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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd/osd_handler.c
38 * Top-level entry points into osd module
40 * Author: Nikita Danilov <nikita@clusterfs.com>
41 * Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
44 #define DEBUG_SUBSYSTEM S_OSD
46 #include <linux/module.h>
48 /* LUSTRE_VERSION_CODE */
49 #include <lustre_ver.h>
50 /* prerequisite for linux/xattr.h */
51 #include <linux/types.h>
52 /* prerequisite for linux/xattr.h */
54 /* XATTR_{REPLACE,CREATE} */
55 #include <linux/xattr.h>
58 * struct OBD_{ALLOC,FREE}*()
61 #include <obd_support.h>
62 /* struct ptlrpc_thread */
63 #include <lustre_net.h>
64 #include <lustre_fid.h>
66 #include <lustre_param.h>
68 #include "osd_internal.h"
69 #include "osd_dynlocks.h"
71 /* llo_* api support */
72 #include <md_object.h>
73 #include <lustre_quota.h>
75 #include <ldiskfs/xattr.h>
76 #include <lustre_linkea.h>
79 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
80 "ldiskfs with parallel directory operations");
82 int ldiskfs_track_declares_assert;
83 CFS_MODULE_PARM(ldiskfs_track_declares_assert, "i", int, 0644,
84 "LBUG during tracking of declares");
86 /* Slab to allocate dynlocks */
87 struct kmem_cache *dynlock_cachep;
89 static struct lu_kmem_descr ldiskfs_caches[] = {
91 .ckd_cache = &dynlock_cachep,
92 .ckd_name = "dynlock_cache",
93 .ckd_size = sizeof(struct dynlock_handle)
100 static const char dot[] = ".";
101 static const char dotdot[] = "..";
102 static const char remote_obj_dir[] = "REM_OBJ_DIR";
104 static const struct lu_object_operations osd_lu_obj_ops;
105 static const struct dt_object_operations osd_obj_ops;
106 static const struct dt_object_operations osd_obj_ea_ops;
107 static const struct dt_object_operations osd_obj_otable_it_ops;
108 static const struct dt_index_operations osd_index_iam_ops;
109 static const struct dt_index_operations osd_index_ea_ops;
111 int osd_trans_declare_op2rb[] = {
112 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
113 [OSD_OT_PUNCH] = OSD_OT_MAX,
114 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
115 [OSD_OT_CREATE] = OSD_OT_DESTROY,
116 [OSD_OT_DESTROY] = OSD_OT_CREATE,
117 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
118 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
119 [OSD_OT_WRITE] = OSD_OT_WRITE,
120 [OSD_OT_INSERT] = OSD_OT_DELETE,
121 [OSD_OT_DELETE] = OSD_OT_INSERT,
122 [OSD_OT_UPDATE] = OSD_OT_MAX,
123 [OSD_OT_QUOTA] = OSD_OT_MAX,
126 static int osd_has_index(const struct osd_object *obj)
128 return obj->oo_dt.do_index_ops != NULL;
131 static int osd_object_invariant(const struct lu_object *l)
133 return osd_invariant(osd_obj(l));
137 * Concurrency: doesn't matter
141 * Concurrency: doesn't matter
143 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
145 struct osd_thread_info *oti = osd_oti_get(env);
146 return oti->oti_w_locks > 0 && o->oo_owner == env;
150 * Concurrency: doesn't access mutable data
152 static int osd_root_get(const struct lu_env *env,
153 struct dt_device *dev, struct lu_fid *f)
155 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
160 * OSD object methods.
164 * Concurrency: no concurrent access is possible that early in object
167 static struct lu_object *osd_object_alloc(const struct lu_env *env,
168 const struct lu_object_header *hdr,
171 struct osd_object *mo;
177 l = &mo->oo_dt.do_lu;
178 dt_object_init(&mo->oo_dt, NULL, d);
179 mo->oo_dt.do_ops = &osd_obj_ea_ops;
180 l->lo_ops = &osd_lu_obj_ops;
181 init_rwsem(&mo->oo_sem);
182 init_rwsem(&mo->oo_ext_idx_sem);
183 spin_lock_init(&mo->oo_guard);
190 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
191 struct dentry *dentry, struct lustre_mdt_attrs *lma)
195 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
196 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
197 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
199 if ((void *)lma != (void *)info->oti_mdt_attrs_old)
200 memcpy(lma, info->oti_mdt_attrs_old, sizeof(*lma));
202 lustre_lma_swab(lma);
203 /* Check LMA compatibility */
204 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
205 CWARN("%.16s: unsupported incompat LMA feature(s) %#x "
206 "for fid = "DFID", ino = %lu\n",
207 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
208 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
209 PFID(&lma->lma_self_fid), inode->i_ino);
212 } else if (rc == 0) {
220 * retrieve object from backend ext fs.
222 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
223 struct osd_inode_id *id)
225 struct inode *inode = NULL;
227 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
229 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
230 id->oii_ino, PTR_ERR(inode));
231 } else if (id->oii_gen != OSD_OII_NOGEN &&
232 inode->i_generation != id->oii_gen) {
233 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
234 "i_generation = %u\n",
235 id->oii_ino, id->oii_gen, inode->i_generation);
237 inode = ERR_PTR(-ESTALE);
238 } else if (inode->i_nlink == 0) {
239 /* due to parallel readdir and unlink,
240 * we can have dead inode here. */
241 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
243 inode = ERR_PTR(-ESTALE);
244 } else if (is_bad_inode(inode)) {
245 CWARN("%.16s: bad inode: ino = %u\n",
246 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, id->oii_ino);
248 inode = ERR_PTR(-ENOENT);
250 if (id->oii_gen == OSD_OII_NOGEN)
251 osd_id_gen(id, inode->i_ino, inode->i_generation);
253 /* Do not update file c/mtime in ldiskfs.
254 * NB: we don't have any lock to protect this because we don't
255 * have reference on osd_object now, but contention with
256 * another lookup + attr_set can't happen in the tiny window
257 * between if (...) and set S_NOCMTIME. */
258 if (!(inode->i_flags & S_NOCMTIME))
259 inode->i_flags |= S_NOCMTIME;
264 static struct inode *
265 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
266 struct osd_inode_id *id, struct lu_fid *fid)
268 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
272 inode = osd_iget(info, dev, id);
276 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
278 *fid = lma->lma_self_fid;
279 } else if (rc == -ENODATA) {
280 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
281 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
283 lu_igif_build(fid, inode->i_ino, inode->i_generation);
291 static struct inode *osd_iget_check(struct osd_thread_info *info,
292 struct osd_device *dev,
293 const struct lu_fid *fid,
294 struct osd_inode_id *id,
301 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
304 if (!in_oi || (rc != -ENOENT && rc != -ESTALE)) {
305 CDEBUG(D_INODE, "no inode: ino = %u, rc = %d\n",
314 if (is_bad_inode(inode)) {
317 CDEBUG(D_INODE, "bad inode: ino = %u\n", id->oii_ino);
325 if (id->oii_gen != OSD_OII_NOGEN &&
326 inode->i_generation != id->oii_gen) {
329 CDEBUG(D_INODE, "unmatched inode: ino = %u, "
330 "oii_gen = %u, i_generation = %u\n",
331 id->oii_ino, id->oii_gen, inode->i_generation);
339 if (inode->i_nlink == 0) {
342 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
352 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
354 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
355 /* XXX: There are some possible cases:
357 * Backup/restore caused the OI invalid.
359 * Someone unlinked the object but NOT removed
360 * the OI mapping, such as mount target device
361 * as ldiskfs, and modify something directly.
363 * Someone just removed the object between the
364 * former oi_lookup and the iget. It is normal.
365 * 4. Other failure cases.
367 * Generally, when the device is mounted, it will
368 * auto check whether the system is restored from
369 * file-level backup or not. We trust such detect
370 * to distinguish the 1st case from the 2nd case. */
372 if (!IS_ERR(inode) && inode->i_generation != 0 &&
373 inode->i_generation == id->oii_gen)
379 if (id->oii_gen == OSD_OII_NOGEN)
380 osd_id_gen(id, inode->i_ino, inode->i_generation);
382 /* Do not update file c/mtime in ldiskfs.
383 * NB: we don't have any lock to protect this because we don't
384 * have reference on osd_object now, but contention with
385 * another lookup + attr_set can't happen in the tiny window
386 * between if (...) and set S_NOCMTIME. */
387 if (!(inode->i_flags & S_NOCMTIME))
388 inode->i_flags |= S_NOCMTIME;
405 * \retval +v: new filter_fid, does not contain self-fid
406 * \retval 0: filter_fid_old, contains self-fid
407 * \retval -v: other failure cases
409 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
410 struct dentry *dentry, struct lu_fid *fid)
412 struct filter_fid_old *ff = &info->oti_ff;
413 struct ost_id *ostid = &info->oti_ostid;
416 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
417 if (rc == sizeof(*ff)) {
419 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
420 ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
421 /* XXX: should use real OST index in the future. LU-3569 */
422 ostid_to_fid(fid, ostid, 0);
423 } else if (rc == sizeof(struct filter_fid)) {
425 } else if (rc >= 0) {
432 static int osd_lma_self_repair(struct osd_thread_info *info,
433 struct osd_device *osd, struct inode *inode,
434 const struct lu_fid *fid, __u32 compat)
439 LASSERT(current->journal_info == NULL);
441 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
442 osd_dto_credits_noquota[DTO_XATTR_SET]);
445 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
450 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
452 CWARN("%s: cannot self repair the LMA: rc = %d\n",
454 ldiskfs_journal_stop(jh);
458 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
460 struct osd_thread_info *info = osd_oti_get(env);
461 struct osd_device *osd = osd_obj2dev(obj);
462 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
463 struct inode *inode = obj->oo_inode;
464 struct dentry *dentry = &info->oti_obj_dentry;
465 struct lu_fid *fid = NULL;
466 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
470 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
471 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
472 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
473 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
474 fid = &lma->lma_self_fid;
475 rc = osd_get_idif(info, inode, dentry, fid);
476 if ((rc > 0) || (rc == -ENODATA && osd->od_lma_self_repair)) {
477 /* For the given OST-object, if it has neither LMA nor
478 * FID in XATTR_NAME_FID, then the given FID (which is
479 * contained in the @obj, from client RPC for locating
480 * the OST-object) is trusted. We use it to generate
482 osd_lma_self_repair(info, osd, inode, rfid,
483 fid_is_on_ost(info, osd, fid, OI_CHECK_FLD) ?
484 LMAC_FID_ON_OST : 0);
489 if (unlikely(rc == -ENODATA))
497 lustre_lma_swab(lma);
498 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
499 CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
500 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
501 "fid = "DFID", ino = %lu\n", osd_name(osd),
502 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
503 PFID(rfid), inode->i_ino);
505 } else if (!(lma->lma_compat & LMAC_NOT_IN_OI)) {
506 fid = &lma->lma_self_fid;
510 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
511 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
512 struct ost_id *oi = &info->oti_ostid;
513 struct lu_fid *fid1 = &info->oti_fid3;
514 __u32 idx = fid_idif_ost_idx(rfid);
516 /* For old IDIF, the OST index is not part of the IDIF,
517 * Means that different OSTs may have the same IDIFs.
518 * Under such case, we need to make some compatible
519 * check to make sure to trigger OI scrub properly. */
520 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
521 /* Given @rfid is new, LMA is old. */
522 fid_to_ostid(fid, oi);
523 ostid_to_fid(fid1, oi, idx);
524 if (lu_fid_eq(fid1, rfid)) {
525 if (osd->od_lma_self_repair)
526 osd_lma_self_repair(info, osd,
534 CDEBUG(D_INODE, "%s: FID "DFID" != self_fid "DFID"\n",
535 osd_name(osd), PFID(rfid), PFID(fid));
542 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
543 const struct lu_fid *fid,
544 const struct lu_object_conf *conf)
546 struct osd_thread_info *info;
547 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
548 struct osd_device *dev;
549 struct osd_idmap_cache *oic;
550 struct osd_inode_id *id;
552 struct osd_scrub *scrub;
553 struct scrub_file *sf;
557 bool triggered = false;
560 LINVRNT(osd_invariant(obj));
561 LASSERT(obj->oo_inode == NULL);
562 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
565 scrub = &dev->od_scrub;
566 sf = &scrub->os_file;
567 info = osd_oti_get(env);
569 oic = &info->oti_cache;
571 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
574 /* For the object is created as locking anchor, or for the object to
575 * be created on disk. No need to osd_oi_lookup() at here because FID
576 * shouldn't never be re-used, if it's really a duplicate FID from
577 * unexpected reason, we should be able to detect it later by calling
578 * do_create->osd_oi_insert(). */
579 if (conf != NULL && conf->loc_flags & LOC_F_NEW)
580 GOTO(out, result = 0);
582 /* Search order: 1. per-thread cache. */
583 if (lu_fid_eq(fid, &oic->oic_fid) &&
584 likely(oic->oic_dev == dev)) {
590 if (!list_empty(&scrub->os_inconsistent_items)) {
591 /* Search order: 2. OI scrub pending list. */
592 result = osd_oii_lookup(dev, fid, id);
597 /* Search order: 3. OI files. */
598 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
599 if (result == -ENOENT) {
600 if (!fid_is_norm(fid) ||
601 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
602 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
604 GOTO(out, result = 0);
615 inode = osd_iget_check(info, dev, fid, id, in_oi);
617 result = PTR_ERR(inode);
618 if (result == -ENOENT || result == -ESTALE) {
620 fid_zero(&oic->oic_fid);
622 GOTO(out, result = -ENOENT);
623 } else if (result == -EREMCHG) {
627 fid_zero(&oic->oic_fid);
629 if (unlikely(triggered))
630 GOTO(out, result = saved);
633 if (thread_is_running(&scrub->os_thread)) {
634 result = -EINPROGRESS;
635 } else if (!dev->od_noscrub) {
636 result = osd_scrub_start(dev);
637 LCONSOLE_WARN("%.16s: trigger OI scrub by RPC "
638 "for "DFID", rc = %d [1]\n",
639 osd_name(dev), PFID(fid),result);
640 if (result == 0 || result == -EALREADY)
641 result = -EINPROGRESS;
646 /* We still have chance to get the valid inode: for the
647 * object which is referenced by remote name entry, the
648 * object on the local MDT will be linked under the dir
649 * of "/REMOTE_PARENT_DIR" with its FID string as name.
651 * We do not know whether the object for the given FID
652 * is referenced by some remote name entry or not, and
653 * especially for DNE II, a multiple-linked object may
654 * have many name entries reside on many MDTs.
656 * To simplify the operation, OSD will not distinguish
657 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
658 * only happened for the RPC from other MDT during the
659 * OI scrub, or for the client side RPC with FID only,
660 * such as FID to path, or from old connected client. */
662 result = osd_lookup_in_remote_parent(info, dev,
675 obj->oo_inode = inode;
676 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
678 result = osd_check_lma(env, obj);
681 obj->oo_inode = NULL;
682 if (result == -EREMCHG) {
684 result = osd_oi_lookup(info, dev, fid, id,
687 fid_zero(&oic->oic_fid);
698 obj->oo_compat_dot_created = 1;
699 obj->oo_compat_dotdot_created = 1;
701 if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
702 GOTO(out, result = 0);
704 LASSERT(obj->oo_hl_head == NULL);
705 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
706 if (obj->oo_hl_head == NULL) {
707 obj->oo_inode = NULL;
709 GOTO(out, result = -ENOMEM);
711 GOTO(out, result = 0);
714 LINVRNT(osd_invariant(obj));
719 * Concurrency: shouldn't matter.
721 static void osd_object_init0(struct osd_object *obj)
723 LASSERT(obj->oo_inode != NULL);
724 obj->oo_dt.do_body_ops = &osd_body_ops;
725 obj->oo_dt.do_lu.lo_header->loh_attr |=
726 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
730 * Concurrency: no concurrent access is possible that early in object
733 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
734 const struct lu_object_conf *conf)
736 struct osd_object *obj = osd_obj(l);
739 LINVRNT(osd_invariant(obj));
741 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
742 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
743 l->lo_header->loh_attr |= LOHA_EXISTS;
747 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
748 obj->oo_dt.do_body_ops = &osd_body_ops_new;
749 if (result == 0 && obj->oo_inode != NULL)
750 osd_object_init0(obj);
752 LINVRNT(osd_invariant(obj));
757 * Concurrency: no concurrent access is possible that late in object
760 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
762 struct osd_object *obj = osd_obj(l);
764 LINVRNT(osd_invariant(obj));
766 dt_object_fini(&obj->oo_dt);
767 if (obj->oo_hl_head != NULL)
768 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
773 * Concurrency: no concurrent access is possible that late in object
776 static void osd_index_fini(struct osd_object *o)
778 struct iam_container *bag;
780 if (o->oo_dir != NULL) {
781 bag = &o->oo_dir->od_container;
782 if (o->oo_inode != NULL) {
783 if (bag->ic_object == o->oo_inode)
784 iam_container_fini(bag);
786 OBD_FREE_PTR(o->oo_dir);
792 * Concurrency: no concurrent access is possible that late in object
793 * life-cycle (for all existing callers, that is. New callers have to provide
794 * their own locking.)
796 static int osd_inode_unlinked(const struct inode *inode)
798 return inode->i_nlink == 0;
802 OSD_TXN_OI_DELETE_CREDITS = 20,
803 OSD_TXN_INODE_DELETE_CREDITS = 20
810 #if OSD_THANDLE_STATS
812 * Set time when the handle is allocated
814 static void osd_th_alloced(struct osd_thandle *oth)
816 oth->oth_alloced = cfs_time_current();
820 * Set time when the handle started
822 static void osd_th_started(struct osd_thandle *oth)
824 oth->oth_started = cfs_time_current();
828 * Helper function to convert time interval to microseconds packed in
831 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
835 cfs_duration_usec(cfs_time_sub(end, start), &val);
836 return val.tv_sec * 1000000 + val.tv_usec;
840 * Check whether the we deal with this handle for too long.
842 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
843 cfs_time_t alloced, cfs_time_t started,
846 cfs_time_t now = cfs_time_current();
848 LASSERT(dev != NULL);
850 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
851 interval_to_usec(alloced, started));
852 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
853 interval_to_usec(started, closed));
854 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
855 interval_to_usec(closed, now));
857 if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
858 CWARN("transaction handle %p was open for too long: "
860 "alloced "CFS_TIME_T" ,"
861 "started "CFS_TIME_T" ,"
862 "closed "CFS_TIME_T"\n",
863 oth, now, alloced, started, closed);
864 libcfs_debug_dumpstack(NULL);
868 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
870 cfs_time_t __closed = cfs_time_current(); \
871 cfs_time_t __alloced = oth->oth_alloced; \
872 cfs_time_t __started = oth->oth_started; \
875 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
878 #else /* OSD_THANDLE_STATS */
880 #define osd_th_alloced(h) do {} while(0)
881 #define osd_th_started(h) do {} while(0)
882 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
884 #endif /* OSD_THANDLE_STATS */
887 * Concurrency: doesn't access mutable data.
889 static int osd_param_is_not_sane(const struct osd_device *dev,
890 const struct thandle *th)
892 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
894 return oh->ot_credits > osd_transaction_size(dev);
898 * Concurrency: shouldn't matter.
