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, 2012, Whamcloud, Inc.
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>
60 * struct OBD_{ALLOC,FREE}*()
63 #include <obd_support.h>
64 /* struct ptlrpc_thread */
65 #include <lustre_net.h>
68 #include <lustre_fid.h>
70 #include "osd_internal.h"
73 /* llo_* api support */
74 #include <md_object.h>
75 /* dt_acct_features */
78 #ifdef HAVE_LDISKFS_PDO
80 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
81 "ldiskfs with parallel directory operations");
86 static const char dot[] = ".";
87 static const char dotdot[] = "..";
88 static const char remote_obj_dir[] = "REM_OBJ_DIR";
90 static const struct lu_object_operations osd_lu_obj_ops;
91 static const struct dt_object_operations osd_obj_ops;
92 static const struct dt_object_operations osd_obj_ea_ops;
93 static const struct dt_object_operations osd_obj_otable_it_ops;
94 static const struct dt_index_operations osd_index_iam_ops;
95 static const struct dt_index_operations osd_index_ea_ops;
97 static int osd_has_index(const struct osd_object *obj)
99 return obj->oo_dt.do_index_ops != NULL;
102 static int osd_object_invariant(const struct lu_object *l)
104 return osd_invariant(osd_obj(l));
108 * Concurrency: doesn't matter
110 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
112 return osd_oti_get(env)->oti_r_locks > 0;
116 * Concurrency: doesn't matter
118 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
120 struct osd_thread_info *oti = osd_oti_get(env);
121 return oti->oti_w_locks > 0 && o->oo_owner == env;
125 * Concurrency: doesn't access mutable data
127 static int osd_root_get(const struct lu_env *env,
128 struct dt_device *dev, struct lu_fid *f)
130 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
135 * OSD object methods.
139 * Concurrency: no concurrent access is possible that early in object
142 static struct lu_object *osd_object_alloc(const struct lu_env *env,
143 const struct lu_object_header *hdr,
146 struct osd_object *mo;
152 l = &mo->oo_dt.do_lu;
153 dt_object_init(&mo->oo_dt, NULL, d);
154 if (osd_dev(d)->od_iop_mode)
155 mo->oo_dt.do_ops = &osd_obj_ea_ops;
157 mo->oo_dt.do_ops = &osd_obj_ops;
159 l->lo_ops = &osd_lu_obj_ops;
160 cfs_init_rwsem(&mo->oo_sem);
161 cfs_init_rwsem(&mo->oo_ext_idx_sem);
162 cfs_spin_lock_init(&mo->oo_guard);
169 static int osd_get_lma(struct inode *inode, struct dentry *dentry,
170 struct lustre_mdt_attrs *lma)
174 dentry->d_inode = inode;
175 rc = inode->i_op->getxattr(dentry, XATTR_NAME_LMA, (void *)lma,
178 /* Check LMA compatibility */
179 if (lma->lma_incompat & ~cpu_to_le32(LMA_INCOMPAT_SUPP)) {
180 CWARN("%.16s: unsupported incompat LMA feature(s) "
182 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
183 inode->i_ino, le32_to_cpu(lma->lma_incompat) &
187 lustre_lma_swab(lma);
190 } else if (rc == 0) {
198 * retrieve object from backend ext fs.
200 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
201 struct osd_inode_id *id)
203 struct inode *inode = NULL;
205 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
207 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
208 id->oii_ino, PTR_ERR(inode));
209 } else if (id->oii_gen != OSD_OII_NOGEN &&
210 inode->i_generation != id->oii_gen) {
211 CDEBUG(D_INODE, "unmatched inode: ino = %u, gen0 = %u, "
213 id->oii_ino, id->oii_gen, inode->i_generation);
215 inode = ERR_PTR(-ESTALE);
216 } else if (inode->i_nlink == 0) {
217 /* due to parallel readdir and unlink,
218 * we can have dead inode here. */
219 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
220 make_bad_inode(inode);
222 inode = ERR_PTR(-ESTALE);
223 } else if (is_bad_inode(inode)) {
224 CWARN("%.16s: bad inode: ino = %u\n",
225 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, id->oii_ino);
227 inode = ERR_PTR(-ENOENT);
229 if (id->oii_gen == OSD_OII_NOGEN)
230 osd_id_gen(id, inode->i_ino, inode->i_generation);
232 /* Do not update file c/mtime in ldiskfs.
233 * NB: we don't have any lock to protect this because we don't
234 * have reference on osd_object now, but contention with
235 * another lookup + attr_set can't happen in the tiny window
236 * between if (...) and set S_NOCMTIME. */
237 if (!(inode->i_flags & S_NOCMTIME))
238 inode->i_flags |= S_NOCMTIME;
243 struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
244 struct osd_inode_id *id, struct lu_fid *fid)
246 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
250 inode = osd_iget(info, dev, id);
254 rc = osd_get_lma(inode, &info->oti_obj_dentry, lma);
256 *fid = lma->lma_self_fid;
257 } else if (rc == -ENODATA) {
258 LU_IGIF_BUILD(fid, inode->i_ino, inode->i_generation);
266 static struct inode *
267 osd_iget_verify(struct osd_thread_info *info, struct osd_device *dev,
268 struct osd_inode_id *id, const struct lu_fid *fid)
270 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
274 inode = osd_iget(info, dev, id);
278 rc = osd_get_lma(inode, &info->oti_obj_dentry, lma);
280 if (rc == -ENODATA) {
281 CDEBUG(D_LFSCK, "inconsistent obj: NULL, %lu, "DFID"\n",
282 inode->i_ino, PFID(fid));
289 if (!lu_fid_eq(fid, &lma->lma_self_fid)) {
290 CDEBUG(D_LFSCK, "inconsistent obj: "DFID", %lu, "DFID"\n",
291 PFID(&lma->lma_self_fid), inode->i_ino, PFID(fid));
293 return ERR_PTR(EREMCHG);
298 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
299 const struct lu_fid *fid,
300 const struct lu_object_conf *conf)
302 struct osd_thread_info *info;
303 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
304 struct osd_device *dev;
305 struct osd_idmap_cache *oic;
306 struct osd_inode_id *id;
308 struct osd_scrub *scrub;
309 struct scrub_file *sf;
314 LINVRNT(osd_invariant(obj));
315 LASSERT(obj->oo_inode == NULL);
316 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID, PFID(fid));
319 scrub = &dev->od_scrub;
320 sf = &scrub->os_file;
321 info = osd_oti_get(env);
323 oic = &info->oti_cache;
326 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
329 if (fid_is_norm(fid)) {
330 /* Search order: 1. per-thread cache. */
331 if (lu_fid_eq(fid, &oic->oic_fid)) {
333 } else if (!cfs_list_empty(&scrub->os_inconsistent_items)) {
334 /* Search order: 2. OI scrub pending list. */
335 result = osd_oii_lookup(dev, fid, id);
340 if (sf->sf_flags & SF_INCONSISTENT)
345 * Objects are created as locking anchors or place holders for objects
346 * yet to be created. No need to osd_oi_lookup() at here because FID
347 * shouldn't never be re-used, if it's really a duplicate FID from
348 * unexpected reason, we should be able to detect it later by calling
349 * do_create->osd_oi_insert()
351 if (conf != NULL && (conf->loc_flags & LOC_F_NEW) != 0)
352 GOTO(out, result = 0);
354 /* Search order: 3. OI files. */
355 result = osd_oi_lookup(info, dev, fid, id);
356 if (result == -ENOENT) {
357 if (!fid_is_norm(fid) ||
358 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
360 GOTO(out, result = 0);
370 inode = osd_iget(info, dev, id);
372 inode = osd_iget_verify(info, dev, id, fid);
374 result = PTR_ERR(inode);
375 if (result == -ENOENT || result == -ESTALE) {
376 fid_zero(&oic->oic_fid);
378 } else if (result == -EREMCHG) {
381 if (thread_is_running(&scrub->os_thread)) {
382 result = -EINPROGRESS;
383 } else if (!scrub->os_no_scrub) {
384 result = osd_scrub_start(dev);
385 LCONSOLE_ERROR("%.16s: trigger OI scrub by RPC "
386 "for "DFID", rc = %d [1]\n",
387 LDISKFS_SB(osd_sb(dev))->s_es->\
388 s_volume_name,PFID(fid), result);
389 if (result == 0 || result == -EALREADY)
390 result = -EINPROGRESS;
399 obj->oo_inode = inode;
400 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
401 if (dev->od_iop_mode) {
402 obj->oo_compat_dot_created = 1;
403 obj->oo_compat_dotdot_created = 1;
406 if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
407 GOTO(out, result = 0);
409 LASSERT(obj->oo_hl_head == NULL);
410 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
411 if (obj->oo_hl_head == NULL) {
412 obj->oo_inode = NULL;
414 GOTO(out, result = -ENOMEM);
416 GOTO(out, result = 0);
419 LINVRNT(osd_invariant(obj));
424 * Concurrency: shouldn't matter.
426 static void osd_object_init0(struct osd_object *obj)
428 LASSERT(obj->oo_inode != NULL);
429 obj->oo_dt.do_body_ops = &osd_body_ops;
430 obj->oo_dt.do_lu.lo_header->loh_attr |=
431 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
435 * Concurrency: no concurrent access is possible that early in object
438 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
439 const struct lu_object_conf *conf)
441 struct osd_object *obj = osd_obj(l);
444 LINVRNT(osd_invariant(obj));
446 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
447 obj->oo_dt.do_body_ops = &osd_body_ops_new;
449 if (obj->oo_inode != NULL) {
450 osd_object_init0(obj);
451 } else if (fid_is_otable_it(&l->lo_header->loh_fid)) {
452 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
453 /* LFSCK iterator object is special without inode */
454 l->lo_header->loh_attr |= LOHA_EXISTS;
457 LINVRNT(osd_invariant(obj));
462 * Concurrency: no concurrent access is possible that late in object
465 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
467 struct osd_object *obj = osd_obj(l);
469 LINVRNT(osd_invariant(obj));
471 dt_object_fini(&obj->oo_dt);
472 if (obj->oo_hl_head != NULL)
473 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
478 * Concurrency: no concurrent access is possible that late in object
481 static void osd_index_fini(struct osd_object *o)
483 struct iam_container *bag;
485 if (o->oo_dir != NULL) {
486 bag = &o->oo_dir->od_container;
487 if (o->oo_inode != NULL) {
488 if (bag->ic_object == o->oo_inode)
489 iam_container_fini(bag);
491 OBD_FREE_PTR(o->oo_dir);
497 * Concurrency: no concurrent access is possible that late in object
498 * life-cycle (for all existing callers, that is. New callers have to provide
499 * their own locking.)
501 static int osd_inode_unlinked(const struct inode *inode)
503 return inode->i_nlink == 0;
507 OSD_TXN_OI_DELETE_CREDITS = 20,
508 OSD_TXN_INODE_DELETE_CREDITS = 20
515 #if OSD_THANDLE_STATS
517 * Set time when the handle is allocated
519 static void osd_th_alloced(struct osd_thandle *oth)
521 oth->oth_alloced = cfs_time_current();
525 * Set time when the handle started
527 static void osd_th_started(struct osd_thandle *oth)
529 oth->oth_started = cfs_time_current();
533 * Helper function to convert time interval to microseconds packed in
534 * long int (default time units for the counter in "stats" initialized
535 * by lu_time_init() )
537 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
541 cfs_duration_usec(cfs_time_sub(end, start), &val);
542 return val.tv_sec * 1000000 + val.tv_usec;
546 * Check whether the we deal with this handle for too long.
548 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
549 cfs_time_t alloced, cfs_time_t started,
552 cfs_time_t now = cfs_time_current();
554 LASSERT(dev != NULL);
556 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
557 interval_to_usec(alloced, started));
558 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
559 interval_to_usec(started, closed));
560 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
561 interval_to_usec(closed, now));
563 if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
564 CWARN("transaction handle %p was open for too long: "
566 "alloced "CFS_TIME_T" ,"
567 "started "CFS_TIME_T" ,"
568 "closed "CFS_TIME_T"\n",
569 oth, now, alloced, started, closed);
570 libcfs_debug_dumpstack(NULL);
574 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
576 cfs_time_t __closed = cfs_time_current(); \
577 cfs_time_t __alloced = oth->oth_alloced; \
578 cfs_time_t __started = oth->oth_started; \
581 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
584 #else /* OSD_THANDLE_STATS */
586 #define osd_th_alloced(h) do {} while(0)
587 #define osd_th_started(h) do {} while(0)
588 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
590 #endif /* OSD_THANDLE_STATS */
593 * Concurrency: doesn't access mutable data.
595 static int osd_param_is_sane(const struct osd_device *dev,
596 const struct thandle *th)
598 struct osd_thandle *oh;
599 oh = container_of0(th, struct osd_thandle, ot_super);
600 return oh->ot_credits <= osd_journal(dev)->j_max_transaction_buffers;
604 * Concurrency: shouldn't matter.
606 #ifdef HAVE_LDISKFS_JOURNAL_CALLBACK_ADD
607 static void osd_trans_commit_cb(struct super_block *sb,
608 struct journal_callback *jcb, int error)
610 static void osd_trans_commit_cb(struct journal_callback *jcb, int error)
613 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
614 struct thandle *th = &oh->ot_super;
615 struct lu_device *lud = &th->th_dev->dd_lu_dev;
616 struct dt_txn_commit_cb *dcb, *tmp;
618 LASSERT(oh->ot_handle == NULL);
621 CERROR("transaction @0x%p commit error: %d\n", th, error);
623 dt_txn_hook_commit(th);
625 /* call per-transaction callbacks if any */
626 cfs_list_for_each_entry_safe(dcb, tmp, &oh->ot_dcb_list, dcb_linkage) {
627 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
628 "commit callback entry: magic=%x name='%s'\n",
629 dcb->dcb_magic, dcb->dcb_name);
630 cfs_list_del_init(&dcb->dcb_linkage);
631 dcb->dcb_func(NULL, th, dcb, error);
634 lu_ref_del_at(&lud->ld_reference, oh->ot_dev_link, "osd-tx", th);
638 lu_context_exit(&th->th_ctx);
639 lu_context_fini(&th->th_ctx);
643 static struct thandle *osd_trans_create(const struct lu_env *env,
646 struct osd_thread_info *oti = osd_oti_get(env);
647 struct osd_iobuf *iobuf = &oti->oti_iobuf;
648 struct osd_thandle *oh;
652 /* on pending IO in this thread should left from prev. request */
653 LASSERT(cfs_atomic_read(&iobuf->dr_numreqs) == 0);
655 th = ERR_PTR(-ENOMEM);
656 OBD_ALLOC_GFP(oh, sizeof *oh, CFS_ALLOC_IO);
658 oh->ot_quota_trans = &oti->oti_quota_trans;
659 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
663 th->th_tags = LCT_TX_HANDLE;
665 oti->oti_dev = osd_dt_dev(d);
666 CFS_INIT_LIST_HEAD(&oh->ot_dcb_list);
673 * Concurrency: shouldn't matter.
