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 + 60 * HZ)) {
1034 libcfs_debug_dumpstack(NULL);
1035 last_credits = oh->ot_credits;
1036 last_printed = jiffies;
1038 /* XXX Limit the credits to 'max_transaction_buffers', and
1039 * let the underlying filesystem to catch the error if
1040 * we really need so many credits.
1042 * This should be removed when we can calculate the
1043 * credits precisely. */
1044 oh->ot_credits = osd_transaction_size(dev);
1048 * XXX temporary stuff. Some abstraction layer should
1051 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1055 LASSERT(oti->oti_txns == 0);
1056 lu_context_init(&th->th_ctx, th->th_tags);
1057 lu_context_enter(&th->th_ctx);
1059 lu_device_get(&d->dd_lu_dev);
1060 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1071 static int osd_seq_exists(const struct lu_env *env,
1072 struct osd_device *osd, obd_seq seq)
1074 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1075 struct seq_server_site *ss = osd_seq_site(osd);
1079 LASSERT(ss != NULL);
1080 LASSERT(ss->ss_server_fld != NULL);
1082 rc = osd_fld_lookup(env, osd, seq, range);
1085 CERROR("%s: can't lookup FLD sequence "LPX64
1086 ": rc = %d\n", osd_name(osd), seq, rc);
1090 RETURN(ss->ss_node_id == range->lsr_index);
1094 * Concurrency: shouldn't matter.
1096 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1100 struct osd_thandle *oh;
1101 struct osd_thread_info *oti = osd_oti_get(env);
1102 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1103 struct qsd_instance *qsd = oti->oti_dev->od_quota_slave;
1104 struct lquota_trans *qtrans;
1107 oh = container_of0(th, struct osd_thandle, ot_super);
1109 qtrans = oh->ot_quota_trans;
1110 oh->ot_quota_trans = NULL;
1112 if (oh->ot_handle != NULL) {
1113 handle_t *hdl = oh->ot_handle;
1116 * add commit callback
1117 * notice we don't do this in osd_trans_start()
1118 * as underlying transaction can change during truncate
1120 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1123 LASSERT(oti->oti_txns == 1);
1125 rc = dt_txn_hook_stop(env, th);
1127 CERROR("Failure in transaction hook: %d\n", rc);
1129 /* hook functions might modify th_sync */
1130 hdl->h_sync = th->th_sync;
1132 oh->ot_handle = NULL;
1133 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
1134 rc = ldiskfs_journal_stop(hdl));
1136 CERROR("Failure to stop transaction: %d\n", rc);
1138 thandle_put(&oh->ot_super);
1141 /* inform the quota slave device that the transaction is stopping */
1142 qsd_op_end(env, qsd, qtrans);
1144 /* as we want IO to journal and data IO be concurrent, we don't block
1145 * awaiting data IO completion in osd_do_bio(), instead we wait here
1146 * once transaction is submitted to the journal. all reqular requests
1147 * don't do direct IO (except read/write), thus this wait_event becomes
1150 * IMPORTANT: we have to wait till any IO submited by the thread is
1151 * completed otherwise iobuf may be corrupted by different request
1153 wait_event(iobuf->dr_wait,
1154 atomic_read(&iobuf->dr_numreqs) == 0);
1155 osd_fini_iobuf(oti->oti_dev, iobuf);
1157 rc = iobuf->dr_error;
1162 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1164 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1167 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1168 LASSERT(&dcb->dcb_func != NULL);
1169 list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
1175 * Called just before object is freed. Releases all resources except for
1176 * object itself (that is released by osd_object_free()).
1178 * Concurrency: no concurrent access is possible that late in object
1181 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1183 struct osd_object *obj = osd_obj(l);
1184 struct inode *inode = obj->oo_inode;
1186 LINVRNT(osd_invariant(obj));
1189 * If object is unlinked remove fid->ino mapping from object index.
1192 osd_index_fini(obj);
1193 if (inode != NULL) {
1194 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1195 qid_t uid = i_uid_read(inode);
1196 qid_t gid = i_gid_read(inode);
1199 obj->oo_inode = NULL;
1202 struct osd_thread_info *info = osd_oti_get(env);
1203 struct lquota_id_info *qi = &info->oti_qi;
1205 /* Release granted quota to master if necessary */
1206 qi->lqi_id.qid_uid = uid;
1207 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
1209 qi->lqi_id.qid_uid = gid;
1210 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
1216 * Concurrency: ->loo_object_release() is called under site spin-lock.
1218 static void osd_object_release(const struct lu_env *env,
1219 struct lu_object *l)
1224 * Concurrency: shouldn't matter.
1226 static int osd_object_print(const struct lu_env *env, void *cookie,
1227 lu_printer_t p, const struct lu_object *l)
1229 struct osd_object *o = osd_obj(l);
1230 struct iam_descr *d;
1232 if (o->oo_dir != NULL)
1233 d = o->oo_dir->od_container.ic_descr;
1236 return (*p)(env, cookie,
1237 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
1239 o->oo_inode ? o->oo_inode->i_ino : 0UL,
1240 o->oo_inode ? o->oo_inode->i_generation : 0,
1241 d ? d->id_ops->id_name : "plain");
1244 #define GRANT_FOR_LOCAL_OIDS 32 /* 128kB for last_rcvd, quota files, ... */
1247 * Concurrency: shouldn't matter.
1249 int osd_statfs(const struct lu_env *env, struct dt_device *d,
1250 struct obd_statfs *sfs)
1252 struct osd_device *osd = osd_dt_dev(d);
1253 struct super_block *sb = osd_sb(osd);
1254 struct kstatfs *ksfs;
1257 if (unlikely(osd->od_mnt == NULL))
1258 return -EINPROGRESS;
1260 /* osd_lproc.c call this without env, allocate ksfs for that case */
1261 if (unlikely(env == NULL)) {
1262 OBD_ALLOC_PTR(ksfs);
1266 ksfs = &osd_oti_get(env)->oti_ksfs;
1269 spin_lock(&osd->od_osfs_lock);
1270 result = sb->s_op->statfs(sb->s_root, ksfs);
1271 if (likely(result == 0)) { /* N.B. statfs can't really fail */
1272 statfs_pack(sfs, ksfs);
1273 if (sb->s_flags & MS_RDONLY)
1274 sfs->os_state = OS_STATE_READONLY;
1277 spin_unlock(&osd->od_osfs_lock);
1279 if (unlikely(env == NULL))
1282 /* Reserve a small amount of space for local objects like last_rcvd,
1283 * llog, quota files, ... */
1284 if (sfs->os_bavail <= GRANT_FOR_LOCAL_OIDS) {
1287 sfs->os_bavail -= GRANT_FOR_LOCAL_OIDS;
1288 /** Take out metadata overhead for indirect blocks */
1289 sfs->os_bavail -= sfs->os_bavail >> (sb->s_blocksize_bits - 3);
1296 * Estimate space needed for file creations. We assume the largest filename
1297 * which is 2^64 - 1, hence a filename of 20 chars.
1298 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
1300 #ifdef __LDISKFS_DIR_REC_LEN
1301 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
1303 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
1307 * Concurrency: doesn't access mutable data.
1309 static void osd_conf_get(const struct lu_env *env,
1310 const struct dt_device *dev,
1311 struct dt_device_param *param)
1313 struct super_block *sb = osd_sb(osd_dt_dev(dev));
1317 * XXX should be taken from not-yet-existing fs abstraction layer.
1319 param->ddp_max_name_len = LDISKFS_NAME_LEN;
1320 param->ddp_max_nlink = LDISKFS_LINK_MAX;
1321 param->ddp_block_shift = sb->s_blocksize_bits;
1322 param->ddp_mount_type = LDD_MT_LDISKFS;
1323 param->ddp_maxbytes = sb->s_maxbytes;
1324 /* Overhead estimate should be fairly accurate, so we really take a tiny
1325 * error margin which also avoids fragmenting the filesystem too much */
1326 param->ddp_grant_reserved = 2; /* end up to be 1.9% after conversion */
1327 /* inode are statically allocated, so per-inode space consumption
1328 * is the space consumed by the directory entry */
1329 param->ddp_inodespace = PER_OBJ_USAGE;
1330 /* per-fragment overhead to be used by the client code */
1331 param->ddp_grant_frag = 6 * LDISKFS_BLOCK_SIZE(sb);
1332 param->ddp_mntopts = 0;
1333 if (test_opt(sb, XATTR_USER))
1334 param->ddp_mntopts |= MNTOPT_USERXATTR;
1335 if (test_opt(sb, POSIX_ACL))
1336 param->ddp_mntopts |= MNTOPT_ACL;
1338 /* LOD might calculate the max stripe count based on max_ea_size,
1339 * so we need take account in the overhead as well,
1340 * xattr_header + magic + xattr_entry_head */
1341 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
1342 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
1344 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1345 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
1346 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
1350 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
1354 * Concurrency: shouldn't matter.
1356 static int osd_sync(const struct lu_env *env, struct dt_device *d)
1358 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1359 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
1363 * Start commit for OSD device.
1365 * An implementation of dt_commit_async method for OSD device.
1366 * Asychronously starts underlayng fs sync and thereby a transaction
1369 * \param env environment
1370 * \param d dt device
1372 * \see dt_device_operations
1374 static int osd_commit_async(const struct lu_env *env,
1375 struct dt_device *d)
1377 struct super_block *s = osd_sb(osd_dt_dev(d));
1380 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1381 RETURN(s->s_op->sync_fs(s, 0));
1385 * Concurrency: shouldn't matter.
1388 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1390 struct super_block *sb = osd_sb(osd_dt_dev(d));
1391 struct block_device *dev = sb->s_bdev;
1392 #ifdef HAVE_DEV_SET_RDONLY
1393 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
1396 int rc = -EOPNOTSUPP;
1400 #ifdef HAVE_DEV_SET_RDONLY
1401 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1403 if (jdev && (jdev != dev)) {
1404 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
1406 dev_set_rdonly(jdev);
1408 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
1409 dev_set_rdonly(dev);
1411 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
1412 osd_dt_dev(d)->od_svname, (long)dev, rc);
1418 * Concurrency: serialization provided by callers.
1420 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
1421 int mode, unsigned long timeout, __u32 alg,
1422 struct lustre_capa_key *keys)
1424 struct osd_device *dev = osd_dt_dev(d);
1427 dev->od_fl_capa = mode;
1428 dev->od_capa_timeout = timeout;
1429 dev->od_capa_alg = alg;
1430 dev->od_capa_keys = keys;
1435 * Note: we do not count into QUOTA here.
1436 * If we mount with --data_journal we may need more.
1438 const int osd_dto_credits_noquota[DTO_NR] = {
1441 * INDEX_EXTRA_TRANS_BLOCKS(8) +
1442 * SINGLEDATA_TRANS_BLOCKS(8)
1443 * XXX Note: maybe iam need more, since iam have more level than
1446 [DTO_INDEX_INSERT] = 16,
1449 * just modify a single entry, probably merge few within a block
1451 [DTO_INDEX_DELETE] = 1,
1455 [DTO_INDEX_UPDATE] = 16,
1457 * 4(inode, inode bits, groups, GDT)
1458 * notice: OI updates are counted separately with DTO_INDEX_INSERT
1460 [DTO_OBJECT_CREATE] = 4,
1462 * 4(inode, inode bits, groups, GDT)
1463 * notice: OI updates are counted separately with DTO_INDEX_DELETE
1465 [DTO_OBJECT_DELETE] = 4,
1467 * Attr set credits (inode)
1469 [DTO_ATTR_SET_BASE] = 1,
1471 * Xattr set. The same as xattr of EXT3.
1472 * DATA_TRANS_BLOCKS(14)
1473 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1474 * are also counted in. Do not know why?
1476 [DTO_XATTR_SET] = 14,
1478 * credits for inode change during write.
1480 [DTO_WRITE_BASE] = 3,
1482 * credits for single block write.
1484 [DTO_WRITE_BLOCK] = 14,
1486 * Attr set credits for chown.
1487 * This is extra credits for setattr, and it is null without quota
1489 [DTO_ATTR_SET_CHOWN] = 0
1492 static const struct dt_device_operations osd_dt_ops = {
1493 .dt_root_get = osd_root_get,
1494 .dt_statfs = osd_statfs,
1495 .dt_trans_create = osd_trans_create,
1496 .dt_trans_start = osd_trans_start,
1497 .dt_trans_stop = osd_trans_stop,
1498 .dt_trans_cb_add = osd_trans_cb_add,
1499 .dt_conf_get = osd_conf_get,
1500 .dt_sync = osd_sync,
1502 .dt_commit_async = osd_commit_async,
1503 .dt_init_capa_ctxt = osd_init_capa_ctxt,
1506 static void osd_object_read_lock(const struct lu_env *env,
1507 struct dt_object *dt, unsigned role)
1509 struct osd_object *obj = osd_dt_obj(dt);
1510 struct osd_thread_info *oti = osd_oti_get(env);
1512 LINVRNT(osd_invariant(obj));
1514 LASSERT(obj->oo_owner != env);
1515 down_read_nested(&obj->oo_sem, role);
1517 LASSERT(obj->oo_owner == NULL);
1521 static void osd_object_write_lock(const struct lu_env *env,
1522 struct dt_object *dt, unsigned role)
1524 struct osd_object *obj = osd_dt_obj(dt);
1525 struct osd_thread_info *oti = osd_oti_get(env);
1527 LINVRNT(osd_invariant(obj));
1529 LASSERT(obj->oo_owner != env);
1530 down_write_nested(&obj->oo_sem, role);
1532 LASSERT(obj->oo_owner == NULL);
1533 obj->oo_owner = env;
1537 static void osd_object_read_unlock(const struct lu_env *env,
1538 struct dt_object *dt)
1540 struct osd_object *obj = osd_dt_obj(dt);
1541 struct osd_thread_info *oti = osd_oti_get(env);
1543 LINVRNT(osd_invariant(obj));
1545 LASSERT(oti->oti_r_locks > 0);
1547 up_read(&obj->oo_sem);
1550 static void osd_object_write_unlock(const struct lu_env *env,
1551 struct dt_object *dt)
1553 struct osd_object *obj = osd_dt_obj(dt);
1554 struct osd_thread_info *oti = osd_oti_get(env);
1556 LINVRNT(osd_invariant(obj));
1558 LASSERT(obj->oo_owner == env);
1559 LASSERT(oti->oti_w_locks > 0);
1561 obj->oo_owner = NULL;
1562 up_write(&obj->oo_sem);
1565 static int osd_object_write_locked(const struct lu_env *env,
1566 struct dt_object *dt)
1568 struct osd_object *obj = osd_dt_obj(dt);
1570 LINVRNT(osd_invariant(obj));
1572 return obj->oo_owner == env;
1575 static int capa_is_sane(const struct lu_env *env,
1576 struct osd_device *dev,
1577 struct lustre_capa *capa,
1578 struct lustre_capa_key *keys)
1580 struct osd_thread_info *oti = osd_oti_get(env);
1581 struct lustre_capa *tcapa = &oti->oti_capa;
1582 struct obd_capa *oc;
1586 oc = capa_lookup(dev->od_capa_hash, capa, 0);
1588 if (capa_is_expired(oc)) {
1589 DEBUG_CAPA(D_ERROR, capa, "expired");
1596 if (capa_is_expired_sec(capa)) {
1597 DEBUG_CAPA(D_ERROR, capa, "expired");
1601 spin_lock(&capa_lock);
1602 for (i = 0; i < 2; i++) {
1603 if (keys[i].lk_keyid == capa->lc_keyid) {
1604 oti->oti_capa_key = keys[i];
1608 spin_unlock(&capa_lock);
1611 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1615 rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1619 if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1620 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1624 oc = capa_add(dev->od_capa_hash, capa);
1630 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1631 struct lustre_capa *capa, __u64 opc)
1633 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1634 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
1635 struct lu_capainfo *lci;
1638 if (!osd->od_fl_capa)
1641 if (capa == BYPASS_CAPA)
1644 lci = lu_capainfo_get(env);
1645 if (unlikely(lci == NULL))
1648 if (lci->lci_auth == LC_ID_NONE)
1652 CERROR("%s: no capability provided for FID "DFID": rc = %d\n",
1653 osd_name(osd), PFID(fid), -EACCES);
1657 if (!lu_fid_eq(fid, &capa->lc_fid)) {
1658 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1663 if (!capa_opc_supported(capa, opc)) {
1664 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1668 rc = capa_is_sane(env, osd, capa, osd->od_capa_keys);
1670 DEBUG_CAPA(D_ERROR, capa, "insane: rc = %d", rc);
1677 static struct timespec *osd_inode_time(const struct lu_env *env,
1678 struct inode *inode, __u64 seconds)
1680 struct osd_thread_info *oti = osd_oti_get(env);
1681 struct timespec *t = &oti->oti_time;
1683 t->tv_sec = seconds;
1685 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1690 static void osd_inode_getattr(const struct lu_env *env,
1691 struct inode *inode, struct lu_attr *attr)
1693 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1694 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1695 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE |
1698 attr->la_atime = LTIME_S(inode->i_atime);
1699 attr->la_mtime = LTIME_S(inode->i_mtime);
1700 attr->la_ctime = LTIME_S(inode->i_ctime);
1701 attr->la_mode = inode->i_mode;
1702 attr->la_size = i_size_read(inode);
1703 attr->la_blocks = inode->i_blocks;
1704 attr->la_uid = i_uid_read(inode);
1705 attr->la_gid = i_gid_read(inode);
1706 attr->la_flags = LDISKFS_I(inode)->i_flags;
1707 attr->la_nlink = inode->i_nlink;
1708 attr->la_rdev = inode->i_rdev;
1709 attr->la_blksize = 1 << inode->i_blkbits;
1710 attr->la_blkbits = inode->i_blkbits;
1713 static int osd_attr_get(const struct lu_env *env,
1714 struct dt_object *dt,
1715 struct lu_attr *attr,
1716 struct lustre_capa *capa)
1718 struct osd_object *obj = osd_dt_obj(dt);
1720 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
1721 LINVRNT(osd_invariant(obj));
1723 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1726 spin_lock(&obj->oo_guard);
1727 osd_inode_getattr(env, obj->oo_inode, attr);
1728 spin_unlock(&obj->oo_guard);
1732 static int osd_declare_attr_set(const struct lu_env *env,
1733 struct dt_object *dt,
1734 const struct lu_attr *attr,
1735 struct thandle *handle)
1737 struct osd_thandle *oh;
1738 struct osd_object *obj;
1739 struct osd_thread_info *info = osd_oti_get(env);
1740 struct lquota_id_info *qi = &info->oti_qi;
1748 LASSERT(dt != NULL);
1749 LASSERT(handle != NULL);
1751 obj = osd_dt_obj(dt);
1752 LASSERT(osd_invariant(obj));
1754 oh = container_of0(handle, struct osd_thandle, ot_super);
1755 LASSERT(oh->ot_handle == NULL);
1757 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
1758 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
1760 if (attr == NULL || obj->oo_inode == NULL)
1763 bspace = obj->oo_inode->i_blocks;
1764 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
1765 bspace = toqb(bspace);
1767 /* Changing ownership is always preformed by super user, it should not
1770 * We still need to call the osd_declare_qid() to calculate the journal
1771 * credits for updating quota accounting files and to trigger quota
1772 * space adjustment once the operation is completed.*/
1773 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
1775 uid = i_uid_read(obj->oo_inode);
1776 qi->lqi_type = USRQUOTA;
1777 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
1778 /* inode accounting */
1779 qi->lqi_is_blk = false;
1781 /* one more inode for the new uid ... */
1782 qi->lqi_id.qid_uid = attr->la_uid;
1784 /* Reserve credits for the new uid */
1785 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
1786 if (rc == -EDQUOT || rc == -EINPROGRESS)
1791 /* and one less inode for the current uid */
1792 qi->lqi_id.qid_uid = uid;
1794 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1795 if (rc == -EDQUOT || rc == -EINPROGRESS)
1800 /* block accounting */
1801 qi->lqi_is_blk = true;
1803 /* more blocks for the new uid ... */
1804 qi->lqi_id.qid_uid = attr->la_uid;
1805 qi->lqi_space = bspace;
1807 * Credits for the new uid has been reserved, re-use "obj"
1808 * to save credit reservation.