900 static void osd_trans_commit_cb(struct super_block *sb,
901 struct ldiskfs_journal_cb_entry *jcb, int error)
903 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
904 struct thandle *th = &oh->ot_super;
905 struct lu_device *lud = &th->th_dev->dd_lu_dev;
906 struct dt_txn_commit_cb *dcb, *tmp;
908 LASSERT(oh->ot_handle == NULL);
911 CERROR("transaction @0x%p commit error: %d\n", th, error);
913 dt_txn_hook_commit(th);
915 /* call per-transaction callbacks if any */
916 list_for_each_entry_safe(dcb, tmp, &oh->ot_dcb_list, dcb_linkage) {
917 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
918 "commit callback entry: magic=%x name='%s'\n",
919 dcb->dcb_magic, dcb->dcb_name);
920 list_del_init(&dcb->dcb_linkage);
921 dcb->dcb_func(NULL, th, dcb, error);
924 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
928 lu_context_exit(&th->th_ctx);
929 lu_context_fini(&th->th_ctx);
933 static struct thandle *osd_trans_create(const struct lu_env *env,
936 struct osd_thread_info *oti = osd_oti_get(env);
937 struct osd_iobuf *iobuf = &oti->oti_iobuf;
938 struct osd_thandle *oh;
942 /* on pending IO in this thread should left from prev. request */
943 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
945 th = ERR_PTR(-ENOMEM);
946 OBD_ALLOC_GFP(oh, sizeof *oh, GFP_NOFS);
948 oh->ot_quota_trans = &oti->oti_quota_trans;
949 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
953 th->th_tags = LCT_TX_HANDLE;
955 atomic_set(&th->th_refc, 1);
956 th->th_alloc_size = sizeof(*oh);
957 oti->oti_dev = osd_dt_dev(d);
958 INIT_LIST_HEAD(&oh->ot_dcb_list);
961 memset(oti->oti_declare_ops, 0,
962 sizeof(oti->oti_declare_ops));
963 memset(oti->oti_declare_ops_rb, 0,
964 sizeof(oti->oti_declare_ops_rb));
965 memset(oti->oti_declare_ops_cred, 0,
966 sizeof(oti->oti_declare_ops_cred));
967 oti->oti_rollback = false;
973 * Concurrency: shouldn't matter.
975 int osd_trans_start(const struct lu_env *env, struct dt_device *d,
978 struct osd_thread_info *oti = osd_oti_get(env);
979 struct osd_device *dev = osd_dt_dev(d);
981 struct osd_thandle *oh;
986 LASSERT(current->journal_info == NULL);
988 oh = container_of0(th, struct osd_thandle, ot_super);
990 LASSERT(oh->ot_handle == NULL);
992 rc = dt_txn_hook_start(env, d, th);
996 if (unlikely(osd_param_is_not_sane(dev, th))) {
997 static unsigned long last_printed;
998 static int last_credits;
1000 CWARN("%.16s: too many transaction credits (%d > %d)\n",
1001 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
1003 osd_journal(dev)->j_max_transaction_buffers);
1004 CWARN(" create: %u/%u, destroy: %u/%u\n",
1005 oti->oti_declare_ops[OSD_OT_CREATE],
1006 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1007 oti->oti_declare_ops[OSD_OT_DESTROY],
1008 oti->oti_declare_ops_cred[OSD_OT_DESTROY]);
1009 CWARN(" attr_set: %u/%u, xattr_set: %u/%u\n",
1010 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1011 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1012 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1013 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET]);
1014 CWARN(" write: %u/%u, punch: %u/%u, quota %u/%u\n",
1015 oti->oti_declare_ops[OSD_OT_WRITE],
1016 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1017 oti->oti_declare_ops[OSD_OT_PUNCH],
1018 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1019 oti->oti_declare_ops[OSD_OT_QUOTA],
1020 oti->oti_declare_ops_cred[OSD_OT_QUOTA]);
1021 CWARN(" insert: %u/%u, delete: %u/%u\n",
1022 oti->oti_declare_ops[OSD_OT_INSERT],
1023 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1024 oti->oti_declare_ops[OSD_OT_DELETE],
1025 oti->oti_declare_ops_cred[OSD_OT_DELETE]);
1026 CWARN(" ref_add: %u/%u, ref_del: %u/%u\n",
1027 oti->oti_declare_ops[OSD_OT_REF_ADD],
1028 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1029 oti->oti_declare_ops[OSD_OT_REF_DEL],
1030 oti->oti_declare_ops_cred[OSD_OT_REF_DEL]);
1032 if (last_credits != oh->ot_credits &&
1033 time_after(jiffies, last_printed +
1034 msecs_to_jiffies(60 * MSEC_PER_SEC))) {
1035 libcfs_debug_dumpstack(NULL);
1036 last_credits = oh->ot_credits;
1037 last_printed = jiffies;
1039 /* XXX Limit the credits to 'max_transaction_buffers', and
1040 * let the underlying filesystem to catch the error if
1041 * we really need so many credits.
1043 * This should be removed when we can calculate the
1044 * credits precisely. */
1045 oh->ot_credits = osd_transaction_size(dev);
1049 * XXX temporary stuff. Some abstraction layer should
1052 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1056 LASSERT(oti->oti_txns == 0);
1057 lu_context_init(&th->th_ctx, th->th_tags);
1058 lu_context_enter(&th->th_ctx);
1060 lu_device_get(&d->dd_lu_dev);
1061 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1072 static int osd_seq_exists(const struct lu_env *env,
1073 struct osd_device *osd, obd_seq seq)
1075 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1076 struct seq_server_site *ss = osd_seq_site(osd);
1080 LASSERT(ss != NULL);
1081 LASSERT(ss->ss_server_fld != NULL);
1083 rc = osd_fld_lookup(env, osd, seq, range);
1086 CERROR("%s: can't lookup FLD sequence "LPX64
1087 ": rc = %d\n", osd_name(osd), seq, rc);
1091 RETURN(ss->ss_node_id == range->lsr_index);
1095 * Concurrency: shouldn't matter.
1097 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1101 struct osd_thandle *oh;
1102 struct osd_thread_info *oti = osd_oti_get(env);
1103 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1104 struct qsd_instance *qsd = oti->oti_dev->od_quota_slave;
1105 struct lquota_trans *qtrans;
1108 oh = container_of0(th, struct osd_thandle, ot_super);
1110 qtrans = oh->ot_quota_trans;
1111 oh->ot_quota_trans = NULL;
1113 if (oh->ot_handle != NULL) {
1114 handle_t *hdl = oh->ot_handle;
1117 * add commit callback
1118 * notice we don't do this in osd_trans_start()
1119 * as underlying transaction can change during truncate
1121 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1124 LASSERT(oti->oti_txns == 1);
1126 rc = dt_txn_hook_stop(env, th);
1128 CERROR("Failure in transaction hook: %d\n", rc);
1130 /* hook functions might modify th_sync */
1131 hdl->h_sync = th->th_sync;
1133 oh->ot_handle = NULL;
1134 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
1135 rc = ldiskfs_journal_stop(hdl));
1137 CERROR("Failure to stop transaction: %d\n", rc);
1139 thandle_put(&oh->ot_super);
1142 /* inform the quota slave device that the transaction is stopping */
1143 qsd_op_end(env, qsd, qtrans);
1145 /* as we want IO to journal and data IO be concurrent, we don't block
1146 * awaiting data IO completion in osd_do_bio(), instead we wait here
1147 * once transaction is submitted to the journal. all reqular requests
1148 * don't do direct IO (except read/write), thus this wait_event becomes
1151 * IMPORTANT: we have to wait till any IO submited by the thread is
1152 * completed otherwise iobuf may be corrupted by different request
1154 wait_event(iobuf->dr_wait,
1155 atomic_read(&iobuf->dr_numreqs) == 0);
1156 osd_fini_iobuf(oti->oti_dev, iobuf);
1158 rc = iobuf->dr_error;
1163 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1165 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1168 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1169 LASSERT(&dcb->dcb_func != NULL);
1170 list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
1176 * Called just before object is freed. Releases all resources except for
1177 * object itself (that is released by osd_object_free()).
1179 * Concurrency: no concurrent access is possible that late in object
1182 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1184 struct osd_object *obj = osd_obj(l);
1185 struct inode *inode = obj->oo_inode;
1187 LINVRNT(osd_invariant(obj));
1190 * If object is unlinked remove fid->ino mapping from object index.
1193 osd_index_fini(obj);
1194 if (inode != NULL) {
1195 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1196 qid_t uid = i_uid_read(inode);
1197 qid_t gid = i_gid_read(inode);
1200 obj->oo_inode = NULL;
1203 struct osd_thread_info *info = osd_oti_get(env);
1204 struct lquota_id_info *qi = &info->oti_qi;
1206 /* Release granted quota to master if necessary */
1207 qi->lqi_id.qid_uid = uid;
1208 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
1210 qi->lqi_id.qid_uid = gid;
1211 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
1217 * Concurrency: ->loo_object_release() is called under site spin-lock.
1219 static void osd_object_release(const struct lu_env *env,
1220 struct lu_object *l)
1225 * Concurrency: shouldn't matter.
1227 static int osd_object_print(const struct lu_env *env, void *cookie,
1228 lu_printer_t p, const struct lu_object *l)
1230 struct osd_object *o = osd_obj(l);
1231 struct iam_descr *d;
1233 if (o->oo_dir != NULL)
1234 d = o->oo_dir->od_container.ic_descr;
1237 return (*p)(env, cookie,
1238 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
1240 o->oo_inode ? o->oo_inode->i_ino : 0UL,
1241 o->oo_inode ? o->oo_inode->i_generation : 0,
1242 d ? d->id_ops->id_name : "plain");
1245 #define GRANT_FOR_LOCAL_OIDS 32 /* 128kB for last_rcvd, quota files, ... */
1248 * Concurrency: shouldn't matter.
1250 int osd_statfs(const struct lu_env *env, struct dt_device *d,
1251 struct obd_statfs *sfs)
1253 struct osd_device *osd = osd_dt_dev(d);
1254 struct super_block *sb = osd_sb(osd);
1255 struct kstatfs *ksfs;
1258 if (unlikely(osd->od_mnt == NULL))
1259 return -EINPROGRESS;
1261 /* osd_lproc.c call this without env, allocate ksfs for that case */
1262 if (unlikely(env == NULL)) {
1263 OBD_ALLOC_PTR(ksfs);
1267 ksfs = &osd_oti_get(env)->oti_ksfs;
1270 spin_lock(&osd->od_osfs_lock);
1271 result = sb->s_op->statfs(sb->s_root, ksfs);
1272 if (likely(result == 0)) { /* N.B. statfs can't really fail */
1273 statfs_pack(sfs, ksfs);
1274 if (sb->s_flags & MS_RDONLY)
1275 sfs->os_state = OS_STATE_READONLY;
1278 spin_unlock(&osd->od_osfs_lock);
1280 if (unlikely(env == NULL))
1283 /* Reserve a small amount of space for local objects like last_rcvd,
1284 * llog, quota files, ... */
1285 if (sfs->os_bavail <= GRANT_FOR_LOCAL_OIDS) {
1288 sfs->os_bavail -= GRANT_FOR_LOCAL_OIDS;
1289 /** Take out metadata overhead for indirect blocks */
1290 sfs->os_bavail -= sfs->os_bavail >> (sb->s_blocksize_bits - 3);
1297 * Estimate space needed for file creations. We assume the largest filename
1298 * which is 2^64 - 1, hence a filename of 20 chars.
1299 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
1301 #ifdef __LDISKFS_DIR_REC_LEN
1302 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
1304 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
1308 * Concurrency: doesn't access mutable data.
1310 static void osd_conf_get(const struct lu_env *env,
1311 const struct dt_device *dev,
1312 struct dt_device_param *param)
1314 struct super_block *sb = osd_sb(osd_dt_dev(dev));
1318 * XXX should be taken from not-yet-existing fs abstraction layer.
1320 param->ddp_max_name_len = LDISKFS_NAME_LEN;
1321 param->ddp_max_nlink = LDISKFS_LINK_MAX;
1322 param->ddp_block_shift = sb->s_blocksize_bits;
1323 param->ddp_mount_type = LDD_MT_LDISKFS;
1324 param->ddp_maxbytes = sb->s_maxbytes;
1325 /* Overhead estimate should be fairly accurate, so we really take a tiny
1326 * error margin which also avoids fragmenting the filesystem too much */
1327 param->ddp_grant_reserved = 2; /* end up to be 1.9% after conversion */
1328 /* inode are statically allocated, so per-inode space consumption
1329 * is the space consumed by the directory entry */
1330 param->ddp_inodespace = PER_OBJ_USAGE;
1331 /* per-fragment overhead to be used by the client code */
1332 param->ddp_grant_frag = 6 * LDISKFS_BLOCK_SIZE(sb);
1333 param->ddp_mntopts = 0;
1334 if (test_opt(sb, XATTR_USER))
1335 param->ddp_mntopts |= MNTOPT_USERXATTR;
1336 if (test_opt(sb, POSIX_ACL))
1337 param->ddp_mntopts |= MNTOPT_ACL;
1339 /* LOD might calculate the max stripe count based on max_ea_size,
1340 * so we need take account in the overhead as well,
1341 * xattr_header + magic + xattr_entry_head */
1342 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
1343 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
1345 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1346 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
1347 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
1351 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
1355 * Concurrency: shouldn't matter.
1357 static int osd_sync(const struct lu_env *env, struct dt_device *d)
1359 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1360 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
1364 * Start commit for OSD device.
1366 * An implementation of dt_commit_async method for OSD device.
1367 * Asychronously starts underlayng fs sync and thereby a transaction
1370 * \param env environment
1371 * \param d dt device
1373 * \see dt_device_operations
1375 static int osd_commit_async(const struct lu_env *env,
1376 struct dt_device *d)
1378 struct super_block *s = osd_sb(osd_dt_dev(d));
1381 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1382 RETURN(s->s_op->sync_fs(s, 0));
1386 * Concurrency: shouldn't matter.
1389 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1391 struct super_block *sb = osd_sb(osd_dt_dev(d));
1392 struct block_device *dev = sb->s_bdev;
1393 #ifdef HAVE_DEV_SET_RDONLY
1394 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
1397 int rc = -EOPNOTSUPP;
1401 #ifdef HAVE_DEV_SET_RDONLY
1402 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1404 if (jdev && (jdev != dev)) {
1405 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
1407 dev_set_rdonly(jdev);
1409 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
1410 dev_set_rdonly(dev);
1412 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
1413 osd_dt_dev(d)->od_svname, (long)dev, rc);
1419 * Concurrency: serialization provided by callers.
1421 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
1422 int mode, unsigned long timeout, __u32 alg,
1423 struct lustre_capa_key *keys)
1425 struct osd_device *dev = osd_dt_dev(d);
1428 dev->od_fl_capa = mode;
1429 dev->od_capa_timeout = timeout;
1430 dev->od_capa_alg = alg;
1431 dev->od_capa_keys = keys;
1436 * Note: we do not count into QUOTA here.
1437 * If we mount with --data_journal we may need more.
1439 const int osd_dto_credits_noquota[DTO_NR] = {
1442 * INDEX_EXTRA_TRANS_BLOCKS(8) +
1443 * SINGLEDATA_TRANS_BLOCKS(8)
1444 * XXX Note: maybe iam need more, since iam have more level than
1447 [DTO_INDEX_INSERT] = 16,
1450 * just modify a single entry, probably merge few within a block
1452 [DTO_INDEX_DELETE] = 1,
1456 [DTO_INDEX_UPDATE] = 16,
1458 * 4(inode, inode bits, groups, GDT)
1459 * notice: OI updates are counted separately with DTO_INDEX_INSERT
1461 [DTO_OBJECT_CREATE] = 4,
1463 * 4(inode, inode bits, groups, GDT)
1464 * notice: OI updates are counted separately with DTO_INDEX_DELETE
1466 [DTO_OBJECT_DELETE] = 4,
1468 * Attr set credits (inode)
1470 [DTO_ATTR_SET_BASE] = 1,
1472 * Xattr set. The same as xattr of EXT3.
1473 * DATA_TRANS_BLOCKS(14)
1474 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1475 * are also counted in. Do not know why?
1477 [DTO_XATTR_SET] = 14,
1479 * credits for inode change during write.
1481 [DTO_WRITE_BASE] = 3,
1483 * credits for single block write.
1485 [DTO_WRITE_BLOCK] = 14,
1487 * Attr set credits for chown.
1488 * This is extra credits for setattr, and it is null without quota
1490 [DTO_ATTR_SET_CHOWN] = 0
1493 static const struct dt_device_operations osd_dt_ops = {
1494 .dt_root_get = osd_root_get,
1495 .dt_statfs = osd_statfs,
1496 .dt_trans_create = osd_trans_create,
1497 .dt_trans_start = osd_trans_start,
1498 .dt_trans_stop = osd_trans_stop,
1499 .dt_trans_cb_add = osd_trans_cb_add,
1500 .dt_conf_get = osd_conf_get,
1501 .dt_sync = osd_sync,
1503 .dt_commit_async = osd_commit_async,
1504 .dt_init_capa_ctxt = osd_init_capa_ctxt,
1507 static void osd_object_read_lock(const struct lu_env *env,
1508 struct dt_object *dt, unsigned role)
1510 struct osd_object *obj = osd_dt_obj(dt);
1511 struct osd_thread_info *oti = osd_oti_get(env);
1513 LINVRNT(osd_invariant(obj));
1515 LASSERT(obj->oo_owner != env);
1516 down_read_nested(&obj->oo_sem, role);
1518 LASSERT(obj->oo_owner == NULL);
1522 static void osd_object_write_lock(const struct lu_env *env,
1523 struct dt_object *dt, unsigned role)
1525 struct osd_object *obj = osd_dt_obj(dt);
1526 struct osd_thread_info *oti = osd_oti_get(env);
1528 LINVRNT(osd_invariant(obj));
1530 LASSERT(obj->oo_owner != env);
1531 down_write_nested(&obj->oo_sem, role);
1533 LASSERT(obj->oo_owner == NULL);
1534 obj->oo_owner = env;
1538 static void osd_object_read_unlock(const struct lu_env *env,
1539 struct dt_object *dt)
1541 struct osd_object *obj = osd_dt_obj(dt);
1542 struct osd_thread_info *oti = osd_oti_get(env);
1544 LINVRNT(osd_invariant(obj));
1546 LASSERT(oti->oti_r_locks > 0);
1548 up_read(&obj->oo_sem);
1551 static void osd_object_write_unlock(const struct lu_env *env,
1552 struct dt_object *dt)
1554 struct osd_object *obj = osd_dt_obj(dt);
1555 struct osd_thread_info *oti = osd_oti_get(env);
1557 LINVRNT(osd_invariant(obj));
1559 LASSERT(obj->oo_owner == env);
1560 LASSERT(oti->oti_w_locks > 0);
1562 obj->oo_owner = NULL;
1563 up_write(&obj->oo_sem);
1566 static int osd_object_write_locked(const struct lu_env *env,
1567 struct dt_object *dt)
1569 struct osd_object *obj = osd_dt_obj(dt);
1571 LINVRNT(osd_invariant(obj));
1573 return obj->oo_owner == env;
1576 static int capa_is_sane(const struct lu_env *env,
1577 struct osd_device *dev,
1578 struct lustre_capa *capa,
1579 struct lustre_capa_key *keys)
1581 struct osd_thread_info *oti = osd_oti_get(env);
1582 struct lustre_capa *tcapa = &oti->oti_capa;
1583 struct obd_capa *oc;
1587 oc = capa_lookup(dev->od_capa_hash, capa, 0);
1589 if (capa_is_expired(oc)) {
1590 DEBUG_CAPA(D_ERROR, capa, "expired");
1597 if (capa_is_expired_sec(capa)) {
1598 DEBUG_CAPA(D_ERROR, capa, "expired");
1602 spin_lock(&capa_lock);
1603 for (i = 0; i < 2; i++) {
1604 if (keys[i].lk_keyid == capa->lc_keyid) {
1605 oti->oti_capa_key = keys[i];
1609 spin_unlock(&capa_lock);
1612 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1616 rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1620 if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1621 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1625 oc = capa_add(dev->od_capa_hash, capa);
1631 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1632 struct lustre_capa *capa, __u64 opc)
1634 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1635 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
1636 struct lu_capainfo *lci;
1639 if (!osd->od_fl_capa)
1642 if (capa == BYPASS_CAPA)
1645 lci = lu_capainfo_get(env);
1646 if (unlikely(lci == NULL))
1649 if (lci->lci_auth == LC_ID_NONE)
1653 CERROR("%s: no capability provided for FID "DFID": rc = %d\n",
1654 osd_name(osd), PFID(fid), -EACCES);
1658 if (!lu_fid_eq(fid, &capa->lc_fid)) {
1659 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1664 if (!capa_opc_supported(capa, opc)) {
1665 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1669 rc = capa_is_sane(env, osd, capa, osd->od_capa_keys);
1671 DEBUG_CAPA(D_ERROR, capa, "insane: rc = %d", rc);
1678 static struct timespec *osd_inode_time(const struct lu_env *env,
1679 struct inode *inode, __u64 seconds)
1681 struct osd_thread_info *oti = osd_oti_get(env);
1682 struct timespec *t = &oti->oti_time;
1684 t->tv_sec = seconds;
1686 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1691 static void osd_inode_getattr(const struct lu_env *env,
1692 struct inode *inode, struct lu_attr *attr)
1694 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1695 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1696 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE |
1699 attr->la_atime = LTIME_S(inode->i_atime);
1700 attr->la_mtime = LTIME_S(inode->i_mtime);
1701 attr->la_ctime = LTIME_S(inode->i_ctime);
1702 attr->la_mode = inode->i_mode;
1703 attr->la_size = i_size_read(inode);
1704 attr->la_blocks = inode->i_blocks;
1705 attr->la_uid = i_uid_read(inode);
1706 attr->la_gid = i_gid_read(inode);
1707 attr->la_flags = LDISKFS_I(inode)->i_flags;
1708 attr->la_nlink = inode->i_nlink;
1709 attr->la_rdev = inode->i_rdev;
1710 attr->la_blksize = 1 << inode->i_blkbits;
1711 attr->la_blkbits = inode->i_blkbits;
1714 static int osd_attr_get(const struct lu_env *env,
1715 struct dt_object *dt,
1716 struct lu_attr *attr,
1717 struct lustre_capa *capa)
1719 struct osd_object *obj = osd_dt_obj(dt);
1721 LASSERT(dt_object_exists(dt));
1722 LASSERT(!dt_object_remote(dt));
1723 LINVRNT(osd_invariant(obj));
1725 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1728 spin_lock(&obj->oo_guard);
1729 osd_inode_getattr(env, obj->oo_inode, attr);
1730 spin_unlock(&obj->oo_guard);
1734 static int osd_declare_attr_set(const struct lu_env *env,
1735 struct dt_object *dt,
1736 const struct lu_attr *attr,
1737 struct thandle *handle)
1739 struct osd_thandle *oh;
1740 struct osd_object *obj;
1741 struct osd_thread_info *info = osd_oti_get(env);
1742 struct lquota_id_info *qi = &info->oti_qi;
1750 LASSERT(dt != NULL);
1751 LASSERT(handle != NULL);
1753 obj = osd_dt_obj(dt);
1754 LASSERT(osd_invariant(obj));
1756 oh = container_of0(handle, struct osd_thandle, ot_super);
1757 LASSERT(oh->ot_handle == NULL);
1759 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
1760 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
1762 if (attr == NULL || obj->oo_inode == NULL)
1765 bspace = obj->oo_inode->i_blocks;
1766 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
1767 bspace = toqb(bspace);
1769 /* Changing ownership is always preformed by super user, it should not
1772 * We still need to call the osd_declare_qid() to calculate the journal
1773 * credits for updating quota accounting files and to trigger quota
1774 * space adjustment once the operation is completed.*/
1775 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
1777 uid = i_uid_read(obj->oo_inode);
1778 qi->lqi_type = USRQUOTA;
1779 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
1780 /* inode accounting */
1781 qi->lqi_is_blk = false;
1783 /* one more inode for the new uid ... */
1784 qi->lqi_id.qid_uid = attr->la_uid;
1786 /* Reserve credits for the new uid */
1787 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
1788 if (rc == -EDQUOT || rc == -EINPROGRESS)
1793 /* and one less inode for the current uid */
1794 qi->lqi_id.qid_uid = uid;
1796 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1797 if (rc == -EDQUOT || rc == -EINPROGRESS)
1802 /* block accounting */
1803 qi->lqi_is_blk = true;
1805 /* more blocks for the new uid ... */
1806 qi->lqi_id.qid_uid = attr->la_uid;
1807 qi->lqi_space = bspace;
1809 * Credits for the new uid has been reserved, re-use "obj"
1810 * to save credit reservation.
