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_MDS
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 "osd_internal.h"
67 #include "osd_dynlocks.h"
69 /* llo_* api support */
70 #include <md_object.h>
71 #include <lustre_quota.h>
74 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
75 "ldiskfs with parallel directory operations");
77 int ldiskfs_track_declares_assert;
78 CFS_MODULE_PARM(ldiskfs_track_declares_assert, "i", int, 0644,
79 "LBUG during tracking of declares");
81 /* Slab to allocate dynlocks */
82 struct kmem_cache *dynlock_cachep;
84 static struct lu_kmem_descr ldiskfs_caches[] = {
86 .ckd_cache = &dynlock_cachep,
87 .ckd_name = "dynlock_cache",
88 .ckd_size = sizeof(struct dynlock_handle)
95 static const char dot[] = ".";
96 static const char dotdot[] = "..";
97 static const char remote_obj_dir[] = "REM_OBJ_DIR";
99 static const struct lu_object_operations osd_lu_obj_ops;
100 static const struct dt_object_operations osd_obj_ops;
101 static const struct dt_object_operations osd_obj_ea_ops;
102 static const struct dt_object_operations osd_obj_otable_it_ops;
103 static const struct dt_index_operations osd_index_iam_ops;
104 static const struct dt_index_operations osd_index_ea_ops;
106 int osd_trans_declare_op2rb[] = {
107 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
108 [OSD_OT_PUNCH] = OSD_OT_MAX,
109 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
110 [OSD_OT_CREATE] = OSD_OT_DESTROY,
111 [OSD_OT_DESTROY] = OSD_OT_CREATE,
112 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
113 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
114 [OSD_OT_WRITE] = OSD_OT_WRITE,
115 [OSD_OT_INSERT] = OSD_OT_DELETE,
116 [OSD_OT_DELETE] = OSD_OT_INSERT,
117 [OSD_OT_UPDATE] = OSD_OT_MAX,
118 [OSD_OT_QUOTA] = OSD_OT_MAX,
121 static int osd_has_index(const struct osd_object *obj)
123 return obj->oo_dt.do_index_ops != NULL;
126 static int osd_object_invariant(const struct lu_object *l)
128 return osd_invariant(osd_obj(l));
132 * Concurrency: doesn't matter
134 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
136 return osd_oti_get(env)->oti_r_locks > 0;
140 * Concurrency: doesn't matter
142 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
144 struct osd_thread_info *oti = osd_oti_get(env);
145 return oti->oti_w_locks > 0 && o->oo_owner == env;
149 * Concurrency: doesn't access mutable data
151 static int osd_root_get(const struct lu_env *env,
152 struct dt_device *dev, struct lu_fid *f)
154 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
159 * OSD object methods.
163 * Concurrency: no concurrent access is possible that early in object
166 static struct lu_object *osd_object_alloc(const struct lu_env *env,
167 const struct lu_object_header *hdr,
170 struct osd_object *mo;
176 l = &mo->oo_dt.do_lu;
177 dt_object_init(&mo->oo_dt, NULL, d);
178 mo->oo_dt.do_ops = &osd_obj_ea_ops;
179 l->lo_ops = &osd_lu_obj_ops;
180 init_rwsem(&mo->oo_sem);
181 init_rwsem(&mo->oo_ext_idx_sem);
182 spin_lock_init(&mo->oo_guard);
189 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
190 struct dentry *dentry, struct lustre_mdt_attrs *lma)
194 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
195 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
196 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
198 if ((void *)lma != (void *)info->oti_mdt_attrs_old)
199 memcpy(lma, info->oti_mdt_attrs_old, sizeof(*lma));
201 lustre_lma_swab(lma);
202 /* Check LMA compatibility */
203 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
204 CWARN("%.16s: unsupported incompat LMA feature(s) %#x "
205 "for fid = "DFID", ino = %lu\n",
206 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
207 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
208 PFID(&lma->lma_self_fid), inode->i_ino);
211 } else if (rc == 0) {
219 * retrieve object from backend ext fs.
221 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
222 struct osd_inode_id *id)
224 struct inode *inode = NULL;
226 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
228 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
229 id->oii_ino, PTR_ERR(inode));
230 } else if (id->oii_gen != OSD_OII_NOGEN &&
231 inode->i_generation != id->oii_gen) {
232 CDEBUG(D_INODE, "unmatched inode: ino = %u, gen0 = %u, "
234 id->oii_ino, id->oii_gen, inode->i_generation);
236 inode = ERR_PTR(-ESTALE);
237 } else if (inode->i_nlink == 0) {
238 /* due to parallel readdir and unlink,
239 * we can have dead inode here. */
240 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
241 make_bad_inode(inode);
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);
292 * \retval +v: new filter_fid, does not contain self-fid
293 * \retval 0: filter_fid_old, contains self-fid
294 * \retval -v: other failure cases
296 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
297 struct dentry *dentry, struct lu_fid *fid)
299 struct filter_fid_old *ff = &info->oti_ff;
300 struct ost_id *ostid = &info->oti_ostid;
303 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
304 if (rc == sizeof(*ff)) {
306 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
307 ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
308 /* XXX: should use real OST index in the future. LU-3569 */
309 ostid_to_fid(fid, ostid, 0);
310 } else if (rc == sizeof(struct filter_fid)) {
312 } else if (rc >= 0) {
319 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
321 struct osd_thread_info *info = osd_oti_get(env);
322 struct osd_device *osd = osd_obj2dev(obj);
323 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
324 struct inode *inode = obj->oo_inode;
325 struct dentry *dentry = &info->oti_obj_dentry;
326 struct lu_fid *fid = NULL;
330 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_INVALID_ENTRY))
333 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
334 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
335 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
336 if (rc == -ENODATA && !fid_is_igif(lu_object_fid(&obj->oo_dt.do_lu)) &&
338 fid = &lma->lma_self_fid;
339 rc = osd_get_idif(info, inode, dentry, fid);
340 if ((rc > 0) || (rc == -ENODATA && osd->od_lma_self_repair)) {
343 /* For the given OST-object, if it has neither LMA nor
344 * FID in XATTR_NAME_FID, then the given FID (which is
345 * contained in the @obj, from client RPC for locating
346 * the OST-object) is trusted. We use it to generate
349 LASSERT(current->journal_info == NULL);
351 jh = ldiskfs_journal_start_sb(osd_sb(osd),
352 osd_dto_credits_noquota[DTO_XATTR_SET]);
354 CWARN("%s: cannot start journal for "
355 "lma_self_repair: rc = %ld\n",
356 osd_name(osd), PTR_ERR(jh));
360 rc = osd_ea_fid_set(info, inode,
361 lu_object_fid(&obj->oo_dt.do_lu),
362 fid_is_on_ost(info, osd,
363 lu_object_fid(&obj->oo_dt.do_lu),
365 LMAC_FID_ON_OST : 0, 0);
367 CWARN("%s: cannot self repair the LMA: "
368 "rc = %d\n", osd_name(osd), rc);
369 ldiskfs_journal_stop(jh);
374 if (unlikely(rc == -ENODATA))
382 lustre_lma_swab(lma);
383 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
384 CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
385 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
386 "fid = "DFID", ino = %lu\n", osd_name(osd),
387 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
388 PFID(lu_object_fid(&obj->oo_dt.do_lu)),
391 } else if (!(lma->lma_compat & LMAC_NOT_IN_OI)) {
392 fid = &lma->lma_self_fid;
397 unlikely(!lu_fid_eq(lu_object_fid(&obj->oo_dt.do_lu), fid))) {
398 CDEBUG(D_INODE, "%s: FID "DFID" != self_fid "DFID"\n",
399 osd_name(osd), PFID(lu_object_fid(&obj->oo_dt.do_lu)),
400 PFID(&lma->lma_self_fid));
407 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
408 const struct lu_fid *fid,
409 const struct lu_object_conf *conf)
411 struct osd_thread_info *info;
412 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
413 struct osd_device *dev;
414 struct osd_idmap_cache *oic;
415 struct osd_inode_id *id;
417 struct osd_scrub *scrub;
418 struct scrub_file *sf;
422 bool triggered = false;
425 LINVRNT(osd_invariant(obj));
426 LASSERT(obj->oo_inode == NULL);
427 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID, PFID(fid));
430 scrub = &dev->od_scrub;
431 sf = &scrub->os_file;
432 info = osd_oti_get(env);
434 oic = &info->oti_cache;
436 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
439 /* For the object is created as locking anchor, or for the object to
440 * be created on disk. No need to osd_oi_lookup() at here because FID
441 * shouldn't never be re-used, if it's really a duplicate FID from
442 * unexpected reason, we should be able to detect it later by calling
443 * do_create->osd_oi_insert(). */
444 if (conf != NULL && conf->loc_flags & LOC_F_NEW)
445 GOTO(out, result = 0);
447 /* Search order: 1. per-thread cache. */
448 if (lu_fid_eq(fid, &oic->oic_fid) &&
449 likely(oic->oic_dev == dev)) {
455 if (!cfs_list_empty(&scrub->os_inconsistent_items)) {
456 /* Search order: 2. OI scrub pending list. */
457 result = osd_oii_lookup(dev, fid, id);
462 /* Search order: 3. OI files. */
463 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
464 if (result == -ENOENT) {
465 if (!fid_is_norm(fid) ||
466 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
467 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
469 GOTO(out, result = 0);
480 inode = osd_iget(info, dev, id);
482 result = PTR_ERR(inode);
483 if (result == -ENOENT || result == -ESTALE) {
485 fid_zero(&oic->oic_fid);
486 GOTO(out, result = -ENOENT);
489 /* XXX: There are three possible cases:
490 * 1. Backup/restore caused the OI invalid.
491 * 2. Someone unlinked the object but NOT removed
492 * the OI mapping, such as mount target device
493 * as ldiskfs, and modify something directly.
494 * 3. Someone just removed the object between the
495 * former oi_lookup and the iget. It is normal.
497 * It is diffcult to distinguish the 2nd from the
498 * 1st case. Relatively speaking, the 1st case is
499 * common than the 2nd case, trigger OI scrub. */
500 result = osd_oi_lookup(info, dev, fid, id, true);
502 /* It is the case 1 or 2. */
504 } else if (result == -EREMCHG) {
507 if (unlikely(triggered))
508 GOTO(out, result = saved);
511 if (thread_is_running(&scrub->os_thread)) {
512 result = -EINPROGRESS;
513 } else if (!dev->od_noscrub) {
514 result = osd_scrub_start(dev);
515 LCONSOLE_ERROR("%.16s: trigger OI scrub by RPC "
516 "for "DFID", rc = %d [1]\n",
517 LDISKFS_SB(osd_sb(dev))->s_es->\
518 s_volume_name,PFID(fid), result);
519 if (result == 0 || result == -EALREADY)
520 result = -EINPROGRESS;
525 /* We still have chance to get the valid inode: for the
526 * object which is referenced by remote name entry, the
527 * object on the local MDT will be linked under the dir
528 * of "/REMOTE_PARENT_DIR" with its FID string as name.
530 * We do not know whether the object for the given FID
531 * is referenced by some remote name entry or not, and
532 * especially for DNE II, a multiple-linked object may
533 * have many name entries reside on many MDTs.
535 * To simplify the operation, OSD will not distinguish
536 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
537 * only happened for the RPC from other MDT during the
538 * OI scrub, or for the client side RPC with FID only,
539 * such as FID to path, or from old connected client. */
541 result = osd_lookup_in_remote_parent(info, dev,
554 obj->oo_inode = inode;
555 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
557 result = osd_check_lma(env, obj);
560 obj->oo_inode = NULL;
561 if (result == -EREMCHG)
567 obj->oo_compat_dot_created = 1;
568 obj->oo_compat_dotdot_created = 1;
570 if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
571 GOTO(out, result = 0);
573 LASSERT(obj->oo_hl_head == NULL);
574 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
575 if (obj->oo_hl_head == NULL) {
576 obj->oo_inode = NULL;
578 GOTO(out, result = -ENOMEM);
580 GOTO(out, result = 0);
583 LINVRNT(osd_invariant(obj));
588 * Concurrency: shouldn't matter.
590 static void osd_object_init0(struct osd_object *obj)
592 LASSERT(obj->oo_inode != NULL);
593 obj->oo_dt.do_body_ops = &osd_body_ops;
594 obj->oo_dt.do_lu.lo_header->loh_attr |=
595 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
599 * Concurrency: no concurrent access is possible that early in object
602 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
603 const struct lu_object_conf *conf)
605 struct osd_object *obj = osd_obj(l);
608 LINVRNT(osd_invariant(obj));
610 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
611 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
612 l->lo_header->loh_attr |= LOHA_EXISTS;
616 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
617 obj->oo_dt.do_body_ops = &osd_body_ops_new;
618 if (result == 0 && obj->oo_inode != NULL)
619 osd_object_init0(obj);
621 LINVRNT(osd_invariant(obj));
626 * Concurrency: no concurrent access is possible that late in object
629 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
631 struct osd_object *obj = osd_obj(l);
633 LINVRNT(osd_invariant(obj));
635 dt_object_fini(&obj->oo_dt);
636 if (obj->oo_hl_head != NULL)
637 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
642 * Concurrency: no concurrent access is possible that late in object
645 static void osd_index_fini(struct osd_object *o)
647 struct iam_container *bag;
649 if (o->oo_dir != NULL) {
650 bag = &o->oo_dir->od_container;
651 if (o->oo_inode != NULL) {
652 if (bag->ic_object == o->oo_inode)
653 iam_container_fini(bag);
655 OBD_FREE_PTR(o->oo_dir);
661 * Concurrency: no concurrent access is possible that late in object
662 * life-cycle (for all existing callers, that is. New callers have to provide
663 * their own locking.)
665 static int osd_inode_unlinked(const struct inode *inode)
667 return inode->i_nlink == 0;
671 OSD_TXN_OI_DELETE_CREDITS = 20,
672 OSD_TXN_INODE_DELETE_CREDITS = 20
679 #if OSD_THANDLE_STATS
681 * Set time when the handle is allocated
683 static void osd_th_alloced(struct osd_thandle *oth)
685 oth->oth_alloced = cfs_time_current();
689 * Set time when the handle started
691 static void osd_th_started(struct osd_thandle *oth)
693 oth->oth_started = cfs_time_current();
697 * Helper function to convert time interval to microseconds packed in
700 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
704 cfs_duration_usec(cfs_time_sub(end, start), &val);
705 return val.tv_sec * 1000000 + val.tv_usec;
709 * Check whether the we deal with this handle for too long.
711 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
712 cfs_time_t alloced, cfs_time_t started,
715 cfs_time_t now = cfs_time_current();
717 LASSERT(dev != NULL);
719 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
720 interval_to_usec(alloced, started));
721 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
722 interval_to_usec(started, closed));
723 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
724 interval_to_usec(closed, now));
726 if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
727 CWARN("transaction handle %p was open for too long: "
729 "alloced "CFS_TIME_T" ,"
730 "started "CFS_TIME_T" ,"
731 "closed "CFS_TIME_T"\n",
732 oth, now, alloced, started, closed);
733 libcfs_debug_dumpstack(NULL);
737 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
739 cfs_time_t __closed = cfs_time_current(); \
740 cfs_time_t __alloced = oth->oth_alloced; \
741 cfs_time_t __started = oth->oth_started; \
744 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
747 #else /* OSD_THANDLE_STATS */
749 #define osd_th_alloced(h) do {} while(0)
750 #define osd_th_started(h) do {} while(0)
751 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
753 #endif /* OSD_THANDLE_STATS */
756 * Concurrency: doesn't access mutable data.
758 static int osd_param_is_not_sane(const struct osd_device *dev,
759 const struct thandle *th)
761 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
763 return oh->ot_credits > osd_journal(dev)->j_max_transaction_buffers;
767 * Concurrency: shouldn't matter.
769 static void osd_trans_commit_cb(struct super_block *sb,
770 struct ldiskfs_journal_cb_entry *jcb, int error)
772 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
773 struct thandle *th = &oh->ot_super;
774 struct lu_device *lud = &th->th_dev->dd_lu_dev;
775 struct dt_txn_commit_cb *dcb, *tmp;
777 LASSERT(oh->ot_handle == NULL);
780 CERROR("transaction @0x%p commit error: %d\n", th, error);
782 dt_txn_hook_commit(th);
784 /* call per-transaction callbacks if any */
785 cfs_list_for_each_entry_safe(dcb, tmp, &oh->ot_dcb_list, dcb_linkage) {
786 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
787 "commit callback entry: magic=%x name='%s'\n",
788 dcb->dcb_magic, dcb->dcb_name);
789 cfs_list_del_init(&dcb->dcb_linkage);
790 dcb->dcb_func(NULL, th, dcb, error);
793 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
797 lu_context_exit(&th->th_ctx);
798 lu_context_fini(&th->th_ctx);
802 static struct thandle *osd_trans_create(const struct lu_env *env,
805 struct osd_thread_info *oti = osd_oti_get(env);
806 struct osd_iobuf *iobuf = &oti->oti_iobuf;
807 struct osd_thandle *oh;
811 /* on pending IO in this thread should left from prev. request */
812 LASSERT(cfs_atomic_read(&iobuf->dr_numreqs) == 0);
814 th = ERR_PTR(-ENOMEM);
815 OBD_ALLOC_GFP(oh, sizeof *oh, __GFP_IO);
817 oh->ot_quota_trans = &oti->oti_quota_trans;
818 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
822 th->th_tags = LCT_TX_HANDLE;
824 oti->oti_dev = osd_dt_dev(d);
825 CFS_INIT_LIST_HEAD(&oh->ot_dcb_list);
828 memset(oti->oti_declare_ops, 0,
829 sizeof(oti->oti_declare_ops));
830 memset(oti->oti_declare_ops_rb, 0,
831 sizeof(oti->oti_declare_ops_rb));
832 memset(oti->oti_declare_ops_cred, 0,
833 sizeof(oti->oti_declare_ops_cred));
834 oti->oti_rollback = false;
840 * Concurrency: shouldn't matter.
