str), &zdn);
838 rc = osd_xattrs_destroy(env, obj, oh);
840 CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
841 osd->od_svname, buf, rc);
845 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
846 rc = osd_delete_from_remote_parent(env, osd, obj, oh, true);
851 oid = obj->oo_dn->dn_object;
852 if (unlikely(obj->oo_destroy == OSD_DESTROY_NONE)) {
853 /* this may happen if the destroy wasn't declared
854 * e.g. when the object is created and then destroyed
855 * in the same transaction - we don't need additional
856 * space for destroy specifically */
857 LASSERT(obj->oo_attr.la_size <= osd_sync_destroy_max_size);
858 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
860 CERROR("%s: failed to free %s %llu: rc = %d\n",
861 osd->od_svname, buf, oid, rc);
862 } else if (obj->oo_destroy == OSD_DESTROY_SYNC) {
863 rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
865 CERROR("%s: failed to free %s %llu: rc = %d\n",
866 osd->od_svname, buf, oid, rc);
867 } else { /* asynchronous destroy */
868 char *key = info->oti_key;
870 rc = osd_object_unlinked_add(obj, oh);
874 snprintf(key, sizeof(info->oti_key), "%llx", oid);
875 rc = osd_zap_add(osd, osd->od_unlinked->dn_object,
876 osd->od_unlinked, key, 8, 1, &oid, oh->ot_tx);
878 CERROR("%s: zap_add_int() failed %s %llu: rc = %d\n",
879 osd->od_svname, buf, oid, rc);
882 /* Remove the OI mapping after the destroy to handle the race with
883 * OI scrub that may insert missed OI mapping during the interval. */
884 rc = osd_zap_remove(osd, zapid, zdn, buf, oh->ot_tx);
885 if (unlikely(rc == -ENOENT))
888 CERROR("%s: zap_remove(%s) failed: rc = %d\n",
889 osd->od_svname, buf, rc);
894 /* not needed in the cache anymore */
895 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
897 obj->oo_destroyed = 1;
898 up_write(&obj->oo_guard);
902 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
904 struct osd_object *obj = osd_obj(l);
905 const struct lu_fid *fid = lu_object_fid(l);
908 if (likely(!fid_is_acct(fid))) {
909 osd_object_sa_fini(obj);
910 if (obj->oo_sa_xattr) {
911 nvlist_free(obj->oo_sa_xattr);
912 obj->oo_sa_xattr = NULL;
914 osd_dnode_rele(obj->oo_dn);
915 list_del(&obj->oo_sa_linkage);
922 * Concurrency: ->loo_object_release() is called under site spin-lock.
924 static void osd_object_release(const struct lu_env *env,
930 * Concurrency: shouldn't matter.
932 static int osd_object_print(const struct lu_env *env, void *cookie,
933 lu_printer_t p, const struct lu_object *l)
935 struct osd_object *o = osd_obj(l);
937 return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
940 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
943 struct osd_object *obj = osd_dt_obj(dt);
945 LASSERT(osd_invariant(obj));
947 down_read_nested(&obj->oo_sem, role);
950 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
953 struct osd_object *obj = osd_dt_obj(dt);
955 LASSERT(osd_invariant(obj));
957 down_write_nested(&obj->oo_sem, role);
960 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
962 struct osd_object *obj = osd_dt_obj(dt);
964 LASSERT(osd_invariant(obj));
965 up_read(&obj->oo_sem);
968 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
970 struct osd_object *obj = osd_dt_obj(dt);
972 LASSERT(osd_invariant(obj));
973 up_write(&obj->oo_sem);
976 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
978 struct osd_object *obj = osd_dt_obj(dt);
981 LASSERT(osd_invariant(obj));
983 if (down_write_trylock(&obj->oo_sem)) {
985 up_write(&obj->oo_sem);
990 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
991 struct lu_attr *attr)
993 struct osd_object *obj = osd_dt_obj(dt);
998 down_read(&obj->oo_guard);
1000 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1001 GOTO(out, rc = -ENOENT);
1003 if (unlikely(fid_is_acct(lu_object_fid(&dt->do_lu))))
1006 LASSERT(osd_invariant(obj));
1007 LASSERT(obj->oo_dn);
1009 read_lock(&obj->oo_attr_lock);
1010 *attr = obj->oo_attr;
1011 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
1012 attr->la_valid |= LA_FLAGS;
1013 attr->la_flags |= LUSTRE_ORPHAN_FL;
1015 read_unlock(&obj->oo_attr_lock);
1016 if (attr->la_valid & LA_FLAGS && attr->la_flags & LUSTRE_ORPHAN_FL)
1017 CDEBUG(D_INFO, "%s: set orphan flag on "DFID" (%llx/%x)\n",
1018 osd_obj2dev(obj)->od_svname,
1019 PFID(lu_object_fid(&dt->do_lu)),
1020 attr->la_valid, obj->oo_lma_flags);
1022 /* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
1023 * from within sa_object_size() can block on a mutex, so
1024 * we can't call sa_object_size() holding rwlock */
