1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011, 2012, Whamcloud, Inc.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/osd/osd_handler.c
40 * Top-level entry points into osd module
42 * Author: Nikita Danilov <nikita@clusterfs.com>
43 * Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
47 # define EXPORT_SYMTAB
49 #define DEBUG_SUBSYSTEM S_MDS
51 #include <linux/module.h>
53 /* LUSTRE_VERSION_CODE */
54 #include <lustre_ver.h>
55 /* prerequisite for linux/xattr.h */
56 #include <linux/types.h>
57 /* prerequisite for linux/xattr.h */
59 /* XATTR_{REPLACE,CREATE} */
60 #include <linux/xattr.h>
65 * struct OBD_{ALLOC,FREE}*()
68 #include <obd_support.h>
69 /* struct ptlrpc_thread */
70 #include <lustre_net.h>
73 #include <lustre_fid.h>
75 #include "osd_internal.h"
78 /* llo_* api support */
79 #include <md_object.h>
81 #ifdef HAVE_LDISKFS_PDO
83 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
84 "ldiskfs with parallel directory operations");
89 static const char dot[] = ".";
90 static const char dotdot[] = "..";
91 static const char remote_obj_dir[] = "REM_OBJ_DIR";
93 static const struct lu_object_operations osd_lu_obj_ops;
94 static const struct dt_object_operations osd_obj_ops;
95 static const struct dt_object_operations osd_obj_ea_ops;
96 static const struct dt_index_operations osd_index_iam_ops;
97 static const struct dt_index_operations osd_index_ea_ops;
99 static int osd_has_index(const struct osd_object *obj)
101 return obj->oo_dt.do_index_ops != NULL;
104 static int osd_object_invariant(const struct lu_object *l)
106 return osd_invariant(osd_obj(l));
109 #ifdef HAVE_QUOTA_SUPPORT
111 osd_push_ctxt(const struct lu_env *env, struct osd_ctxt *save)
113 struct md_ucred *uc = md_ucred(env);
118 save->oc_uid = current_fsuid();
119 save->oc_gid = current_fsgid();
120 save->oc_cap = current_cap();
121 if ((tc = prepare_creds())) {
122 tc->fsuid = uc->mu_fsuid;
123 tc->fsgid = uc->mu_fsgid;
126 /* XXX not suboptimal */
127 cfs_curproc_cap_unpack(uc->mu_cap);
131 osd_pop_ctxt(struct osd_ctxt *save)
135 if ((tc = prepare_creds())) {
136 tc->fsuid = save->oc_uid;
137 tc->fsgid = save->oc_gid;
138 tc->cap_effective = save->oc_cap;
145 * Concurrency: doesn't matter
147 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
149 return osd_oti_get(env)->oti_r_locks > 0;
153 * Concurrency: doesn't matter
155 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
157 struct osd_thread_info *oti = osd_oti_get(env);
158 return oti->oti_w_locks > 0 && o->oo_owner == env;
162 * Concurrency: doesn't access mutable data
164 static int osd_root_get(const struct lu_env *env,
165 struct dt_device *dev, struct lu_fid *f)
167 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
171 static inline int osd_qid_type(struct osd_thandle *oh, int i)
173 return (oh->ot_id_type & (1 << i)) ? GRPQUOTA : USRQUOTA;
176 static inline void osd_qid_set_type(struct osd_thandle *oh, int i, int type)
178 oh->ot_id_type |= ((type == GRPQUOTA) ? (1 << i) : 0);
181 void osd_declare_qid(struct dt_object *dt, struct osd_thandle *oh,
182 int type, uid_t id, struct inode *inode)
185 int i, allocated = 0;
186 struct osd_object *obj;
190 LASSERTF(oh->ot_id_cnt <= OSD_MAX_UGID_CNT, "count=%u",
193 /* id entry is allocated in the quota file */
194 if (inode && inode->i_dquot[type] && inode->i_dquot[type]->dq_off)
197 for (i = 0; i < oh->ot_id_cnt; i++) {
198 if (oh->ot_id_array[i] == id && osd_qid_type(oh, i) == type)
202 if (unlikely(i >= OSD_MAX_UGID_CNT)) {
203 CERROR("more than %d uid/gids for a transaction?\n", i);
207 oh->ot_id_array[i] = id;
208 osd_qid_set_type(oh, i, type);
210 obj = osd_dt_obj(dt);
211 oh->ot_credits += (allocated || id == 0) ?
212 1 : LDISKFS_QUOTA_INIT_BLOCKS(osd_sb(osd_obj2dev(obj)));
217 * OSD object methods.
221 * Concurrency: no concurrent access is possible that early in object
224 static struct lu_object *osd_object_alloc(const struct lu_env *env,
225 const struct lu_object_header *hdr,
228 struct osd_object *mo;
234 l = &mo->oo_dt.do_lu;
235 dt_object_init(&mo->oo_dt, NULL, d);
236 if (osd_dev(d)->od_iop_mode)
237 mo->oo_dt.do_ops = &osd_obj_ea_ops;
239 mo->oo_dt.do_ops = &osd_obj_ops;
241 l->lo_ops = &osd_lu_obj_ops;
242 cfs_init_rwsem(&mo->oo_sem);
243 cfs_init_rwsem(&mo->oo_ext_idx_sem);
244 cfs_spin_lock_init(&mo->oo_guard);
252 * retrieve object from backend ext fs.
254 struct inode *osd_iget(struct osd_thread_info *info,
255 struct osd_device *dev,
256 const struct osd_inode_id *id)
258 struct inode *inode = NULL;
260 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
262 CERROR("Cannot get inode, rc = %li\n", PTR_ERR(inode));
263 } else if (id->oii_gen != OSD_OII_NOGEN &&
264 inode->i_generation != id->oii_gen) {
266 inode = ERR_PTR(-ESTALE);
267 } else if (inode->i_nlink == 0) {
268 /* due to parallel readdir and unlink,
269 * we can have dead inode here. */
270 CWARN("stale inode\n");
271 make_bad_inode(inode);
273 inode = ERR_PTR(-ESTALE);
274 } else if (is_bad_inode(inode)) {
275 CERROR("bad inode %lx\n",inode->i_ino);
277 inode = ERR_PTR(-ENOENT);
279 /* Do not update file c/mtime in ldiskfs.
280 * NB: we don't have any lock to protect this because we don't
281 * have reference on osd_object now, but contention with
282 * another lookup + attr_set can't happen in the tiny window
283 * between if (...) and set S_NOCMTIME. */
284 if (!(inode->i_flags & S_NOCMTIME))
285 inode->i_flags |= S_NOCMTIME;
290 static int osd_fid_lookup(const struct lu_env *env,
291 struct osd_object *obj, const struct lu_fid *fid)
293 struct osd_thread_info *info;
294 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
295 struct osd_device *dev;
296 struct osd_inode_id *id;
300 LINVRNT(osd_invariant(obj));
301 LASSERT(obj->oo_inode == NULL);
302 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID, PFID(fid));
304 * This assertion checks that osd layer sees only local
305 * fids. Unfortunately it is somewhat expensive (does a
306 * cache-lookup). Disabling it for production/acceptance-testing.
308 LASSERT(1 || fid_is_local(env, ldev->ld_site, fid));
312 info = osd_oti_get(env);
317 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
320 result = osd_oi_lookup(info, dev, fid, id);
322 if (result == -ENOENT)
327 inode = osd_iget(info, dev, id);
330 * If fid wasn't found in oi, inode-less object is
331 * created, for which lu_object_exists() returns
332 * false. This is used in a (frequent) case when
333 * objects are created as locking anchors or
334 * place holders for objects yet to be created.
336 result = PTR_ERR(inode);
340 obj->oo_inode = inode;
341 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
342 if (dev->od_iop_mode) {
343 obj->oo_compat_dot_created = 1;
344 obj->oo_compat_dotdot_created = 1;
347 if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
350 LASSERT(obj->oo_hl_head == NULL);
351 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
352 if (obj->oo_hl_head == NULL) {
353 obj->oo_inode = NULL;
358 LINVRNT(osd_invariant(obj));
363 * Concurrency: shouldn't matter.
365 static void osd_object_init0(struct osd_object *obj)
367 LASSERT(obj->oo_inode != NULL);
368 obj->oo_dt.do_body_ops = &osd_body_ops;
369 obj->oo_dt.do_lu.lo_header->loh_attr |=
370 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
374 * Concurrency: no concurrent access is possible that early in object
377 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
378 const struct lu_object_conf *unused)
380 struct osd_object *obj = osd_obj(l);
383 LINVRNT(osd_invariant(obj));
385 result = osd_fid_lookup(env, obj, lu_object_fid(l));
386 obj->oo_dt.do_body_ops = &osd_body_ops_new;
388 if (obj->oo_inode != NULL)
389 osd_object_init0(obj);
391 LINVRNT(osd_invariant(obj));
396 * Concurrency: no concurrent access is possible that late in object
399 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
401 struct osd_object *obj = osd_obj(l);
403 LINVRNT(osd_invariant(obj));
405 dt_object_fini(&obj->oo_dt);
406 if (obj->oo_hl_head != NULL)
407 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
412 * Concurrency: no concurrent access is possible that late in object
415 static void osd_index_fini(struct osd_object *o)
417 struct iam_container *bag;
419 if (o->oo_dir != NULL) {
420 bag = &o->oo_dir->od_container;
421 if (o->oo_inode != NULL) {
422 if (bag->ic_object == o->oo_inode)
423 iam_container_fini(bag);
425 OBD_FREE_PTR(o->oo_dir);
431 * Concurrency: no concurrent access is possible that late in object
432 * life-cycle (for all existing callers, that is. New callers have to provide
433 * their own locking.)
435 static int osd_inode_unlinked(const struct inode *inode)
437 return inode->i_nlink == 0;
441 OSD_TXN_OI_DELETE_CREDITS = 20,
442 OSD_TXN_INODE_DELETE_CREDITS = 20
449 #if OSD_THANDLE_STATS
451 * Set time when the handle is allocated
453 static void osd_th_alloced(struct osd_thandle *oth)
455 oth->oth_alloced = cfs_time_current();
459 * Set time when the handle started
461 static void osd_th_started(struct osd_thandle *oth)
463 oth->oth_started = cfs_time_current();
467 * Helper function to convert time interval to microseconds packed in
468 * long int (default time units for the counter in "stats" initialized
469 * by lu_time_init() )
471 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
475 cfs_duration_usec(cfs_time_sub(end, start), &val);
476 return val.tv_sec * 1000000 + val.tv_usec;
480 * Check whether the we deal with this handle for too long.
482 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
483 cfs_time_t alloced, cfs_time_t started,
486 cfs_time_t now = cfs_time_current();
488 LASSERT(dev != NULL);
490 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
491 interval_to_usec(alloced, started));
492 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
493 interval_to_usec(started, closed));
494 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
495 interval_to_usec(closed, now));
497 if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
498 CWARN("transaction handle %p was open for too long: "
500 "alloced "CFS_TIME_T" ,"
501 "started "CFS_TIME_T" ,"
502 "closed "CFS_TIME_T"\n",
503 oth, now, alloced, started, closed);
504 libcfs_debug_dumpstack(NULL);
508 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
510 cfs_time_t __closed = cfs_time_current(); \
511 cfs_time_t __alloced = oth->oth_alloced; \
512 cfs_time_t __started = oth->oth_started; \
515 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
518 #else /* OSD_THANDLE_STATS */
520 #define osd_th_alloced(h) do {} while(0)
521 #define osd_th_started(h) do {} while(0)
522 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
524 #endif /* OSD_THANDLE_STATS */
527 * Concurrency: doesn't access mutable data.
529 static int osd_param_is_sane(const struct osd_device *dev,
530 const struct thandle *th)
532 struct osd_thandle *oh;
533 oh = container_of0(th, struct osd_thandle, ot_super);
534 return oh->ot_credits <= osd_journal(dev)->j_max_transaction_buffers;
538 * Concurrency: shouldn't matter.
540 #ifdef HAVE_LDISKFS_JOURNAL_CALLBACK_ADD
541 static void osd_trans_commit_cb(struct super_block *sb,
542 struct journal_callback *jcb, int error)
544 static void osd_trans_commit_cb(struct journal_callback *jcb, int error)
547 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
548 struct thandle *th = &oh->ot_super;
549 struct lu_device *lud = &th->th_dev->dd_lu_dev;
550 struct dt_txn_commit_cb *dcb, *tmp;
552 LASSERT(oh->ot_handle == NULL);
555 CERROR("transaction @0x%p commit error: %d\n", th, error);
557 dt_txn_hook_commit(th);
559 /* call per-transaction callbacks if any */
560 cfs_list_for_each_entry_safe(dcb, tmp, &oh->ot_dcb_list, dcb_linkage)
561 dcb->dcb_func(NULL, th, dcb, error);
563 lu_ref_del_at(&lud->ld_reference, oh->ot_dev_link, "osd-tx", th);
567 lu_context_exit(&th->th_ctx);
568 lu_context_fini(&th->th_ctx);
572 static struct thandle *osd_trans_create(const struct lu_env *env,
575 struct osd_thread_info *oti = osd_oti_get(env);
576 struct osd_iobuf *iobuf = &oti->oti_iobuf;
577 struct osd_thandle *oh;
581 /* on pending IO in this thread should left from prev. request */
582 LASSERT(cfs_atomic_read(&iobuf->dr_numreqs) == 0);
584 th = ERR_PTR(-ENOMEM);
585 OBD_ALLOC_GFP(oh, sizeof *oh, CFS_ALLOC_IO);
590 th->th_tags = LCT_TX_HANDLE;
592 oti->oti_dev = osd_dt_dev(d);
593 CFS_INIT_LIST_HEAD(&oh->ot_dcb_list);
600 * Concurrency: shouldn't matter.