1810 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1811 if (rc == -EDQUOT || rc == -EINPROGRESS)
1816 /* and finally less blocks for the current uid */
1817 qi->lqi_id.qid_uid = uid;
1818 qi->lqi_space = -bspace;
1819 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1820 if (rc == -EDQUOT || rc == -EINPROGRESS)
1826 gid = i_gid_read(obj->oo_inode);
1827 qi->lqi_type = GRPQUOTA;
1828 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
1830 /* inode accounting */
1831 qi->lqi_is_blk = false;
1833 /* one more inode for the new gid ... */
1834 qi->lqi_id.qid_gid = attr->la_gid;
1836 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
1837 if (rc == -EDQUOT || rc == -EINPROGRESS)
1842 /* and one less inode for the current gid */
1843 qi->lqi_id.qid_gid = gid;
1845 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1846 if (rc == -EDQUOT || rc == -EINPROGRESS)
1851 /* block accounting */
1852 qi->lqi_is_blk = true;
1854 /* more blocks for the new gid ... */
1855 qi->lqi_id.qid_gid = attr->la_gid;
1856 qi->lqi_space = bspace;
1857 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1858 if (rc == -EDQUOT || rc == -EINPROGRESS)
1863 /* and finally less blocks for the current gid */
1864 qi->lqi_id.qid_gid = gid;
1865 qi->lqi_space = -bspace;
1866 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
1867 if (rc == -EDQUOT || rc == -EINPROGRESS)
1876 static int osd_inode_setattr(const struct lu_env *env,
1877 struct inode *inode, const struct lu_attr *attr)
1879 __u64 bits = attr->la_valid;
1881 /* Only allow set size for regular file */
1882 if (!S_ISREG(inode->i_mode))
1883 bits &= ~(LA_SIZE | LA_BLOCKS);
1888 if (bits & LA_ATIME)
1889 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1890 if (bits & LA_CTIME)
1891 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1892 if (bits & LA_MTIME)
1893 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1894 if (bits & LA_SIZE) {
1895 LDISKFS_I(inode)->i_disksize = attr->la_size;
1896 i_size_write(inode, attr->la_size);
1900 /* OSD should not change "i_blocks" which is used by quota.
1901 * "i_blocks" should be changed by ldiskfs only. */
1902 if (bits & LA_BLOCKS)
1903 inode->i_blocks = attr->la_blocks;
1906 inode->i_mode = (inode->i_mode & S_IFMT) |
1907 (attr->la_mode & ~S_IFMT);
1909 i_uid_write(inode, attr->la_uid);
1911 i_gid_write(inode, attr->la_gid);
1912 if (bits & LA_NLINK)
1913 set_nlink(inode, attr->la_nlink);
1915 inode->i_rdev = attr->la_rdev;
1917 if (bits & LA_FLAGS) {
1918 /* always keep S_NOCMTIME */
1919 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1925 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
1927 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
1928 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
1932 ll_vfs_dq_init(inode);
1934 if (attr->la_valid & LA_UID)
1935 iattr.ia_valid |= ATTR_UID;
1936 if (attr->la_valid & LA_GID)
1937 iattr.ia_valid |= ATTR_GID;
1938 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
1939 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
1941 rc = ll_vfs_dq_transfer(inode, &iattr);
1943 CERROR("%s: quota transfer failed: rc = %d. Is quota "
1944 "enforcement enabled on the ldiskfs "
1945 "filesystem?\n", inode->i_sb->s_id, rc);
1952 static int osd_attr_set(const struct lu_env *env,
1953 struct dt_object *dt,
1954 const struct lu_attr *attr,
1955 struct thandle *handle,
1956 struct lustre_capa *capa)
1958 struct osd_object *obj = osd_dt_obj(dt);
1959 struct inode *inode;
1962 LASSERT(handle != NULL);
1963 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
1964 LASSERT(osd_invariant(obj));
1966 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1969 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
1971 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING)) {
1972 struct osd_thread_info *oti = osd_oti_get(env);
1973 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
1974 struct lu_fid *fid1 = &oti->oti_fid;
1975 struct osd_inode_id *id = &oti->oti_id;
1976 struct iam_path_descr *ipd;
1977 struct iam_container *bag;
1978 struct osd_thandle *oh;
1981 fid_cpu_to_be(fid1, fid0);
1982 memset(id, 1, sizeof(*id));
1983 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
1984 fid0)->oi_dir.od_container;
1985 ipd = osd_idx_ipd_get(env, bag);
1986 if (unlikely(ipd == NULL))
1989 oh = container_of0(handle, struct osd_thandle, ot_super);
1990 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
1991 (const struct iam_rec *)id, ipd);
1992 osd_ipd_put(env, bag, ipd);
1993 return(rc > 0 ? 0 : rc);
1996 inode = obj->oo_inode;
1998 rc = osd_quota_transfer(inode, attr);
2002 spin_lock(&obj->oo_guard);
2003 rc = osd_inode_setattr(env, inode, attr);
2004 spin_unlock(&obj->oo_guard);
2007 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2011 struct dentry *osd_child_dentry_get(const struct lu_env *env,
2012 struct osd_object *obj,
2013 const char *name, const int namelen)
2015 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2018 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2019 umode_t mode, struct dt_allocation_hint *hint,
2023 struct osd_device *osd = osd_obj2dev(obj);
2024 struct osd_thandle *oth;
2025 struct dt_object *parent = NULL;
2026 struct inode *inode;
2028 LINVRNT(osd_invariant(obj));
2029 LASSERT(obj->oo_inode == NULL);
2030 LASSERT(obj->oo_hl_head == NULL);
2032 if (S_ISDIR(mode) && ldiskfs_pdo) {
2033 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2034 if (obj->oo_hl_head == NULL)
2038 oth = container_of(th, struct osd_thandle, ot_super);
2039 LASSERT(oth->ot_handle->h_transaction != NULL);
2041 if (hint && hint->dah_parent)
2042 parent = hint->dah_parent;
2044 inode = ldiskfs_create_inode(oth->ot_handle,
2045 parent ? osd_dt_obj(parent)->oo_inode :
2046 osd_sb(osd)->s_root->d_inode,
2048 if (!IS_ERR(inode)) {
2049 /* Do not update file c/mtime in ldiskfs.
2050 * NB: don't need any lock because no contention at this
2052 inode->i_flags |= S_NOCMTIME;
2054 /* For new created object, it must be consistent,
2055 * and it is unnecessary to scrub against it. */
2056 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2057 obj->oo_inode = inode;
2060 if (obj->oo_hl_head != NULL) {
2061 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2062 obj->oo_hl_head = NULL;
2064 result = PTR_ERR(inode);
2066 LINVRNT(osd_invariant(obj));
2074 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2075 struct lu_attr *attr,
2076 struct dt_allocation_hint *hint,
2077 struct dt_object_format *dof,
2081 struct osd_thandle *oth;
2082 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
2084 LASSERT(S_ISDIR(attr->la_mode));
2086 oth = container_of(th, struct osd_thandle, ot_super);
2087 LASSERT(oth->ot_handle->h_transaction != NULL);
2088 result = osd_mkfile(info, obj, mode, hint, th);
2093 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2094 struct lu_attr *attr,
2095 struct dt_allocation_hint *hint,
2096 struct dt_object_format *dof,
2100 struct osd_thandle *oth;
2101 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2103 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2105 LASSERT(S_ISREG(attr->la_mode));
2107 oth = container_of(th, struct osd_thandle, ot_super);
2108 LASSERT(oth->ot_handle->h_transaction != NULL);
2110 result = osd_mkfile(info, obj, mode, hint, th);
2112 LASSERT(obj->oo_inode != NULL);
2113 if (feat->dif_flags & DT_IND_VARKEY)
2114 result = iam_lvar_create(obj->oo_inode,
2115 feat->dif_keysize_max,
2117 feat->dif_recsize_max,
2120 result = iam_lfix_create(obj->oo_inode,
2121 feat->dif_keysize_max,
2123 feat->dif_recsize_max,
2130 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2131 struct lu_attr *attr,
2132 struct dt_allocation_hint *hint,
2133 struct dt_object_format *dof,
2136 LASSERT(S_ISREG(attr->la_mode));
2137 return osd_mkfile(info, obj, (attr->la_mode &
2138 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2141 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2142 struct lu_attr *attr,
2143 struct dt_allocation_hint *hint,
2144 struct dt_object_format *dof,
2147 LASSERT(S_ISLNK(attr->la_mode));
2148 return osd_mkfile(info, obj, (attr->la_mode &
2149 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2152 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2153 struct lu_attr *attr,
2154 struct dt_allocation_hint *hint,
2155 struct dt_object_format *dof,
2158 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2161 LINVRNT(osd_invariant(obj));
2162 LASSERT(obj->oo_inode == NULL);
2163 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2164 S_ISFIFO(mode) || S_ISSOCK(mode));
2166 result = osd_mkfile(info, obj, mode, hint, th);
2168 LASSERT(obj->oo_inode != NULL);
2170 * This inode should be marked dirty for i_rdev. Currently
2171 * that is done in the osd_attr_init().
2173 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
2176 LINVRNT(osd_invariant(obj));
2180 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2182 struct dt_allocation_hint *hint,
2183 struct dt_object_format *dof,
2186 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2188 osd_obj_type_f result;
2204 result = osd_mk_index;
2215 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
2216 struct dt_object *parent, struct dt_object *child,
2221 ah->dah_parent = parent;
2222 ah->dah_mode = child_mode;
2225 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
2226 struct lu_attr *attr, struct dt_object_format *dof)
2228 struct inode *inode = obj->oo_inode;
2229 __u64 valid = attr->la_valid;
2232 attr->la_valid &= ~(LA_TYPE | LA_MODE);
2234 if (dof->dof_type != DFT_NODE)
2235 attr->la_valid &= ~LA_RDEV;
2236 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
2237 attr->la_valid &= ~LA_ATIME;
2238 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
2239 attr->la_valid &= ~LA_CTIME;
2240 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
2241 attr->la_valid &= ~LA_MTIME;
2243 result = osd_quota_transfer(inode, attr);
2247 if (attr->la_valid != 0) {
2248 result = osd_inode_setattr(info->oti_env, inode, attr);
2250 * The osd_inode_setattr() should always succeed here. The
2251 * only error that could be returned is EDQUOT when we are
2252 * trying to change the UID or GID of the inode. However, this
2253 * should not happen since quota enforcement is no longer
2254 * enabled on ldiskfs (lquota takes care of it).
2256 LASSERTF(result == 0, "%d\n", result);
2257 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2260 attr->la_valid = valid;
2264 * Helper function for osd_object_create()
2266 * \retval 0, on success
2268 static int __osd_object_create(struct osd_thread_info *info,
2269 struct osd_object *obj, struct lu_attr *attr,
2270 struct dt_allocation_hint *hint,
2271 struct dt_object_format *dof,
2277 /* we drop umask so that permissions we pass are not affected */
2278 umask = current->fs->umask;
2279 current->fs->umask = 0;
2281 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
2284 osd_attr_init(info, obj, attr, dof);
2285 osd_object_init0(obj);
2287 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
2288 unlock_new_inode(obj->oo_inode);
2291 /* restore previous umask value */
2292 current->fs->umask = umask;
2298 * Helper function for osd_object_create()
2300 * \retval 0, on success
2302 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
2303 const struct lu_fid *fid, struct thandle *th)
2305 struct osd_thread_info *info = osd_oti_get(env);
2306 struct osd_inode_id *id = &info->oti_id;
2307 struct osd_device *osd = osd_obj2dev(obj);
2308 struct osd_thandle *oh;
2310 LASSERT(obj->oo_inode != NULL);
2312 oh = container_of0(th, struct osd_thandle, ot_super);
2313 LASSERT(oh->ot_handle);
2315 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
2316 return osd_oi_insert(info, osd, fid, id, oh->ot_handle, OI_CHECK_FLD);
2319 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
2320 obd_seq seq, struct lu_seq_range *range)
2322 struct seq_server_site *ss = osd_seq_site(osd);
2324 if (fid_seq_is_idif(seq)) {
2325 fld_range_set_ost(range);
2326 range->lsr_index = idif_ost_idx(seq);
2330 if (!fid_seq_in_fldb(seq)) {
2331 fld_range_set_mdt(range);
2333 /* FIXME: If ss is NULL, it suppose not get lsr_index
2335 range->lsr_index = ss->ss_node_id;
2339 LASSERT(ss != NULL);
2340 fld_range_set_any(range);
2341 /* OSD will only do local fld lookup */
2342 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
2346 * Concurrency: no external locking is necessary.
2348 static int osd_declare_object_create(const struct lu_env *env,
2349 struct dt_object *dt,
2350 struct lu_attr *attr,
2351 struct dt_allocation_hint *hint,
2352 struct dt_object_format *dof,
2353 struct thandle *handle)
2355 struct osd_thandle *oh;
2359 LASSERT(handle != NULL);
2361 oh = container_of0(handle, struct osd_thandle, ot_super);
2362 LASSERT(oh->ot_handle == NULL);
2364 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
2365 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
2366 /* Reuse idle OI block may cause additional one OI block
2368 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2369 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
2371 /* If this is directory, then we expect . and .. to be inserted as
2372 * well. The one directory block always needs to be created for the
2373 * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
2374 * block), there is no danger of needing a tree for the first block.