1025 sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
1026 /* we do not control size of indices, so always calculate
1027 * it from number of blocks reported by DMU */
1028 if (S_ISDIR(attr->la_mode))
1029 attr->la_size = 512 * blocks;
1030 /* Block size may be not set; suggest maximal I/O transfers. */
1032 blksize = osd_spa_maxblocksize(
1033 dmu_objset_spa(osd_obj2dev(obj)->od_os));
1035 attr->la_blksize = blksize;
1036 attr->la_blocks = blocks;
1037 attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
1040 up_read(&obj->oo_guard);
1044 /* Simple wrapper on top of qsd API which implement quota transfer for osd
1045 * setattr needs. As a reminder, only the root user can change ownership of
1046 * a file, that's why EDQUOT & EINPROGRESS errors are discarded */
1047 static inline int qsd_transfer(const struct lu_env *env,
1048 struct qsd_instance *qsd,
1049 struct lquota_trans *trans, int qtype,
1050 __u64 orig_id, __u64 new_id, __u64 bspace,
1051 struct lquota_id_info *qi, bool ignore_edquot)
1055 if (unlikely(qsd == NULL))
1058 LASSERT(qtype >= 0 && qtype < LL_MAXQUOTAS);
1059 qi->lqi_type = qtype;
1061 /* inode accounting */
1062 qi->lqi_is_blk = false;
1064 /* one more inode for the new owner ... */
1065 qi->lqi_id.qid_uid = new_id;
1067 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
1068 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
1073 /* and one less inode for the current id */
1074 qi->lqi_id.qid_uid = orig_id;;
1076 /* can't get EDQUOT when reducing usage */
1077 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
1078 if (rc == -EINPROGRESS)
1083 /* block accounting */
1084 qi->lqi_is_blk = true;
1086 /* more blocks for the new owner ... */
1087 qi->lqi_id.qid_uid = new_id;
1088 qi->lqi_space = bspace;
1089 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
1090 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
1095 /* and finally less blocks for the current owner */
1096 qi->lqi_id.qid_uid = orig_id;
1097 qi->lqi_space = -bspace;
1098 rc = qsd_op_begin(env, qsd, trans, qi, NULL);
1099 /* can't get EDQUOT when reducing usage */
1100 if (rc == -EINPROGRESS)
1105 static int osd_declare_attr_set(const struct lu_env *env,
1106 struct dt_object *dt,
1107 const struct lu_attr *attr,
1108 struct thandle *handle)
1110 struct osd_thread_info *info = osd_oti_get(env);
1111 struct osd_object *obj = osd_dt_obj(dt);
1112 struct osd_device *osd = osd_obj2dev(obj);
1114 struct osd_thandle *oh;
1122 LASSERT(handle != NULL);
1123 LASSERT(osd_invariant(obj));
1125 oh = container_of(handle, struct osd_thandle, ot_super);
1127 down_read(&obj->oo_guard);
1128 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1131 LASSERT(obj->oo_sa_hdl != NULL);
1132 LASSERT(oh->ot_tx != NULL);
1133 /* regular attributes are part of the bonus buffer */
1134 /* let's check whether this object is already part of
1137 for (txh = list_head(&oh->ot_tx->tx_holds); txh;
1138 txh = list_next(&oh->ot_tx->tx_holds, txh)) {
1139 if (txh->txh_dnode == NULL)
1141 if (txh->txh_dnode->dn_object != obj->oo_dn->dn_object)
1143 /* this object is part of the transaction already
1144 * we don't need to declare bonus again */
1149 dmu_tx_hold_bonus(oh->ot_tx, obj->oo_dn->dn_object);
1150 if (oh->ot_tx->tx_err != 0)
1151 GOTO(out, rc = -oh->ot_tx->tx_err);
1153 if (attr && attr->la_valid & LA_FLAGS) {
1154 /* LMA is usually a part of bonus, no need to declare
1158 if (attr && (attr->la_valid & (LA_UID | LA_GID | LA_PROJID))) {
1159 sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
1160 bspace = toqb(bspace * 512);
1163 "%s: enforce quota on UID %u, GID %u, the quota space is %lld (%u)\n",
1165 attr->la_uid, attr->la_gid, bspace, blksize);
1168 if (attr && attr->la_valid & LA_UID) {
1169 /* quota enforcement for user */
1170 if (attr->la_uid != obj->oo_attr.la_uid) {
1171 rc = qsd_transfer(env, osd_def_qsd(osd),
1172 &oh->ot_quota_trans, USRQUOTA,
1173 obj->oo_attr.la_uid, attr->la_uid,
1174 bspace, &info->oti_qi, true);
1179 if (attr && attr->la_valid & LA_GID) {
1180 /* quota enforcement for group */
1181 if (attr->la_gid != obj->oo_attr.la_gid) {
1182 rc = qsd_transfer(env, osd_def_qsd(osd),
1183 &oh->ot_quota_trans, GRPQUOTA,
1184 obj->oo_attr.la_gid, attr->la_gid,
1185 bspace, &info->oti_qi,
1187 LUSTRE_SET_SYNC_FL));
1192 #ifdef ZFS_PROJINHERIT
1193 if (attr && attr->la_valid & LA_PROJID) {
1194 /* quota enforcement for project */
1195 if (attr->la_projid != obj->oo_attr.la_projid) {
1196 if (!osd->od_projectused_dn)
1197 GOTO(out, rc = -EOPNOTSUPP);