842 int osd_trans_start(const struct lu_env *env, struct dt_device *d,
845 struct osd_thread_info *oti = osd_oti_get(env);
846 struct osd_device *dev = osd_dt_dev(d);
848 struct osd_thandle *oh;
853 LASSERT(current->journal_info == NULL);
855 oh = container_of0(th, struct osd_thandle, ot_super);
857 LASSERT(oh->ot_handle == NULL);
859 rc = dt_txn_hook_start(env, d, th);
863 if (unlikely(osd_param_is_not_sane(dev, th))) {
864 static unsigned long last_printed;
865 static int last_credits;
867 CWARN("%.16s: too many transaction credits (%d > %d)\n",
868 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
870 osd_journal(dev)->j_max_transaction_buffers);
871 CWARN(" create: %u/%u, delete: %u/%u, destroy: %u/%u\n",
872 oti->oti_declare_ops[OSD_OT_CREATE],
873 oti->oti_declare_ops_cred[OSD_OT_CREATE],
874 oti->oti_declare_ops[OSD_OT_DELETE],
875 oti->oti_declare_ops_cred[OSD_OT_DELETE],
876 oti->oti_declare_ops[OSD_OT_DESTROY],
877 oti->oti_declare_ops_cred[OSD_OT_DESTROY]);
878 CWARN(" attr_set: %u/%u, xattr_set: %u/%u\n",
879 oti->oti_declare_ops[OSD_OT_ATTR_SET],
880 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
881 oti->oti_declare_ops[OSD_OT_XATTR_SET],
882 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET]);
883 CWARN(" write: %u/%u, punch: %u/%u, quota %u/%u\n",
884 oti->oti_declare_ops[OSD_OT_WRITE],
885 oti->oti_declare_ops_cred[OSD_OT_WRITE],
886 oti->oti_declare_ops[OSD_OT_PUNCH],
887 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
888 oti->oti_declare_ops[OSD_OT_QUOTA],
889 oti->oti_declare_ops_cred[OSD_OT_QUOTA]);
890 CWARN(" insert: %u/%u, delete: %u/%u\n",
891 oti->oti_declare_ops[OSD_OT_INSERT],
892 oti->oti_declare_ops_cred[OSD_OT_INSERT],
893 oti->oti_declare_ops[OSD_OT_DESTROY],
894 oti->oti_declare_ops_cred[OSD_OT_DESTROY]);
895 CWARN(" ref_add: %u/%u, ref_del: %u/%u\n",
896 oti->oti_declare_ops[OSD_OT_REF_ADD],
897 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
898 oti->oti_declare_ops[OSD_OT_REF_DEL],
899 oti->oti_declare_ops_cred[OSD_OT_REF_DEL]);
901 if (last_credits != oh->ot_credits &&
902 time_after(jiffies, last_printed + 60 * HZ)) {
903 libcfs_debug_dumpstack(NULL);
904 last_credits = oh->ot_credits;
905 last_printed = jiffies;
907 /* XXX Limit the credits to 'max_transaction_buffers', and
908 * let the underlying filesystem to catch the error if
909 * we really need so many credits.
911 * This should be removed when we can calculate the
912 * credits precisely. */
913 oh->ot_credits = osd_journal(dev)->j_max_transaction_buffers;
917 * XXX temporary stuff. Some abstraction layer should
920 jh = ldiskfs_journal_start_sb(osd_sb(dev), oh->ot_credits);
924 LASSERT(oti->oti_txns == 0);
925 lu_context_init(&th->th_ctx, th->th_tags);
926 lu_context_enter(&th->th_ctx);
928 lu_device_get(&d->dd_lu_dev);
929 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
941 * Concurrency: shouldn't matter.
943 static int osd_trans_stop(const struct lu_env *env, struct thandle *th)
946 struct osd_thandle *oh;
947 struct osd_thread_info *oti = osd_oti_get(env);
948 struct osd_iobuf *iobuf = &oti->oti_iobuf;
949 struct qsd_instance *qsd = oti->oti_dev->od_quota_slave;
952 oh = container_of0(th, struct osd_thandle, ot_super);
955 /* inform the quota slave device that the transaction is
957 qsd_op_end(env, qsd, oh->ot_quota_trans);
958 oh->ot_quota_trans = NULL;
960 if (oh->ot_handle != NULL) {
961 handle_t *hdl = oh->ot_handle;
964 * add commit callback
965 * notice we don't do this in osd_trans_start()
966 * as underlying transaction can change during truncate
968 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
971 LASSERT(oti->oti_txns == 1);
973 rc = dt_txn_hook_stop(env, th);
975 CERROR("Failure in transaction hook: %d\n", rc);
977 /* hook functions might modify th_sync */
978 hdl->h_sync = th->th_sync;
980 oh->ot_handle = NULL;
981 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
982 rc = ldiskfs_journal_stop(hdl));
984 CERROR("Failure to stop transaction: %d\n", rc);
989 /* as we want IO to journal and data IO be concurrent, we don't block
990 * awaiting data IO completion in osd_do_bio(), instead we wait here
991 * once transaction is submitted to the journal. all reqular requests
992 * don't do direct IO (except read/write), thus this wait_event becomes
995 * IMPORTANT: we have to wait till any IO submited by the thread is
996 * completed otherwise iobuf may be corrupted by different request
998 wait_event(iobuf->dr_wait,
999 cfs_atomic_read(&iobuf->dr_numreqs) == 0);
1001 rc = iobuf->dr_error;
1006 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1008 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1011 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1012 LASSERT(&dcb->dcb_func != NULL);
1013 cfs_list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
1019 * Called just before object is freed. Releases all resources except for
1020 * object itself (that is released by osd_object_free()).
1022 * Concurrency: no concurrent access is possible that late in object
1025 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1027 struct osd_object *obj = osd_obj(l);
1028 struct inode *inode = obj->oo_inode;
1030 LINVRNT(osd_invariant(obj));
1033 * If object is unlinked remove fid->ino mapping from object index.
1036 osd_index_fini(obj);
1037 if (inode != NULL) {
1038 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1039 qid_t uid = inode->i_uid;
1040 qid_t gid = inode->i_gid;
1043 obj->oo_inode = NULL;
1046 struct osd_thread_info *info = osd_oti_get(env);
1047 struct lquota_id_info *qi = &info->oti_qi;
1049 /* Release granted quota to master if necessary */
1050 qi->lqi_id.qid_uid = uid;
1051 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
1053 qi->lqi_id.qid_uid = gid;
1054 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
1060 * Concurrency: ->loo_object_release() is called under site spin-lock.
1062 static void osd_object_release(const struct lu_env *env,
1063 struct lu_object *l)
1068 * Concurrency: shouldn't matter.
1070 static int osd_object_print(const struct lu_env *env, void *cookie,
1071 lu_printer_t p, const struct lu_object *l)
1073 struct osd_object *o = osd_obj(l);
1074 struct iam_descr *d;
1076 if (o->oo_dir != NULL)
1077 d = o->oo_dir->od_container.ic_descr;
1080 return (*p)(env, cookie,
1081 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
1083 o->oo_inode ? o->oo_inode->i_ino : 0UL,
1084 o->oo_inode ? o->oo_inode->i_generation : 0,
1085 d ? d->id_ops->id_name : "plain");
1089 * Concurrency: shouldn't matter.
1091 int osd_statfs(const struct lu_env *env, struct dt_device *d,
1092 struct obd_statfs *sfs)
1094 struct osd_device *osd = osd_dt_dev(d);
1095 struct super_block *sb = osd_sb(osd);
1096 struct kstatfs *ksfs;
1099 if (unlikely(osd->od_mnt == NULL))
1100 return -EINPROGRESS;
1102 /* osd_lproc.c call this without env, allocate ksfs for that case */
1103 if (unlikely(env == NULL)) {
1104 OBD_ALLOC_PTR(ksfs);
1108 ksfs = &osd_oti_get(env)->oti_ksfs;
1111 spin_lock(&osd->od_osfs_lock);
1112 /* cache 1 second */
1113 if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
1114 result = sb->s_op->statfs(sb->s_root, ksfs);
1115 if (likely(result == 0)) { /* N.B. statfs can't really fail */
1116 osd->od_osfs_age = cfs_time_current_64();
1117 statfs_pack(&osd->od_statfs, ksfs);
1118 if (sb->s_flags & MS_RDONLY)
1119 sfs->os_state = OS_STATE_READONLY;
1123 if (likely(result == 0))
1124 *sfs = osd->od_statfs;
1125 spin_unlock(&osd->od_osfs_lock);
1127 if (unlikely(env == NULL))
1134 * Estimate space needed for file creations. We assume the largest filename
1135 * which is 2^64 - 1, hence a filename of 20 chars.
1136 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
1138 #ifdef __LDISKFS_DIR_REC_LEN
1139 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
1141 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
1145 * Concurrency: doesn't access mutable data.
1147 static void osd_conf_get(const struct lu_env *env,
1148 const struct dt_device *dev,
1149 struct dt_device_param *param)
1151 struct super_block *sb = osd_sb(osd_dt_dev(dev));
1154 * XXX should be taken from not-yet-existing fs abstraction layer.
1156 param->ddp_mnt = osd_dt_dev(dev)->od_mnt;
1157 param->ddp_max_name_len = LDISKFS_NAME_LEN;
1158 param->ddp_max_nlink = LDISKFS_LINK_MAX;
1159 param->ddp_block_shift = sb->s_blocksize_bits;
1160 param->ddp_mount_type = LDD_MT_LDISKFS;
1161 param->ddp_maxbytes = sb->s_maxbytes;
1162 /* Overhead estimate should be fairly accurate, so we really take a tiny
1163 * error margin which also avoids fragmenting the filesystem too much */
1164 param->ddp_grant_reserved = 2; /* end up to be 1.9% after conversion */
1165 /* inode are statically allocated, so per-inode space consumption
1166 * is the space consumed by the directory entry */
1167 param->ddp_inodespace = PER_OBJ_USAGE;
1168 /* per-fragment overhead to be used by the client code */
1169 param->ddp_grant_frag = 6 * LDISKFS_BLOCK_SIZE(sb);
1170 param->ddp_mntopts = 0;
1171 if (test_opt(sb, XATTR_USER))
1172 param->ddp_mntopts |= MNTOPT_USERXATTR;
1173 if (test_opt(sb, POSIX_ACL))
1174 param->ddp_mntopts |= MNTOPT_ACL;
1176 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1177 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
1178 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE;
1181 param->ddp_max_ea_size = sb->s_blocksize;
1186 * Concurrency: shouldn't matter.
1188 static int osd_sync(const struct lu_env *env, struct dt_device *d)
1190 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1191 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
1195 * Start commit for OSD device.
1197 * An implementation of dt_commit_async method for OSD device.
1198 * Asychronously starts underlayng fs sync and thereby a transaction
1201 * \param env environment
1202 * \param d dt device
1204 * \see dt_device_operations
1206 static int osd_commit_async(const struct lu_env *env,
1207 struct dt_device *d)
1209 struct super_block *s = osd_sb(osd_dt_dev(d));
1212 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1213 RETURN(s->s_op->sync_fs(s, 0));
1217 * Concurrency: shouldn't matter.
1220 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1222 struct super_block *sb = osd_sb(osd_dt_dev(d));
1223 struct block_device *dev = sb->s_bdev;
1224 #ifdef HAVE_DEV_SET_RDONLY
1225 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
1228 int rc = -EOPNOTSUPP;
1232 #ifdef HAVE_DEV_SET_RDONLY
1233 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1235 if (jdev && (jdev != dev)) {
1236 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
1238 dev_set_rdonly(jdev);
1240 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
1241 dev_set_rdonly(dev);
1243 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
1244 osd_dt_dev(d)->od_svname, (long)dev, rc);
1250 * Concurrency: serialization provided by callers.
1252 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
1253 int mode, unsigned long timeout, __u32 alg,
1254 struct lustre_capa_key *keys)
1256 struct osd_device *dev = osd_dt_dev(d);
1259 dev->od_fl_capa = mode;
1260 dev->od_capa_timeout = timeout;
1261 dev->od_capa_alg = alg;
1262 dev->od_capa_keys = keys;
1267 * Note: we do not count into QUOTA here.
1268 * If we mount with --data_journal we may need more.
1270 const int osd_dto_credits_noquota[DTO_NR] = {
1273 * INDEX_EXTRA_TRANS_BLOCKS(8) +
1274 * SINGLEDATA_TRANS_BLOCKS(8)
1275 * XXX Note: maybe iam need more, since iam have more level than
1278 [DTO_INDEX_INSERT] = 16,
1279 [DTO_INDEX_DELETE] = 16,
1283 [DTO_INDEX_UPDATE] = 16,
1285 * Create a object. The same as create object in EXT3.
1286 * DATA_TRANS_BLOCKS(14) +
1287 * INDEX_EXTRA_BLOCKS(8) +
1288 * 3(inode bits, groups, GDT)
1290 [DTO_OBJECT_CREATE] = 25,
1292 * XXX: real credits to be fixed
1294 [DTO_OBJECT_DELETE] = 25,
1296 * Attr set credits (inode)
1298 [DTO_ATTR_SET_BASE] = 1,
1300 * Xattr set. The same as xattr of EXT3.
1301 * DATA_TRANS_BLOCKS(14)
1302 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1303 * are also counted in. Do not know why?
1305 [DTO_XATTR_SET] = 14,
1308 * credits for inode change during write.
1310 [DTO_WRITE_BASE] = 3,
1312 * credits for single block write.
1314 [DTO_WRITE_BLOCK] = 14,
1316 * Attr set credits for chown.
1317 * This is extra credits for setattr, and it is null without quota
1319 [DTO_ATTR_SET_CHOWN]= 0
1322 static const struct dt_device_operations osd_dt_ops = {
1323 .dt_root_get = osd_root_get,
1324 .dt_statfs = osd_statfs,
1325 .dt_trans_create = osd_trans_create,
1326 .dt_trans_start = osd_trans_start,
1327 .dt_trans_stop = osd_trans_stop,
1328 .dt_trans_cb_add = osd_trans_cb_add,
1329 .dt_conf_get = osd_conf_get,
1330 .dt_sync = osd_sync,
1332 .dt_commit_async = osd_commit_async,
1333 .dt_init_capa_ctxt = osd_init_capa_ctxt,
1336 static void osd_object_read_lock(const struct lu_env *env,
1337 struct dt_object *dt, unsigned role)
1339 struct osd_object *obj = osd_dt_obj(dt);
1340 struct osd_thread_info *oti = osd_oti_get(env);
1342 LINVRNT(osd_invariant(obj));
1344 LASSERT(obj->oo_owner != env);
1345 down_read_nested(&obj->oo_sem, role);
1347 LASSERT(obj->oo_owner == NULL);
1351 static void osd_object_write_lock(const struct lu_env *env,
1352 struct dt_object *dt, unsigned role)
1354 struct osd_object *obj = osd_dt_obj(dt);
1355 struct osd_thread_info *oti = osd_oti_get(env);
1357 LINVRNT(osd_invariant(obj));
1359 LASSERT(obj->oo_owner != env);
1360 down_write_nested(&obj->oo_sem, role);
1362 LASSERT(obj->oo_owner == NULL);
1363 obj->oo_owner = env;
1367 static void osd_object_read_unlock(const struct lu_env *env,
1368 struct dt_object *dt)
1370 struct osd_object *obj = osd_dt_obj(dt);
1371 struct osd_thread_info *oti = osd_oti_get(env);
1373 LINVRNT(osd_invariant(obj));
1375 LASSERT(oti->oti_r_locks > 0);
1377 up_read(&obj->oo_sem);
1380 static void osd_object_write_unlock(const struct lu_env *env,
1381 struct dt_object *dt)
1383 struct osd_object *obj = osd_dt_obj(dt);
1384 struct osd_thread_info *oti = osd_oti_get(env);
1386 LINVRNT(osd_invariant(obj));
1388 LASSERT(obj->oo_owner == env);
1389 LASSERT(oti->oti_w_locks > 0);
1391 obj->oo_owner = NULL;
1392 up_write(&obj->oo_sem);
1395 static int osd_object_write_locked(const struct lu_env *env,
1396 struct dt_object *dt)
1398 struct osd_object *obj = osd_dt_obj(dt);
1400 LINVRNT(osd_invariant(obj));
1402 return obj->oo_owner == env;
1405 static int capa_is_sane(const struct lu_env *env,
1406 struct osd_device *dev,
1407 struct lustre_capa *capa,
1408 struct lustre_capa_key *keys)
1410 struct osd_thread_info *oti = osd_oti_get(env);
1411 struct lustre_capa *tcapa = &oti->oti_capa;
1412 struct obd_capa *oc;
1416 oc = capa_lookup(dev->od_capa_hash, capa, 0);
1418 if (capa_is_expired(oc)) {
1419 DEBUG_CAPA(D_ERROR, capa, "expired");
1426 if (capa_is_expired_sec(capa)) {
1427 DEBUG_CAPA(D_ERROR, capa, "expired");
1431 spin_lock(&capa_lock);
1432 for (i = 0; i < 2; i++) {
1433 if (keys[i].lk_keyid == capa->lc_keyid) {
1434 oti->oti_capa_key = keys[i];
1438 spin_unlock(&capa_lock);
1441 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1445 rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1449 if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1450 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1454 oc = capa_add(dev->od_capa_hash, capa);
1460 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1461 struct lustre_capa *capa, __u64 opc)
1463 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1464 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
1465 struct lu_capainfo *lci;
1468 if (!osd->od_fl_capa)
1471 if (capa == BYPASS_CAPA)
1474 lci = lu_capainfo_get(env);
1475 if (unlikely(lci == NULL))
1478 if (lci->lci_auth == LC_ID_NONE)
1482 CERROR("%s: no capability provided for FID "DFID": rc = %d\n",
1483 osd_name(osd), PFID(fid), -EACCES);
1487 if (!lu_fid_eq(fid, &capa->lc_fid)) {
1488 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1493 if (!capa_opc_supported(capa, opc)) {
1494 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1498 rc = capa_is_sane(env, osd, capa, osd->od_capa_keys);
1500 DEBUG_CAPA(D_ERROR, capa, "insane: rc = %d", rc);
1507 static struct timespec *osd_inode_time(const struct lu_env *env,
1508 struct inode *inode, __u64 seconds)
1510 struct osd_thread_info *oti = osd_oti_get(env);
1511 struct timespec *t = &oti->oti_time;
1513 t->tv_sec = seconds;
1515 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1520 static void osd_inode_getattr(const struct lu_env *env,
1521 struct inode *inode, struct lu_attr *attr)
1523 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1524 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1525 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE |
1528 attr->la_atime = LTIME_S(inode->i_atime);
1529 attr->la_mtime = LTIME_S(inode->i_mtime);
1530 attr->la_ctime = LTIME_S(inode->i_ctime);
1531 attr->la_mode = inode->i_mode;
1532 attr->la_size = i_size_read(inode);
1533 attr->la_blocks = inode->i_blocks;
1534 attr->la_uid = inode->i_uid;
1535 attr->la_gid = inode->i_gid;
1536 attr->la_flags = LDISKFS_I(inode)->i_flags;
1537 attr->la_nlink = inode->i_nlink;
1538 attr->la_rdev = inode->i_rdev;
1539 attr->la_blksize = 1 << inode->i_blkbits;
1540 attr->la_blkbits = inode->i_blkbits;
1543 static int osd_attr_get(const struct lu_env *env,
1544 struct dt_object *dt,
1545 struct lu_attr *attr,
1546 struct lustre_capa *capa)
1548 struct osd_object *obj = osd_dt_obj(dt);
1550 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
1551 LINVRNT(osd_invariant(obj));
1553 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1556 spin_lock(&obj->oo_guard);
1557 osd_inode_getattr(env, obj->oo_inode, attr);
1558 spin_unlock(&obj->oo_guard);
1562 static int osd_declare_attr_set(const struct lu_env *env,
1563 struct dt_object *dt,
1564 const struct lu_attr *attr,
1565 struct thandle *handle)
1567 struct osd_thandle *oh;
1568 struct osd_object *obj;
1569 struct osd_thread_info *info = osd_oti_get(env);
1570 struct lquota_id_info *qi = &info->oti_qi;
1576 LASSERT(dt != NULL);
1577 LASSERT(handle != NULL);
1579 obj = osd_dt_obj(dt);
1580 LASSERT(osd_invariant(obj));
1582 oh = container_of0(handle, struct osd_thandle, ot_super);
1583 LASSERT(oh->ot_handle == NULL);
1585 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
1586 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
1588 if (attr == NULL || obj->oo_inode == NULL)
1591 bspace = obj->oo_inode->i_blocks;
1592 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
1593 bspace = toqb(bspace);
1595 /* Changing ownership is always preformed by super user, it should not
1598 * We still need to call the osd_declare_qid() to calculate the journal
1599 * credits for updating quota accounting files and to trigger quota
1600 * space adjustment once the operation is completed.*/
1601 if ((attr->la_valid & LA_UID) != 0 &&
1602 attr->la_uid != obj->oo_inode->i_uid) {
1603 qi->lqi_type = USRQUOTA;
1605 /* inode accounting */
1606 qi->lqi_is_blk = false;
1608 /* one more inode for the new owner ... */
1609 qi->lqi_id.qid_uid = attr->la_uid;
1611 allocated = (attr->la_uid == 0) ? true : false;
1612 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1613 if (rc == -EDQUOT || rc == -EINPROGRESS)
1618 /* and one less inode for the current uid */
1619 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1621 rc = osd_declare_qid(env, oh, qi, true, NULL);
1622 if (rc == -EDQUOT || rc == -EINPROGRESS)
1627 /* block accounting */
1628 qi->lqi_is_blk = true;
1630 /* more blocks for the new owner ... */
1631 qi->lqi_id.qid_uid = attr->la_uid;
1632 qi->lqi_space = bspace;
1633 allocated = (attr->la_uid == 0) ? true : false;
1634 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1635 if (rc == -EDQUOT || rc == -EINPROGRESS)
1640 /* and finally less blocks for the current owner */
1641 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1642 qi->lqi_space = -bspace;
1643 rc = osd_declare_qid(env, oh, qi, true, NULL);
1644 if (rc == -EDQUOT || rc == -EINPROGRESS)
1650 if (attr->la_valid & LA_GID &&
1651 attr->la_gid != obj->oo_inode->i_gid) {
1652 qi->lqi_type = GRPQUOTA;
1654 /* inode accounting */
1655 qi->lqi_is_blk = false;
1657 /* one more inode for the new group owner ... */
1658 qi->lqi_id.qid_gid = attr->la_gid;
1660 allocated = (attr->la_gid == 0) ? true : false;
1661 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1662 if (rc == -EDQUOT || rc == -EINPROGRESS)
1667 /* and one less inode for the current gid */
1668 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1670 rc = osd_declare_qid(env, oh, qi, true, NULL);
1671 if (rc == -EDQUOT || rc == -EINPROGRESS)
1676 /* block accounting */
1677 qi->lqi_is_blk = true;
1679 /* more blocks for the new owner ... */
1680 qi->lqi_id.qid_gid = attr->la_gid;
1681 qi->lqi_space = bspace;
1682 allocated = (attr->la_gid == 0) ? true : false;
1683 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1684 if (rc == -EDQUOT || rc == -EINPROGRESS)
1689 /* and finally less blocks for the current owner */
1690 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1691 qi->lqi_space = -bspace;
1692 rc = osd_declare_qid(env, oh, qi, true, NULL);
1693 if (rc == -EDQUOT || rc == -EINPROGRESS)
1702 static int osd_inode_setattr(const struct lu_env *env,
1703 struct inode *inode, const struct lu_attr *attr)
1707 bits = attr->la_valid;
1709 if (bits & LA_ATIME)
1710 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1711 if (bits & LA_CTIME)
1712 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1713 if (bits & LA_MTIME)
1714 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1715 if (bits & LA_SIZE) {
1716 LDISKFS_I(inode)->i_disksize = attr->la_size;
1717 i_size_write(inode, attr->la_size);
1721 /* OSD should not change "i_blocks" which is used by quota.