602 int osd_trans_start(const struct lu_env *env, struct dt_device *d,
605 struct osd_thread_info *oti = osd_oti_get(env);
606 struct osd_device *dev = osd_dt_dev(d);
608 struct osd_thandle *oh;
613 LASSERT(current->journal_info == NULL);
615 oh = container_of0(th, struct osd_thandle, ot_super);
617 LASSERT(oh->ot_handle == NULL);
619 rc = dt_txn_hook_start(env, d, th);
623 if (!osd_param_is_sane(dev, th)) {
624 CWARN("%s: too many transaction credits (%d > %d)\n",
625 d->dd_lu_dev.ld_obd->obd_name, oh->ot_credits,
626 osd_journal(dev)->j_max_transaction_buffers);
627 /* XXX Limit the credits to 'max_transaction_buffers', and
628 * let the underlying filesystem to catch the error if
629 * we really need so many credits.
631 * This should be removed when we can calculate the
632 * credits precisely. */
633 oh->ot_credits = osd_journal(dev)->j_max_transaction_buffers;
634 #ifdef OSD_TRACK_DECLARES
635 CERROR(" attr_set: %d, punch: %d, xattr_set: %d,\n",
636 oh->ot_declare_attr_set, oh->ot_declare_punch,
637 oh->ot_declare_xattr_set);
638 CERROR(" create: %d, ref_add: %d, ref_del: %d, write: %d\n",
639 oh->ot_declare_create, oh->ot_declare_ref_add,
640 oh->ot_declare_ref_del, oh->ot_declare_write);
641 CERROR(" insert: %d, delete: %d, destroy: %d\n",
642 oh->ot_declare_insert, oh->ot_declare_delete,
643 oh->ot_declare_destroy);
648 * XXX temporary stuff. Some abstraction layer should
651 jh = ldiskfs_journal_start_sb(osd_sb(dev), oh->ot_credits);
655 LASSERT(oti->oti_txns == 0);
656 lu_context_init(&th->th_ctx, th->th_tags);
657 lu_context_enter(&th->th_ctx);
659 lu_device_get(&d->dd_lu_dev);
660 oh->ot_dev_link = lu_ref_add(&d->dd_lu_dev.ld_reference,
664 * XXX: current rule is that we first start tx,
665 * then lock object(s), but we can't use
666 * this rule for data (due to locking specifics
667 * in ldiskfs). also in long-term we'd like to
668 * use usually-used (locks;tx) ordering. so,
669 * UGLY thing is that we'll use one ordering for
670 * data (ofd) and reverse ordering for metadata
671 * (mdd). then at some point we'll fix the latter
673 if (lu_device_is_md(&d->dd_lu_dev)) {
674 LASSERT(oti->oti_r_locks == 0);
675 LASSERT(oti->oti_w_locks == 0);
688 * Concurrency: shouldn't matter.
690 static int osd_trans_stop(const struct lu_env *env, struct thandle *th)
693 struct osd_thandle *oh;
694 struct osd_thread_info *oti = osd_oti_get(env);
695 struct osd_iobuf *iobuf = &oti->oti_iobuf;
699 oh = container_of0(th, struct osd_thandle, ot_super);
701 if (oh->ot_handle != NULL) {
702 handle_t *hdl = oh->ot_handle;
704 hdl->h_sync = th->th_sync;
707 * add commit callback
708 * notice we don't do this in osd_trans_start()
709 * as underlying transaction can change during truncate
711 osd_journal_callback_set(hdl, osd_trans_commit_cb,
714 LASSERT(oti->oti_txns == 1);
717 * XXX: current rule is that we first start tx,
718 * then lock object(s), but we can't use
719 * this rule for data (due to locking specifics
720 * in ldiskfs). also in long-term we'd like to
721 * use usually-used (locks;tx) ordering. so,
722 * UGLY thing is that we'll use one ordering for
723 * data (ofd) and reverse ordering for metadata
724 * (mdd). then at some point we'll fix the latter
726 if (lu_device_is_md(&th->th_dev->dd_lu_dev)) {
727 LASSERT(oti->oti_r_locks == 0);
728 LASSERT(oti->oti_w_locks == 0);
730 rc = dt_txn_hook_stop(env, th);
732 CERROR("Failure in transaction hook: %d\n", rc);
733 oh->ot_handle = NULL;
734 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
735 rc = ldiskfs_journal_stop(hdl));
737 CERROR("Failure to stop transaction: %d\n", rc);
742 /* as we want IO to journal and data IO be concurrent, we don't block
743 * awaiting data IO completion in osd_do_bio(), instead we wait here
744 * once transaction is submitted to the journal. all reqular requests
745 * don't do direct IO (except read/write), thus this wait_event becomes
748 * IMPORTANT: we have to wait till any IO submited by the thread is
749 * completed otherwise iobuf may be corrupted by different request
751 cfs_wait_event(iobuf->dr_wait,
752 cfs_atomic_read(&iobuf->dr_numreqs) == 0);
754 rc = iobuf->dr_error;
759 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
761 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
764 cfs_list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
770 * Called just before object is freed. Releases all resources except for
771 * object itself (that is released by osd_object_free()).
773 * Concurrency: no concurrent access is possible that late in object
776 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
778 struct osd_object *obj = osd_obj(l);
779 struct inode *inode = obj->oo_inode;
781 LINVRNT(osd_invariant(obj));
784 * If object is unlinked remove fid->ino mapping from object index.
790 obj->oo_inode = NULL;
795 * Concurrency: ->loo_object_release() is called under site spin-lock.
797 static void osd_object_release(const struct lu_env *env,
803 * Concurrency: shouldn't matter.
805 static int osd_object_print(const struct lu_env *env, void *cookie,
806 lu_printer_t p, const struct lu_object *l)
808 struct osd_object *o = osd_obj(l);
811 if (o->oo_dir != NULL)
812 d = o->oo_dir->od_container.ic_descr;
815 return (*p)(env, cookie, LUSTRE_OSD_NAME"-object@%p(i:%p:%lu/%u)[%s]",
817 o->oo_inode ? o->oo_inode->i_ino : 0UL,
818 o->oo_inode ? o->oo_inode->i_generation : 0,
819 d ? d->id_ops->id_name : "plain");
823 * Concurrency: shouldn't matter.
825 int osd_statfs(const struct lu_env *env, struct dt_device *d,
828 struct osd_device *osd = osd_dt_dev(d);
829 struct super_block *sb = osd_sb(osd);
832 cfs_spin_lock(&osd->od_osfs_lock);
834 if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
835 result = ll_do_statfs(sb, &osd->od_kstatfs);
836 if (likely(result == 0)) /* N.B. statfs can't really fail */
837 osd->od_osfs_age = cfs_time_current_64();
840 if (likely(result == 0))
841 *sfs = osd->od_kstatfs;
842 cfs_spin_unlock(&osd->od_osfs_lock);
848 * Concurrency: doesn't access mutable data.
850 static void osd_conf_get(const struct lu_env *env,
851 const struct dt_device *dev,
852 struct dt_device_param *param)
854 struct super_block *sb = osd_sb(osd_dt_dev(dev));
857 * XXX should be taken from not-yet-existing fs abstraction layer.
859 param->ddp_max_name_len = LDISKFS_NAME_LEN;
860 param->ddp_max_nlink = LDISKFS_LINK_MAX;
861 param->ddp_block_shift = osd_sb(osd_dt_dev(dev))->s_blocksize_bits;
862 param->ddp_mntopts = 0;
863 if (test_opt(sb, XATTR_USER))
864 param->ddp_mntopts |= MNTOPT_USERXATTR;
865 if (test_opt(sb, POSIX_ACL))
866 param->ddp_mntopts |= MNTOPT_ACL;
868 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
869 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
870 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE;
873 param->ddp_max_ea_size = sb->s_blocksize;
878 * Helper function to get and fill the buffer with input values.
880 static struct lu_buf *osd_buf_get(const struct lu_env *env, void *area, ssize_t len)
884 buf = &osd_oti_get(env)->oti_buf;
891 * Concurrency: shouldn't matter.
893 static int osd_sync(const struct lu_env *env, struct dt_device *d)
895 CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_NAME);
896 return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
900 * Start commit for OSD device.
902 * An implementation of dt_commit_async method for OSD device.
903 * Asychronously starts underlayng fs sync and thereby a transaction
906 * \param env environment
909 * \see dt_device_operations
911 static int osd_commit_async(const struct lu_env *env,
914 struct super_block *s = osd_sb(osd_dt_dev(d));
917 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_NAME);
918 RETURN(s->s_op->sync_fs(s, 0));
922 * Concurrency: shouldn't matter.
925 static int osd_ro(const struct lu_env *env, struct dt_device *d)
927 struct super_block *sb = osd_sb(osd_dt_dev(d));
931 CERROR("*** setting device %s read-only ***\n", LUSTRE_OSD_NAME);
933 rc = __lvfs_set_rdonly(sb->s_bdev, LDISKFS_SB(sb)->journal_bdev);
938 * Concurrency: serialization provided by callers.
940 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
941 int mode, unsigned long timeout, __u32 alg,
942 struct lustre_capa_key *keys)
944 struct osd_device *dev = osd_dt_dev(d);
947 dev->od_fl_capa = mode;
948 dev->od_capa_timeout = timeout;
949 dev->od_capa_alg = alg;
950 dev->od_capa_keys = keys;
955 * Concurrency: serialization provided by callers.
957 static void osd_init_quota_ctxt(const struct lu_env *env, struct dt_device *d,
958 struct dt_quota_ctxt *ctxt, void *data)
960 struct obd_device *obd = (void *)ctxt;
961 struct vfsmount *mnt = (struct vfsmount *)data;
964 obd->u.obt.obt_sb = mnt->mnt_root->d_inode->i_sb;
965 OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
966 obd->obd_lvfs_ctxt.pwdmnt = mnt;
967 obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
968 obd->obd_lvfs_ctxt.fs = get_ds();
974 * Note: we do not count into QUOTA here.
975 * If we mount with --data_journal we may need more.
977 const int osd_dto_credits_noquota[DTO_NR] = {
980 * INDEX_EXTRA_TRANS_BLOCKS(8) +
981 * SINGLEDATA_TRANS_BLOCKS(8)
982 * XXX Note: maybe iam need more, since iam have more level than
985 [DTO_INDEX_INSERT] = 16,
986 [DTO_INDEX_DELETE] = 16,
990 [DTO_INDEX_UPDATE] = 16,
992 * Create a object. The same as create object in EXT3.
993 * DATA_TRANS_BLOCKS(14) +
994 * INDEX_EXTRA_BLOCKS(8) +
995 * 3(inode bits, groups, GDT)
997 [DTO_OBJECT_CREATE] = 25,
999 * XXX: real credits to be fixed
1001 [DTO_OBJECT_DELETE] = 25,
1003 * Attr set credits (inode)
1005 [DTO_ATTR_SET_BASE] = 1,
1007 * Xattr set. The same as xattr of EXT3.
1008 * DATA_TRANS_BLOCKS(14)
1009 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1010 * are also counted in. Do not know why?
1012 [DTO_XATTR_SET] = 14,
1015 * credits for inode change during write.
1017 [DTO_WRITE_BASE] = 3,
1019 * credits for single block write.
1021 [DTO_WRITE_BLOCK] = 14,
1023 * Attr set credits for chown.