2376 if (attr && S_ISDIR(attr->la_mode)) {
2377 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2378 osd_dto_credits_noquota[DTO_WRITE_BASE]);
2379 osd_trans_declare_op(env, oh, OSD_OT_INSERT, 0);
2385 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
2386 osd_dt_obj(dt), false, NULL, false);
2393 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
2394 struct lu_attr *attr,
2395 struct dt_allocation_hint *hint,
2396 struct dt_object_format *dof,
2399 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2400 struct osd_object *obj = osd_dt_obj(dt);
2401 struct osd_thread_info *info = osd_oti_get(env);
2406 LINVRNT(osd_invariant(obj));
2407 LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
2408 LASSERT(osd_write_locked(env, obj));
2409 LASSERT(th != NULL);
2411 if (unlikely(fid_is_acct(fid)))
2412 /* Quota files can't be created from the kernel any more,
2413 * 'tune2fs -O quota' will take care of creating them */
2416 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2417 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2419 result = __osd_object_create(info, obj, attr, hint, dof, th);
2421 result = __osd_oi_insert(env, obj, fid, th);
2423 LASSERT(ergo(result == 0,
2424 dt_object_exists(dt) && !dt_object_remote(dt)));
2426 LASSERT(osd_invariant(obj));
2431 * Called to destroy on-disk representation of the object
2433 * Concurrency: must be locked
2435 static int osd_declare_object_destroy(const struct lu_env *env,
2436 struct dt_object *dt,
2439 struct osd_object *obj = osd_dt_obj(dt);
2440 struct inode *inode = obj->oo_inode;
2441 struct osd_thandle *oh;
2445 oh = container_of0(th, struct osd_thandle, ot_super);
2446 LASSERT(oh->ot_handle == NULL);
2449 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
2450 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
2451 /* Recycle idle OI leaf may cause additional three OI blocks
2453 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
2454 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
2455 /* one less inode */
2456 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2457 -1, oh, obj, false, NULL, false);
2460 /* data to be truncated */
2461 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2462 0, oh, obj, true, NULL, false);
2466 static int osd_object_destroy(const struct lu_env *env,
2467 struct dt_object *dt,
2470 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2471 struct osd_object *obj = osd_dt_obj(dt);
2472 struct inode *inode = obj->oo_inode;
2473 struct osd_device *osd = osd_obj2dev(obj);
2474 struct osd_thandle *oh;
2478 oh = container_of0(th, struct osd_thandle, ot_super);
2479 LASSERT(oh->ot_handle);
2481 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2483 if (unlikely(fid_is_acct(fid)))
2486 if (S_ISDIR(inode->i_mode)) {
2487 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
2488 inode->i_nlink == 2);
2489 /* it will check/delete the inode from remote parent,
2490 * how to optimize it? unlink performance impaction XXX */
2491 result = osd_delete_from_remote_parent(env, osd, obj, oh);
2492 if (result != 0 && result != -ENOENT) {
2493 CERROR("%s: delete inode "DFID": rc = %d\n",
2494 osd_name(osd), PFID(fid), result);
2496 spin_lock(&obj->oo_guard);
2498 spin_unlock(&obj->oo_guard);
2499 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2502 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
2504 result = osd_oi_delete(osd_oti_get(env), osd, fid, oh->ot_handle,
2507 /* XXX: add to ext3 orphan list */
2508 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2510 /* not needed in the cache anymore */
2511 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2517 * Put the fid into lustre_mdt_attrs, and then place the structure
2518 * inode's ea. This fid should not be altered during the life time
2521 * \retval +ve, on success
2522 * \retval -ve, on error
2524 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2526 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
2527 const struct lu_fid *fid, __u32 compat, __u32 incompat)
2529 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
2533 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
2536 lustre_lma_init(lma, fid, compat, incompat);
2537 lustre_lma_swab(lma);
2539 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma, sizeof(*lma),
2541 /* LMA may already exist, but we need to check that all the
2542 * desired compat/incompat flags have been added. */
2543 if (unlikely(rc == -EEXIST)) {
2544 if (compat == 0 && incompat == 0)
2547 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
2548 XATTR_NAME_LMA, info->oti_mdt_attrs_old,
2553 lustre_lma_swab(lma);
2554 if (!(~lma->lma_compat & compat) &&
2555 !(~lma->lma_incompat & incompat))
2558 lma->lma_compat |= compat;
2559 lma->lma_incompat |= incompat;
2560 lustre_lma_swab(lma);
2561 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
2562 sizeof(*lma), XATTR_REPLACE);
2569 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2570 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2571 * To have compatilibility with 1.8 ldiskfs driver we need to have
2572 * magic number at start of fid data.
2573 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2576 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2577 const struct lu_fid *fid)
2579 if (!fid_is_namespace_visible(fid) ||
2580 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
2581 param->edp_magic = 0;
2585 param->edp_magic = LDISKFS_LUFID_MAGIC;
2586 param->edp_len = sizeof(struct lu_fid) + 1;
2587 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
2591 * Try to read the fid from inode ea into dt_rec.
2593 * \param fid object fid.
2595 * \retval 0 on success
2597 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2598 __u32 ino, struct lu_fid *fid,
2599 struct osd_inode_id *id)
2601 struct osd_thread_info *info = osd_oti_get(env);
2602 struct inode *inode;
2605 osd_id_gen(id, ino, OSD_OII_NOGEN);
2606 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2608 RETURN(PTR_ERR(inode));
2614 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
2616 struct inode *parent_dir,
2617 const struct lu_fid *dot_fid,
2618 const struct lu_fid *dot_dot_fid,
2619 struct osd_thandle *oth)
2621 struct ldiskfs_dentry_param *dot_ldp;
2622 struct ldiskfs_dentry_param *dot_dot_ldp;
2624 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
2625 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
2627 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
2628 dot_ldp->edp_magic = 0;
2629 return ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
2630 dir, dot_ldp, dot_dot_ldp);
2634 * Create an local agent inode for remote entry
2636 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
2637 struct osd_device *osd,
2638 struct osd_object *pobj,
2639 const struct lu_fid *fid,
2643 struct osd_thread_info *info = osd_oti_get(env);
2644 struct inode *local;
2645 struct osd_thandle *oh;
2650 oh = container_of(th, struct osd_thandle, ot_super);
2651 LASSERT(oh->ot_handle->h_transaction != NULL);
2653 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
2654 if (IS_ERR(local)) {
2655 CERROR("%s: create local error %d\n", osd_name(osd),
2656 (int)PTR_ERR(local));
2660 /* Set special LMA flag for local agent inode */
2661 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
2663 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
2664 osd_name(osd), PFID(fid), rc);
2665 RETURN(ERR_PTR(rc));
2671 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
2672 lu_object_fid(&pobj->oo_dt.do_lu),
2675 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
2676 osd_name(osd), PFID(fid), rc);
2677 RETURN(ERR_PTR(rc));
2684 * Delete local agent inode for remote entry
2686 static int osd_delete_local_agent_inode(const struct lu_env *env,
2687 struct osd_device *osd,
2688 const struct lu_fid *fid,
2689 __u32 ino, struct osd_thandle *oh)
2691 struct osd_thread_info *oti = osd_oti_get(env);
2692 struct osd_inode_id *id = &oti->oti_id;
2693 struct inode *inode;
2696 id->oii_ino = le32_to_cpu(ino);
2697 id->oii_gen = OSD_OII_NOGEN;
2698 inode = osd_iget(oti, osd, id);
2699 if (IS_ERR(inode)) {
2700 CERROR("%s: iget error "DFID" id %u:%u\n", osd_name(osd),
2701 PFID(fid), id->oii_ino, id->oii_gen);
2702 RETURN(PTR_ERR(inode));
2706 mark_inode_dirty(inode);
2707 CDEBUG(D_INODE, "%s: delete remote inode "DFID" %lu\n",
2708 osd_name(osd), PFID(fid), inode->i_ino);
2714 * OSD layer object create function for interoperability mode (b11826).
2715 * This is mostly similar to osd_object_create(). Only difference being, fid is
2716 * inserted into inode ea here.
2718 * \retval 0, on success
2719 * \retval -ve, on error
2721 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
2722 struct lu_attr *attr,
2723 struct dt_allocation_hint *hint,
2724 struct dt_object_format *dof,
2727 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2728 struct osd_object *obj = osd_dt_obj(dt);
2729 struct osd_thread_info *info = osd_oti_get(env);
2734 LASSERT(osd_invariant(obj));
2735 LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
2736 LASSERT(osd_write_locked(env, obj));
2737 LASSERT(th != NULL);
2739 if (unlikely(fid_is_acct(fid)))
2740 /* Quota files can't be created from the kernel any more,
2741 * 'tune2fs -O quota' will take care of creating them */
2744 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2745 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2747 result = __osd_object_create(info, obj, attr, hint, dof, th);
2749 result = osd_ea_fid_set(info, obj->oo_inode, fid,
2750 fid_is_on_ost(info, osd_obj2dev(obj),
2751 fid, OI_CHECK_FLD) ?
2752 LMAC_FID_ON_OST : 0, 0);
2755 result = __osd_oi_insert(env, obj, fid, th);
2757 LASSERT(ergo(result == 0,
2758 dt_object_exists(dt) && !dt_object_remote(dt)));
2759 LINVRNT(osd_invariant(obj));
2763 static int osd_declare_object_ref_add(const struct lu_env *env,
2764 struct dt_object *dt,
2765 struct thandle *handle)
2767 struct osd_thandle *oh;
2769 /* it's possible that object doesn't exist yet */
2770 LASSERT(handle != NULL);
2772 oh = container_of0(handle, struct osd_thandle, ot_super);
2773 LASSERT(oh->ot_handle == NULL);
2775 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
2776 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2782 * Concurrency: @dt is write locked.
2784 static int osd_object_ref_add(const struct lu_env *env,
2785 struct dt_object *dt, struct thandle *th)
2787 struct osd_object *obj = osd_dt_obj(dt);
2788 struct inode *inode = obj->oo_inode;
2789 struct osd_thandle *oh;
2792 LINVRNT(osd_invariant(obj));
2793 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2794 LASSERT(osd_write_locked(env, obj));
2795 LASSERT(th != NULL);
2797 oh = container_of0(th, struct osd_thandle, ot_super);
2798 LASSERT(oh->ot_handle != NULL);
2800 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
2802 CDEBUG(D_INODE, DFID" increase nlink %d\n",
2803 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
2805 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
2806 * (65000) subdirectories by storing "1" in i_nlink if the link count
2807 * would otherwise overflow. Directory tranversal tools understand
2808 * that (st_nlink == 1) indicates that the filesystem dose not track
2809 * hard links count on the directory, and will not abort subdirectory
2810 * scanning early once (st_nlink - 2) subdirs have been found.
2812 * This also has to properly handle the case of inodes with nlink == 0
2813 * in case they are being linked into the PENDING directory
2815 spin_lock(&obj->oo_guard);
2816 if (unlikely(inode->i_nlink == 0))
2817 /* inc_nlink from 0 may cause WARN_ON */
2818 set_nlink(inode, 1);
2820 ldiskfs_inc_count(oh->ot_handle, inode);
2821 if (!S_ISDIR(inode->i_mode))
2822 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
2824 spin_unlock(&obj->oo_guard);
2826 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2827 LINVRNT(osd_invariant(obj));
2832 static int osd_declare_object_ref_del(const struct lu_env *env,
2833 struct dt_object *dt,
2834 struct thandle *handle)
2836 struct osd_thandle *oh;
2838 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2839 LASSERT(handle != NULL);
2841 oh = container_of0(handle, struct osd_thandle, ot_super);
2842 LASSERT(oh->ot_handle == NULL);
2844 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
2845 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2851 * Concurrency: @dt is write locked.
2853 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2856 struct osd_object *obj = osd_dt_obj(dt);
2857 struct inode *inode = obj->oo_inode;
2858 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
2859 struct osd_thandle *oh;
2861 LINVRNT(osd_invariant(obj));
2862 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2863 LASSERT(osd_write_locked(env, obj));
2864 LASSERT(th != NULL);
2866 oh = container_of0(th, struct osd_thandle, ot_super);
2867 LASSERT(oh->ot_handle != NULL);
2869 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
2871 spin_lock(&obj->oo_guard);
2872 /* That can be result of upgrade from old Lustre version and
2873 * applied only to local files. Just skip this ref_del call.
2874 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
2875 if (inode->i_nlink == 0) {
2876 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
2877 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
2878 ", maybe an upgraded file? (LU-3915)\n",
2879 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
2880 spin_unlock(&obj->oo_guard);
2884 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
2885 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
2887 ldiskfs_dec_count(oh->ot_handle, inode);
2888 spin_unlock(&obj->oo_guard);
2890 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2891 LINVRNT(osd_invariant(obj));
2897 * Get the 64-bit version for an inode.
2899 static int osd_object_version_get(const struct lu_env *env,
2900 struct dt_object *dt, dt_obj_version_t *ver)
2902 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2904 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2905 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2906 *ver = LDISKFS_I(inode)->i_fs_version;
2911 * Concurrency: @dt is read locked.
2913 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2914 struct lu_buf *buf, const char *name,
2915 struct lustre_capa *capa)
2917 struct osd_object *obj = osd_dt_obj(dt);
2918 struct inode *inode = obj->oo_inode;
2919 struct osd_thread_info *info = osd_oti_get(env);
2920 struct dentry *dentry = &info->oti_obj_dentry;
2922 /* version get is not real XATTR but uses xattr API */
2923 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2924 /* for version we are just using xattr API but change inode
2926 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2927 osd_object_version_get(env, dt, buf->lb_buf);
2928 return sizeof(dt_obj_version_t);
2931 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2932 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
2934 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2937 return __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
2941 static int osd_declare_xattr_set(const struct lu_env *env,
2942 struct dt_object *dt,
2943 const struct lu_buf *buf, const char *name,
2944 int fl, struct thandle *handle)
2946 struct osd_thandle *oh;
2948 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
2950 LASSERT(handle != NULL);
2952 oh = container_of0(handle, struct osd_thandle, ot_super);
2953 LASSERT(oh->ot_handle == NULL);
2955 /* optimistic optimization: LMA is set first and usually fit inode */
2956 if (strcmp(name, XATTR_NAME_LMA) == 0) {
2957 if (dt_object_exists(dt))
2961 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2964 credits = osd_dto_credits_noquota[DTO_XATTR_SET];
2965 if (buf && buf->lb_len > sb->s_blocksize) {
2966 credits *= (buf->lb_len + sb->s_blocksize - 1) >>
2967 sb->s_blocksize_bits;
2970 * xattr set may involve inode quota change, reserve credits for
2971 * dquot_initialize()
2973 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
2976 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
2982 * Set the 64-bit version for object
2984 static void osd_object_version_set(const struct lu_env *env,
2985 struct dt_object *dt,
2986 dt_obj_version_t *new_version)
2988 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2990 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
2991 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2993 LDISKFS_I(inode)->i_fs_version = *new_version;
2994 /** Version is set after all inode operations are finished,
2995 * so we should mark it dirty here */
2996 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3000 * Concurrency: @dt is write locked.
3002 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
3003 const struct lu_buf *buf, const char *name, int fl,
3004 struct thandle *handle, struct lustre_capa *capa)
3006 struct osd_object *obj = osd_dt_obj(dt);
3007 struct inode *inode = obj->oo_inode;
3008 struct osd_thread_info *info = osd_oti_get(env);
3012 LASSERT(handle != NULL);
3014 /* version set is not real XATTR */
3015 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3016 /* for version we are just using xattr API but change inode
3018 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
3019 osd_object_version_set(env, dt, buf->lb_buf);
3020 return sizeof(dt_obj_version_t);
3023 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
3026 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zd\n",
3027 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
3029 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3030 if (fl & LU_XATTR_REPLACE)
3031 fs_flags |= XATTR_REPLACE;
3033 if (fl & LU_XATTR_CREATE)
3034 fs_flags |= XATTR_CREATE;
3036 if (strcmp(name, XATTR_NAME_LMV) == 0) {
3037 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
3040 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
3044 lma->lma_incompat |= LMAI_STRIPED;
3045 lustre_lma_swab(lma);
3046 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3047 sizeof(*lma), XATTR_REPLACE);
3052 return __osd_xattr_set(info, inode, name, buf->lb_buf, buf->lb_len,
3057 * Concurrency: @dt is read locked.