1722 * "i_blocks" should be changed by ldiskfs only. */
1723 if (bits & LA_BLOCKS)
1724 inode->i_blocks = attr->la_blocks;
1727 inode->i_mode = (inode->i_mode & S_IFMT) |
1728 (attr->la_mode & ~S_IFMT);
1730 inode->i_uid = attr->la_uid;
1732 inode->i_gid = attr->la_gid;
1733 if (bits & LA_NLINK)
1734 set_nlink(inode, attr->la_nlink);
1736 inode->i_rdev = attr->la_rdev;
1738 if (bits & LA_FLAGS) {
1739 /* always keep S_NOCMTIME */
1740 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1746 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
1748 if ((attr->la_valid & LA_UID && attr->la_uid != inode->i_uid) ||
1749 (attr->la_valid & LA_GID && attr->la_gid != inode->i_gid)) {
1754 if (attr->la_valid & LA_UID)
1755 iattr.ia_valid |= ATTR_UID;
1756 if (attr->la_valid & LA_GID)
1757 iattr.ia_valid |= ATTR_GID;
1758 iattr.ia_uid = attr->la_uid;
1759 iattr.ia_gid = attr->la_gid;
1761 rc = ll_vfs_dq_transfer(inode, &iattr);
1763 CERROR("%s: quota transfer failed: rc = %d. Is quota "
1764 "enforcement enabled on the ldiskfs filesystem?",
1765 inode->i_sb->s_id, rc);
1772 static int osd_attr_set(const struct lu_env *env,
1773 struct dt_object *dt,
1774 const struct lu_attr *attr,
1775 struct thandle *handle,
1776 struct lustre_capa *capa)
1778 struct osd_object *obj = osd_dt_obj(dt);
1779 struct inode *inode;
1782 LASSERT(handle != NULL);
1783 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
1784 LASSERT(osd_invariant(obj));
1786 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1789 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
1791 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING)) {
1792 struct osd_thread_info *oti = osd_oti_get(env);
1793 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
1794 struct lu_fid *fid1 = &oti->oti_fid;
1795 struct osd_inode_id *id = &oti->oti_id;
1796 struct iam_path_descr *ipd;
1797 struct iam_container *bag;
1798 struct osd_thandle *oh;
1801 fid_cpu_to_be(fid1, fid0);
1802 memset(id, 1, sizeof(*id));
1803 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
1804 fid0)->oi_dir.od_container;
1805 ipd = osd_idx_ipd_get(env, bag);
1806 if (unlikely(ipd == NULL))
1809 oh = container_of0(handle, struct osd_thandle, ot_super);
1810 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
1811 (const struct iam_rec *)id, ipd);
1812 osd_ipd_put(env, bag, ipd);
1813 return(rc > 0 ? 0 : rc);
1816 inode = obj->oo_inode;
1817 ll_vfs_dq_init(inode);
1819 rc = osd_quota_transfer(inode, attr);
1823 spin_lock(&obj->oo_guard);
1824 rc = osd_inode_setattr(env, inode, attr);
1825 spin_unlock(&obj->oo_guard);
1828 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
1832 struct dentry *osd_child_dentry_get(const struct lu_env *env,
1833 struct osd_object *obj,
1834 const char *name, const int namelen)
1836 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
1839 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1840 umode_t mode, struct dt_allocation_hint *hint,
1844 struct osd_device *osd = osd_obj2dev(obj);
1845 struct osd_thandle *oth;
1846 struct dt_object *parent = NULL;
1847 struct inode *inode;
1849 LINVRNT(osd_invariant(obj));
1850 LASSERT(obj->oo_inode == NULL);
1851 LASSERT(obj->oo_hl_head == NULL);
1853 if (S_ISDIR(mode) && ldiskfs_pdo) {
1854 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1855 if (obj->oo_hl_head == NULL)
1859 oth = container_of(th, struct osd_thandle, ot_super);
1860 LASSERT(oth->ot_handle->h_transaction != NULL);
1862 if (hint && hint->dah_parent)
1863 parent = hint->dah_parent;
1865 inode = ldiskfs_create_inode(oth->ot_handle,
1866 parent ? osd_dt_obj(parent)->oo_inode :
1867 osd_sb(osd)->s_root->d_inode,
1869 if (!IS_ERR(inode)) {
1870 /* Do not update file c/mtime in ldiskfs.
1871 * NB: don't need any lock because no contention at this
1873 inode->i_flags |= S_NOCMTIME;
1875 /* For new created object, it must be consistent,
1876 * and it is unnecessary to scrub against it. */
1877 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
1878 obj->oo_inode = inode;
1881 if (obj->oo_hl_head != NULL) {
1882 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1883 obj->oo_hl_head = NULL;
1885 result = PTR_ERR(inode);
1887 LINVRNT(osd_invariant(obj));
1895 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1896 struct lu_attr *attr,
1897 struct dt_allocation_hint *hint,
1898 struct dt_object_format *dof,
1902 struct osd_thandle *oth;
1903 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
1905 LASSERT(S_ISDIR(attr->la_mode));
1907 oth = container_of(th, struct osd_thandle, ot_super);
1908 LASSERT(oth->ot_handle->h_transaction != NULL);
1909 result = osd_mkfile(info, obj, mode, hint, th);
1914 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
1915 struct lu_attr *attr,
1916 struct dt_allocation_hint *hint,
1917 struct dt_object_format *dof,
1921 struct osd_thandle *oth;
1922 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
1924 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
1926 LASSERT(S_ISREG(attr->la_mode));
1928 oth = container_of(th, struct osd_thandle, ot_super);
1929 LASSERT(oth->ot_handle->h_transaction != NULL);
1931 result = osd_mkfile(info, obj, mode, hint, th);
1933 LASSERT(obj->oo_inode != NULL);
1934 if (feat->dif_flags & DT_IND_VARKEY)
1935 result = iam_lvar_create(obj->oo_inode,
1936 feat->dif_keysize_max,
1938 feat->dif_recsize_max,
1941 result = iam_lfix_create(obj->oo_inode,
1942 feat->dif_keysize_max,
1944 feat->dif_recsize_max,
1951 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1952 struct lu_attr *attr,
1953 struct dt_allocation_hint *hint,
1954 struct dt_object_format *dof,
1957 LASSERT(S_ISREG(attr->la_mode));
1958 return osd_mkfile(info, obj, (attr->la_mode &
1959 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1962 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1963 struct lu_attr *attr,
1964 struct dt_allocation_hint *hint,
1965 struct dt_object_format *dof,
1968 LASSERT(S_ISLNK(attr->la_mode));
1969 return osd_mkfile(info, obj, (attr->la_mode &
1970 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1973 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1974 struct lu_attr *attr,
1975 struct dt_allocation_hint *hint,
1976 struct dt_object_format *dof,
1979 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
1982 LINVRNT(osd_invariant(obj));
1983 LASSERT(obj->oo_inode == NULL);
1984 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1985 S_ISFIFO(mode) || S_ISSOCK(mode));
1987 result = osd_mkfile(info, obj, mode, hint, th);
1989 LASSERT(obj->oo_inode != NULL);
1991 * This inode should be marked dirty for i_rdev. Currently
1992 * that is done in the osd_attr_init().
1994 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
1997 LINVRNT(osd_invariant(obj));
2001 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2003 struct dt_allocation_hint *hint,
2004 struct dt_object_format *dof,
2007 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2009 osd_obj_type_f result;
2025 result = osd_mk_index;
2036 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
2037 struct dt_object *parent, struct dt_object *child,
2042 memset(ah, 0, sizeof(*ah));
2043 ah->dah_parent = parent;
2044 ah->dah_mode = child_mode;
2047 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
2048 struct lu_attr *attr, struct dt_object_format *dof)
2050 struct inode *inode = obj->oo_inode;
2051 __u64 valid = attr->la_valid;
2054 attr->la_valid &= ~(LA_TYPE | LA_MODE);
2056 if (dof->dof_type != DFT_NODE)
2057 attr->la_valid &= ~LA_RDEV;
2058 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
2059 attr->la_valid &= ~LA_ATIME;
2060 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
2061 attr->la_valid &= ~LA_CTIME;
2062 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
2063 attr->la_valid &= ~LA_MTIME;
2065 result = osd_quota_transfer(inode, attr);
2069 if (attr->la_valid != 0) {
2070 result = osd_inode_setattr(info->oti_env, inode, attr);
2072 * The osd_inode_setattr() should always succeed here. The
2073 * only error that could be returned is EDQUOT when we are
2074 * trying to change the UID or GID of the inode. However, this
2075 * should not happen since quota enforcement is no longer
2076 * enabled on ldiskfs (lquota takes care of it).
2078 LASSERTF(result == 0, "%d", result);
2079 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2082 attr->la_valid = valid;
2086 * Helper function for osd_object_create()
2088 * \retval 0, on success
2090 static int __osd_object_create(struct osd_thread_info *info,
2091 struct osd_object *obj, struct lu_attr *attr,
2092 struct dt_allocation_hint *hint,
2093 struct dt_object_format *dof,
2099 /* we drop umask so that permissions we pass are not affected */
2100 umask = current->fs->umask;
2101 current->fs->umask = 0;
2103 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
2106 osd_attr_init(info, obj, attr, dof);
2107 osd_object_init0(obj);
2109 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
2110 unlock_new_inode(obj->oo_inode);
2113 /* restore previous umask value */
2114 current->fs->umask = umask;
2120 * Helper function for osd_object_create()
2122 * \retval 0, on success
2124 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
2125 const struct lu_fid *fid, struct thandle *th)
2127 struct osd_thread_info *info = osd_oti_get(env);
2128 struct osd_inode_id *id = &info->oti_id;
2129 struct osd_device *osd = osd_obj2dev(obj);
2131 LASSERT(obj->oo_inode != NULL);
2133 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
2134 return osd_oi_insert(info, osd, fid, id, th, OI_CHECK_FLD);
2137 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
2138 obd_seq seq, struct lu_seq_range *range)
2140 struct seq_server_site *ss = osd_seq_site(osd);
2143 if (fid_seq_is_idif(seq)) {
2144 fld_range_set_ost(range);
2145 range->lsr_index = idif_ost_idx(seq);
2149 if (!fid_seq_in_fldb(seq)) {
2150 fld_range_set_mdt(range);
2152 /* FIXME: If ss is NULL, it suppose not get lsr_index
2154 range->lsr_index = ss->ss_node_id;
2158 LASSERT(ss != NULL);
2159 fld_range_set_any(range);
2160 rc = fld_server_lookup(env, ss->ss_server_fld, seq, range);
2162 CERROR("%s: cannot find FLD range for "LPX64": rc = %d\n",
2163 osd_name(osd), seq, rc);
2169 * Concurrency: no external locking is necessary.
2171 static int osd_declare_object_create(const struct lu_env *env,
2172 struct dt_object *dt,
2173 struct lu_attr *attr,
2174 struct dt_allocation_hint *hint,
2175 struct dt_object_format *dof,
2176 struct thandle *handle)
2178 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
2179 struct osd_thandle *oh;
2183 LASSERT(handle != NULL);
2185 oh = container_of0(handle, struct osd_thandle, ot_super);
2186 LASSERT(oh->ot_handle == NULL);
2188 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
2189 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
2190 if (!fid_is_on_ost(osd_oti_get(env), osd_dt_dev(handle->th_dev),
2191 lu_object_fid(&dt->do_lu), OI_CHECK_FLD))
2192 /* Reuse idle OI block may cause additional one OI block
2194 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2195 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
2197 /* If this is directory, then we expect . and .. to be inserted as
2198 * well. The one directory block always needs to be created for the
2199 * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
2200 * block), there is no danger of needing a tree for the first block.