675 int osd_trans_start(const struct lu_env *env, struct dt_device *d,
678 struct osd_thread_info *oti = osd_oti_get(env);
679 struct osd_device *dev = osd_dt_dev(d);
681 struct osd_thandle *oh;
686 LASSERT(current->journal_info == NULL);
688 oh = container_of0(th, struct osd_thandle, ot_super);
690 LASSERT(oh->ot_handle == NULL);
692 rc = dt_txn_hook_start(env, d, th);
696 if (!osd_param_is_sane(dev, th)) {
697 CWARN("%.16s: too many transaction credits (%d > %d)\n",
698 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
700 osd_journal(dev)->j_max_transaction_buffers);
701 /* XXX Limit the credits to 'max_transaction_buffers', and
702 * let the underlying filesystem to catch the error if
703 * we really need so many credits.
705 * This should be removed when we can calculate the
706 * credits precisely. */
707 oh->ot_credits = osd_journal(dev)->j_max_transaction_buffers;
708 #ifdef OSD_TRACK_DECLARES
709 CERROR(" attr_set: %d, punch: %d, xattr_set: %d,\n",
710 oh->ot_declare_attr_set, oh->ot_declare_punch,
711 oh->ot_declare_xattr_set);
712 CERROR(" create: %d, ref_add: %d, ref_del: %d, write: %d\n",
713 oh->ot_declare_create, oh->ot_declare_ref_add,
714 oh->ot_declare_ref_del, oh->ot_declare_write);
715 CERROR(" insert: %d, delete: %d, destroy: %d\n",
716 oh->ot_declare_insert, oh->ot_declare_delete,
717 oh->ot_declare_destroy);
722 * XXX temporary stuff. Some abstraction layer should
725 jh = ldiskfs_journal_start_sb(osd_sb(dev), oh->ot_credits);
729 LASSERT(oti->oti_txns == 0);
730 lu_context_init(&th->th_ctx, th->th_tags);
731 lu_context_enter(&th->th_ctx);
733 lu_device_get(&d->dd_lu_dev);
734 oh->ot_dev_link = lu_ref_add(&d->dd_lu_dev.ld_reference,
746 * Concurrency: shouldn't matter.
748 static int osd_trans_stop(const struct lu_env *env, struct thandle *th)
751 struct osd_thandle *oh;
752 struct osd_thread_info *oti = osd_oti_get(env);
753 struct osd_iobuf *iobuf = &oti->oti_iobuf;
754 struct qsd_instance *qsd = oti->oti_dev->od_quota_slave;
757 oh = container_of0(th, struct osd_thandle, ot_super);
760 /* inform the quota slave device that the transaction is
762 qsd_op_end(env, qsd, oh->ot_quota_trans);
763 oh->ot_quota_trans = NULL;
765 if (oh->ot_handle != NULL) {
766 handle_t *hdl = oh->ot_handle;
769 * add commit callback
770 * notice we don't do this in osd_trans_start()
771 * as underlying transaction can change during truncate
773 osd_journal_callback_set(hdl, osd_trans_commit_cb,
776 LASSERT(oti->oti_txns == 1);
778 rc = dt_txn_hook_stop(env, th);
780 CERROR("Failure in transaction hook: %d\n", rc);
782 /* hook functions might modify th_sync */
783 hdl->h_sync = th->th_sync;
785 oh->ot_handle = NULL;
786 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
787 rc = ldiskfs_journal_stop(hdl));
789 CERROR("Failure to stop transaction: %d\n", rc);
794 /* as we want IO to journal and data IO be concurrent, we don't block
795 * awaiting data IO completion in osd_do_bio(), instead we wait here
796 * once transaction is submitted to the journal. all reqular requests
797 * don't do direct IO (except read/write), thus this wait_event becomes
800 * IMPORTANT: we have to wait till any IO submited by the thread is
801 * completed otherwise iobuf may be corrupted by different request
803 cfs_wait_event(iobuf->dr_wait,
804 cfs_atomic_read(&iobuf->dr_numreqs) == 0);
806 rc = iobuf->dr_error;
811 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
813 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
816 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
817 LASSERT(&dcb->dcb_func != NULL);
818 cfs_list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
824 * Called just before object is freed. Releases all resources except for
825 * object itself (that is released by osd_object_free()).
827 * Concurrency: no concurrent access is possible that late in object
830 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
832 struct osd_object *obj = osd_obj(l);
833 struct inode *inode = obj->oo_inode;
835 LINVRNT(osd_invariant(obj));
838 * If object is unlinked remove fid->ino mapping from object index.
844 obj->oo_inode = NULL;
849 * Concurrency: ->loo_object_release() is called under site spin-lock.
851 static void osd_object_release(const struct lu_env *env,
857 * Concurrency: shouldn't matter.
859 static int osd_object_print(const struct lu_env *env, void *cookie,
860 lu_printer_t p, const struct lu_object *l)
862 struct osd_object *o = osd_obj(l);
865 if (o->oo_dir != NULL)
866 d = o->oo_dir->od_container.ic_descr;
869 return (*p)(env, cookie,
870 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
872 o->oo_inode ? o->oo_inode->i_ino : 0UL,
873 o->oo_inode ? o->oo_inode->i_generation : 0,
874 d ? d->id_ops->id_name : "plain");
878 * Concurrency: shouldn't matter.
880 int osd_statfs(const struct lu_env *env, struct dt_device *d,
881 struct obd_statfs *sfs)
883 struct osd_device *osd = osd_dt_dev(d);
884 struct super_block *sb = osd_sb(osd);
885 struct kstatfs *ksfs;
888 if (unlikely(osd->od_mnt == NULL))
891 /* osd_lproc.c call this without env, allocate ksfs for that case */
892 if (unlikely(env == NULL)) {
897 ksfs = &osd_oti_get(env)->oti_ksfs;
900 cfs_spin_lock(&osd->od_osfs_lock);
902 if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
903 result = sb->s_op->statfs(sb->s_root, ksfs);
904 if (likely(result == 0)) { /* N.B. statfs can't really fail */
905 osd->od_osfs_age = cfs_time_current_64();
906 statfs_pack(&osd->od_statfs, ksfs);
907 if (sb->s_flags & MS_RDONLY)
908 sfs->os_state = OS_STATE_READONLY;
912 if (likely(result == 0))
913 *sfs = osd->od_statfs;
914 cfs_spin_unlock(&osd->od_osfs_lock);
916 if (unlikely(env == NULL))
923 * Estimate space needed for file creations. We assume the largest filename
924 * which is 2^64 - 1, hence a filename of 20 chars.
925 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
927 #ifdef __LDISKFS_DIR_REC_LEN
928 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
930 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
934 * Concurrency: doesn't access mutable data.
936 static void osd_conf_get(const struct lu_env *env,
937 const struct dt_device *dev,
938 struct dt_device_param *param)
940 struct super_block *sb = osd_sb(osd_dt_dev(dev));
943 * XXX should be taken from not-yet-existing fs abstraction layer.
945 param->ddp_mnt = osd_dt_dev(dev)->od_mnt;
946 param->ddp_max_name_len = LDISKFS_NAME_LEN;
947 param->ddp_max_nlink = LDISKFS_LINK_MAX;
948 param->ddp_block_shift = sb->s_blocksize_bits;
949 param->ddp_mount_type = LDD_MT_LDISKFS;
950 param->ddp_maxbytes = sb->s_maxbytes;
951 /* Overhead estimate should be fairly accurate, so we really take a tiny
952 * error margin which also avoids fragmenting the filesystem too much */
953 param->ddp_grant_reserved = 2; /* end up to be 1.9% after conversion */
954 /* inode are statically allocated, so per-inode space consumption
955 * is the space consumed by the directory entry */
956 param->ddp_inodespace = PER_OBJ_USAGE;
957 /* per-fragment overhead to be used by the client code */
958 param->ddp_grant_frag = 6 * LDISKFS_BLOCK_SIZE(sb);
959 param->ddp_mntopts = 0;
960 if (test_opt(sb, XATTR_USER))
961 param->ddp_mntopts |= MNTOPT_USERXATTR;
962 if (test_opt(sb, POSIX_ACL))
963 param->ddp_mntopts |= MNTOPT_ACL;
965 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
966 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
967 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE;
970 param->ddp_max_ea_size = sb->s_blocksize;
975 * Helper function to get and fill the buffer with input values.
977 static struct lu_buf *osd_buf_get(const struct lu_env *env, void *area, ssize_t len)
981 buf = &osd_oti_get(env)->oti_buf;
988 * Concurrency: shouldn't matter.
990 static int osd_sync(const struct lu_env *env, struct dt_device *d)
992 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
993 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
997 * Start commit for OSD device.
999 * An implementation of dt_commit_async method for OSD device.
1000 * Asychronously starts underlayng fs sync and thereby a transaction
1003 * \param env environment
1004 * \param d dt device
1006 * \see dt_device_operations
1008 static int osd_commit_async(const struct lu_env *env,
1009 struct dt_device *d)
1011 struct super_block *s = osd_sb(osd_dt_dev(d));
1014 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1015 RETURN(s->s_op->sync_fs(s, 0));
1019 * Concurrency: shouldn't matter.
1022 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1024 struct super_block *sb = osd_sb(osd_dt_dev(d));
1028 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1030 rc = __lvfs_set_rdonly(sb->s_bdev, LDISKFS_SB(sb)->journal_bdev);
1035 * Concurrency: serialization provided by callers.
1037 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
1038 int mode, unsigned long timeout, __u32 alg,
1039 struct lustre_capa_key *keys)
1041 struct osd_device *dev = osd_dt_dev(d);
1044 dev->od_fl_capa = mode;
1045 dev->od_capa_timeout = timeout;
1046 dev->od_capa_alg = alg;
1047 dev->od_capa_keys = keys;
1052 * Note: we do not count into QUOTA here.
1053 * If we mount with --data_journal we may need more.
1055 const int osd_dto_credits_noquota[DTO_NR] = {
1058 * INDEX_EXTRA_TRANS_BLOCKS(8) +
1059 * SINGLEDATA_TRANS_BLOCKS(8)
1060 * XXX Note: maybe iam need more, since iam have more level than
1063 [DTO_INDEX_INSERT] = 16,
1064 [DTO_INDEX_DELETE] = 16,
1068 [DTO_INDEX_UPDATE] = 16,
1070 * Create a object. The same as create object in EXT3.
1071 * DATA_TRANS_BLOCKS(14) +
1072 * INDEX_EXTRA_BLOCKS(8) +
1073 * 3(inode bits, groups, GDT)
1075 [DTO_OBJECT_CREATE] = 25,
1077 * XXX: real credits to be fixed
1079 [DTO_OBJECT_DELETE] = 25,
1081 * Attr set credits (inode)
1083 [DTO_ATTR_SET_BASE] = 1,
1085 * Xattr set. The same as xattr of EXT3.
1086 * DATA_TRANS_BLOCKS(14)
1087 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1088 * are also counted in. Do not know why?
1090 [DTO_XATTR_SET] = 14,
1093 * credits for inode change during write.
1095 [DTO_WRITE_BASE] = 3,
1097 * credits for single block write.
1099 [DTO_WRITE_BLOCK] = 14,
1101 * Attr set credits for chown.