3059 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
3060 struct lu_buf *buf, struct lustre_capa *capa)
3062 struct osd_object *obj = osd_dt_obj(dt);
3063 struct inode *inode = obj->oo_inode;
3064 struct osd_thread_info *info = osd_oti_get(env);
3065 struct dentry *dentry = &info->oti_obj_dentry;
3067 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3068 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
3070 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
3073 dentry->d_inode = inode;
3074 dentry->d_sb = inode->i_sb;
3075 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
3078 static int osd_declare_xattr_del(const struct lu_env *env,
3079 struct dt_object *dt, const char *name,
3080 struct thandle *handle)
3082 struct osd_thandle *oh;
3083 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3085 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3086 LASSERT(handle != NULL);
3088 oh = container_of0(handle, struct osd_thandle, ot_super);
3089 LASSERT(oh->ot_handle == NULL);
3091 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
3092 osd_dto_credits_noquota[DTO_XATTR_SET]);
3094 * xattr del may involve inode quota change, reserve credits for
3095 * dquot_initialize()
3097 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
3103 * Concurrency: @dt is write locked.
3105 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
3106 const char *name, struct thandle *handle,
3107 struct lustre_capa *capa)
3109 struct osd_object *obj = osd_dt_obj(dt);
3110 struct inode *inode = obj->oo_inode;
3111 struct osd_thread_info *info = osd_oti_get(env);
3112 struct dentry *dentry = &info->oti_obj_dentry;
3115 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3116 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
3117 LASSERT(handle != NULL);
3119 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
3122 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3124 ll_vfs_dq_init(inode);
3125 dentry->d_inode = inode;
3126 dentry->d_sb = inode->i_sb;
3127 rc = inode->i_op->removexattr(dentry, name);
3131 static struct obd_capa *osd_capa_get(const struct lu_env *env,
3132 struct dt_object *dt,
3133 struct lustre_capa *old, __u64 opc)
3135 struct osd_thread_info *info = osd_oti_get(env);
3136 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3137 struct osd_object *obj = osd_dt_obj(dt);
3138 struct osd_device *osd = osd_obj2dev(obj);
3139 struct lustre_capa_key *key = &info->oti_capa_key;
3140 struct lustre_capa *capa = &info->oti_capa;
3141 struct obd_capa *oc;
3142 struct lu_capainfo *lci;
3146 if (!osd->od_fl_capa)
3147 RETURN(ERR_PTR(-ENOENT));
3149 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3150 LINVRNT(osd_invariant(obj));
3152 /* renewal sanity check */
3153 if (old && osd_object_auth(env, dt, old, opc))
3154 RETURN(ERR_PTR(-EACCES));
3156 lci = lu_capainfo_get(env);
3157 if (unlikely(lci == NULL))
3158 RETURN(ERR_PTR(-ENOENT));
3160 switch (lci->lci_auth) {
3164 capa->lc_uid = i_uid_read(obj->oo_inode);
3165 capa->lc_gid = i_gid_read(obj->oo_inode);
3166 capa->lc_flags = LC_ID_PLAIN;
3168 case LC_ID_CONVERT: {
3171 s[0] = i_uid_read(obj->oo_inode);
3172 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
3173 s[2] = i_uid_read(obj->oo_inode);
3174 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
3175 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
3177 RETURN(ERR_PTR(rc));
3179 capa->lc_uid = ((__u64)d[1] << 32) | d[0];
3180 capa->lc_gid = ((__u64)d[3] << 32) | d[2];
3181 capa->lc_flags = LC_ID_CONVERT;
3185 RETURN(ERR_PTR(-EINVAL));
3188 capa->lc_fid = *fid;
3190 capa->lc_flags |= osd->od_capa_alg << 24;
3191 capa->lc_timeout = osd->od_capa_timeout;
3192 capa->lc_expiry = 0;
3194 oc = capa_lookup(osd->od_capa_hash, capa, 1);
3196 LASSERT(!capa_is_expired(oc));
3200 spin_lock(&capa_lock);
3201 *key = osd->od_capa_keys[1];
3202 spin_unlock(&capa_lock);
3204 capa->lc_keyid = key->lk_keyid;
3205 capa->lc_expiry = cfs_time_current_sec() + osd->od_capa_timeout;
3207 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
3209 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
3210 RETURN(ERR_PTR(rc));
3213 oc = capa_add(osd->od_capa_hash, capa);
3217 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
3218 __u64 start, __u64 end)
3220 struct osd_object *obj = osd_dt_obj(dt);
3221 struct inode *inode = obj->oo_inode;
3222 struct osd_thread_info *info = osd_oti_get(env);
3223 struct dentry *dentry = &info->oti_obj_dentry;
3224 struct file *file = &info->oti_file;
3229 dentry->d_inode = inode;
3230 dentry->d_sb = inode->i_sb;
3231 file->f_dentry = dentry;
3232 file->f_mapping = inode->i_mapping;
3233 file->f_op = inode->i_fop;
3234 set_file_inode(file, inode);
3236 #ifdef HAVE_FILE_FSYNC_4ARGS
3237 rc = file->f_op->fsync(file, start, end, 0);
3238 #elif defined(HAVE_FILE_FSYNC_2ARGS)
3239 mutex_lock(&inode->i_mutex);
3240 rc = file->f_op->fsync(file, 0);
3241 mutex_unlock(&inode->i_mutex);
3243 mutex_lock(&inode->i_mutex);
3244 rc = file->f_op->fsync(file, dentry, 0);
3245 mutex_unlock(&inode->i_mutex);
3251 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
3254 struct osd_object *obj = osd_dt_obj(dt);
3257 *data = (void *)obj->oo_inode;
3265 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
3266 const struct dt_index_features *feat)
3268 struct iam_descr *descr;
3270 if (osd_object_is_root(o))
3271 return feat == &dt_directory_features;
3273 LASSERT(o->oo_dir != NULL);
3275 descr = o->oo_dir->od_container.ic_descr;
3276 if (feat == &dt_directory_features) {
3277 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
3283 feat->dif_keysize_min <= descr->id_key_size &&
3284 descr->id_key_size <= feat->dif_keysize_max &&
3285 feat->dif_recsize_min <= descr->id_rec_size &&
3286 descr->id_rec_size <= feat->dif_recsize_max &&
3287 !(feat->dif_flags & (DT_IND_VARKEY |
3288 DT_IND_VARREC | DT_IND_NONUNQ)) &&
3289 ergo(feat->dif_flags & DT_IND_UPDATE,
3290 1 /* XXX check that object (and file system) is
3295 static int osd_iam_container_init(const struct lu_env *env,
3296 struct osd_object *obj,
3297 struct osd_directory *dir)
3299 struct iam_container *bag = &dir->od_container;
3302 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
3306 result = iam_container_setup(bag);
3308 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
3310 iam_container_fini(bag);
3317 * Concurrency: no external locking is necessary.
3319 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
3320 const struct dt_index_features *feat)
3324 struct osd_object *obj = osd_dt_obj(dt);
3326 LINVRNT(osd_invariant(obj));
3328 if (osd_object_is_root(obj)) {
3329 dt->do_index_ops = &osd_index_ea_ops;
3331 } else if (feat == &dt_directory_features) {
3332 dt->do_index_ops = &osd_index_ea_ops;
3333 if (obj->oo_inode != NULL && S_ISDIR(obj->oo_inode->i_mode))
3338 } else if (unlikely(feat == &dt_otable_features)) {
3339 dt->do_index_ops = &osd_otable_ops;
3341 } else if (unlikely(feat == &dt_acct_features)) {
3342 dt->do_index_ops = &osd_acct_index_ops;
3345 } else if (!osd_has_index(obj)) {
3346 struct osd_directory *dir;
3351 spin_lock(&obj->oo_guard);
3352 if (obj->oo_dir == NULL)
3356 * Concurrent thread allocated container data.
3359 spin_unlock(&obj->oo_guard);
3361 * Now, that we have container data, serialize its
3364 down_write(&obj->oo_ext_idx_sem);
3366 * recheck under lock.
3368 if (!osd_has_index(obj))
3369 result = osd_iam_container_init(env, obj,
3373 up_write(&obj->oo_ext_idx_sem);
3381 if (result == 0 && skip_iam == 0) {
3382 if (!osd_iam_index_probe(env, obj, feat))
3385 LINVRNT(osd_invariant(obj));
3387 if (result == 0 && is_quota_glb_feat(feat) &&
3388 fid_seq(lu_object_fid(&dt->do_lu)) == FID_SEQ_QUOTA_GLB)
3389 result = osd_quota_migration(env, dt, feat);
3394 static int osd_otable_it_attr_get(const struct lu_env *env,
3395 struct dt_object *dt,
3396 struct lu_attr *attr,
3397 struct lustre_capa *capa)
3403 static const struct dt_object_operations osd_obj_ops = {
3404 .do_read_lock = osd_object_read_lock,
3405 .do_write_lock = osd_object_write_lock,
3406 .do_read_unlock = osd_object_read_unlock,
3407 .do_write_unlock = osd_object_write_unlock,
3408 .do_write_locked = osd_object_write_locked,
3409 .do_attr_get = osd_attr_get,
3410 .do_declare_attr_set = osd_declare_attr_set,
3411 .do_attr_set = osd_attr_set,
3412 .do_ah_init = osd_ah_init,
3413 .do_declare_create = osd_declare_object_create,
3414 .do_create = osd_object_create,
3415 .do_declare_destroy = osd_declare_object_destroy,
3416 .do_destroy = osd_object_destroy,
3417 .do_index_try = osd_index_try,
3418 .do_declare_ref_add = osd_declare_object_ref_add,
3419 .do_ref_add = osd_object_ref_add,
3420 .do_declare_ref_del = osd_declare_object_ref_del,
3421 .do_ref_del = osd_object_ref_del,
3422 .do_xattr_get = osd_xattr_get,
3423 .do_declare_xattr_set = osd_declare_xattr_set,
3424 .do_xattr_set = osd_xattr_set,
3425 .do_declare_xattr_del = osd_declare_xattr_del,
3426 .do_xattr_del = osd_xattr_del,
3427 .do_xattr_list = osd_xattr_list,
3428 .do_capa_get = osd_capa_get,
3429 .do_object_sync = osd_object_sync,
3430 .do_data_get = osd_data_get,
3434 * dt_object_operations for interoperability mode
3435 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
3437 static const struct dt_object_operations osd_obj_ea_ops = {
3438 .do_read_lock = osd_object_read_lock,
3439 .do_write_lock = osd_object_write_lock,
3440 .do_read_unlock = osd_object_read_unlock,
3441 .do_write_unlock = osd_object_write_unlock,
3442 .do_write_locked = osd_object_write_locked,
3443 .do_attr_get = osd_attr_get,
3444 .do_declare_attr_set = osd_declare_attr_set,
3445 .do_attr_set = osd_attr_set,
3446 .do_ah_init = osd_ah_init,
3447 .do_declare_create = osd_declare_object_create,
3448 .do_create = osd_object_ea_create,
3449 .do_declare_destroy = osd_declare_object_destroy,
3450 .do_destroy = osd_object_destroy,
3451 .do_index_try = osd_index_try,
3452 .do_declare_ref_add = osd_declare_object_ref_add,
3453 .do_ref_add = osd_object_ref_add,
3454 .do_declare_ref_del = osd_declare_object_ref_del,
3455 .do_ref_del = osd_object_ref_del,
3456 .do_xattr_get = osd_xattr_get,
3457 .do_declare_xattr_set = osd_declare_xattr_set,
3458 .do_xattr_set = osd_xattr_set,
3459 .do_declare_xattr_del = osd_declare_xattr_del,
3460 .do_xattr_del = osd_xattr_del,
3461 .do_xattr_list = osd_xattr_list,
3462 .do_capa_get = osd_capa_get,
3463 .do_object_sync = osd_object_sync,
3464 .do_data_get = osd_data_get,
3467 static const struct dt_object_operations osd_obj_otable_it_ops = {
3468 .do_attr_get = osd_otable_it_attr_get,
3469 .do_index_try = osd_index_try,
3472 static int osd_index_declare_iam_delete(const struct lu_env *env,
3473 struct dt_object *dt,
3474 const struct dt_key *key,
3475 struct thandle *handle)
3477 struct osd_thandle *oh;
3479 oh = container_of0(handle, struct osd_thandle, ot_super);
3480 LASSERT(oh->ot_handle == NULL);
3482 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3483 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3489 * delete a (key, value) pair from index \a dt specified by \a key
3491 * \param dt osd index object
3492 * \param key key for index
3493 * \param rec record reference
3494 * \param handle transaction handler
3497 * \retval -ve failure
3500 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
3501 const struct dt_key *key,
3502 struct thandle *handle,
3503 struct lustre_capa *capa)
3505 struct osd_thread_info *oti = osd_oti_get(env);
3506 struct osd_object *obj = osd_dt_obj(dt);
3507 struct osd_thandle *oh;
3508 struct iam_path_descr *ipd;
3509 struct iam_container *bag = &obj->oo_dir->od_container;
3514 LINVRNT(osd_invariant(obj));
3515 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3516 LASSERT(bag->ic_object == obj->oo_inode);
3517 LASSERT(handle != NULL);
3519 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3522 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3524 ipd = osd_idx_ipd_get(env, bag);
3525 if (unlikely(ipd == NULL))
3528 oh = container_of0(handle, struct osd_thandle, ot_super);
3529 LASSERT(oh->ot_handle != NULL);
3530 LASSERT(oh->ot_handle->h_transaction != NULL);
3532 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3533 /* swab quota uid/gid provided by caller */
3534 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3535 key = (const struct dt_key *)&oti->oti_quota_id;
3538 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
3539 osd_ipd_put(env, bag, ipd);
3540 LINVRNT(osd_invariant(obj));
3544 static int osd_index_declare_ea_delete(const struct lu_env *env,
3545 struct dt_object *dt,
3546 const struct dt_key *key,
3547 struct thandle *handle)
3549 struct osd_thandle *oh;
3550 struct inode *inode;
3554 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3555 LASSERT(handle != NULL);
3557 oh = container_of0(handle, struct osd_thandle, ot_super);
3558 LASSERT(oh->ot_handle == NULL);
3560 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3561 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3563 inode = osd_dt_obj(dt)->oo_inode;
3566 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3567 0, oh, osd_dt_obj(dt), true, NULL, false);
3571 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
3574 struct osd_fid_pack *rec;
3577 if (de->file_type & LDISKFS_DIRENT_LUFID) {
3578 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
3579 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
3584 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
3585 const struct lu_fid *fid)
3587 struct seq_server_site *ss = osd_seq_site(osd);
3590 /* FID seqs not in FLDB, must be local seq */
3591 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
3594 /* If FLD is not being initialized yet, it only happens during the
3595 * initialization, likely during mgs initialization, and we assume
3596 * this is local FID. */
3597 if (ss == NULL || ss->ss_server_fld == NULL)
3600 /* Only check the local FLDB here */
3601 if (osd_seq_exists(env, osd, fid_seq(fid)))
3608 * Index delete function for interoperability mode (b11826).
3609 * It will remove the directory entry added by osd_index_ea_insert().
3610 * This entry is needed to maintain name->fid mapping.
3612 * \param key, key i.e. file entry to be deleted
3614 * \retval 0, on success
3615 * \retval -ve, on error
3617 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
3618 const struct dt_key *key,
3619 struct thandle *handle,
3620 struct lustre_capa *capa)
3622 struct osd_object *obj = osd_dt_obj(dt);
3623 struct inode *dir = obj->oo_inode;
3624 struct dentry *dentry;
3625 struct osd_thandle *oh;
3626 struct ldiskfs_dir_entry_2 *de = NULL;
3627 struct buffer_head *bh;
3628 struct htree_lock *hlock = NULL;
3629 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
3630 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3634 LINVRNT(osd_invariant(obj));
3635 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3636 LASSERT(handle != NULL);
3638 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3640 oh = container_of(handle, struct osd_thandle, ot_super);
3641 LASSERT(oh->ot_handle != NULL);
3642 LASSERT(oh->ot_handle->h_transaction != NULL);
3644 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3647 ll_vfs_dq_init(dir);
3648 dentry = osd_child_dentry_get(env, obj,
3649 (char *)key, strlen((char *)key));
3651 if (obj->oo_hl_head != NULL) {
3652 hlock = osd_oti_get(env)->oti_hlock;
3653 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3654 dir, LDISKFS_HLOCK_DEL);
3656 down_write(&obj->oo_ext_idx_sem);
3659 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
3663 /* If this is not the ".." entry, it might be a remote DNE
3664 * entry and we need to check if the FID is for a remote
3665 * MDT. If the FID is not in the directory entry (e.g.