1199 /* Usually, if project quota is upgradable for the
1200 * device, then the upgrade will be done before or when
1201 * mount the device. So when we come here, this project
1202 * should have project ID attribute already (that is
1203 * zero by default). Otherwise, there was something
1204 * wrong during the former upgrade, let's return failure
1207 * Please note that, different from other attributes,
1208 * you can NOT simply set the project ID attribute under
1209 * such case, because adding (NOT change) project ID
1210 * attribute needs to change the object's attribute
1211 * layout to match zfs backend quota accounting
1213 if (unlikely(!obj->oo_with_projid))
1214 GOTO(out, rc = -ENXIO);
1216 rc = qsd_transfer(env, osd_def_qsd(osd),
1217 &oh->ot_quota_trans, PRJQUOTA,
1218 obj->oo_attr.la_projid,
1219 attr->la_projid, bspace,
1220 &info->oti_qi, true);
1227 up_read(&obj->oo_guard);
1232 * Set the attributes of an object
1234 * The transaction passed to this routine must have
1235 * dmu_tx_hold_bonus(tx, oid) called and then assigned
1236 * to a transaction group.
1238 static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
1239 const struct lu_attr *la, struct thandle *handle)
1241 struct osd_thread_info *info = osd_oti_get(env);
1242 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
1243 struct osd_object *obj = osd_dt_obj(dt);
1244 struct osd_device *osd = osd_obj2dev(obj);
1245 struct osd_thandle *oh;
1246 struct osa_attr *osa = &info->oti_osa;
1247 __u64 valid = la->la_valid;
1253 down_read(&obj->oo_guard);
1254 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
1255 GOTO(out, rc = -ENOENT);
1257 LASSERT(handle != NULL);
1258 LASSERT(osd_invariant(obj));
1259 LASSERT(obj->oo_sa_hdl);
1261 oh = container_of(handle, struct osd_thandle, ot_super);
1262 /* Assert that the transaction has been assigned to a
1263 transaction group. */
1264 LASSERT(oh->ot_tx->tx_txg != 0);
1266 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) && !osd->od_is_ost) {
1267 struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
1268 char *buf = info->oti_str;
1269 dnode_t *zdn = NULL;
1272 zapid = osd_get_name_n_idx(env, osd, lu_object_fid(&dt->do_lu),
1273 buf, sizeof(info->oti_str), &zdn);
1274 rc = osd_zap_lookup(osd, zapid, zdn, buf, 8,
1275 sizeof(*zde) / 8, zde);
1277 zde->zde_dnode -= 1;
1278 rc = -zap_update(osd->od_os, zapid, buf, 8,
1279 sizeof(*zde) / 8, zde, oh->ot_tx);
1286 /* Only allow set size for regular file */
1287 if (!S_ISREG(dt->do_lu.lo_header->loh_attr))
1288 valid &= ~(LA_SIZE | LA_BLOCKS);
1290 if (valid & LA_CTIME && la->la_ctime == obj->oo_attr.la_ctime)
1293 if (valid & LA_MTIME && la->la_mtime == obj->oo_attr.la_mtime)
1296 if (valid & LA_ATIME && la->la_atime == obj->oo_attr.la_atime)
1302 if (valid & LA_FLAGS) {
1303 struct lustre_mdt_attrs *lma;
1307 if (la->la_flags & LUSTRE_LMA_FL_MASKS) {
1308 LASSERT(!obj->oo_pfid_in_lma);
1309 BUILD_BUG_ON(sizeof(info->oti_buf) < sizeof(*lma));
1310 lma = (struct lustre_mdt_attrs *)&info->oti_buf;
1312 buf.lb_len = sizeof(info->oti_buf);
1314 /* Please do NOT call osd_xattr_get() directly, that
1315 * will cause recursive down_read() on oo_guard. */
1316 rc = osd_xattr_get_internal(env, obj, &buf,
1317 XATTR_NAME_LMA, &size);
1318 if (!rc && unlikely(size < sizeof(*lma))) {
1322 le32_to_cpu(lma->lma_incompat);
1323 lma->lma_incompat |=
1324 lustre_to_lma_flags(la->la_flags);
1326 cpu_to_le32(lma->lma_incompat);
1328 buf.lb_len = sizeof(*lma);
1329 rc = osd_xattr_set_internal(env, obj, &buf,
1335 CWARN("%s: failed to set LMA flags: rc = %d\n",
1336 osd->od_svname, rc);
1342 write_lock(&obj->oo_attr_lock);
1345 if (valid & LA_PROJID) {
1346 #ifdef ZFS_PROJINHERIT
1347 if (osd->od_projectused_dn) {
1348 LASSERT(obj->oo_with_projid);
1350 osa->projid = obj->oo_attr.la_projid = la->la_projid;
1351 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PROJID(osd), NULL,
1355 valid &= ~LA_PROJID;
1358 if (valid & LA_ATIME) {
1359 osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
1360 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL,
1363 if (valid & LA_MTIME) {
1364 osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
1365 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL,
1368 if (valid & LA_CTIME) {
1369 osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
1370 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL,
1373 if (valid & LA_MODE) {
1374 /* mode is stored along with type, so read it first */
1375 obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
1376 (la->la_mode & ~S_IFMT);