1812 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1813 if (rc == -EDQUOT || rc == -EINPROGRESS)
1818 /* and finally less blocks for the current uid */
1819 qi->lqi_id.qid_uid = uid;
1820 qi->lqi_space = -bspace;
1821 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1822 if (rc == -EDQUOT || rc == -EINPROGRESS)
1828 gid = i_gid_read(obj->oo_inode);
1829 qi->lqi_type = GRPQUOTA;
1830 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
1832 /* inode accounting */
1833 qi->lqi_is_blk = false;
1835 /* one more inode for the new gid ... */
1836 qi->lqi_id.qid_gid = attr->la_gid;
1838 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
1839 if (rc == -EDQUOT || rc == -EINPROGRESS)
1844 /* and one less inode for the current gid */
1845 qi->lqi_id.qid_gid = gid;
1847 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1848 if (rc == -EDQUOT || rc == -EINPROGRESS)
1853 /* block accounting */
1854 qi->lqi_is_blk = true;
1856 /* more blocks for the new gid ... */
1857 qi->lqi_id.qid_gid = attr->la_gid;
1858 qi->lqi_space = bspace;
1859 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1860 if (rc == -EDQUOT || rc == -EINPROGRESS)
1865 /* and finally less blocks for the current gid */
1866 qi->lqi_id.qid_gid = gid;
1867 qi->lqi_space = -bspace;
1868 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1869 if (rc == -EDQUOT || rc == -EINPROGRESS)
1878 static int osd_inode_setattr(const struct lu_env *env,
1879 struct inode *inode, const struct lu_attr *attr)
1881 __u64 bits = attr->la_valid;
1883 /* Only allow set size for regular file */
1884 if (!S_ISREG(inode->i_mode))
1885 bits &= ~(LA_SIZE | LA_BLOCKS);
1890 if (bits & LA_ATIME)
1891 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1892 if (bits & LA_CTIME)
1893 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1894 if (bits & LA_MTIME)
1895 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1896 if (bits & LA_SIZE) {
1897 LDISKFS_I(inode)->i_disksize = attr->la_size;
1898 i_size_write(inode, attr->la_size);
1902 /* OSD should not change "i_blocks" which is used by quota.
1903 * "i_blocks" should be changed by ldiskfs only. */
1904 if (bits & LA_BLOCKS)
1905 inode->i_blocks = attr->la_blocks;
1908 inode->i_mode = (inode->i_mode & S_IFMT) |
1909 (attr->la_mode & ~S_IFMT);
1911 i_uid_write(inode, attr->la_uid);
1913 i_gid_write(inode, attr->la_gid);
1914 if (bits & LA_NLINK)
1915 set_nlink(inode, attr->la_nlink);
1917 inode->i_rdev = attr->la_rdev;
1919 if (bits & LA_FLAGS) {
1920 /* always keep S_NOCMTIME */
1921 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1927 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
1929 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
1930 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
1934 ll_vfs_dq_init(inode);
1936 if (attr->la_valid & LA_UID)
1937 iattr.ia_valid |= ATTR_UID;
1938 if (attr->la_valid & LA_GID)
1939 iattr.ia_valid |= ATTR_GID;
1940 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
1941 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
1943 rc = ll_vfs_dq_transfer(inode, &iattr);
1945 CERROR("%s: quota transfer failed: rc = %d. Is quota "
1946 "enforcement enabled on the ldiskfs "
1947 "filesystem?\n", inode->i_sb->s_id, rc);
1954 static int osd_attr_set(const struct lu_env *env,
1955 struct dt_object *dt,
1956 const struct lu_attr *attr,
1957 struct thandle *handle,
1958 struct lustre_capa *capa)
1960 struct osd_object *obj = osd_dt_obj(dt);
1961 struct inode *inode;
1964 LASSERT(handle != NULL);
1965 LASSERT(dt_object_exists(dt));
1966 LASSERT(!dt_object_remote(dt));
1967 LASSERT(osd_invariant(obj));
1969 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1972 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
1974 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING)) {
1975 struct osd_thread_info *oti = osd_oti_get(env);
1976 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
1977 struct lu_fid *fid1 = &oti->oti_fid;
1978 struct osd_inode_id *id = &oti->oti_id;
1979 struct iam_path_descr *ipd;
1980 struct iam_container *bag;
1981 struct osd_thandle *oh;
1984 fid_cpu_to_be(fid1, fid0);
1985 memset(id, 1, sizeof(*id));
1986 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
1987 fid0)->oi_dir.od_container;
1988 ipd = osd_idx_ipd_get(env, bag);
1989 if (unlikely(ipd == NULL))
1992 oh = container_of0(handle, struct osd_thandle, ot_super);
1993 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
1994 (const struct iam_rec *)id, ipd);
1995 osd_ipd_put(env, bag, ipd);
1996 return(rc > 0 ? 0 : rc);
1999 inode = obj->oo_inode;
2001 rc = osd_quota_transfer(inode, attr);
2005 spin_lock(&obj->oo_guard);
2006 rc = osd_inode_setattr(env, inode, attr);
2007 spin_unlock(&obj->oo_guard);
2010 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2014 struct dentry *osd_child_dentry_get(const struct lu_env *env,
2015 struct osd_object *obj,
2016 const char *name, const int namelen)
2018 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2021 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2022 umode_t mode, struct dt_allocation_hint *hint,
2026 struct osd_device *osd = osd_obj2dev(obj);
2027 struct osd_thandle *oth;
2028 struct dt_object *parent = NULL;
2029 struct inode *inode;
2031 LINVRNT(osd_invariant(obj));
2032 LASSERT(obj->oo_inode == NULL);
2033 LASSERT(obj->oo_hl_head == NULL);
2035 if (S_ISDIR(mode) && ldiskfs_pdo) {
2036 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2037 if (obj->oo_hl_head == NULL)
2041 oth = container_of(th, struct osd_thandle, ot_super);
2042 LASSERT(oth->ot_handle->h_transaction != NULL);
2044 if (hint && hint->dah_parent)
2045 parent = hint->dah_parent;
2047 inode = ldiskfs_create_inode(oth->ot_handle,
2048 parent ? osd_dt_obj(parent)->oo_inode :
2049 osd_sb(osd)->s_root->d_inode,
2051 if (!IS_ERR(inode)) {
2052 /* Do not update file c/mtime in ldiskfs.
2053 * NB: don't need any lock because no contention at this
2055 inode->i_flags |= S_NOCMTIME;
2057 /* For new created object, it must be consistent,
2058 * and it is unnecessary to scrub against it. */
2059 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2060 obj->oo_inode = inode;
2063 if (obj->oo_hl_head != NULL) {
2064 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2065 obj->oo_hl_head = NULL;
2067 result = PTR_ERR(inode);
2069 LINVRNT(osd_invariant(obj));
2077 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2078 struct lu_attr *attr,
2079 struct dt_allocation_hint *hint,
2080 struct dt_object_format *dof,
2084 struct osd_thandle *oth;
2085 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
2087 LASSERT(S_ISDIR(attr->la_mode));
2089 oth = container_of(th, struct osd_thandle, ot_super);
2090 LASSERT(oth->ot_handle->h_transaction != NULL);
2091 result = osd_mkfile(info, obj, mode, hint, th);
2096 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2097 struct lu_attr *attr,
2098 struct dt_allocation_hint *hint,
2099 struct dt_object_format *dof,
2103 struct osd_thandle *oth;
2104 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2106 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2108 LASSERT(S_ISREG(attr->la_mode));
2110 oth = container_of(th, struct osd_thandle, ot_super);
2111 LASSERT(oth->ot_handle->h_transaction != NULL);
2113 result = osd_mkfile(info, obj, mode, hint, th);
2115 LASSERT(obj->oo_inode != NULL);
2116 if (feat->dif_flags & DT_IND_VARKEY)
2117 result = iam_lvar_create(obj->oo_inode,
2118 feat->dif_keysize_max,
2120 feat->dif_recsize_max,
2123 result = iam_lfix_create(obj->oo_inode,
2124 feat->dif_keysize_max,
2126 feat->dif_recsize_max,
2133 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2134 struct lu_attr *attr,
2135 struct dt_allocation_hint *hint,
2136 struct dt_object_format *dof,
2139 LASSERT(S_ISREG(attr->la_mode));
2140 return osd_mkfile(info, obj, (attr->la_mode &
2141 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2144 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2145 struct lu_attr *attr,
2146 struct dt_allocation_hint *hint,
2147 struct dt_object_format *dof,
2150 LASSERT(S_ISLNK(attr->la_mode));
2151 return osd_mkfile(info, obj, (attr->la_mode &
2152 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2155 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2156 struct lu_attr *attr,
2157 struct dt_allocation_hint *hint,
2158 struct dt_object_format *dof,
2161 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2164 LINVRNT(osd_invariant(obj));
2165 LASSERT(obj->oo_inode == NULL);
2166 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2167 S_ISFIFO(mode) || S_ISSOCK(mode));
2169 result = osd_mkfile(info, obj, mode, hint, th);
2171 LASSERT(obj->oo_inode != NULL);
2173 * This inode should be marked dirty for i_rdev. Currently
2174 * that is done in the osd_attr_init().
2176 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
2179 LINVRNT(osd_invariant(obj));
2183 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2185 struct dt_allocation_hint *hint,
2186 struct dt_object_format *dof,
2189 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2191 osd_obj_type_f result;
2207 result = osd_mk_index;
2218 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
2219 struct dt_object *parent, struct dt_object *child,
2224 ah->dah_parent = parent;
2225 ah->dah_mode = child_mode;
2228 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
2229 struct lu_attr *attr, struct dt_object_format *dof)
2231 struct inode *inode = obj->oo_inode;
2232 __u64 valid = attr->la_valid;
2235 attr->la_valid &= ~(LA_TYPE | LA_MODE);
2237 if (dof->dof_type != DFT_NODE)
2238 attr->la_valid &= ~LA_RDEV;
2239 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
2240 attr->la_valid &= ~LA_ATIME;
2241 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
2242 attr->la_valid &= ~LA_CTIME;
2243 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
2244 attr->la_valid &= ~LA_MTIME;
2246 result = osd_quota_transfer(inode, attr);
2250 if (attr->la_valid != 0) {
2251 result = osd_inode_setattr(info->oti_env, inode, attr);
2253 * The osd_inode_setattr() should always succeed here. The
2254 * only error that could be returned is EDQUOT when we are
2255 * trying to change the UID or GID of the inode. However, this
2256 * should not happen since quota enforcement is no longer
2257 * enabled on ldiskfs (lquota takes care of it).
2259 LASSERTF(result == 0, "%d\n", result);
2260 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2263 attr->la_valid = valid;
2267 * Helper function for osd_object_create()
2269 * \retval 0, on success
2271 static int __osd_object_create(struct osd_thread_info *info,
2272 struct osd_object *obj, struct lu_attr *attr,
2273 struct dt_allocation_hint *hint,
2274 struct dt_object_format *dof,
2280 /* we drop umask so that permissions we pass are not affected */
2281 umask = current->fs->umask;
2282 current->fs->umask = 0;
2284 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
2287 osd_attr_init(info, obj, attr, dof);
2288 osd_object_init0(obj);
2290 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
2291 unlock_new_inode(obj->oo_inode);
2294 /* restore previous umask value */
2295 current->fs->umask = umask;
2301 * Helper function for osd_object_create()
2303 * \retval 0, on success
2305 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
2306 const struct lu_fid *fid, struct thandle *th)
2308 struct osd_thread_info *info = osd_oti_get(env);
2309 struct osd_inode_id *id = &info->oti_id;
2310 struct osd_device *osd = osd_obj2dev(obj);
2311 struct osd_thandle *oh;
2313 LASSERT(obj->oo_inode != NULL);
2315 oh = container_of0(th, struct osd_thandle, ot_super);
2316 LASSERT(oh->ot_handle);
2318 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
2319 return osd_oi_insert(info, osd, fid, id, oh->ot_handle, OI_CHECK_FLD);
2322 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
2323 obd_seq seq, struct lu_seq_range *range)
2325 struct seq_server_site *ss = osd_seq_site(osd);
2327 if (fid_seq_is_idif(seq)) {
2328 fld_range_set_ost(range);
2329 range->lsr_index = idif_ost_idx(seq);
2333 if (!fid_seq_in_fldb(seq)) {
2334 fld_range_set_mdt(range);
2336 /* FIXME: If ss is NULL, it suppose not get lsr_index
2338 range->lsr_index = ss->ss_node_id;
2342 LASSERT(ss != NULL);
2343 fld_range_set_any(range);
2344 /* OSD will only do local fld lookup */
2345 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
2349 * Concurrency: no external locking is necessary.
2351 static int osd_declare_object_create(const struct lu_env *env,
2352 struct dt_object *dt,
2353 struct lu_attr *attr,
2354 struct dt_allocation_hint *hint,
2355 struct dt_object_format *dof,
2356 struct thandle *handle)
2358 struct osd_thandle *oh;
2362 LASSERT(handle != NULL);
2364 oh = container_of0(handle, struct osd_thandle, ot_super);
2365 LASSERT(oh->ot_handle == NULL);
2367 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
2368 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
2369 /* Reuse idle OI block may cause additional one OI block
2371 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2372 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
2374 /* If this is directory, then we expect . and .. to be inserted as
2375 * well. The one directory block always needs to be created for the
2376 * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
2377 * block), there is no danger of needing a tree for the first block.
2379 if (attr && S_ISDIR(attr->la_mode)) {
2380 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2381 osd_dto_credits_noquota[DTO_WRITE_BASE]);
2382 osd_trans_declare_op(env, oh, OSD_OT_INSERT, 0);
2388 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
2389 osd_dt_obj(dt), false, NULL, false);
2396 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
2397 struct lu_attr *attr,
2398 struct dt_allocation_hint *hint,
2399 struct dt_object_format *dof, struct thandle *th)
2401 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2402 struct osd_object *obj = osd_dt_obj(dt);
2403 struct osd_thread_info *info = osd_oti_get(env);
2407 LINVRNT(osd_invariant(obj));
2408 LASSERT(!dt_object_exists(dt));
2409 LASSERT(!dt_object_remote(dt));
2410 LASSERT(osd_write_locked(env, obj));
2411 LASSERT(th != NULL);
2413 if (unlikely(fid_is_acct(fid)))
2414 /* Quota files can't be created from the kernel any more,
2415 * 'tune2fs -O quota' will take care of creating them */
2418 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2419 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2421 result = __osd_object_create(info, obj, attr, hint, dof, th);
2423 result = __osd_oi_insert(env, obj, fid, th);
2425 LASSERT(ergo(result == 0,
2426 dt_object_exists(dt) && !dt_object_remote(dt)));
2428 LASSERT(osd_invariant(obj));
2433 * Called to destroy on-disk representation of the object
2435 * Concurrency: must be locked
2437 static int osd_declare_object_destroy(const struct lu_env *env,
2438 struct dt_object *dt,
2441 struct osd_object *obj = osd_dt_obj(dt);
2442 struct inode *inode = obj->oo_inode;
2443 struct osd_thandle *oh;
2447 oh = container_of0(th, struct osd_thandle, ot_super);
2448 LASSERT(oh->ot_handle == NULL);
2451 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
2452 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
2453 /* Recycle idle OI leaf may cause additional three OI blocks
2455 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
2456 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
2457 /* one less inode */
2458 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2459 -1, oh, obj, false, NULL, false);
2462 /* data to be truncated */
2463 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2464 0, oh, obj, true, NULL, false);
2468 static int osd_object_destroy(const struct lu_env *env,
2469 struct dt_object *dt,
2472 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2473 struct osd_object *obj = osd_dt_obj(dt);
2474 struct inode *inode = obj->oo_inode;
2475 struct osd_device *osd = osd_obj2dev(obj);
2476 struct osd_thandle *oh;
2480 oh = container_of0(th, struct osd_thandle, ot_super);
2481 LASSERT(oh->ot_handle);
2483 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2485 if (unlikely(fid_is_acct(fid)))
2488 if (S_ISDIR(inode->i_mode)) {
2489 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
2490 inode->i_nlink == 2);
2491 /* it will check/delete the inode from remote parent,
2492 * how to optimize it? unlink performance impaction XXX */
2493 result = osd_delete_from_remote_parent(env, osd, obj, oh);
2494 if (result != 0 && result != -ENOENT) {
2495 CERROR("%s: delete inode "DFID": rc = %d\n",
2496 osd_name(osd), PFID(fid), result);
2498 spin_lock(&obj->oo_guard);
2500 spin_unlock(&obj->oo_guard);
2501 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2504 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
2506 result = osd_oi_delete(osd_oti_get(env), osd, fid, oh->ot_handle,
2509 /* XXX: add to ext3 orphan list */
2510 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2512 /* not needed in the cache anymore */
2513 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2519 * Put the fid into lustre_mdt_attrs, and then place the structure
2520 * inode's ea. This fid should not be altered during the life time
2523 * \retval +ve, on success
2524 * \retval -ve, on error
2526 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2528 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
2529 const struct lu_fid *fid, __u32 compat, __u32 incompat)
2531 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
2535 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
2538 lustre_lma_init(lma, fid, compat, incompat);
2539 lustre_lma_swab(lma);
2541 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma, sizeof(*lma),
2543 /* LMA may already exist, but we need to check that all the
2544 * desired compat/incompat flags have been added. */
2545 if (unlikely(rc == -EEXIST)) {
2546 if (compat == 0 && incompat == 0)
2549 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
2550 XATTR_NAME_LMA, info->oti_mdt_attrs_old,
2555 lustre_lma_swab(lma);
2556 if (!(~lma->lma_compat & compat) &&
2557 !(~lma->lma_incompat & incompat))
2560 lma->lma_compat |= compat;
2561 lma->lma_incompat |= incompat;
2562 lustre_lma_swab(lma);
2563 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
2564 sizeof(*lma), XATTR_REPLACE);
2571 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2572 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2573 * To have compatilibility with 1.8 ldiskfs driver we need to have
2574 * magic number at start of fid data.