1024 * This is extra credits for setattr, and it is null without quota
1026 [DTO_ATTR_SET_CHOWN]= 0
1029 static const struct dt_device_operations osd_dt_ops = {
1030 .dt_root_get = osd_root_get,
1031 .dt_statfs = osd_statfs,
1032 .dt_trans_create = osd_trans_create,
1033 .dt_trans_start = osd_trans_start,
1034 .dt_trans_stop = osd_trans_stop,
1035 .dt_trans_cb_add = osd_trans_cb_add,
1036 .dt_conf_get = osd_conf_get,
1037 .dt_sync = osd_sync,
1039 .dt_commit_async = osd_commit_async,
1040 .dt_init_capa_ctxt = osd_init_capa_ctxt,
1041 .dt_init_quota_ctxt= osd_init_quota_ctxt,
1044 static void osd_object_read_lock(const struct lu_env *env,
1045 struct dt_object *dt, unsigned role)
1047 struct osd_object *obj = osd_dt_obj(dt);
1048 struct osd_thread_info *oti = osd_oti_get(env);
1050 LINVRNT(osd_invariant(obj));
1052 LASSERT(obj->oo_owner != env);
1053 cfs_down_read_nested(&obj->oo_sem, role);
1055 LASSERT(obj->oo_owner == NULL);
1059 static void osd_object_write_lock(const struct lu_env *env,
1060 struct dt_object *dt, unsigned role)
1062 struct osd_object *obj = osd_dt_obj(dt);
1063 struct osd_thread_info *oti = osd_oti_get(env);
1065 LINVRNT(osd_invariant(obj));
1067 LASSERT(obj->oo_owner != env);
1068 cfs_down_write_nested(&obj->oo_sem, role);
1070 LASSERT(obj->oo_owner == NULL);
1071 obj->oo_owner = env;
1075 static void osd_object_read_unlock(const struct lu_env *env,
1076 struct dt_object *dt)
1078 struct osd_object *obj = osd_dt_obj(dt);
1079 struct osd_thread_info *oti = osd_oti_get(env);
1081 LINVRNT(osd_invariant(obj));
1083 LASSERT(oti->oti_r_locks > 0);
1085 cfs_up_read(&obj->oo_sem);
1088 static void osd_object_write_unlock(const struct lu_env *env,
1089 struct dt_object *dt)
1091 struct osd_object *obj = osd_dt_obj(dt);
1092 struct osd_thread_info *oti = osd_oti_get(env);
1094 LINVRNT(osd_invariant(obj));
1096 LASSERT(obj->oo_owner == env);
1097 LASSERT(oti->oti_w_locks > 0);
1099 obj->oo_owner = NULL;
1100 cfs_up_write(&obj->oo_sem);
1103 static int osd_object_write_locked(const struct lu_env *env,
1104 struct dt_object *dt)
1106 struct osd_object *obj = osd_dt_obj(dt);
1108 LINVRNT(osd_invariant(obj));
1110 return obj->oo_owner == env;
1113 static int capa_is_sane(const struct lu_env *env,
1114 struct osd_device *dev,
1115 struct lustre_capa *capa,
1116 struct lustre_capa_key *keys)
1118 struct osd_thread_info *oti = osd_oti_get(env);
1119 struct lustre_capa *tcapa = &oti->oti_capa;
1120 struct obd_capa *oc;
1124 oc = capa_lookup(dev->od_capa_hash, capa, 0);
1126 if (capa_is_expired(oc)) {
1127 DEBUG_CAPA(D_ERROR, capa, "expired");
1134 if (capa_is_expired_sec(capa)) {
1135 DEBUG_CAPA(D_ERROR, capa, "expired");
1139 cfs_spin_lock(&capa_lock);
1140 for (i = 0; i < 2; i++) {
1141 if (keys[i].lk_keyid == capa->lc_keyid) {
1142 oti->oti_capa_key = keys[i];
1146 cfs_spin_unlock(&capa_lock);
1149 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1153 rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1157 if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1158 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1162 oc = capa_add(dev->od_capa_hash, capa);
1168 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1169 struct lustre_capa *capa, __u64 opc)
1171 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1172 struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
1173 struct md_capainfo *ci;
1176 if (!dev->od_fl_capa)
1179 if (capa == BYPASS_CAPA)
1182 ci = md_capainfo(env);
1186 if (ci->mc_auth == LC_ID_NONE)
1190 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1194 if (!lu_fid_eq(fid, &capa->lc_fid)) {
1195 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1200 if (!capa_opc_supported(capa, opc)) {
1201 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1205 if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1206 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1213 static struct timespec *osd_inode_time(const struct lu_env *env,
1214 struct inode *inode, __u64 seconds)
1216 struct osd_thread_info *oti = osd_oti_get(env);
1217 struct timespec *t = &oti->oti_time;
1219 t->tv_sec = seconds;
1221 *t = timespec_trunc(*t, get_sb_time_gran(inode->i_sb));
1226 static void osd_inode_getattr(const struct lu_env *env,
1227 struct inode *inode, struct lu_attr *attr)
1229 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1230 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1231 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE;
1233 attr->la_atime = LTIME_S(inode->i_atime);
1234 attr->la_mtime = LTIME_S(inode->i_mtime);
1235 attr->la_ctime = LTIME_S(inode->i_ctime);
1236 attr->la_mode = inode->i_mode;
1237 attr->la_size = i_size_read(inode);
1238 attr->la_blocks = inode->i_blocks;
1239 attr->la_uid = inode->i_uid;
1240 attr->la_gid = inode->i_gid;
1241 attr->la_flags = LDISKFS_I(inode)->i_flags;
1242 attr->la_nlink = inode->i_nlink;
1243 attr->la_rdev = inode->i_rdev;
1244 attr->la_blksize = ll_inode_blksize(inode);
1245 attr->la_blkbits = inode->i_blkbits;
1248 static int osd_attr_get(const struct lu_env *env,
1249 struct dt_object *dt,
1250 struct lu_attr *attr,
1251 struct lustre_capa *capa)
1253 struct osd_object *obj = osd_dt_obj(dt);
1255 LASSERT(dt_object_exists(dt));
1256 LINVRNT(osd_invariant(obj));
1258 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1261 cfs_spin_lock(&obj->oo_guard);
1262 osd_inode_getattr(env, obj->oo_inode, attr);
1263 cfs_spin_unlock(&obj->oo_guard);
1267 static int osd_declare_attr_set(const struct lu_env *env,
1268 struct dt_object *dt,
1269 const struct lu_attr *attr,
1270 struct thandle *handle)
1272 struct osd_thandle *oh;
1273 struct osd_object *obj;
1275 LASSERT(dt != NULL);
1276 LASSERT(handle != NULL);
1278 obj = osd_dt_obj(dt);
1279 LASSERT(osd_invariant(obj));
1281 oh = container_of0(handle, struct osd_thandle, ot_super);
1282 LASSERT(oh->ot_handle == NULL);
1284 OSD_DECLARE_OP(oh, attr_set);
1285 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
1287 if (attr && attr->la_valid & LA_UID) {
1289 osd_declare_qid(dt, oh, USRQUOTA, obj->oo_inode->i_uid,
1291 osd_declare_qid(dt, oh, USRQUOTA, attr->la_uid, NULL);
1293 if (attr && attr->la_valid & LA_GID) {
1295 osd_declare_qid(dt, oh, GRPQUOTA, obj->oo_inode->i_gid,
1297 osd_declare_qid(dt, oh, GRPQUOTA, attr->la_gid, NULL);
1303 static int osd_inode_setattr(const struct lu_env *env,
1304 struct inode *inode, const struct lu_attr *attr)
1308 bits = attr->la_valid;
1310 LASSERT(!(bits & LA_TYPE)); /* Huh? You want too much. */
1312 #ifdef HAVE_QUOTA_SUPPORT
1313 if ((bits & LA_UID && attr->la_uid != inode->i_uid) ||
1314 (bits & LA_GID && attr->la_gid != inode->i_gid)) {
1315 struct osd_ctxt *save = &osd_oti_get(env)->oti_ctxt;
1321 iattr.ia_valid |= ATTR_UID;
1323 iattr.ia_valid |= ATTR_GID;
1324 iattr.ia_uid = attr->la_uid;
1325 iattr.ia_gid = attr->la_gid;
1326 osd_push_ctxt(env, save);
1327 rc = ll_vfs_dq_transfer(inode, &iattr) ? -EDQUOT : 0;
1334 if (bits & LA_ATIME)
1335 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
1336 if (bits & LA_CTIME)
1337 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
1338 if (bits & LA_MTIME)
1339 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
1340 if (bits & LA_SIZE) {
1341 LDISKFS_I(inode)->i_disksize = attr->la_size;
1342 i_size_write(inode, attr->la_size);
1346 /* OSD should not change "i_blocks" which is used by quota.
1347 * "i_blocks" should be changed by ldiskfs only. */
1348 if (bits & LA_BLOCKS)
1349 inode->i_blocks = attr->la_blocks;
1352 inode->i_mode = (inode->i_mode & S_IFMT) |
1353 (attr->la_mode & ~S_IFMT);
1355 inode->i_uid = attr->la_uid;
1357 inode->i_gid = attr->la_gid;
1358 if (bits & LA_NLINK)
1359 inode->i_nlink = attr->la_nlink;
1361 inode->i_rdev = attr->la_rdev;
1363 if (bits & LA_FLAGS) {
1364 /* always keep S_NOCMTIME */
1365 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1371 static int osd_attr_set(const struct lu_env *env,
1372 struct dt_object *dt,
1373 const struct lu_attr *attr,
1374 struct thandle *handle,
1375 struct lustre_capa *capa)
1377 struct osd_object *obj = osd_dt_obj(dt);
1380 LASSERT(handle != NULL);
1381 LASSERT(dt_object_exists(dt));
1382 LASSERT(osd_invariant(obj));
1384 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1387 OSD_EXEC_OP(handle, attr_set);
1389 cfs_spin_lock(&obj->oo_guard);
1390 rc = osd_inode_setattr(env, obj->oo_inode, attr);
1391 cfs_spin_unlock(&obj->oo_guard);
1394 obj->oo_inode->i_sb->s_op->dirty_inode(obj->oo_inode);
1401 * XXX temporary solution.
1403 static int osd_create_pre(struct osd_thread_info *info, struct osd_object *obj,
1404 struct lu_attr *attr, struct thandle *th)
1409 static int osd_create_post(struct osd_thread_info *info, struct osd_object *obj,
1410 struct lu_attr *attr, struct thandle *th)
1412 osd_object_init0(obj);
1413 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
1414 unlock_new_inode(obj->oo_inode);
1418 struct dentry *osd_child_dentry_get(const struct lu_env *env,
1419 struct osd_object *obj,
1420 const char *name, const int namelen)
1422 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
1425 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1427 struct dt_allocation_hint *hint,
1431 struct osd_device *osd = osd_obj2dev(obj);
1432 struct osd_thandle *oth;
1433 struct dt_object *parent = NULL;
1434 struct inode *inode;
1435 #ifdef HAVE_QUOTA_SUPPORT
1436 struct osd_ctxt *save = &info->oti_ctxt;
1439 LINVRNT(osd_invariant(obj));
1440 LASSERT(obj->oo_inode == NULL);
1441 LASSERT(obj->oo_hl_head == NULL);
1443 if (S_ISDIR(mode) && ldiskfs_pdo) {
1444 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1445 if (obj->oo_hl_head == NULL)
1449 oth = container_of(th, struct osd_thandle, ot_super);
1450 LASSERT(oth->ot_handle->h_transaction != NULL);
1452 if (hint && hint->dah_parent)
1453 parent = hint->dah_parent;
1455 #ifdef HAVE_QUOTA_SUPPORT
1456 osd_push_ctxt(info->oti_env, save);
1458 inode = ldiskfs_create_inode(oth->ot_handle,
1459 parent ? osd_dt_obj(parent)->oo_inode :
1460 osd_sb(osd)->s_root->d_inode,
1462 #ifdef HAVE_QUOTA_SUPPORT
1465 if (!IS_ERR(inode)) {
1466 /* Do not update file c/mtime in ldiskfs.
1467 * NB: don't need any lock because no contention at this
1469 inode->i_flags |= S_NOCMTIME;
1470 obj->oo_inode = inode;
1473 if (obj->oo_hl_head != NULL) {
1474 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1475 obj->oo_hl_head = NULL;
1477 result = PTR_ERR(inode);
1479 LINVRNT(osd_invariant(obj));
1487 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1488 struct lu_attr *attr,
1489 struct dt_allocation_hint *hint,
1490 struct dt_object_format *dof,
1494 struct osd_thandle *oth;
1495 struct osd_device *osd = osd_obj2dev(obj);
1496 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
1498 LASSERT(S_ISDIR(attr->la_mode));
1500 oth = container_of(th, struct osd_thandle, ot_super);
1501 LASSERT(oth->ot_handle->h_transaction != NULL);
1502 result = osd_mkfile(info, obj, mode, hint, th);
1503 if (result == 0 && osd->od_iop_mode == 0) {
1504 LASSERT(obj->oo_inode != NULL);
1506 * XXX uh-oh... call low-level iam function directly.