1102 * This is extra credits for setattr, and it is null without quota
1104 [DTO_ATTR_SET_CHOWN]= 0
1107 static const struct dt_device_operations osd_dt_ops = {
1108 .dt_root_get = osd_root_get,
1109 .dt_statfs = osd_statfs,
1110 .dt_trans_create = osd_trans_create,
1111 .dt_trans_start = osd_trans_start,
1112 .dt_trans_stop = osd_trans_stop,
1113 .dt_trans_cb_add = osd_trans_cb_add,
1114 .dt_conf_get = osd_conf_get,
1115 .dt_sync = osd_sync,
1117 .dt_commit_async = osd_commit_async,
1118 .dt_init_capa_ctxt = osd_init_capa_ctxt,
1121 static void osd_object_read_lock(const struct lu_env *env,
1122 struct dt_object *dt, unsigned role)
1124 struct osd_object *obj = osd_dt_obj(dt);
1125 struct osd_thread_info *oti = osd_oti_get(env);
1127 LINVRNT(osd_invariant(obj));
1129 LASSERT(obj->oo_owner != env);
1130 cfs_down_read_nested(&obj->oo_sem, role);
1132 LASSERT(obj->oo_owner == NULL);
1136 static void osd_object_write_lock(const struct lu_env *env,
1137 struct dt_object *dt, unsigned role)
1139 struct osd_object *obj = osd_dt_obj(dt);
1140 struct osd_thread_info *oti = osd_oti_get(env);
1142 LINVRNT(osd_invariant(obj));
1144 LASSERT(obj->oo_owner != env);
1145 cfs_down_write_nested(&obj->oo_sem, role);
1147 LASSERT(obj->oo_owner == NULL);
1148 obj->oo_owner = env;
1152 static void osd_object_read_unlock(const struct lu_env *env,
1153 struct dt_object *dt)
1155 struct osd_object *obj = osd_dt_obj(dt);
1156 struct osd_thread_info *oti = osd_oti_get(env);
1158 LINVRNT(osd_invariant(obj));
1160 LASSERT(oti->oti_r_locks > 0);
1162 cfs_up_read(&obj->oo_sem);
1165 static void osd_object_write_unlock(const struct lu_env *env,
1166 struct dt_object *dt)
1168 struct osd_object *obj = osd_dt_obj(dt);
1169 struct osd_thread_info *oti = osd_oti_get(env);
1171 LINVRNT(osd_invariant(obj));
1173 LASSERT(obj->oo_owner == env);
1174 LASSERT(oti->oti_w_locks > 0);
1176 obj->oo_owner = NULL;
1177 cfs_up_write(&obj->oo_sem);
1180 static int osd_object_write_locked(const struct lu_env *env,
1181 struct dt_object *dt)
1183 struct osd_object *obj = osd_dt_obj(dt);
1185 LINVRNT(osd_invariant(obj));
1187 return obj->oo_owner == env;
1190 static int capa_is_sane(const struct lu_env *env,
1191 struct osd_device *dev,
1192 struct lustre_capa *capa,
1193 struct lustre_capa_key *keys)
1195 struct osd_thread_info *oti = osd_oti_get(env);
1196 struct lustre_capa *tcapa = &oti->oti_capa;
1197 struct obd_capa *oc;
1201 oc = capa_lookup(dev->od_capa_hash, capa, 0);
1203 if (capa_is_expired(oc)) {
1204 DEBUG_CAPA(D_ERROR, capa, "expired");
1211 if (capa_is_expired_sec(capa)) {
1212 DEBUG_CAPA(D_ERROR, capa, "expired");
1216 cfs_spin_lock(&capa_lock);
1217 for (i = 0; i < 2; i++) {
1218 if (keys[i].lk_keyid == capa->lc_keyid) {
1219 oti->oti_capa_key = keys[i];
1223 cfs_spin_unlock(&capa_lock);
1226 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1230 rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1234 if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1235 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1239 oc = capa_add(dev->od_capa_hash, capa);
1245 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1246 struct lustre_capa *capa, __u64 opc)
1248 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1249 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
1250 struct md_capainfo *ci;
1253 if (!dev->od_fl_capa)
1256 if (capa == BYPASS_CAPA)
1259 ci = md_capainfo(env);
1263 if (ci->mc_auth == LC_ID_NONE)
1267 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1271 if (!lu_fid_eq(fid, &capa->lc_fid)) {
1272 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1277 if (!capa_opc_supported(capa, opc)) {
1278 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1282 if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1283 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1290 static struct timespec *osd_inode_time(const struct lu_env *env,
1291 struct inode *inode, __u64 seconds)
1293 struct osd_thread_info *oti = osd_oti_get(env);
1294 struct timespec *t = &oti->oti_time;
1296 t->tv_sec = seconds;
1298 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1303 static void osd_inode_getattr(const struct lu_env *env,
1304 struct inode *inode, struct lu_attr *attr)
1306 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1307 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1308 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE;
1310 attr->la_atime = LTIME_S(inode->i_atime);
1311 attr->la_mtime = LTIME_S(inode->i_mtime);
1312 attr->la_ctime = LTIME_S(inode->i_ctime);
1313 attr->la_mode = inode->i_mode;
1314 attr->la_size = i_size_read(inode);
1315 attr->la_blocks = inode->i_blocks;
1316 attr->la_uid = inode->i_uid;
1317 attr->la_gid = inode->i_gid;
1318 attr->la_flags = LDISKFS_I(inode)->i_flags;
1319 attr->la_nlink = inode->i_nlink;
1320 attr->la_rdev = inode->i_rdev;
1321 attr->la_blksize = 1 << inode->i_blkbits;
1322 attr->la_blkbits = inode->i_blkbits;
1325 static int osd_attr_get(const struct lu_env *env,
1326 struct dt_object *dt,
1327 struct lu_attr *attr,
1328 struct lustre_capa *capa)
1330 struct osd_object *obj = osd_dt_obj(dt);
1332 LASSERT(dt_object_exists(dt));
1333 LINVRNT(osd_invariant(obj));
1335 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1338 cfs_spin_lock(&obj->oo_guard);
1339 osd_inode_getattr(env, obj->oo_inode, attr);
1340 cfs_spin_unlock(&obj->oo_guard);
1344 static int osd_declare_attr_set(const struct lu_env *env,
1345 struct dt_object *dt,
1346 const struct lu_attr *attr,
1347 struct thandle *handle)
1349 struct osd_thandle *oh;
1350 struct osd_object *obj;
1351 struct osd_thread_info *info = osd_oti_get(env);
1352 struct lquota_id_info *qi = &info->oti_qi;
1358 LASSERT(dt != NULL);
1359 LASSERT(handle != NULL);
1361 obj = osd_dt_obj(dt);
1362 LASSERT(osd_invariant(obj));
1364 oh = container_of0(handle, struct osd_thandle, ot_super);
1365 LASSERT(oh->ot_handle == NULL);
1367 OSD_DECLARE_OP(oh, attr_set);
1368 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
1370 if (attr == NULL || obj->oo_inode == NULL)
1373 bspace = obj->oo_inode->i_blocks;
1374 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
1375 bspace = toqb(bspace);
1377 /* Changing ownership is always preformed by super user, it should not
1380 * We still need to call the osd_declare_qid() to calculate the journal
1381 * credits for updating quota accounting files and to trigger quota
1382 * space adjustment once the operation is completed.*/
1383 if ((attr->la_valid & LA_UID) != 0 &&
1384 attr->la_uid != obj->oo_inode->i_uid) {
1385 qi->lqi_type = USRQUOTA;
1387 /* inode accounting */
1388 qi->lqi_is_blk = false;
1390 /* one more inode for the new owner ... */
1391 qi->lqi_id.qid_uid = attr->la_uid;
1393 allocated = (attr->la_uid == 0) ? true : false;
1394 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1395 if (rc == -EDQUOT || rc == -EINPROGRESS)
1400 /* and one less inode for the current uid */
1401 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1403 rc = osd_declare_qid(env, oh, qi, true, NULL);
1404 if (rc == -EDQUOT || rc == -EINPROGRESS)
1409 /* block accounting */
1410 qi->lqi_is_blk = true;
1412 /* more blocks for the new owner ... */
1413 qi->lqi_id.qid_uid = attr->la_uid;
1414 qi->lqi_space = bspace;
1415 allocated = (attr->la_uid == 0) ? true : false;
1416 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1417 if (rc == -EDQUOT || rc == -EINPROGRESS)
1422 /* and finally less blocks for the current owner */
1423 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1424 qi->lqi_space = -bspace;
1425 rc = osd_declare_qid(env, oh, qi, true, NULL);
1426 if (rc == -EDQUOT || rc == -EINPROGRESS)
1432 if (attr->la_valid & LA_GID &&
1433 attr->la_gid != obj->oo_inode->i_gid) {
1434 qi->lqi_type = GRPQUOTA;
1436 /* inode accounting */
1437 qi->lqi_is_blk = false;
1439 /* one more inode for the new group owner ... */
1440 qi->lqi_id.qid_gid = attr->la_gid;
1442 allocated = (attr->la_gid == 0) ? true : false;
1443 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1444 if (rc == -EDQUOT || rc == -EINPROGRESS)
1449 /* and one less inode for the current gid */
1450 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1452 rc = osd_declare_qid(env, oh, qi, true, NULL);
1453 if (rc == -EDQUOT || rc == -EINPROGRESS)
1458 /* block accounting */
1459 qi->lqi_is_blk = true;
1461 /* more blocks for the new owner ... */
1462 qi->lqi_id.qid_gid = attr->la_gid;
1463 qi->lqi_space = bspace;
1464 allocated = (attr->la_gid == 0) ? true : false;
1465 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1466 if (rc == -EDQUOT || rc == -EINPROGRESS)
1471 /* and finally less blocks for the current owner */
1472 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1473 qi->lqi_space = -bspace;
1474 rc = osd_declare_qid(env, oh, qi, true, NULL);
1475 if (rc == -EDQUOT || rc == -EINPROGRESS)
1484 static int osd_inode_setattr(const struct lu_env *env,
1485 struct inode *inode, const struct lu_attr *attr)
1489 bits = attr->la_valid;
1491 LASSERT(!(bits & LA_TYPE)); /* Huh? You want too much. */
1493 if (bits & LA_ATIME)
1494 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1495 if (bits & LA_CTIME)
1496 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1497 if (bits & LA_MTIME)
1498 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1499 if (bits & LA_SIZE) {
1500 LDISKFS_I(inode)->i_disksize = attr->la_size;
1501 i_size_write(inode, attr->la_size);
1505 /* OSD should not change "i_blocks" which is used by quota.
1506 * "i_blocks" should be changed by ldiskfs only. */
1507 if (bits & LA_BLOCKS)
1508 inode->i_blocks = attr->la_blocks;
1511 inode->i_mode = (inode->i_mode & S_IFMT) |
1512 (attr->la_mode & ~S_IFMT);
1514 inode->i_uid = attr->la_uid;
1516 inode->i_gid = attr->la_gid;
1517 if (bits & LA_NLINK)
1518 inode->i_nlink = attr->la_nlink;
1520 inode->i_rdev = attr->la_rdev;
1522 if (bits & LA_FLAGS) {
1523 /* always keep S_NOCMTIME */
1524 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1530 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
1532 if ((attr->la_valid & LA_UID && attr->la_uid != inode->i_uid) ||
1533 (attr->la_valid & LA_GID && attr->la_gid != inode->i_gid)) {
1538 if (attr->la_valid & LA_UID)
1539 iattr.ia_valid |= ATTR_UID;
1540 if (attr->la_valid & LA_GID)
1541 iattr.ia_valid |= ATTR_GID;
1542 iattr.ia_uid = attr->la_uid;
1543 iattr.ia_gid = attr->la_gid;
1545 rc = ll_vfs_dq_transfer(inode, &iattr);
1547 CERROR("%s: quota transfer failed: rc = %d. Is quota "
1548 "enforcement enabled on the ldiskfs filesystem?",
1549 inode->i_sb->s_id, rc);
1556 static int osd_attr_set(const struct lu_env *env,
1557 struct dt_object *dt,
1558 const struct lu_attr *attr,
1559 struct thandle *handle,
1560 struct lustre_capa *capa)
1562 struct osd_object *obj = osd_dt_obj(dt);
1563 struct inode *inode;
1566 LASSERT(handle != NULL);
1567 LASSERT(dt_object_exists(dt));
1568 LASSERT(osd_invariant(obj));
1570 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1573 OSD_EXEC_OP(handle, attr_set);
1575 inode = obj->oo_inode;
1577 rc = osd_quota_transfer(inode, attr);
1581 cfs_spin_lock(&obj->oo_guard);
1582 rc = osd_inode_setattr(env, inode, attr);
1583 cfs_spin_unlock(&obj->oo_guard);
1586 inode->i_sb->s_op->dirty_inode(inode);
1590 struct dentry *osd_child_dentry_get(const struct lu_env *env,
1591 struct osd_object *obj,
1592 const char *name, const int namelen)
1594 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
1597 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1599 struct dt_allocation_hint *hint,
1603 struct osd_device *osd = osd_obj2dev(obj);
1604 struct osd_thandle *oth;
1605 struct dt_object *parent = NULL;
1606 struct inode *inode;
1608 LINVRNT(osd_invariant(obj));
1609 LASSERT(obj->oo_inode == NULL);
1610 LASSERT(obj->oo_hl_head == NULL);
1612 if (S_ISDIR(mode) && ldiskfs_pdo) {
1613 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1614 if (obj->oo_hl_head == NULL)
1618 oth = container_of(th, struct osd_thandle, ot_super);
1619 LASSERT(oth->ot_handle->h_transaction != NULL);
1621 if (hint && hint->dah_parent)
1622 parent = hint->dah_parent;
1624 inode = ldiskfs_create_inode(oth->ot_handle,
1625 parent ? osd_dt_obj(parent)->oo_inode :
1626 osd_sb(osd)->s_root->d_inode,
1628 if (!IS_ERR(inode)) {
1629 /* Do not update file c/mtime in ldiskfs.
1630 * NB: don't need any lock because no contention at this
1632 inode->i_flags |= S_NOCMTIME;
1633 inode->i_state |= I_LUSTRE_NOSCRUB;
1634 obj->oo_inode = inode;
1637 if (obj->oo_hl_head != NULL) {
1638 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1639 obj->oo_hl_head = NULL;
1641 result = PTR_ERR(inode);
1643 LINVRNT(osd_invariant(obj));
1651 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1652 struct lu_attr *attr,
1653 struct dt_allocation_hint *hint,
1654 struct dt_object_format *dof,
1658 struct osd_thandle *oth;
1659 struct osd_device *osd = osd_obj2dev(obj);
1660 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
1662 LASSERT(S_ISDIR(attr->la_mode));
1664 oth = container_of(th, struct osd_thandle, ot_super);
1665 LASSERT(oth->ot_handle->h_transaction != NULL);
1666 result = osd_mkfile(info, obj, mode, hint, th);
1667 if (result == 0 && osd->od_iop_mode == 0) {
1668 LASSERT(obj->oo_inode != NULL);
1670 * XXX uh-oh... call low-level iam function directly.
1673 result = iam_lvar_create(obj->oo_inode, OSD_NAME_LEN, 4,
1674 sizeof (struct osd_fid_pack),
1680 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
1681 struct lu_attr *attr,
1682 struct dt_allocation_hint *hint,
1683 struct dt_object_format *dof,
1687 struct osd_thandle *oth;
1688 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
1690 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
1692 LASSERT(S_ISREG(attr->la_mode));
1694 oth = container_of(th, struct osd_thandle, ot_super);
1695 LASSERT(oth->ot_handle->h_transaction != NULL);
1697 result = osd_mkfile(info, obj, mode, hint, th);
1699 LASSERT(obj->oo_inode != NULL);
1700 if (feat->dif_flags & DT_IND_VARKEY)
1701 result = iam_lvar_create(obj->oo_inode,
1702 feat->dif_keysize_max,
1704 feat->dif_recsize_max,
1707 result = iam_lfix_create(obj->oo_inode,
1708 feat->dif_keysize_max,
1710 feat->dif_recsize_max,
1717 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1718 struct lu_attr *attr,
1719 struct dt_allocation_hint *hint,
1720 struct dt_object_format *dof,
1723 LASSERT(S_ISREG(attr->la_mode));
1724 return osd_mkfile(info, obj, (attr->la_mode &
1725 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1728 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1729 struct lu_attr *attr,
1730 struct dt_allocation_hint *hint,
1731 struct dt_object_format *dof,
1734 LASSERT(S_ISLNK(attr->la_mode));
1735 return osd_mkfile(info, obj, (attr->la_mode &
1736 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1739 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1740 struct lu_attr *attr,
1741 struct dt_allocation_hint *hint,
1742 struct dt_object_format *dof,
1745 cfs_umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
1748 LINVRNT(osd_invariant(obj));
1749 LASSERT(obj->oo_inode == NULL);
1750 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1751 S_ISFIFO(mode) || S_ISSOCK(mode));
1753 result = osd_mkfile(info, obj, mode, hint, th);
1755 LASSERT(obj->oo_inode != NULL);
1757 * This inode should be marked dirty for i_rdev. Currently
1758 * that is done in the osd_attr_init().
1760 init_special_inode(obj->oo_inode, mode, attr->la_rdev);
1762 LINVRNT(osd_invariant(obj));
1766 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
1768 struct dt_allocation_hint *hint,
1769 struct dt_object_format *dof,
1772 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1774 osd_obj_type_f result;
1790 result = osd_mk_index;
1801 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1802 struct dt_object *parent, struct dt_object *child,
1803 cfs_umode_t child_mode)
1807 memset(ah, 0, sizeof(*ah));
1808 ah->dah_parent = parent;
1809 ah->dah_mode = child_mode;
1812 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
1813 struct lu_attr *attr, struct dt_object_format *dof)
1815 struct inode *inode = obj->oo_inode;
1816 __u64 valid = attr->la_valid;
1819 attr->la_valid &= ~(LA_TYPE | LA_MODE);
1821 if (dof->dof_type != DFT_NODE)
1822 attr->la_valid &= ~LA_RDEV;
1823 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
1824 attr->la_valid &= ~LA_ATIME;
1825 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
1826 attr->la_valid &= ~LA_CTIME;
1827 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
1828 attr->la_valid &= ~LA_MTIME;
1830 result = osd_quota_transfer(inode, attr);
1834 if (attr->la_valid != 0) {
1835 result = osd_inode_setattr(info->oti_env, inode, attr);
1837 * The osd_inode_setattr() should always succeed here. The
1838 * only error that could be returned is EDQUOT when we are
1839 * trying to change the UID or GID of the inode. However, this
1840 * should not happen since quota enforcement is no longer
1841 * enabled on ldiskfs (lquota takes care of it).