2575 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2578 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2579 const struct lu_fid *fid)
2581 if (!fid_is_namespace_visible(fid) ||
2582 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
2583 param->edp_magic = 0;
2587 param->edp_magic = LDISKFS_LUFID_MAGIC;
2588 param->edp_len = sizeof(struct lu_fid) + 1;
2589 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
2593 * Try to read the fid from inode ea into dt_rec.
2595 * \param fid object fid.
2597 * \retval 0 on success
2599 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2600 __u32 ino, struct lu_fid *fid,
2601 struct osd_inode_id *id)
2603 struct osd_thread_info *info = osd_oti_get(env);
2604 struct inode *inode;
2607 osd_id_gen(id, ino, OSD_OII_NOGEN);
2608 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2610 RETURN(PTR_ERR(inode));
2616 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
2618 struct inode *parent_dir,
2619 const struct lu_fid *dot_fid,
2620 const struct lu_fid *dot_dot_fid,
2621 struct osd_thandle *oth)
2623 struct ldiskfs_dentry_param *dot_ldp;
2624 struct ldiskfs_dentry_param *dot_dot_ldp;
2626 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
2627 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
2629 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
2630 dot_ldp->edp_magic = 0;
2631 return ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
2632 dir, dot_ldp, dot_dot_ldp);
2636 * Create an local agent inode for remote entry
2638 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
2639 struct osd_device *osd,
2640 struct osd_object *pobj,
2641 const struct lu_fid *fid,
2645 struct osd_thread_info *info = osd_oti_get(env);
2646 struct inode *local;
2647 struct osd_thandle *oh;
2652 oh = container_of(th, struct osd_thandle, ot_super);
2653 LASSERT(oh->ot_handle->h_transaction != NULL);
2655 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
2656 if (IS_ERR(local)) {
2657 CERROR("%s: create local error %d\n", osd_name(osd),
2658 (int)PTR_ERR(local));
2662 /* Set special LMA flag for local agent inode */
2663 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
2665 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
2666 osd_name(osd), PFID(fid), rc);
2667 RETURN(ERR_PTR(rc));
2673 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
2674 lu_object_fid(&pobj->oo_dt.do_lu),
2677 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
2678 osd_name(osd), PFID(fid), rc);
2679 RETURN(ERR_PTR(rc));
2686 * Delete local agent inode for remote entry
2688 static int osd_delete_local_agent_inode(const struct lu_env *env,
2689 struct osd_device *osd,
2690 const struct lu_fid *fid,
2691 __u32 ino, struct osd_thandle *oh)
2693 struct osd_thread_info *oti = osd_oti_get(env);
2694 struct osd_inode_id *id = &oti->oti_id;
2695 struct inode *inode;
2698 id->oii_ino = le32_to_cpu(ino);
2699 id->oii_gen = OSD_OII_NOGEN;
2700 inode = osd_iget(oti, osd, id);
2701 if (IS_ERR(inode)) {
2702 CERROR("%s: iget error "DFID" id %u:%u\n", osd_name(osd),
2703 PFID(fid), id->oii_ino, id->oii_gen);
2704 RETURN(PTR_ERR(inode));
2708 mark_inode_dirty(inode);
2709 CDEBUG(D_INODE, "%s: delete remote inode "DFID" %lu\n",
2710 osd_name(osd), PFID(fid), inode->i_ino);
2716 * OSD layer object create function for interoperability mode (b11826).
2717 * This is mostly similar to osd_object_create(). Only difference being, fid is
2718 * inserted into inode ea here.
2720 * \retval 0, on success
2721 * \retval -ve, on error
2723 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
2724 struct lu_attr *attr,
2725 struct dt_allocation_hint *hint,
2726 struct dt_object_format *dof,
2729 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2730 struct osd_object *obj = osd_dt_obj(dt);
2731 struct osd_thread_info *info = osd_oti_get(env);
2736 LASSERT(osd_invariant(obj));
2737 LASSERT(!dt_object_exists(dt));
2738 LASSERT(!dt_object_remote(dt));
2739 LASSERT(osd_write_locked(env, obj));
2740 LASSERT(th != NULL);
2742 if (unlikely(fid_is_acct(fid)))
2743 /* Quota files can't be created from the kernel any more,
2744 * 'tune2fs -O quota' will take care of creating them */
2747 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2748 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2750 result = __osd_object_create(info, obj, attr, hint, dof, th);
2752 result = osd_ea_fid_set(info, obj->oo_inode, fid,
2753 fid_is_on_ost(info, osd_obj2dev(obj),
2754 fid, OI_CHECK_FLD) ?
2755 LMAC_FID_ON_OST : 0, 0);
2758 result = __osd_oi_insert(env, obj, fid, th);
2760 LASSERT(ergo(result == 0,
2761 dt_object_exists(dt) && !dt_object_remote(dt)));
2762 LINVRNT(osd_invariant(obj));
2766 static int osd_declare_object_ref_add(const struct lu_env *env,
2767 struct dt_object *dt,
2768 struct thandle *handle)
2770 struct osd_thandle *oh;
2772 /* it's possible that object doesn't exist yet */
2773 LASSERT(handle != NULL);
2775 oh = container_of0(handle, struct osd_thandle, ot_super);
2776 LASSERT(oh->ot_handle == NULL);
2778 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
2779 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2785 * Concurrency: @dt is write locked.
2787 static int osd_object_ref_add(const struct lu_env *env,
2788 struct dt_object *dt, struct thandle *th)
2790 struct osd_object *obj = osd_dt_obj(dt);
2791 struct inode *inode = obj->oo_inode;
2792 struct osd_thandle *oh;
2795 LINVRNT(osd_invariant(obj));
2796 LASSERT(dt_object_exists(dt));
2797 LASSERT(!dt_object_remote(dt));
2798 LASSERT(osd_write_locked(env, obj));
2799 LASSERT(th != NULL);
2801 oh = container_of0(th, struct osd_thandle, ot_super);
2802 LASSERT(oh->ot_handle != NULL);
2804 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
2806 CDEBUG(D_INODE, DFID" increase nlink %d\n",
2807 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
2809 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
2810 * (65000) subdirectories by storing "1" in i_nlink if the link count
2811 * would otherwise overflow. Directory tranversal tools understand
2812 * that (st_nlink == 1) indicates that the filesystem dose not track
2813 * hard links count on the directory, and will not abort subdirectory
2814 * scanning early once (st_nlink - 2) subdirs have been found.
2816 * This also has to properly handle the case of inodes with nlink == 0
2817 * in case they are being linked into the PENDING directory
2819 spin_lock(&obj->oo_guard);
2820 if (unlikely(inode->i_nlink == 0))
2821 /* inc_nlink from 0 may cause WARN_ON */
2822 set_nlink(inode, 1);
2824 ldiskfs_inc_count(oh->ot_handle, inode);
2825 if (!S_ISDIR(inode->i_mode))
2826 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
2828 spin_unlock(&obj->oo_guard);
2830 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2831 LINVRNT(osd_invariant(obj));
2836 static int osd_declare_object_ref_del(const struct lu_env *env,
2837 struct dt_object *dt,
2838 struct thandle *handle)
2840 struct osd_thandle *oh;
2842 LASSERT(dt_object_exists(dt));
2843 LASSERT(!dt_object_remote(dt));
2844 LASSERT(handle != NULL);
2846 oh = container_of0(handle, struct osd_thandle, ot_super);
2847 LASSERT(oh->ot_handle == NULL);
2849 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
2850 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2856 * Concurrency: @dt is write locked.
2858 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2861 struct osd_object *obj = osd_dt_obj(dt);
2862 struct inode *inode = obj->oo_inode;
2863 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
2864 struct osd_thandle *oh;
2866 LINVRNT(osd_invariant(obj));
2867 LASSERT(dt_object_exists(dt));
2868 LASSERT(!dt_object_remote(dt));
2869 LASSERT(osd_write_locked(env, obj));
2870 LASSERT(th != NULL);
2872 oh = container_of0(th, struct osd_thandle, ot_super);
2873 LASSERT(oh->ot_handle != NULL);
2875 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
2877 spin_lock(&obj->oo_guard);
2878 /* That can be result of upgrade from old Lustre version and
2879 * applied only to local files. Just skip this ref_del call.
2880 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
2881 if (inode->i_nlink == 0) {
2882 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
2883 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
2884 ", maybe an upgraded file? (LU-3915)\n",
2885 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
2886 spin_unlock(&obj->oo_guard);
2890 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
2891 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
2893 ldiskfs_dec_count(oh->ot_handle, inode);
2894 spin_unlock(&obj->oo_guard);
2896 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2897 LINVRNT(osd_invariant(obj));
2903 * Get the 64-bit version for an inode.
2905 static int osd_object_version_get(const struct lu_env *env,
2906 struct dt_object *dt, dt_obj_version_t *ver)
2908 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2910 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2911 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2912 *ver = LDISKFS_I(inode)->i_fs_version;
2917 * Concurrency: @dt is read locked.
2919 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2920 struct lu_buf *buf, const char *name,
2921 struct lustre_capa *capa)
2923 struct osd_object *obj = osd_dt_obj(dt);
2924 struct inode *inode = obj->oo_inode;
2925 struct osd_thread_info *info = osd_oti_get(env);
2926 struct dentry *dentry = &info->oti_obj_dentry;
2928 /* version get is not real XATTR but uses xattr API */
2929 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2930 /* for version we are just using xattr API but change inode
2932 if (buf->lb_len == 0)
2933 return sizeof(dt_obj_version_t);
2935 if (buf->lb_len < sizeof(dt_obj_version_t))
2938 osd_object_version_get(env, dt, buf->lb_buf);
2940 return sizeof(dt_obj_version_t);
2943 LASSERT(dt_object_exists(dt));
2944 LASSERT(!dt_object_remote(dt));
2945 LASSERT(inode->i_op != NULL);
2946 LASSERT(inode->i_op->getxattr != NULL);
2948 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2951 return __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
2955 static int osd_declare_xattr_set(const struct lu_env *env,
2956 struct dt_object *dt,
2957 const struct lu_buf *buf, const char *name,
2958 int fl, struct thandle *handle)
2960 struct osd_thandle *oh;
2962 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
2964 LASSERT(handle != NULL);
2966 oh = container_of0(handle, struct osd_thandle, ot_super);
2967 LASSERT(oh->ot_handle == NULL);
2969 /* optimistic optimization: LMA is set first and usually fit inode */
2970 if (strcmp(name, XATTR_NAME_LMA) == 0) {
2971 if (dt_object_exists(dt))
2975 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2978 credits = osd_dto_credits_noquota[DTO_XATTR_SET];
2979 if (buf && buf->lb_len > sb->s_blocksize) {
2980 credits *= (buf->lb_len + sb->s_blocksize - 1) >>
2981 sb->s_blocksize_bits;
2984 * xattr set may involve inode quota change, reserve credits for
2985 * dquot_initialize()
2987 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
2990 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
2996 * Set the 64-bit version for object
2998 static void osd_object_version_set(const struct lu_env *env,
2999 struct dt_object *dt,
3000 dt_obj_version_t *new_version)
3002 struct inode *inode = osd_dt_obj(dt)->oo_inode;
3004 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
3005 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3007 LDISKFS_I(inode)->i_fs_version = *new_version;
3008 /** Version is set after all inode operations are finished,
3009 * so we should mark it dirty here */
3010 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3014 * Concurrency: @dt is write locked.
3016 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
3017 const struct lu_buf *buf, const char *name, int fl,
3018 struct thandle *handle, struct lustre_capa *capa)
3020 struct osd_object *obj = osd_dt_obj(dt);
3021 struct inode *inode = obj->oo_inode;
3022 struct osd_thread_info *info = osd_oti_get(env);
3026 LASSERT(handle != NULL);
3028 /* version set is not real XATTR */
3029 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3030 /* for version we are just using xattr API but change inode
3032 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
3033 osd_object_version_set(env, dt, buf->lb_buf);
3034 return sizeof(dt_obj_version_t);
3037 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
3040 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
3041 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
3043 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3044 if (fl & LU_XATTR_REPLACE)
3045 fs_flags |= XATTR_REPLACE;
3047 if (fl & LU_XATTR_CREATE)
3048 fs_flags |= XATTR_CREATE;
3050 if (strcmp(name, XATTR_NAME_LMV) == 0) {
3051 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
3054 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
3058 lma->lma_incompat |= LMAI_STRIPED;
3059 lustre_lma_swab(lma);
3060 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3061 sizeof(*lma), XATTR_REPLACE);
3066 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_OVERFLOW) &&
3067 strcmp(name, XATTR_NAME_LINK) == 0)
3070 return __osd_xattr_set(info, inode, name, buf->lb_buf, buf->lb_len,
3075 * Concurrency: @dt is read locked.
3077 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
3078 struct lu_buf *buf, struct lustre_capa *capa)
3080 struct osd_object *obj = osd_dt_obj(dt);
3081 struct inode *inode = obj->oo_inode;
3082 struct osd_thread_info *info = osd_oti_get(env);
3083 struct dentry *dentry = &info->oti_obj_dentry;
3085 LASSERT(dt_object_exists(dt));
3086 LASSERT(!dt_object_remote(dt));
3087 LASSERT(inode->i_op != NULL);
3088 LASSERT(inode->i_op->listxattr != NULL);
3090 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
3093 dentry->d_inode = inode;
3094 dentry->d_sb = inode->i_sb;
3095 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
3098 static int osd_declare_xattr_del(const struct lu_env *env,
3099 struct dt_object *dt, const char *name,
3100 struct thandle *handle)
3102 struct osd_thandle *oh;
3103 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3105 LASSERT(dt_object_exists(dt));
3106 LASSERT(!dt_object_remote(dt));
3107 LASSERT(handle != NULL);
3109 oh = container_of0(handle, struct osd_thandle, ot_super);
3110 LASSERT(oh->ot_handle == NULL);
3112 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
3113 osd_dto_credits_noquota[DTO_XATTR_SET]);
3115 * xattr del may involve inode quota change, reserve credits for
3116 * dquot_initialize()
3118 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
3124 * Concurrency: @dt is write locked.
3126 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
3127 const char *name, struct thandle *handle,
3128 struct lustre_capa *capa)
3130 struct osd_object *obj = osd_dt_obj(dt);
3131 struct inode *inode = obj->oo_inode;
3132 struct osd_thread_info *info = osd_oti_get(env);
3133 struct dentry *dentry = &info->oti_obj_dentry;
3136 LASSERT(dt_object_exists(dt));
3137 LASSERT(!dt_object_remote(dt));
3138 LASSERT(inode->i_op != NULL);
3139 LASSERT(inode->i_op->removexattr != NULL);
3140 LASSERT(handle != NULL);
3142 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
3145 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3147 ll_vfs_dq_init(inode);
3148 dentry->d_inode = inode;
3149 dentry->d_sb = inode->i_sb;
3150 rc = inode->i_op->removexattr(dentry, name);
3154 static struct obd_capa *osd_capa_get(const struct lu_env *env,
3155 struct dt_object *dt,
3156 struct lustre_capa *old, __u64 opc)
3158 struct osd_thread_info *info = osd_oti_get(env);
3159 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3160 struct osd_object *obj = osd_dt_obj(dt);
3161 struct osd_device *osd = osd_obj2dev(obj);
3162 struct lustre_capa_key *key = &info->oti_capa_key;
3163 struct lustre_capa *capa = &info->oti_capa;
3164 struct obd_capa *oc;
3165 struct lu_capainfo *lci;
3169 if (!osd->od_fl_capa)
3170 RETURN(ERR_PTR(-ENOENT));
3172 LASSERT(dt_object_exists(dt));
3173 LASSERT(!dt_object_remote(dt));
3174 LINVRNT(osd_invariant(obj));
3176 /* renewal sanity check */
3177 if (old && osd_object_auth(env, dt, old, opc))
3178 RETURN(ERR_PTR(-EACCES));
3180 lci = lu_capainfo_get(env);
3181 if (unlikely(lci == NULL))
3182 RETURN(ERR_PTR(-ENOENT));
3184 switch (lci->lci_auth) {
3188 capa->lc_uid = i_uid_read(obj->oo_inode);
3189 capa->lc_gid = i_gid_read(obj->oo_inode);
3190 capa->lc_flags = LC_ID_PLAIN;
3192 case LC_ID_CONVERT: {
3195 s[0] = i_uid_read(obj->oo_inode);
3196 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
3197 s[2] = i_uid_read(obj->oo_inode);
3198 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
3199 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
3201 RETURN(ERR_PTR(rc));
3203 capa->lc_uid = ((__u64)d[1] << 32) | d[0];
3204 capa->lc_gid = ((__u64)d[3] << 32) | d[2];
3205 capa->lc_flags = LC_ID_CONVERT;
3209 RETURN(ERR_PTR(-EINVAL));
3212 capa->lc_fid = *fid;
3214 capa->lc_flags |= osd->od_capa_alg << 24;
3215 capa->lc_timeout = osd->od_capa_timeout;
3216 capa->lc_expiry = 0;
3218 oc = capa_lookup(osd->od_capa_hash, capa, 1);
3220 LASSERT(!capa_is_expired(oc));
3224 spin_lock(&capa_lock);
3225 *key = osd->od_capa_keys[1];
3226 spin_unlock(&capa_lock);
3228 capa->lc_keyid = key->lk_keyid;
3229 capa->lc_expiry = cfs_time_current_sec() + osd->od_capa_timeout;
3231 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
3233 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
3234 RETURN(ERR_PTR(rc));
3237 oc = capa_add(osd->od_capa_hash, capa);
3241 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
3242 __u64 start, __u64 end)
3244 struct osd_object *obj = osd_dt_obj(dt);
3245 struct inode *inode = obj->oo_inode;
3246 struct osd_thread_info *info = osd_oti_get(env);
3247 struct dentry *dentry = &info->oti_obj_dentry;
3248 struct file *file = &info->oti_file;
3253 dentry->d_inode = inode;
3254 dentry->d_sb = inode->i_sb;
3255 file->f_dentry = dentry;
3256 file->f_mapping = inode->i_mapping;
3257 file->f_op = inode->i_fop;
3258 set_file_inode(file, inode);
3260 #ifdef HAVE_FILE_FSYNC_4ARGS
3261 rc = file->f_op->fsync(file, start, end, 0);
3262 #elif defined(HAVE_FILE_FSYNC_2ARGS)
3263 mutex_lock(&inode->i_mutex);
3264 rc = file->f_op->fsync(file, 0);
3265 mutex_unlock(&inode->i_mutex);
3267 mutex_lock(&inode->i_mutex);
3268 rc = file->f_op->fsync(file, dentry, 0);
3269 mutex_unlock(&inode->i_mutex);
3275 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
3278 struct osd_object *obj = osd_dt_obj(dt);
3281 *data = (void *)obj->oo_inode;
3289 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
3290 const struct dt_index_features *feat)
3292 struct iam_descr *descr;
3294 if (osd_object_is_root(o))
3295 return feat == &dt_directory_features;
3297 LASSERT(o->oo_dir != NULL);
3299 descr = o->oo_dir->od_container.ic_descr;
3300 if (feat == &dt_directory_features) {
3301 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
3307 feat->dif_keysize_min <= descr->id_key_size &&
3308 descr->id_key_size <= feat->dif_keysize_max &&
3309 feat->dif_recsize_min <= descr->id_rec_size &&
3310 descr->id_rec_size <= feat->dif_recsize_max &&
3311 !(feat->dif_flags & (DT_IND_VARKEY |
3312 DT_IND_VARREC | DT_IND_NONUNQ)) &&
3313 ergo(feat->dif_flags & DT_IND_UPDATE,
3314 1 /* XXX check that object (and file system) is
3319 static int osd_iam_container_init(const struct lu_env *env,
3320 struct osd_object *obj,
3321 struct osd_directory *dir)
3323 struct iam_container *bag = &dir->od_container;
3326 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
3330 result = iam_container_setup(bag);
3332 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
3334 iam_container_fini(bag);
3341 * Concurrency: no external locking is necessary.