3666 * upgraded 1.8 filesystem without dirdata enabled) then
3667 * we need to get the FID from the LMA. For a remote directory
3668 * there HAS to be an LMA, it cannot be an IGIF inode in this
3671 * Delete the entry before the agent inode in order to
3672 * simplify error handling. At worst an error after deleting
3673 * the entry first might leak the agent inode afterward. The
3674 * reverse would need filesystem abort in case of error deleting
3675 * the entry after the agent had been removed, or leave a
3676 * dangling entry pointing at a random inode. */
3677 if (strcmp((char *)key, dotdot) != 0) {
3678 LASSERT(de != NULL);
3679 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
3680 /* If Fid is not in dentry, try to get it from LMA */
3681 if (rc == -ENODATA) {
3682 struct osd_inode_id *id;
3683 struct inode *inode;
3685 /* Before trying to get fid from the inode,
3686 * check whether the inode is valid.
3688 * If the inode has been deleted, do not go
3689 * ahead to do osd_ea_fid_get, which will set
3690 * the inode to bad inode, which might cause
3691 * the inode to be deleted uncorrectly */
3692 inode = ldiskfs_iget(osd_sb(osd),
3693 le32_to_cpu(de->inode));
3694 if (IS_ERR(inode)) {
3695 CDEBUG(D_INODE, "%s: "DFID"get inode"
3696 "error.\n", osd_name(osd),
3698 rc = PTR_ERR(inode);
3700 if (likely(inode->i_nlink != 0)) {
3701 id = &osd_oti_get(env)->oti_id;
3702 rc = osd_ea_fid_get(env, obj,
3703 le32_to_cpu(de->inode),
3706 CDEBUG(D_INFO, "%s: %u "DFID
3709 le32_to_cpu(de->inode),
3717 unlikely(osd_remote_fid(env, osd, fid)))
3718 /* Need to delete agent inode */
3719 ino = le32_to_cpu(de->inode);
3721 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
3723 if (rc == 0 && unlikely(ino != 0)) {
3724 rc = osd_delete_local_agent_inode(env, osd, fid, ino,
3727 CERROR("%s: del local inode "DFID": rc = %d\n",
3728 osd_name(osd), PFID(fid), rc);
3734 ldiskfs_htree_unlock(hlock);
3736 up_write(&obj->oo_ext_idx_sem);
3741 /* For inode on the remote MDT, .. will point to
3742 * /Agent directory, Check whether it needs to delete
3743 * from agent directory */
3744 if (unlikely(strcmp((char *)key, dotdot) == 0)) {
3745 rc = osd_delete_from_remote_parent(env, osd_obj2dev(obj), obj,
3747 if (rc != 0 && rc != -ENOENT) {
3748 CERROR("%s: delete agent inode "DFID": rc = %d\n",
3749 osd_name(osd), PFID(fid), rc);
3759 LASSERT(osd_invariant(obj));
3764 * Lookup index for \a key and copy record to \a rec.
3766 * \param dt osd index object
3767 * \param key key for index
3768 * \param rec record reference
3770 * \retval +ve success : exact mach
3771 * \retval 0 return record with key not greater than \a key
3772 * \retval -ve failure
3774 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
3775 struct dt_rec *rec, const struct dt_key *key,
3776 struct lustre_capa *capa)
3778 struct osd_object *obj = osd_dt_obj(dt);
3779 struct iam_path_descr *ipd;
3780 struct iam_container *bag = &obj->oo_dir->od_container;
3781 struct osd_thread_info *oti = osd_oti_get(env);
3782 struct iam_iterator *it = &oti->oti_idx_it;
3783 struct iam_rec *iam_rec;
3788 LASSERT(osd_invariant(obj));
3789 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3790 LASSERT(bag->ic_object == obj->oo_inode);
3792 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3795 ipd = osd_idx_ipd_get(env, bag);
3799 /* got ipd now we can start iterator. */
3800 iam_it_init(it, bag, 0, ipd);
3802 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3803 /* swab quota uid/gid provided by caller */
3804 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3805 key = (const struct dt_key *)&oti->oti_quota_id;
3808 rc = iam_it_get(it, (struct iam_key *)key);
3810 if (S_ISDIR(obj->oo_inode->i_mode))
3811 iam_rec = (struct iam_rec *)oti->oti_ldp;
3813 iam_rec = (struct iam_rec *) rec;
3815 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
3817 if (S_ISDIR(obj->oo_inode->i_mode))
3818 osd_fid_unpack((struct lu_fid *) rec,
3819 (struct osd_fid_pack *)iam_rec);
3820 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
3821 osd_quota_unpack(obj, rec);
3826 osd_ipd_put(env, bag, ipd);
3828 LINVRNT(osd_invariant(obj));
3833 static int osd_index_declare_iam_insert(const struct lu_env *env,
3834 struct dt_object *dt,
3835 const struct dt_rec *rec,
3836 const struct dt_key *key,
3837 struct thandle *handle)
3839 struct osd_thandle *oh;
3841 LASSERT(handle != NULL);
3843 oh = container_of0(handle, struct osd_thandle, ot_super);
3844 LASSERT(oh->ot_handle == NULL);
3846 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3847 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
3853 * Inserts (key, value) pair in \a dt index object.
3855 * \param dt osd index object
3856 * \param key key for index
3857 * \param rec record reference
3858 * \param th transaction handler
3861 * \retval -ve failure
3863 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
3864 const struct dt_rec *rec,
3865 const struct dt_key *key, struct thandle *th,
3866 struct lustre_capa *capa, int ignore_quota)
3868 struct osd_object *obj = osd_dt_obj(dt);
3869 struct iam_path_descr *ipd;
3870 struct osd_thandle *oh;
3871 struct iam_container *bag = &obj->oo_dir->od_container;
3872 struct osd_thread_info *oti = osd_oti_get(env);
3873 struct iam_rec *iam_rec;
3878 LINVRNT(osd_invariant(obj));
3879 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3880 LASSERT(bag->ic_object == obj->oo_inode);
3881 LASSERT(th != NULL);
3883 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3886 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3888 ipd = osd_idx_ipd_get(env, bag);
3889 if (unlikely(ipd == NULL))
3892 oh = container_of0(th, struct osd_thandle, ot_super);
3893 LASSERT(oh->ot_handle != NULL);
3894 LASSERT(oh->ot_handle->h_transaction != NULL);
3895 if (S_ISDIR(obj->oo_inode->i_mode)) {
3896 iam_rec = (struct iam_rec *)oti->oti_ldp;
3897 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
3898 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3899 /* pack quota uid/gid */
3900 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3901 key = (const struct dt_key *)&oti->oti_quota_id;
3902 /* pack quota record */
3903 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
3904 iam_rec = (struct iam_rec *)rec;
3906 iam_rec = (struct iam_rec *)rec;
3909 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
3911 osd_ipd_put(env, bag, ipd);
3912 LINVRNT(osd_invariant(obj));
3917 * Calls ldiskfs_add_entry() to add directory entry
3918 * into the directory. This is required for
3919 * interoperability mode (b11826)
3921 * \retval 0, on success
3922 * \retval -ve, on error
3924 static int __osd_ea_add_rec(struct osd_thread_info *info,
3925 struct osd_object *pobj, struct inode *cinode,
3926 const char *name, const struct lu_fid *fid,
3927 struct htree_lock *hlock, struct thandle *th)
3929 struct ldiskfs_dentry_param *ldp;
3930 struct dentry *child;
3931 struct osd_thandle *oth;
3934 oth = container_of(th, struct osd_thandle, ot_super);
3935 LASSERT(oth->ot_handle != NULL);
3936 LASSERT(oth->ot_handle->h_transaction != NULL);
3937 LASSERT(pobj->oo_inode);
3939 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3940 if (unlikely(pobj->oo_inode ==
3941 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
3944 osd_get_ldiskfs_dirent_param(ldp, fid);
3945 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
3946 child->d_fsdata = (void *)ldp;
3947 ll_vfs_dq_init(pobj->oo_inode);
3948 rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
3954 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
3955 * into the directory.Also sets flags into osd object to
3956 * indicate dot and dotdot are created. This is required for
3957 * interoperability mode (b11826)
3959 * \param dir directory for dot and dotdot fixup.
3960 * \param obj child object for linking
3962 * \retval 0, on success
3963 * \retval -ve, on error
3965 static int osd_add_dot_dotdot(struct osd_thread_info *info,
3966 struct osd_object *dir,
3967 struct inode *parent_dir, const char *name,
3968 const struct lu_fid *dot_fid,
3969 const struct lu_fid *dot_dot_fid,
3972 struct inode *inode = dir->oo_inode;
3973 struct osd_thandle *oth;
3976 oth = container_of(th, struct osd_thandle, ot_super);
3977 LASSERT(oth->ot_handle->h_transaction != NULL);
3978 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
3980 if (strcmp(name, dot) == 0) {
3981 if (dir->oo_compat_dot_created) {
3984 LASSERT(inode == parent_dir);
3985 dir->oo_compat_dot_created = 1;
3988 } else if (strcmp(name, dotdot) == 0) {
3989 if (!dir->oo_compat_dot_created)
3991 /* in case of rename, dotdot is already created */
3992 if (dir->oo_compat_dotdot_created) {
3993 return __osd_ea_add_rec(info, dir, parent_dir, name,
3994 dot_dot_fid, NULL, th);
3997 result = osd_add_dot_dotdot_internal(info, dir->oo_inode,
3998 parent_dir, dot_fid,
4001 dir->oo_compat_dotdot_created = 1;
4009 * It will call the appropriate osd_add* function and return the
4010 * value, return by respective functions.
4012 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
4013 struct inode *cinode, const char *name,
4014 const struct lu_fid *fid, struct thandle *th)
4016 struct osd_thread_info *info = osd_oti_get(env);
4017 struct htree_lock *hlock;
4020 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
4022 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
4024 if (hlock != NULL) {
4025 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4028 down_write(&pobj->oo_ext_idx_sem);
4031 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
4032 lu_object_fid(&pobj->oo_dt.do_lu),
4035 if (hlock != NULL) {
4036 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4037 pobj->oo_inode, LDISKFS_HLOCK_ADD);
4039 down_write(&pobj->oo_ext_idx_sem);
4042 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
4043 struct lu_fid *tfid = &info->oti_fid;
4047 rc = __osd_ea_add_rec(info, pobj, cinode, name,
4050 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
4055 ldiskfs_htree_unlock(hlock);
4057 up_write(&pobj->oo_ext_idx_sem);
4063 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
4064 struct osd_idmap_cache *oic)
4066 struct osd_scrub *scrub = &dev->od_scrub;
4067 struct lu_fid *fid = &oic->oic_fid;
4068 struct osd_inode_id *id = &oti->oti_id;
4073 if (!fid_is_norm(fid) && !fid_is_igif(fid))
4077 rc = osd_oi_lookup(oti, dev, fid, id, OI_CHECK_FLD);
4078 if (rc != 0 && rc != -ENOENT)
4081 if (rc == 0 && osd_id_eq(id, &oic->oic_lid))
4084 if (thread_is_running(&scrub->os_thread)) {
4085 rc = osd_oii_insert(dev, oic, rc == -ENOENT);
4086 /* There is race condition between osd_oi_lookup and OI scrub.
4087 * The OI scrub finished just after osd_oi_lookup() failure.
4088 * Under such case, it is unnecessary to trigger OI scrub again,
4089 * but try to call osd_oi_lookup() again. */
4090 if (unlikely(rc == -EAGAIN))
4096 if (!dev->od_noscrub && ++once == 1) {
4097 rc = osd_scrub_start(dev);
4098 LCONSOLE_WARN("%.16s: trigger OI scrub by RPC for "DFID
4100 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
4109 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
4110 struct osd_device *dev,
4111 struct osd_idmap_cache *oic,
4112 struct lu_fid *fid, __u32 ino)
4114 struct lustre_mdt_attrs *lma = &oti->oti_mdt_attrs;
4115 struct inode *inode;
4118 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
4119 inode = osd_iget(oti, dev, &oic->oic_lid);
4120 if (IS_ERR(inode)) {
4121 fid_zero(&oic->oic_fid);
4122 return PTR_ERR(inode);
4125 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, lma);
4128 fid_zero(&oic->oic_fid);
4130 *fid = oic->oic_fid = lma->lma_self_fid;
4134 int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
4135 struct osd_inode_id *id, const struct lu_fid *fid)
4137 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
4138 id->oii_ino, id->oii_gen, info);
4139 info->oti_cache.oic_lid = *id;
4140 info->oti_cache.oic_fid = *fid;
4141 info->oti_cache.oic_dev = osd;
4147 * Get parent FID from the linkEA.
4149 * For a directory which parent resides on remote MDT, to satisfy the
4150 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
4151 * the other hand, to make the lookup(..) on the directory can return
4152 * the real parent FID, we append the real parent FID after its ".."
4153 * name entry in the /REMOTE_PARENT_DIR.
4155 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
4156 * backup. So after the restore, we cannot get the right parent FID from
4157 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
4158 * we have stored the real parent FID in the directory object's linkEA,
4159 * we can parse the linkEA for the real parent FID.
4161 * \param[in] env pointer to the thread context
4162 * \param[in] obj pointer to the object to be handled
4163 * \param[out]fid pointer to the buffer to hold the parent FID
4165 * \retval 0 for getting the real parent FID successfully
4166 * \retval negative error number on failure
4168 static int osd_get_pfid_from_linkea(const struct lu_env *env,
4169 struct osd_object *obj,
4172 struct osd_thread_info *oti = osd_oti_get(env);
4173 struct lu_buf *buf = &oti->oti_big_buf;
4174 struct dentry *dentry = &oti->oti_obj_dentry;
4175 struct inode *inode = obj->oo_inode;
4176 struct linkea_data ldata = { 0 };
4181 if (!S_ISDIR(inode->i_mode))
4185 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4186 buf->lb_buf, buf->lb_len);
4187 if (rc == -ERANGE) {
4188 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4191 lu_buf_realloc(buf, rc);
4192 if (buf->lb_buf == NULL)
4199 if (unlikely(rc == 0))
4205 if (unlikely(buf->lb_buf == NULL)) {
4206 lu_buf_realloc(buf, rc);
4207 if (buf->lb_buf == NULL)
4214 rc = linkea_init(&ldata);
4216 linkea_first_entry(&ldata);
4217 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
4224 * Calls ->lookup() to find dentry. From dentry get inode and
4225 * read inode's ea to get fid. This is required for interoperability
4228 * \retval 0, on success
4229 * \retval -ve, on error
4231 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
4232 struct dt_rec *rec, const struct dt_key *key)
4234 struct inode *dir = obj->oo_inode;
4235 struct dentry *dentry;
4236 struct ldiskfs_dir_entry_2 *de;
4237 struct buffer_head *bh;
4238 struct lu_fid *fid = (struct lu_fid *) rec;
4239 struct htree_lock *hlock = NULL;
4244 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
4246 dentry = osd_child_dentry_get(env, obj,
4247 (char *)key, strlen((char *)key));
4249 if (obj->oo_hl_head != NULL) {
4250 hlock = osd_oti_get(env)->oti_hlock;
4251 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4252 dir, LDISKFS_HLOCK_LOOKUP);
4254 down_read(&obj->oo_ext_idx_sem);
4257 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4259 struct osd_thread_info *oti = osd_oti_get(env);
4260 struct osd_inode_id *id = &oti->oti_id;
4261 struct osd_idmap_cache *oic = &oti->oti_cache;
4262 struct osd_device *dev = osd_obj2dev(obj);
4263 struct osd_scrub *scrub = &dev->od_scrub;
4264 struct scrub_file *sf = &scrub->os_file;
4266 ino = le32_to_cpu(de->inode);
4267 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
4269 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
4273 rc = osd_get_fid_from_dentry(de, rec);
4275 /* done with de, release bh */
4278 if (unlikely(ino == osd_remote_parent_ino(dev)))
4279 /* If the parent is on remote MDT, and there
4280 * is no FID-in-dirent, then we have to get
4281 * the parent FID from the linkEA. */
4282 rc = osd_get_pfid_from_linkea(env, obj, fid);
4284 rc = osd_ea_fid_get(env, obj, ino, fid, id);
4286 osd_id_gen(id, ino, OSD_OII_NOGEN);
4290 fid_zero(&oic->oic_fid);
4294 if (osd_remote_fid(env, dev, fid))
4297 rc = osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id,
4301 if ((scrub->os_pos_current <= ino) &&
4302 ((sf->sf_flags & SF_INCONSISTENT) ||
4303 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
4304 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
4306 osd_consistency_check(oti, dev, oic);
4315 ldiskfs_htree_unlock(hlock);
4317 up_read(&obj->oo_ext_idx_sem);
4322 * Find the osd object for given fid.