1377 osa->mode = obj->oo_attr.la_mode;
1378 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL,
1381 if (valid & LA_SIZE) {
1382 osa->size = obj->oo_attr.la_size = la->la_size;
1383 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL,
1386 if (valid & LA_NLINK) {
1387 osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
1388 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL,
1391 if (valid & LA_RDEV) {
1392 osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
1393 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL,
1396 if (valid & LA_FLAGS) {
1397 osa->flags = attrs_fs2zfs(la->la_flags);
1398 /* many flags are not supported by zfs, so ensure a good cached
1400 obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
1401 #ifdef ZFS_PROJINHERIT
1402 if (obj->oo_with_projid && osd->od_projectused_dn)
1403 osa->flags |= ZFS_PROJID;
1405 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL,
1408 if (valid & LA_UID) {
1409 osa->uid = obj->oo_attr.la_uid = la->la_uid;
1410 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL,
1413 if (valid & LA_GID) {
1414 osa->gid = obj->oo_attr.la_gid = la->la_gid;
1415 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL,
1418 obj->oo_attr.la_valid |= valid;
1419 write_unlock(&obj->oo_attr_lock);
1421 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1422 rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
1425 up_read(&obj->oo_guard);
1432 * XXX temporary solution.
1435 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1436 struct dt_object *parent, struct dt_object *child,
1441 ah->dah_parent = parent;
1442 ah->dah_mode = child_mode;
1444 if (parent != NULL && !dt_object_remote(parent)) {
1445 /* will help to find FID->ino at dt_insert("..") */
1446 struct osd_object *pobj = osd_dt_obj(parent);
1448 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
1452 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
1453 struct lu_attr *attr,
1454 struct dt_allocation_hint *hint,
1455 struct dt_object_format *dof,
1456 struct thandle *handle)
1458 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1459 struct osd_object *obj = osd_dt_obj(dt);
1460 struct osd_device *osd = osd_obj2dev(obj);
1461 struct osd_thandle *oh;
1469 switch (dof->dof_type) {
1473 if (obj->oo_dt.do_body_ops == NULL)
1474 obj->oo_dt.do_body_ops = &osd_body_ops;
1480 LASSERT(handle != NULL);
1481 oh = container_of(handle, struct osd_thandle, ot_super);
1482 LASSERT(oh->ot_tx != NULL);
1484 /* this is the minimum set of EAs on every Lustre object */
1485 obj->oo_ea_in_bonus = OSD_BASE_EA_IN_BONUS;
1486 /* reserve 32 bytes for extra stuff like ACLs */
1487 dnode_size = size_roundup_power2(obj->oo_ea_in_bonus + 32);
1489 switch (dof->dof_type) {
1491 dt->do_index_ops = &osd_dir_ops;
1494 /* for zap create */
1495 dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, FALSE, NULL);
1496 dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1501 /* first, we'll create new object */
1502 dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
1510 /* and we'll add it to some mapping */
1511 zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
1512 osd_tx_hold_zap(oh->ot_tx, zapid, dn, TRUE, NULL);
1514 /* will help to find FID->ino mapping at dt_insert() */
1515 osd_idc_find_and_init(env, osd, obj);
1517 rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid,
1518 attr->la_projid, 1, oh, NULL, OSD_QID_INODE);
1523 int __osd_attr_init(const struct lu_env *env, struct osd_device *osd,
1524 struct osd_object *obj, sa_handle_t *sa_hdl, dmu_tx_t *tx,
1525 struct lu_attr *la, uint64_t parent,
1528 sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
1529 struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
1531 inode_timespec_t now;
1534 char *dxattr = NULL;
1540 gen = dmu_tx_get_txg(tx);
1542 ZFS_TIME_ENCODE(&now, osa->btime);
1544 osa->atime[0] = la->la_atime;
1545 osa->ctime[0] = la->la_ctime;
1546 osa->mtime[0] = la->la_mtime;
1547 osa->mode = la->la_mode;
1548 osa->uid = la->la_uid;
1549 osa->gid = la->la_gid;
1550 osa->rdev = la->la_rdev;
1551 osa->nlink = la->la_nlink;
1552 if (la->la_valid & LA_FLAGS)
1553 osa->flags = attrs_fs2zfs(la->la_flags);
1556 osa->size = la->la_size;
1557 #ifdef ZFS_PROJINHERIT
1558 if (osd->od_projectused_dn) {
1559 if (la->la_valid & LA_PROJID)
1560 osa->projid = la->la_projid;
1562 osa->projid = ZFS_DEFAULT_PROJID;
1563 osa->flags |= ZFS_PROJID;
1565 obj->oo_with_projid = 1;
1567 osa->flags &= ~ZFS_PROJID;
1572 * we need to create all SA below upon object create.