3343 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
3344 const struct dt_index_features *feat)
3348 struct osd_object *obj = osd_dt_obj(dt);
3350 LINVRNT(osd_invariant(obj));
3352 if (osd_object_is_root(obj)) {
3353 dt->do_index_ops = &osd_index_ea_ops;
3355 } else if (feat == &dt_directory_features) {
3356 dt->do_index_ops = &osd_index_ea_ops;
3357 if (obj->oo_inode != NULL && S_ISDIR(obj->oo_inode->i_mode))
3362 } else if (unlikely(feat == &dt_otable_features)) {
3363 dt->do_index_ops = &osd_otable_ops;
3365 } else if (unlikely(feat == &dt_acct_features)) {
3366 dt->do_index_ops = &osd_acct_index_ops;
3369 } else if (!osd_has_index(obj)) {
3370 struct osd_directory *dir;
3375 spin_lock(&obj->oo_guard);
3376 if (obj->oo_dir == NULL)
3380 * Concurrent thread allocated container data.
3383 spin_unlock(&obj->oo_guard);
3385 * Now, that we have container data, serialize its
3388 down_write(&obj->oo_ext_idx_sem);
3390 * recheck under lock.
3392 if (!osd_has_index(obj))
3393 result = osd_iam_container_init(env, obj,
3397 up_write(&obj->oo_ext_idx_sem);
3405 if (result == 0 && skip_iam == 0) {
3406 if (!osd_iam_index_probe(env, obj, feat))
3409 LINVRNT(osd_invariant(obj));
3411 if (result == 0 && is_quota_glb_feat(feat) &&
3412 fid_seq(lu_object_fid(&dt->do_lu)) == FID_SEQ_QUOTA_GLB)
3413 result = osd_quota_migration(env, dt, feat);
3418 static int osd_otable_it_attr_get(const struct lu_env *env,
3419 struct dt_object *dt,
3420 struct lu_attr *attr,
3421 struct lustre_capa *capa)
3427 static const struct dt_object_operations osd_obj_ops = {
3428 .do_read_lock = osd_object_read_lock,
3429 .do_write_lock = osd_object_write_lock,
3430 .do_read_unlock = osd_object_read_unlock,
3431 .do_write_unlock = osd_object_write_unlock,
3432 .do_write_locked = osd_object_write_locked,
3433 .do_attr_get = osd_attr_get,
3434 .do_declare_attr_set = osd_declare_attr_set,
3435 .do_attr_set = osd_attr_set,
3436 .do_ah_init = osd_ah_init,
3437 .do_declare_create = osd_declare_object_create,
3438 .do_create = osd_object_create,
3439 .do_declare_destroy = osd_declare_object_destroy,
3440 .do_destroy = osd_object_destroy,
3441 .do_index_try = osd_index_try,
3442 .do_declare_ref_add = osd_declare_object_ref_add,
3443 .do_ref_add = osd_object_ref_add,
3444 .do_declare_ref_del = osd_declare_object_ref_del,
3445 .do_ref_del = osd_object_ref_del,
3446 .do_xattr_get = osd_xattr_get,
3447 .do_declare_xattr_set = osd_declare_xattr_set,
3448 .do_xattr_set = osd_xattr_set,
3449 .do_declare_xattr_del = osd_declare_xattr_del,
3450 .do_xattr_del = osd_xattr_del,
3451 .do_xattr_list = osd_xattr_list,
3452 .do_capa_get = osd_capa_get,
3453 .do_object_sync = osd_object_sync,
3454 .do_data_get = osd_data_get,
3458 * dt_object_operations for interoperability mode
3459 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
3461 static const struct dt_object_operations osd_obj_ea_ops = {
3462 .do_read_lock = osd_object_read_lock,
3463 .do_write_lock = osd_object_write_lock,
3464 .do_read_unlock = osd_object_read_unlock,
3465 .do_write_unlock = osd_object_write_unlock,
3466 .do_write_locked = osd_object_write_locked,
3467 .do_attr_get = osd_attr_get,
3468 .do_declare_attr_set = osd_declare_attr_set,
3469 .do_attr_set = osd_attr_set,
3470 .do_ah_init = osd_ah_init,
3471 .do_declare_create = osd_declare_object_create,
3472 .do_create = osd_object_ea_create,
3473 .do_declare_destroy = osd_declare_object_destroy,
3474 .do_destroy = osd_object_destroy,
3475 .do_index_try = osd_index_try,
3476 .do_declare_ref_add = osd_declare_object_ref_add,
3477 .do_ref_add = osd_object_ref_add,
3478 .do_declare_ref_del = osd_declare_object_ref_del,
3479 .do_ref_del = osd_object_ref_del,
3480 .do_xattr_get = osd_xattr_get,
3481 .do_declare_xattr_set = osd_declare_xattr_set,
3482 .do_xattr_set = osd_xattr_set,
3483 .do_declare_xattr_del = osd_declare_xattr_del,
3484 .do_xattr_del = osd_xattr_del,
3485 .do_xattr_list = osd_xattr_list,
3486 .do_capa_get = osd_capa_get,
3487 .do_object_sync = osd_object_sync,
3488 .do_data_get = osd_data_get,
3491 static const struct dt_object_operations osd_obj_otable_it_ops = {
3492 .do_attr_get = osd_otable_it_attr_get,
3493 .do_index_try = osd_index_try,
3496 static int osd_index_declare_iam_delete(const struct lu_env *env,
3497 struct dt_object *dt,
3498 const struct dt_key *key,
3499 struct thandle *handle)
3501 struct osd_thandle *oh;
3503 oh = container_of0(handle, struct osd_thandle, ot_super);
3504 LASSERT(oh->ot_handle == NULL);
3506 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3507 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3513 * delete a (key, value) pair from index \a dt specified by \a key
3515 * \param dt osd index object
3516 * \param key key for index
3517 * \param rec record reference
3518 * \param handle transaction handler
3521 * \retval -ve failure
3523 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
3524 const struct dt_key *key,
3525 struct thandle *handle,
3526 struct lustre_capa *capa)
3528 struct osd_thread_info *oti = osd_oti_get(env);
3529 struct osd_object *obj = osd_dt_obj(dt);
3530 struct osd_thandle *oh;
3531 struct iam_path_descr *ipd;
3532 struct iam_container *bag = &obj->oo_dir->od_container;
3536 LINVRNT(osd_invariant(obj));
3537 LASSERT(dt_object_exists(dt));
3538 LASSERT(!dt_object_remote(dt));
3539 LASSERT(bag->ic_object == obj->oo_inode);
3540 LASSERT(handle != NULL);
3542 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3545 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3547 ipd = osd_idx_ipd_get(env, bag);
3548 if (unlikely(ipd == NULL))
3551 oh = container_of0(handle, struct osd_thandle, ot_super);
3552 LASSERT(oh->ot_handle != NULL);
3553 LASSERT(oh->ot_handle->h_transaction != NULL);
3555 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3556 /* swab quota uid/gid provided by caller */
3557 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3558 key = (const struct dt_key *)&oti->oti_quota_id;
3561 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
3562 osd_ipd_put(env, bag, ipd);
3563 LINVRNT(osd_invariant(obj));
3567 static int osd_index_declare_ea_delete(const struct lu_env *env,
3568 struct dt_object *dt,
3569 const struct dt_key *key,
3570 struct thandle *handle)
3572 struct osd_thandle *oh;
3573 struct inode *inode;
3577 LASSERT(dt_object_exists(dt));
3578 LASSERT(!dt_object_remote(dt));
3579 LASSERT(handle != NULL);
3581 oh = container_of0(handle, struct osd_thandle, ot_super);
3582 LASSERT(oh->ot_handle == NULL);
3584 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3585 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3587 inode = osd_dt_obj(dt)->oo_inode;
3590 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3591 0, oh, osd_dt_obj(dt), true, NULL, false);
3595 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
3598 struct osd_fid_pack *rec;
3601 if (de->file_type & LDISKFS_DIRENT_LUFID) {
3602 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
3603 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
3608 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
3609 const struct lu_fid *fid)
3611 struct seq_server_site *ss = osd_seq_site(osd);
3614 /* FID seqs not in FLDB, must be local seq */
3615 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
3618 /* If FLD is not being initialized yet, it only happens during the
3619 * initialization, likely during mgs initialization, and we assume
3620 * this is local FID. */
3621 if (ss == NULL || ss->ss_server_fld == NULL)
3624 /* Only check the local FLDB here */
3625 if (osd_seq_exists(env, osd, fid_seq(fid)))
3632 * Index delete function for interoperability mode (b11826).
3633 * It will remove the directory entry added by osd_index_ea_insert().
3634 * This entry is needed to maintain name->fid mapping.
3636 * \param key, key i.e. file entry to be deleted
3638 * \retval 0, on success
3639 * \retval -ve, on error
3641 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
3642 const struct dt_key *key, struct thandle *handle,
3643 struct lustre_capa *capa)
3645 struct osd_object *obj = osd_dt_obj(dt);
3646 struct inode *dir = obj->oo_inode;
3647 struct dentry *dentry;
3648 struct osd_thandle *oh;
3649 struct ldiskfs_dir_entry_2 *de = NULL;
3650 struct buffer_head *bh;
3651 struct htree_lock *hlock = NULL;
3652 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
3653 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3657 LINVRNT(osd_invariant(obj));
3658 LASSERT(dt_object_exists(dt));
3659 LASSERT(!dt_object_remote(dt));
3660 LASSERT(handle != NULL);
3662 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3664 oh = container_of(handle, struct osd_thandle, ot_super);
3665 LASSERT(oh->ot_handle != NULL);
3666 LASSERT(oh->ot_handle->h_transaction != NULL);
3668 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3671 ll_vfs_dq_init(dir);
3672 dentry = osd_child_dentry_get(env, obj,
3673 (char *)key, strlen((char *)key));
3675 if (obj->oo_hl_head != NULL) {
3676 hlock = osd_oti_get(env)->oti_hlock;
3677 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3678 dir, LDISKFS_HLOCK_DEL);
3680 down_write(&obj->oo_ext_idx_sem);
3683 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
3687 /* If this is not the ".." entry, it might be a remote DNE
3688 * entry and we need to check if the FID is for a remote
3689 * MDT. If the FID is not in the directory entry (e.g.
3690 * upgraded 1.8 filesystem without dirdata enabled) then
3691 * we need to get the FID from the LMA. For a remote directory
3692 * there HAS to be an LMA, it cannot be an IGIF inode in this
3695 * Delete the entry before the agent inode in order to
3696 * simplify error handling. At worst an error after deleting
3697 * the entry first might leak the agent inode afterward. The
3698 * reverse would need filesystem abort in case of error deleting
3699 * the entry after the agent had been removed, or leave a
3700 * dangling entry pointing at a random inode. */
3701 if (strcmp((char *)key, dotdot) != 0) {
3702 LASSERT(de != NULL);
3703 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
3704 /* If Fid is not in dentry, try to get it from LMA */
3705 if (rc == -ENODATA) {
3706 struct osd_inode_id *id;
3707 struct inode *inode;
3709 /* Before trying to get fid from the inode,
3710 * check whether the inode is valid.
3712 * If the inode has been deleted, do not go
3713 * ahead to do osd_ea_fid_get, which will set
3714 * the inode to bad inode, which might cause
3715 * the inode to be deleted uncorrectly */
3716 inode = ldiskfs_iget(osd_sb(osd),
3717 le32_to_cpu(de->inode));
3718 if (IS_ERR(inode)) {
3719 CDEBUG(D_INODE, "%s: "DFID"get inode"
3720 "error.\n", osd_name(osd),
3722 rc = PTR_ERR(inode);
3724 if (likely(inode->i_nlink != 0)) {
3725 id = &osd_oti_get(env)->oti_id;
3726 rc = osd_ea_fid_get(env, obj,
3727 le32_to_cpu(de->inode),
3730 CDEBUG(D_INFO, "%s: %u "DFID
3733 le32_to_cpu(de->inode),
3741 unlikely(osd_remote_fid(env, osd, fid)))
3742 /* Need to delete agent inode */
3743 ino = le32_to_cpu(de->inode);
3745 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
3747 if (rc == 0 && unlikely(ino != 0)) {
3748 rc = osd_delete_local_agent_inode(env, osd, fid, ino,
3751 CERROR("%s: del local inode "DFID": rc = %d\n",
3752 osd_name(osd), PFID(fid), rc);
3758 ldiskfs_htree_unlock(hlock);
3760 up_write(&obj->oo_ext_idx_sem);
3765 /* For inode on the remote MDT, .. will point to
3766 * /Agent directory, Check whether it needs to delete
3767 * from agent directory */
3768 if (unlikely(strcmp((char *)key, dotdot) == 0)) {
3769 rc = osd_delete_from_remote_parent(env, osd_obj2dev(obj), obj,
3771 if (rc != 0 && rc != -ENOENT) {
3772 CERROR("%s: delete agent inode "DFID": rc = %d\n",
3773 osd_name(osd), PFID(fid), rc);
3783 LASSERT(osd_invariant(obj));
3788 * Lookup index for \a key and copy record to \a rec.
3790 * \param dt osd index object
3791 * \param key key for index
3792 * \param rec record reference
3794 * \retval +ve success : exact mach
3795 * \retval 0 return record with key not greater than \a key
3796 * \retval -ve failure
3798 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
3799 struct dt_rec *rec, const struct dt_key *key,
3800 struct lustre_capa *capa)
3802 struct osd_object *obj = osd_dt_obj(dt);
3803 struct iam_path_descr *ipd;
3804 struct iam_container *bag = &obj->oo_dir->od_container;
3805 struct osd_thread_info *oti = osd_oti_get(env);
3806 struct iam_iterator *it = &oti->oti_idx_it;
3807 struct iam_rec *iam_rec;
3811 LASSERT(osd_invariant(obj));
3812 LASSERT(dt_object_exists(dt));
3813 LASSERT(!dt_object_remote(dt));
3814 LASSERT(bag->ic_object == obj->oo_inode);
3816 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3819 ipd = osd_idx_ipd_get(env, bag);
3823 /* got ipd now we can start iterator. */
3824 iam_it_init(it, bag, 0, ipd);
3826 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3827 /* swab quota uid/gid provided by caller */
3828 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3829 key = (const struct dt_key *)&oti->oti_quota_id;
3832 rc = iam_it_get(it, (struct iam_key *)key);
3834 if (S_ISDIR(obj->oo_inode->i_mode))
3835 iam_rec = (struct iam_rec *)oti->oti_ldp;
3837 iam_rec = (struct iam_rec *) rec;
3839 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
3841 if (S_ISDIR(obj->oo_inode->i_mode))
3842 osd_fid_unpack((struct lu_fid *) rec,
3843 (struct osd_fid_pack *)iam_rec);
3844 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
3845 osd_quota_unpack(obj, rec);
3850 osd_ipd_put(env, bag, ipd);
3852 LINVRNT(osd_invariant(obj));
3857 static int osd_index_declare_iam_insert(const struct lu_env *env,
3858 struct dt_object *dt,
3859 const struct dt_rec *rec,
3860 const struct dt_key *key,
3861 struct thandle *handle)
3863 struct osd_thandle *oh;
3865 LASSERT(handle != NULL);
3867 oh = container_of0(handle, struct osd_thandle, ot_super);
3868 LASSERT(oh->ot_handle == NULL);
3870 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3871 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
3877 * Inserts (key, value) pair in \a dt index object.
3879 * \param dt osd index object
3880 * \param key key for index
3881 * \param rec record reference
3882 * \param th transaction handler
3885 * \retval -ve failure
3887 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
3888 const struct dt_rec *rec,
3889 const struct dt_key *key, struct thandle *th,
3890 struct lustre_capa *capa, int ignore_quota)
3892 struct osd_object *obj = osd_dt_obj(dt);
3893 struct iam_path_descr *ipd;
3894 struct osd_thandle *oh;
3895 struct iam_container *bag = &obj->oo_dir->od_container;
3896 struct osd_thread_info *oti = osd_oti_get(env);
3897 struct iam_rec *iam_rec;
3901 LINVRNT(osd_invariant(obj));
3902 LASSERT(dt_object_exists(dt));
3903 LASSERT(!dt_object_remote(dt));
3904 LASSERT(bag->ic_object == obj->oo_inode);
3905 LASSERT(th != NULL);
3907 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3910 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3912 ipd = osd_idx_ipd_get(env, bag);
3913 if (unlikely(ipd == NULL))
3916 oh = container_of0(th, struct osd_thandle, ot_super);
3917 LASSERT(oh->ot_handle != NULL);
3918 LASSERT(oh->ot_handle->h_transaction != NULL);
3919 if (S_ISDIR(obj->oo_inode->i_mode)) {
3920 iam_rec = (struct iam_rec *)oti->oti_ldp;
3921 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
3922 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3923 /* pack quota uid/gid */
3924 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3925 key = (const struct dt_key *)&oti->oti_quota_id;
3926 /* pack quota record */
3927 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
3928 iam_rec = (struct iam_rec *)rec;
3930 iam_rec = (struct iam_rec *)rec;
3933 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
3935 osd_ipd_put(env, bag, ipd);
3936 LINVRNT(osd_invariant(obj));
3941 * Calls ldiskfs_add_entry() to add directory entry
3942 * into the directory. This is required for
3943 * interoperability mode (b11826)
3945 * \retval 0, on success
3946 * \retval -ve, on error
3948 static int __osd_ea_add_rec(struct osd_thread_info *info,
3949 struct osd_object *pobj, struct inode *cinode,
3950 const char *name, const struct lu_fid *fid,
3951 struct htree_lock *hlock, struct thandle *th)
3953 struct ldiskfs_dentry_param *ldp;
3954 struct dentry *child;
3955 struct osd_thandle *oth;
3958 oth = container_of(th, struct osd_thandle, ot_super);
3959 LASSERT(oth->ot_handle != NULL);
3960 LASSERT(oth->ot_handle->h_transaction != NULL);
3961 LASSERT(pobj->oo_inode);
3963 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3964 if (unlikely(pobj->oo_inode ==
3965 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
3968 osd_get_ldiskfs_dirent_param(ldp, fid);
3969 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
3970 child->d_fsdata = (void *)ldp;
3971 ll_vfs_dq_init(pobj->oo_inode);
3972 rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
3973 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
3974 struct ldiskfs_dir_entry_2 *de;
3975 struct buffer_head *bh;
3978 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
3981 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
3984 if (S_ISDIR(cinode->i_mode))
3985 de->file_type = LDISKFS_DIRENT_LUFID |
3986 LDISKFS_FT_REG_FILE;
3988 de->file_type = LDISKFS_DIRENT_LUFID |
3990 ldiskfs_journal_dirty_metadata(oth->ot_handle,
4001 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
4002 * into the directory.Also sets flags into osd object to
4003 * indicate dot and dotdot are created. This is required for
4004 * interoperability mode (b11826)
4006 * \param dir directory for dot and dotdot fixup.