1509 result = iam_lvar_create(obj->oo_inode, OSD_NAME_LEN, 4,
1510 sizeof (struct osd_fid_pack),
1516 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
1517 struct lu_attr *attr,
1518 struct dt_allocation_hint *hint,
1519 struct dt_object_format *dof,
1523 struct osd_thandle *oth;
1524 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
1526 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
1528 LASSERT(S_ISREG(attr->la_mode));
1530 oth = container_of(th, struct osd_thandle, ot_super);
1531 LASSERT(oth->ot_handle->h_transaction != NULL);
1533 result = osd_mkfile(info, obj, mode, hint, th);
1535 LASSERT(obj->oo_inode != NULL);
1536 if (feat->dif_flags & DT_IND_VARKEY)
1537 result = iam_lvar_create(obj->oo_inode,
1538 feat->dif_keysize_max,
1540 feat->dif_recsize_max,
1543 result = iam_lfix_create(obj->oo_inode,
1544 feat->dif_keysize_max,
1546 feat->dif_recsize_max,
1553 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1554 struct lu_attr *attr,
1555 struct dt_allocation_hint *hint,
1556 struct dt_object_format *dof,
1559 LASSERT(S_ISREG(attr->la_mode));
1560 return osd_mkfile(info, obj, (attr->la_mode &
1561 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1564 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1565 struct lu_attr *attr,
1566 struct dt_allocation_hint *hint,
1567 struct dt_object_format *dof,
1570 LASSERT(S_ISLNK(attr->la_mode));
1571 return osd_mkfile(info, obj, (attr->la_mode &
1572 (S_IFMT | S_IRWXUGO | S_ISVTX)), hint, th);
1575 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1576 struct lu_attr *attr,
1577 struct dt_allocation_hint *hint,
1578 struct dt_object_format *dof,
1581 cfs_umode_t mode = attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX);
1584 LINVRNT(osd_invariant(obj));
1585 LASSERT(obj->oo_inode == NULL);
1586 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1587 S_ISFIFO(mode) || S_ISSOCK(mode));
1589 result = osd_mkfile(info, obj, mode, hint, th);
1591 LASSERT(obj->oo_inode != NULL);
1592 init_special_inode(obj->oo_inode, mode, attr->la_rdev);
1594 LINVRNT(osd_invariant(obj));
1598 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
1600 struct dt_allocation_hint *hint,
1601 struct dt_object_format *dof,
1604 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1606 osd_obj_type_f result;
1622 result = osd_mk_index;
1633 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1634 struct dt_object *parent, cfs_umode_t child_mode)
1638 memset(ah, 0, sizeof(*ah));
1639 ah->dah_parent = parent;
1640 ah->dah_mode = child_mode;
1644 * Helper function for osd_object_create()
1646 * \retval 0, on success
1648 static int __osd_object_create(struct osd_thread_info *info,
1649 struct osd_object *obj, struct lu_attr *attr,
1650 struct dt_allocation_hint *hint,
1651 struct dt_object_format *dof,
1657 result = osd_create_pre(info, obj, attr, th);
1659 result = osd_create_type_f(dof->dof_type)(info, obj,
1660 attr, hint, dof, th);
1662 result = osd_create_post(info, obj, attr, th);
1668 * Helper function for osd_object_create()
1670 * \retval 0, on success
1672 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
1673 const struct lu_fid *fid, struct thandle *th)
1675 struct osd_thread_info *info = osd_oti_get(env);
1676 struct osd_inode_id *id = &info->oti_id;
1677 struct osd_device *osd = osd_obj2dev(obj);
1678 struct md_ucred *uc = md_ucred(env);
1680 LASSERT(obj->oo_inode != NULL);
1681 LASSERT(uc != NULL);
1683 id->oii_ino = obj->oo_inode->i_ino;
1684 id->oii_gen = obj->oo_inode->i_generation;
1686 return osd_oi_insert(info, osd, fid, id, th,
1687 uc->mu_cap & CFS_CAP_SYS_RESOURCE_MASK);
1690 static int osd_declare_object_create(const struct lu_env *env,
1691 struct dt_object *dt,
1692 struct lu_attr *attr,
1693 struct dt_allocation_hint *hint,
1694 struct dt_object_format *dof,
1695 struct thandle *handle)
1697 struct osd_thandle *oh;
1699 LASSERT(handle != NULL);
1701 oh = container_of0(handle, struct osd_thandle, ot_super);
1702 LASSERT(oh->ot_handle == NULL);
1704 OSD_DECLARE_OP(oh, create);
1705 oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
1706 /* XXX: So far, only normal fid needs be inserted into the oi,
1707 * things could be changed later. Revise following code then. */
1708 if (fid_is_norm(lu_object_fid(&dt->do_lu))) {
1709 OSD_DECLARE_OP(oh, insert);
1710 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
1712 /* If this is directory, then we expect . and .. to be inserted as
1713 * well. The one directory block always needs to be created for the
1714 * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
1715 * block), there is no danger of needing a tree for the first block.
1717 if (attr && S_ISDIR(attr->la_mode)) {
1718 OSD_DECLARE_OP(oh, insert);
1719 OSD_DECLARE_OP(oh, insert);
1720 oh->ot_credits += osd_dto_credits_noquota[DTO_WRITE_BASE];
1724 osd_declare_qid(dt, oh, USRQUOTA, attr->la_uid, NULL);
1725 osd_declare_qid(dt, oh, GRPQUOTA, attr->la_gid, NULL);
1730 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
1731 struct lu_attr *attr,
1732 struct dt_allocation_hint *hint,
1733 struct dt_object_format *dof,
1736 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1737 struct osd_object *obj = osd_dt_obj(dt);
1738 struct osd_thread_info *info = osd_oti_get(env);
1743 LINVRNT(osd_invariant(obj));
1744 LASSERT(!dt_object_exists(dt));
1745 LASSERT(osd_write_locked(env, obj));
1746 LASSERT(th != NULL);
1748 OSD_EXEC_OP(th, create);
1750 result = __osd_object_create(info, obj, attr, hint, dof, th);
1752 result = __osd_oi_insert(env, obj, fid, th);
1754 LASSERT(ergo(result == 0, dt_object_exists(dt)));
1755 LASSERT(osd_invariant(obj));
1760 * Called to destroy on-disk representation of the object
1762 * Concurrency: must be locked
1764 static int osd_declare_object_destroy(const struct lu_env *env,
1765 struct dt_object *dt,
1768 struct osd_object *obj = osd_dt_obj(dt);
1769 struct inode *inode = obj->oo_inode;
1770 struct osd_thandle *oh;
1774 oh = container_of0(th, struct osd_thandle, ot_super);
1775 LASSERT(oh->ot_handle == NULL);
1778 OSD_DECLARE_OP(oh, destroy);
1779 OSD_DECLARE_OP(oh, delete);
1780 oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_DELETE];
1781 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
1783 osd_declare_qid(dt, oh, USRQUOTA, inode->i_uid, inode);
1784 osd_declare_qid(dt, oh, GRPQUOTA, inode->i_gid, inode);
1789 static int osd_object_destroy(const struct lu_env *env,
1790 struct dt_object *dt,
1793 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1794 struct osd_object *obj = osd_dt_obj(dt);
1795 struct inode *inode = obj->oo_inode;
1796 struct osd_device *osd = osd_obj2dev(obj);
1797 struct osd_thandle *oh;
1801 oh = container_of0(th, struct osd_thandle, ot_super);
1802 LASSERT(oh->ot_handle);
1804 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
1806 if (S_ISDIR(inode->i_mode)) {
1807 LASSERT(osd_inode_unlinked(inode) ||
1808 inode->i_nlink == 1);
1809 cfs_spin_lock(&obj->oo_guard);
1811 cfs_spin_unlock(&obj->oo_guard);
1812 inode->i_sb->s_op->dirty_inode(inode);
1814 LASSERT(osd_inode_unlinked(inode));
1817 OSD_EXEC_OP(th, destroy);
1819 result = osd_oi_delete(osd_oti_get(env), osd, fid, th);
1821 /* XXX: add to ext3 orphan list */
1822 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
1824 /* not needed in the cache anymore */
1825 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
1831 * Helper function for osd_xattr_set()
1833 static int __osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
1834 const struct lu_buf *buf, const char *name, int fl)
1836 struct osd_object *obj = osd_dt_obj(dt);
1837 struct inode *inode = obj->oo_inode;
1838 struct osd_thread_info *info = osd_oti_get(env);
1839 struct dentry *dentry = &info->oti_child_dentry;
1843 LASSERT(dt_object_exists(dt));
1844 LASSERT(inode->i_op != NULL && inode->i_op->setxattr != NULL);
1845 LASSERT(osd_write_locked(env, obj));
1847 if (fl & LU_XATTR_REPLACE)
1848 fs_flags |= XATTR_REPLACE;
1850 if (fl & LU_XATTR_CREATE)
1851 fs_flags |= XATTR_CREATE;
1853 dentry->d_inode = inode;
1854 rc = inode->i_op->setxattr(dentry, name, buf->lb_buf,
1855 buf->lb_len, fs_flags);
1860 * Put the fid into lustre_mdt_attrs, and then place the structure
1861 * inode's ea. This fid should not be altered during the life time
1864 * \retval +ve, on success
1865 * \retval -ve, on error
1867 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
1869 static int osd_ea_fid_set(const struct lu_env *env, struct dt_object *dt,
1870 const struct lu_fid *fid)
1872 struct osd_thread_info *info = osd_oti_get(env);
1873 struct lustre_mdt_attrs *mdt_attrs = &info->oti_mdt_attrs;
1875 lustre_lma_init(mdt_attrs, fid);
1876 lustre_lma_swab(mdt_attrs);
1877 return __osd_xattr_set(env, dt,
1878 osd_buf_get(env, mdt_attrs, sizeof *mdt_attrs),
1879 XATTR_NAME_LMA, LU_XATTR_CREATE);
1884 * Helper function to form igif
1886 static inline void osd_igif_get(const struct lu_env *env, struct inode *inode,
1889 LU_IGIF_BUILD(fid, inode->i_ino, inode->i_generation);
1893 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
1894 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
1895 * To have compatilibility with 1.8 ldiskfs driver we need to have
1896 * magic number at start of fid data.
1897 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
1900 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
1901 const struct dt_rec *fid)
1903 param->edp_magic = LDISKFS_LUFID_MAGIC;
1904 param->edp_len = sizeof(struct lu_fid) + 1;
1906 fid_cpu_to_be((struct lu_fid *)param->edp_data,
1907 (struct lu_fid *)fid);
1911 * Try to read the fid from inode ea into dt_rec, if return value
1912 * i.e. rc is +ve, then we got fid, otherwise we will have to form igif
1914 * \param fid object fid.
1916 * \retval 0 on success
1918 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
1919 __u32 ino, struct lu_fid *fid)
1921 struct osd_thread_info *info = osd_oti_get(env);
1922 struct lustre_mdt_attrs *mdt_attrs = &info->oti_mdt_attrs;
1923 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1924 struct dentry *dentry = &info->oti_child_dentry;
1925 struct osd_inode_id *id = &info->oti_id;
1926 struct osd_device *dev;
1927 struct inode *inode;
1931 dev = osd_dev(ldev);
1934 id->oii_gen = OSD_OII_NOGEN;
1936 inode = osd_iget(info, dev, id);
1937 if (IS_ERR(inode)) {
1938 rc = PTR_ERR(inode);
1941 dentry->d_inode = inode;
1943 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
1944 rc = inode->i_op->getxattr(dentry, XATTR_NAME_LMA, (void *)mdt_attrs,
1947 /* Check LMA compatibility */
1949 (mdt_attrs->lma_incompat & ~cpu_to_le32(LMA_INCOMPAT_SUPP))) {
1950 CWARN("Inode %lx: Unsupported incompat LMA feature(s) %#x\n",
1951 inode->i_ino, le32_to_cpu(mdt_attrs->lma_incompat) &
1952 ~LMA_INCOMPAT_SUPP);
1957 lustre_lma_swab(mdt_attrs);
1958 memcpy(fid, &mdt_attrs->lma_self_fid, sizeof(*fid));
1960 } else if (rc == -ENODATA) {
1961 osd_igif_get(env, inode, fid);
1970 * OSD layer object create function for interoperability mode (b11826).
1971 * This is mostly similar to osd_object_create(). Only difference being, fid is
1972 * inserted into inode ea here.
1974 * \retval 0, on success
1975 * \retval -ve, on error
1977 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
1978 struct lu_attr *attr,
1979 struct dt_allocation_hint *hint,
1980 struct dt_object_format *dof,
1983 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1984 struct osd_object *obj = osd_dt_obj(dt);
1985 struct osd_thread_info *info = osd_oti_get(env);
1990 LASSERT(osd_invariant(obj));
1991 LASSERT(!dt_object_exists(dt));
1992 LASSERT(osd_write_locked(env, obj));
1993 LASSERT(th != NULL);
1995 OSD_EXEC_OP(th, create);
1997 result = __osd_object_create(info, obj, attr, hint, dof, th);
1998 /* objects under osd root shld have igif fid, so dont add fid EA */
1999 if (result == 0 && fid_seq(fid) >= FID_SEQ_NORMAL)
2000 result = osd_ea_fid_set(env, dt, fid);
2003 result = __osd_oi_insert(env, obj, fid, th);
2005 LASSERT(ergo(result == 0, dt_object_exists(dt)));
2006 LINVRNT(osd_invariant(obj));
2010 static int osd_declare_object_ref_add(const struct lu_env *env,
2011 struct dt_object *dt,
2012 struct thandle *handle)
2014 struct osd_thandle *oh;
2016 /* it's possible that object doesn't exist yet */
2017 LASSERT(handle != NULL);
2019 oh = container_of0(handle, struct osd_thandle, ot_super);
2020 LASSERT(oh->ot_handle == NULL);
2022 OSD_DECLARE_OP(oh, ref_add);
2023 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2029 * Concurrency: @dt is write locked.
2031 static int osd_object_ref_add(const struct lu_env *env,
2032 struct dt_object *dt, struct thandle *th)
2034 struct osd_object *obj = osd_dt_obj(dt);
2035 struct inode *inode = obj->oo_inode;
2037 LINVRNT(osd_invariant(obj));
2038 LASSERT(dt_object_exists(dt));
2039 LASSERT(osd_write_locked(env, obj));
2040 LASSERT(th != NULL);
2042 OSD_EXEC_OP(th, ref_add);
2045 * DIR_NLINK feature is set for compatibility reasons if:
2046 * 1) nlinks > LDISKFS_LINK_MAX, or
2047 * 2) nlinks == 2, since this indicates i_nlink was previously 1.
2049 * It is easier to always set this flag (rather than check and set),
2050 * since it has less overhead, and the superblock will be dirtied
2051 * at some point. Both e2fsprogs and any Lustre-supported ldiskfs
2052 * do not actually care whether this flag is set or not.