2202 if (attr && S_ISDIR(attr->la_mode)) {
2203 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2204 osd_dto_credits_noquota[DTO_WRITE_BASE]);
2205 osd_trans_declare_op(env, oh, OSD_OT_INSERT, 0);
2211 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
2212 false, false, NULL, false);
2216 /* It does fld look up inside declare, and the result will be
2217 * added to fld cache, so the following fld lookup inside insert
2218 * does not need send RPC anymore, so avoid send rpc with holding
2220 if (fid_is_norm(lu_object_fid(&dt->do_lu)) &&
2221 !fid_is_last_id(lu_object_fid(&dt->do_lu)))
2222 osd_fld_lookup(env, osd_dt_dev(handle->th_dev),
2223 fid_seq(lu_object_fid(&dt->do_lu)), range);
2229 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
2230 struct lu_attr *attr,
2231 struct dt_allocation_hint *hint,
2232 struct dt_object_format *dof,
2235 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2236 struct osd_object *obj = osd_dt_obj(dt);
2237 struct osd_thread_info *info = osd_oti_get(env);
2242 LINVRNT(osd_invariant(obj));
2243 LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
2244 LASSERT(osd_write_locked(env, obj));
2245 LASSERT(th != NULL);
2247 if (unlikely(fid_is_acct(fid)))
2248 /* Quota files can't be created from the kernel any more,
2249 * 'tune2fs -O quota' will take care of creating them */
2252 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2253 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2255 result = __osd_object_create(info, obj, attr, hint, dof, th);
2257 result = __osd_oi_insert(env, obj, fid, th);
2259 LASSERT(ergo(result == 0,
2260 dt_object_exists(dt) && !dt_object_remote(dt)));
2262 LASSERT(osd_invariant(obj));
2267 * Called to destroy on-disk representation of the object
2269 * Concurrency: must be locked
2271 static int osd_declare_object_destroy(const struct lu_env *env,
2272 struct dt_object *dt,
2275 struct osd_object *obj = osd_dt_obj(dt);
2276 struct inode *inode = obj->oo_inode;
2277 struct osd_thandle *oh;
2281 oh = container_of0(th, struct osd_thandle, ot_super);
2282 LASSERT(oh->ot_handle == NULL);
2285 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
2286 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
2287 /* Recycle idle OI leaf may cause additional three OI blocks
2289 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
2290 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
2291 /* one less inode */
2292 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, -1, oh,
2293 false, true, NULL, false);
2296 /* data to be truncated */
2297 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
2298 true, true, NULL, false);
2302 static int osd_object_destroy(const struct lu_env *env,
2303 struct dt_object *dt,
2306 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2307 struct osd_object *obj = osd_dt_obj(dt);
2308 struct inode *inode = obj->oo_inode;
2309 struct osd_device *osd = osd_obj2dev(obj);
2310 struct osd_thandle *oh;
2314 oh = container_of0(th, struct osd_thandle, ot_super);
2315 LASSERT(oh->ot_handle);
2317 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2319 if (unlikely(fid_is_acct(fid)))
2322 if (S_ISDIR(inode->i_mode)) {
2323 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1);
2324 /* it will check/delete the inode from remote parent,
2325 * how to optimize it? unlink performance impaction XXX */
2326 result = osd_delete_from_remote_parent(env, osd, obj, oh);
2327 if (result != 0 && result != -ENOENT) {
2328 CERROR("%s: delete inode "DFID": rc = %d\n",
2329 osd_name(osd), PFID(fid), result);
2331 spin_lock(&obj->oo_guard);
2333 spin_unlock(&obj->oo_guard);
2334 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2337 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
2339 result = osd_oi_delete(osd_oti_get(env), osd, fid, th, OI_CHECK_FLD);
2341 /* XXX: add to ext3 orphan list */
2342 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2344 /* not needed in the cache anymore */
2345 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2351 * Put the fid into lustre_mdt_attrs, and then place the structure
2352 * inode's ea. This fid should not be altered during the life time
2355 * \retval +ve, on success
2356 * \retval -ve, on error
2358 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2360 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
2361 const struct lu_fid *fid, __u32 compat, __u32 incompat)
2363 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
2367 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
2370 lustre_lma_init(lma, fid, compat, incompat);
2371 lustre_lma_swab(lma);
2373 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma, sizeof(*lma),
2375 /* LMA may already exist, but we need to check that all the
2376 * desired compat/incompat flags have been added. */
2377 if (unlikely(rc == -EEXIST)) {
2378 if (compat == 0 && incompat == 0)
2381 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
2382 XATTR_NAME_LMA, info->oti_mdt_attrs_old,
2387 lustre_lma_swab(lma);
2388 if (!(~lma->lma_compat & compat) &&
2389 !(~lma->lma_incompat & incompat))
2392 lma->lma_compat |= compat;
2393 lma->lma_incompat |= incompat;
2394 lustre_lma_swab(lma);
2395 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
2396 sizeof(*lma), XATTR_REPLACE);
2403 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2404 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2405 * To have compatilibility with 1.8 ldiskfs driver we need to have
2406 * magic number at start of fid data.
2407 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2410 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2411 const struct dt_rec *fid)
2413 if (!fid_is_namespace_visible((const struct lu_fid *)fid) ||
2414 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
2415 param->edp_magic = 0;
2419 param->edp_magic = LDISKFS_LUFID_MAGIC;
2420 param->edp_len = sizeof(struct lu_fid) + 1;
2421 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
2425 * Try to read the fid from inode ea into dt_rec.
2427 * \param fid object fid.
2429 * \retval 0 on success
2431 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2432 __u32 ino, struct lu_fid *fid,
2433 struct osd_inode_id *id)
2435 struct osd_thread_info *info = osd_oti_get(env);
2436 struct inode *inode;
2439 osd_id_gen(id, ino, OSD_OII_NOGEN);
2440 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2442 RETURN(PTR_ERR(inode));
2448 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
2450 struct inode *parent_dir,
2451 const struct dt_rec *dot_fid,
2452 const struct dt_rec *dot_dot_fid,
2453 struct osd_thandle *oth)
2455 struct ldiskfs_dentry_param *dot_ldp;
2456 struct ldiskfs_dentry_param *dot_dot_ldp;
2458 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
2459 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
2461 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
2462 dot_ldp->edp_magic = 0;
2463 return ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
2464 dir, dot_ldp, dot_dot_ldp);
2468 * Create an local agent inode for remote entry
2470 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
2471 struct osd_device *osd,
2472 struct osd_object *pobj,
2473 const struct lu_fid *fid,
2476 struct osd_thread_info *info = osd_oti_get(env);
2477 struct inode *local;
2478 struct osd_thandle *oh;
2483 oh = container_of(th, struct osd_thandle, ot_super);
2484 LASSERT(oh->ot_handle->h_transaction != NULL);
2486 /* FIXME: Insert index api needs to know the mode of
2487 * the remote object. Just use S_IFDIR for now */
2488 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, S_IFDIR);
2489 if (IS_ERR(local)) {
2490 CERROR("%s: create local error %d\n", osd_name(osd),
2491 (int)PTR_ERR(local));
2495 /* Set special LMA flag for local agent inode */
2496 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
2498 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
2499 osd_name(osd), PFID(fid), rc);
2500 RETURN(ERR_PTR(rc));
2503 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
2504 (const struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
2505 (const struct dt_rec *)fid, oh);
2507 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
2508 osd_name(osd), PFID(fid), rc);
2509 RETURN(ERR_PTR(rc));
2516 * Delete local agent inode for remote entry
2518 static int osd_delete_local_agent_inode(const struct lu_env *env,
2519 struct osd_device *osd,
2520 const struct lu_fid *fid,
2521 __u32 ino, struct osd_thandle *oh)
2523 struct osd_thread_info *oti = osd_oti_get(env);
2524 struct osd_inode_id *id = &oti->oti_id;
2525 struct inode *inode;
2528 id->oii_ino = le32_to_cpu(ino);
2529 id->oii_gen = OSD_OII_NOGEN;
2530 inode = osd_iget(oti, osd, id);
2531 if (IS_ERR(inode)) {
2532 CERROR("%s: iget error "DFID" id %u:%u\n", osd_name(osd),
2533 PFID(fid), id->oii_ino, id->oii_gen);
2534 RETURN(PTR_ERR(inode));
2538 mark_inode_dirty(inode);
2539 CDEBUG(D_INODE, "%s: delete remote inode "DFID" %lu\n",
2540 osd_name(osd), PFID(fid), inode->i_ino);
2546 * OSD layer object create function for interoperability mode (b11826).
2547 * This is mostly similar to osd_object_create(). Only difference being, fid is
2548 * inserted into inode ea here.
2550 * \retval 0, on success
2551 * \retval -ve, on error
2553 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
2554 struct lu_attr *attr,
2555 struct dt_allocation_hint *hint,
2556 struct dt_object_format *dof,
2559 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2560 struct osd_object *obj = osd_dt_obj(dt);
2561 struct osd_thread_info *info = osd_oti_get(env);
2566 LASSERT(osd_invariant(obj));
2567 LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
2568 LASSERT(osd_write_locked(env, obj));
2569 LASSERT(th != NULL);
2571 if (unlikely(fid_is_acct(fid)))
2572 /* Quota files can't be created from the kernel any more,
2573 * 'tune2fs -O quota' will take care of creating them */
2576 osd_trans_exec_op(env, th, OSD_OT_CREATE);
2577 osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
2579 result = __osd_object_create(info, obj, attr, hint, dof, th);
2581 result = osd_ea_fid_set(info, obj->oo_inode, fid,
2582 fid_is_on_ost(info, osd_obj2dev(obj),
2583 fid, OI_CHECK_FLD) ?
2584 LMAC_FID_ON_OST : 0, 0);
2587 result = __osd_oi_insert(env, obj, fid, th);
2589 LASSERT(ergo(result == 0,
2590 dt_object_exists(dt) && !dt_object_remote(dt)));
2591 LINVRNT(osd_invariant(obj));
2595 static int osd_declare_object_ref_add(const struct lu_env *env,
2596 struct dt_object *dt,
2597 struct thandle *handle)
2599 struct osd_thandle *oh;
2601 /* it's possible that object doesn't exist yet */
2602 LASSERT(handle != NULL);
2604 oh = container_of0(handle, struct osd_thandle, ot_super);
2605 LASSERT(oh->ot_handle == NULL);
2607 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
2608 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2614 * Concurrency: @dt is write locked.
2616 static int osd_object_ref_add(const struct lu_env *env,
2617 struct dt_object *dt, struct thandle *th)
2619 struct osd_object *obj = osd_dt_obj(dt);
2620 struct inode *inode = obj->oo_inode;
2621 bool need_dirty = false;
2624 LINVRNT(osd_invariant(obj));
2625 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2626 LASSERT(osd_write_locked(env, obj));
2627 LASSERT(th != NULL);
2629 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
2631 /* This based on ldiskfs_inc_count(), which is not exported.
2633 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
2634 * (65000) subdirectories by storing "1" in i_nlink if the link count
2635 * would otherwise overflow. Directory tranversal tools understand
2636 * that (st_nlink == 1) indicates that the filesystem dose not track
2637 * hard links count on the directory, and will not abort subdirectory
2638 * scanning early once (st_nlink - 2) subdirs have been found.
2640 * This also has to properly handle the case of inodes with nlink == 0
2641 * in case they are being linked into the PENDING directory
2643 spin_lock(&obj->oo_guard);
2644 if (unlikely(!S_ISDIR(inode->i_mode) &&
2645 inode->i_nlink >= LDISKFS_LINK_MAX)) {
2646 /* MDD should have checked this, but good to be safe */
2648 } else if (unlikely(inode->i_nlink == 0 ||
2649 (S_ISDIR(inode->i_mode) &&
2650 inode->i_nlink >= LDISKFS_LINK_MAX))) {
2651 /* inc_nlink from 0 may cause WARN_ON */
2652 set_nlink(inode, 1);
2654 } else if (!S_ISDIR(inode->i_mode) ||
2655 (S_ISDIR(inode->i_mode) && inode->i_nlink >= 2)) {
2658 } /* else (S_ISDIR(inode->i_mode) && inode->i_nlink == 1) { ; } */
2660 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
2661 spin_unlock(&obj->oo_guard);
2664 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2666 LINVRNT(osd_invariant(obj));
2671 static int osd_declare_object_ref_del(const struct lu_env *env,
2672 struct dt_object *dt,
2673 struct thandle *handle)
2675 struct osd_thandle *oh;
2677 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2678 LASSERT(handle != NULL);
2680 oh = container_of0(handle, struct osd_thandle, ot_super);
2681 LASSERT(oh->ot_handle == NULL);
2683 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
2684 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2690 * Concurrency: @dt is write locked.
2692 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2695 struct osd_object *obj = osd_dt_obj(dt);
2696 struct inode *inode = obj->oo_inode;
2697 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
2699 LINVRNT(osd_invariant(obj));
2700 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2701 LASSERT(osd_write_locked(env, obj));
2702 LASSERT(th != NULL);
2704 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
2706 spin_lock(&obj->oo_guard);
2707 /* That can be result of upgrade from old Lustre version and
2708 * applied only to local files. Just skip this ref_del call.
2709 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
2710 if (inode->i_nlink == 0) {
2711 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
2712 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
2713 ", maybe an upgraded file? (LU-3915)\n",
2714 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
2715 spin_unlock(&obj->oo_guard);
2719 /* This based on ldiskfs_dec_count(), which is not exported.
2721 * If a directory already has nlink == 1, then do not drop the nlink
2722 * count to 0, even temporarily, to avoid race conditions with other
2723 * threads not holding oo_guard seeing i_nlink == 0 in rare cases.
2725 * nlink == 1 means the directory has/had > EXT4_LINK_MAX subdirs.
2727 if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 1) {
2730 spin_unlock(&obj->oo_guard);
2731 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2732 LINVRNT(osd_invariant(obj));
2734 spin_unlock(&obj->oo_guard);
2741 * Get the 64-bit version for an inode.
2743 static int osd_object_version_get(const struct lu_env *env,
2744 struct dt_object *dt, dt_obj_version_t *ver)
2746 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2748 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2749 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2750 *ver = LDISKFS_I(inode)->i_fs_version;
2755 * Concurrency: @dt is read locked.
2757 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2758 struct lu_buf *buf, const char *name,
2759 struct lustre_capa *capa)
2761 struct osd_object *obj = osd_dt_obj(dt);
2762 struct inode *inode = obj->oo_inode;
2763 struct osd_thread_info *info = osd_oti_get(env);
2764 struct dentry *dentry = &info->oti_obj_dentry;
2766 /* version get is not real XATTR but uses xattr API */
2767 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2768 /* for version we are just using xattr API but change inode
2770 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2771 osd_object_version_get(env, dt, buf->lb_buf);
2772 return sizeof(dt_obj_version_t);
2775 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2776 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
2778 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2781 return __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
2785 static int osd_declare_xattr_set(const struct lu_env *env,
2786 struct dt_object *dt,
2787 const struct lu_buf *buf, const char *name,
2788 int fl, struct thandle *handle)
2790 struct osd_thandle *oh;
2792 LASSERT(handle != NULL);
2794 oh = container_of0(handle, struct osd_thandle, ot_super);
2795 LASSERT(oh->ot_handle == NULL);
2797 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2798 strcmp(name, XATTR_NAME_VERSION) == 0 ?
2799 osd_dto_credits_noquota[DTO_ATTR_SET_BASE] :
2800 osd_dto_credits_noquota[DTO_XATTR_SET]);
2806 * Set the 64-bit version for object
2808 static void osd_object_version_set(const struct lu_env *env,
2809 struct dt_object *dt,
2810 dt_obj_version_t *new_version)
2812 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2814 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
2815 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2817 LDISKFS_I(inode)->i_fs_version = *new_version;
2818 /** Version is set after all inode operations are finished,
2819 * so we should mark it dirty here */
2820 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2824 * Concurrency: @dt is write locked.
2826 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2827 const struct lu_buf *buf, const char *name, int fl,
2828 struct thandle *handle, struct lustre_capa *capa)
2830 struct osd_object *obj = osd_dt_obj(dt);
2831 struct inode *inode = obj->oo_inode;
2832 struct osd_thread_info *info = osd_oti_get(env);
2836 LASSERT(handle != NULL);
2838 /* version set is not real XATTR */
2839 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2840 /* for version we are just using xattr API but change inode
2842 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2843 osd_object_version_set(env, dt, buf->lb_buf);
2844 return sizeof(dt_obj_version_t);
2847 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2850 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
2851 if (fl & LU_XATTR_REPLACE)
2852 fs_flags |= XATTR_REPLACE;
2854 if (fl & LU_XATTR_CREATE)
2855 fs_flags |= XATTR_CREATE;
2857 return __osd_xattr_set(info, inode, name, buf->lb_buf, buf->lb_len,
2862 * Concurrency: @dt is read locked.
2864 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
2865 struct lu_buf *buf, struct lustre_capa *capa)
2867 struct osd_object *obj = osd_dt_obj(dt);
2868 struct inode *inode = obj->oo_inode;
2869 struct osd_thread_info *info = osd_oti_get(env);
2870 struct dentry *dentry = &info->oti_obj_dentry;
2872 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2873 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
2874 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
2876 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2879 dentry->d_inode = inode;
2880 dentry->d_sb = inode->i_sb;
2881 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
2884 static int osd_declare_xattr_del(const struct lu_env *env,
2885 struct dt_object *dt, const char *name,
2886 struct thandle *handle)
2888 struct osd_thandle *oh;
2890 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2891 LASSERT(handle != NULL);
2893 oh = container_of0(handle, struct osd_thandle, ot_super);
2894 LASSERT(oh->ot_handle == NULL);
2896 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2897 osd_dto_credits_noquota[DTO_XATTR_SET]);
2903 * Concurrency: @dt is write locked.
2905 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
2906 const char *name, struct thandle *handle,
2907 struct lustre_capa *capa)
2909 struct osd_object *obj = osd_dt_obj(dt);
2910 struct inode *inode = obj->oo_inode;
2911 struct osd_thread_info *info = osd_oti_get(env);
2912 struct dentry *dentry = &info->oti_obj_dentry;
2915 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2916 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
2917 LASSERT(handle != NULL);
2919 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2922 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
2924 ll_vfs_dq_init(inode);
2925 dentry->d_inode = inode;
2926 dentry->d_sb = inode->i_sb;
2927 rc = inode->i_op->removexattr(dentry, name);
2931 static struct obd_capa *osd_capa_get(const struct lu_env *env,
2932 struct dt_object *dt,
2933 struct lustre_capa *old, __u64 opc)
2935 struct osd_thread_info *info = osd_oti_get(env);
2936 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2937 struct osd_object *obj = osd_dt_obj(dt);
2938 struct osd_device *osd = osd_obj2dev(obj);
2939 struct lustre_capa_key *key = &info->oti_capa_key;
2940 struct lustre_capa *capa = &info->oti_capa;
2941 struct obd_capa *oc;
2942 struct lu_capainfo *lci;
2946 if (!osd->od_fl_capa)
2947 RETURN(ERR_PTR(-ENOENT));
2949 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
2950 LINVRNT(osd_invariant(obj));
2952 /* renewal sanity check */
2953 if (old && osd_object_auth(env, dt, old, opc))
2954 RETURN(ERR_PTR(-EACCES));
2956 lci = lu_capainfo_get(env);
2957 if (unlikely(lci == NULL))
2958 RETURN(ERR_PTR(-ENOENT));
2960 switch (lci->lci_auth) {
2964 capa->lc_uid = obj->oo_inode->i_uid;
2965 capa->lc_gid = obj->oo_inode->i_gid;
2966 capa->lc_flags = LC_ID_PLAIN;
2968 case LC_ID_CONVERT: {
2971 s[0] = obj->oo_inode->i_uid;
2972 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
2973 s[2] = obj->oo_inode->i_gid;
2974 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
2975 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
2977 RETURN(ERR_PTR(rc));
2979 capa->lc_uid = ((__u64)d[1] << 32) | d[0];
2980 capa->lc_gid = ((__u64)d[3] << 32) | d[2];
2981 capa->lc_flags = LC_ID_CONVERT;
2985 RETURN(ERR_PTR(-EINVAL));
2988 capa->lc_fid = *fid;
2990 capa->lc_flags |= osd->od_capa_alg << 24;
2991 capa->lc_timeout = osd->od_capa_timeout;
2992 capa->lc_expiry = 0;
2994 oc = capa_lookup(osd->od_capa_hash, capa, 1);
2996 LASSERT(!capa_is_expired(oc));
3000 spin_lock(&capa_lock);
3001 *key = osd->od_capa_keys[1];
3002 spin_unlock(&capa_lock);
3004 capa->lc_keyid = key->lk_keyid;
3005 capa->lc_expiry = cfs_time_current_sec() + osd->od_capa_timeout;
3007 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
3009 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
3010 RETURN(ERR_PTR(rc));
3013 oc = capa_add(osd->od_capa_hash, capa);
3017 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
3019 struct osd_object *obj = osd_dt_obj(dt);
3020 struct inode *inode = obj->oo_inode;
3021 struct osd_thread_info *info = osd_oti_get(env);
3022 struct dentry *dentry = &info->oti_obj_dentry;
3023 struct file *file = &info->oti_file;
3028 dentry->d_inode = inode;
3029 dentry->d_sb = inode->i_sb;
3030 file->f_dentry = dentry;
3031 file->f_mapping = inode->i_mapping;
3032 file->f_op = inode->i_fop;
3033 set_file_inode(file, inode);
3034 #ifndef HAVE_FILE_FSYNC_4ARGS
3035 mutex_lock(&inode->i_mutex);
3037 rc = do_fsync(file, 0);
3038 #ifndef HAVE_FILE_FSYNC_4ARGS
3039 mutex_unlock(&inode->i_mutex);
3044 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
3047 struct osd_object *obj = osd_dt_obj(dt);
3050 *data = (void *)obj->oo_inode;
3058 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
3059 const struct dt_index_features *feat)
3061 struct iam_descr *descr;
3063 if (osd_object_is_root(o))
3064 return feat == &dt_directory_features;
3066 LASSERT(o->oo_dir != NULL);
3068 descr = o->oo_dir->od_container.ic_descr;
3069 if (feat == &dt_directory_features) {
3070 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
3076 feat->dif_keysize_min <= descr->id_key_size &&
3077 descr->id_key_size <= feat->dif_keysize_max &&
3078 feat->dif_recsize_min <= descr->id_rec_size &&
3079 descr->id_rec_size <= feat->dif_recsize_max &&
3080 !(feat->dif_flags & (DT_IND_VARKEY |
3081 DT_IND_VARREC | DT_IND_NONUNQ)) &&
3082 ergo(feat->dif_flags & DT_IND_UPDATE,
3083 1 /* XXX check that object (and file system) is
3088 static int osd_iam_container_init(const struct lu_env *env,
3089 struct osd_object *obj,
3090 struct osd_directory *dir)
3092 struct iam_container *bag = &dir->od_container;
3095 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
3099 result = iam_container_setup(bag);
3101 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
3103 iam_container_fini(bag);
3110 * Concurrency: no external locking is necessary.