4324 * \param fid need to find the osd object having this fid
4326 * \retval osd_object on success
4327 * \retval -ve on error
4329 struct osd_object *osd_object_find(const struct lu_env *env,
4330 struct dt_object *dt,
4331 const struct lu_fid *fid)
4333 struct lu_device *ludev = dt->do_lu.lo_dev;
4334 struct osd_object *child = NULL;
4335 struct lu_object *luch;
4336 struct lu_object *lo;
4339 * at this point topdev might not exist yet
4340 * (i.e. MGS is preparing profiles). so we can
4341 * not rely on topdev and instead lookup with
4342 * our device passed as topdev. this can't work
4343 * if the object isn't cached yet (as osd doesn't
4344 * allocate lu_header). IOW, the object must be
4345 * in the cache, otherwise lu_object_alloc() crashes
4348 luch = lu_object_find_at(env, ludev->ld_site->ls_top_dev == NULL ?
4349 ludev : ludev->ld_site->ls_top_dev,
4351 if (!IS_ERR(luch)) {
4352 if (lu_object_exists(luch)) {
4353 lo = lu_object_locate(luch->lo_header, ludev->ld_type);
4355 child = osd_obj(lo);
4357 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4358 "lu_object can't be located"
4359 DFID"\n", PFID(fid));
4361 if (child == NULL) {
4362 lu_object_put(env, luch);
4363 CERROR("Unable to get osd_object\n");
4364 child = ERR_PTR(-ENOENT);
4367 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4368 "lu_object does not exists "DFID"\n",
4370 lu_object_put(env, luch);
4371 child = ERR_PTR(-ENOENT);
4374 child = ERR_CAST(luch);
4381 * Put the osd object once done with it.
4383 * \param obj osd object that needs to be put
4385 static inline void osd_object_put(const struct lu_env *env,
4386 struct osd_object *obj)
4388 lu_object_put(env, &obj->oo_dt.do_lu);
4391 static int osd_index_declare_ea_insert(const struct lu_env *env,
4392 struct dt_object *dt,
4393 const struct dt_rec *rec,
4394 const struct dt_key *key,
4395 struct thandle *handle)
4397 struct osd_thandle *oh;
4398 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4399 struct lu_fid *fid = (struct lu_fid *)rec;
4403 LASSERT(!dt_object_remote(dt));
4404 LASSERT(handle != NULL);
4406 oh = container_of0(handle, struct osd_thandle, ot_super);
4407 LASSERT(oh->ot_handle == NULL);
4409 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4410 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4412 if (osd_dt_obj(dt)->oo_inode != NULL) {
4413 struct inode *inode = osd_dt_obj(dt)->oo_inode;
4415 /* We ignore block quota on meta pool (MDTs), so needn't
4416 * calculate how many blocks will be consumed by this index
4418 rc = osd_declare_inode_qid(env, i_uid_read(inode),
4419 i_gid_read(inode), 0, oh,
4420 osd_dt_obj(dt), true, NULL, false);
4426 rc = osd_remote_fid(env, osd, fid);
4432 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
4433 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
4434 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4435 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4436 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4437 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4443 * Index add function for interoperability mode (b11826).
4444 * It will add the directory entry.This entry is needed to
4445 * maintain name->fid mapping.
4447 * \param key it is key i.e. file entry to be inserted
4448 * \param rec it is value of given key i.e. fid
4450 * \retval 0, on success
4451 * \retval -ve, on error
4453 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
4454 const struct dt_rec *rec,
4455 const struct dt_key *key, struct thandle *th,
4456 struct lustre_capa *capa, int ignore_quota)
4458 struct osd_object *obj = osd_dt_obj(dt);
4459 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4460 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
4461 const struct lu_fid *fid = rec1->rec_fid;
4462 const char *name = (const char *)key;
4463 struct osd_thread_info *oti = osd_oti_get(env);
4464 struct osd_inode_id *id = &oti->oti_id;
4465 struct inode *child_inode = NULL;
4466 struct osd_object *child = NULL;
4470 LASSERT(osd_invariant(obj));
4471 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
4472 LASSERT(th != NULL);
4474 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4476 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
4479 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
4481 rc = osd_remote_fid(env, osd, fid);
4483 CERROR("%s: Can not find object "DFID" rc %d\n",
4484 osd_name(osd), PFID(fid), rc);
4489 /* Insert remote entry */
4490 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
4491 struct osd_mdobj_map *omm = osd->od_mdt_map;
4492 struct osd_thandle *oh;
4494 /* If parent on remote MDT, we need put this object
4496 oh = container_of(th, typeof(*oh), ot_super);
4497 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4499 CERROR("%s: add "DFID" error: rc = %d\n",
4501 PFID(lu_object_fid(&dt->do_lu)), rc);
4505 child_inode = igrab(omm->omm_remote_parent->d_inode);
4507 child_inode = osd_create_local_agent_inode(env, osd,
4508 obj, fid, rec1->rec_type & S_IFMT, th);
4509 if (IS_ERR(child_inode))
4510 RETURN(PTR_ERR(child_inode));
4513 /* Insert local entry */
4514 child = osd_object_find(env, dt, fid);
4515 if (IS_ERR(child)) {
4516 CERROR("%s: Can not find object "DFID"%u:%u: rc = %d\n",
4517 osd_name(osd), PFID(fid),
4518 id->oii_ino, id->oii_gen,
4519 (int)PTR_ERR(child));
4520 RETURN(PTR_ERR(child));
4522 child_inode = igrab(child->oo_inode);
4525 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
4527 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
4528 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
4532 osd_object_put(env, child);
4533 LASSERT(osd_invariant(obj));
4538 * Initialize osd Iterator for given osd index object.
4540 * \param dt osd index object
4543 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
4544 struct dt_object *dt,
4546 struct lustre_capa *capa)
4548 struct osd_it_iam *it;
4549 struct osd_thread_info *oti = osd_oti_get(env);
4550 struct osd_object *obj = osd_dt_obj(dt);
4551 struct lu_object *lo = &dt->do_lu;
4552 struct iam_path_descr *ipd;
4553 struct iam_container *bag = &obj->oo_dir->od_container;
4555 LASSERT(lu_object_exists(lo));
4557 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
4558 return ERR_PTR(-EACCES);
4561 ipd = osd_it_ipd_get(env, bag);
4562 if (likely(ipd != NULL)) {
4566 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
4567 return (struct dt_it *)it;
4569 return ERR_PTR(-ENOMEM);
4573 * free given Iterator.
4576 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
4578 struct osd_it_iam *it = (struct osd_it_iam *)di;
4579 struct osd_object *obj = it->oi_obj;
4581 iam_it_fini(&it->oi_it);
4582 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
4583 lu_object_put(env, &obj->oo_dt.do_lu);
4587 * Move Iterator to record specified by \a key
4589 * \param di osd iterator
4590 * \param key key for index
4592 * \retval +ve di points to record with least key not larger than key
4593 * \retval 0 di points to exact matched key
4594 * \retval -ve failure
4597 static int osd_it_iam_get(const struct lu_env *env,
4598 struct dt_it *di, const struct dt_key *key)
4600 struct osd_thread_info *oti = osd_oti_get(env);
4601 struct osd_it_iam *it = (struct osd_it_iam *)di;
4603 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4604 /* swab quota uid/gid */
4605 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4606 key = (struct dt_key *)&oti->oti_quota_id;
4609 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
4615 * \param di osd iterator
4617 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
4619 struct osd_it_iam *it = (struct osd_it_iam *)di;
4621 iam_it_put(&it->oi_it);
4625 * Move iterator by one record
4627 * \param di osd iterator
4629 * \retval +1 end of container reached
4631 * \retval -ve failure
4634 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
4636 struct osd_it_iam *it = (struct osd_it_iam *)di;
4638 return iam_it_next(&it->oi_it);
4642 * Return pointer to the key under iterator.
4645 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
4646 const struct dt_it *di)
4648 struct osd_thread_info *oti = osd_oti_get(env);
4649 struct osd_it_iam *it = (struct osd_it_iam *)di;
4650 struct osd_object *obj = it->oi_obj;
4653 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
4655 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
4656 /* swab quota uid/gid */
4657 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
4658 key = (struct dt_key *)&oti->oti_quota_id;
4665 * Return size of key under iterator (in bytes)
4668 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
4670 struct osd_it_iam *it = (struct osd_it_iam *)di;
4672 return iam_it_key_size(&it->oi_it);
4676 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
4678 /* check if file type is required */
4679 if (ent->lde_attrs & LUDA_TYPE) {
4680 struct luda_type *lt;
4681 int align = sizeof(*lt) - 1;
4683 len = (len + align) & ~align;
4684 lt = (struct luda_type *)(ent->lde_name + len);
4685 lt->lt_type = cpu_to_le16(DTTOIF(type));
4688 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
4692 * build lu direct from backend fs dirent.
4696 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
4697 char *name, __u16 namelen, __u16 type, __u32 attr)
4699 ent->lde_attrs = attr | LUDA_FID;
4700 fid_cpu_to_le(&ent->lde_fid, fid);
4702 ent->lde_hash = cpu_to_le64(offset);
4703 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
4705 strncpy(ent->lde_name, name, namelen);
4706 ent->lde_name[namelen] = '\0';
4707 ent->lde_namelen = cpu_to_le16(namelen);
4709 /* append lustre attributes */
4710 osd_it_append_attrs(ent, namelen, type);
4714 * Return pointer to the record under iterator.
4716 static int osd_it_iam_rec(const struct lu_env *env,
4717 const struct dt_it *di,
4718 struct dt_rec *dtrec, __u32 attr)
4720 struct osd_it_iam *it = (struct osd_it_iam *)di;
4721 struct osd_thread_info *info = osd_oti_get(env);
4724 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
4725 const struct osd_fid_pack *rec;
4726 struct lu_fid *fid = &info->oti_fid;
4727 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
4733 name = (char *)iam_it_key_get(&it->oi_it);
4735 RETURN(PTR_ERR(name));
4737 namelen = iam_it_key_size(&it->oi_it);
4739 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
4741 RETURN(PTR_ERR(rec));
4743 rc = osd_fid_unpack(fid, rec);
4747 hash = iam_it_store(&it->oi_it);
4749 /* IAM does not store object type in IAM index (dir) */
4750 osd_it_pack_dirent(lde, fid, hash, name, namelen,
4752 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4753 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4754 (struct iam_rec *)dtrec);
4755 osd_quota_unpack(it->oi_obj, dtrec);
4757 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4758 (struct iam_rec *)dtrec);
4765 * Returns cookie for current Iterator position.
4767 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
4769 struct osd_it_iam *it = (struct osd_it_iam *)di;
4771 return iam_it_store(&it->oi_it);
4775 * Restore iterator from cookie.
4777 * \param di osd iterator
4778 * \param hash Iterator location cookie
4780 * \retval +ve di points to record with least key not larger than key.
4781 * \retval 0 di points to exact matched key
4782 * \retval -ve failure
4785 static int osd_it_iam_load(const struct lu_env *env,
4786 const struct dt_it *di, __u64 hash)
4788 struct osd_it_iam *it = (struct osd_it_iam *)di;
4790 return iam_it_load(&it->oi_it, hash);
4793 static const struct dt_index_operations osd_index_iam_ops = {
4794 .dio_lookup = osd_index_iam_lookup,
4795 .dio_declare_insert = osd_index_declare_iam_insert,
4796 .dio_insert = osd_index_iam_insert,
4797 .dio_declare_delete = osd_index_declare_iam_delete,
4798 .dio_delete = osd_index_iam_delete,
4800 .init = osd_it_iam_init,
4801 .fini = osd_it_iam_fini,
4802 .get = osd_it_iam_get,
4803 .put = osd_it_iam_put,
4804 .next = osd_it_iam_next,
4805 .key = osd_it_iam_key,
4806 .key_size = osd_it_iam_key_size,
4807 .rec = osd_it_iam_rec,
4808 .store = osd_it_iam_store,
4809 .load = osd_it_iam_load
4815 * Creates or initializes iterator context.
4817 * \retval struct osd_it_ea, iterator structure on success
4820 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
4821 struct dt_object *dt,
4823 struct lustre_capa *capa)
4825 struct osd_object *obj = osd_dt_obj(dt);
4826 struct osd_thread_info *info = osd_oti_get(env);
4827 struct osd_it_ea *it = &info->oti_it_ea;
4828 struct file *file = &it->oie_file;
4829 struct lu_object *lo = &dt->do_lu;
4830 struct dentry *obj_dentry = &info->oti_it_dentry;
4832 LASSERT(lu_object_exists(lo));
4834 obj_dentry->d_inode = obj->oo_inode;
4835 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
4836 obj_dentry->d_name.hash = 0;
4838 it->oie_rd_dirent = 0;
4839 it->oie_it_dirent = 0;
4840 it->oie_dirent = NULL;
4841 it->oie_buf = info->oti_it_ea_buf;
4844 /* Reset the "file" totally to avoid to reuse any old value from
4845 * former readdir handling, the "file->f_pos" should be zero. */
4846 memset(file, 0, sizeof(*file));
4847 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
4848 if (attr & LUDA_64BITHASH)
4849 file->f_mode = FMODE_64BITHASH;
4851 file->f_mode = FMODE_32BITHASH;
4852 file->f_dentry = obj_dentry;
4853 file->f_mapping = obj->oo_inode->i_mapping;
4854 file->f_op = obj->oo_inode->i_fop;
4855 set_file_inode(file, obj->oo_inode);
4858 RETURN((struct dt_it *) it);
4862 * Destroy or finishes iterator context.
4864 * \param di iterator structure to be destroyed
4866 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
4868 struct osd_it_ea *it = (struct osd_it_ea *)di;
4869 struct osd_object *obj = it->oie_obj;
4870 struct inode *inode = obj->oo_inode;
4873 it->oie_file.f_op->release(inode, &it->oie_file);
4874 lu_object_put(env, &obj->oo_dt.do_lu);
4879 * It position the iterator at given key, so that next lookup continues from
4880 * that key Or it is similar to dio_it->load() but based on a key,
4881 * rather than file position.
4883 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
4886 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
4888 static int osd_it_ea_get(const struct lu_env *env,
4889 struct dt_it *di, const struct dt_key *key)
4891 struct osd_it_ea *it = (struct osd_it_ea *)di;
4894 LASSERT(((const char *)key)[0] == '\0');
4895 it->oie_file.f_pos = 0;
4896 it->oie_rd_dirent = 0;
4897 it->oie_it_dirent = 0;
4898 it->oie_dirent = NULL;
4906 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
4910 struct osd_filldir_cbs {
4911 #ifdef HAVE_DIR_CONTEXT
4912 struct dir_context ctx;
4914 struct osd_it_ea *it;
4917 * It is called internally by ->readdir(). It fills the
4918 * iterator's in-memory data structure with required
4919 * information i.e. name, namelen, rec_size etc.
4921 * \param buf in which information to be filled in.
4922 * \param name name of the file in given dir
4924 * \retval 0 on success
4925 * \retval 1 on buffer full
4927 static int osd_ldiskfs_filldir(void *buf, const char *name, int namelen,
4928 loff_t offset, __u64 ino,
4931 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
4932 struct osd_object *obj = it->oie_obj;
4933 struct osd_it_ea_dirent *ent = it->oie_dirent;
4934 struct lu_fid *fid = &ent->oied_fid;
4935 struct osd_fid_pack *rec;
4938 /* this should never happen */
4939 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
4940 CERROR("ldiskfs return invalid namelen %d\n", namelen);
4944 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
4948 /* "." is just the object itself. */
4949 if (namelen == 1 && name[0] == '.') {
4950 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
4951 } else if (d_type & LDISKFS_DIRENT_LUFID) {
4952 rec = (struct osd_fid_pack*) (name + namelen + 1);
4953 if (osd_fid_unpack(fid, rec) != 0)
4958 d_type &= ~LDISKFS_DIRENT_LUFID;
4960 /* NOT export local root. */
4961 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
4962 ino = obj->oo_inode->i_ino;
4963 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
4966 ent->oied_ino = ino;
4967 ent->oied_off = offset;
4968 ent->oied_namelen = namelen;
4969 ent->oied_type = d_type;
4971 memcpy(ent->oied_name, name, namelen);
4973 it->oie_rd_dirent++;
4974 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
4979 * Calls ->readdir() to load a directory entry at a time
4980 * and stored it in iterator's in-memory data structure.