4007 * \param obj child object for linking
4009 * \retval 0, on success
4010 * \retval -ve, on error
4012 static int osd_add_dot_dotdot(struct osd_thread_info *info,
4013 struct osd_object *dir,
4014 struct inode *parent_dir, const char *name,
4015 const struct lu_fid *dot_fid,
4016 const struct lu_fid *dot_dot_fid,
4019 struct inode *inode = dir->oo_inode;
4020 struct osd_thandle *oth;
4023 oth = container_of(th, struct osd_thandle, ot_super);
4024 LASSERT(oth->ot_handle->h_transaction != NULL);
4025 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
4027 if (strcmp(name, dot) == 0) {
4028 if (dir->oo_compat_dot_created) {
4031 LASSERT(inode == parent_dir);
4032 dir->oo_compat_dot_created = 1;
4035 } else if (strcmp(name, dotdot) == 0) {
4036 if (!dir->oo_compat_dot_created)
4038 /* in case of rename, dotdot is already created */
4039 if (dir->oo_compat_dotdot_created) {
4040 return __osd_ea_add_rec(info, dir, parent_dir, name,
4041 dot_dot_fid, NULL, th);
4044 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
4045 struct lu_fid tfid = *dot_dot_fid;
4048 result = osd_add_dot_dotdot_internal(info,
4049 dir->oo_inode, parent_dir, dot_fid,
4052 result = osd_add_dot_dotdot_internal(info,
4053 dir->oo_inode, parent_dir, dot_fid,
4058 dir->oo_compat_dotdot_created = 1;
4066 * It will call the appropriate osd_add* function and return the
4067 * value, return by respective functions.
4069 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
4070 struct inode *cinode, const char *name,
4071 const struct lu_fid *fid, struct thandle *th)
4073 struct osd_thread_info *info = osd_oti_get(env);
4074 struct htree_lock *hlock;
4077 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
4079 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
4081 if (hlock != NULL) {
4082 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4085 down_write(&pobj->oo_ext_idx_sem);
4088 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
4089 lu_object_fid(&pobj->oo_dt.do_lu),
4092 if (hlock != NULL) {
4093 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4094 pobj->oo_inode, LDISKFS_HLOCK_ADD);
4096 down_write(&pobj->oo_ext_idx_sem);
4099 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
4100 struct lu_fid *tfid = &info->oti_fid;
4104 rc = __osd_ea_add_rec(info, pobj, cinode, name,
4107 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
4112 ldiskfs_htree_unlock(hlock);
4114 up_write(&pobj->oo_ext_idx_sem);
4120 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
4121 struct osd_idmap_cache *oic)
4123 struct osd_scrub *scrub = &dev->od_scrub;
4124 struct lu_fid *fid = &oic->oic_fid;
4125 struct osd_inode_id *id = &oti->oti_id;
4130 if (!fid_is_norm(fid) && !fid_is_igif(fid))
4134 rc = osd_oi_lookup(oti, dev, fid, id, OI_CHECK_FLD);
4135 if (rc != 0 && rc != -ENOENT)
4138 if (rc == 0 && osd_id_eq(id, &oic->oic_lid))
4141 if (thread_is_running(&scrub->os_thread)) {
4142 rc = osd_oii_insert(dev, oic, rc == -ENOENT);
4143 /* There is race condition between osd_oi_lookup and OI scrub.
4144 * The OI scrub finished just after osd_oi_lookup() failure.
4145 * Under such case, it is unnecessary to trigger OI scrub again,
4146 * but try to call osd_oi_lookup() again. */
4147 if (unlikely(rc == -EAGAIN))
4153 if (!dev->od_noscrub && ++once == 1) {
4154 rc = osd_scrub_start(dev);
4155 LCONSOLE_WARN("%.16s: trigger OI scrub by RPC for "DFID
4157 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
4166 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
4167 struct osd_device *dev,
4168 struct osd_idmap_cache *oic,
4169 struct lu_fid *fid, __u32 ino)
4171 struct lustre_mdt_attrs *lma = &oti->oti_mdt_attrs;
4172 struct inode *inode;
4175 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
4176 inode = osd_iget(oti, dev, &oic->oic_lid);
4177 if (IS_ERR(inode)) {
4178 fid_zero(&oic->oic_fid);
4179 return PTR_ERR(inode);
4182 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, lma);
4185 fid_zero(&oic->oic_fid);
4187 *fid = oic->oic_fid = lma->lma_self_fid;
4191 int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
4192 struct osd_inode_id *id, const struct lu_fid *fid)
4194 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
4195 id->oii_ino, id->oii_gen, info);
4196 info->oti_cache.oic_lid = *id;
4197 info->oti_cache.oic_fid = *fid;
4198 info->oti_cache.oic_dev = osd;
4204 * Get parent FID from the linkEA.
4206 * For a directory which parent resides on remote MDT, to satisfy the
4207 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
4208 * the other hand, to make the lookup(..) on the directory can return
4209 * the real parent FID, we append the real parent FID after its ".."
4210 * name entry in the /REMOTE_PARENT_DIR.
4212 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
4213 * backup. So after the restore, we cannot get the right parent FID from
4214 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
4215 * we have stored the real parent FID in the directory object's linkEA,
4216 * we can parse the linkEA for the real parent FID.
4218 * \param[in] env pointer to the thread context
4219 * \param[in] obj pointer to the object to be handled
4220 * \param[out]fid pointer to the buffer to hold the parent FID
4222 * \retval 0 for getting the real parent FID successfully
4223 * \retval negative error number on failure
4225 static int osd_get_pfid_from_linkea(const struct lu_env *env,
4226 struct osd_object *obj,
4229 struct osd_thread_info *oti = osd_oti_get(env);
4230 struct lu_buf *buf = &oti->oti_big_buf;
4231 struct dentry *dentry = &oti->oti_obj_dentry;
4232 struct inode *inode = obj->oo_inode;
4233 struct linkea_data ldata = { 0 };
4238 if (!S_ISDIR(inode->i_mode))
4242 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4243 buf->lb_buf, buf->lb_len);
4244 if (rc == -ERANGE) {
4245 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4248 lu_buf_realloc(buf, rc);
4249 if (buf->lb_buf == NULL)
4256 if (unlikely(rc == 0))
4262 if (unlikely(buf->lb_buf == NULL)) {
4263 lu_buf_realloc(buf, rc);
4264 if (buf->lb_buf == NULL)
4271 rc = linkea_init(&ldata);
4273 linkea_first_entry(&ldata);
4274 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
4281 * Calls ->lookup() to find dentry. From dentry get inode and
4282 * read inode's ea to get fid. This is required for interoperability
4285 * \retval 0, on success
4286 * \retval -ve, on error
4288 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
4289 struct dt_rec *rec, const struct dt_key *key)
4291 struct inode *dir = obj->oo_inode;
4292 struct dentry *dentry;
4293 struct ldiskfs_dir_entry_2 *de;
4294 struct buffer_head *bh;
4295 struct lu_fid *fid = (struct lu_fid *) rec;
4296 struct htree_lock *hlock = NULL;
4301 LASSERT(dir->i_op != NULL);
4302 LASSERT(dir->i_op->lookup != NULL);
4304 dentry = osd_child_dentry_get(env, obj,
4305 (char *)key, strlen((char *)key));
4307 if (obj->oo_hl_head != NULL) {
4308 hlock = osd_oti_get(env)->oti_hlock;
4309 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4310 dir, LDISKFS_HLOCK_LOOKUP);
4312 down_read(&obj->oo_ext_idx_sem);
4315 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4317 struct osd_thread_info *oti = osd_oti_get(env);
4318 struct osd_inode_id *id = &oti->oti_id;
4319 struct osd_idmap_cache *oic = &oti->oti_cache;
4320 struct osd_device *dev = osd_obj2dev(obj);
4321 struct osd_scrub *scrub = &dev->od_scrub;
4322 struct scrub_file *sf = &scrub->os_file;
4324 ino = le32_to_cpu(de->inode);
4325 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
4327 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
4331 rc = osd_get_fid_from_dentry(de, rec);
4333 /* done with de, release bh */
4336 if (unlikely(ino == osd_remote_parent_ino(dev)))
4337 /* If the parent is on remote MDT, and there
4338 * is no FID-in-dirent, then we have to get
4339 * the parent FID from the linkEA. */
4340 rc = osd_get_pfid_from_linkea(env, obj, fid);
4342 rc = osd_ea_fid_get(env, obj, ino, fid, id);
4344 osd_id_gen(id, ino, OSD_OII_NOGEN);
4348 fid_zero(&oic->oic_fid);
4352 if (osd_remote_fid(env, dev, fid))
4355 rc = osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id,
4359 if ((scrub->os_pos_current <= ino) &&
4360 ((sf->sf_flags & SF_INCONSISTENT) ||
4361 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
4362 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
4364 osd_consistency_check(oti, dev, oic);
4373 ldiskfs_htree_unlock(hlock);
4375 up_read(&obj->oo_ext_idx_sem);
4380 * Find the osd object for given fid.
4382 * \param fid need to find the osd object having this fid
4384 * \retval osd_object on success
4385 * \retval -ve on error
4387 struct osd_object *osd_object_find(const struct lu_env *env,
4388 struct dt_object *dt,
4389 const struct lu_fid *fid)
4391 struct lu_device *ludev = dt->do_lu.lo_dev;
4392 struct osd_object *child = NULL;
4393 struct lu_object *luch;
4394 struct lu_object *lo;
4397 * at this point topdev might not exist yet
4398 * (i.e. MGS is preparing profiles). so we can
4399 * not rely on topdev and instead lookup with
4400 * our device passed as topdev. this can't work
4401 * if the object isn't cached yet (as osd doesn't
4402 * allocate lu_header). IOW, the object must be
4403 * in the cache, otherwise lu_object_alloc() crashes
4406 luch = lu_object_find_at(env, ludev->ld_site->ls_top_dev == NULL ?
4407 ludev : ludev->ld_site->ls_top_dev,
4409 if (!IS_ERR(luch)) {
4410 if (lu_object_exists(luch)) {
4411 lo = lu_object_locate(luch->lo_header, ludev->ld_type);
4413 child = osd_obj(lo);
4415 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4416 "lu_object can't be located"
4417 DFID"\n", PFID(fid));
4419 if (child == NULL) {
4420 lu_object_put(env, luch);
4421 CERROR("Unable to get osd_object\n");
4422 child = ERR_PTR(-ENOENT);
4425 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4426 "lu_object does not exists "DFID"\n",
4428 lu_object_put(env, luch);
4429 child = ERR_PTR(-ENOENT);
4432 child = ERR_CAST(luch);
4439 * Put the osd object once done with it.
4441 * \param obj osd object that needs to be put
4443 static inline void osd_object_put(const struct lu_env *env,
4444 struct osd_object *obj)
4446 lu_object_put(env, &obj->oo_dt.do_lu);
4449 static int osd_index_declare_ea_insert(const struct lu_env *env,
4450 struct dt_object *dt,
4451 const struct dt_rec *rec,
4452 const struct dt_key *key,
4453 struct thandle *handle)
4455 struct osd_thandle *oh;
4456 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4457 struct lu_fid *fid = (struct lu_fid *)rec;
4461 LASSERT(!dt_object_remote(dt));
4462 LASSERT(handle != NULL);
4464 oh = container_of0(handle, struct osd_thandle, ot_super);
4465 LASSERT(oh->ot_handle == NULL);
4467 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4468 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4470 if (osd_dt_obj(dt)->oo_inode != NULL) {
4471 struct inode *inode = osd_dt_obj(dt)->oo_inode;
4473 /* We ignore block quota on meta pool (MDTs), so needn't
4474 * calculate how many blocks will be consumed by this index
4476 rc = osd_declare_inode_qid(env, i_uid_read(inode),
4477 i_gid_read(inode), 0, oh,
4478 osd_dt_obj(dt), true, NULL, false);
4484 rc = osd_remote_fid(env, osd, fid);
4490 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
4491 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
4492 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4493 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4494 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4495 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4501 * Index add function for interoperability mode (b11826).
4502 * It will add the directory entry.This entry is needed to
4503 * maintain name->fid mapping.
4505 * \param key it is key i.e. file entry to be inserted
4506 * \param rec it is value of given key i.e. fid
4508 * \retval 0, on success
4509 * \retval -ve, on error
4511 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
4512 const struct dt_rec *rec,
4513 const struct dt_key *key, struct thandle *th,
4514 struct lustre_capa *capa, int ignore_quota)
4516 struct osd_object *obj = osd_dt_obj(dt);
4517 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4518 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
4519 const struct lu_fid *fid = rec1->rec_fid;
4520 const char *name = (const char *)key;
4521 struct osd_thread_info *oti = osd_oti_get(env);
4522 struct osd_inode_id *id = &oti->oti_id;
4523 struct inode *child_inode = NULL;
4524 struct osd_object *child = NULL;
4528 LASSERT(osd_invariant(obj));
4529 LASSERT(dt_object_exists(dt));
4530 LASSERT(!dt_object_remote(dt));
4531 LASSERT(th != NULL);
4533 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4535 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
4538 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
4540 rc = osd_remote_fid(env, osd, fid);
4542 CERROR("%s: Can not find object "DFID" rc %d\n",
4543 osd_name(osd), PFID(fid), rc);
4548 /* Insert remote entry */
4549 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
4550 struct osd_mdobj_map *omm = osd->od_mdt_map;
4551 struct osd_thandle *oh;
4553 /* If parent on remote MDT, we need put this object
4555 oh = container_of(th, typeof(*oh), ot_super);
4556 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4558 CERROR("%s: add "DFID" error: rc = %d\n",
4560 PFID(lu_object_fid(&dt->do_lu)), rc);
4564 child_inode = igrab(omm->omm_remote_parent->d_inode);
4566 child_inode = osd_create_local_agent_inode(env, osd,
4567 obj, fid, rec1->rec_type & S_IFMT, th);
4568 if (IS_ERR(child_inode))
4569 RETURN(PTR_ERR(child_inode));
4572 /* Insert local entry */
4573 child = osd_object_find(env, dt, fid);
4574 if (IS_ERR(child)) {
4575 CERROR("%s: Can not find object "DFID"%u:%u: rc = %d\n",
4576 osd_name(osd), PFID(fid),
4577 id->oii_ino, id->oii_gen,
4578 (int)PTR_ERR(child));
4579 RETURN(PTR_ERR(child));
4581 child_inode = igrab(child->oo_inode);
4584 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
4586 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
4587 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
4591 osd_object_put(env, child);
4592 LASSERT(osd_invariant(obj));
4597 * Initialize osd Iterator for given osd index object.
4599 * \param dt osd index object
4602 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
4603 struct dt_object *dt,
4605 struct lustre_capa *capa)
4607 struct osd_it_iam *it;
4608 struct osd_thread_info *oti = osd_oti_get(env);
4609 struct osd_object *obj = osd_dt_obj(dt);
4610 struct lu_object *lo = &dt->do_lu;
4611 struct iam_path_descr *ipd;
4612 struct iam_container *bag = &obj->oo_dir->od_container;
4614 LASSERT(lu_object_exists(lo));
4616 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
4617 return ERR_PTR(-EACCES);
4619 if (oti->oti_it_inline) {
4622 return ERR_PTR(-ENOMEM);
4625 oti->oti_it_inline = 1;
4628 ipd = osd_it_ipd_get(env, bag);
4629 if (likely(ipd != NULL)) {
4633 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
4634 return (struct dt_it *)it;
4636 if (it != &oti->oti_it)
4639 oti->oti_it_inline = 0;
4641 return ERR_PTR(-ENOMEM);
4646 * free given Iterator.
4649 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
4651 struct osd_thread_info *oti = osd_oti_get(env);
4652 struct osd_it_iam *it = (struct osd_it_iam *)di;
4653 struct osd_object *obj = it->oi_obj;
4655 iam_it_fini(&it->oi_it);
4656 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
4657 lu_object_put(env, &obj->oo_dt.do_lu);
4658 if (it != &oti->oti_it)
4661 oti->oti_it_inline = 0;
4665 * Move Iterator to record specified by \a key
4667 * \param di osd iterator
4668 * \param key key for index
4670 * \retval +ve di points to record with least key not larger than key
4671 * \retval 0 di points to exact matched key
4672 * \retval -ve failure
4675 static int osd_it_iam_get(const struct lu_env *env,
4676 struct dt_it *di, const struct dt_key *key)
4678 struct osd_thread_info *oti = osd_oti_get(env);
4679 struct osd_it_iam *it = (struct osd_it_iam *)di;
4681 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4682 /* swab quota uid/gid */
4683 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4684 key = (struct dt_key *)&oti->oti_quota_id;
4687 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
4693 * \param di osd iterator
4695 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
4697 struct osd_it_iam *it = (struct osd_it_iam *)di;
4699 iam_it_put(&it->oi_it);
4703 * Move iterator by one record
4705 * \param di osd iterator
4707 * \retval +1 end of container reached
4709 * \retval -ve failure
4712 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
4714 struct osd_it_iam *it = (struct osd_it_iam *)di;
4716 return iam_it_next(&it->oi_it);
4720 * Return pointer to the key under iterator.
4723 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
4724 const struct dt_it *di)
4726 struct osd_thread_info *oti = osd_oti_get(env);
4727 struct osd_it_iam *it = (struct osd_it_iam *)di;
4728 struct osd_object *obj = it->oi_obj;
4731 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
4733 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
4734 /* swab quota uid/gid */
4735 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
4736 key = (struct dt_key *)&oti->oti_quota_id;
4743 * Return size of key under iterator (in bytes)
4746 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
4748 struct osd_it_iam *it = (struct osd_it_iam *)di;
4750 return iam_it_key_size(&it->oi_it);
4754 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
4756 /* check if file type is required */
4757 if (ent->lde_attrs & LUDA_TYPE) {
4758 struct luda_type *lt;
4759 int align = sizeof(*lt) - 1;
4761 len = (len + align) & ~align;
4762 lt = (struct luda_type *)(ent->lde_name + len);
4763 lt->lt_type = cpu_to_le16(DTTOIF(type));
4766 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
4770 * build lu direct from backend fs dirent.
4774 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
4775 char *name, __u16 namelen, __u16 type, __u32 attr)
4777 ent->lde_attrs = attr | LUDA_FID;
4778 fid_cpu_to_le(&ent->lde_fid, fid);
4780 ent->lde_hash = cpu_to_le64(offset);
4781 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
4783 strncpy(ent->lde_name, name, namelen);
4784 ent->lde_name[namelen] = '\0';
4785 ent->lde_namelen = cpu_to_le16(namelen);
4787 /* append lustre attributes */
4788 osd_it_append_attrs(ent, namelen, type);
4792 * Return pointer to the record under iterator.
4794 static int osd_it_iam_rec(const struct lu_env *env,
4795 const struct dt_it *di,
4796 struct dt_rec *dtrec, __u32 attr)
4798 struct osd_it_iam *it = (struct osd_it_iam *)di;
4799 struct osd_thread_info *info = osd_oti_get(env);
4802 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
4803 const struct osd_fid_pack *rec;
4804 struct lu_fid *fid = &info->oti_fid;
4805 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
4811 name = (char *)iam_it_key_get(&it->oi_it);
4813 RETURN(PTR_ERR(name));
4815 namelen = iam_it_key_size(&it->oi_it);
4817 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
4819 RETURN(PTR_ERR(rec));
4821 rc = osd_fid_unpack(fid, rec);
4825 hash = iam_it_store(&it->oi_it);
4827 /* IAM does not store object type in IAM index (dir) */
4828 osd_it_pack_dirent(lde, fid, hash, name, namelen,
4830 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4831 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4832 (struct iam_rec *)dtrec);
4833 osd_quota_unpack(it->oi_obj, dtrec);
4835 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4836 (struct iam_rec *)dtrec);
4843 * Returns cookie for current Iterator position.