1843 LASSERTF(result == 0, "%d", result);
1844 inode->i_sb->s_op->dirty_inode(inode);
1847 attr->la_valid = valid;
1851 * Helper function for osd_object_create()
1853 * \retval 0, on success
1855 static int __osd_object_create(struct osd_thread_info *info,
1856 struct osd_object *obj, struct lu_attr *attr,
1857 struct dt_allocation_hint *hint,
1858 struct dt_object_format *dof,
1864 /* we drop umask so that permissions we pass are not affected */
1865 umask = current->fs->umask;
1866 current->fs->umask = 0;
1868 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
1871 osd_attr_init(info, obj, attr, dof);
1872 osd_object_init0(obj);
1874 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
1875 unlock_new_inode(obj->oo_inode);
1878 /* restore previous umask value */
1879 current->fs->umask = umask;
1885 * Helper function for osd_object_create()
1887 * \retval 0, on success
1889 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
1890 const struct lu_fid *fid, struct thandle *th)
1892 struct osd_thread_info *info = osd_oti_get(env);
1893 struct osd_inode_id *id = &info->oti_id;
1894 struct osd_device *osd = osd_obj2dev(obj);
1896 LASSERT(obj->oo_inode != NULL);
1898 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
1899 return osd_oi_insert(info, osd, fid, id, th);
1902 static int osd_declare_object_create(const struct lu_env *env,
1903 struct dt_object *dt,
1904 struct lu_attr *attr,
1905 struct dt_allocation_hint *hint,
1906 struct dt_object_format *dof,
1907 struct thandle *handle)
1909 struct osd_thandle *oh;
1913 LASSERT(handle != NULL);
1915 oh = container_of0(handle, struct osd_thandle, ot_super);
1916 LASSERT(oh->ot_handle == NULL);
1918 OSD_DECLARE_OP(oh, create);
1919 oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
1920 /* XXX: So far, only normal fid needs be inserted into the oi,
1921 * things could be changed later. Revise following code then. */
1922 if (fid_is_norm(lu_object_fid(&dt->do_lu))) {
1923 OSD_DECLARE_OP(oh, insert);
1924 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
1925 /* Reuse idle OI block may cause additional one OI block
1927 oh->ot_credits += 1;
1929 /* If this is directory, then we expect . and .. to be inserted as
1930 * well. The one directory block always needs to be created for the
1931 * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
1932 * block), there is no danger of needing a tree for the first block.
1934 if (attr && S_ISDIR(attr->la_mode)) {
1935 OSD_DECLARE_OP(oh, insert);
1936 OSD_DECLARE_OP(oh, insert);
1937 oh->ot_credits += osd_dto_credits_noquota[DTO_WRITE_BASE];
1943 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
1944 false, false, NULL, false);
1948 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1949 struct lu_attr *attr,
1950 struct dt_allocation_hint *hint,
1951 struct dt_object_format *dof,
1954 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1955 struct osd_object *obj = osd_dt_obj(dt);
1956 struct osd_thread_info *info = osd_oti_get(env);
1961 LINVRNT(osd_invariant(obj));
1962 LASSERT(!dt_object_exists(dt));
1963 LASSERT(osd_write_locked(env, obj));
1964 LASSERT(th != NULL);
1966 if (unlikely(fid_is_acct(fid)))
1967 /* Quota files can't be created from the kernel any more,
1968 * 'tune2fs -O quota' will take care of creating them */
1971 OSD_EXEC_OP(th, create);
1973 result = __osd_object_create(info, obj, attr, hint, dof, th);
1975 result = __osd_oi_insert(env, obj, fid, th);
1977 LASSERT(ergo(result == 0, dt_object_exists(dt)));
1978 LASSERT(osd_invariant(obj));
1983 * Called to destroy on-disk representation of the object
1985 * Concurrency: must be locked
1987 static int osd_declare_object_destroy(const struct lu_env *env,
1988 struct dt_object *dt,
1991 struct osd_object *obj = osd_dt_obj(dt);
1992 struct inode *inode = obj->oo_inode;
1993 struct osd_thandle *oh;
1997 oh = container_of0(th, struct osd_thandle, ot_super);
1998 LASSERT(oh->ot_handle == NULL);
2001 OSD_DECLARE_OP(oh, destroy);
2002 OSD_DECLARE_OP(oh, delete);
2003 oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_DELETE];
2004 /* XXX: So far, only normal fid needs to be inserted into the OI,
2005 * so only normal fid needs to be removed from the OI also. */
2006 if (fid_is_norm(lu_object_fid(&dt->do_lu))) {
2007 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2008 /* Recycle idle OI leaf may cause additional three OI blocks
2010 oh->ot_credits += 3;
2013 /* one less inode */
2014 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, -1, oh,
2015 false, true, NULL, false);
2018 /* data to be truncated */
2019 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh, true,
2024 static int osd_object_destroy(const struct lu_env *env,
2025 struct dt_object *dt,
2028 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2029 struct osd_object *obj = osd_dt_obj(dt);
2030 struct inode *inode = obj->oo_inode;
2031 struct osd_device *osd = osd_obj2dev(obj);
2032 struct osd_thandle *oh;
2036 oh = container_of0(th, struct osd_thandle, ot_super);
2037 LASSERT(oh->ot_handle);
2039 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2041 if (unlikely(fid_is_acct(fid)))
2044 /* Parallel control for OI scrub. For most of cases, there is no
2045 * lock contention. So it will not affect unlink performance. */
2046 cfs_mutex_lock(&inode->i_mutex);
2047 if (S_ISDIR(inode->i_mode)) {
2048 LASSERT(osd_inode_unlinked(inode) ||
2049 inode->i_nlink == 1);
2050 cfs_spin_lock(&obj->oo_guard);
2052 cfs_spin_unlock(&obj->oo_guard);
2053 inode->i_sb->s_op->dirty_inode(inode);
2055 LASSERT(osd_inode_unlinked(inode));
2058 OSD_EXEC_OP(th, destroy);
2060 result = osd_oi_delete(osd_oti_get(env), osd, fid, th);
2061 cfs_mutex_unlock(&inode->i_mutex);
2063 /* XXX: add to ext3 orphan list */
2064 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2066 /* not needed in the cache anymore */
2067 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2073 * Helper function for osd_xattr_set()
2075 static int __osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2076 const struct lu_buf *buf, const char *name, int fl)
2078 struct osd_object *obj = osd_dt_obj(dt);
2079 struct inode *inode = obj->oo_inode;
2080 struct osd_thread_info *info = osd_oti_get(env);
2081 struct dentry *dentry = &info->oti_child_dentry;
2085 LASSERT(dt_object_exists(dt));
2086 LASSERT(inode->i_op != NULL && inode->i_op->setxattr != NULL);
2088 if (fl & LU_XATTR_REPLACE)
2089 fs_flags |= XATTR_REPLACE;
2091 if (fl & LU_XATTR_CREATE)
2092 fs_flags |= XATTR_CREATE;
2094 dentry->d_inode = inode;
2095 rc = inode->i_op->setxattr(dentry, name, buf->lb_buf,
2096 buf->lb_len, fs_flags);
2101 * Put the fid into lustre_mdt_attrs, and then place the structure
2102 * inode's ea. This fid should not be altered during the life time
2105 * \retval +ve, on success
2106 * \retval -ve, on error
2108 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2110 static int osd_ea_fid_set(const struct lu_env *env, struct dt_object *dt,
2111 const struct lu_fid *fid)
2113 struct osd_thread_info *info = osd_oti_get(env);
2114 struct lustre_mdt_attrs *mdt_attrs = &info->oti_mdt_attrs;
2116 lustre_lma_init(mdt_attrs, fid);
2117 lustre_lma_swab(mdt_attrs);
2118 return __osd_xattr_set(env, dt,
2119 osd_buf_get(env, mdt_attrs, sizeof *mdt_attrs),
2120 XATTR_NAME_LMA, LU_XATTR_CREATE);
2125 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2126 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2127 * To have compatilibility with 1.8 ldiskfs driver we need to have
2128 * magic number at start of fid data.
2129 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2132 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2133 const struct dt_rec *fid)
2135 param->edp_magic = LDISKFS_LUFID_MAGIC;
2136 param->edp_len = sizeof(struct lu_fid) + 1;
2138 fid_cpu_to_be((struct lu_fid *)param->edp_data,
2139 (struct lu_fid *)fid);
2143 * Try to read the fid from inode ea into dt_rec, if return value
2144 * i.e. rc is +ve, then we got fid, otherwise we will have to form igif
2146 * \param fid object fid.
2148 * \retval 0 on success
2150 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2151 __u32 ino, struct lu_fid *fid,
2152 struct osd_inode_id *id)
2154 struct osd_thread_info *info = osd_oti_get(env);
2155 struct inode *inode;
2158 osd_id_gen(id, ino, OSD_OII_NOGEN);
2159 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2161 RETURN(PTR_ERR(inode));
2168 * OSD layer object create function for interoperability mode (b11826).
2169 * This is mostly similar to osd_object_create(). Only difference being, fid is
2170 * inserted into inode ea here.
2172 * \retval 0, on success
2173 * \retval -ve, on error
2175 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
2176 struct lu_attr *attr,
2177 struct dt_allocation_hint *hint,
2178 struct dt_object_format *dof,
2181 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2182 struct osd_object *obj = osd_dt_obj(dt);
2183 struct osd_thread_info *info = osd_oti_get(env);
2188 LASSERT(osd_invariant(obj));
2189 LASSERT(!dt_object_exists(dt));
2190 LASSERT(osd_write_locked(env, obj));
2191 LASSERT(th != NULL);
2193 if (unlikely(fid_is_acct(fid)))
2194 /* Quota files can't be created from the kernel any more,
2195 * 'tune2fs -O quota' will take care of creating them */
2198 OSD_EXEC_OP(th, create);
2200 result = __osd_object_create(info, obj, attr, hint, dof, th);
2201 /* objects under osd root shld have igif fid, so dont add fid EA */
2202 if (result == 0 && fid_seq(fid) >= FID_SEQ_NORMAL)
2203 result = osd_ea_fid_set(env, dt, fid);
2206 result = __osd_oi_insert(env, obj, fid, th);
2208 LASSERT(ergo(result == 0, dt_object_exists(dt)));
2209 LINVRNT(osd_invariant(obj));
2213 static int osd_declare_object_ref_add(const struct lu_env *env,
2214 struct dt_object *dt,
2215 struct thandle *handle)
2217 struct osd_thandle *oh;
2219 /* it's possible that object doesn't exist yet */
2220 LASSERT(handle != NULL);
2222 oh = container_of0(handle, struct osd_thandle, ot_super);
2223 LASSERT(oh->ot_handle == NULL);
2225 OSD_DECLARE_OP(oh, ref_add);
2226 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2232 * Concurrency: @dt is write locked.
2234 static int osd_object_ref_add(const struct lu_env *env,
2235 struct dt_object *dt, struct thandle *th)
2237 struct osd_object *obj = osd_dt_obj(dt);
2238 struct inode *inode = obj->oo_inode;
2240 LINVRNT(osd_invariant(obj));
2241 LASSERT(dt_object_exists(dt));
2242 LASSERT(osd_write_locked(env, obj));
2243 LASSERT(th != NULL);
2245 OSD_EXEC_OP(th, ref_add);
2248 * DIR_NLINK feature is set for compatibility reasons if:
2249 * 1) nlinks > LDISKFS_LINK_MAX, or
2250 * 2) nlinks == 2, since this indicates i_nlink was previously 1.
2252 * It is easier to always set this flag (rather than check and set),
2253 * since it has less overhead, and the superblock will be dirtied
2254 * at some point. Both e2fsprogs and any Lustre-supported ldiskfs
2255 * do not actually care whether this flag is set or not.
2257 cfs_spin_lock(&obj->oo_guard);
2259 if (S_ISDIR(inode->i_mode) && inode->i_nlink > 1) {
2260 if (inode->i_nlink >= LDISKFS_LINK_MAX ||
2261 inode->i_nlink == 2)
2264 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
2265 cfs_spin_unlock(&obj->oo_guard);
2266 inode->i_sb->s_op->dirty_inode(inode);
2267 LINVRNT(osd_invariant(obj));
2272 static int osd_declare_object_ref_del(const struct lu_env *env,
2273 struct dt_object *dt,
2274 struct thandle *handle)
2276 struct osd_thandle *oh;
2278 LASSERT(dt_object_exists(dt));
2279 LASSERT(handle != NULL);
2281 oh = container_of0(handle, struct osd_thandle, ot_super);
2282 LASSERT(oh->ot_handle == NULL);
2284 OSD_DECLARE_OP(oh, ref_del);
2285 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2291 * Concurrency: @dt is write locked.
2293 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2296 struct osd_object *obj = osd_dt_obj(dt);
2297 struct inode *inode = obj->oo_inode;
2299 LINVRNT(osd_invariant(obj));
2300 LASSERT(dt_object_exists(dt));
2301 LASSERT(osd_write_locked(env, obj));
2302 LASSERT(th != NULL);
2304 OSD_EXEC_OP(th, ref_del);
2306 cfs_spin_lock(&obj->oo_guard);
2307 LASSERT(inode->i_nlink > 0);
2309 /* If this is/was a many-subdir directory (nlink > LDISKFS_LINK_MAX)
2310 * then the nlink count is 1. Don't let it be set to 0 or the directory
2311 * inode will be deleted incorrectly. */
2312 if (S_ISDIR(inode->i_mode) && inode->i_nlink == 0)
2314 cfs_spin_unlock(&obj->oo_guard);
2315 inode->i_sb->s_op->dirty_inode(inode);
2316 LINVRNT(osd_invariant(obj));
2322 * Get the 64-bit version for an inode.
2324 static int osd_object_version_get(const struct lu_env *env,
2325 struct dt_object *dt, dt_obj_version_t *ver)
2327 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2329 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2330 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2331 *ver = LDISKFS_I(inode)->i_fs_version;
2336 * Concurrency: @dt is read locked.
2338 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2339 struct lu_buf *buf, const char *name,
2340 struct lustre_capa *capa)
2342 struct osd_object *obj = osd_dt_obj(dt);
2343 struct inode *inode = obj->oo_inode;
2344 struct osd_thread_info *info = osd_oti_get(env);
2345 struct dentry *dentry = &info->oti_obj_dentry;
2347 /* version get is not real XATTR but uses xattr API */
2348 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2349 /* for version we are just using xattr API but change inode
2351 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2352 osd_object_version_get(env, dt, buf->lb_buf);
2353 return sizeof(dt_obj_version_t);
2356 LASSERT(dt_object_exists(dt));
2357 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
2359 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2362 dentry->d_inode = inode;
2363 return inode->i_op->getxattr(dentry, name, buf->lb_buf, buf->lb_len);
2367 static int osd_declare_xattr_set(const struct lu_env *env,
2368 struct dt_object *dt,
2369 const struct lu_buf *buf, const char *name,
2370 int fl, struct thandle *handle)
2372 struct osd_thandle *oh;
2374 LASSERT(handle != NULL);
2376 oh = container_of0(handle, struct osd_thandle, ot_super);
2377 LASSERT(oh->ot_handle == NULL);
2379 OSD_DECLARE_OP(oh, xattr_set);
2380 if (strcmp(name, XATTR_NAME_VERSION) == 0)
2381 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2383 oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2389 * Set the 64-bit version for object
2391 static void osd_object_version_set(const struct lu_env *env,
2392 struct dt_object *dt,
2393 dt_obj_version_t *new_version)
2395 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2397 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
2398 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2400 LDISKFS_I(inode)->i_fs_version = *new_version;
2401 /** Version is set after all inode operations are finished,
2402 * so we should mark it dirty here */
2403 inode->i_sb->s_op->dirty_inode(inode);
2407 * Concurrency: @dt is write locked.
2409 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2410 const struct lu_buf *buf, const char *name, int fl,
2411 struct thandle *handle, struct lustre_capa *capa)
2413 LASSERT(handle != NULL);
2415 /* version set is not real XATTR */
2416 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2417 /* for version we are just using xattr API but change inode
2419 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2420 osd_object_version_set(env, dt, buf->lb_buf);
2421 return sizeof(dt_obj_version_t);
2424 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2427 OSD_EXEC_OP(handle, xattr_set);
2428 return __osd_xattr_set(env, dt, buf, name, fl);
2432 * Concurrency: @dt is read locked.