4982 * \param di iterator's in memory structure
4984 * \retval 0 on success
4985 * \retval -ve on error
4986 * \retval +1 reach the end of entry
4988 static int osd_ldiskfs_it_fill(const struct lu_env *env,
4989 const struct dt_it *di)
4991 struct osd_it_ea *it = (struct osd_it_ea *)di;
4992 struct osd_object *obj = it->oie_obj;
4993 struct inode *inode = obj->oo_inode;
4994 struct htree_lock *hlock = NULL;
4995 struct file *filp = &it->oie_file;
4997 struct osd_filldir_cbs buf = {
4998 #ifdef HAVE_DIR_CONTEXT
4999 .ctx.actor = osd_ldiskfs_filldir,
5005 it->oie_dirent = it->oie_buf;
5006 it->oie_rd_dirent = 0;
5008 if (obj->oo_hl_head != NULL) {
5009 hlock = osd_oti_get(env)->oti_hlock;
5010 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5011 inode, LDISKFS_HLOCK_READDIR);
5013 down_read(&obj->oo_ext_idx_sem);
5016 #ifdef HAVE_DIR_CONTEXT
5017 buf.ctx.pos = filp->f_pos;
5018 rc = inode->i_fop->iterate(filp, &buf.ctx);
5019 filp->f_pos = buf.ctx.pos;
5021 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
5025 ldiskfs_htree_unlock(hlock);
5027 up_read(&obj->oo_ext_idx_sem);
5029 if (it->oie_rd_dirent == 0) {
5030 /*If it does not get any dirent, it means it has been reached
5031 *to the end of the dir */
5032 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
5036 it->oie_dirent = it->oie_buf;
5037 it->oie_it_dirent = 1;
5044 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5045 * to load a directory entry at a time and stored it in
5046 * iterator's in-memory data structure.
5048 * \param di iterator's in memory structure
5050 * \retval +ve iterator reached to end
5051 * \retval 0 iterator not reached to end
5052 * \retval -ve on error
5054 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
5056 struct osd_it_ea *it = (struct osd_it_ea *)di;
5061 if (it->oie_it_dirent < it->oie_rd_dirent) {
5063 (void *) it->oie_dirent +
5064 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
5065 it->oie_dirent->oied_namelen);
5066 it->oie_it_dirent++;
5069 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
5072 rc = osd_ldiskfs_it_fill(env, di);
5079 * Returns the key at current position from iterator's in memory structure.
5081 * \param di iterator's in memory structure
5083 * \retval key i.e. struct dt_key on success
5085 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
5086 const struct dt_it *di)
5088 struct osd_it_ea *it = (struct osd_it_ea *)di;
5090 return (struct dt_key *)it->oie_dirent->oied_name;
5094 * Returns the key's size at current position from iterator's in memory structure.
5096 * \param di iterator's in memory structure
5098 * \retval key_size i.e. struct dt_key on success
5100 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
5102 struct osd_it_ea *it = (struct osd_it_ea *)di;
5104 return it->oie_dirent->oied_namelen;
5108 osd_dirent_update(handle_t *jh, struct super_block *sb,
5109 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
5110 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de)
5112 struct osd_fid_pack *rec;
5116 LASSERT(de->file_type & LDISKFS_DIRENT_LUFID);
5117 LASSERT(de->rec_len >= de->name_len + sizeof(struct osd_fid_pack));
5119 rc = ldiskfs_journal_get_write_access(jh, bh);
5123 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5124 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
5125 rc = ldiskfs_journal_dirty_metadata(jh, bh);
5131 osd_dirent_has_space(__u16 reclen, __u16 namelen, unsigned blocksize)
5133 if (ldiskfs_rec_len_from_disk(reclen, blocksize) >=
5134 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
5141 osd_dot_dotdot_has_space(struct ldiskfs_dir_entry_2 *de, int dot_dotdot)
5143 LASSERTF(dot_dotdot == 1 || dot_dotdot == 2,
5144 "dot_dotdot = %d\n", dot_dotdot);
5146 if (LDISKFS_DIR_REC_LEN(de) >=
5147 __LDISKFS_DIR_REC_LEN(dot_dotdot + 1 + sizeof(struct osd_fid_pack)))
5154 osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
5155 struct inode *dir, struct inode *inode,
5156 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
5157 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de,
5158 struct htree_lock *hlock)
5160 struct dentry *dentry;
5161 struct osd_fid_pack *rec;
5162 struct ldiskfs_dentry_param *ldp;
5166 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
5167 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
5170 /* There is enough space to hold the FID-in-dirent. */
5171 if (osd_dirent_has_space(de->rec_len, ent->oied_namelen,
5172 dir->i_sb->s_blocksize)) {
5173 rc = ldiskfs_journal_get_write_access(jh, bh);
5177 de->name[de->name_len] = 0;
5178 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5179 rec->fp_len = sizeof(struct lu_fid) + 1;
5180 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
5181 de->file_type |= LDISKFS_DIRENT_LUFID;
5183 rc = ldiskfs_journal_dirty_metadata(jh, bh);
5188 rc = ldiskfs_delete_entry(jh, dir, de, bh);
5192 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
5194 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
5195 osd_get_ldiskfs_dirent_param(ldp, fid);
5196 dentry->d_fsdata = (void *)ldp;
5197 ll_vfs_dq_init(dir);
5198 rc = osd_ldiskfs_add_entry(jh, dentry, inode, hlock);
5199 /* It is too bad, we cannot reinsert the name entry back.
5200 * That means we lose it! */
5202 CDEBUG(D_LFSCK, "%.16s: fail to reinsert the dirent, "
5203 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
5204 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
5205 dir->i_ino, dir->i_generation,
5206 ent->oied_namelen, ent->oied_name, PFID(fid), rc);
5212 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
5213 struct osd_it_ea *it, struct lu_fid *fid,
5214 struct osd_inode_id *id, __u32 *attr)
5216 struct osd_thread_info *info = osd_oti_get(env);
5217 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
5218 struct osd_device *dev = osd_obj2dev(obj);
5219 struct super_block *sb = osd_sb(dev);
5220 const char *devname =
5221 LDISKFS_SB(sb)->s_es->s_volume_name;
5222 struct osd_it_ea_dirent *ent = it->oie_dirent;
5223 struct inode *dir = obj->oo_inode;
5224 struct htree_lock *hlock = NULL;
5225 struct buffer_head *bh = NULL;
5226 handle_t *jh = NULL;
5227 struct ldiskfs_dir_entry_2 *de;
5228 struct dentry *dentry;
5229 struct inode *inode;
5236 if (ent->oied_name[0] == '.') {
5237 if (ent->oied_namelen == 1)
5239 else if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
5243 dentry = osd_child_dentry_get(env, obj, ent->oied_name,
5246 /* We need to ensure that the name entry is still valid.
5247 * Because it may be removed or renamed by other already.
5249 * The unlink or rename operation will start journal before PDO lock,
5250 * so to avoid deadlock, here we need to start journal handle before
5251 * related PDO lock also. But because we do not know whether there
5252 * will be something to be repaired before PDO lock, we just start
5253 * journal without conditions.
5255 * We may need to remove the name entry firstly, then insert back.
5256 * One credit is for user quota file update.
5257 * One credit is for group quota file update.
5258 * Two credits are for dirty inode. */
5259 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
5260 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
5263 if (dev->od_dirent_journal) {
5264 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
5267 CDEBUG(D_LFSCK, "%.16s: fail to start trans for dirent "
5268 "check_repair, dir = %lu/%u, credits = %d, "
5269 "name = %.*s: rc = %d\n",
5270 devname, dir->i_ino, dir->i_generation, credits,
5271 ent->oied_namelen, ent->oied_name, rc);
5275 if (obj->oo_hl_head != NULL) {
5276 hlock = osd_oti_get(env)->oti_hlock;
5277 /* "0" means exclusive lock for the whole directory.
5278 * We need to prevent others access such name entry
5279 * during the delete + insert. Neither HLOCK_ADD nor
5280 * HLOCK_DEL cannot guarantee the atomicity. */
5281 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
5283 down_write(&obj->oo_ext_idx_sem);
5286 if (obj->oo_hl_head != NULL) {
5287 hlock = osd_oti_get(env)->oti_hlock;
5288 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
5289 LDISKFS_HLOCK_LOOKUP);
5291 down_read(&obj->oo_ext_idx_sem);
5295 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5296 /* For dot/dotdot entry, if there is not enough space to hold the
5297 * FID-in-dirent, just keep them there. It only happens when the
5298 * device upgraded from 1.8 or restored from MDT file-level backup.
5299 * For the whole directory, only dot/dotdot entry have no FID-in-dirent
5300 * and needs to get FID from LMA when readdir, it will not affect the
5301 * performance much. */
5302 if ((bh == NULL) || (le32_to_cpu(de->inode) != ent->oied_ino) ||
5303 (dot_dotdot != 0 && !osd_dot_dotdot_has_space(de, dot_dotdot))) {
5304 *attr |= LUDA_IGNORE;
5305 GOTO(out_journal, rc = 0);
5308 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
5309 inode = osd_iget(info, dev, id);
5310 if (IS_ERR(inode)) {
5311 rc = PTR_ERR(inode);
5312 if (rc == -ENOENT || rc == -ESTALE) {
5313 *attr |= LUDA_IGNORE;
5316 CDEBUG(D_LFSCK, "%.16s: fail to iget for dirent "
5317 "check_repair, dir = %lu/%u, name = %.*s: "
5319 devname, dir->i_ino, dir->i_generation,
5320 ent->oied_namelen, ent->oied_name, rc);
5323 GOTO(out_journal, rc);
5326 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
5328 LASSERT(!(lma->lma_compat & LMAC_NOT_IN_OI));
5330 if (fid_is_sane(fid)) {
5331 /* FID-in-dirent is valid. */
5332 if (lu_fid_eq(fid, &lma->lma_self_fid))
5333 GOTO(out_inode, rc = 0);
5335 /* Do not repair under dryrun mode. */
5336 if (*attr & LUDA_VERIFY_DRYRUN) {
5337 *attr |= LUDA_REPAIR;
5338 GOTO(out_inode, rc = 0);
5341 if (!dev->od_dirent_journal) {
5345 ldiskfs_htree_unlock(hlock);
5347 up_read(&obj->oo_ext_idx_sem);
5348 dev->od_dirent_journal = 1;
5352 *fid = lma->lma_self_fid;
5354 /* Update the FID-in-dirent. */
5355 rc = osd_dirent_update(jh, sb, ent, fid, bh, de);
5357 *attr |= LUDA_REPAIR;
5359 CDEBUG(D_LFSCK, "%.16s: fail to update FID "
5360 "in the dirent, dir = %lu/%u, "
5361 "name = %.*s, "DFID": rc = %d\n",
5362 devname, dir->i_ino, dir->i_generation,
5363 ent->oied_namelen, ent->oied_name,
5366 /* Do not repair under dryrun mode. */
5367 if (*attr & LUDA_VERIFY_DRYRUN) {
5368 *fid = lma->lma_self_fid;
5369 *attr |= LUDA_REPAIR;
5370 GOTO(out_inode, rc = 0);
5373 if (!dev->od_dirent_journal) {
5377 ldiskfs_htree_unlock(hlock);
5379 up_read(&obj->oo_ext_idx_sem);
5380 dev->od_dirent_journal = 1;
5384 *fid = lma->lma_self_fid;
5386 /* Append the FID-in-dirent. */
5387 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5388 fid, bh, de, hlock);
5390 *attr |= LUDA_REPAIR;
5392 CDEBUG(D_LFSCK, "%.16s: fail to append FID "
5393 "after the dirent, dir = %lu/%u, "
5394 "name = %.*s, "DFID": rc = %d\n",
5395 devname, dir->i_ino, dir->i_generation,
5396 ent->oied_namelen, ent->oied_name,
5399 } else if (rc == -ENODATA) {
5400 /* Do not repair under dryrun mode. */
5401 if (*attr & LUDA_VERIFY_DRYRUN) {
5402 if (fid_is_sane(fid)) {
5403 *attr |= LUDA_REPAIR;
5405 lu_igif_build(fid, inode->i_ino,
5406 inode->i_generation);
5407 *attr |= LUDA_UPGRADE;
5409 GOTO(out_inode, rc = 0);
5412 if (!dev->od_dirent_journal) {
5416 ldiskfs_htree_unlock(hlock);
5418 up_read(&obj->oo_ext_idx_sem);
5419 dev->od_dirent_journal = 1;
5424 if (unlikely(fid_is_sane(fid))) {
5425 /* FID-in-dirent exists, but FID-in-LMA is lost.
5426 * Trust the FID-in-dirent, and add FID-in-LMA. */
5427 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
5429 *attr |= LUDA_REPAIR;
5431 CDEBUG(D_LFSCK, "%.16s: fail to set LMA for "
5432 "update dirent, dir = %lu/%u, "
5433 "name = %.*s, "DFID": rc = %d\n",
5434 devname, dir->i_ino, dir->i_generation,
5435 ent->oied_namelen, ent->oied_name,
5438 lu_igif_build(fid, inode->i_ino, inode->i_generation);
5439 /* It is probably IGIF object. Only aappend the
5440 * FID-in-dirent. OI scrub will process FID-in-LMA. */
5441 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5442 fid, bh, de, hlock);
5444 *attr |= LUDA_UPGRADE;
5446 CDEBUG(D_LFSCK, "%.16s: fail to append IGIF "
5447 "after the dirent, dir = %lu/%u, "
5448 "name = %.*s, "DFID": rc = %d\n",
5449 devname, dir->i_ino, dir->i_generation,
5450 ent->oied_namelen, ent->oied_name,
5455 GOTO(out_inode, rc);
5462 if (hlock != NULL) {
5463 ldiskfs_htree_unlock(hlock);
5465 if (dev->od_dirent_journal)
5466 up_write(&obj->oo_ext_idx_sem);
5468 up_read(&obj->oo_ext_idx_sem);
5471 ldiskfs_journal_stop(jh);
5472 if (rc >= 0 && !dirty)
5473 dev->od_dirent_journal = 0;
5478 * Returns the value at current position from iterator's in memory structure.
5480 * \param di struct osd_it_ea, iterator's in memory structure
5481 * \param attr attr requested for dirent.
5482 * \param lde lustre dirent
5484 * \retval 0 no error and \param lde has correct lustre dirent.
5485 * \retval -ve on error
5487 static inline int osd_it_ea_rec(const struct lu_env *env,
5488 const struct dt_it *di,
5489 struct dt_rec *dtrec, __u32 attr)
5491 struct osd_it_ea *it = (struct osd_it_ea *)di;
5492 struct osd_object *obj = it->oie_obj;
5493 struct osd_device *dev = osd_obj2dev(obj);
5494 struct osd_scrub *scrub = &dev->od_scrub;
5495 struct scrub_file *sf = &scrub->os_file;
5496 struct osd_thread_info *oti = osd_oti_get(env);
5497 struct osd_inode_id *id = &oti->oti_id;
5498 struct osd_idmap_cache *oic = &oti->oti_cache;
5499 struct lu_fid *fid = &it->oie_dirent->oied_fid;
5500 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5501 __u32 ino = it->oie_dirent->oied_ino;
5505 LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
5507 if (attr & LUDA_VERIFY) {
5508 if (unlikely(ino == osd_remote_parent_ino(dev))) {
5509 attr |= LUDA_IGNORE;
5510 /* If the parent is on remote MDT, and there
5511 * is no FID-in-dirent, then we have to get
5512 * the parent FID from the linkEA. */
5513 osd_get_pfid_from_linkea(env, obj, fid);
5515 rc = osd_dirent_check_repair(env, obj, it, fid, id,
5519 attr &= ~LU_DIRENT_ATTRS_MASK;
5520 if (!fid_is_sane(fid)) {
5521 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP) &&
5522 likely(it->oie_dirent->oied_namelen != 2 ||
5523 it->oie_dirent->oied_name[0] != '.' ||
5524 it->oie_dirent->oied_name[1] != '.'))
5527 if (unlikely(ino == osd_remote_parent_ino(dev)))
5528 /* If the parent is on remote MDT, and there
5529 * is no FID-in-dirent, then we have to get
5530 * the parent FID from the linkEA. */
5531 rc = osd_get_pfid_from_linkea(env, obj, fid);
5533 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5535 osd_id_gen(id, ino, OSD_OII_NOGEN);
5539 /* Pack the entry anyway, at least the offset is right. */
5540 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
5541 it->oie_dirent->oied_name,
5542 it->oie_dirent->oied_namelen,
5543 it->oie_dirent->oied_type, attr);
5548 if (osd_remote_fid(env, dev, fid))
5551 if (likely(!(attr & LUDA_IGNORE)))
5552 rc = osd_add_oi_cache(oti, dev, id, fid);
5554 if (!(attr & LUDA_VERIFY) &&
5555 (scrub->os_pos_current <= ino) &&
5556 ((sf->sf_flags & SF_INCONSISTENT) ||
5557 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
5558 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid), sf->sf_oi_bitmap)))
5559 osd_consistency_check(oti, dev, oic);
5565 * Returns the record size size at current position.
5567 * This function will return record(lu_dirent) size in bytes.
5569 * \param[in] env execution environment
5570 * \param[in] di iterator's in memory structure
5571 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
5572 * calculate the lu_dirent size.
5574 * \retval record size(in bytes & in memory) of the current lu_dirent
5577 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
5580 struct osd_it_ea *it = (struct osd_it_ea *)di;
5582 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
5586 * Returns a cookie for current position of the iterator head, so that
5587 * user can use this cookie to load/start the iterator next time.