3112 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
3113 const struct dt_index_features *feat)
3117 struct osd_object *obj = osd_dt_obj(dt);
3119 LINVRNT(osd_invariant(obj));
3121 if (osd_object_is_root(obj)) {
3122 dt->do_index_ops = &osd_index_ea_ops;
3124 } else if (feat == &dt_directory_features) {
3125 dt->do_index_ops = &osd_index_ea_ops;
3126 if (obj->oo_inode != NULL && S_ISDIR(obj->oo_inode->i_mode))
3131 } else if (unlikely(feat == &dt_otable_features)) {
3132 dt->do_index_ops = &osd_otable_ops;
3134 } else if (unlikely(feat == &dt_acct_features)) {
3135 dt->do_index_ops = &osd_acct_index_ops;
3138 } else if (!osd_has_index(obj)) {
3139 struct osd_directory *dir;
3144 spin_lock(&obj->oo_guard);
3145 if (obj->oo_dir == NULL)
3149 * Concurrent thread allocated container data.
3152 spin_unlock(&obj->oo_guard);
3154 * Now, that we have container data, serialize its
3157 down_write(&obj->oo_ext_idx_sem);
3159 * recheck under lock.
3161 if (!osd_has_index(obj))
3162 result = osd_iam_container_init(env, obj, dir);
3165 up_write(&obj->oo_ext_idx_sem);
3173 if (result == 0 && skip_iam == 0) {
3174 if (!osd_iam_index_probe(env, obj, feat))
3177 LINVRNT(osd_invariant(obj));
3179 if (result == 0 && is_quota_glb_feat(feat) &&
3180 fid_seq(lu_object_fid(&dt->do_lu)) == FID_SEQ_QUOTA_GLB)
3181 result = osd_quota_migration(env, dt, feat);
3186 static int osd_otable_it_attr_get(const struct lu_env *env,
3187 struct dt_object *dt,
3188 struct lu_attr *attr,
3189 struct lustre_capa *capa)
3195 static const struct dt_object_operations osd_obj_ops = {
3196 .do_read_lock = osd_object_read_lock,
3197 .do_write_lock = osd_object_write_lock,
3198 .do_read_unlock = osd_object_read_unlock,
3199 .do_write_unlock = osd_object_write_unlock,
3200 .do_write_locked = osd_object_write_locked,
3201 .do_attr_get = osd_attr_get,
3202 .do_declare_attr_set = osd_declare_attr_set,
3203 .do_attr_set = osd_attr_set,
3204 .do_ah_init = osd_ah_init,
3205 .do_declare_create = osd_declare_object_create,
3206 .do_create = osd_object_create,
3207 .do_declare_destroy = osd_declare_object_destroy,
3208 .do_destroy = osd_object_destroy,
3209 .do_index_try = osd_index_try,
3210 .do_declare_ref_add = osd_declare_object_ref_add,
3211 .do_ref_add = osd_object_ref_add,
3212 .do_declare_ref_del = osd_declare_object_ref_del,
3213 .do_ref_del = osd_object_ref_del,
3214 .do_xattr_get = osd_xattr_get,
3215 .do_declare_xattr_set = osd_declare_xattr_set,
3216 .do_xattr_set = osd_xattr_set,
3217 .do_declare_xattr_del = osd_declare_xattr_del,
3218 .do_xattr_del = osd_xattr_del,
3219 .do_xattr_list = osd_xattr_list,
3220 .do_capa_get = osd_capa_get,
3221 .do_object_sync = osd_object_sync,
3222 .do_data_get = osd_data_get,
3226 * dt_object_operations for interoperability mode
3227 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
3229 static const struct dt_object_operations osd_obj_ea_ops = {
3230 .do_read_lock = osd_object_read_lock,
3231 .do_write_lock = osd_object_write_lock,
3232 .do_read_unlock = osd_object_read_unlock,
3233 .do_write_unlock = osd_object_write_unlock,
3234 .do_write_locked = osd_object_write_locked,
3235 .do_attr_get = osd_attr_get,
3236 .do_declare_attr_set = osd_declare_attr_set,
3237 .do_attr_set = osd_attr_set,
3238 .do_ah_init = osd_ah_init,
3239 .do_declare_create = osd_declare_object_create,
3240 .do_create = osd_object_ea_create,
3241 .do_declare_destroy = osd_declare_object_destroy,
3242 .do_destroy = osd_object_destroy,
3243 .do_index_try = osd_index_try,
3244 .do_declare_ref_add = osd_declare_object_ref_add,
3245 .do_ref_add = osd_object_ref_add,
3246 .do_declare_ref_del = osd_declare_object_ref_del,
3247 .do_ref_del = osd_object_ref_del,
3248 .do_xattr_get = osd_xattr_get,
3249 .do_declare_xattr_set = osd_declare_xattr_set,
3250 .do_xattr_set = osd_xattr_set,
3251 .do_declare_xattr_del = osd_declare_xattr_del,
3252 .do_xattr_del = osd_xattr_del,
3253 .do_xattr_list = osd_xattr_list,
3254 .do_capa_get = osd_capa_get,
3255 .do_object_sync = osd_object_sync,
3256 .do_data_get = osd_data_get,
3259 static const struct dt_object_operations osd_obj_otable_it_ops = {
3260 .do_attr_get = osd_otable_it_attr_get,
3261 .do_index_try = osd_index_try,
3264 static int osd_index_declare_iam_delete(const struct lu_env *env,
3265 struct dt_object *dt,
3266 const struct dt_key *key,
3267 struct thandle *handle)
3269 struct osd_thandle *oh;
3271 oh = container_of0(handle, struct osd_thandle, ot_super);
3272 LASSERT(oh->ot_handle == NULL);
3274 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3275 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3281 * delete a (key, value) pair from index \a dt specified by \a key
3283 * \param dt osd index object
3284 * \param key key for index
3285 * \param rec record reference
3286 * \param handle transaction handler
3289 * \retval -ve failure
3292 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
3293 const struct dt_key *key,
3294 struct thandle *handle,
3295 struct lustre_capa *capa)
3297 struct osd_thread_info *oti = osd_oti_get(env);
3298 struct osd_object *obj = osd_dt_obj(dt);
3299 struct osd_thandle *oh;
3300 struct iam_path_descr *ipd;
3301 struct iam_container *bag = &obj->oo_dir->od_container;
3306 LINVRNT(osd_invariant(obj));
3307 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3308 LASSERT(bag->ic_object == obj->oo_inode);
3309 LASSERT(handle != NULL);
3311 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3314 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3316 ipd = osd_idx_ipd_get(env, bag);
3317 if (unlikely(ipd == NULL))
3320 oh = container_of0(handle, struct osd_thandle, ot_super);
3321 LASSERT(oh->ot_handle != NULL);
3322 LASSERT(oh->ot_handle->h_transaction != NULL);
3324 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3325 /* swab quota uid/gid provided by caller */
3326 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3327 key = (const struct dt_key *)&oti->oti_quota_id;
3330 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
3331 osd_ipd_put(env, bag, ipd);
3332 LINVRNT(osd_invariant(obj));
3336 static int osd_index_declare_ea_delete(const struct lu_env *env,
3337 struct dt_object *dt,
3338 const struct dt_key *key,
3339 struct thandle *handle)
3341 struct osd_thandle *oh;
3342 struct inode *inode;
3346 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3347 LASSERT(handle != NULL);
3349 oh = container_of0(handle, struct osd_thandle, ot_super);
3350 LASSERT(oh->ot_handle == NULL);
3352 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3353 osd_dto_credits_noquota[DTO_INDEX_DELETE]);
3355 inode = osd_dt_obj(dt)->oo_inode;
3358 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
3359 true, true, NULL, false);
3363 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
3366 struct osd_fid_pack *rec;
3369 if (de->file_type & LDISKFS_DIRENT_LUFID) {
3370 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
3371 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
3376 static int osd_mdt_seq_exists(const struct lu_env *env,
3377 struct osd_device *osd, obd_seq seq)
3379 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
3380 struct seq_server_site *ss = osd_seq_site(osd);
3387 /* XXX: currently, each MDT only store avaible sequence on disk, and no
3388 * allocated sequences information on disk, so we have to lookup FLDB,
3389 * but it probably makes more sense also store allocated sequence
3390 * locally, so we do not need do remote FLDB lookup in OSD */
3391 rc = osd_fld_lookup(env, osd, seq, range);
3393 CERROR("%s: Can not lookup fld for "LPX64"\n",
3394 osd_name(osd), seq);
3398 RETURN(ss->ss_node_id == range->lsr_index);
3401 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
3406 /* FID seqs not in FLDB, must be local seq */
3407 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
3410 /* Currently only check this for FID on MDT */
3411 if (osd_mdt_seq_exists(env, osd, fid_seq(fid)))
3418 * Index delete function for interoperability mode (b11826).
3419 * It will remove the directory entry added by osd_index_ea_insert().
3420 * This entry is needed to maintain name->fid mapping.
3422 * \param key, key i.e. file entry to be deleted
3424 * \retval 0, on success
3425 * \retval -ve, on error
3427 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
3428 const struct dt_key *key,
3429 struct thandle *handle,
3430 struct lustre_capa *capa)
3432 struct osd_object *obj = osd_dt_obj(dt);
3433 struct inode *dir = obj->oo_inode;
3434 struct dentry *dentry;
3435 struct osd_thandle *oh;
3436 struct ldiskfs_dir_entry_2 *de = NULL;
3437 struct buffer_head *bh;
3438 struct htree_lock *hlock = NULL;
3439 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
3440 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3444 LINVRNT(osd_invariant(obj));
3445 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3446 LASSERT(handle != NULL);
3448 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3450 oh = container_of(handle, struct osd_thandle, ot_super);
3451 LASSERT(oh->ot_handle != NULL);
3452 LASSERT(oh->ot_handle->h_transaction != NULL);
3454 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3457 ll_vfs_dq_init(dir);
3458 dentry = osd_child_dentry_get(env, obj,
3459 (char *)key, strlen((char *)key));
3461 if (obj->oo_hl_head != NULL) {
3462 hlock = osd_oti_get(env)->oti_hlock;
3463 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3464 dir, LDISKFS_HLOCK_DEL);
3466 down_write(&obj->oo_ext_idx_sem);
3469 bh = ldiskfs_find_entry(dir, &dentry->d_name, &de, hlock);
3473 /* If this is not the ".." entry, it might be a remote DNE
3474 * entry and we need to check if the FID is for a remote
3475 * MDT. If the FID is not in the directory entry (e.g.
3476 * upgraded 1.8 filesystem without dirdata enabled) then
3477 * we need to get the FID from the LMA. For a remote directory
3478 * there HAS to be an LMA, it cannot be an IGIF inode in this
3481 * Delete the entry before the agent inode in order to
3482 * simplify error handling. At worst an error after deleting
3483 * the entry first might leak the agent inode afterward. The
3484 * reverse would need filesystem abort in case of error deleting
3485 * the entry after the agent had been removed, or leave a
3486 * dangling entry pointing at a random inode. */
3487 if (strcmp((char *)key, dotdot) != 0) {
3488 LASSERT(de != NULL);
3489 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
3490 /* If Fid is not in dentry, try to get it from LMA */
3491 if (rc == -ENODATA) {
3492 struct osd_inode_id *id;
3493 struct inode *inode;
3495 /* Before trying to get fid from the inode,
3496 * check whether the inode is valid.
3498 * If the inode has been deleted, do not go
3499 * ahead to do osd_ea_fid_get, which will set
3500 * the inode to bad inode, which might cause
3501 * the inode to be deleted uncorrectly */
3502 inode = ldiskfs_iget(osd_sb(osd),
3503 le32_to_cpu(de->inode));
3504 if (IS_ERR(inode)) {
3505 CDEBUG(D_INODE, "%s: "DFID"get inode"
3506 "error.\n", osd_name(osd),
3508 rc = PTR_ERR(inode);
3510 if (likely(inode->i_nlink != 0)) {
3511 id = &osd_oti_get(env)->oti_id;
3512 rc = osd_ea_fid_get(env, obj,
3513 le32_to_cpu(de->inode),
3516 CDEBUG(D_INFO, "%s: %u "DFID
3519 le32_to_cpu(de->inode),
3527 unlikely(osd_remote_fid(env, osd, fid)))
3528 /* Need to delete agent inode */
3529 ino = le32_to_cpu(de->inode);
3531 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
3533 if (rc == 0 && unlikely(ino != 0)) {
3534 rc = osd_delete_local_agent_inode(env, osd, fid, ino,
3537 CERROR("%s: del local inode "DFID": rc = %d\n",
3538 osd_name(osd), PFID(fid), rc);
3544 ldiskfs_htree_unlock(hlock);
3546 up_write(&obj->oo_ext_idx_sem);
3551 /* For inode on the remote MDT, .. will point to
3552 * /Agent directory, Check whether it needs to delete
3553 * from agent directory */
3554 if (unlikely(strcmp((char *)key, dotdot) == 0)) {
3555 rc = osd_delete_from_remote_parent(env, osd_obj2dev(obj), obj,
3557 if (rc != 0 && rc != -ENOENT) {
3558 CERROR("%s: delete agent inode "DFID": rc = %d\n",
3559 osd_name(osd), PFID(fid), rc);
3569 LASSERT(osd_invariant(obj));
3574 * Lookup index for \a key and copy record to \a rec.
3576 * \param dt osd index object
3577 * \param key key for index
3578 * \param rec record reference
3580 * \retval +ve success : exact mach
3581 * \retval 0 return record with key not greater than \a key
3582 * \retval -ve failure
3584 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
3585 struct dt_rec *rec, const struct dt_key *key,
3586 struct lustre_capa *capa)
3588 struct osd_object *obj = osd_dt_obj(dt);
3589 struct iam_path_descr *ipd;
3590 struct iam_container *bag = &obj->oo_dir->od_container;
3591 struct osd_thread_info *oti = osd_oti_get(env);
3592 struct iam_iterator *it = &oti->oti_idx_it;
3593 struct iam_rec *iam_rec;
3598 LASSERT(osd_invariant(obj));
3599 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3600 LASSERT(bag->ic_object == obj->oo_inode);
3602 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3605 ipd = osd_idx_ipd_get(env, bag);
3609 /* got ipd now we can start iterator. */
3610 iam_it_init(it, bag, 0, ipd);
3612 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3613 /* swab quota uid/gid provided by caller */
3614 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3615 key = (const struct dt_key *)&oti->oti_quota_id;
3618 rc = iam_it_get(it, (struct iam_key *)key);
3620 if (S_ISDIR(obj->oo_inode->i_mode))
3621 iam_rec = (struct iam_rec *)oti->oti_ldp;
3623 iam_rec = (struct iam_rec *) rec;
3625 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
3627 if (S_ISDIR(obj->oo_inode->i_mode))
3628 osd_fid_unpack((struct lu_fid *) rec,
3629 (struct osd_fid_pack *)iam_rec);
3630 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
3631 osd_quota_unpack(obj, rec);
3636 osd_ipd_put(env, bag, ipd);
3638 LINVRNT(osd_invariant(obj));
3643 static int osd_index_declare_iam_insert(const struct lu_env *env,
3644 struct dt_object *dt,
3645 const struct dt_rec *rec,
3646 const struct dt_key *key,
3647 struct thandle *handle)
3649 struct osd_thandle *oh;
3651 LASSERT(handle != NULL);
3653 oh = container_of0(handle, struct osd_thandle, ot_super);
3654 LASSERT(oh->ot_handle == NULL);
3656 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3657 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
3663 * Inserts (key, value) pair in \a dt index object.