2434 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
2435 struct lu_buf *buf, struct lustre_capa *capa)
2437 struct osd_object *obj = osd_dt_obj(dt);
2438 struct inode *inode = obj->oo_inode;
2439 struct osd_thread_info *info = osd_oti_get(env);
2440 struct dentry *dentry = &info->oti_obj_dentry;
2442 LASSERT(dt_object_exists(dt));
2443 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
2444 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
2446 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2449 dentry->d_inode = inode;
2450 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
2453 static int osd_declare_xattr_del(const struct lu_env *env,
2454 struct dt_object *dt, const char *name,
2455 struct thandle *handle)
2457 struct osd_thandle *oh;
2459 LASSERT(dt_object_exists(dt));
2460 LASSERT(handle != NULL);
2462 oh = container_of0(handle, struct osd_thandle, ot_super);
2463 LASSERT(oh->ot_handle == NULL);
2465 OSD_DECLARE_OP(oh, xattr_set);
2466 oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2472 * Concurrency: @dt is write locked.
2474 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
2475 const char *name, struct thandle *handle,
2476 struct lustre_capa *capa)
2478 struct osd_object *obj = osd_dt_obj(dt);
2479 struct inode *inode = obj->oo_inode;
2480 struct osd_thread_info *info = osd_oti_get(env);
2481 struct dentry *dentry = &info->oti_obj_dentry;
2484 LASSERT(dt_object_exists(dt));
2485 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
2486 LASSERT(osd_write_locked(env, obj));
2487 LASSERT(handle != NULL);
2489 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2492 OSD_EXEC_OP(handle, xattr_set);
2494 dentry->d_inode = inode;
2495 rc = inode->i_op->removexattr(dentry, name);
2499 static struct obd_capa *osd_capa_get(const struct lu_env *env,
2500 struct dt_object *dt,
2501 struct lustre_capa *old,
2504 struct osd_thread_info *info = osd_oti_get(env);
2505 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2506 struct osd_object *obj = osd_dt_obj(dt);
2507 struct osd_device *dev = osd_obj2dev(obj);
2508 struct lustre_capa_key *key = &info->oti_capa_key;
2509 struct lustre_capa *capa = &info->oti_capa;
2510 struct obd_capa *oc;
2511 struct md_capainfo *ci;
2515 if (!dev->od_fl_capa)
2516 RETURN(ERR_PTR(-ENOENT));
2518 LASSERT(dt_object_exists(dt));
2519 LINVRNT(osd_invariant(obj));
2521 /* renewal sanity check */
2522 if (old && osd_object_auth(env, dt, old, opc))
2523 RETURN(ERR_PTR(-EACCES));
2525 ci = md_capainfo(env);
2527 RETURN(ERR_PTR(-ENOENT));
2529 switch (ci->mc_auth) {
2533 capa->lc_uid = obj->oo_inode->i_uid;
2534 capa->lc_gid = obj->oo_inode->i_gid;
2535 capa->lc_flags = LC_ID_PLAIN;
2537 case LC_ID_CONVERT: {
2540 s[0] = obj->oo_inode->i_uid;
2541 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
2542 s[2] = obj->oo_inode->i_gid;
2543 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
2544 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
2546 RETURN(ERR_PTR(rc));
2548 capa->lc_uid = ((__u64)d[1] << 32) | d[0];
2549 capa->lc_gid = ((__u64)d[3] << 32) | d[2];
2550 capa->lc_flags = LC_ID_CONVERT;
2554 RETURN(ERR_PTR(-EINVAL));
2557 capa->lc_fid = *fid;
2559 capa->lc_flags |= dev->od_capa_alg << 24;
2560 capa->lc_timeout = dev->od_capa_timeout;
2561 capa->lc_expiry = 0;
2563 oc = capa_lookup(dev->od_capa_hash, capa, 1);
2565 LASSERT(!capa_is_expired(oc));
2569 cfs_spin_lock(&capa_lock);
2570 *key = dev->od_capa_keys[1];
2571 cfs_spin_unlock(&capa_lock);
2573 capa->lc_keyid = key->lk_keyid;
2574 capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
2576 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
2578 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
2579 RETURN(ERR_PTR(rc));
2582 oc = capa_add(dev->od_capa_hash, capa);
2586 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
2588 struct osd_object *obj = osd_dt_obj(dt);
2589 struct inode *inode = obj->oo_inode;
2590 struct osd_thread_info *info = osd_oti_get(env);
2591 struct dentry *dentry = &info->oti_obj_dentry;
2592 struct file *file = &info->oti_file;
2597 dentry->d_inode = inode;
2598 file->f_dentry = dentry;
2599 file->f_mapping = inode->i_mapping;
2600 file->f_op = inode->i_fop;
2601 mutex_lock(&inode->i_mutex);
2602 rc = file->f_op->fsync(file, dentry, 0);
2603 mutex_unlock(&inode->i_mutex);
2607 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
2610 struct osd_object *obj = osd_dt_obj(dt);
2613 *data = (void *)obj->oo_inode;
2621 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
2622 const struct dt_index_features *feat)
2624 struct iam_descr *descr;
2626 if (osd_object_is_root(o))
2627 return feat == &dt_directory_features;
2629 LASSERT(o->oo_dir != NULL);
2631 descr = o->oo_dir->od_container.ic_descr;
2632 if (feat == &dt_directory_features) {
2633 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
2639 feat->dif_keysize_min <= descr->id_key_size &&
2640 descr->id_key_size <= feat->dif_keysize_max &&
2641 feat->dif_recsize_min <= descr->id_rec_size &&
2642 descr->id_rec_size <= feat->dif_recsize_max &&
2643 !(feat->dif_flags & (DT_IND_VARKEY |
2644 DT_IND_VARREC | DT_IND_NONUNQ)) &&
2645 ergo(feat->dif_flags & DT_IND_UPDATE,
2646 1 /* XXX check that object (and file system) is
2651 static int osd_iam_container_init(const struct lu_env *env,
2652 struct osd_object *obj,
2653 struct osd_directory *dir)
2655 struct iam_container *bag = &dir->od_container;
2658 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
2662 result = iam_container_setup(bag);
2664 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
2666 iam_container_fini(bag);
2673 * Concurrency: no external locking is necessary.
2675 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
2676 const struct dt_index_features *feat)
2680 struct osd_object *obj = osd_dt_obj(dt);
2681 struct osd_device *osd = osd_obj2dev(obj);
2683 LINVRNT(osd_invariant(obj));
2684 LASSERT(dt_object_exists(dt));
2686 if (osd_object_is_root(obj)) {
2687 dt->do_index_ops = &osd_index_ea_ops;
2689 } else if (feat == &dt_directory_features && osd->od_iop_mode) {
2690 dt->do_index_ops = &osd_index_ea_ops;
2691 if (S_ISDIR(obj->oo_inode->i_mode))
2696 } else if (unlikely(feat == &dt_otable_features)) {
2697 dt->do_index_ops = &osd_otable_ops;
2699 } else if (feat == &dt_acct_features) {
2700 dt->do_index_ops = &osd_acct_index_ops;
2703 } else if (!osd_has_index(obj)) {
2704 struct osd_directory *dir;
2709 cfs_spin_lock(&obj->oo_guard);
2710 if (obj->oo_dir == NULL)
2714 * Concurrent thread allocated container data.
2717 cfs_spin_unlock(&obj->oo_guard);
2719 * Now, that we have container data, serialize its
2722 cfs_down_write(&obj->oo_ext_idx_sem);
2724 * recheck under lock.
2726 if (!osd_has_index(obj))
2727 result = osd_iam_container_init(env, obj, dir);
2730 cfs_up_write(&obj->oo_ext_idx_sem);
2738 if (result == 0 && skip_iam == 0) {
2739 if (!osd_iam_index_probe(env, obj, feat))
2742 LINVRNT(osd_invariant(obj));
2744 if (is_quota_glb_feat(feat))
2745 result = osd_quota_migration(env, dt, feat);
2750 static int osd_otable_it_attr_get(const struct lu_env *env,
2751 struct dt_object *dt,
2752 struct lu_attr *attr,
2753 struct lustre_capa *capa)
2759 static const struct dt_object_operations osd_obj_ops = {
2760 .do_read_lock = osd_object_read_lock,
2761 .do_write_lock = osd_object_write_lock,
2762 .do_read_unlock = osd_object_read_unlock,
2763 .do_write_unlock = osd_object_write_unlock,
2764 .do_write_locked = osd_object_write_locked,
2765 .do_attr_get = osd_attr_get,
2766 .do_declare_attr_set = osd_declare_attr_set,
2767 .do_attr_set = osd_attr_set,
2768 .do_ah_init = osd_ah_init,
2769 .do_declare_create = osd_declare_object_create,
2770 .do_create = osd_object_create,
2771 .do_declare_destroy = osd_declare_object_destroy,
2772 .do_destroy = osd_object_destroy,
2773 .do_index_try = osd_index_try,
2774 .do_declare_ref_add = osd_declare_object_ref_add,
2775 .do_ref_add = osd_object_ref_add,
2776 .do_declare_ref_del = osd_declare_object_ref_del,
2777 .do_ref_del = osd_object_ref_del,
2778 .do_xattr_get = osd_xattr_get,
2779 .do_declare_xattr_set = osd_declare_xattr_set,
2780 .do_xattr_set = osd_xattr_set,
2781 .do_declare_xattr_del = osd_declare_xattr_del,
2782 .do_xattr_del = osd_xattr_del,
2783 .do_xattr_list = osd_xattr_list,
2784 .do_capa_get = osd_capa_get,
2785 .do_object_sync = osd_object_sync,
2786 .do_data_get = osd_data_get,
2790 * dt_object_operations for interoperability mode
2791 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
2793 static const struct dt_object_operations osd_obj_ea_ops = {
2794 .do_read_lock = osd_object_read_lock,
2795 .do_write_lock = osd_object_write_lock,
2796 .do_read_unlock = osd_object_read_unlock,
2797 .do_write_unlock = osd_object_write_unlock,
2798 .do_write_locked = osd_object_write_locked,
2799 .do_attr_get = osd_attr_get,
2800 .do_declare_attr_set = osd_declare_attr_set,
2801 .do_attr_set = osd_attr_set,
2802 .do_ah_init = osd_ah_init,
2803 .do_declare_create = osd_declare_object_create,
2804 .do_create = osd_object_ea_create,
2805 .do_declare_destroy = osd_declare_object_destroy,
2806 .do_destroy = osd_object_destroy,
2807 .do_index_try = osd_index_try,
2808 .do_declare_ref_add = osd_declare_object_ref_add,
2809 .do_ref_add = osd_object_ref_add,
2810 .do_declare_ref_del = osd_declare_object_ref_del,
2811 .do_ref_del = osd_object_ref_del,
2812 .do_xattr_get = osd_xattr_get,
2813 .do_declare_xattr_set = osd_declare_xattr_set,
2814 .do_xattr_set = osd_xattr_set,
2815 .do_declare_xattr_del = osd_declare_xattr_del,
2816 .do_xattr_del = osd_xattr_del,
2817 .do_xattr_list = osd_xattr_list,
2818 .do_capa_get = osd_capa_get,
2819 .do_object_sync = osd_object_sync,
2820 .do_data_get = osd_data_get,
2823 static const struct dt_object_operations osd_obj_otable_it_ops = {
2824 .do_attr_get = osd_otable_it_attr_get,
2825 .do_index_try = osd_index_try,
2828 static int osd_index_declare_iam_delete(const struct lu_env *env,
2829 struct dt_object *dt,
2830 const struct dt_key *key,
2831 struct thandle *handle)
2833 struct osd_thandle *oh;
2835 oh = container_of0(handle, struct osd_thandle, ot_super);
2836 LASSERT(oh->ot_handle == NULL);
2838 OSD_DECLARE_OP(oh, delete);
2839 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2845 * delete a (key, value) pair from index \a dt specified by \a key
2847 * \param dt osd index object
2848 * \param key key for index
2849 * \param rec record reference
2850 * \param handle transaction handler
2853 * \retval -ve failure
2856 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
2857 const struct dt_key *key,
2858 struct thandle *handle,
2859 struct lustre_capa *capa)
2861 struct osd_thread_info *oti = osd_oti_get(env);
2862 struct osd_object *obj = osd_dt_obj(dt);
2863 struct osd_thandle *oh;
2864 struct iam_path_descr *ipd;
2865 struct iam_container *bag = &obj->oo_dir->od_container;
2870 LINVRNT(osd_invariant(obj));
2871 LASSERT(dt_object_exists(dt));
2872 LASSERT(bag->ic_object == obj->oo_inode);
2873 LASSERT(handle != NULL);
2875 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2878 OSD_EXEC_OP(handle, delete);
2880 ipd = osd_idx_ipd_get(env, bag);
2881 if (unlikely(ipd == NULL))
2884 oh = container_of0(handle, struct osd_thandle, ot_super);
2885 LASSERT(oh->ot_handle != NULL);
2886 LASSERT(oh->ot_handle->h_transaction != NULL);
2888 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
2889 /* swab quota uid/gid provided by caller */
2890 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
2891 key = (const struct dt_key *)&oti->oti_quota_id;
2894 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
2895 osd_ipd_put(env, bag, ipd);
2896 LINVRNT(osd_invariant(obj));
2900 static int osd_index_declare_ea_delete(const struct lu_env *env,
2901 struct dt_object *dt,
2902 const struct dt_key *key,
2903 struct thandle *handle)
2905 struct osd_thandle *oh;
2906 struct inode *inode;
2910 LASSERT(dt_object_exists(dt));
2911 LASSERT(handle != NULL);
2913 oh = container_of0(handle, struct osd_thandle, ot_super);
2914 LASSERT(oh->ot_handle == NULL);
2916 OSD_DECLARE_OP(oh, delete);
2917 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2919 inode = osd_dt_obj(dt)->oo_inode;
2922 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
2923 true, true, NULL, false);
2927 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
2930 struct osd_fid_pack *rec;
2933 if (de->file_type & LDISKFS_DIRENT_LUFID) {
2934 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
2935 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
2941 * Index delete function for interoperability mode (b11826).
2942 * It will remove the directory entry added by osd_index_ea_insert().
2943 * This entry is needed to maintain name->fid mapping.
2945 * \param key, key i.e. file entry to be deleted
2947 * \retval 0, on success
2948 * \retval -ve, on error
2950 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
2951 const struct dt_key *key,
2952 struct thandle *handle,
2953 struct lustre_capa *capa)
2955 struct osd_object *obj = osd_dt_obj(dt);
2956 struct inode *dir = obj->oo_inode;
2957 struct dentry *dentry;
2958 struct osd_thandle *oh;
2959 struct ldiskfs_dir_entry_2 *de;
2960 struct buffer_head *bh;
2961 struct htree_lock *hlock = NULL;
2966 LINVRNT(osd_invariant(obj));
2967 LASSERT(dt_object_exists(dt));
2968 LASSERT(handle != NULL);
2970 OSD_EXEC_OP(handle, delete);
2972 oh = container_of(handle, struct osd_thandle, ot_super);
2973 LASSERT(oh->ot_handle != NULL);
2974 LASSERT(oh->ot_handle->h_transaction != NULL);
2976 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2979 dentry = osd_child_dentry_get(env, obj,
2980 (char *)key, strlen((char *)key));
2982 if (obj->oo_hl_head != NULL) {
2983 hlock = osd_oti_get(env)->oti_hlock;
2984 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
2985 dir, LDISKFS_HLOCK_DEL);
2987 cfs_down_write(&obj->oo_ext_idx_sem);
2990 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
2992 rc = ldiskfs_delete_entry(oh->ot_handle,
2999 ldiskfs_htree_unlock(hlock);
3001 cfs_up_write(&obj->oo_ext_idx_sem);
3003 LASSERT(osd_invariant(obj));
3008 * Lookup index for \a key and copy record to \a rec.