2054 cfs_spin_lock(&obj->oo_guard);
2056 if (S_ISDIR(inode->i_mode) && inode->i_nlink > 1) {
2057 if (inode->i_nlink >= LDISKFS_LINK_MAX ||
2058 inode->i_nlink == 2)
2061 LASSERT(inode->i_nlink < LDISKFS_LINK_MAX);
2062 cfs_spin_unlock(&obj->oo_guard);
2063 inode->i_sb->s_op->dirty_inode(inode);
2064 LINVRNT(osd_invariant(obj));
2069 static int osd_declare_object_ref_del(const struct lu_env *env,
2070 struct dt_object *dt,
2071 struct thandle *handle)
2073 struct osd_thandle *oh;
2075 LASSERT(dt_object_exists(dt));
2076 LASSERT(handle != NULL);
2078 oh = container_of0(handle, struct osd_thandle, ot_super);
2079 LASSERT(oh->ot_handle == NULL);
2081 OSD_DECLARE_OP(oh, ref_del);
2082 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2088 * Concurrency: @dt is write locked.
2090 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2093 struct osd_object *obj = osd_dt_obj(dt);
2094 struct inode *inode = obj->oo_inode;
2096 LINVRNT(osd_invariant(obj));
2097 LASSERT(dt_object_exists(dt));
2098 LASSERT(osd_write_locked(env, obj));
2099 LASSERT(th != NULL);
2101 OSD_EXEC_OP(th, ref_del);
2103 cfs_spin_lock(&obj->oo_guard);
2104 LASSERT(inode->i_nlink > 0);
2106 /* If this is/was a many-subdir directory (nlink > LDISKFS_LINK_MAX)
2107 * then the nlink count is 1. Don't let it be set to 0 or the directory
2108 * inode will be deleted incorrectly. */
2109 if (S_ISDIR(inode->i_mode) && inode->i_nlink == 0)
2111 cfs_spin_unlock(&obj->oo_guard);
2112 inode->i_sb->s_op->dirty_inode(inode);
2113 LINVRNT(osd_invariant(obj));
2119 * Get the 64-bit version for an inode.
2121 static int osd_object_version_get(const struct lu_env *env,
2122 struct dt_object *dt, dt_obj_version_t *ver)
2124 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2126 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2127 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2128 *ver = LDISKFS_I(inode)->i_fs_version;
2133 * Concurrency: @dt is read locked.
2135 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2136 struct lu_buf *buf, const char *name,
2137 struct lustre_capa *capa)
2139 struct osd_object *obj = osd_dt_obj(dt);
2140 struct inode *inode = obj->oo_inode;
2141 struct osd_thread_info *info = osd_oti_get(env);
2142 struct dentry *dentry = &info->oti_obj_dentry;
2144 /* version get is not real XATTR but uses xattr API */
2145 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2146 /* for version we are just using xattr API but change inode
2148 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2149 osd_object_version_get(env, dt, buf->lb_buf);
2150 return sizeof(dt_obj_version_t);
2153 LASSERT(dt_object_exists(dt));
2154 LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
2155 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
2157 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2160 dentry->d_inode = inode;
2161 return inode->i_op->getxattr(dentry, name, buf->lb_buf, buf->lb_len);
2165 static int osd_declare_xattr_set(const struct lu_env *env,
2166 struct dt_object *dt,
2167 const struct lu_buf *buf, const char *name,
2168 int fl, struct thandle *handle)
2170 struct osd_thandle *oh;
2172 LASSERT(handle != NULL);
2174 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2175 /* no credits for version */
2179 oh = container_of0(handle, struct osd_thandle, ot_super);
2180 LASSERT(oh->ot_handle == NULL);
2182 OSD_DECLARE_OP(oh, xattr_set);
2183 oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2189 * Set the 64-bit version for object
2191 static void osd_object_version_set(const struct lu_env *env,
2192 struct dt_object *dt,
2193 dt_obj_version_t *new_version)
2195 struct inode *inode = osd_dt_obj(dt)->oo_inode;
2197 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
2198 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2200 LDISKFS_I(inode)->i_fs_version = *new_version;
2201 /** Version is set after all inode operations are finished,
2202 * so we should mark it dirty here */
2203 inode->i_sb->s_op->dirty_inode(inode);
2207 * Concurrency: @dt is write locked.
2209 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2210 const struct lu_buf *buf, const char *name, int fl,
2211 struct thandle *handle, struct lustre_capa *capa)
2213 LASSERT(handle != NULL);
2215 /* version set is not real XATTR */
2216 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2217 /* for version we are just using xattr API but change inode
2219 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2220 osd_object_version_set(env, dt, buf->lb_buf);
2221 return sizeof(dt_obj_version_t);
2224 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2227 OSD_EXEC_OP(handle, xattr_set);
2228 return __osd_xattr_set(env, dt, buf, name, fl);
2232 * Concurrency: @dt is read locked.
2234 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
2235 struct lu_buf *buf, struct lustre_capa *capa)
2237 struct osd_object *obj = osd_dt_obj(dt);
2238 struct inode *inode = obj->oo_inode;
2239 struct osd_thread_info *info = osd_oti_get(env);
2240 struct dentry *dentry = &info->oti_obj_dentry;
2242 LASSERT(dt_object_exists(dt));
2243 LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
2244 LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
2246 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2249 dentry->d_inode = inode;
2250 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
2253 static int osd_declare_xattr_del(const struct lu_env *env,
2254 struct dt_object *dt, const char *name,
2255 struct thandle *handle)
2257 struct osd_thandle *oh;
2259 LASSERT(dt_object_exists(dt));
2260 LASSERT(handle != NULL);
2262 oh = container_of0(handle, struct osd_thandle, ot_super);
2263 LASSERT(oh->ot_handle == NULL);
2265 OSD_DECLARE_OP(oh, xattr_set);
2266 oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2272 * Concurrency: @dt is write locked.
2274 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
2275 const char *name, struct thandle *handle,
2276 struct lustre_capa *capa)
2278 struct osd_object *obj = osd_dt_obj(dt);
2279 struct inode *inode = obj->oo_inode;
2280 struct osd_thread_info *info = osd_oti_get(env);
2281 struct dentry *dentry = &info->oti_obj_dentry;
2284 LASSERT(dt_object_exists(dt));
2285 LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
2286 LASSERT(osd_write_locked(env, obj));
2287 LASSERT(handle != NULL);
2289 if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2292 OSD_EXEC_OP(handle, xattr_set);
2294 dentry->d_inode = inode;
2295 rc = inode->i_op->removexattr(dentry, name);
2299 static struct obd_capa *osd_capa_get(const struct lu_env *env,
2300 struct dt_object *dt,
2301 struct lustre_capa *old,
2304 struct osd_thread_info *info = osd_oti_get(env);
2305 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2306 struct osd_object *obj = osd_dt_obj(dt);
2307 struct osd_device *dev = osd_obj2dev(obj);
2308 struct lustre_capa_key *key = &info->oti_capa_key;
2309 struct lustre_capa *capa = &info->oti_capa;
2310 struct obd_capa *oc;
2311 struct md_capainfo *ci;
2315 if (!dev->od_fl_capa)
2316 RETURN(ERR_PTR(-ENOENT));
2318 LASSERT(dt_object_exists(dt));
2319 LINVRNT(osd_invariant(obj));
2321 /* renewal sanity check */
2322 if (old && osd_object_auth(env, dt, old, opc))
2323 RETURN(ERR_PTR(-EACCES));
2325 ci = md_capainfo(env);
2327 RETURN(ERR_PTR(-ENOENT));
2329 switch (ci->mc_auth) {
2333 capa->lc_uid = obj->oo_inode->i_uid;
2334 capa->lc_gid = obj->oo_inode->i_gid;
2335 capa->lc_flags = LC_ID_PLAIN;
2337 case LC_ID_CONVERT: {
2340 s[0] = obj->oo_inode->i_uid;
2341 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
2342 s[2] = obj->oo_inode->i_gid;
2343 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
2344 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
2346 RETURN(ERR_PTR(rc));
2348 capa->lc_uid = ((__u64)d[1] << 32) | d[0];
2349 capa->lc_gid = ((__u64)d[3] << 32) | d[2];
2350 capa->lc_flags = LC_ID_CONVERT;
2354 RETURN(ERR_PTR(-EINVAL));
2357 capa->lc_fid = *fid;
2359 capa->lc_flags |= dev->od_capa_alg << 24;
2360 capa->lc_timeout = dev->od_capa_timeout;
2361 capa->lc_expiry = 0;
2363 oc = capa_lookup(dev->od_capa_hash, capa, 1);
2365 LASSERT(!capa_is_expired(oc));
2369 cfs_spin_lock(&capa_lock);
2370 *key = dev->od_capa_keys[1];
2371 cfs_spin_unlock(&capa_lock);
2373 capa->lc_keyid = key->lk_keyid;
2374 capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
2376 rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
2378 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
2379 RETURN(ERR_PTR(rc));
2382 oc = capa_add(dev->od_capa_hash, capa);
2386 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
2388 struct osd_object *obj = osd_dt_obj(dt);
2389 struct inode *inode = obj->oo_inode;
2390 struct osd_thread_info *info = osd_oti_get(env);
2391 struct dentry *dentry = &info->oti_obj_dentry;
2392 struct file *file = &info->oti_file;
2397 dentry->d_inode = inode;
2398 file->f_dentry = dentry;
2399 file->f_mapping = inode->i_mapping;
2400 file->f_op = inode->i_fop;
2401 LOCK_INODE_MUTEX(inode);
2402 rc = file->f_op->fsync(file, dentry, 0);
2403 UNLOCK_INODE_MUTEX(inode);
2407 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
2410 struct osd_object *obj = osd_dt_obj(dt);
2413 *data = (void *)obj->oo_inode;
2421 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
2422 const struct dt_index_features *feat)
2424 struct iam_descr *descr;
2426 if (osd_object_is_root(o))
2427 return feat == &dt_directory_features;
2429 LASSERT(o->oo_dir != NULL);
2431 descr = o->oo_dir->od_container.ic_descr;
2432 if (feat == &dt_directory_features) {
2433 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
2439 feat->dif_keysize_min <= descr->id_key_size &&
2440 descr->id_key_size <= feat->dif_keysize_max &&
2441 feat->dif_recsize_min <= descr->id_rec_size &&
2442 descr->id_rec_size <= feat->dif_recsize_max &&
2443 !(feat->dif_flags & (DT_IND_VARKEY |
2444 DT_IND_VARREC | DT_IND_NONUNQ)) &&
2445 ergo(feat->dif_flags & DT_IND_UPDATE,
2446 1 /* XXX check that object (and file system) is
2451 static int osd_iam_container_init(const struct lu_env *env,
2452 struct osd_object *obj,
2453 struct osd_directory *dir)
2455 struct iam_container *bag = &dir->od_container;
2458 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
2462 result = iam_container_setup(bag);
2466 if (osd_obj2dev(obj)->od_iop_mode) {
2467 u32 ptr = bag->ic_descr->id_ops->id_root_ptr(bag);
2469 bag->ic_root_bh = ldiskfs_bread(NULL, obj->oo_inode,
2475 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
2477 iam_container_fini(bag);
2484 * Concurrency: no external locking is necessary.
2486 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
2487 const struct dt_index_features *feat)
2491 struct osd_object *obj = osd_dt_obj(dt);
2492 struct osd_device *osd = osd_obj2dev(obj);
2494 LINVRNT(osd_invariant(obj));
2495 LASSERT(dt_object_exists(dt));
2497 if (osd_object_is_root(obj)) {
2498 dt->do_index_ops = &osd_index_ea_ops;
2500 } else if (feat == &dt_directory_features && osd->od_iop_mode) {
2501 dt->do_index_ops = &osd_index_ea_ops;
2502 if (S_ISDIR(obj->oo_inode->i_mode))
2507 } else if (!osd_has_index(obj)) {
2508 struct osd_directory *dir;
2513 cfs_spin_lock(&obj->oo_guard);
2514 if (obj->oo_dir == NULL)
2518 * Concurrent thread allocated container data.
2521 cfs_spin_unlock(&obj->oo_guard);
2523 * Now, that we have container data, serialize its
2526 cfs_down_write(&obj->oo_ext_idx_sem);
2528 * recheck under lock.