3665 * \param dt osd index object
3666 * \param key key for index
3667 * \param rec record reference
3668 * \param th transaction handler
3671 * \retval -ve failure
3673 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
3674 const struct dt_rec *rec,
3675 const struct dt_key *key, struct thandle *th,
3676 struct lustre_capa *capa, int ignore_quota)
3678 struct osd_object *obj = osd_dt_obj(dt);
3679 struct iam_path_descr *ipd;
3680 struct osd_thandle *oh;
3681 struct iam_container *bag = &obj->oo_dir->od_container;
3682 struct osd_thread_info *oti = osd_oti_get(env);
3683 struct iam_rec *iam_rec;
3688 LINVRNT(osd_invariant(obj));
3689 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
3690 LASSERT(bag->ic_object == obj->oo_inode);
3691 LASSERT(th != NULL);
3693 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3696 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3698 ipd = osd_idx_ipd_get(env, bag);
3699 if (unlikely(ipd == NULL))
3702 oh = container_of0(th, struct osd_thandle, ot_super);
3703 LASSERT(oh->ot_handle != NULL);
3704 LASSERT(oh->ot_handle->h_transaction != NULL);
3705 if (S_ISDIR(obj->oo_inode->i_mode)) {
3706 iam_rec = (struct iam_rec *)oti->oti_ldp;
3707 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
3708 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3709 /* pack quota uid/gid */
3710 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3711 key = (const struct dt_key *)&oti->oti_quota_id;
3712 /* pack quota record */
3713 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
3714 iam_rec = (struct iam_rec *)rec;
3716 iam_rec = (struct iam_rec *)rec;
3719 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
3721 osd_ipd_put(env, bag, ipd);
3722 LINVRNT(osd_invariant(obj));
3727 * Calls ldiskfs_add_entry() to add directory entry
3728 * into the directory. This is required for
3729 * interoperability mode (b11826)
3731 * \retval 0, on success
3732 * \retval -ve, on error
3734 static int __osd_ea_add_rec(struct osd_thread_info *info,
3735 struct osd_object *pobj, struct inode *cinode,
3736 const char *name, const struct dt_rec *fid,
3737 struct htree_lock *hlock, struct thandle *th)
3739 struct ldiskfs_dentry_param *ldp;
3740 struct dentry *child;
3741 struct osd_thandle *oth;
3744 oth = container_of(th, struct osd_thandle, ot_super);
3745 LASSERT(oth->ot_handle != NULL);
3746 LASSERT(oth->ot_handle->h_transaction != NULL);
3747 LASSERT(pobj->oo_inode);
3749 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3750 if (unlikely(pobj->oo_inode ==
3751 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
3754 osd_get_ldiskfs_dirent_param(ldp, fid);
3755 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
3756 child->d_fsdata = (void *)ldp;
3757 ll_vfs_dq_init(pobj->oo_inode);
3758 rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
3764 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
3765 * into the directory.Also sets flags into osd object to
3766 * indicate dot and dotdot are created. This is required for
3767 * interoperability mode (b11826)
3769 * \param dir directory for dot and dotdot fixup.
3770 * \param obj child object for linking
3772 * \retval 0, on success
3773 * \retval -ve, on error
3775 static int osd_add_dot_dotdot(struct osd_thread_info *info,
3776 struct osd_object *dir,
3777 struct inode *parent_dir, const char *name,
3778 const struct dt_rec *dot_fid,
3779 const struct dt_rec *dot_dot_fid,
3782 struct inode *inode = dir->oo_inode;
3783 struct osd_thandle *oth;
3786 oth = container_of(th, struct osd_thandle, ot_super);
3787 LASSERT(oth->ot_handle->h_transaction != NULL);
3788 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
3790 if (strcmp(name, dot) == 0) {
3791 if (dir->oo_compat_dot_created) {
3794 LASSERT(inode == parent_dir);
3795 dir->oo_compat_dot_created = 1;
3798 } else if (strcmp(name, dotdot) == 0) {
3799 if (!dir->oo_compat_dot_created)
3801 /* in case of rename, dotdot is already created */
3802 if (dir->oo_compat_dotdot_created) {
3803 return __osd_ea_add_rec(info, dir, parent_dir, name,
3804 dot_dot_fid, NULL, th);
3807 result = osd_add_dot_dotdot_internal(info, dir->oo_inode,
3808 parent_dir, dot_fid,
3811 dir->oo_compat_dotdot_created = 1;
3819 * It will call the appropriate osd_add* function and return the
3820 * value, return by respective functions.
3822 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
3823 struct inode *cinode, const char *name,
3824 const struct dt_rec *fid, struct thandle *th)
3826 struct osd_thread_info *info = osd_oti_get(env);
3827 struct htree_lock *hlock;
3830 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
3832 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
3834 if (hlock != NULL) {
3835 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3838 down_write(&pobj->oo_ext_idx_sem);
3840 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
3841 (struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
3844 if (hlock != NULL) {
3845 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3846 pobj->oo_inode, LDISKFS_HLOCK_ADD);
3848 down_write(&pobj->oo_ext_idx_sem);
3851 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
3852 struct lu_fid *tfid = &info->oti_fid;
3854 *tfid = *(const struct lu_fid *)fid;
3856 rc = __osd_ea_add_rec(info, pobj, cinode, name,
3857 (const struct dt_rec *)tfid,
3860 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
3865 ldiskfs_htree_unlock(hlock);
3867 up_write(&pobj->oo_ext_idx_sem);
3873 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
3874 struct osd_idmap_cache *oic)
3876 struct osd_scrub *scrub = &dev->od_scrub;
3877 struct lu_fid *fid = &oic->oic_fid;
3878 struct osd_inode_id *id = &oti->oti_id;
3883 if (!fid_is_norm(fid) && !fid_is_igif(fid))
3887 rc = osd_oi_lookup(oti, dev, fid, id, OI_CHECK_FLD);
3888 if (rc != 0 && rc != -ENOENT)
3891 if (rc == 0 && osd_id_eq(id, &oic->oic_lid))
3894 if (thread_is_running(&scrub->os_thread)) {
3895 rc = osd_oii_insert(dev, oic, rc == -ENOENT);
3896 /* There is race condition between osd_oi_lookup and OI scrub.
3897 * The OI scrub finished just after osd_oi_lookup() failure.
3898 * Under such case, it is unnecessary to trigger OI scrub again,
3899 * but try to call osd_oi_lookup() again. */
3900 if (unlikely(rc == -EAGAIN))
3906 if (!dev->od_noscrub && ++once == 1) {
3907 CDEBUG(D_LFSCK, "Trigger OI scrub by RPC for "DFID"\n",
3909 rc = osd_scrub_start(dev);
3910 LCONSOLE_ERROR("%.16s: trigger OI scrub by RPC for "DFID
3912 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
3921 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
3922 struct osd_device *dev,
3923 struct osd_idmap_cache *oic,
3924 struct lu_fid *fid, __u32 ino)
3926 struct lustre_mdt_attrs *lma = &oti->oti_mdt_attrs;
3927 struct inode *inode;
3930 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
3931 inode = osd_iget(oti, dev, &oic->oic_lid);
3932 if (IS_ERR(inode)) {
3933 fid_zero(&oic->oic_fid);
3934 return PTR_ERR(inode);
3937 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, lma);
3940 fid_zero(&oic->oic_fid);
3942 *fid = oic->oic_fid = lma->lma_self_fid;
3946 int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
3947 struct osd_inode_id *id, const struct lu_fid *fid)
3949 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
3950 id->oii_ino, id->oii_gen, info);
3951 info->oti_cache.oic_lid = *id;
3952 info->oti_cache.oic_fid = *fid;
3953 info->oti_cache.oic_dev = osd;
3959 * Calls ->lookup() to find dentry. From dentry get inode and
3960 * read inode's ea to get fid. This is required for interoperability
3963 * \retval 0, on success
3964 * \retval -ve, on error
3966 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
3967 struct dt_rec *rec, const struct dt_key *key)
3969 struct inode *dir = obj->oo_inode;
3970 struct dentry *dentry;
3971 struct ldiskfs_dir_entry_2 *de;
3972 struct buffer_head *bh;
3973 struct lu_fid *fid = (struct lu_fid *) rec;
3974 struct htree_lock *hlock = NULL;
3979 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
3981 dentry = osd_child_dentry_get(env, obj,
3982 (char *)key, strlen((char *)key));
3984 if (obj->oo_hl_head != NULL) {
3985 hlock = osd_oti_get(env)->oti_hlock;
3986 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3987 dir, LDISKFS_HLOCK_LOOKUP);
3989 down_read(&obj->oo_ext_idx_sem);
3992 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
3994 struct osd_thread_info *oti = osd_oti_get(env);
3995 struct osd_inode_id *id = &oti->oti_id;
3996 struct osd_idmap_cache *oic = &oti->oti_cache;
3997 struct osd_device *dev = osd_obj2dev(obj);
3998 struct osd_scrub *scrub = &dev->od_scrub;
3999 struct scrub_file *sf = &scrub->os_file;
4001 ino = le32_to_cpu(de->inode);
4002 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
4004 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
4008 rc = osd_get_fid_from_dentry(de, rec);
4010 /* done with de, release bh */
4013 rc = osd_ea_fid_get(env, obj, ino, fid, id);
4015 osd_id_gen(id, ino, OSD_OII_NOGEN);
4017 fid_zero(&oic->oic_fid);
4021 rc = osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id,
4025 if ((scrub->os_pos_current <= ino) &&
4026 ((sf->sf_flags & SF_INCONSISTENT) ||
4027 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
4028 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
4030 osd_consistency_check(oti, dev, oic);
4039 ldiskfs_htree_unlock(hlock);
4041 up_read(&obj->oo_ext_idx_sem);
4046 * Find the osd object for given fid.
4048 * \param fid need to find the osd object having this fid
4050 * \retval osd_object on success
4051 * \retval -ve on error
4053 struct osd_object *osd_object_find(const struct lu_env *env,
4054 struct dt_object *dt,
4055 const struct lu_fid *fid)
4057 struct lu_device *ludev = dt->do_lu.lo_dev;
4058 struct osd_object *child = NULL;
4059 struct lu_object *luch;
4060 struct lu_object *lo;
4063 * at this point topdev might not exist yet
4064 * (i.e. MGS is preparing profiles). so we can
4065 * not rely on topdev and instead lookup with
4066 * our device passed as topdev. this can't work
4067 * if the object isn't cached yet (as osd doesn't
4068 * allocate lu_header). IOW, the object must be
4069 * in the cache, otherwise lu_object_alloc() crashes
4072 luch = lu_object_find_at(env, ludev, fid, NULL);
4073 if (!IS_ERR(luch)) {
4074 if (lu_object_exists(luch)) {
4075 lo = lu_object_locate(luch->lo_header, ludev->ld_type);
4077 child = osd_obj(lo);
4079 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4080 "lu_object can't be located"
4081 DFID"\n", PFID(fid));
4083 if (child == NULL) {
4084 lu_object_put(env, luch);
4085 CERROR("Unable to get osd_object\n");
4086 child = ERR_PTR(-ENOENT);
4089 LU_OBJECT_DEBUG(D_ERROR, env, luch,
4090 "lu_object does not exists "DFID"\n",
4092 lu_object_put(env, luch);
4093 child = ERR_PTR(-ENOENT);
4096 child = ERR_CAST(luch);
4103 * Put the osd object once done with it.
4105 * \param obj osd object that needs to be put
4107 static inline void osd_object_put(const struct lu_env *env,
4108 struct osd_object *obj)
4110 lu_object_put(env, &obj->oo_dt.do_lu);
4113 static int osd_index_declare_ea_insert(const struct lu_env *env,
4114 struct dt_object *dt,
4115 const struct dt_rec *rec,
4116 const struct dt_key *key,
4117 struct thandle *handle)
4119 struct osd_thandle *oh;
4120 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4121 struct lu_fid *fid = (struct lu_fid *)rec;
4125 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
4126 LASSERT(handle != NULL);
4128 oh = container_of0(handle, struct osd_thandle, ot_super);
4129 LASSERT(oh->ot_handle == NULL);
4131 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4132 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4134 if (osd_dt_obj(dt)->oo_inode == NULL) {
4135 const char *name = (const char *)key;
4136 /* Object is not being created yet. Only happens when
4137 * 1. declare directory create
4138 * 2. declare insert .
4139 * 3. declare insert ..
4141 LASSERT(strcmp(name, dotdot) == 0 || strcmp(name, dot) == 0);
4143 struct inode *inode = osd_dt_obj(dt)->oo_inode;
4145 /* We ignore block quota on meta pool (MDTs), so needn't
4146 * calculate how many blocks will be consumed by this index
4148 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0,
4149 oh, true, true, NULL, false);
4155 rc = osd_remote_fid(env, osd, fid);
4161 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
4162 osd_dto_credits_noquota[DTO_OBJECT_CREATE]);
4163 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4164 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4165 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4166 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
4172 * Index add function for interoperability mode (b11826).
4173 * It will add the directory entry.This entry is needed to
4174 * maintain name->fid mapping.
4176 * \param key it is key i.e. file entry to be inserted
4177 * \param rec it is value of given key i.e. fid
4179 * \retval 0, on success
4180 * \retval -ve, on error
4182 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
4183 const struct dt_rec *rec,
4184 const struct dt_key *key, struct thandle *th,
4185 struct lustre_capa *capa, int ignore_quota)
4187 struct osd_object *obj = osd_dt_obj(dt);
4188 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4189 struct lu_fid *fid = (struct lu_fid *) rec;
4190 const char *name = (const char *)key;
4191 struct osd_thread_info *oti = osd_oti_get(env);
4192 struct osd_inode_id *id = &oti->oti_id;
4193 struct inode *child_inode = NULL;
4194 struct osd_object *child = NULL;
4198 LASSERT(osd_invariant(obj));
4199 LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
4200 LASSERT(th != NULL);
4202 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4204 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
4207 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!", PFID(fid));
4209 rc = osd_remote_fid(env, osd, fid);
4211 CERROR("%s: Can not find object "DFID" rc %d\n",
4212 osd_name(osd), PFID(fid), rc);
4217 /* Insert remote entry */
4218 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
4219 struct osd_mdobj_map *omm = osd->od_mdt_map;
4220 struct osd_thandle *oh;
4222 /* If parent on remote MDT, we need put this object
4224 oh = container_of(th, typeof(*oh), ot_super);
4225 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4227 CERROR("%s: add "DFID" error: rc = %d\n",
4229 PFID(lu_object_fid(&dt->do_lu)), rc);
4233 child_inode = igrab(omm->omm_remote_parent->d_inode);
4235 child_inode = osd_create_local_agent_inode(env, osd,
4238 if (IS_ERR(child_inode))
4239 RETURN(PTR_ERR(child_inode));
4242 /* Insert local entry */
4243 child = osd_object_find(env, dt, fid);
4244 if (IS_ERR(child)) {
4245 CERROR("%s: Can not find object "DFID"%u:%u: rc = %d\n",
4246 osd_name(osd), PFID(fid),
4247 id->oii_ino, id->oii_gen,
4248 (int)PTR_ERR(child));
4249 RETURN(PTR_ERR(child));
4251 child_inode = igrab(child->oo_inode);
4254 rc = osd_ea_add_rec(env, obj, child_inode, name, rec, th);
4258 osd_object_put(env, child);
4259 LASSERT(osd_invariant(obj));
4264 * Initialize osd Iterator for given osd index object.
4266 * \param dt osd index object
4269 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
4270 struct dt_object *dt,
4272 struct lustre_capa *capa)
4274 struct osd_it_iam *it;
4275 struct osd_thread_info *oti = osd_oti_get(env);
4276 struct osd_object *obj = osd_dt_obj(dt);
4277 struct lu_object *lo = &dt->do_lu;
4278 struct iam_path_descr *ipd;
4279 struct iam_container *bag = &obj->oo_dir->od_container;
4281 LASSERT(lu_object_exists(lo));
4283 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
4284 return ERR_PTR(-EACCES);
4287 ipd = osd_it_ipd_get(env, bag);
4288 if (likely(ipd != NULL)) {
4292 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
4293 return (struct dt_it *)it;
4295 return ERR_PTR(-ENOMEM);
4299 * free given Iterator.
4302 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
4304 struct osd_it_iam *it = (struct osd_it_iam *)di;
4305 struct osd_object *obj = it->oi_obj;
4307 iam_it_fini(&it->oi_it);
4308 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
4309 lu_object_put(env, &obj->oo_dt.do_lu);
4313 * Move Iterator to record specified by \a key
4315 * \param di osd iterator
4316 * \param key key for index
4318 * \retval +ve di points to record with least key not larger than key
4319 * \retval 0 di points to exact matched key
4320 * \retval -ve failure
4323 static int osd_it_iam_get(const struct lu_env *env,
4324 struct dt_it *di, const struct dt_key *key)
4326 struct osd_thread_info *oti = osd_oti_get(env);
4327 struct osd_it_iam *it = (struct osd_it_iam *)di;
4329 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4330 /* swab quota uid/gid */
4331 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4332 key = (struct dt_key *)&oti->oti_quota_id;
4335 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
4341 * \param di osd iterator
4343 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
4345 struct osd_it_iam *it = (struct osd_it_iam *)di;
4347 iam_it_put(&it->oi_it);
4351 * Move iterator by one record
4353 * \param di osd iterator
4355 * \retval +1 end of container reached
4357 * \retval -ve failure
4360 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
4362 struct osd_it_iam *it = (struct osd_it_iam *)di;
4364 return iam_it_next(&it->oi_it);
4368 * Return pointer to the key under iterator.
4371 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
4372 const struct dt_it *di)
4374 struct osd_thread_info *oti = osd_oti_get(env);
4375 struct osd_it_iam *it = (struct osd_it_iam *)di;
4376 struct osd_object *obj = it->oi_obj;
4379 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
4381 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
4382 /* swab quota uid/gid */
4383 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
4384 key = (struct dt_key *)&oti->oti_quota_id;
4391 * Return size of key under iterator (in bytes)
4394 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
4396 struct osd_it_iam *it = (struct osd_it_iam *)di;
4398 return iam_it_key_size(&it->oi_it);
4402 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
4404 /* check if file type is required */
4405 if (ent->lde_attrs & LUDA_TYPE) {
4406 struct luda_type *lt;
4407 int align = sizeof(*lt) - 1;
4409 len = (len + align) & ~align;
4410 lt = (struct luda_type *)(ent->lde_name + len);
4411 lt->lt_type = cpu_to_le16(DTTOIF(type));
4414 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
4418 * build lu direct from backend fs dirent.
4422 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
4423 char *name, __u16 namelen, __u16 type, __u32 attr)
4425 ent->lde_attrs = attr | LUDA_FID;
4426 fid_cpu_to_le(&ent->lde_fid, fid);
4428 ent->lde_hash = cpu_to_le64(offset);
4429 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
4431 strncpy(ent->lde_name, name, namelen);
4432 ent->lde_name[namelen] = '\0';
4433 ent->lde_namelen = cpu_to_le16(namelen);
4435 /* append lustre attributes */
4436 osd_it_append_attrs(ent, namelen, type);
4440 * Return pointer to the record under iterator.