3010 * \param dt osd index object
3011 * \param key key for index
3012 * \param rec record reference
3014 * \retval +ve success : exact mach
3015 * \retval 0 return record with key not greater than \a key
3016 * \retval -ve failure
3018 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
3019 struct dt_rec *rec, const struct dt_key *key,
3020 struct lustre_capa *capa)
3022 struct osd_object *obj = osd_dt_obj(dt);
3023 struct iam_path_descr *ipd;
3024 struct iam_container *bag = &obj->oo_dir->od_container;
3025 struct osd_thread_info *oti = osd_oti_get(env);
3026 struct iam_iterator *it = &oti->oti_idx_it;
3027 struct iam_rec *iam_rec;
3032 LASSERT(osd_invariant(obj));
3033 LASSERT(dt_object_exists(dt));
3034 LASSERT(bag->ic_object == obj->oo_inode);
3036 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3039 ipd = osd_idx_ipd_get(env, bag);
3043 /* got ipd now we can start iterator. */
3044 iam_it_init(it, bag, 0, ipd);
3046 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3047 /* swab quota uid/gid provided by caller */
3048 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3049 key = (const struct dt_key *)&oti->oti_quota_id;
3052 rc = iam_it_get(it, (struct iam_key *)key);
3054 if (S_ISDIR(obj->oo_inode->i_mode))
3055 iam_rec = (struct iam_rec *)oti->oti_ldp;
3057 iam_rec = (struct iam_rec *) rec;
3059 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
3061 if (S_ISDIR(obj->oo_inode->i_mode))
3062 osd_fid_unpack((struct lu_fid *) rec,
3063 (struct osd_fid_pack *)iam_rec);
3064 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
3065 osd_quota_unpack(obj, rec);
3070 osd_ipd_put(env, bag, ipd);
3072 LINVRNT(osd_invariant(obj));
3077 static int osd_index_declare_iam_insert(const struct lu_env *env,
3078 struct dt_object *dt,
3079 const struct dt_rec *rec,
3080 const struct dt_key *key,
3081 struct thandle *handle)
3083 struct osd_thandle *oh;
3085 LASSERT(dt_object_exists(dt));
3086 LASSERT(handle != NULL);
3088 oh = container_of0(handle, struct osd_thandle, ot_super);
3089 LASSERT(oh->ot_handle == NULL);
3091 OSD_DECLARE_OP(oh, insert);
3092 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
3098 * Inserts (key, value) pair in \a dt index object.
3100 * \param dt osd index object
3101 * \param key key for index
3102 * \param rec record reference
3103 * \param th transaction handler
3106 * \retval -ve failure
3108 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
3109 const struct dt_rec *rec,
3110 const struct dt_key *key, struct thandle *th,
3111 struct lustre_capa *capa, int ignore_quota)
3113 struct osd_object *obj = osd_dt_obj(dt);
3114 struct iam_path_descr *ipd;
3115 struct osd_thandle *oh;
3116 struct iam_container *bag = &obj->oo_dir->od_container;
3117 struct osd_thread_info *oti = osd_oti_get(env);
3118 struct iam_rec *iam_rec;
3123 LINVRNT(osd_invariant(obj));
3124 LASSERT(dt_object_exists(dt));
3125 LASSERT(bag->ic_object == obj->oo_inode);
3126 LASSERT(th != NULL);
3128 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3131 OSD_EXEC_OP(th, insert);
3133 ipd = osd_idx_ipd_get(env, bag);
3134 if (unlikely(ipd == NULL))
3137 oh = container_of0(th, struct osd_thandle, ot_super);
3138 LASSERT(oh->ot_handle != NULL);
3139 LASSERT(oh->ot_handle->h_transaction != NULL);
3140 if (S_ISDIR(obj->oo_inode->i_mode)) {
3141 iam_rec = (struct iam_rec *)oti->oti_ldp;
3142 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
3143 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3144 /* pack quota uid/gid */
3145 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3146 key = (const struct dt_key *)&oti->oti_quota_id;
3147 /* pack quota record */
3148 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
3149 iam_rec = (struct iam_rec *)rec;
3151 iam_rec = (struct iam_rec *)rec;
3154 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
3156 osd_ipd_put(env, bag, ipd);
3157 LINVRNT(osd_invariant(obj));
3162 * Calls ldiskfs_add_entry() to add directory entry
3163 * into the directory. This is required for
3164 * interoperability mode (b11826)
3166 * \retval 0, on success
3167 * \retval -ve, on error
3169 static int __osd_ea_add_rec(struct osd_thread_info *info,
3170 struct osd_object *pobj, struct inode *cinode,
3171 const char *name, const struct dt_rec *fid,
3172 struct htree_lock *hlock, struct thandle *th)
3174 struct ldiskfs_dentry_param *ldp;
3175 struct dentry *child;
3176 struct osd_thandle *oth;
3179 oth = container_of(th, struct osd_thandle, ot_super);
3180 LASSERT(oth->ot_handle != NULL);
3181 LASSERT(oth->ot_handle->h_transaction != NULL);
3183 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
3185 /* XXX: remove fid_is_igif() check here.
3186 * IGIF check is just to handle insertion of .. when it is 'ROOT',
3187 * it is IGIF now but needs FID in dir entry as well for readdir
3189 * LU-838 should fix that and remove fid_is_igif() check */
3190 if (fid_is_igif((struct lu_fid *)fid) ||
3191 fid_is_norm((struct lu_fid *)fid)) {
3192 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3193 osd_get_ldiskfs_dirent_param(ldp, fid);
3194 child->d_fsdata = (void *)ldp;
3196 child->d_fsdata = NULL;
3198 rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
3204 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
3205 * into the directory.Also sets flags into osd object to
3206 * indicate dot and dotdot are created. This is required for
3207 * interoperability mode (b11826)
3209 * \param dir directory for dot and dotdot fixup.
3210 * \param obj child object for linking
3212 * \retval 0, on success
3213 * \retval -ve, on error
3215 static int osd_add_dot_dotdot(struct osd_thread_info *info,
3216 struct osd_object *dir,
3217 struct inode *parent_dir, const char *name,
3218 const struct dt_rec *dot_fid,
3219 const struct dt_rec *dot_dot_fid,
3222 struct inode *inode = dir->oo_inode;
3223 struct ldiskfs_dentry_param *dot_ldp;
3224 struct ldiskfs_dentry_param *dot_dot_ldp;
3225 struct osd_thandle *oth;
3228 oth = container_of(th, struct osd_thandle, ot_super);
3229 LASSERT(oth->ot_handle->h_transaction != NULL);
3230 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
3232 if (strcmp(name, dot) == 0) {
3233 if (dir->oo_compat_dot_created) {
3236 LASSERT(inode == parent_dir);
3237 dir->oo_compat_dot_created = 1;
3240 } else if(strcmp(name, dotdot) == 0) {
3241 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3242 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3244 if (!dir->oo_compat_dot_created)
3246 if (!fid_is_igif((struct lu_fid *)dot_fid)) {
3247 osd_get_ldiskfs_dirent_param(dot_ldp, dot_fid);
3248 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3253 /* in case of rename, dotdot is already created */
3254 if (dir->oo_compat_dotdot_created) {
3255 return __osd_ea_add_rec(info, dir, parent_dir, name,
3256 dot_dot_fid, NULL, th);
3259 result = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3260 inode, dot_ldp, dot_dot_ldp);
3262 dir->oo_compat_dotdot_created = 1;
3270 * It will call the appropriate osd_add* function and return the
3271 * value, return by respective functions.
3273 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
3274 struct inode *cinode, const char *name,
3275 const struct dt_rec *fid, struct thandle *th)
3277 struct osd_thread_info *info = osd_oti_get(env);
3278 struct htree_lock *hlock;
3281 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
3283 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
3285 if (hlock != NULL) {
3286 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3289 cfs_down_write(&pobj->oo_ext_idx_sem);
3291 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
3292 (struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
3295 if (hlock != NULL) {
3296 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3297 pobj->oo_inode, LDISKFS_HLOCK_ADD);
3299 cfs_down_write(&pobj->oo_ext_idx_sem);
3302 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
3306 ldiskfs_htree_unlock(hlock);
3308 cfs_up_write(&pobj->oo_ext_idx_sem);
3314 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
3315 struct osd_idmap_cache *oic)
3317 struct osd_scrub *scrub = &dev->od_scrub;
3318 struct lu_fid *fid = &oic->oic_fid;
3319 struct osd_inode_id *id = &oti->oti_id;
3325 rc = osd_oi_lookup(oti, dev, fid, id);
3326 if (rc != 0 && rc != -ENOENT)
3329 if (rc == 0 && osd_id_eq(id, &oic->oic_lid))
3332 if (thread_is_running(&scrub->os_thread)) {
3333 rc = osd_oii_insert(dev, oic, rc == -ENOENT);
3334 /* There is race condition between osd_oi_lookup and OI scrub.
3335 * The OI scrub finished just after osd_oi_lookup() failure.
3336 * Under such case, it is unnecessary to trigger OI scrub again,
3337 * but try to call osd_oi_lookup() again. */
3338 if (unlikely(rc == -EAGAIN))
3344 if (!scrub->os_no_scrub && ++once == 1) {
3345 CDEBUG(D_LFSCK, "Trigger OI scrub by RPC for "DFID"\n",
3347 rc = osd_scrub_start(dev);
3348 LCONSOLE_ERROR("%.16s: trigger OI scrub by RPC for "DFID
3350 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
3356 RETURN(rc = -EREMCHG);
3360 * Calls ->lookup() to find dentry. From dentry get inode and
3361 * read inode's ea to get fid. This is required for interoperability
3364 * \retval 0, on success
3365 * \retval -ve, on error
3367 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
3368 struct dt_rec *rec, const struct dt_key *key)
3370 struct inode *dir = obj->oo_inode;
3371 struct dentry *dentry;
3372 struct ldiskfs_dir_entry_2 *de;
3373 struct buffer_head *bh;
3374 struct lu_fid *fid = (struct lu_fid *) rec;
3375 struct htree_lock *hlock = NULL;
3379 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
3381 dentry = osd_child_dentry_get(env, obj,
3382 (char *)key, strlen((char *)key));
3384 if (obj->oo_hl_head != NULL) {
3385 hlock = osd_oti_get(env)->oti_hlock;
3386 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3387 dir, LDISKFS_HLOCK_LOOKUP);
3389 cfs_down_read(&obj->oo_ext_idx_sem);
3392 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
3394 struct osd_thread_info *oti = osd_oti_get(env);
3395 struct osd_idmap_cache *oic = &oti->oti_cache;
3396 struct osd_device *dev = osd_obj2dev(obj);
3397 struct osd_scrub *scrub = &dev->od_scrub;
3398 struct scrub_file *sf = &scrub->os_file;
3400 ino = le32_to_cpu(de->inode);
3401 rc = osd_get_fid_from_dentry(de, rec);
3403 /* done with de, release bh */
3406 rc = osd_ea_fid_get(env, obj, ino, fid, &oic->oic_lid);
3408 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
3409 if (rc != 0 || !fid_is_norm(fid)) {
3410 fid_zero(&oic->oic_fid);
3414 oic->oic_fid = *fid;
3415 if ((scrub->os_pos_current <= ino) &&
3416 (sf->sf_flags & SF_INCONSISTENT ||
3417 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
3419 rc = osd_consistency_check(oti, dev, oic);
3428 ldiskfs_htree_unlock(hlock);
3430 cfs_up_read(&obj->oo_ext_idx_sem);
3435 * Find the osd object for given fid.
3437 * \param fid need to find the osd object having this fid
3439 * \retval osd_object on success
3440 * \retval -ve on error
3442 struct osd_object *osd_object_find(const struct lu_env *env,
3443 struct dt_object *dt,
3444 const struct lu_fid *fid)
3446 struct lu_device *ludev = dt->do_lu.lo_dev;
3447 struct osd_object *child = NULL;
3448 struct lu_object *luch;
3449 struct lu_object *lo;
3452 * at this point topdev might not exist yet
3453 * (i.e. MGS is preparing profiles). so we can
3454 * not rely on topdev and instead lookup with
3455 * our device passed as topdev. this can't work
3456 * if the object isn't cached yet (as osd doesn't
3457 * allocate lu_header). IOW, the object must be
3458 * in the cache, otherwise lu_object_alloc() crashes
3461 luch = lu_object_find_at(env, ludev, fid, NULL);
3462 if (!IS_ERR(luch)) {
3463 if (lu_object_exists(luch)) {
3464 lo = lu_object_locate(luch->lo_header, ludev->ld_type);
3466 child = osd_obj(lo);
3468 LU_OBJECT_DEBUG(D_ERROR, env, luch,
3469 "lu_object can't be located"
3470 DFID"\n", PFID(fid));
3472 if (child == NULL) {
3473 lu_object_put(env, luch);
3474 CERROR("Unable to get osd_object\n");
3475 child = ERR_PTR(-ENOENT);
3478 LU_OBJECT_DEBUG(D_ERROR, env, luch,
3479 "lu_object does not exists "DFID"\n",
3481 lu_object_put(env, luch);
3482 child = ERR_PTR(-ENOENT);
3485 child = (void *)luch;
3491 * Put the osd object once done with it.
3493 * \param obj osd object that needs to be put
3495 static inline void osd_object_put(const struct lu_env *env,
3496 struct osd_object *obj)
3498 lu_object_put(env, &obj->oo_dt.do_lu);
3501 static int osd_index_declare_ea_insert(const struct lu_env *env,
3502 struct dt_object *dt,
3503 const struct dt_rec *rec,
3504 const struct dt_key *key,
3505 struct thandle *handle)
3507 struct osd_thandle *oh;
3508 struct inode *inode;
3512 LASSERT(dt_object_exists(dt));
3513 LASSERT(handle != NULL);
3515 oh = container_of0(handle, struct osd_thandle, ot_super);
3516 LASSERT(oh->ot_handle == NULL);
3518 OSD_DECLARE_OP(oh, insert);
3519 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
3521 inode = osd_dt_obj(dt)->oo_inode;
3524 /* We ignore block quota on meta pool (MDTs), so needn't
3525 * calculate how many blocks will be consumed by this index
3527 rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
3528 true, true, NULL, false);
3533 * Index add function for interoperability mode (b11826).
3534 * It will add the directory entry.This entry is needed to
3535 * maintain name->fid mapping.