2530 if (!osd_has_index(obj))
2531 result = osd_iam_container_init(env, obj, dir);
2534 cfs_up_write(&obj->oo_ext_idx_sem);
2542 if (result == 0 && ea_dir == 0) {
2543 if (!osd_iam_index_probe(env, obj, feat))
2546 LINVRNT(osd_invariant(obj));
2551 static const struct dt_object_operations osd_obj_ops = {
2552 .do_read_lock = osd_object_read_lock,
2553 .do_write_lock = osd_object_write_lock,
2554 .do_read_unlock = osd_object_read_unlock,
2555 .do_write_unlock = osd_object_write_unlock,
2556 .do_write_locked = osd_object_write_locked,
2557 .do_attr_get = osd_attr_get,
2558 .do_declare_attr_set = osd_declare_attr_set,
2559 .do_attr_set = osd_attr_set,
2560 .do_ah_init = osd_ah_init,
2561 .do_declare_create = osd_declare_object_create,
2562 .do_create = osd_object_create,
2563 .do_declare_destroy = osd_declare_object_destroy,
2564 .do_destroy = osd_object_destroy,
2565 .do_index_try = osd_index_try,
2566 .do_declare_ref_add = osd_declare_object_ref_add,
2567 .do_ref_add = osd_object_ref_add,
2568 .do_declare_ref_del = osd_declare_object_ref_del,
2569 .do_ref_del = osd_object_ref_del,
2570 .do_xattr_get = osd_xattr_get,
2571 .do_declare_xattr_set = osd_declare_xattr_set,
2572 .do_xattr_set = osd_xattr_set,
2573 .do_declare_xattr_del = osd_declare_xattr_del,
2574 .do_xattr_del = osd_xattr_del,
2575 .do_xattr_list = osd_xattr_list,
2576 .do_capa_get = osd_capa_get,
2577 .do_object_sync = osd_object_sync,
2578 .do_data_get = osd_data_get,
2582 * dt_object_operations for interoperability mode
2583 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
2585 static const struct dt_object_operations osd_obj_ea_ops = {
2586 .do_read_lock = osd_object_read_lock,
2587 .do_write_lock = osd_object_write_lock,
2588 .do_read_unlock = osd_object_read_unlock,
2589 .do_write_unlock = osd_object_write_unlock,
2590 .do_write_locked = osd_object_write_locked,
2591 .do_attr_get = osd_attr_get,
2592 .do_declare_attr_set = osd_declare_attr_set,
2593 .do_attr_set = osd_attr_set,
2594 .do_ah_init = osd_ah_init,
2595 .do_declare_create = osd_declare_object_create,
2596 .do_create = osd_object_ea_create,
2597 .do_declare_destroy = osd_declare_object_destroy,
2598 .do_destroy = osd_object_destroy,
2599 .do_index_try = osd_index_try,
2600 .do_declare_ref_add = osd_declare_object_ref_add,
2601 .do_ref_add = osd_object_ref_add,
2602 .do_declare_ref_del = osd_declare_object_ref_del,
2603 .do_ref_del = osd_object_ref_del,
2604 .do_xattr_get = osd_xattr_get,
2605 .do_declare_xattr_set = osd_declare_xattr_set,
2606 .do_xattr_set = osd_xattr_set,
2607 .do_declare_xattr_del = osd_declare_xattr_del,
2608 .do_xattr_del = osd_xattr_del,
2609 .do_xattr_list = osd_xattr_list,
2610 .do_capa_get = osd_capa_get,
2611 .do_object_sync = osd_object_sync,
2612 .do_data_get = osd_data_get,
2615 static int osd_index_declare_iam_delete(const struct lu_env *env,
2616 struct dt_object *dt,
2617 const struct dt_key *key,
2618 struct thandle *handle)
2620 struct osd_thandle *oh;
2622 oh = container_of0(handle, struct osd_thandle, ot_super);
2623 LASSERT(oh->ot_handle == NULL);
2625 OSD_DECLARE_OP(oh, delete);
2626 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2632 * delete a (key, value) pair from index \a dt specified by \a key
2634 * \param dt osd index object
2635 * \param key key for index
2636 * \param rec record reference
2637 * \param handle transaction handler
2640 * \retval -ve failure
2643 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
2644 const struct dt_key *key,
2645 struct thandle *handle,
2646 struct lustre_capa *capa)
2648 struct osd_object *obj = osd_dt_obj(dt);
2649 struct osd_thandle *oh;
2650 struct iam_path_descr *ipd;
2651 struct iam_container *bag = &obj->oo_dir->od_container;
2656 LINVRNT(osd_invariant(obj));
2657 LASSERT(dt_object_exists(dt));
2658 LASSERT(bag->ic_object == obj->oo_inode);
2659 LASSERT(handle != NULL);
2661 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2664 OSD_EXEC_OP(handle, delete);
2666 ipd = osd_idx_ipd_get(env, bag);
2667 if (unlikely(ipd == NULL))
2670 oh = container_of0(handle, struct osd_thandle, ot_super);
2671 LASSERT(oh->ot_handle != NULL);
2672 LASSERT(oh->ot_handle->h_transaction != NULL);
2674 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
2675 osd_ipd_put(env, bag, ipd);
2676 LINVRNT(osd_invariant(obj));
2680 static int osd_index_declare_ea_delete(const struct lu_env *env,
2681 struct dt_object *dt,
2682 const struct dt_key *key,
2683 struct thandle *handle)
2685 struct osd_thandle *oh;
2687 LASSERT(dt_object_exists(dt));
2688 LASSERT(handle != NULL);
2690 oh = container_of0(handle, struct osd_thandle, ot_super);
2691 LASSERT(oh->ot_handle == NULL);
2693 OSD_DECLARE_OP(oh, delete);
2694 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2696 LASSERT(osd_dt_obj(dt)->oo_inode);
2697 osd_declare_qid(dt, oh, USRQUOTA, osd_dt_obj(dt)->oo_inode->i_uid,
2698 osd_dt_obj(dt)->oo_inode);
2699 osd_declare_qid(dt, oh, GRPQUOTA, osd_dt_obj(dt)->oo_inode->i_gid,
2700 osd_dt_obj(dt)->oo_inode);
2705 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
2708 struct osd_fid_pack *rec;
2711 if (de->file_type & LDISKFS_DIRENT_LUFID) {
2712 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
2713 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
2719 * Index delete function for interoperability mode (b11826).
2720 * It will remove the directory entry added by osd_index_ea_insert().
2721 * This entry is needed to maintain name->fid mapping.
2723 * \param key, key i.e. file entry to be deleted
2725 * \retval 0, on success
2726 * \retval -ve, on error
2728 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
2729 const struct dt_key *key,
2730 struct thandle *handle,
2731 struct lustre_capa *capa)
2733 struct osd_object *obj = osd_dt_obj(dt);
2734 struct inode *dir = obj->oo_inode;
2735 struct dentry *dentry;
2736 struct osd_thandle *oh;
2737 struct ldiskfs_dir_entry_2 *de;
2738 struct buffer_head *bh;
2739 struct htree_lock *hlock = NULL;
2744 LINVRNT(osd_invariant(obj));
2745 LASSERT(dt_object_exists(dt));
2746 LASSERT(handle != NULL);
2748 OSD_EXEC_OP(handle, delete);
2750 oh = container_of(handle, struct osd_thandle, ot_super);
2751 LASSERT(oh->ot_handle != NULL);
2752 LASSERT(oh->ot_handle->h_transaction != NULL);
2754 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2757 dentry = osd_child_dentry_get(env, obj,
2758 (char *)key, strlen((char *)key));
2760 if (obj->oo_hl_head != NULL) {
2761 hlock = osd_oti_get(env)->oti_hlock;
2762 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
2763 dir, LDISKFS_HLOCK_DEL);
2765 cfs_down_write(&obj->oo_ext_idx_sem);
2768 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
2770 rc = ldiskfs_delete_entry(oh->ot_handle,
2777 ldiskfs_htree_unlock(hlock);
2779 cfs_up_write(&obj->oo_ext_idx_sem);
2781 LASSERT(osd_invariant(obj));
2786 * Lookup index for \a key and copy record to \a rec.
2788 * \param dt osd index object
2789 * \param key key for index
2790 * \param rec record reference
2792 * \retval +ve success : exact mach
2793 * \retval 0 return record with key not greater than \a key
2794 * \retval -ve failure
2796 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
2797 struct dt_rec *rec, const struct dt_key *key,
2798 struct lustre_capa *capa)
2800 struct osd_object *obj = osd_dt_obj(dt);
2801 struct iam_path_descr *ipd;
2802 struct iam_container *bag = &obj->oo_dir->od_container;
2803 struct osd_thread_info *oti = osd_oti_get(env);
2804 struct iam_iterator *it = &oti->oti_idx_it;
2805 struct iam_rec *iam_rec;
2810 LASSERT(osd_invariant(obj));
2811 LASSERT(dt_object_exists(dt));
2812 LASSERT(bag->ic_object == obj->oo_inode);
2814 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
2817 ipd = osd_idx_ipd_get(env, bag);
2821 /* got ipd now we can start iterator. */
2822 iam_it_init(it, bag, 0, ipd);
2824 rc = iam_it_get(it, (struct iam_key *)key);
2826 if (S_ISDIR(obj->oo_inode->i_mode))
2827 iam_rec = (struct iam_rec *)oti->oti_ldp;
2829 iam_rec = (struct iam_rec *) rec;
2831 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
2832 if (S_ISDIR(obj->oo_inode->i_mode))
2833 osd_fid_unpack((struct lu_fid *) rec,
2834 (struct osd_fid_pack *)iam_rec);
2838 osd_ipd_put(env, bag, ipd);
2840 LINVRNT(osd_invariant(obj));
2845 static int osd_index_declare_iam_insert(const struct lu_env *env,
2846 struct dt_object *dt,
2847 const struct dt_rec *rec,
2848 const struct dt_key *key,
2849 struct thandle *handle)
2851 struct osd_thandle *oh;
2853 LASSERT(dt_object_exists(dt));
2854 LASSERT(handle != NULL);
2856 oh = container_of0(handle, struct osd_thandle, ot_super);
2857 LASSERT(oh->ot_handle == NULL);
2859 OSD_DECLARE_OP(oh, insert);
2860 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
2866 * Inserts (key, value) pair in \a dt index object.
2868 * \param dt osd index object
2869 * \param key key for index
2870 * \param rec record reference
2871 * \param th transaction handler
2874 * \retval -ve failure
2876 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
2877 const struct dt_rec *rec,
2878 const struct dt_key *key, struct thandle *th,
2879 struct lustre_capa *capa, int ignore_quota)
2881 struct osd_object *obj = osd_dt_obj(dt);
2882 struct iam_path_descr *ipd;
2883 struct osd_thandle *oh;
2884 struct iam_container *bag = &obj->oo_dir->od_container;
2885 #ifdef HAVE_QUOTA_SUPPORT
2886 cfs_cap_t save = cfs_curproc_cap_pack();
2888 struct osd_thread_info *oti = osd_oti_get(env);
2889 struct iam_rec *iam_rec = (struct iam_rec *)oti->oti_ldp;
2894 LINVRNT(osd_invariant(obj));
2895 LASSERT(dt_object_exists(dt));
2896 LASSERT(bag->ic_object == obj->oo_inode);
2897 LASSERT(th != NULL);
2899 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
2902 OSD_EXEC_OP(th, insert);
2904 ipd = osd_idx_ipd_get(env, bag);
2905 if (unlikely(ipd == NULL))
2908 oh = container_of0(th, struct osd_thandle, ot_super);
2909 LASSERT(oh->ot_handle != NULL);
2910 LASSERT(oh->ot_handle->h_transaction != NULL);
2911 #ifdef HAVE_QUOTA_SUPPORT
2913 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
2915 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
2917 if (S_ISDIR(obj->oo_inode->i_mode))
2918 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
2920 iam_rec = (struct iam_rec *) rec;
2921 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
2923 #ifdef HAVE_QUOTA_SUPPORT
2924 cfs_curproc_cap_unpack(save);
2926 osd_ipd_put(env, bag, ipd);
2927 LINVRNT(osd_invariant(obj));
2932 * Calls ldiskfs_add_entry() to add directory entry
2933 * into the directory. This is required for
2934 * interoperability mode (b11826)
2936 * \retval 0, on success
2937 * \retval -ve, on error
2939 static int __osd_ea_add_rec(struct osd_thread_info *info,
2940 struct osd_object *pobj, struct inode *cinode,
2941 const char *name, const struct dt_rec *fid,
2942 struct htree_lock *hlock, struct thandle *th)
2944 struct ldiskfs_dentry_param *ldp;
2945 struct dentry *child;
2946 struct osd_thandle *oth;
2949 oth = container_of(th, struct osd_thandle, ot_super);
2950 LASSERT(oth->ot_handle != NULL);
2951 LASSERT(oth->ot_handle->h_transaction != NULL);
2953 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
2955 /* XXX: remove fid_is_igif() check here.
2956 * IGIF check is just to handle insertion of .. when it is 'ROOT',
2957 * it is IGIF now but needs FID in dir entry as well for readdir
2959 * LU-838 should fix that and remove fid_is_igif() check */
2960 if (fid_is_igif((struct lu_fid *)fid) ||
2961 fid_is_norm((struct lu_fid *)fid)) {
2962 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
2963 osd_get_ldiskfs_dirent_param(ldp, fid);
2964 child->d_fsdata = (void *)ldp;
2966 child->d_fsdata = NULL;
2968 rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
2974 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
2975 * into the directory.Also sets flags into osd object to
2976 * indicate dot and dotdot are created. This is required for
2977 * interoperability mode (b11826)
2979 * \param dir directory for dot and dotdot fixup.