5589 * \param di iterator's in memory structure
5591 * \retval cookie for current position, on success
5593 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
5595 struct osd_it_ea *it = (struct osd_it_ea *)di;
5597 return it->oie_dirent->oied_off;
5601 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5602 * to load a directory entry at a time and stored it i inn,
5603 * in iterator's in-memory data structure.
5605 * \param di struct osd_it_ea, iterator's in memory structure
5607 * \retval +ve on success
5608 * \retval -ve on error
5610 static int osd_it_ea_load(const struct lu_env *env,
5611 const struct dt_it *di, __u64 hash)
5613 struct osd_it_ea *it = (struct osd_it_ea *)di;
5617 it->oie_file.f_pos = hash;
5619 rc = osd_ldiskfs_it_fill(env, di);
5630 * Index lookup function for interoperability mode (b11826).
5632 * \param key, key i.e. file name to be searched
5634 * \retval +ve, on success
5635 * \retval -ve, on error
5637 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
5638 struct dt_rec *rec, const struct dt_key *key,
5639 struct lustre_capa *capa)
5641 struct osd_object *obj = osd_dt_obj(dt);
5646 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
5647 LINVRNT(osd_invariant(obj));
5649 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
5652 rc = osd_ea_lookup_rec(env, obj, rec, key);
5659 * Index and Iterator operations for interoperability
5660 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
5662 static const struct dt_index_operations osd_index_ea_ops = {
5663 .dio_lookup = osd_index_ea_lookup,
5664 .dio_declare_insert = osd_index_declare_ea_insert,
5665 .dio_insert = osd_index_ea_insert,
5666 .dio_declare_delete = osd_index_declare_ea_delete,
5667 .dio_delete = osd_index_ea_delete,
5669 .init = osd_it_ea_init,
5670 .fini = osd_it_ea_fini,
5671 .get = osd_it_ea_get,
5672 .put = osd_it_ea_put,
5673 .next = osd_it_ea_next,
5674 .key = osd_it_ea_key,
5675 .key_size = osd_it_ea_key_size,
5676 .rec = osd_it_ea_rec,
5677 .rec_size = osd_it_ea_rec_size,
5678 .store = osd_it_ea_store,
5679 .load = osd_it_ea_load
5683 static void *osd_key_init(const struct lu_context *ctx,
5684 struct lu_context_key *key)
5686 struct osd_thread_info *info;
5688 OBD_ALLOC_PTR(info);
5690 return ERR_PTR(-ENOMEM);
5692 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5693 if (info->oti_it_ea_buf == NULL)
5696 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
5698 info->oti_hlock = ldiskfs_htree_lock_alloc();
5699 if (info->oti_hlock == NULL)
5705 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5708 return ERR_PTR(-ENOMEM);
5711 static void osd_key_fini(const struct lu_context *ctx,
5712 struct lu_context_key *key, void* data)
5714 struct osd_thread_info *info = data;
5716 if (info->oti_hlock != NULL)
5717 ldiskfs_htree_lock_free(info->oti_hlock);
5718 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5719 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
5720 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
5721 lu_buf_free(&info->oti_big_buf);
5725 static void osd_key_exit(const struct lu_context *ctx,
5726 struct lu_context_key *key, void *data)
5728 struct osd_thread_info *info = data;
5730 LASSERT(info->oti_r_locks == 0);
5731 LASSERT(info->oti_w_locks == 0);
5732 LASSERT(info->oti_txns == 0);
5735 /* type constructor/destructor: osd_type_init, osd_type_fini */
5736 LU_TYPE_INIT_FINI(osd, &osd_key);
5738 struct lu_context_key osd_key = {
5739 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
5740 .lct_init = osd_key_init,
5741 .lct_fini = osd_key_fini,
5742 .lct_exit = osd_key_exit
5746 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
5747 const char *name, struct lu_device *next)
5749 struct osd_device *osd = osd_dev(d);
5751 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
5752 >= sizeof(osd->od_svname))
5754 return osd_procfs_init(osd, name);
5757 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
5759 struct seq_server_site *ss = osd_seq_site(osd);
5763 if (osd->od_is_ost || osd->od_cl_seq != NULL)
5766 if (unlikely(ss == NULL))
5769 OBD_ALLOC_PTR(osd->od_cl_seq);
5770 if (osd->od_cl_seq == NULL)
5773 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
5774 osd->od_svname, ss->ss_server_seq);
5777 OBD_FREE_PTR(osd->od_cl_seq);
5778 osd->od_cl_seq = NULL;
5784 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
5786 if (osd->od_cl_seq == NULL)
5789 seq_client_fini(osd->od_cl_seq);
5790 OBD_FREE_PTR(osd->od_cl_seq);
5791 osd->od_cl_seq = NULL;
5794 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
5798 /* shutdown quota slave instance associated with the device */
5799 if (o->od_quota_slave != NULL) {
5800 qsd_fini(env, o->od_quota_slave);
5801 o->od_quota_slave = NULL;
5804 osd_fid_fini(env, o);
5809 static void osd_umount(const struct lu_env *env, struct osd_device *o)
5813 if (o->od_mnt != NULL) {
5814 shrink_dcache_sb(osd_sb(o));
5815 osd_sync(env, &o->od_dt_dev);
5824 static int osd_mount(const struct lu_env *env,
5825 struct osd_device *o, struct lustre_cfg *cfg)
5827 const char *name = lustre_cfg_string(cfg, 0);
5828 const char *dev = lustre_cfg_string(cfg, 1);
5830 unsigned long page, s_flags, lmd_flags = 0;
5831 struct page *__page;
5832 struct file_system_type *type;
5833 char *options = NULL;
5835 struct osd_thread_info *info = osd_oti_get(env);
5836 struct lu_fid *fid = &info->oti_fid;
5837 struct inode *inode;
5841 if (o->od_mnt != NULL)
5844 if (strlen(dev) >= sizeof(o->od_mntdev))
5846 strcpy(o->od_mntdev, dev);
5848 OBD_PAGE_ALLOC(__page, GFP_IOFS);
5850 GOTO(out, rc = -ENOMEM);
5852 str = lustre_cfg_string(cfg, 2);
5853 s_flags = simple_strtoul(str, NULL, 0);
5854 str = strstr(str, ":");
5856 lmd_flags = simple_strtoul(str + 1, NULL, 0);
5857 opts = lustre_cfg_string(cfg, 3);
5858 page = (unsigned long)page_address(__page);
5859 options = (char *)page;
5862 strcat(options, "user_xattr,acl");
5864 strcat(options, opts);
5866 /* Glom up mount options */
5867 if (*options != '\0')
5868 strcat(options, ",");
5869 strlcat(options, "no_mbcache", PAGE_CACHE_SIZE);
5871 type = get_fs_type("ldiskfs");
5873 CERROR("%s: cannot find ldiskfs module\n", name);
5874 GOTO(out, rc = -ENODEV);
5877 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
5878 module_put(type->owner);
5880 if (IS_ERR(o->od_mnt)) {
5881 rc = PTR_ERR(o->od_mnt);
5883 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
5887 #ifdef HAVE_DEV_SET_RDONLY
5888 if (dev_check_rdonly(o->od_mnt->mnt_sb->s_bdev)) {
5889 CERROR("%s: underlying device %s is marked as read-only. "
5890 "Setup failed\n", name, dev);
5891 GOTO(out_mnt, rc = -EROFS);
5895 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
5896 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
5897 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
5898 GOTO(out_mnt, rc = -EINVAL);
5901 #ifdef LDISKFS_MOUNT_DIRDATA
5902 if (LDISKFS_HAS_INCOMPAT_FEATURE(o->od_mnt->mnt_sb,
5903 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
5904 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
5905 else if (!o->od_is_ost)
5906 CWARN("%s: device %s was upgraded from Lustre-1.x without "
5907 "enabling the dirdata feature. If you do not want to "
5908 "downgrade to Lustre-1.x again, you can enable it via "
5909 "'tune2fs -O dirdata device'\n", name, dev);
5911 inode = osd_sb(o)->s_root->d_inode;
5912 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
5913 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
5915 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
5919 if (lmd_flags & LMD_FLG_NOSCRUB)
5930 OBD_PAGE_FREE(__page);
5935 static struct lu_device *osd_device_fini(const struct lu_env *env,
5936 struct lu_device *d)
5938 struct osd_device *o = osd_dev(d);
5941 osd_shutdown(env, o);
5943 osd_scrub_cleanup(env, o);
5944 osd_obj_map_fini(o);
5950 static int osd_device_init0(const struct lu_env *env,
5951 struct osd_device *o,
5952 struct lustre_cfg *cfg)
5954 struct lu_device *l = osd2lu_dev(o);
5955 struct osd_thread_info *info;
5959 /* if the module was re-loaded, env can loose its keys */
5960 rc = lu_env_refill((struct lu_env *) env);
5963 info = osd_oti_get(env);
5966 l->ld_ops = &osd_lu_ops;
5967 o->od_dt_dev.dd_ops = &osd_dt_ops;
5969 spin_lock_init(&o->od_osfs_lock);
5970 mutex_init(&o->od_otable_mutex);
5972 o->od_capa_hash = init_capa_hash();
5973 if (o->od_capa_hash == NULL)
5974 GOTO(out, rc = -ENOMEM);
5976 o->od_read_cache = 1;
5977 o->od_writethrough_cache = 1;
5978 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
5980 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
5981 sizeof(o->od_svname));
5982 if (cplen >= sizeof(o->od_svname)) {
5987 if (server_name_is_ost(o->od_svname))
5990 rc = osd_mount(env, o, cfg);
5994 rc = osd_obj_map_init(env, o);
5998 rc = lu_site_init(&o->od_site, l);
6000 GOTO(out_compat, rc);
6001 o->od_site.ls_bottom_dev = l;
6003 rc = lu_site_init_finish(&o->od_site);
6007 /* self-repair LMA by default */
6008 o->od_lma_self_repair = 1;
6010 INIT_LIST_HEAD(&o->od_ios_list);
6011 /* setup scrub, including OI files initialization */
6012 rc = osd_scrub_setup(env, o);
6016 rc = osd_procfs_init(o, o->od_svname);
6018 CERROR("%s: can't initialize procfs: rc = %d\n",
6020 GOTO(out_scrub, rc);
6023 LASSERT(l->ld_site->ls_linkage.next && l->ld_site->ls_linkage.prev);
6025 /* initialize quota slave instance */
6026 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
6028 if (IS_ERR(o->od_quota_slave)) {
6029 rc = PTR_ERR(o->od_quota_slave);
6030 o->od_quota_slave = NULL;
6031 GOTO(out_procfs, rc);
6039 osd_scrub_cleanup(env, o);
6041 lu_site_fini(&o->od_site);
6043 osd_obj_map_fini(o);
6047 cleanup_capa_hash(o->od_capa_hash);
6052 static struct lu_device *osd_device_alloc(const struct lu_env *env,
6053 struct lu_device_type *t,
6054 struct lustre_cfg *cfg)
6056 struct osd_device *o;
6061 return ERR_PTR(-ENOMEM);
6063 rc = dt_device_init(&o->od_dt_dev, t);
6065 /* Because the ctx might be revived in dt_device_init,
6066 * refill the env here */
6067 lu_env_refill((struct lu_env *)env);
6068 rc = osd_device_init0(env, o, cfg);
6070 dt_device_fini(&o->od_dt_dev);
6073 if (unlikely(rc != 0))
6076 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
6079 static struct lu_device *osd_device_free(const struct lu_env *env,
6080 struct lu_device *d)
6082 struct osd_device *o = osd_dev(d);
6085 cleanup_capa_hash(o->od_capa_hash);
6086 /* XXX: make osd top device in order to release reference */
6087 d->ld_site->ls_top_dev = d;
6088 lu_site_purge(env, d->ld_site, -1);
6089 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
6090 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
6091 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
6093 lu_site_fini(&o->od_site);
6094 dt_device_fini(&o->od_dt_dev);
6099 static int osd_process_config(const struct lu_env *env,
6100 struct lu_device *d, struct lustre_cfg *cfg)
6102 struct osd_device *o = osd_dev(d);
6106 switch (cfg->lcfg_command) {
6108 rc = osd_mount(env, o, cfg);
6111 lu_dev_del_linkage(d->ld_site, d);
6112 rc = osd_shutdown(env, o);
6115 LASSERT(&o->od_dt_dev);
6116 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
6117 cfg, &o->od_dt_dev);
6118 if (rc > 0 || rc == -ENOSYS)
6119 rc = class_process_proc_param(PARAM_OST,
6120 lprocfs_osd_obd_vars,
6121 cfg, &o->od_dt_dev);
6130 static int osd_recovery_complete(const struct lu_env *env,
6131 struct lu_device *d)
6133 struct osd_device *osd = osd_dev(d);
6137 if (osd->od_quota_slave == NULL)
6140 /* start qsd instance on recovery completion, this notifies the quota
6141 * slave code that we are about to process new requests now */
6142 rc = qsd_start(env, osd->od_quota_slave);
6147 * we use exports to track all osd users
6149 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
6150 struct obd_device *obd, struct obd_uuid *cluuid,
6151 struct obd_connect_data *data, void *localdata)
6153 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6154 struct lustre_handle conn;
6158 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
6160 rc = class_connect(&conn, obd, cluuid);
6164 *exp = class_conn2export(&conn);
6166 spin_lock(&osd->od_osfs_lock);
6168 spin_unlock(&osd->od_osfs_lock);
6174 * once last export (we don't count self-export) disappeared
6175 * osd can be released
6177 static int osd_obd_disconnect(struct obd_export *exp)
6179 struct obd_device *obd = exp->exp_obd;
6180 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6181 int rc, release = 0;
6184 /* Only disconnect the underlying layers on the final disconnect. */
6185 spin_lock(&osd->od_osfs_lock);
6187 if (osd->od_connects == 0)
6189 spin_unlock(&osd->od_osfs_lock);
6191 rc = class_disconnect(exp); /* bz 9811 */
6193 if (rc == 0 && release)
6194 class_manual_cleanup(obd);
6198 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
6199 struct lu_device *dev)
6201 struct osd_device *osd = osd_dev(dev);
6205 if (osd->od_quota_slave != NULL) {
6206 /* set up quota slave objects */
6207 result = qsd_prepare(env, osd->od_quota_slave);
6212 result = osd_fid_init(env, osd);
6217 int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
6218 struct lu_fid *fid, struct md_op_data *op_data)
6220 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
6222 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
6225 static const struct lu_object_operations osd_lu_obj_ops = {
6226 .loo_object_init = osd_object_init,
6227 .loo_object_delete = osd_object_delete,
6228 .loo_object_release = osd_object_release,
6229 .loo_object_free = osd_object_free,
6230 .loo_object_print = osd_object_print,
6231 .loo_object_invariant = osd_object_invariant
6234 const struct lu_device_operations osd_lu_ops = {
6235 .ldo_object_alloc = osd_object_alloc,
6236 .ldo_process_config = osd_process_config,
6237 .ldo_recovery_complete = osd_recovery_complete,
6238 .ldo_prepare = osd_prepare,
6241 static const struct lu_device_type_operations osd_device_type_ops = {
6242 .ldto_init = osd_type_init,
6243 .ldto_fini = osd_type_fini,
6245 .ldto_start = osd_type_start,
6246 .ldto_stop = osd_type_stop,
6248 .ldto_device_alloc = osd_device_alloc,
6249 .ldto_device_free = osd_device_free,
6251 .ldto_device_init = osd_device_init,
6252 .ldto_device_fini = osd_device_fini
6255 struct lu_device_type osd_device_type = {
6256 .ldt_tags = LU_DEVICE_DT,
6257 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
6258 .ldt_ops = &osd_device_type_ops,
6259 .ldt_ctx_tags = LCT_LOCAL,
6263 * lprocfs legacy support.
6265 static struct obd_ops osd_obd_device_ops = {
6266 .o_owner = THIS_MODULE,
6267 .o_connect = osd_obd_connect,
6268 .o_disconnect = osd_obd_disconnect,
6269 .o_fid_alloc = osd_fid_alloc,
6272 static int __init osd_mod_init(void)
6278 rc = lu_kmem_init(ldiskfs_caches);
6282 rc = class_register_type(&osd_obd_device_ops, NULL, true,
6283 lprocfs_osd_module_vars,
6284 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
6286 lu_kmem_fini(ldiskfs_caches);
6290 static void __exit osd_mod_exit(void)
6292 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
6293 lu_kmem_fini(ldiskfs_caches);
6296 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
6297 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
6298 MODULE_LICENSE("GPL");
6300 cfs_module(osd, "0.1.0", osd_mod_init, osd_mod_exit);