3537 * \param key it is key i.e. file entry to be inserted
3538 * \param rec it is value of given key i.e. fid
3540 * \retval 0, on success
3541 * \retval -ve, on error
3543 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
3544 const struct dt_rec *rec,
3545 const struct dt_key *key, struct thandle *th,
3546 struct lustre_capa *capa, int ignore_quota)
3548 struct osd_object *obj = osd_dt_obj(dt);
3549 struct lu_fid *fid = (struct lu_fid *) rec;
3550 const char *name = (const char *)key;
3551 struct osd_object *child;
3556 LASSERT(osd_invariant(obj));
3557 LASSERT(dt_object_exists(dt));
3558 LASSERT(th != NULL);
3560 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3563 child = osd_object_find(env, dt, fid);
3564 if (!IS_ERR(child)) {
3565 rc = osd_ea_add_rec(env, obj, child->oo_inode, name, rec, th);
3566 osd_object_put(env, child);
3568 rc = PTR_ERR(child);
3571 LASSERT(osd_invariant(obj));
3576 * Initialize osd Iterator for given osd index object.
3578 * \param dt osd index object
3581 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
3582 struct dt_object *dt,
3584 struct lustre_capa *capa)
3586 struct osd_it_iam *it;
3587 struct osd_thread_info *oti = osd_oti_get(env);
3588 struct osd_object *obj = osd_dt_obj(dt);
3589 struct lu_object *lo = &dt->do_lu;
3590 struct iam_path_descr *ipd;
3591 struct iam_container *bag = &obj->oo_dir->od_container;
3593 LASSERT(lu_object_exists(lo));
3595 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
3596 return ERR_PTR(-EACCES);
3599 ipd = osd_it_ipd_get(env, bag);
3600 if (likely(ipd != NULL)) {
3604 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
3605 return (struct dt_it *)it;
3607 return ERR_PTR(-ENOMEM);
3611 * free given Iterator.
3614 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
3616 struct osd_it_iam *it = (struct osd_it_iam *)di;
3617 struct osd_object *obj = it->oi_obj;
3619 iam_it_fini(&it->oi_it);
3620 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
3621 lu_object_put(env, &obj->oo_dt.do_lu);
3625 * Move Iterator to record specified by \a key
3627 * \param di osd iterator
3628 * \param key key for index
3630 * \retval +ve di points to record with least key not larger than key
3631 * \retval 0 di points to exact matched key
3632 * \retval -ve failure
3635 static int osd_it_iam_get(const struct lu_env *env,
3636 struct dt_it *di, const struct dt_key *key)
3638 struct osd_thread_info *oti = osd_oti_get(env);
3639 struct osd_it_iam *it = (struct osd_it_iam *)di;
3641 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
3642 /* swab quota uid/gid */
3643 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3644 key = (struct dt_key *)&oti->oti_quota_id;
3647 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
3653 * \param di osd iterator
3656 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
3658 struct osd_it_iam *it = (struct osd_it_iam *)di;
3660 iam_it_put(&it->oi_it);
3664 * Move iterator by one record
3666 * \param di osd iterator
3668 * \retval +1 end of container reached
3670 * \retval -ve failure
3673 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
3675 struct osd_it_iam *it = (struct osd_it_iam *)di;
3677 return iam_it_next(&it->oi_it);
3681 * Return pointer to the key under iterator.
3684 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
3685 const struct dt_it *di)
3687 struct osd_thread_info *oti = osd_oti_get(env);
3688 struct osd_it_iam *it = (struct osd_it_iam *)di;
3689 struct osd_object *obj = it->oi_obj;
3692 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
3694 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
3695 /* swab quota uid/gid */
3696 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
3697 key = (struct dt_key *)&oti->oti_quota_id;
3704 * Return size of key under iterator (in bytes)
3707 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
3709 struct osd_it_iam *it = (struct osd_it_iam *)di;
3711 return iam_it_key_size(&it->oi_it);
3714 static inline void osd_it_append_attrs(struct lu_dirent *ent, __u32 attr,
3715 int len, __u16 type)
3717 struct luda_type *lt;
3718 const unsigned align = sizeof(struct luda_type) - 1;
3720 /* check if file type is required */
3721 if (attr & LUDA_TYPE) {
3722 len = (len + align) & ~align;
3724 lt = (void *) ent->lde_name + len;
3725 lt->lt_type = cpu_to_le16(CFS_DTTOIF(type));
3726 ent->lde_attrs |= LUDA_TYPE;
3729 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
3733 * build lu direct from backend fs dirent.
3736 static inline void osd_it_pack_dirent(struct lu_dirent *ent,
3737 struct lu_fid *fid, __u64 offset,
3738 char *name, __u16 namelen,
3739 __u16 type, __u32 attr)
3741 fid_cpu_to_le(&ent->lde_fid, fid);
3742 ent->lde_attrs = LUDA_FID;
3744 ent->lde_hash = cpu_to_le64(offset);
3745 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
3747 strncpy(ent->lde_name, name, namelen);
3748 ent->lde_namelen = cpu_to_le16(namelen);
3750 /* append lustre attributes */
3751 osd_it_append_attrs(ent, attr, namelen, type);
3755 * Return pointer to the record under iterator.
3757 static int osd_it_iam_rec(const struct lu_env *env,
3758 const struct dt_it *di,
3759 struct dt_rec *dtrec, __u32 attr)
3761 struct osd_it_iam *it = (struct osd_it_iam *)di;
3762 struct osd_thread_info *info = osd_oti_get(env);
3765 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
3766 const struct osd_fid_pack *rec;
3767 struct lu_fid *fid = &info->oti_fid;
3768 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
3774 name = (char *)iam_it_key_get(&it->oi_it);
3776 RETURN(PTR_ERR(name));
3778 namelen = iam_it_key_size(&it->oi_it);
3780 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
3782 RETURN(PTR_ERR(rec));
3784 rc = osd_fid_unpack(fid, rec);
3788 hash = iam_it_store(&it->oi_it);
3790 /* IAM does not store object type in IAM index (dir) */
3791 osd_it_pack_dirent(lde, fid, hash, name, namelen,
3793 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
3794 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
3795 (struct iam_rec *)dtrec);
3796 osd_quota_unpack(it->oi_obj, dtrec);
3798 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
3799 (struct iam_rec *)dtrec);
3806 * Returns cookie for current Iterator position.
3808 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
3810 struct osd_it_iam *it = (struct osd_it_iam *)di;
3812 return iam_it_store(&it->oi_it);
3816 * Restore iterator from cookie.
3818 * \param di osd iterator
3819 * \param hash Iterator location cookie
3821 * \retval +ve di points to record with least key not larger than key.
3822 * \retval 0 di points to exact matched key
3823 * \retval -ve failure
3826 static int osd_it_iam_load(const struct lu_env *env,
3827 const struct dt_it *di, __u64 hash)
3829 struct osd_it_iam *it = (struct osd_it_iam *)di;
3831 return iam_it_load(&it->oi_it, hash);
3834 static const struct dt_index_operations osd_index_iam_ops = {
3835 .dio_lookup = osd_index_iam_lookup,
3836 .dio_declare_insert = osd_index_declare_iam_insert,
3837 .dio_insert = osd_index_iam_insert,
3838 .dio_declare_delete = osd_index_declare_iam_delete,
3839 .dio_delete = osd_index_iam_delete,
3841 .init = osd_it_iam_init,
3842 .fini = osd_it_iam_fini,
3843 .get = osd_it_iam_get,
3844 .put = osd_it_iam_put,
3845 .next = osd_it_iam_next,
3846 .key = osd_it_iam_key,
3847 .key_size = osd_it_iam_key_size,
3848 .rec = osd_it_iam_rec,
3849 .store = osd_it_iam_store,
3850 .load = osd_it_iam_load
3855 * Creates or initializes iterator context.
3857 * \retval struct osd_it_ea, iterator structure on success
3860 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
3861 struct dt_object *dt,
3863 struct lustre_capa *capa)
3865 struct osd_object *obj = osd_dt_obj(dt);
3866 struct osd_thread_info *info = osd_oti_get(env);
3867 struct osd_it_ea *it = &info->oti_it_ea;
3868 struct lu_object *lo = &dt->do_lu;
3869 struct dentry *obj_dentry = &info->oti_it_dentry;
3871 LASSERT(lu_object_exists(lo));
3873 obj_dentry->d_inode = obj->oo_inode;
3874 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
3875 obj_dentry->d_name.hash = 0;
3877 it->oie_rd_dirent = 0;
3878 it->oie_it_dirent = 0;
3879 it->oie_dirent = NULL;
3880 it->oie_buf = info->oti_it_ea_buf;
3882 it->oie_file.f_pos = 0;
3883 it->oie_file.f_dentry = obj_dentry;
3884 if (attr & LUDA_64BITHASH)
3885 it->oie_file.f_mode |= FMODE_64BITHASH;
3887 it->oie_file.f_mode |= FMODE_32BITHASH;
3888 it->oie_file.f_mapping = obj->oo_inode->i_mapping;
3889 it->oie_file.f_op = obj->oo_inode->i_fop;
3890 it->oie_file.private_data = NULL;
3892 RETURN((struct dt_it *) it);
3896 * Destroy or finishes iterator context.
3898 * \param di iterator structure to be destroyed
3900 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
3902 struct osd_it_ea *it = (struct osd_it_ea *)di;
3903 struct osd_object *obj = it->oie_obj;
3904 struct inode *inode = obj->oo_inode;
3907 it->oie_file.f_op->release(inode, &it->oie_file);
3908 lu_object_put(env, &obj->oo_dt.do_lu);
3913 * It position the iterator at given key, so that next lookup continues from
3914 * that key Or it is similar to dio_it->load() but based on a key,
3915 * rather than file position.
3917 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
3920 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
3922 static int osd_it_ea_get(const struct lu_env *env,
3923 struct dt_it *di, const struct dt_key *key)
3925 struct osd_it_ea *it = (struct osd_it_ea *)di;
3928 LASSERT(((const char *)key)[0] == '\0');
3929 it->oie_file.f_pos = 0;
3930 it->oie_rd_dirent = 0;
3931 it->oie_it_dirent = 0;
3932 it->oie_dirent = NULL;
3940 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
3945 * It is called internally by ->readdir(). It fills the
3946 * iterator's in-memory data structure with required
3947 * information i.e. name, namelen, rec_size etc.
3949 * \param buf in which information to be filled in.
3950 * \param name name of the file in given dir
3952 * \retval 0 on success
3953 * \retval 1 on buffer full
3955 static int osd_ldiskfs_filldir(char *buf, const char *name, int namelen,
3956 loff_t offset, __u64 ino,
3959 struct osd_it_ea *it = (struct osd_it_ea *)buf;
3960 struct osd_it_ea_dirent *ent = it->oie_dirent;
3961 struct lu_fid *fid = &ent->oied_fid;
3962 struct osd_fid_pack *rec;
3965 /* this should never happen */
3966 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
3967 CERROR("ldiskfs return invalid namelen %d\n", namelen);
3971 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
3975 if (d_type & LDISKFS_DIRENT_LUFID) {
3976 rec = (struct osd_fid_pack*) (name + namelen + 1);
3978 if (osd_fid_unpack(fid, rec) != 0)
3981 d_type &= ~LDISKFS_DIRENT_LUFID;
3986 ent->oied_ino = ino;
3987 ent->oied_off = offset;
3988 ent->oied_namelen = namelen;
3989 ent->oied_type = d_type;
3991 memcpy(ent->oied_name, name, namelen);
3993 it->oie_rd_dirent++;
3994 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
3999 * Calls ->readdir() to load a directory entry at a time
4000 * and stored it in iterator's in-memory data structure.
4002 * \param di iterator's in memory structure
4004 * \retval 0 on success
4005 * \retval -ve on error
4007 static int osd_ldiskfs_it_fill(const struct lu_env *env,
4008 const struct dt_it *di)
4010 struct osd_it_ea *it = (struct osd_it_ea *)di;
4011 struct osd_object *obj = it->oie_obj;
4012 struct inode *inode = obj->oo_inode;
4013 struct htree_lock *hlock = NULL;
4017 it->oie_dirent = it->oie_buf;
4018 it->oie_rd_dirent = 0;
4020 if (obj->oo_hl_head != NULL) {
4021 hlock = osd_oti_get(env)->oti_hlock;
4022 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4023 inode, LDISKFS_HLOCK_READDIR);
4025 cfs_down_read(&obj->oo_ext_idx_sem);
4028 result = inode->i_fop->readdir(&it->oie_file, it,
4029 (filldir_t) osd_ldiskfs_filldir);
4032 ldiskfs_htree_unlock(hlock);
4034 cfs_up_read(&obj->oo_ext_idx_sem);
4036 if (it->oie_rd_dirent == 0) {
4039 it->oie_dirent = it->oie_buf;
4040 it->oie_it_dirent = 1;
4047 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
4048 * to load a directory entry at a time and stored it in
4049 * iterator's in-memory data structure.
4051 * \param di iterator's in memory structure
4053 * \retval +ve iterator reached to end
4054 * \retval 0 iterator not reached to end
4055 * \retval -ve on error
4057 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
4059 struct osd_it_ea *it = (struct osd_it_ea *)di;
4064 if (it->oie_it_dirent < it->oie_rd_dirent) {
4066 (void *) it->oie_dirent +
4067 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
4068 it->oie_dirent->oied_namelen);
4069 it->oie_it_dirent++;
4072 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
4075 rc = osd_ldiskfs_it_fill(env, di);
4082 * Returns the key at current position from iterator's in memory structure.
4084 * \param di iterator's in memory structure
4086 * \retval key i.e. struct dt_key on success
4088 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
4089 const struct dt_it *di)
4091 struct osd_it_ea *it = (struct osd_it_ea *)di;
4093 return (struct dt_key *)it->oie_dirent->oied_name;
4097 * Returns the key's size at current position from iterator's in memory structure.
4099 * \param di iterator's in memory structure
4101 * \retval key_size i.e. struct dt_key on success
4103 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
4105 struct osd_it_ea *it = (struct osd_it_ea *)di;
4107 return it->oie_dirent->oied_namelen;
4112 * Returns the value (i.e. fid/igif) at current position from iterator's
4113 * in memory structure.
4115 * \param di struct osd_it_ea, iterator's in memory structure
4116 * \param attr attr requested for dirent.
4117 * \param lde lustre dirent
4119 * \retval 0 no error and \param lde has correct lustre dirent.
4120 * \retval -ve on error
4122 static inline int osd_it_ea_rec(const struct lu_env *env,
4123 const struct dt_it *di,
4124 struct dt_rec *dtrec, __u32 attr)
4126 struct osd_it_ea *it = (struct osd_it_ea *)di;
4127 struct osd_object *obj = it->oie_obj;
4128 struct osd_device *dev = osd_obj2dev(obj);
4129 struct osd_scrub *scrub = &dev->od_scrub;
4130 struct scrub_file *sf = &scrub->os_file;
4131 struct osd_thread_info *oti = osd_oti_get(env);
4132 struct osd_idmap_cache *oic = &oti->oti_cache;
4133 struct lu_fid *fid = &it->oie_dirent->oied_fid;
4134 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
4135 __u32 ino = it->oie_dirent->oied_ino;
4139 if (!fid_is_sane(fid)) {
4140 rc = osd_ea_fid_get(env, obj, ino, fid, &oic->oic_lid);
4144 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
4147 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
4148 it->oie_dirent->oied_name,
4149 it->oie_dirent->oied_namelen,
4150 it->oie_dirent->oied_type, attr);
4151 if (!fid_is_norm(fid)) {
4152 fid_zero(&oic->oic_fid);
4156 oic->oic_fid = *fid;
4157 if ((scrub->os_pos_current <= ino) &&
4158 (sf->sf_flags & SF_INCONSISTENT ||
4159 ldiskfs_test_bit(osd_oi_fid2idx(dev, fid), sf->sf_oi_bitmap)))
4160 rc = osd_consistency_check(oti, dev, oic);
4166 * Returns a cookie for current position of the iterator head, so that
4167 * user can use this cookie to load/start the iterator next time.