2980 * \param obj child object for linking
2982 * \retval 0, on success
2983 * \retval -ve, on error
2985 static int osd_add_dot_dotdot(struct osd_thread_info *info,
2986 struct osd_object *dir,
2987 struct inode *parent_dir, const char *name,
2988 const struct dt_rec *dot_fid,
2989 const struct dt_rec *dot_dot_fid,
2992 struct inode *inode = dir->oo_inode;
2993 struct ldiskfs_dentry_param *dot_ldp;
2994 struct ldiskfs_dentry_param *dot_dot_ldp;
2995 struct osd_thandle *oth;
2998 oth = container_of(th, struct osd_thandle, ot_super);
2999 LASSERT(oth->ot_handle->h_transaction != NULL);
3000 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
3002 if (strcmp(name, dot) == 0) {
3003 if (dir->oo_compat_dot_created) {
3006 LASSERT(inode == parent_dir);
3007 dir->oo_compat_dot_created = 1;
3010 } else if(strcmp(name, dotdot) == 0) {
3011 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3012 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3014 if (!dir->oo_compat_dot_created)
3016 if (!fid_is_igif((struct lu_fid *)dot_fid)) {
3017 osd_get_ldiskfs_dirent_param(dot_ldp, dot_fid);
3018 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3023 /* in case of rename, dotdot is already created */
3024 if (dir->oo_compat_dotdot_created) {
3025 return __osd_ea_add_rec(info, dir, parent_dir, name,
3026 dot_dot_fid, NULL, th);
3029 result = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3030 inode, dot_ldp, dot_dot_ldp);
3032 dir->oo_compat_dotdot_created = 1;
3040 * It will call the appropriate osd_add* function and return the
3041 * value, return by respective functions.
3043 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
3044 struct inode *cinode, const char *name,
3045 const struct dt_rec *fid, struct thandle *th)
3047 struct osd_thread_info *info = osd_oti_get(env);
3048 struct htree_lock *hlock;
3051 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
3053 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
3055 if (hlock != NULL) {
3056 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3059 cfs_down_write(&pobj->oo_ext_idx_sem);
3061 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
3062 (struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
3065 if (hlock != NULL) {
3066 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
3067 pobj->oo_inode, LDISKFS_HLOCK_ADD);
3069 cfs_down_write(&pobj->oo_ext_idx_sem);
3072 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
3076 ldiskfs_htree_unlock(hlock);
3078 cfs_up_write(&pobj->oo_ext_idx_sem);
3084 * Calls ->lookup() to find dentry. From dentry get inode and
3085 * read inode's ea to get fid. This is required for interoperability
3088 * \retval 0, on success
3089 * \retval -ve, on error
3091 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
3092 struct dt_rec *rec, const struct dt_key *key)
3094 struct inode *dir = obj->oo_inode;
3095 struct dentry *dentry;
3096 struct ldiskfs_dir_entry_2 *de;
3097 struct buffer_head *bh;
3098 struct lu_fid *fid = (struct lu_fid *) rec;
3099 struct htree_lock *hlock = NULL;
3103 LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
3105 dentry = osd_child_dentry_get(env, obj,
3106 (char *)key, strlen((char *)key));
3108 if (obj->oo_hl_head != NULL) {
3109 hlock = osd_oti_get(env)->oti_hlock;
3110 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3111 dir, LDISKFS_HLOCK_LOOKUP);
3113 cfs_down_read(&obj->oo_ext_idx_sem);
3116 bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
3118 ino = le32_to_cpu(de->inode);
3119 rc = osd_get_fid_from_dentry(de, rec);
3121 /* done with de, release bh */
3124 rc = osd_ea_fid_get(env, obj, ino, fid);
3130 ldiskfs_htree_unlock(hlock);
3132 cfs_up_read(&obj->oo_ext_idx_sem);
3137 * Find the osd object for given fid.
3139 * \param fid need to find the osd object having this fid
3141 * \retval osd_object on success
3142 * \retval -ve on error
3144 struct osd_object *osd_object_find(const struct lu_env *env,
3145 struct dt_object *dt,
3146 const struct lu_fid *fid)
3148 struct lu_device *ludev = dt->do_lu.lo_dev;
3149 struct osd_object *child = NULL;
3150 struct lu_object *luch;
3151 struct lu_object *lo;
3153 luch = lu_object_find(env, ludev, fid, NULL);
3154 if (!IS_ERR(luch)) {
3155 if (lu_object_exists(luch)) {
3156 lo = lu_object_locate(luch->lo_header, ludev->ld_type);
3158 child = osd_obj(lo);
3160 LU_OBJECT_DEBUG(D_ERROR, env, luch,
3161 "lu_object can't be located"
3162 ""DFID"\n", PFID(fid));
3164 if (child == NULL) {
3165 lu_object_put(env, luch);
3166 CERROR("Unable to get osd_object\n");
3167 child = ERR_PTR(-ENOENT);
3170 LU_OBJECT_DEBUG(D_ERROR, env, luch,
3171 "lu_object does not exists "DFID"\n",
3173 child = ERR_PTR(-ENOENT);
3176 child = (void *)luch;
3182 * Put the osd object once done with it.
3184 * \param obj osd object that needs to be put
3186 static inline void osd_object_put(const struct lu_env *env,
3187 struct osd_object *obj)
3189 lu_object_put(env, &obj->oo_dt.do_lu);
3192 static int osd_index_declare_ea_insert(const struct lu_env *env,
3193 struct dt_object *dt,
3194 const struct dt_rec *rec,
3195 const struct dt_key *key,
3196 struct thandle *handle)
3198 struct osd_thandle *oh;
3200 LASSERT(dt_object_exists(dt));
3201 LASSERT(handle != NULL);
3203 oh = container_of0(handle, struct osd_thandle, ot_super);
3204 LASSERT(oh->ot_handle == NULL);
3206 OSD_DECLARE_OP(oh, insert);
3207 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
3209 LASSERT(osd_dt_obj(dt)->oo_inode);
3210 osd_declare_qid(dt, oh, USRQUOTA, osd_dt_obj(dt)->oo_inode->i_uid,
3211 osd_dt_obj(dt)->oo_inode);
3212 osd_declare_qid(dt, oh, GRPQUOTA, osd_dt_obj(dt)->oo_inode->i_gid,
3213 osd_dt_obj(dt)->oo_inode);
3219 * Index add function for interoperability mode (b11826).
3220 * It will add the directory entry.This entry is needed to
3221 * maintain name->fid mapping.
3223 * \param key it is key i.e. file entry to be inserted
3224 * \param rec it is value of given key i.e. fid
3226 * \retval 0, on success
3227 * \retval -ve, on error
3229 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
3230 const struct dt_rec *rec,
3231 const struct dt_key *key, struct thandle *th,
3232 struct lustre_capa *capa, int ignore_quota)
3234 struct osd_object *obj = osd_dt_obj(dt);
3235 struct lu_fid *fid = (struct lu_fid *) rec;
3236 const char *name = (const char *)key;
3237 struct osd_object *child;
3238 #ifdef HAVE_QUOTA_SUPPORT
3239 cfs_cap_t save = cfs_curproc_cap_pack();
3245 LASSERT(osd_invariant(obj));
3246 LASSERT(dt_object_exists(dt));
3247 LASSERT(th != NULL);
3249 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3252 child = osd_object_find(env, dt, fid);
3253 if (!IS_ERR(child)) {
3254 #ifdef HAVE_QUOTA_SUPPORT
3256 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
3258 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
3260 rc = osd_ea_add_rec(env, obj, child->oo_inode, name, rec, th);
3261 #ifdef HAVE_QUOTA_SUPPORT
3262 cfs_curproc_cap_unpack(save);
3264 osd_object_put(env, child);
3266 rc = PTR_ERR(child);
3269 LASSERT(osd_invariant(obj));
3274 * Initialize osd Iterator for given osd index object.
3276 * \param dt osd index object
3279 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
3280 struct dt_object *dt,
3282 struct lustre_capa *capa)
3284 struct osd_it_iam *it;
3285 struct osd_thread_info *oti = osd_oti_get(env);
3286 struct osd_object *obj = osd_dt_obj(dt);
3287 struct lu_object *lo = &dt->do_lu;
3288 struct iam_path_descr *ipd;
3289 struct iam_container *bag = &obj->oo_dir->od_container;
3291 LASSERT(lu_object_exists(lo));
3293 if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
3294 return ERR_PTR(-EACCES);
3297 ipd = osd_it_ipd_get(env, bag);
3298 if (likely(ipd != NULL)) {
3302 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
3303 return (struct dt_it *)it;
3305 return ERR_PTR(-ENOMEM);
3309 * free given Iterator.
3312 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
3314 struct osd_it_iam *it = (struct osd_it_iam *)di;
3315 struct osd_object *obj = it->oi_obj;
3317 iam_it_fini(&it->oi_it);
3318 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
3319 lu_object_put(env, &obj->oo_dt.do_lu);
3323 * Move Iterator to record specified by \a key
3325 * \param di osd iterator
3326 * \param key key for index
3328 * \retval +ve di points to record with least key not larger than key
3329 * \retval 0 di points to exact matched key
3330 * \retval -ve failure
3333 static int osd_it_iam_get(const struct lu_env *env,
3334 struct dt_it *di, const struct dt_key *key)
3336 struct osd_it_iam *it = (struct osd_it_iam *)di;
3338 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
3344 * \param di osd iterator
3347 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
3349 struct osd_it_iam *it = (struct osd_it_iam *)di;
3351 iam_it_put(&it->oi_it);
3355 * Move iterator by one record
3357 * \param di osd iterator
3359 * \retval +1 end of container reached
3361 * \retval -ve failure
3364 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
3366 struct osd_it_iam *it = (struct osd_it_iam *)di;
3368 return iam_it_next(&it->oi_it);
3372 * Return pointer to the key under iterator.
3375 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
3376 const struct dt_it *di)
3378 struct osd_it_iam *it = (struct osd_it_iam *)di;
3380 return (struct dt_key *)iam_it_key_get(&it->oi_it);
3384 * Return size of key under iterator (in bytes)
3387 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
3389 struct osd_it_iam *it = (struct osd_it_iam *)di;
3391 return iam_it_key_size(&it->oi_it);
3394 static inline void osd_it_append_attrs(struct lu_dirent *ent, __u32 attr,
3395 int len, __u16 type)
3397 struct luda_type *lt;
3398 const unsigned align = sizeof(struct luda_type) - 1;
3400 /* check if file type is required */
3401 if (attr & LUDA_TYPE) {
3402 len = (len + align) & ~align;
3404 lt = (void *) ent->lde_name + len;
3405 lt->lt_type = cpu_to_le16(CFS_DTTOIF(type));
3406 ent->lde_attrs |= LUDA_TYPE;
3409 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
3413 * build lu direct from backend fs dirent.
3416 static inline void osd_it_pack_dirent(struct lu_dirent *ent,
3417 struct lu_fid *fid, __u64 offset,
3418 char *name, __u16 namelen,
3419 __u16 type, __u32 attr)
3421 fid_cpu_to_le(&ent->lde_fid, fid);
3422 ent->lde_attrs = LUDA_FID;
3424 ent->lde_hash = cpu_to_le64(offset);
3425 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
3427 strncpy(ent->lde_name, name, namelen);
3428 ent->lde_namelen = cpu_to_le16(namelen);
3430 /* append lustre attributes */
3431 osd_it_append_attrs(ent, attr, namelen, type);
3435 * Return pointer to the record under iterator.
3437 static int osd_it_iam_rec(const struct lu_env *env,
3438 const struct dt_it *di,
3439 struct dt_rec *dtrec, __u32 attr)
3441 struct osd_it_iam *it = (struct osd_it_iam *)di;
3442 struct osd_thread_info *info = osd_oti_get(env);
3443 struct lu_fid *fid = &info->oti_fid;
3444 const struct osd_fid_pack *rec;
3445 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
3451 name = (char *)iam_it_key_get(&it->oi_it);
3453 RETURN(PTR_ERR(name));
3455 namelen = iam_it_key_size(&it->oi_it);
3457 rec = (const struct osd_fid_pack *) iam_it_rec_get(&it->oi_it);
3459 RETURN(PTR_ERR(rec));
3461 rc = osd_fid_unpack(fid, rec);
3465 hash = iam_it_store(&it->oi_it);
3467 /* IAM does not store object type in IAM index (dir) */
3468 osd_it_pack_dirent(lde, fid, hash, name, namelen,
3475 * Returns cookie for current Iterator position.
3477 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
3479 struct osd_it_iam *it = (struct osd_it_iam *)di;
3481 return iam_it_store(&it->oi_it);
3485 * Restore iterator from cookie.
3487 * \param di osd iterator
3488 * \param hash Iterator location cookie
3490 * \retval +ve di points to record with least key not larger than key.
3491 * \retval 0 di points to exact matched key
3492 * \retval -ve failure
3495 static int osd_it_iam_load(const struct lu_env *env,
3496 const struct dt_it *di, __u64 hash)
3498 struct osd_it_iam *it = (struct osd_it_iam *)di;
3500 return iam_it_load(&it->oi_it, hash);
3503 static const struct dt_index_operations osd_index_iam_ops = {
3504 .dio_lookup = osd_index_iam_lookup,
3505 .dio_declare_insert = osd_index_declare_iam_insert,
3506 .dio_insert = osd_index_iam_insert,
3507 .dio_declare_delete = osd_index_declare_iam_delete,
3508 .dio_delete = osd_index_iam_delete,
3510 .init = osd_it_iam_init,
3511 .fini = osd_it_iam_fini,
3512 .get = osd_it_iam_get,
3513 .put = osd_it_iam_put,
3514 .next = osd_it_iam_next,
3515 .key = osd_it_iam_key,
3516 .key_size = osd_it_iam_key_size,
3517 .rec = osd_it_iam_rec,
3518 .store = osd_it_iam_store,
3519 .load = osd_it_iam_load
3524 * Creates or initializes iterator context.