1574 * XXX The attribute order matters since the accounting callback relies
1575 * on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
1576 * look up the UID/GID/PROJID attributes. Moreover, the callback does
1577 * not seem to support the spill block.
1578 * We define attributes in the same order as SA_*_OFFSET in order to
1579 * work around the problem. See ORI-610.
1582 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
1583 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
1584 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
1585 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
1586 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
1587 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL, &parent, 8);
1588 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
1589 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
1590 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
1591 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
1592 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, osa->btime, 16);
1593 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
1594 #ifdef ZFS_PROJINHERIT
1595 if (osd->od_projectused_dn)
1596 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PROJID(osd), NULL,
1599 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
1600 LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
1603 rc = -nvlist_size(xattr, &sa_size, NV_ENCODE_XDR);
1606 dxattr = osd_zio_buf_alloc(sa_size);
1609 rc = -nvlist_pack(xattr, &dxattr, &sa_size,
1610 NV_ENCODE_XDR, KM_SLEEP);
1613 SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_DXATTR(osd),
1614 NULL, dxattr, sa_size);
1617 rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
1619 osd_zio_buf_free(dxattr, sa_size);
1624 int osd_find_new_dnode(const struct lu_env *env, dmu_tx_t *tx,
1625 uint64_t oid, dnode_t **dnp)
1630 /* take dnode_t from tx to save on dnode#->dnode_t lookup */
1631 for (txh = list_tail(&tx->tx_holds); txh;
1632 txh = list_prev(&tx->tx_holds, txh)) {
1633 dnode_t *dn = txh->txh_dnode;
1638 if (dn->dn_object != oid)
1642 rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
1643 if (dn->dn_bonus == NULL)
1644 dbuf_create_bonus(dn);
1645 rw_exit(&dn->dn_struct_rwlock);
1649 LASSERT(dn->dn_handle);
1651 if (zfs_refcount_add(&db->db_holds, osd_obj_tag) == 1) {
1652 zfs_refcount_add(&dn->dn_holds, osd_obj_tag);
1653 atomic_inc_32(&dn->dn_dbufs_count);
1657 dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | DB_RF_NOPREFETCH);
1661 if (unlikely(*dnp == NULL))
1662 rc = __osd_obj2dnode(tx->tx_objset, oid, dnp);
1667 #ifdef HAVE_DMU_OBJECT_ALLOC_DNSIZE
1668 int osd_find_dnsize(struct osd_device *osd, int ea_in_bonus)
1672 if (osd->od_dnsize == ZFS_DNSIZE_AUTO) {
1673 dnsize = DNODE_MIN_SIZE;
1675 if (DN_BONUS_SIZE(dnsize) >= ea_in_bonus + 32)
1678 } while (dnsize < DNODE_MAX_SIZE);
1679 if (dnsize > DNODE_MAX_SIZE)
1680 dnsize = DNODE_MAX_SIZE;
1681 } else if (osd->od_dnsize == ZFS_DNSIZE_1K) {
1683 } else if (osd->od_dnsize == ZFS_DNSIZE_2K) {
1685 } else if (osd->od_dnsize == ZFS_DNSIZE_4K) {
1687 } else if (osd->od_dnsize == ZFS_DNSIZE_8K) {
1689 } else if (osd->od_dnsize == ZFS_DNSIZE_16K) {
1692 dnsize = DNODE_MIN_SIZE;
1699 * The transaction passed to this routine must have
1700 * dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
1701 * to a transaction group.