4442 static int osd_it_iam_rec(const struct lu_env *env,
4443 const struct dt_it *di,
4444 struct dt_rec *dtrec, __u32 attr)
4446 struct osd_it_iam *it = (struct osd_it_iam *)di;
4447 struct osd_thread_info *info = osd_oti_get(env);
4450 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
4451 const struct osd_fid_pack *rec;
4452 struct lu_fid *fid = &info->oti_fid;
4453 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
4459 name = (char *)iam_it_key_get(&it->oi_it);
4461 RETURN(PTR_ERR(name));
4463 namelen = iam_it_key_size(&it->oi_it);
4465 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
4467 RETURN(PTR_ERR(rec));
4469 rc = osd_fid_unpack(fid, rec);
4473 hash = iam_it_store(&it->oi_it);
4475 /* IAM does not store object type in IAM index (dir) */
4476 osd_it_pack_dirent(lde, fid, hash, name, namelen,
4478 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4479 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4480 (struct iam_rec *)dtrec);
4481 osd_quota_unpack(it->oi_obj, dtrec);
4483 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
4484 (struct iam_rec *)dtrec);
4491 * Returns cookie for current Iterator position.
4493 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
4495 struct osd_it_iam *it = (struct osd_it_iam *)di;
4497 return iam_it_store(&it->oi_it);
4501 * Restore iterator from cookie.
4503 * \param di osd iterator
4504 * \param hash Iterator location cookie
4506 * \retval +ve di points to record with least key not larger than key.
4507 * \retval 0 di points to exact matched key
4508 * \retval -ve failure
4511 static int osd_it_iam_load(const struct lu_env *env,
4512 const struct dt_it *di, __u64 hash)
4514 struct osd_it_iam *it = (struct osd_it_iam *)di;
4516 return iam_it_load(&it->oi_it, hash);
4519 static const struct dt_index_operations osd_index_iam_ops = {
4520 .dio_lookup = osd_index_iam_lookup,
4521 .dio_declare_insert = osd_index_declare_iam_insert,
4522 .dio_insert = osd_index_iam_insert,
4523 .dio_declare_delete = osd_index_declare_iam_delete,
4524 .dio_delete = osd_index_iam_delete,
4526 .init = osd_it_iam_init,
4527 .fini = osd_it_iam_fini,
4528 .get = osd_it_iam_get,
4529 .put = osd_it_iam_put,
4530 .next = osd_it_iam_next,
4531 .key = osd_it_iam_key,
4532 .key_size = osd_it_iam_key_size,
4533 .rec = osd_it_iam_rec,
4534 .store = osd_it_iam_store,
4535 .load = osd_it_iam_load
4541 * Creates or initializes iterator context.
4543 * \retval struct osd_it_ea, iterator structure on success
4546 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
4547 struct dt_object *dt,
4549 struct lustre_capa *capa)
4551 struct osd_object *obj = osd_dt_obj(dt);
4552 struct osd_thread_info *info = osd_oti_get(env);
4553 struct osd_it_ea *it = &info->oti_it_ea;
4554 struct file *file = &it->oie_file;
4555 struct lu_object *lo = &dt->do_lu;
4556 struct dentry *obj_dentry = &info->oti_it_dentry;
4558 LASSERT(lu_object_exists(lo));
4560 obj_dentry->d_inode = obj->oo_inode;
4561 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
4562 obj_dentry->d_name.hash = 0;
4564 it->oie_rd_dirent = 0;
4565 it->oie_it_dirent = 0;
4566 it->oie_dirent = NULL;
4567 it->oie_buf = info->oti_it_ea_buf;
4570 /* Reset the "file" totally to avoid to reuse any old value from
4571 * former readdir handling, the "file->f_pos" should be zero. */
4572 memset(file, 0, sizeof(*file));
4573 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
4574 if (attr & LUDA_64BITHASH)
4575 file->f_mode = FMODE_64BITHASH;
4577 file->f_mode = FMODE_32BITHASH;
4578 file->f_dentry = obj_dentry;
4579 file->f_mapping = obj->oo_inode->i_mapping;
4580 file->f_op = obj->oo_inode->i_fop;
4581 set_file_inode(file, obj->oo_inode);
4584 RETURN((struct dt_it *) it);
4588 * Destroy or finishes iterator context.
4590 * \param di iterator structure to be destroyed
4592 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
4594 struct osd_it_ea *it = (struct osd_it_ea *)di;
4595 struct osd_object *obj = it->oie_obj;
4596 struct inode *inode = obj->oo_inode;
4599 it->oie_file.f_op->release(inode, &it->oie_file);
4600 lu_object_put(env, &obj->oo_dt.do_lu);
4605 * It position the iterator at given key, so that next lookup continues from
4606 * that key Or it is similar to dio_it->load() but based on a key,
4607 * rather than file position.
4609 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
4612 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
4614 static int osd_it_ea_get(const struct lu_env *env,
4615 struct dt_it *di, const struct dt_key *key)
4617 struct osd_it_ea *it = (struct osd_it_ea *)di;
4620 LASSERT(((const char *)key)[0] == '\0');
4621 it->oie_file.f_pos = 0;
4622 it->oie_rd_dirent = 0;
4623 it->oie_it_dirent = 0;
4624 it->oie_dirent = NULL;
4632 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
4637 * It is called internally by ->readdir(). It fills the
4638 * iterator's in-memory data structure with required
4639 * information i.e. name, namelen, rec_size etc.
4641 * \param buf in which information to be filled in.
4642 * \param name name of the file in given dir
4644 * \retval 0 on success
4645 * \retval 1 on buffer full
4647 static int osd_ldiskfs_filldir(char *buf, const char *name, int namelen,
4648 loff_t offset, __u64 ino,
4651 struct osd_it_ea *it = (struct osd_it_ea *)buf;
4652 struct osd_object *obj = it->oie_obj;
4653 struct osd_it_ea_dirent *ent = it->oie_dirent;
4654 struct lu_fid *fid = &ent->oied_fid;
4655 struct osd_fid_pack *rec;
4658 /* this should never happen */
4659 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
4660 CERROR("ldiskfs return invalid namelen %d\n", namelen);
4664 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
4668 /* "." is just the object itself. */
4669 if (namelen == 1 && name[0] == '.') {
4670 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
4671 } else if (d_type & LDISKFS_DIRENT_LUFID) {
4672 rec = (struct osd_fid_pack*) (name + namelen + 1);
4673 if (osd_fid_unpack(fid, rec) != 0)
4678 d_type &= ~LDISKFS_DIRENT_LUFID;
4680 /* NOT export local root. */
4681 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
4682 ino = obj->oo_inode->i_ino;
4683 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
4686 ent->oied_ino = ino;
4687 ent->oied_off = offset;
4688 ent->oied_namelen = namelen;
4689 ent->oied_type = d_type;
4691 memcpy(ent->oied_name, name, namelen);
4693 it->oie_rd_dirent++;
4694 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
4699 * Calls ->readdir() to load a directory entry at a time
4700 * and stored it in iterator's in-memory data structure.
4702 * \param di iterator's in memory structure
4704 * \retval 0 on success
4705 * \retval -ve on error
4707 static int osd_ldiskfs_it_fill(const struct lu_env *env,
4708 const struct dt_it *di)
4710 struct osd_it_ea *it = (struct osd_it_ea *)di;
4711 struct osd_object *obj = it->oie_obj;
4712 struct inode *inode = obj->oo_inode;
4713 struct htree_lock *hlock = NULL;
4717 it->oie_dirent = it->oie_buf;
4718 it->oie_rd_dirent = 0;
4720 if (obj->oo_hl_head != NULL) {
4721 hlock = osd_oti_get(env)->oti_hlock;
4722 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4723 inode, LDISKFS_HLOCK_READDIR);
4725 down_read(&obj->oo_ext_idx_sem);
4728 result = inode->i_fop->readdir(&it->oie_file, it,
4729 (filldir_t) osd_ldiskfs_filldir);
4732 ldiskfs_htree_unlock(hlock);
4734 up_read(&obj->oo_ext_idx_sem);
4736 if (it->oie_rd_dirent == 0) {
4739 it->oie_dirent = it->oie_buf;
4740 it->oie_it_dirent = 1;
4747 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
4748 * to load a directory entry at a time and stored it in
4749 * iterator's in-memory data structure.
4751 * \param di iterator's in memory structure
4753 * \retval +ve iterator reached to end
4754 * \retval 0 iterator not reached to end
4755 * \retval -ve on error
4757 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
4759 struct osd_it_ea *it = (struct osd_it_ea *)di;
4764 if (it->oie_it_dirent < it->oie_rd_dirent) {
4766 (void *) it->oie_dirent +
4767 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
4768 it->oie_dirent->oied_namelen);
4769 it->oie_it_dirent++;
4772 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
4775 rc = osd_ldiskfs_it_fill(env, di);
4782 * Returns the key at current position from iterator's in memory structure.
4784 * \param di iterator's in memory structure
4786 * \retval key i.e. struct dt_key on success
4788 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
4789 const struct dt_it *di)
4791 struct osd_it_ea *it = (struct osd_it_ea *)di;
4793 return (struct dt_key *)it->oie_dirent->oied_name;
4797 * Returns the key's size at current position from iterator's in memory structure.
4799 * \param di iterator's in memory structure
4801 * \retval key_size i.e. struct dt_key on success
4803 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
4805 struct osd_it_ea *it = (struct osd_it_ea *)di;
4807 return it->oie_dirent->oied_namelen;
4811 osd_dirent_update(handle_t *jh, struct super_block *sb,
4812 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
4813 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de)
4815 struct osd_fid_pack *rec;
4819 LASSERT(de->file_type & LDISKFS_DIRENT_LUFID);
4820 LASSERT(de->rec_len >= de->name_len + sizeof(struct osd_fid_pack));
4822 rc = ldiskfs_journal_get_write_access(jh, bh);
4824 CERROR("%.16s: fail to write access for update dirent: "
4825 "name = %.*s, rc = %d\n",
4826 LDISKFS_SB(sb)->s_es->s_volume_name,
4827 ent->oied_namelen, ent->oied_name, rc);
4831 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
4832 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
4833 rc = ldiskfs_journal_dirty_metadata(jh, bh);
4835 CERROR("%.16s: fail to dirty metadata for update dirent: "
4836 "name = %.*s, rc = %d\n",
4837 LDISKFS_SB(sb)->s_es->s_volume_name,
4838 ent->oied_namelen, ent->oied_name, rc);
4844 osd_dirent_has_space(__u16 reclen, __u16 namelen, unsigned blocksize)
4846 if (ldiskfs_rec_len_from_disk(reclen, blocksize) >=
4847 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
4854 osd_dot_dotdot_has_space(struct ldiskfs_dir_entry_2 *de, int dot_dotdot)
4856 LASSERTF(dot_dotdot == 1 || dot_dotdot == 2,
4857 "dot_dotdot = %d\n", dot_dotdot);
4859 if (LDISKFS_DIR_REC_LEN(de) >=
4860 __LDISKFS_DIR_REC_LEN(dot_dotdot + 1 + sizeof(struct osd_fid_pack)))
4867 osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
4868 struct inode *dir, struct inode *inode,
4869 struct osd_it_ea_dirent *ent, struct lu_fid *fid,
4870 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de,
4871 struct htree_lock *hlock)
4873 struct dentry *dentry;
4874 struct osd_fid_pack *rec;
4875 struct ldiskfs_dentry_param *ldp;
4879 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
4880 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
4883 /* There is enough space to hold the FID-in-dirent. */
4884 if (osd_dirent_has_space(de->rec_len, ent->oied_namelen,
4885 dir->i_sb->s_blocksize)) {
4886 rc = ldiskfs_journal_get_write_access(jh, bh);
4888 CERROR("%.16s: fail to write access for reinsert "
4889 "dirent: name = %.*s, rc = %d\n",
4890 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
4891 ent->oied_namelen, ent->oied_name, rc);
4895 de->name[de->name_len] = 0;
4896 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
4897 rec->fp_len = sizeof(struct lu_fid) + 1;
4898 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
4899 de->file_type |= LDISKFS_DIRENT_LUFID;
4901 rc = ldiskfs_journal_dirty_metadata(jh, bh);
4903 CERROR("%.16s: fail to dirty metadata for reinsert "
4904 "dirent: name = %.*s, rc = %d\n",
4905 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
4906 ent->oied_namelen, ent->oied_name, rc);
4911 rc = ldiskfs_delete_entry(jh, dir, de, bh);
4913 CERROR("%.16s: fail to delete entry for reinsert dirent: "
4914 "name = %.*s, rc = %d\n",
4915 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
4916 ent->oied_namelen, ent->oied_name, rc);
4920 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
4922 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
4923 osd_get_ldiskfs_dirent_param(ldp, (const struct dt_rec *)fid);
4924 dentry->d_fsdata = (void *)ldp;
4925 ll_vfs_dq_init(dir);
4926 rc = osd_ldiskfs_add_entry(jh, dentry, inode, hlock);
4927 /* It is too bad, we cannot reinsert the name entry back.
4928 * That means we lose it! */
4930 CERROR("%.16s: fail to insert entry for reinsert dirent: "
4931 "name = %.*s, rc = %d\n",
4932 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
4933 ent->oied_namelen, ent->oied_name, rc);
4939 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
4940 struct osd_it_ea *it, struct lu_fid *fid,
4941 struct osd_inode_id *id, __u32 *attr)
4943 struct osd_thread_info *info = osd_oti_get(env);
4944 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
4945 struct osd_device *dev = osd_obj2dev(obj);
4946 struct super_block *sb = osd_sb(dev);
4947 const char *devname =
4948 LDISKFS_SB(sb)->s_es->s_volume_name;
4949 struct osd_it_ea_dirent *ent = it->oie_dirent;
4950 struct inode *dir = obj->oo_inode;
4951 struct htree_lock *hlock = NULL;
4952 struct buffer_head *bh = NULL;
4953 handle_t *jh = NULL;
4954 struct ldiskfs_dir_entry_2 *de;
4955 struct dentry *dentry;
4956 struct inode *inode;
4963 if (ent->oied_name[0] == '.') {
4964 if (ent->oied_namelen == 1)
4966 else if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
4970 dentry = osd_child_dentry_get(env, obj, ent->oied_name,
4973 /* We need to ensure that the name entry is still valid.
4974 * Because it may be removed or renamed by other already.
4976 * The unlink or rename operation will start journal before PDO lock,
4977 * so to avoid deadlock, here we need to start journal handle before
4978 * related PDO lock also. But because we do not know whether there
4979 * will be something to be repaired before PDO lock, we just start
4980 * journal without conditions.
4982 * We may need to remove the name entry firstly, then insert back.
4983 * One credit is for user quota file update.
4984 * One credit is for group quota file update.
4985 * Two credits are for dirty inode. */
4986 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
4987 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
4990 if (dev->od_dirent_journal) {
4991 jh = ldiskfs_journal_start_sb(sb, credits);
4994 CERROR("%.16s: fail to start trans for dirent "
4995 "check_repair: credits %d, name %.*s, rc %d\n",
4996 devname, credits, ent->oied_namelen,
4997 ent->oied_name, rc);
5001 if (obj->oo_hl_head != NULL) {
5002 hlock = osd_oti_get(env)->oti_hlock;
5003 /* "0" means exclusive lock for the whole directory.
5004 * We need to prevent others access such name entry
5005 * during the delete + insert. Neither HLOCK_ADD nor
5006 * HLOCK_DEL cannot guarantee the atomicity. */
5007 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
5009 down_write(&obj->oo_ext_idx_sem);
5012 if (obj->oo_hl_head != NULL) {
5013 hlock = osd_oti_get(env)->oti_hlock;
5014 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
5015 LDISKFS_HLOCK_LOOKUP);
5017 down_read(&obj->oo_ext_idx_sem);
5021 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
5022 /* For dot/dotdot entry, if there is not enough space to hold the
5023 * FID-in-dirent, just keep them there. It only happens when the
5024 * device upgraded from 1.8 or restored from MDT file-level backup.
5025 * For the whole directory, only dot/dotdot entry have no FID-in-dirent
5026 * and needs to get FID from LMA when readdir, it will not affect the
5027 * performance much. */
5028 if ((bh == NULL) || (le32_to_cpu(de->inode) != ent->oied_ino) ||
5029 (dot_dotdot != 0 && !osd_dot_dotdot_has_space(de, dot_dotdot))) {
5030 *attr |= LUDA_IGNORE;
5031 GOTO(out_journal, rc = 0);
5034 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
5035 inode = osd_iget(info, dev, id);
5036 if (IS_ERR(inode)) {
5037 rc = PTR_ERR(inode);
5038 if (rc == -ENOENT || rc == -ESTALE) {
5039 *attr |= LUDA_IGNORE;
5043 GOTO(out_journal, rc);
5046 /* skip the REMOTE_PARENT_DIR. */
5047 if (inode == dev->od_mdt_map->omm_remote_parent->d_inode)
5048 GOTO(out_inode, rc = 0);
5050 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
5052 LASSERT(!(lma->lma_compat & LMAC_NOT_IN_OI));
5054 if (fid_is_sane(fid)) {
5055 /* FID-in-dirent is valid. */
5056 if (lu_fid_eq(fid, &lma->lma_self_fid))
5057 GOTO(out_inode, rc = 0);
5059 /* Do not repair under dryrun mode. */
5060 if (*attr & LUDA_VERIFY_DRYRUN) {
5061 *attr |= LUDA_REPAIR;
5062 GOTO(out_inode, rc = 0);
5065 if (!dev->od_dirent_journal) {
5069 ldiskfs_htree_unlock(hlock);
5071 up_read(&obj->oo_ext_idx_sem);
5072 dev->od_dirent_journal = 1;
5076 *fid = lma->lma_self_fid;
5078 /* Update the FID-in-dirent. */
5079 rc = osd_dirent_update(jh, sb, ent, fid, bh, de);
5081 *attr |= LUDA_REPAIR;
5083 /* Do not repair under dryrun mode. */
5084 if (*attr & LUDA_VERIFY_DRYRUN) {
5085 *fid = lma->lma_self_fid;
5086 *attr |= LUDA_REPAIR;
5087 GOTO(out_inode, rc = 0);
5090 if (!dev->od_dirent_journal) {
5094 ldiskfs_htree_unlock(hlock);
5096 up_read(&obj->oo_ext_idx_sem);
5097 dev->od_dirent_journal = 1;
5101 *fid = lma->lma_self_fid;
5103 /* Append the FID-in-dirent. */
5104 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5105 fid, bh, de, hlock);
5107 *attr |= LUDA_REPAIR;
5109 } else if (rc == -ENODATA) {
5110 /* Do not repair under dryrun mode. */
5111 if (*attr & LUDA_VERIFY_DRYRUN) {
5112 if (fid_is_sane(fid)) {
5113 *attr |= LUDA_REPAIR;
5115 lu_igif_build(fid, inode->i_ino,
5116 inode->i_generation);
5117 *attr |= LUDA_UPGRADE;
5119 GOTO(out_inode, rc = 0);
5122 if (!dev->od_dirent_journal) {
5126 ldiskfs_htree_unlock(hlock);
5128 up_read(&obj->oo_ext_idx_sem);
5129 dev->od_dirent_journal = 1;
5134 if (unlikely(fid_is_sane(fid))) {
5135 /* FID-in-dirent exists, but FID-in-LMA is lost.