4845 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
4847 struct osd_it_iam *it = (struct osd_it_iam *)di;
4849 return iam_it_store(&it->oi_it);
4853 * Restore iterator from cookie.
4855 * \param di osd iterator
4856 * \param hash Iterator location cookie
4858 * \retval +ve di points to record with least key not larger than key.
4859 * \retval 0 di points to exact matched key
4860 * \retval -ve failure
4863 static int osd_it_iam_load(const struct lu_env *env,
4864 const struct dt_it *di, __u64 hash)
4866 struct osd_it_iam *it = (struct osd_it_iam *)di;
4868 return iam_it_load(&it->oi_it, hash);
4871 static const struct dt_index_operations osd_index_iam_ops = {
4872 .dio_lookup = osd_index_iam_lookup,
4873 .dio_declare_insert = osd_index_declare_iam_insert,
4874 .dio_insert = osd_index_iam_insert,
4875 .dio_declare_delete = osd_index_declare_iam_delete,
4876 .dio_delete = osd_index_iam_delete,
4878 .init = osd_it_iam_init,
4879 .fini = osd_it_iam_fini,
4880 .get = osd_it_iam_get,
4881 .put = osd_it_iam_put,
4882 .next = osd_it_iam_next,
4883 .key = osd_it_iam_key,
4884 .key_size = osd_it_iam_key_size,
4885 .rec = osd_it_iam_rec,
4886 .store = osd_it_iam_store,
4887 .load = osd_it_iam_load
4893 * Creates or initializes iterator context.
4895 * \retval struct osd_it_ea, iterator structure on success
4898 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
4899 struct dt_object *dt,
4901 struct lustre_capa *capa)
4903 struct osd_object *obj = osd_dt_obj(dt);
4904 struct osd_thread_info *info = osd_oti_get(env);
4905 struct osd_it_ea *it;
4907 struct lu_object *lo = &dt->do_lu;
4908 struct dentry *obj_dentry = &info->oti_it_dentry;
4911 LASSERT(lu_object_exists(lo));
4913 if (info->oti_it_inline) {
4916 RETURN(ERR_PTR(-ENOMEM));
4918 it = &info->oti_it_ea;
4919 info->oti_it_inline = 1;
4922 obj_dentry->d_inode = obj->oo_inode;
4923 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
4924 obj_dentry->d_name.hash = 0;
4926 it->oie_rd_dirent = 0;
4927 it->oie_it_dirent = 0;
4928 it->oie_dirent = NULL;
4929 it->oie_buf = info->oti_it_ea_buf;
4932 file = &it->oie_file;
4933 /* Reset the "file" totally to avoid to reuse any old value from
4934 * former readdir handling, the "file->f_pos" should be zero. */
4935 memset(file, 0, sizeof(*file));
4936 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
4937 if (attr & LUDA_64BITHASH)
4938 file->f_mode = FMODE_64BITHASH;
4940 file->f_mode = FMODE_32BITHASH;
4941 file->f_dentry = obj_dentry;
4942 file->f_mapping = obj->oo_inode->i_mapping;
4943 file->f_op = obj->oo_inode->i_fop;
4944 set_file_inode(file, obj->oo_inode);
4947 RETURN((struct dt_it *) it);
4951 * Destroy or finishes iterator context.
4953 * \param di iterator structure to be destroyed
4955 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
4957 struct osd_thread_info *info = osd_oti_get(env);
4958 struct osd_it_ea *it = (struct osd_it_ea *)di;
4959 struct osd_object *obj = it->oie_obj;
4960 struct inode *inode = obj->oo_inode;
4963 it->oie_file.f_op->release(inode, &it->oie_file);
4964 lu_object_put(env, &obj->oo_dt.do_lu);
4965 if (it != &info->oti_it_ea)
4968 info->oti_it_inline = 0;
4973 * It position the iterator at given key, so that next lookup continues from
4974 * that key Or it is similar to dio_it->load() but based on a key,
4975 * rather than file position.
4977 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
4980 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
4982 static int osd_it_ea_get(const struct lu_env *env,
4983 struct dt_it *di, const struct dt_key *key)
4985 struct osd_it_ea *it = (struct osd_it_ea *)di;
4988 LASSERT(((const char *)key)[0] == '\0');
4989 it->oie_file.f_pos = 0;
4990 it->oie_rd_dirent = 0;
4991 it->oie_it_dirent = 0;
4992 it->oie_dirent = NULL;
5000 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
5004 struct osd_filldir_cbs {
5005 #ifdef HAVE_DIR_CONTEXT
5006 struct dir_context ctx;
5008 struct osd_it_ea *it;
5011 * It is called internally by ->readdir(). It fills the
5012 * iterator's in-memory data structure with required
5013 * information i.e. name, namelen, rec_size etc.
5015 * \param buf in which information to be filled in.
5016 * \param name name of the file in given dir
5018 * \retval 0 on success
5019 * \retval 1 on buffer full
5021 static int osd_ldiskfs_filldir(void *buf, const char *name, int namelen,
5022 loff_t offset, __u64 ino,
5025 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
5026 struct osd_object *obj = it->oie_obj;
5027 struct osd_it_ea_dirent *ent = it->oie_dirent;
5028 struct lu_fid *fid = &ent->oied_fid;
5029 struct osd_fid_pack *rec;
5032 /* this should never happen */
5033 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
5034 CERROR("ldiskfs return invalid namelen %d\n", namelen);
5038 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
5042 /* "." is just the object itself. */
5043 if (namelen == 1 && name[0] == '.') {
5044 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5045 } else if (d_type & LDISKFS_DIRENT_LUFID) {
5046 rec = (struct osd_fid_pack*) (name + namelen + 1);
5047 if (osd_fid_unpack(fid, rec) != 0)
5052 d_type &= ~LDISKFS_DIRENT_LUFID;
5054 /* NOT export local root. */
5055 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
5056 ino = obj->oo_inode->i_ino;
5057 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5060 ent->oied_ino = ino;
5061 ent->oied_off = offset;
5062 ent->oied_namelen = namelen;
5063 ent->oied_type = d_type;
5065 memcpy(ent->oied_name, name, namelen);
5067 it->oie_rd_dirent++;
5068 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
5073 * Calls ->readdir() to load a directory entry at a time
5074 * and stored it in iterator's in-memory data structure.
5076 * \param di iterator's in memory structure
5078 * \retval 0 on success
5079 * \retval -ve on error
5080 * \retval +1 reach the end of entry
5082 static int osd_ldiskfs_it_fill(const struct lu_env *env,
5083 const struct dt_it *di)
5085 struct osd_it_ea *it = (struct osd_it_ea *)di;
5086 struct osd_object *obj = it->oie_obj;
5087 struct inode *inode = obj->oo_inode;
5088 struct htree_lock *hlock = NULL;
5089 struct file *filp = &it->oie_file;
5091 struct osd_filldir_cbs buf = {
5092 #ifdef HAVE_DIR_CONTEXT
5093 .ctx.actor = osd_ldiskfs_filldir,
5099 it->oie_dirent = it->oie_buf;
5100 it->oie_rd_dirent = 0;
5102 if (obj->oo_hl_head != NULL) {
5103 hlock = osd_oti_get(env)->oti_hlock;
5104 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5105 inode, LDISKFS_HLOCK_READDIR);
5107 down_read(&obj->oo_ext_idx_sem);
5110 #ifdef HAVE_DIR_CONTEXT
5111 buf.ctx.pos = filp->f_pos;
5112 rc = inode->i_fop->iterate(filp, &buf.ctx);
5113 filp->f_pos = buf.ctx.pos;
5115 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
5119 ldiskfs_htree_unlock(hlock);
5121 up_read(&obj->oo_ext_idx_sem);
5123 if (it->oie_rd_dirent == 0) {
5124 /*If it does not get any dirent, it means it has been reached
5125 *to the end of the dir */
5126 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
5130 it->oie_dirent = it->oie_buf;
5131 it->oie_it_dirent = 1;
5138 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5139 * to load a directory entry at a time and stored it in
5140 * iterator's in-memory data structure.
5142 * \param di iterator's in memory structure
5144 * \retval +ve iterator reached to end
5145 * \retval 0 iterator not reached to end
5146 * \retval -ve on error
5148 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
5150 struct osd_it_ea *it = (struct osd_it_ea *)di;
5155 if (it->oie_it_dirent < it->oie_rd_dirent) {
5157 (void *) it->oie_dirent +
5158 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
5159 it->oie_dirent->oied_namelen);
5160 it->oie_it_dirent++;
5163 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
5166 rc = osd_ldiskfs_it_fill(env, di);
5173 * Returns the key at current position from iterator's in memory structure.
5175 * \param di iterator's in memory structure
5177 * \retval key i.e. struct dt_key on success
5179 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
5180 const struct dt_it *di)
5182 struct osd_it_ea *it = (struct osd_it_ea *)di;
5184 return (struct dt_key *)it->oie_dirent->oied_name;
5188 * Returns the key's size at current position from iterator's in memory structure.
5190 * \param di iterator's in memory structure
5192 * \retval key_size i.e. struct dt_key on success
5194 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
5196 struct osd_it_ea *it = (struct osd_it_ea *)di;
5198 return it->oie_dirent->oied_namelen;
5202 osd_dirent_update(handle_t *jh, struct super_block *sb,
5203 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
5204 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de)
5206 struct osd_fid_pack *rec;
5210 LASSERT(de->file_type & LDISKFS_DIRENT_LUFID);
5211 LASSERT(de->rec_len >= de->name_len + sizeof(struct osd_fid_pack));
5213 rc = ldiskfs_journal_get_write_access(jh, bh);
5217 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5218 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
5219 rc = ldiskfs_journal_dirty_metadata(jh, bh);
5225 osd_dirent_has_space(__u16 reclen, __u16 namelen, unsigned blocksize)
5227 if (ldiskfs_rec_len_from_disk(reclen, blocksize) >=
5228 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
5235 osd_dot_dotdot_has_space(struct ldiskfs_dir_entry_2 *de, int dot_dotdot)
5237 LASSERTF(dot_dotdot == 1 || dot_dotdot == 2,
5238 "dot_dotdot = %d\n", dot_dotdot);
5240 if (LDISKFS_DIR_REC_LEN(de) >=
5241 __LDISKFS_DIR_REC_LEN(dot_dotdot + 1 + sizeof(struct osd_fid_pack)))
5248 osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
5249 struct inode *dir, struct inode *inode,
5250 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
5251 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de,
5252 struct htree_lock *hlock)
5254 struct dentry *dentry;
5255 struct osd_fid_pack *rec;
5256 struct ldiskfs_dentry_param *ldp;
5260 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
5261 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
5264 /* There is enough space to hold the FID-in-dirent. */
5265 if (osd_dirent_has_space(de->rec_len, ent->oied_namelen,
5266 dir->i_sb->s_blocksize)) {
5267 rc = ldiskfs_journal_get_write_access(jh, bh);
5271 de->name[de->name_len] = 0;
5272 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5273 rec->fp_len = sizeof(struct lu_fid) + 1;
5274 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
5275 de->file_type |= LDISKFS_DIRENT_LUFID;
5277 rc = ldiskfs_journal_dirty_metadata(jh, bh);
5282 rc = ldiskfs_delete_entry(jh, dir, de, bh);
5286 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
5288 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
5289 osd_get_ldiskfs_dirent_param(ldp, fid);
5290 dentry->d_fsdata = (void *)ldp;
5291 ll_vfs_dq_init(dir);
5292 rc = osd_ldiskfs_add_entry(jh, dentry, inode, hlock);
5293 /* It is too bad, we cannot reinsert the name entry back.
5294 * That means we lose it! */
5296 CDEBUG(D_LFSCK, "%.16s: fail to reinsert the dirent, "
5297 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
5298 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
5299 dir->i_ino, dir->i_generation,
5300 ent->oied_namelen, ent->oied_name, PFID(fid), rc);
5306 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
5307 struct osd_it_ea *it, struct lu_fid *fid,
5308 struct osd_inode_id *id, __u32 *attr)
5310 struct osd_thread_info *info = osd_oti_get(env);
5311 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
5312 struct osd_device *dev = osd_obj2dev(obj);
5313 struct super_block *sb = osd_sb(dev);
5314 const char *devname =
5315 LDISKFS_SB(sb)->s_es->s_volume_name;
5316 struct osd_it_ea_dirent *ent = it->oie_dirent;
5317 struct inode *dir = obj->oo_inode;
5318 struct htree_lock *hlock = NULL;
5319 struct buffer_head *bh = NULL;
5320 handle_t *jh = NULL;
5321 struct ldiskfs_dir_entry_2 *de;
5322 struct dentry *dentry;
5323 struct inode *inode;
5330 if (ent->oied_name[0] == '.') {
5331 if (ent->oied_namelen == 1)
5333 else if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
5337 dentry = osd_child_dentry_get(env, obj, ent->oied_name,
5340 /* We need to ensure that the name entry is still valid.
5341 * Because it may be removed or renamed by other already.
5343 * The unlink or rename operation will start journal before PDO lock,
5344 * so to avoid deadlock, here we need to start journal handle before
5345 * related PDO lock also. But because we do not know whether there
5346 * will be something to be repaired before PDO lock, we just start
5347 * journal without conditions.
5349 * We may need to remove the name entry firstly, then insert back.
5350 * One credit is for user quota file update.
5351 * One credit is for group quota file update.
5352 * Two credits are for dirty inode. */
5353 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
5354 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
5357 if (dev->od_dirent_journal) {
5358 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
5361 CDEBUG(D_LFSCK, "%.16s: fail to start trans for dirent "
5362 "check_repair, dir = %lu/%u, credits = %d, "
5363 "name = %.*s: rc = %d\n",
5364 devname, dir->i_ino, dir->i_generation, credits,
5365 ent->oied_namelen, ent->oied_name, rc);
5369 if (obj->oo_hl_head != NULL) {
5370 hlock = osd_oti_get(env)->oti_hlock;
5371 /* "0" means exclusive lock for the whole directory.
5372 * We need to prevent others access such name entry
5373 * during the delete + insert. Neither HLOCK_ADD nor
5374 * HLOCK_DEL cannot guarantee the atomicity. */
5375 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
5377 down_write(&obj->oo_ext_idx_sem);
5380 if (obj->oo_hl_head != NULL) {
5381 hlock = osd_oti_get(env)->oti_hlock;
5382 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
5383 LDISKFS_HLOCK_LOOKUP);
5385 down_read(&obj->oo_ext_idx_sem);
5389 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5390 /* For dot/dotdot entry, if there is not enough space to hold the
5391 * FID-in-dirent, just keep them there. It only happens when the
5392 * device upgraded from 1.8 or restored from MDT file-level backup.
5393 * For the whole directory, only dot/dotdot entry have no FID-in-dirent
5394 * and needs to get FID from LMA when readdir, it will not affect the
5395 * performance much. */
5396 if ((bh == NULL) || (le32_to_cpu(de->inode) != ent->oied_ino) ||
5397 (dot_dotdot != 0 && !osd_dot_dotdot_has_space(de, dot_dotdot))) {
5398 *attr |= LUDA_IGNORE;
5399 GOTO(out_journal, rc = 0);
5402 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
5403 inode = osd_iget(info, dev, id);
5404 if (IS_ERR(inode)) {
5405 rc = PTR_ERR(inode);
5406 if (rc == -ENOENT || rc == -ESTALE)
5409 CDEBUG(D_LFSCK, "%.16s: fail to iget for dirent "
5410 "check_repair, dir = %lu/%u, name = %.*s: "
5412 devname, dir->i_ino, dir->i_generation,
5413 ent->oied_namelen, ent->oied_name, rc);
5415 GOTO(out_journal, rc);
5418 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
5420 LASSERT(!(lma->lma_compat & LMAC_NOT_IN_OI));
5422 if (fid_is_sane(fid)) {
5423 /* FID-in-dirent is valid. */
5424 if (lu_fid_eq(fid, &lma->lma_self_fid))
5425 GOTO(out_inode, rc = 0);
5427 /* Do not repair under dryrun mode. */
5428 if (*attr & LUDA_VERIFY_DRYRUN) {
5429 *attr |= LUDA_REPAIR;
5430 GOTO(out_inode, rc = 0);
5433 if (!dev->od_dirent_journal) {
5437 ldiskfs_htree_unlock(hlock);
5439 up_read(&obj->oo_ext_idx_sem);
5440 dev->od_dirent_journal = 1;
5444 *fid = lma->lma_self_fid;
5446 /* Update the FID-in-dirent. */
5447 rc = osd_dirent_update(jh, sb, ent, fid, bh, de);
5449 *attr |= LUDA_REPAIR;
5451 CDEBUG(D_LFSCK, "%.16s: fail to update FID "
5452 "in the dirent, dir = %lu/%u, "
5453 "name = %.*s, "DFID": rc = %d\n",
5454 devname, dir->i_ino, dir->i_generation,
5455 ent->oied_namelen, ent->oied_name,
5458 /* Do not repair under dryrun mode. */
5459 if (*attr & LUDA_VERIFY_DRYRUN) {
5460 *fid = lma->lma_self_fid;
5461 *attr |= LUDA_REPAIR;
5462 GOTO(out_inode, rc = 0);
5465 if (!dev->od_dirent_journal) {
5469 ldiskfs_htree_unlock(hlock);
5471 up_read(&obj->oo_ext_idx_sem);
5472 dev->od_dirent_journal = 1;
5476 *fid = lma->lma_self_fid;
5478 /* Append the FID-in-dirent. */
5479 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5480 fid, bh, de, hlock);
5482 *attr |= LUDA_REPAIR;
5484 CDEBUG(D_LFSCK, "%.16s: fail to append FID "
5485 "after the dirent, dir = %lu/%u, "
5486 "name = %.*s, "DFID": rc = %d\n",
5487 devname, dir->i_ino, dir->i_generation,
5488 ent->oied_namelen, ent->oied_name,
5491 } else if (rc == -ENODATA) {
5492 /* Do not repair under dryrun mode. */
5493 if (*attr & LUDA_VERIFY_DRYRUN) {
5494 if (fid_is_sane(fid)) {
5495 *attr |= LUDA_REPAIR;
5497 lu_igif_build(fid, inode->i_ino,
5498 inode->i_generation);
5499 *attr |= LUDA_UPGRADE;
5501 GOTO(out_inode, rc = 0);
5504 if (!dev->od_dirent_journal) {
5508 ldiskfs_htree_unlock(hlock);
5510 up_read(&obj->oo_ext_idx_sem);
5511 dev->od_dirent_journal = 1;
5516 if (unlikely(fid_is_sane(fid))) {
5517 /* FID-in-dirent exists, but FID-in-LMA is lost.
5518 * Trust the FID-in-dirent, and add FID-in-LMA. */
5519 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
5521 *attr |= LUDA_REPAIR;
5523 CDEBUG(D_LFSCK, "%.16s: fail to set LMA for "
5524 "update dirent, dir = %lu/%u, "
5525 "name = %.*s, "DFID": rc = %d\n",
5526 devname, dir->i_ino, dir->i_generation,
5527 ent->oied_namelen, ent->oied_name,
5530 lu_igif_build(fid, inode->i_ino, inode->i_generation);
5531 /* It is probably IGIF object. Only aappend the
5532 * FID-in-dirent. OI scrub will process FID-in-LMA. */
5533 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5534 fid, bh, de, hlock);
5536 *attr |= LUDA_UPGRADE;
5538 CDEBUG(D_LFSCK, "%.16s: fail to append IGIF "
5539 "after the dirent, dir = %lu/%u, "
5540 "name = %.*s, "DFID": rc = %d\n",
5541 devname, dir->i_ino, dir->i_generation,
5542 ent->oied_namelen, ent->oied_name,
5547 GOTO(out_inode, rc);
5554 if (hlock != NULL) {
5555 ldiskfs_htree_unlock(hlock);
5557 if (dev->od_dirent_journal)
5558 up_write(&obj->oo_ext_idx_sem);
5560 up_read(&obj->oo_ext_idx_sem);
5563 ldiskfs_journal_stop(jh);
5564 if (rc >= 0 && !dirty)
5565 dev->od_dirent_journal = 0;
5570 * Returns the value at current position from iterator's in memory structure.