1703 int __osd_object_create(const struct lu_env *env, struct osd_device *osd,
1704 struct osd_object *obj, const struct lu_fid *fid,
1705 dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la)
1707 dmu_object_type_t type = DMU_OT_PLAIN_FILE_CONTENTS;
1711 /* Use DMU_OTN_UINT8_METADATA for local objects so their data blocks
1712 * would get an additional ditto copy */
1713 if (unlikely(S_ISREG(la->la_mode) &&
1714 fid_seq_is_local_file(fid_seq(fid))))
1715 type = DMU_OTN_UINT8_METADATA;
1717 /* Create a new DMU object using the default dnode size. */
1719 size = obj->oo_ea_in_bonus;
1721 size = OSD_BASE_EA_IN_BONUS;
1722 oid = osd_dmu_object_alloc(osd->od_os, type, 0,
1723 osd_find_dnsize(osd, size), tx);
1725 LASSERT(la->la_valid & LA_MODE);
1729 return osd_find_new_dnode(env, tx, oid, dnp);
1733 * The transaction passed to this routine must have
1734 * dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
1735 * to a transaction group.
1737 * Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
1738 * This is fine for directories today, because storing the FID in the dirent
1739 * will also require a FAT ZAP. If there is a new type of micro ZAP created
1740 * then we might need to re-evaluate the use of this flag and instead do
1741 * a conversion from the different internal ZAP hash formats being used. */
1742 int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
1743 dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la,
1744 unsigned dnsize, zap_flags_t flags)
1748 /* Assert that the transaction has been assigned to a
1749 transaction group. */
1750 LASSERT(tx->tx_txg != 0);
1753 oid = osd_zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
1754 DMU_OT_DIRECTORY_CONTENTS,
1755 14, /* == ZFS fzap_default_blockshift */
1756 DN_MAX_INDBLKSHIFT, /* indirect blockshift */
1762 return osd_find_new_dnode(env, tx, oid, dnp);
1765 static dnode_t *osd_mkidx(const struct lu_env *env, struct osd_object *obj,
1766 struct lu_attr *la, struct osd_thandle *oh)
1768 struct osd_device *osd = osd_obj2dev(obj);
1772 /* Index file should be created as regular file in order not to confuse
1773 * ZPL which could interpret them as directory.
1774 * We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
1776 LASSERT(S_ISREG(la->la_mode));
1777 rc = __osd_zap_create(env, osd, &dn, oh->ot_tx, la,
1778 osd_find_dnsize(osd, obj->oo_ea_in_bonus), ZAP_FLAG_UINT64_KEY);
1784 static dnode_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
1785 struct lu_attr *la, struct osd_thandle *oh)
1787 struct osd_device *osd = osd_obj2dev(obj);
1791 LASSERT(S_ISDIR(la->la_mode));
1792 rc = __osd_zap_create(env, osd, &dn, oh->ot_tx, la,
1793 osd_find_dnsize(osd, obj->oo_ea_in_bonus), 0);
1799 static dnode_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
1800 struct lu_attr *la, struct osd_thandle *oh)
1802 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
1803 struct osd_device *osd = osd_obj2dev(obj);
1807 LASSERT(S_ISREG(la->la_mode));
1808 rc = __osd_object_create(env, osd, obj, fid, &dn, oh->ot_tx, la);
1812 if ((fid_is_idif(fid) || fid_is_norm(fid) || fid_is_echo(fid))) {
1813 /* The minimum block size must be at least page size otherwise
1814 * it will break the assumption in tgt_thread_big_cache where
1815 * the array size is PTLRPC_MAX_BRW_PAGES. It will also affect
1816 * RDMA due to subpage transfer size */
1817 rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
1818 PAGE_SIZE, 0, oh->ot_tx);
1820 CERROR("%s: can't change blocksize: %d\n",
1821 osd->od_svname, rc);
1824 } else if ((fid_is_llog(fid))) {
1825 rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
1826 LLOG_MIN_CHUNK_SIZE, 0, oh->ot_tx);
1828 CERROR("%s: can't change blocksize: %d\n",
1829 osd->od_svname, rc);
1837 static dnode_t *osd_mksym(const struct lu_env *env, struct osd_object *obj,
1838 struct lu_attr *la, struct osd_thandle *oh)
1843 LASSERT(S_ISLNK(la->la_mode));
1844 rc = __osd_object_create(env, osd_obj2dev(obj), obj,
1845 lu_object_fid(&obj->oo_dt.do_lu),
1846 &dn, oh->ot_tx, la);
1852 static dnode_t *osd_mknod(const struct lu_env *env, struct osd_object *obj,
1853 struct lu_attr *la, struct osd_thandle *oh)
1858 if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
1859 la->la_valid |= LA_RDEV;
1861 rc = __osd_object_create(env, osd_obj2dev(obj), obj,
1862 lu_object_fid(&obj->oo_dt.do_lu),
1863 &dn, oh->ot_tx, la);
1869 typedef dnode_t *(*osd_obj_type_f)(const struct lu_env *env,
1870 struct osd_object *obj,
1872 struct osd_thandle *oh);
1874 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1876 osd_obj_type_f result;
1902 * Concurrency: @dt is write locked.