4169 * \param di iterator's in memory structure
4171 * \retval cookie for current position, on success
4173 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
4175 struct osd_it_ea *it = (struct osd_it_ea *)di;
4177 return it->oie_dirent->oied_off;
4181 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
4182 * to load a directory entry at a time and stored it i inn,
4183 * in iterator's in-memory data structure.
4185 * \param di struct osd_it_ea, iterator's in memory structure
4187 * \retval +ve on success
4188 * \retval -ve on error
4190 static int osd_it_ea_load(const struct lu_env *env,
4191 const struct dt_it *di, __u64 hash)
4193 struct osd_it_ea *it = (struct osd_it_ea *)di;
4197 it->oie_file.f_pos = hash;
4199 rc = osd_ldiskfs_it_fill(env, di);
4207 * Index lookup function for interoperability mode (b11826).
4209 * \param key, key i.e. file name to be searched
4211 * \retval +ve, on success
4212 * \retval -ve, on error
4214 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
4215 struct dt_rec *rec, const struct dt_key *key,
4216 struct lustre_capa *capa)
4218 struct osd_object *obj = osd_dt_obj(dt);
4223 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
4224 LINVRNT(osd_invariant(obj));
4226 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
4229 rc = osd_ea_lookup_rec(env, obj, rec, key);
4237 * Index and Iterator operations for interoperability
4238 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
4240 static const struct dt_index_operations osd_index_ea_ops = {
4241 .dio_lookup = osd_index_ea_lookup,
4242 .dio_declare_insert = osd_index_declare_ea_insert,
4243 .dio_insert = osd_index_ea_insert,
4244 .dio_declare_delete = osd_index_declare_ea_delete,
4245 .dio_delete = osd_index_ea_delete,
4247 .init = osd_it_ea_init,
4248 .fini = osd_it_ea_fini,
4249 .get = osd_it_ea_get,
4250 .put = osd_it_ea_put,
4251 .next = osd_it_ea_next,
4252 .key = osd_it_ea_key,
4253 .key_size = osd_it_ea_key_size,
4254 .rec = osd_it_ea_rec,
4255 .store = osd_it_ea_store,
4256 .load = osd_it_ea_load
4260 static void *osd_key_init(const struct lu_context *ctx,
4261 struct lu_context_key *key)
4263 struct osd_thread_info *info;
4265 OBD_ALLOC_PTR(info);
4267 return ERR_PTR(-ENOMEM);
4269 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
4270 if (info->oti_it_ea_buf == NULL)
4273 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
4275 info->oti_hlock = ldiskfs_htree_lock_alloc();
4276 if (info->oti_hlock == NULL)
4282 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
4285 return ERR_PTR(-ENOMEM);
4288 static void osd_key_fini(const struct lu_context *ctx,
4289 struct lu_context_key *key, void* data)
4291 struct osd_thread_info *info = data;
4293 if (info->oti_hlock != NULL)
4294 ldiskfs_htree_lock_free(info->oti_hlock);
4295 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
4299 static void osd_key_exit(const struct lu_context *ctx,
4300 struct lu_context_key *key, void *data)
4302 struct osd_thread_info *info = data;
4304 LASSERT(info->oti_r_locks == 0);
4305 LASSERT(info->oti_w_locks == 0);
4306 LASSERT(info->oti_txns == 0);
4309 /* type constructor/destructor: osd_type_init, osd_type_fini */
4310 LU_TYPE_INIT_FINI(osd, &osd_key);
4312 struct lu_context_key osd_key = {
4313 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
4314 .lct_init = osd_key_init,
4315 .lct_fini = osd_key_fini,
4316 .lct_exit = osd_key_exit
4320 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
4321 const char *name, struct lu_device *next)
4323 struct osd_device *osd = osd_dev(d);
4325 strncpy(osd->od_svname, name, MAX_OBD_NAME);
4326 return osd_procfs_init(osd, name);
4329 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
4333 osd_scrub_cleanup(env, o);
4336 fsfilt_put_ops(o->od_fsops);
4340 /* shutdown quota slave instance associated with the device */
4341 if (o->od_quota_slave != NULL) {
4342 qsd_fini(env, o->od_quota_slave);
4343 o->od_quota_slave = NULL;
4349 static int osd_mount(const struct lu_env *env,
4350 struct osd_device *o, struct lustre_cfg *cfg)
4352 const char *name = lustre_cfg_string(cfg, 0);
4353 const char *dev = lustre_cfg_string(cfg, 1);
4355 unsigned long page, s_flags, lmd_flags = 0;
4356 struct page *__page;
4357 struct file_system_type *type;
4358 char *options = NULL;
4363 if (o->od_mnt != NULL)
4366 o->od_fsops = fsfilt_get_ops(mt_str(LDD_MT_LDISKFS));
4367 if (o->od_fsops == NULL) {
4368 CERROR("Can't find fsfilt_ldiskfs\n");
4372 OBD_PAGE_ALLOC(__page, CFS_ALLOC_STD);
4374 GOTO(out, rc = -ENOMEM);
4376 str = lustre_cfg_string(cfg, 2);
4377 s_flags = simple_strtoul(str, NULL, 0);
4378 str = strstr(str, ":");
4380 lmd_flags = simple_strtoul(str + 1, NULL, 0);
4381 opts = lustre_cfg_string(cfg, 3);
4382 page = (unsigned long)cfs_page_address(__page);
4383 options = (char *)page;
4386 strcat(options, "user_xattr,acl");
4388 strcat(options, opts);
4390 /* Glom up mount options */
4391 if (*options != '\0')
4392 strcat(options, ",");
4393 strlcat(options, "no_mbcache", CFS_PAGE_SIZE);
4395 type = get_fs_type("ldiskfs");
4397 CERROR("%s: cannot find ldiskfs module\n", name);
4398 GOTO(out, rc = -ENODEV);
4401 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
4402 cfs_module_put(type->owner);
4404 if (IS_ERR(o->od_mnt)) {
4405 rc = PTR_ERR(o->od_mnt);
4406 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
4411 if (lvfs_check_rdonly(o->od_mnt->mnt_sb->s_bdev)) {
4412 CERROR("%s: underlying device %s is marked as read-only. "
4413 "Setup failed\n", name, dev);
4416 GOTO(out, rc = -EROFS);
4419 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
4420 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
4421 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
4424 GOTO(out, rc = -EINVAL);
4427 if (lmd_flags & LMD_FLG_IAM) {
4429 LCONSOLE_WARN("%s: OSD: IAM mode enabled\n", name);
4432 if (lmd_flags & LMD_FLG_NOSCRUB)
4433 o->od_scrub.os_no_scrub = 1;
4437 OBD_PAGE_FREE(__page);
4439 fsfilt_put_ops(o->od_fsops);
4444 static struct lu_device *osd_device_fini(const struct lu_env *env,
4445 struct lu_device *d)
4450 rc = osd_shutdown(env, osd_dev(d));
4452 osd_compat_fini(osd_dev(d));
4454 shrink_dcache_sb(osd_sb(osd_dev(d)));
4455 osd_sync(env, lu2dt_dev(d));
4457 rc = osd_procfs_fini(osd_dev(d));
4459 CERROR("proc fini error %d \n", rc);
4460 RETURN (ERR_PTR(rc));
4463 if (osd_dev(d)->od_mnt) {
4464 mntput(osd_dev(d)->od_mnt);
4465 osd_dev(d)->od_mnt = NULL;
4471 static int osd_device_init0(const struct lu_env *env,
4472 struct osd_device *o,
4473 struct lustre_cfg *cfg)
4475 struct lu_device *l = osd2lu_dev(o);
4476 struct osd_thread_info *info;
4479 /* if the module was re-loaded, env can loose its keys */
4480 rc = lu_env_refill((struct lu_env *) env);
4483 info = osd_oti_get(env);
4486 l->ld_ops = &osd_lu_ops;
4487 o->od_dt_dev.dd_ops = &osd_dt_ops;
4489 cfs_spin_lock_init(&o->od_osfs_lock);
4490 cfs_mutex_init(&o->od_otable_mutex);
4491 o->od_osfs_age = cfs_time_shift_64(-1000);
4493 o->od_capa_hash = init_capa_hash();
4494 if (o->od_capa_hash == NULL)
4495 GOTO(out, rc = -ENOMEM);
4497 o->od_read_cache = 1;
4498 o->od_writethrough_cache = 1;
4499 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
4501 rc = osd_mount(env, o, cfg);
4505 /* setup scrub, including OI files initialization */
4506 rc = osd_scrub_setup(env, o);
4510 strncpy(o->od_svname, lustre_cfg_string(cfg, 4),
4511 sizeof(o->od_svname) - 1);
4513 rc = osd_compat_init(o);
4515 GOTO(out_scrub, rc);
4517 rc = lu_site_init(&o->od_site, l);
4519 GOTO(out_compat, rc);
4520 o->od_site.ls_bottom_dev = l;
4522 rc = lu_site_init_finish(&o->od_site);
4526 rc = osd_procfs_init(o, o->od_svname);
4528 CERROR("%s: can't initialize procfs: rc = %d\n",
4533 LASSERT(l->ld_site->ls_linkage.next && l->ld_site->ls_linkage.prev);
4535 /* initialize quota slave instance */
4536 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
4538 if (IS_ERR(o->od_quota_slave)) {
4539 rc = PTR_ERR(o->od_quota_slave);
4540 o->od_quota_slave = NULL;
4541 GOTO(out_procfs, rc);
4548 lu_site_fini(&o->od_site);
4552 osd_scrub_cleanup(env, o);
4554 osd_oi_fini(info, o);
4555 osd_shutdown(env, o);
4559 cleanup_capa_hash(o->od_capa_hash);
4564 static struct lu_device *osd_device_alloc(const struct lu_env *env,
4565 struct lu_device_type *t,
4566 struct lustre_cfg *cfg)
4568 struct osd_device *o;
4573 return ERR_PTR(-ENOMEM);
4575 rc = dt_device_init(&o->od_dt_dev, t);
4577 rc = osd_device_init0(env, o, cfg);
4579 dt_device_fini(&o->od_dt_dev);
4582 if (unlikely(rc != 0))
4585 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
4588 static struct lu_device *osd_device_free(const struct lu_env *env,
4589 struct lu_device *d)
4591 struct osd_device *o = osd_dev(d);
4594 cleanup_capa_hash(o->od_capa_hash);
4595 /* XXX: make osd top device in order to release reference */
4596 d->ld_site->ls_top_dev = d;
4597 lu_site_purge(env, d->ld_site, -1);
4598 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
4599 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
4600 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
4602 lu_site_fini(&o->od_site);
4603 dt_device_fini(&o->od_dt_dev);
4608 static int osd_process_config(const struct lu_env *env,
4609 struct lu_device *d, struct lustre_cfg *cfg)
4611 struct osd_device *o = osd_dev(d);
4615 switch(cfg->lcfg_command) {
4617 err = osd_mount(env, o, cfg);
4620 lu_dev_del_linkage(d->ld_site, d);
4621 err = osd_shutdown(env, o);
4630 static int osd_recovery_complete(const struct lu_env *env,
4631 struct lu_device *d)
4637 * we use exports to track all osd users
4639 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
4640 struct obd_device *obd, struct obd_uuid *cluuid,
4641 struct obd_connect_data *data, void *localdata)
4643 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
4644 struct lustre_handle conn;
4648 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
4650 rc = class_connect(&conn, obd, cluuid);
4654 *exp = class_conn2export(&conn);
4656 cfs_spin_lock(&osd->od_osfs_lock);
4658 cfs_spin_unlock(&osd->od_osfs_lock);
4664 * once last export (we don't count self-export) disappeared
4665 * osd can be released
4667 static int osd_obd_disconnect(struct obd_export *exp)
4669 struct obd_device *obd = exp->exp_obd;
4670 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
4671 int rc, release = 0;
4674 /* Only disconnect the underlying layers on the final disconnect. */
4675 cfs_spin_lock(&osd->od_osfs_lock);
4677 if (osd->od_connects == 0)
4679 cfs_spin_unlock(&osd->od_osfs_lock);
4681 rc = class_disconnect(exp); /* bz 9811 */
4683 if (rc == 0 && release)
4684 class_manual_cleanup(obd);
4688 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
4689 struct lu_device *dev)
4691 struct osd_device *osd = osd_dev(dev);
4695 if (dev->ld_site && lu_device_is_md(dev->ld_site->ls_top_dev)) {
4696 /* MDT/MDD still use old infrastructure to create
4698 result = llo_local_objects_setup(env, lu2md_dev(pdev),
4704 if (osd->od_quota_slave != NULL)
4705 /* set up quota slave objects */
4706 result = qsd_prepare(env, osd->od_quota_slave);
4711 static const struct lu_object_operations osd_lu_obj_ops = {
4712 .loo_object_init = osd_object_init,
4713 .loo_object_delete = osd_object_delete,
4714 .loo_object_release = osd_object_release,
4715 .loo_object_free = osd_object_free,
4716 .loo_object_print = osd_object_print,
4717 .loo_object_invariant = osd_object_invariant
4720 const struct lu_device_operations osd_lu_ops = {
4721 .ldo_object_alloc = osd_object_alloc,
4722 .ldo_process_config = osd_process_config,
4723 .ldo_recovery_complete = osd_recovery_complete,
4724 .ldo_prepare = osd_prepare,
4727 static const struct lu_device_type_operations osd_device_type_ops = {
4728 .ldto_init = osd_type_init,
4729 .ldto_fini = osd_type_fini,
4731 .ldto_start = osd_type_start,
4732 .ldto_stop = osd_type_stop,
4734 .ldto_device_alloc = osd_device_alloc,
4735 .ldto_device_free = osd_device_free,
4737 .ldto_device_init = osd_device_init,
4738 .ldto_device_fini = osd_device_fini
4741 struct lu_device_type osd_device_type = {
4742 .ldt_tags = LU_DEVICE_DT,
4743 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
4744 .ldt_ops = &osd_device_type_ops,
4745 .ldt_ctx_tags = LCT_LOCAL,
4749 * lprocfs legacy support.
4751 static struct obd_ops osd_obd_device_ops = {
4752 .o_owner = THIS_MODULE,
4753 .o_connect = osd_obd_connect,
4754 .o_disconnect = osd_obd_disconnect
4757 static int __init osd_mod_init(void)
4759 struct lprocfs_static_vars lvars;
4762 lprocfs_osd_init_vars(&lvars);
4763 return class_register_type(&osd_obd_device_ops, NULL, lvars.module_vars,
4764 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
4767 static void __exit osd_mod_exit(void)
4769 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
4772 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
4773 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
4774 MODULE_LICENSE("GPL");
4776 cfs_module(osd, "0.1.0", osd_mod_init, osd_mod_exit);