5572 * \param di struct osd_it_ea, iterator's in memory structure
5573 * \param attr attr requested for dirent.
5574 * \param lde lustre dirent
5576 * \retval 0 no error and \param lde has correct lustre dirent.
5577 * \retval -ve on error
5579 static inline int osd_it_ea_rec(const struct lu_env *env,
5580 const struct dt_it *di,
5581 struct dt_rec *dtrec, __u32 attr)
5583 struct osd_it_ea *it = (struct osd_it_ea *)di;
5584 struct osd_object *obj = it->oie_obj;
5585 struct osd_device *dev = osd_obj2dev(obj);
5586 struct osd_scrub *scrub = &dev->od_scrub;
5587 struct scrub_file *sf = &scrub->os_file;
5588 struct osd_thread_info *oti = osd_oti_get(env);
5589 struct osd_inode_id *id = &oti->oti_id;
5590 struct osd_idmap_cache *oic = &oti->oti_cache;
5591 struct lu_fid *fid = &it->oie_dirent->oied_fid;
5592 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5593 __u32 ino = it->oie_dirent->oied_ino;
5597 LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
5599 if (attr & LUDA_VERIFY) {
5600 if (unlikely(ino == osd_remote_parent_ino(dev))) {
5601 attr |= LUDA_IGNORE;
5602 /* If the parent is on remote MDT, and there
5603 * is no FID-in-dirent, then we have to get
5604 * the parent FID from the linkEA. */
5605 osd_get_pfid_from_linkea(env, obj, fid);
5607 rc = osd_dirent_check_repair(env, obj, it, fid, id,
5611 attr &= ~LU_DIRENT_ATTRS_MASK;
5612 if (!fid_is_sane(fid)) {
5613 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP) &&
5614 likely(it->oie_dirent->oied_namelen != 2 ||
5615 it->oie_dirent->oied_name[0] != '.' ||
5616 it->oie_dirent->oied_name[1] != '.'))
5619 if (unlikely(ino == osd_remote_parent_ino(dev)))
5620 /* If the parent is on remote MDT, and there
5621 * is no FID-in-dirent, then we have to get
5622 * the parent FID from the linkEA. */
5623 rc = osd_get_pfid_from_linkea(env, obj, fid);
5625 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5627 osd_id_gen(id, ino, OSD_OII_NOGEN);
5631 /* Pack the entry anyway, at least the offset is right. */
5632 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
5633 it->oie_dirent->oied_name,
5634 it->oie_dirent->oied_namelen,
5635 it->oie_dirent->oied_type, attr);
5640 if (osd_remote_fid(env, dev, fid))
5643 if (likely(!(attr & LUDA_IGNORE) && rc == 0))
5644 rc = osd_add_oi_cache(oti, dev, id, fid);
5646 if (!(attr & LUDA_VERIFY) &&
5647 (scrub->os_pos_current <= ino) &&
5648 ((sf->sf_flags & SF_INCONSISTENT) ||
5649 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
5650 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid), sf->sf_oi_bitmap)))
5651 osd_consistency_check(oti, dev, oic);
5653 RETURN(rc > 0 ? 0 : rc);
5657 * Returns the record size size at current position.
5659 * This function will return record(lu_dirent) size in bytes.
5661 * \param[in] env execution environment
5662 * \param[in] di iterator's in memory structure
5663 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
5664 * calculate the lu_dirent size.
5666 * \retval record size(in bytes & in memory) of the current lu_dirent
5669 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
5672 struct osd_it_ea *it = (struct osd_it_ea *)di;
5674 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
5678 * Returns a cookie for current position of the iterator head, so that
5679 * user can use this cookie to load/start the iterator next time.
5681 * \param di iterator's in memory structure
5683 * \retval cookie for current position, on success
5685 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
5687 struct osd_it_ea *it = (struct osd_it_ea *)di;
5689 return it->oie_dirent->oied_off;
5693 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5694 * to load a directory entry at a time and stored it i inn,
5695 * in iterator's in-memory data structure.
5697 * \param di struct osd_it_ea, iterator's in memory structure
5699 * \retval +ve on success
5700 * \retval -ve on error
5702 static int osd_it_ea_load(const struct lu_env *env,
5703 const struct dt_it *di, __u64 hash)
5705 struct osd_it_ea *it = (struct osd_it_ea *)di;
5709 it->oie_file.f_pos = hash;
5711 rc = osd_ldiskfs_it_fill(env, di);
5722 * Index lookup function for interoperability mode (b11826).
5724 * \param key, key i.e. file name to be searched
5726 * \retval +ve, on success
5727 * \retval -ve, on error
5729 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
5730 struct dt_rec *rec, const struct dt_key *key,
5731 struct lustre_capa *capa)
5733 struct osd_object *obj = osd_dt_obj(dt);
5738 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
5739 LINVRNT(osd_invariant(obj));
5741 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
5744 rc = osd_ea_lookup_rec(env, obj, rec, key);
5751 * Index and Iterator operations for interoperability
5752 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
5754 static const struct dt_index_operations osd_index_ea_ops = {
5755 .dio_lookup = osd_index_ea_lookup,
5756 .dio_declare_insert = osd_index_declare_ea_insert,
5757 .dio_insert = osd_index_ea_insert,
5758 .dio_declare_delete = osd_index_declare_ea_delete,
5759 .dio_delete = osd_index_ea_delete,
5761 .init = osd_it_ea_init,
5762 .fini = osd_it_ea_fini,
5763 .get = osd_it_ea_get,
5764 .put = osd_it_ea_put,
5765 .next = osd_it_ea_next,
5766 .key = osd_it_ea_key,
5767 .key_size = osd_it_ea_key_size,
5768 .rec = osd_it_ea_rec,
5769 .rec_size = osd_it_ea_rec_size,
5770 .store = osd_it_ea_store,
5771 .load = osd_it_ea_load
5775 static void *osd_key_init(const struct lu_context *ctx,
5776 struct lu_context_key *key)
5778 struct osd_thread_info *info;
5780 OBD_ALLOC_PTR(info);
5782 return ERR_PTR(-ENOMEM);
5784 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5785 if (info->oti_it_ea_buf == NULL)
5788 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
5790 info->oti_hlock = ldiskfs_htree_lock_alloc();
5791 if (info->oti_hlock == NULL)
5797 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5800 return ERR_PTR(-ENOMEM);
5803 static void osd_key_fini(const struct lu_context *ctx,
5804 struct lu_context_key *key, void* data)
5806 struct osd_thread_info *info = data;
5808 if (info->oti_hlock != NULL)
5809 ldiskfs_htree_lock_free(info->oti_hlock);
5810 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5811 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
5812 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
5813 lu_buf_free(&info->oti_big_buf);
5817 static void osd_key_exit(const struct lu_context *ctx,
5818 struct lu_context_key *key, void *data)
5820 struct osd_thread_info *info = data;
5822 LASSERT(info->oti_r_locks == 0);
5823 LASSERT(info->oti_w_locks == 0);
5824 LASSERT(info->oti_txns == 0);
5827 /* type constructor/destructor: osd_type_init, osd_type_fini */
5828 LU_TYPE_INIT_FINI(osd, &osd_key);
5830 struct lu_context_key osd_key = {
5831 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
5832 .lct_init = osd_key_init,
5833 .lct_fini = osd_key_fini,
5834 .lct_exit = osd_key_exit
5838 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
5839 const char *name, struct lu_device *next)
5841 struct osd_device *osd = osd_dev(d);
5843 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
5844 >= sizeof(osd->od_svname))
5846 return osd_procfs_init(osd, name);
5849 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
5851 struct seq_server_site *ss = osd_seq_site(osd);
5855 if (osd->od_is_ost || osd->od_cl_seq != NULL)
5858 if (unlikely(ss == NULL))
5861 OBD_ALLOC_PTR(osd->od_cl_seq);
5862 if (osd->od_cl_seq == NULL)
5865 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
5866 osd->od_svname, ss->ss_server_seq);
5869 OBD_FREE_PTR(osd->od_cl_seq);
5870 osd->od_cl_seq = NULL;
5876 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
5878 if (osd->od_cl_seq == NULL)
5881 seq_client_fini(osd->od_cl_seq);
5882 OBD_FREE_PTR(osd->od_cl_seq);
5883 osd->od_cl_seq = NULL;
5886 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
5890 /* shutdown quota slave instance associated with the device */
5891 if (o->od_quota_slave != NULL) {
5892 qsd_fini(env, o->od_quota_slave);
5893 o->od_quota_slave = NULL;
5896 osd_fid_fini(env, o);
5901 static void osd_umount(const struct lu_env *env, struct osd_device *o)
5905 if (o->od_mnt != NULL) {
5906 shrink_dcache_sb(osd_sb(o));
5907 osd_sync(env, &o->od_dt_dev);
5916 static int osd_mount(const struct lu_env *env,
5917 struct osd_device *o, struct lustre_cfg *cfg)
5919 const char *name = lustre_cfg_string(cfg, 0);
5920 const char *dev = lustre_cfg_string(cfg, 1);
5922 unsigned long page, s_flags, lmd_flags = 0;
5923 struct page *__page;
5924 struct file_system_type *type;
5925 char *options = NULL;
5927 struct osd_thread_info *info = osd_oti_get(env);
5928 struct lu_fid *fid = &info->oti_fid;
5929 struct inode *inode;
5933 if (o->od_mnt != NULL)
5936 if (strlen(dev) >= sizeof(o->od_mntdev))
5938 strcpy(o->od_mntdev, dev);
5940 OBD_PAGE_ALLOC(__page, GFP_IOFS);
5942 GOTO(out, rc = -ENOMEM);
5944 str = lustre_cfg_string(cfg, 2);
5945 s_flags = simple_strtoul(str, NULL, 0);
5946 str = strstr(str, ":");
5948 lmd_flags = simple_strtoul(str + 1, NULL, 0);
5949 opts = lustre_cfg_string(cfg, 3);
5950 page = (unsigned long)page_address(__page);
5951 options = (char *)page;
5954 strcat(options, "user_xattr,acl");
5956 strcat(options, opts);
5958 /* Glom up mount options */
5959 if (*options != '\0')
5960 strcat(options, ",");
5961 strlcat(options, "no_mbcache", PAGE_CACHE_SIZE);
5963 type = get_fs_type("ldiskfs");
5965 CERROR("%s: cannot find ldiskfs module\n", name);
5966 GOTO(out, rc = -ENODEV);
5969 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
5970 module_put(type->owner);
5972 if (IS_ERR(o->od_mnt)) {
5973 rc = PTR_ERR(o->od_mnt);
5975 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
5979 #ifdef HAVE_DEV_SET_RDONLY
5980 if (dev_check_rdonly(o->od_mnt->mnt_sb->s_bdev)) {
5981 CERROR("%s: underlying device %s is marked as read-only. "
5982 "Setup failed\n", name, dev);
5983 GOTO(out_mnt, rc = -EROFS);
5987 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
5988 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
5989 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
5990 GOTO(out_mnt, rc = -EINVAL);
5993 #ifdef LDISKFS_MOUNT_DIRDATA
5994 if (LDISKFS_HAS_INCOMPAT_FEATURE(o->od_mnt->mnt_sb,
5995 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
5996 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
5997 else if (!o->od_is_ost)
5998 CWARN("%s: device %s was upgraded from Lustre-1.x without "
5999 "enabling the dirdata feature. If you do not want to "
6000 "downgrade to Lustre-1.x again, you can enable it via "
6001 "'tune2fs -O dirdata device'\n", name, dev);
6003 inode = osd_sb(o)->s_root->d_inode;
6004 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
6005 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
6007 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
6011 if (lmd_flags & LMD_FLG_NOSCRUB)
6022 OBD_PAGE_FREE(__page);
6027 static struct lu_device *osd_device_fini(const struct lu_env *env,
6028 struct lu_device *d)
6030 struct osd_device *o = osd_dev(d);
6033 osd_shutdown(env, o);
6035 osd_scrub_cleanup(env, o);
6036 osd_obj_map_fini(o);
6042 static int osd_device_init0(const struct lu_env *env,
6043 struct osd_device *o,
6044 struct lustre_cfg *cfg)
6046 struct lu_device *l = osd2lu_dev(o);
6047 struct osd_thread_info *info;
6051 /* if the module was re-loaded, env can loose its keys */
6052 rc = lu_env_refill((struct lu_env *) env);
6055 info = osd_oti_get(env);
6058 l->ld_ops = &osd_lu_ops;
6059 o->od_dt_dev.dd_ops = &osd_dt_ops;
6061 spin_lock_init(&o->od_osfs_lock);
6062 mutex_init(&o->od_otable_mutex);
6064 o->od_capa_hash = init_capa_hash();
6065 if (o->od_capa_hash == NULL)
6066 GOTO(out, rc = -ENOMEM);
6068 o->od_read_cache = 1;
6069 o->od_writethrough_cache = 1;
6070 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
6072 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
6073 sizeof(o->od_svname));
6074 if (cplen >= sizeof(o->od_svname)) {
6079 if (server_name_is_ost(o->od_svname))
6082 rc = osd_mount(env, o, cfg);
6086 rc = osd_obj_map_init(env, o);
6090 rc = lu_site_init(&o->od_site, l);
6092 GOTO(out_compat, rc);
6093 o->od_site.ls_bottom_dev = l;
6095 rc = lu_site_init_finish(&o->od_site);
6099 /* self-repair LMA by default */
6100 o->od_lma_self_repair = 1;
6102 INIT_LIST_HEAD(&o->od_ios_list);
6103 /* setup scrub, including OI files initialization */
6104 rc = osd_scrub_setup(env, o);
6108 rc = osd_procfs_init(o, o->od_svname);
6110 CERROR("%s: can't initialize procfs: rc = %d\n",
6112 GOTO(out_scrub, rc);
6115 LASSERT(l->ld_site->ls_linkage.next != NULL);
6116 LASSERT(l->ld_site->ls_linkage.prev != NULL);
6118 /* initialize quota slave instance */
6119 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
6121 if (IS_ERR(o->od_quota_slave)) {
6122 rc = PTR_ERR(o->od_quota_slave);
6123 o->od_quota_slave = NULL;
6124 GOTO(out_procfs, rc);
6132 osd_scrub_cleanup(env, o);
6134 lu_site_fini(&o->od_site);
6136 osd_obj_map_fini(o);
6140 cleanup_capa_hash(o->od_capa_hash);
6145 static struct lu_device *osd_device_alloc(const struct lu_env *env,
6146 struct lu_device_type *t,
6147 struct lustre_cfg *cfg)
6149 struct osd_device *o;
6154 return ERR_PTR(-ENOMEM);
6156 rc = dt_device_init(&o->od_dt_dev, t);
6158 /* Because the ctx might be revived in dt_device_init,
6159 * refill the env here */
6160 lu_env_refill((struct lu_env *)env);
6161 rc = osd_device_init0(env, o, cfg);
6163 dt_device_fini(&o->od_dt_dev);
6166 if (unlikely(rc != 0))
6169 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
6172 static struct lu_device *osd_device_free(const struct lu_env *env,
6173 struct lu_device *d)
6175 struct osd_device *o = osd_dev(d);
6178 cleanup_capa_hash(o->od_capa_hash);
6179 /* XXX: make osd top device in order to release reference */
6180 d->ld_site->ls_top_dev = d;
6181 lu_site_purge(env, d->ld_site, -1);
6182 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
6183 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
6184 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
6186 lu_site_fini(&o->od_site);
6187 dt_device_fini(&o->od_dt_dev);
6192 static int osd_process_config(const struct lu_env *env,
6193 struct lu_device *d, struct lustre_cfg *cfg)
6195 struct osd_device *o = osd_dev(d);
6199 switch (cfg->lcfg_command) {
6201 rc = osd_mount(env, o, cfg);
6204 lu_dev_del_linkage(d->ld_site, d);
6205 rc = osd_shutdown(env, o);
6208 LASSERT(&o->od_dt_dev);
6209 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
6210 cfg, &o->od_dt_dev);
6211 if (rc > 0 || rc == -ENOSYS)
6212 rc = class_process_proc_param(PARAM_OST,
6213 lprocfs_osd_obd_vars,
6214 cfg, &o->od_dt_dev);
6223 static int osd_recovery_complete(const struct lu_env *env,
6224 struct lu_device *d)
6226 struct osd_device *osd = osd_dev(d);
6230 if (osd->od_quota_slave == NULL)
6233 /* start qsd instance on recovery completion, this notifies the quota
6234 * slave code that we are about to process new requests now */
6235 rc = qsd_start(env, osd->od_quota_slave);
6240 * we use exports to track all osd users
6242 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
6243 struct obd_device *obd, struct obd_uuid *cluuid,
6244 struct obd_connect_data *data, void *localdata)
6246 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6247 struct lustre_handle conn;
6251 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
6253 rc = class_connect(&conn, obd, cluuid);
6257 *exp = class_conn2export(&conn);
6259 spin_lock(&osd->od_osfs_lock);
6261 spin_unlock(&osd->od_osfs_lock);
6267 * once last export (we don't count self-export) disappeared
6268 * osd can be released
6270 static int osd_obd_disconnect(struct obd_export *exp)
6272 struct obd_device *obd = exp->exp_obd;
6273 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6274 int rc, release = 0;
6277 /* Only disconnect the underlying layers on the final disconnect. */
6278 spin_lock(&osd->od_osfs_lock);
6280 if (osd->od_connects == 0)
6282 spin_unlock(&osd->od_osfs_lock);
6284 rc = class_disconnect(exp); /* bz 9811 */
6286 if (rc == 0 && release)
6287 class_manual_cleanup(obd);
6291 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
6292 struct lu_device *dev)
6294 struct osd_device *osd = osd_dev(dev);
6298 if (osd->od_quota_slave != NULL) {
6299 /* set up quota slave objects */
6300 result = qsd_prepare(env, osd->od_quota_slave);
6305 result = osd_fid_init(env, osd);
6310 int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
6311 struct lu_fid *fid, struct md_op_data *op_data)
6313 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
6315 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
6318 static const struct lu_object_operations osd_lu_obj_ops = {
6319 .loo_object_init = osd_object_init,
6320 .loo_object_delete = osd_object_delete,
6321 .loo_object_release = osd_object_release,
6322 .loo_object_free = osd_object_free,
6323 .loo_object_print = osd_object_print,
6324 .loo_object_invariant = osd_object_invariant
6327 const struct lu_device_operations osd_lu_ops = {
6328 .ldo_object_alloc = osd_object_alloc,
6329 .ldo_process_config = osd_process_config,
6330 .ldo_recovery_complete = osd_recovery_complete,
6331 .ldo_prepare = osd_prepare,
6334 static const struct lu_device_type_operations osd_device_type_ops = {
6335 .ldto_init = osd_type_init,
6336 .ldto_fini = osd_type_fini,
6338 .ldto_start = osd_type_start,
6339 .ldto_stop = osd_type_stop,
6341 .ldto_device_alloc = osd_device_alloc,
6342 .ldto_device_free = osd_device_free,
6344 .ldto_device_init = osd_device_init,
6345 .ldto_device_fini = osd_device_fini
6348 struct lu_device_type osd_device_type = {
6349 .ldt_tags = LU_DEVICE_DT,
6350 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
6351 .ldt_ops = &osd_device_type_ops,
6352 .ldt_ctx_tags = LCT_LOCAL,
6356 * lprocfs legacy support.
6358 static struct obd_ops osd_obd_device_ops = {
6359 .o_owner = THIS_MODULE,
6360 .o_connect = osd_obd_connect,
6361 .o_disconnect = osd_obd_disconnect,
6362 .o_fid_alloc = osd_fid_alloc,
6365 static int __init osd_mod_init(void)
6371 rc = lu_kmem_init(ldiskfs_caches);
6375 rc = class_register_type(&osd_obd_device_ops, NULL, true,
6376 lprocfs_osd_module_vars,
6377 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
6379 lu_kmem_fini(ldiskfs_caches);
6383 static void __exit osd_mod_exit(void)
6385 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
6386 lu_kmem_fini(ldiskfs_caches);
6389 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
6390 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
6391 MODULE_LICENSE("GPL");
6393 cfs_module(osd, "0.1.0", osd_mod_init, osd_mod_exit);