1904 static int osd_create(const struct lu_env *env, struct dt_object *dt,
1905 struct lu_attr *attr, struct dt_allocation_hint *hint,
1906 struct dt_object_format *dof, struct thandle *th)
1908 struct osd_thread_info *info = osd_oti_get(env);
1909 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
1910 struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
1911 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1912 struct osd_object *obj = osd_dt_obj(dt);
1913 struct osd_device *osd = osd_obj2dev(obj);
1914 char *buf = info->oti_str;
1915 struct osd_thandle *oh;
1916 dnode_t *dn = NULL, *zdn = NULL;
1917 uint64_t zapid, parent = 0;
1923 LASSERT(!fid_is_acct(fid));
1925 /* concurrent create declarations should not see
1926 * the object inconsistent (db, attr, etc).
1927 * in regular cases acquisition should be cheap */
1928 down_write(&obj->oo_guard);
1930 if (unlikely(dt_object_exists(dt)))
1931 GOTO(out, rc = -EEXIST);
1933 LASSERT(osd_invariant(obj));
1934 LASSERT(dof != NULL);
1936 LASSERT(th != NULL);
1937 oh = container_of(th, struct osd_thandle, ot_super);
1939 LASSERT(obj->oo_dn == NULL);
1941 /* to follow ZFS on-disk format we need
1942 * to initialize parent dnode properly */
1943 if (hint != NULL && hint->dah_parent != NULL &&
1944 !dt_object_remote(hint->dah_parent))
1945 parent = osd_dt_obj(hint->dah_parent)->oo_dn->dn_object;
1947 /* we may fix some attributes, better do not change the source */
1948 obj->oo_attr = *attr;
1949 obj->oo_attr.la_valid |= LA_SIZE | LA_NLINK | LA_TYPE;
1951 #ifdef ZFS_PROJINHERIT
1952 if (osd->od_projectused_dn) {
1953 if (!(obj->oo_attr.la_valid & LA_PROJID))
1954 obj->oo_attr.la_projid = ZFS_DEFAULT_PROJID;
1955 obj->oo_with_projid = 1;
1959 dn = osd_create_type_f(dof->dof_type)(env, obj, &obj->oo_attr, oh);
1967 zde->zde_dnode = dn->dn_object;
1968 zde->zde_type = IFTODT(attr->la_mode & S_IFMT);
1970 zapid = osd_get_name_n_idx(env, osd, fid, buf,
1971 sizeof(info->oti_str), &zdn);
1972 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY) ||
1973 (osd->od_is_ost && OBD_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_NO_ENTRY)))
1976 if (osd->od_is_ost && OBD_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_INVALID_ENTRY))
1979 rc = osd_zap_add(osd, zapid, zdn, buf, 8, 1, zde, oh->ot_tx);
1985 /* Now add in all of the "SA" attributes */
1986 rc = osd_sa_handle_get(obj);
1990 rc = -nvlist_alloc(&obj->oo_sa_xattr, NV_UNIQUE_NAME, KM_SLEEP);
1994 /* initialize LMA */
1995 if (fid_is_idif(fid) || (fid_is_norm(fid) && osd->od_is_ost))
1996 compat |= LMAC_FID_ON_OST;
1997 lustre_lma_init(lma, fid, compat, 0);
1998 lustre_lma_swab(lma);
1999 rc = -nvlist_add_byte_array(obj->oo_sa_xattr, XATTR_NAME_LMA,
2000 (uchar_t *)lma, sizeof(*lma));
2004 /* configure new osd object */
2005 obj->oo_parent = parent != 0 ? parent : zapid;
2006 obj->oo_late_attr_set = 1;
2007 rc = __osd_sa_xattr_schedule_update(env, obj, oh);
2011 /* XXX: oo_lma_flags */
2012 obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
2013 if (likely(!fid_is_acct(lu_object_fid(&obj->oo_dt.do_lu))))
2014 /* no body operations for accounting objects */
2015 obj->oo_dt.do_body_ops = &osd_body_ops;
2017 osd_idc_find_and_init(env, osd, obj);
2020 if (unlikely(rc && dn)) {
2021 dmu_object_free(osd->od_os, dn->dn_object, oh->ot_tx);
2025 obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
2027 up_write(&obj->oo_guard);
2031 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
2034 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
2035 return osd_declare_attr_set(env, dt, NULL, th);
2039 * Concurrency: @dt is write locked.