5136 * Trust the FID-in-dirent, and add FID-in-LMA. */
5137 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
5139 *attr |= LUDA_REPAIR;
5141 lu_igif_build(fid, inode->i_ino, inode->i_generation);
5142 /* It is probably IGIF object. Only aappend the
5143 * FID-in-dirent. OI scrub will process FID-in-LMA. */
5144 rc = osd_dirent_reinsert(env, jh, dir, inode, ent,
5145 fid, bh, de, hlock);
5147 *attr |= LUDA_UPGRADE;
5151 GOTO(out_inode, rc);
5158 if (hlock != NULL) {
5159 ldiskfs_htree_unlock(hlock);
5161 if (dev->od_dirent_journal)
5162 up_write(&obj->oo_ext_idx_sem);
5164 up_read(&obj->oo_ext_idx_sem);
5167 ldiskfs_journal_stop(jh);
5168 if (rc >= 0 && !dirty)
5169 dev->od_dirent_journal = 0;
5174 * Returns the value at current position from iterator's in memory structure.
5176 * \param di struct osd_it_ea, iterator's in memory structure
5177 * \param attr attr requested for dirent.
5178 * \param lde lustre dirent
5180 * \retval 0 no error and \param lde has correct lustre dirent.
5181 * \retval -ve on error
5183 static inline int osd_it_ea_rec(const struct lu_env *env,
5184 const struct dt_it *di,
5185 struct dt_rec *dtrec, __u32 attr)
5187 struct osd_it_ea *it = (struct osd_it_ea *)di;
5188 struct osd_object *obj = it->oie_obj;
5189 struct osd_device *dev = osd_obj2dev(obj);
5190 struct osd_scrub *scrub = &dev->od_scrub;
5191 struct scrub_file *sf = &scrub->os_file;
5192 struct osd_thread_info *oti = osd_oti_get(env);
5193 struct osd_inode_id *id = &oti->oti_id;
5194 struct osd_idmap_cache *oic = &oti->oti_cache;
5195 struct lu_fid *fid = &it->oie_dirent->oied_fid;
5196 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5197 __u32 ino = it->oie_dirent->oied_ino;
5201 if (attr & LUDA_VERIFY) {
5203 if (unlikely(ino == osd_sb(dev)->s_root->d_inode->i_ino)) {
5204 attr |= LUDA_IGNORE;
5207 rc = osd_dirent_check_repair(env, obj, it, fid, id,
5211 attr &= ~LU_DIRENT_ATTRS_MASK;
5212 if (!fid_is_sane(fid)) {
5213 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
5216 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5218 osd_id_gen(id, ino, OSD_OII_NOGEN);
5222 /* Pack the entry anyway, at least the offset is right. */
5223 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
5224 it->oie_dirent->oied_name,
5225 it->oie_dirent->oied_namelen,
5226 it->oie_dirent->oied_type, attr);
5231 if (osd_remote_fid(env, dev, fid))
5234 if (likely(!(attr & LUDA_IGNORE)))
5235 rc = osd_add_oi_cache(oti, dev, id, fid);
5237 if (!(attr & LUDA_VERIFY) &&
5238 (scrub->os_pos_current <= ino) &&
5239 ((sf->sf_flags & SF_INCONSISTENT) ||
5240 (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
5241 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid), sf->sf_oi_bitmap)))
5242 osd_consistency_check(oti, dev, oic);
5248 * Returns a cookie for current position of the iterator head, so that
5249 * user can use this cookie to load/start the iterator next time.
5251 * \param di iterator's in memory structure
5253 * \retval cookie for current position, on success
5255 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
5257 struct osd_it_ea *it = (struct osd_it_ea *)di;
5259 return it->oie_dirent->oied_off;
5263 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5264 * to load a directory entry at a time and stored it i inn,
5265 * in iterator's in-memory data structure.
5267 * \param di struct osd_it_ea, iterator's in memory structure
5269 * \retval +ve on success
5270 * \retval -ve on error
5272 static int osd_it_ea_load(const struct lu_env *env,
5273 const struct dt_it *di, __u64 hash)
5275 struct osd_it_ea *it = (struct osd_it_ea *)di;
5279 it->oie_file.f_pos = hash;
5281 rc = osd_ldiskfs_it_fill(env, di);
5289 * Index lookup function for interoperability mode (b11826).
5291 * \param key, key i.e. file name to be searched
5293 * \retval +ve, on success
5294 * \retval -ve, on error
5296 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
5297 struct dt_rec *rec, const struct dt_key *key,
5298 struct lustre_capa *capa)
5300 struct osd_object *obj = osd_dt_obj(dt);
5305 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
5306 LINVRNT(osd_invariant(obj));
5308 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
5311 rc = osd_ea_lookup_rec(env, obj, rec, key);
5318 * Index and Iterator operations for interoperability
5319 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
5321 static const struct dt_index_operations osd_index_ea_ops = {
5322 .dio_lookup = osd_index_ea_lookup,
5323 .dio_declare_insert = osd_index_declare_ea_insert,
5324 .dio_insert = osd_index_ea_insert,
5325 .dio_declare_delete = osd_index_declare_ea_delete,
5326 .dio_delete = osd_index_ea_delete,
5328 .init = osd_it_ea_init,
5329 .fini = osd_it_ea_fini,
5330 .get = osd_it_ea_get,
5331 .put = osd_it_ea_put,
5332 .next = osd_it_ea_next,
5333 .key = osd_it_ea_key,
5334 .key_size = osd_it_ea_key_size,
5335 .rec = osd_it_ea_rec,
5336 .store = osd_it_ea_store,
5337 .load = osd_it_ea_load
5341 static void *osd_key_init(const struct lu_context *ctx,
5342 struct lu_context_key *key)
5344 struct osd_thread_info *info;
5346 OBD_ALLOC_PTR(info);
5348 return ERR_PTR(-ENOMEM);
5350 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5351 if (info->oti_it_ea_buf == NULL)
5354 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
5356 info->oti_hlock = ldiskfs_htree_lock_alloc();
5357 if (info->oti_hlock == NULL)
5363 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5366 return ERR_PTR(-ENOMEM);
5369 static void osd_key_fini(const struct lu_context *ctx,
5370 struct lu_context_key *key, void* data)
5372 struct osd_thread_info *info = data;
5374 if (info->oti_hlock != NULL)
5375 ldiskfs_htree_lock_free(info->oti_hlock);
5376 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
5377 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
5378 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
5382 static void osd_key_exit(const struct lu_context *ctx,
5383 struct lu_context_key *key, void *data)
5385 struct osd_thread_info *info = data;
5387 LASSERT(info->oti_r_locks == 0);
5388 LASSERT(info->oti_w_locks == 0);
5389 LASSERT(info->oti_txns == 0);
5392 /* type constructor/destructor: osd_type_init, osd_type_fini */
5393 LU_TYPE_INIT_FINI(osd, &osd_key);
5395 struct lu_context_key osd_key = {
5396 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
5397 .lct_init = osd_key_init,
5398 .lct_fini = osd_key_fini,
5399 .lct_exit = osd_key_exit
5403 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
5404 const char *name, struct lu_device *next)
5406 struct osd_device *osd = osd_dev(d);
5408 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
5409 >= sizeof(osd->od_svname))
5411 return osd_procfs_init(osd, name);
5414 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
5418 /* shutdown quota slave instance associated with the device */
5419 if (o->od_quota_slave != NULL) {
5420 qsd_fini(env, o->od_quota_slave);
5421 o->od_quota_slave = NULL;
5427 static void osd_umount(const struct lu_env *env, struct osd_device *o)
5431 if (o->od_mnt != NULL) {
5432 shrink_dcache_sb(osd_sb(o));
5433 osd_sync(env, &o->od_dt_dev);
5442 static int osd_mount(const struct lu_env *env,
5443 struct osd_device *o, struct lustre_cfg *cfg)
5445 const char *name = lustre_cfg_string(cfg, 0);
5446 const char *dev = lustre_cfg_string(cfg, 1);
5448 unsigned long page, s_flags, lmd_flags = 0;
5449 struct page *__page;
5450 struct file_system_type *type;
5451 char *options = NULL;
5453 struct osd_thread_info *info = osd_oti_get(env);
5454 struct lu_fid *fid = &info->oti_fid;
5455 struct inode *inode;
5459 if (o->od_mnt != NULL)
5462 if (strlen(dev) >= sizeof(o->od_mntdev))
5464 strcpy(o->od_mntdev, dev);
5466 OBD_PAGE_ALLOC(__page, GFP_IOFS);
5468 GOTO(out, rc = -ENOMEM);
5470 str = lustre_cfg_string(cfg, 2);
5471 s_flags = simple_strtoul(str, NULL, 0);
5472 str = strstr(str, ":");
5474 lmd_flags = simple_strtoul(str + 1, NULL, 0);
5475 opts = lustre_cfg_string(cfg, 3);
5476 page = (unsigned long)page_address(__page);
5477 options = (char *)page;
5480 strcat(options, "user_xattr,acl");
5482 strcat(options, opts);
5484 /* Glom up mount options */
5485 if (*options != '\0')
5486 strcat(options, ",");
5487 strlcat(options, "no_mbcache", PAGE_CACHE_SIZE);
5489 type = get_fs_type("ldiskfs");
5491 CERROR("%s: cannot find ldiskfs module\n", name);
5492 GOTO(out, rc = -ENODEV);
5495 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
5496 module_put(type->owner);
5498 if (IS_ERR(o->od_mnt)) {
5499 rc = PTR_ERR(o->od_mnt);
5501 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
5505 #ifdef HAVE_DEV_SET_RDONLY
5506 if (dev_check_rdonly(o->od_mnt->mnt_sb->s_bdev)) {
5507 CERROR("%s: underlying device %s is marked as read-only. "
5508 "Setup failed\n", name, dev);
5509 GOTO(out_mnt, rc = -EROFS);
5513 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
5514 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
5515 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
5516 GOTO(out_mnt, rc = -EINVAL);
5519 inode = osd_sb(o)->s_root->d_inode;
5520 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
5521 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
5522 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
5524 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
5528 if (lmd_flags & LMD_FLG_NOSCRUB)
5539 OBD_PAGE_FREE(__page);
5544 static struct lu_device *osd_device_fini(const struct lu_env *env,
5545 struct lu_device *d)
5547 struct osd_device *o = osd_dev(d);
5551 osd_shutdown(env, o);
5552 osd_scrub_cleanup(env, o);
5553 osd_obj_map_fini(o);
5559 static int osd_device_init0(const struct lu_env *env,
5560 struct osd_device *o,
5561 struct lustre_cfg *cfg)
5563 struct lu_device *l = osd2lu_dev(o);
5564 struct osd_thread_info *info;
5568 /* if the module was re-loaded, env can loose its keys */
5569 rc = lu_env_refill((struct lu_env *) env);
5572 info = osd_oti_get(env);
5575 l->ld_ops = &osd_lu_ops;
5576 o->od_dt_dev.dd_ops = &osd_dt_ops;
5578 spin_lock_init(&o->od_osfs_lock);
5579 mutex_init(&o->od_otable_mutex);
5580 o->od_osfs_age = cfs_time_shift_64(-1000);
5582 o->od_capa_hash = init_capa_hash();
5583 if (o->od_capa_hash == NULL)
5584 GOTO(out, rc = -ENOMEM);
5586 o->od_read_cache = 1;
5587 o->od_writethrough_cache = 1;
5588 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
5590 rc = osd_mount(env, o, cfg);
5594 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
5595 sizeof(o->od_svname));
5596 if (cplen >= sizeof(o->od_svname)) {
5601 if (server_name_is_ost(o->od_svname))
5604 rc = osd_obj_map_init(env, o);
5608 rc = lu_site_init(&o->od_site, l);
5610 GOTO(out_compat, rc);
5611 o->od_site.ls_bottom_dev = l;
5613 rc = lu_site_init_finish(&o->od_site);
5617 /* self-repair LMA by default */
5618 o->od_lma_self_repair = 1;
5620 CFS_INIT_LIST_HEAD(&o->od_ios_list);
5621 /* setup scrub, including OI files initialization */
5622 rc = osd_scrub_setup(env, o);
5626 rc = osd_procfs_init(o, o->od_svname);
5628 CERROR("%s: can't initialize procfs: rc = %d\n",
5630 GOTO(out_scrub, rc);
5633 LASSERT(l->ld_site->ls_linkage.next && l->ld_site->ls_linkage.prev);
5635 /* initialize quota slave instance */
5636 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
5638 if (IS_ERR(o->od_quota_slave)) {
5639 rc = PTR_ERR(o->od_quota_slave);
5640 o->od_quota_slave = NULL;
5641 GOTO(out_procfs, rc);
5649 osd_scrub_cleanup(env, o);
5651 lu_site_fini(&o->od_site);
5653 osd_obj_map_fini(o);
5657 cleanup_capa_hash(o->od_capa_hash);
5662 static struct lu_device *osd_device_alloc(const struct lu_env *env,
5663 struct lu_device_type *t,
5664 struct lustre_cfg *cfg)
5666 struct osd_device *o;
5671 return ERR_PTR(-ENOMEM);
5673 rc = dt_device_init(&o->od_dt_dev, t);
5675 /* Because the ctx might be revived in dt_device_init,
5676 * refill the env here */
5677 lu_env_refill((struct lu_env *)env);
5678 rc = osd_device_init0(env, o, cfg);
5680 dt_device_fini(&o->od_dt_dev);
5683 if (unlikely(rc != 0))
5686 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
5689 static struct lu_device *osd_device_free(const struct lu_env *env,
5690 struct lu_device *d)
5692 struct osd_device *o = osd_dev(d);
5695 cleanup_capa_hash(o->od_capa_hash);
5696 /* XXX: make osd top device in order to release reference */
5697 d->ld_site->ls_top_dev = d;
5698 lu_site_purge(env, d->ld_site, -1);
5699 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
5700 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
5701 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
5703 lu_site_fini(&o->od_site);
5704 dt_device_fini(&o->od_dt_dev);
5709 static int osd_process_config(const struct lu_env *env,
5710 struct lu_device *d, struct lustre_cfg *cfg)
5712 struct osd_device *o = osd_dev(d);
5716 switch(cfg->lcfg_command) {
5718 err = osd_mount(env, o, cfg);
5721 lu_dev_del_linkage(d->ld_site, d);
5722 err = osd_shutdown(env, o);
5731 static int osd_recovery_complete(const struct lu_env *env,
5732 struct lu_device *d)
5734 struct osd_device *osd = osd_dev(d);
5738 if (osd->od_quota_slave == NULL)
5741 /* start qsd instance on recovery completion, this notifies the quota
5742 * slave code that we are about to process new requests now */
5743 rc = qsd_start(env, osd->od_quota_slave);
5748 * we use exports to track all osd users
5750 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
5751 struct obd_device *obd, struct obd_uuid *cluuid,
5752 struct obd_connect_data *data, void *localdata)
5754 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
5755 struct lustre_handle conn;
5759 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
5761 rc = class_connect(&conn, obd, cluuid);
5765 *exp = class_conn2export(&conn);
5767 spin_lock(&osd->od_osfs_lock);
5769 spin_unlock(&osd->od_osfs_lock);
5775 * once last export (we don't count self-export) disappeared
5776 * osd can be released
5778 static int osd_obd_disconnect(struct obd_export *exp)
5780 struct obd_device *obd = exp->exp_obd;
5781 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
5782 int rc, release = 0;
5785 /* Only disconnect the underlying layers on the final disconnect. */
5786 spin_lock(&osd->od_osfs_lock);
5788 if (osd->od_connects == 0)
5790 spin_unlock(&osd->od_osfs_lock);
5792 rc = class_disconnect(exp); /* bz 9811 */
5794 if (rc == 0 && release)
5795 class_manual_cleanup(obd);
5799 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
5800 struct lu_device *dev)
5802 struct osd_device *osd = osd_dev(dev);
5806 if (osd->od_quota_slave != NULL)
5807 /* set up quota slave objects */
5808 result = qsd_prepare(env, osd->od_quota_slave);
5813 static const struct lu_object_operations osd_lu_obj_ops = {
5814 .loo_object_init = osd_object_init,
5815 .loo_object_delete = osd_object_delete,
5816 .loo_object_release = osd_object_release,
5817 .loo_object_free = osd_object_free,
5818 .loo_object_print = osd_object_print,
5819 .loo_object_invariant = osd_object_invariant
5822 const struct lu_device_operations osd_lu_ops = {
5823 .ldo_object_alloc = osd_object_alloc,
5824 .ldo_process_config = osd_process_config,
5825 .ldo_recovery_complete = osd_recovery_complete,
5826 .ldo_prepare = osd_prepare,
5829 static const struct lu_device_type_operations osd_device_type_ops = {
5830 .ldto_init = osd_type_init,
5831 .ldto_fini = osd_type_fini,
5833 .ldto_start = osd_type_start,
5834 .ldto_stop = osd_type_stop,
5836 .ldto_device_alloc = osd_device_alloc,
5837 .ldto_device_free = osd_device_free,
5839 .ldto_device_init = osd_device_init,
5840 .ldto_device_fini = osd_device_fini
5843 struct lu_device_type osd_device_type = {
5844 .ldt_tags = LU_DEVICE_DT,
5845 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
5846 .ldt_ops = &osd_device_type_ops,
5847 .ldt_ctx_tags = LCT_LOCAL,
5851 * lprocfs legacy support.
5853 static struct obd_ops osd_obd_device_ops = {
5854 .o_owner = THIS_MODULE,
5855 .o_connect = osd_obd_connect,
5856 .o_disconnect = osd_obd_disconnect
5859 static int __init osd_mod_init(void)
5861 struct lprocfs_static_vars lvars;
5865 lprocfs_osd_init_vars(&lvars);
5867 rc = lu_kmem_init(ldiskfs_caches);
5871 rc = class_register_type(&osd_obd_device_ops, NULL, lvars.module_vars,
5872 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
5874 lu_kmem_fini(ldiskfs_caches);
5878 static void __exit osd_mod_exit(void)
5880 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
5881 lu_kmem_fini(ldiskfs_caches);
5884 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
5885 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
5886 MODULE_LICENSE("GPL");
5888 cfs_module(osd, "0.1.0", osd_mod_init, osd_mod_exit);