2041 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
2042 struct thandle *handle)
2044 struct osd_object *obj = osd_dt_obj(dt);
2045 struct osd_thandle *oh;
2046 struct osd_device *osd = osd_obj2dev(obj);
2052 down_read(&obj->oo_guard);
2053 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
2054 GOTO(out, rc = -ENOENT);
2056 LASSERT(osd_invariant(obj));
2057 LASSERT(obj->oo_sa_hdl != NULL);
2059 oh = container_of(handle, struct osd_thandle, ot_super);
2061 write_lock(&obj->oo_attr_lock);
2062 nlink = ++obj->oo_attr.la_nlink;
2063 write_unlock(&obj->oo_attr_lock);
2065 rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
2068 up_read(&obj->oo_guard);
2072 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
2073 struct thandle *handle)
2075 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
2076 return osd_declare_attr_set(env, dt, NULL, handle);
2080 * Concurrency: @dt is write locked.
2082 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
2083 struct thandle *handle)
2085 struct osd_object *obj = osd_dt_obj(dt);
2086 struct osd_thandle *oh;
2087 struct osd_device *osd = osd_obj2dev(obj);
2093 down_read(&obj->oo_guard);
2095 if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
2096 GOTO(out, rc = -ENOENT);
2098 LASSERT(osd_invariant(obj));
2099 LASSERT(obj->oo_sa_hdl != NULL);
2101 oh = container_of(handle, struct osd_thandle, ot_super);
2102 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2104 write_lock(&obj->oo_attr_lock);
2105 nlink = --obj->oo_attr.la_nlink;
2106 write_unlock(&obj->oo_attr_lock);
2108 rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
2111 up_read(&obj->oo_guard);
2115 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
2116 __u64 start, __u64 end)
2118 struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
2119 struct dmu_buf_impl *db = osd_dt_obj(dt)->oo_dn->dn_dbuf;
2123 if (osd->od_dt_dev.dd_rdonly)
2126 mutex_enter(&db->db_mtx);
2127 if (db->db_last_dirty)
2128 txg = db->db_last_dirty->dr_txg;
2129 mutex_exit(&db->db_mtx);
2132 /* the object is dirty or being synced */
2133 if (osd_object_sync_delay_us < 0)
2134 txg_wait_synced(dmu_objset_pool(osd->od_os), txg);
2136 udelay(osd_object_sync_delay_us);
2142 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
2147 static struct dt_object_operations osd_obj_ops = {
2148 .do_read_lock = osd_read_lock,
2149 .do_write_lock = osd_write_lock,
2150 .do_read_unlock = osd_read_unlock,
2151 .do_write_unlock = osd_write_unlock,
2152 .do_write_locked = osd_write_locked,
2153 .do_attr_get = osd_attr_get,
2154 .do_declare_attr_set = osd_declare_attr_set,
2155 .do_attr_set = osd_attr_set,
2156 .do_ah_init = osd_ah_init,
2157 .do_declare_create = osd_declare_create,
2158 .do_create = osd_create,
2159 .do_declare_destroy = osd_declare_destroy,
2160 .do_destroy = osd_destroy,
2161 .do_index_try = osd_index_try,
2162 .do_declare_ref_add = osd_declare_ref_add,
2163 .do_ref_add = osd_ref_add,
2164 .do_declare_ref_del = osd_declare_ref_del,
2165 .do_ref_del = osd_ref_del,
2166 .do_xattr_get = osd_xattr_get,
2167 .do_declare_xattr_set = osd_declare_xattr_set,
2168 .do_xattr_set = osd_xattr_set,
2169 .do_declare_xattr_del = osd_declare_xattr_del,
2170 .do_xattr_del = osd_xattr_del,
2171 .do_xattr_list = osd_xattr_list,
2172 .do_object_sync = osd_object_sync,
2173 .do_invalidate = osd_invalidate,
2176 static struct lu_object_operations osd_lu_obj_ops = {
2177 .loo_object_init = osd_object_init,
2178 .loo_object_delete = osd_object_delete,
2179 .loo_object_release = osd_object_release,
2180 .loo_object_free = osd_object_free,
2181 .loo_object_print = osd_object_print,
2182 .loo_object_invariant = osd_object_invariant,
2185 static int osd_otable_it_attr_get(const struct lu_env *env,
2186 struct dt_object *dt,
2187 struct lu_attr *attr)
2193 static struct dt_object_operations osd_obj_otable_it_ops = {
2194 .do_attr_get = osd_otable_it_attr_get,
2195 .do_index_try = osd_index_try,
2198 module_param(osd_object_sync_delay_us, int, 0644);
2199 MODULE_PARM_DESC(osd_object_sync_delay_us,
2200 "If zero or larger delay N usec instead of doing object sync");