3526 * \retval struct osd_it_ea, iterator structure on success
3529 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
3530 struct dt_object *dt,
3532 struct lustre_capa *capa)
3534 struct osd_object *obj = osd_dt_obj(dt);
3535 struct osd_thread_info *info = osd_oti_get(env);
3536 struct osd_it_ea *it = &info->oti_it_ea;
3537 struct lu_object *lo = &dt->do_lu;
3538 struct dentry *obj_dentry = &info->oti_it_dentry;
3540 LASSERT(lu_object_exists(lo));
3542 obj_dentry->d_inode = obj->oo_inode;
3543 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
3544 obj_dentry->d_name.hash = 0;
3546 it->oie_rd_dirent = 0;
3547 it->oie_it_dirent = 0;
3548 it->oie_dirent = NULL;
3549 it->oie_buf = info->oti_it_ea_buf;
3551 it->oie_file.f_pos = 0;
3552 it->oie_file.f_dentry = obj_dentry;
3553 if (attr & LUDA_64BITHASH)
3554 it->oie_file.f_flags = O_64BITHASH;
3556 it->oie_file.f_flags = O_32BITHASH;
3557 it->oie_file.f_mapping = obj->oo_inode->i_mapping;
3558 it->oie_file.f_op = obj->oo_inode->i_fop;
3559 it->oie_file.private_data = NULL;
3561 RETURN((struct dt_it *) it);
3565 * Destroy or finishes iterator context.
3567 * \param di iterator structure to be destroyed
3569 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
3571 struct osd_it_ea *it = (struct osd_it_ea *)di;
3572 struct osd_object *obj = it->oie_obj;
3573 struct inode *inode = obj->oo_inode;
3576 it->oie_file.f_op->release(inode, &it->oie_file);
3577 lu_object_put(env, &obj->oo_dt.do_lu);
3582 * It position the iterator at given key, so that next lookup continues from
3583 * that key Or it is similar to dio_it->load() but based on a key,
3584 * rather than file position.
3586 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
3589 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
3591 static int osd_it_ea_get(const struct lu_env *env,
3592 struct dt_it *di, const struct dt_key *key)
3594 struct osd_it_ea *it = (struct osd_it_ea *)di;
3597 LASSERT(((const char *)key)[0] == '\0');
3598 it->oie_file.f_pos = 0;
3599 it->oie_rd_dirent = 0;
3600 it->oie_it_dirent = 0;
3601 it->oie_dirent = NULL;
3609 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
3614 * It is called internally by ->readdir(). It fills the
3615 * iterator's in-memory data structure with required
3616 * information i.e. name, namelen, rec_size etc.
3618 * \param buf in which information to be filled in.
3619 * \param name name of the file in given dir
3621 * \retval 0 on success
3622 * \retval 1 on buffer full
3624 static int osd_ldiskfs_filldir(char *buf, const char *name, int namelen,
3625 loff_t offset, __u64 ino,
3628 struct osd_it_ea *it = (struct osd_it_ea *)buf;
3629 struct osd_it_ea_dirent *ent = it->oie_dirent;
3630 struct lu_fid *fid = &ent->oied_fid;
3631 struct osd_fid_pack *rec;
3634 /* this should never happen */
3635 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
3636 CERROR("ldiskfs return invalid namelen %d\n", namelen);
3640 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
3644 if (d_type & LDISKFS_DIRENT_LUFID) {
3645 rec = (struct osd_fid_pack*) (name + namelen + 1);
3647 if (osd_fid_unpack(fid, rec) != 0)
3650 d_type &= ~LDISKFS_DIRENT_LUFID;
3655 ent->oied_ino = ino;
3656 ent->oied_off = offset;
3657 ent->oied_namelen = namelen;
3658 ent->oied_type = d_type;
3660 memcpy(ent->oied_name, name, namelen);
3662 it->oie_rd_dirent++;
3663 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
3668 * Calls ->readdir() to load a directory entry at a time
3669 * and stored it in iterator's in-memory data structure.
3671 * \param di iterator's in memory structure
3673 * \retval 0 on success
3674 * \retval -ve on error
3676 static int osd_ldiskfs_it_fill(const struct lu_env *env,
3677 const struct dt_it *di)
3679 struct osd_it_ea *it = (struct osd_it_ea *)di;
3680 struct osd_object *obj = it->oie_obj;
3681 struct inode *inode = obj->oo_inode;
3682 struct htree_lock *hlock = NULL;
3686 it->oie_dirent = it->oie_buf;
3687 it->oie_rd_dirent = 0;
3689 if (obj->oo_hl_head != NULL) {
3690 hlock = osd_oti_get(env)->oti_hlock;
3691 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3692 inode, LDISKFS_HLOCK_READDIR);
3694 cfs_down_read(&obj->oo_ext_idx_sem);
3697 result = inode->i_fop->readdir(&it->oie_file, it,
3698 (filldir_t) osd_ldiskfs_filldir);
3701 ldiskfs_htree_unlock(hlock);
3703 cfs_up_read(&obj->oo_ext_idx_sem);
3705 if (it->oie_rd_dirent == 0) {
3708 it->oie_dirent = it->oie_buf;
3709 it->oie_it_dirent = 1;
3716 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
3717 * to load a directory entry at a time and stored it in
3718 * iterator's in-memory data structure.
3720 * \param di iterator's in memory structure
3722 * \retval +ve iterator reached to end
3723 * \retval 0 iterator not reached to end
3724 * \retval -ve on error
3726 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
3728 struct osd_it_ea *it = (struct osd_it_ea *)di;
3733 if (it->oie_it_dirent < it->oie_rd_dirent) {
3735 (void *) it->oie_dirent +
3736 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
3737 it->oie_dirent->oied_namelen);
3738 it->oie_it_dirent++;
3741 if (it->oie_file.f_pos == LDISKFS_HTREE_EOF)
3744 rc = osd_ldiskfs_it_fill(env, di);
3751 * Returns the key at current position from iterator's in memory structure.
3753 * \param di iterator's in memory structure
3755 * \retval key i.e. struct dt_key on success
3757 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
3758 const struct dt_it *di)
3760 struct osd_it_ea *it = (struct osd_it_ea *)di;
3762 return (struct dt_key *)it->oie_dirent->oied_name;
3766 * Returns the key's size at current position from iterator's in memory structure.
3768 * \param di iterator's in memory structure
3770 * \retval key_size i.e. struct dt_key on success
3772 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
3774 struct osd_it_ea *it = (struct osd_it_ea *)di;
3776 return it->oie_dirent->oied_namelen;
3781 * Returns the value (i.e. fid/igif) at current position from iterator's
3782 * in memory structure.
3784 * \param di struct osd_it_ea, iterator's in memory structure
3785 * \param attr attr requested for dirent.
3786 * \param lde lustre dirent
3788 * \retval 0 no error and \param lde has correct lustre dirent.
3789 * \retval -ve on error
3791 static inline int osd_it_ea_rec(const struct lu_env *env,
3792 const struct dt_it *di,
3793 struct dt_rec *dtrec, __u32 attr)
3795 struct osd_it_ea *it = (struct osd_it_ea *)di;
3796 struct osd_object *obj = it->oie_obj;
3797 struct lu_fid *fid = &it->oie_dirent->oied_fid;
3798 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
3803 if (!fid_is_sane(fid))
3804 rc = osd_ea_fid_get(env, obj, it->oie_dirent->oied_ino, fid);
3807 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
3808 it->oie_dirent->oied_name,
3809 it->oie_dirent->oied_namelen,
3810 it->oie_dirent->oied_type,
3816 * Returns a cookie for current position of the iterator head, so that
3817 * user can use this cookie to load/start the iterator next time.
3819 * \param di iterator's in memory structure
3821 * \retval cookie for current position, on success
3823 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
3825 struct osd_it_ea *it = (struct osd_it_ea *)di;
3827 return it->oie_dirent->oied_off;
3831 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
3832 * to load a directory entry at a time and stored it i inn,
3833 * in iterator's in-memory data structure.
3835 * \param di struct osd_it_ea, iterator's in memory structure
3837 * \retval +ve on success
3838 * \retval -ve on error
3840 static int osd_it_ea_load(const struct lu_env *env,
3841 const struct dt_it *di, __u64 hash)
3843 struct osd_it_ea *it = (struct osd_it_ea *)di;
3847 it->oie_file.f_pos = hash;
3849 rc = osd_ldiskfs_it_fill(env, di);
3857 * Index lookup function for interoperability mode (b11826).
3859 * \param key, key i.e. file name to be searched
3861 * \retval +ve, on success
3862 * \retval -ve, on error
3864 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
3865 struct dt_rec *rec, const struct dt_key *key,
3866 struct lustre_capa *capa)
3868 struct osd_object *obj = osd_dt_obj(dt);
3873 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
3874 LINVRNT(osd_invariant(obj));
3876 if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3879 rc = osd_ea_lookup_rec(env, obj, rec, key);
3887 * Index and Iterator operations for interoperability
3888 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
3890 static const struct dt_index_operations osd_index_ea_ops = {
3891 .dio_lookup = osd_index_ea_lookup,
3892 .dio_declare_insert = osd_index_declare_ea_insert,
3893 .dio_insert = osd_index_ea_insert,
3894 .dio_declare_delete = osd_index_declare_ea_delete,
3895 .dio_delete = osd_index_ea_delete,
3897 .init = osd_it_ea_init,
3898 .fini = osd_it_ea_fini,
3899 .get = osd_it_ea_get,
3900 .put = osd_it_ea_put,
3901 .next = osd_it_ea_next,
3902 .key = osd_it_ea_key,
3903 .key_size = osd_it_ea_key_size,
3904 .rec = osd_it_ea_rec,
3905 .store = osd_it_ea_store,
3906 .load = osd_it_ea_load
3910 static void *osd_key_init(const struct lu_context *ctx,
3911 struct lu_context_key *key)
3913 struct osd_thread_info *info;
3915 OBD_ALLOC_PTR(info);
3917 return ERR_PTR(-ENOMEM);
3919 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
3920 if (info->oti_it_ea_buf == NULL)
3923 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
3925 info->oti_hlock = ldiskfs_htree_lock_alloc();
3926 if (info->oti_hlock == NULL)
3932 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
3935 return ERR_PTR(-ENOMEM);
3938 static void osd_key_fini(const struct lu_context *ctx,
3939 struct lu_context_key *key, void* data)
3941 struct osd_thread_info *info = data;
3943 if (info->oti_hlock != NULL)
3944 ldiskfs_htree_lock_free(info->oti_hlock);
3945 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
3949 static void osd_key_exit(const struct lu_context *ctx,
3950 struct lu_context_key *key, void *data)
3952 struct osd_thread_info *info = data;
3954 LASSERT(info->oti_r_locks == 0);
3955 LASSERT(info->oti_w_locks == 0);
3956 LASSERT(info->oti_txns == 0);
3959 /* type constructor/destructor: osd_type_init, osd_type_fini */
3960 LU_TYPE_INIT_FINI(osd, &osd_key);
3962 struct lu_context_key osd_key = {
3963 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD,
3964 .lct_init = osd_key_init,
3965 .lct_fini = osd_key_fini,
3966 .lct_exit = osd_key_exit
3970 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
3971 const char *name, struct lu_device *next)
3973 return osd_procfs_init(osd_dev(d), name);
3976 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
3978 struct osd_thread_info *info = osd_oti_get(env);
3982 if (o->od_oi_table != NULL)
3983 osd_oi_fini(info, o);
3986 fsfilt_put_ops(o->od_fsops);
3993 static int osd_mount(const struct lu_env *env,
3994 struct osd_device *o, struct lustre_cfg *cfg)
3996 struct lustre_mount_info *lmi;
3997 const char *dev = lustre_cfg_string(cfg, 0);
3998 struct lustre_disk_data *ldd;
3999 struct lustre_sb_info *lsi;
4004 o->od_fsops = fsfilt_get_ops(mt_str(LDD_MT_LDISKFS));
4005 if (o->od_fsops == NULL) {
4006 CERROR("Can't find fsfilt_ldiskfs\n");
4010 if (o->od_mount != NULL) {
4011 CERROR("Already mounted (%s)\n", dev);
4016 lmi = server_get_mount(dev);
4018 CERROR("Cannot get mount info for %s!\n", dev);
4022 LASSERT(lmi != NULL);
4023 /* save lustre_mount_info in dt_device */
4025 o->od_mnt = lmi->lmi_mnt;
4027 lsi = s2lsi(lmi->lmi_sb);
4030 if (ldd->ldd_flags & LDD_F_IAM_DIR) {
4032 LCONSOLE_WARN("%s: OSD: IAM mode enabled\n", dev);
4036 if (ldd->ldd_flags & LDD_F_SV_TYPE_OST) {
4037 rc = osd_compat_init(o);
4039 CERROR("%s: can't initialize compats: %d\n", dev, rc);
4045 static struct lu_device *osd_device_fini(const struct lu_env *env,
4046 struct lu_device *d)
4051 osd_compat_fini(osd_dev(d));
4053 shrink_dcache_sb(osd_sb(osd_dev(d)));
4054 osd_sync(env, lu2dt_dev(d));
4056 rc = osd_procfs_fini(osd_dev(d));
4058 CERROR("proc fini error %d \n", rc);
4059 RETURN (ERR_PTR(rc));
4062 if (osd_dev(d)->od_mount)
4063 server_put_mount(osd_dev(d)->od_mount->lmi_name,
4064 osd_dev(d)->od_mount->lmi_mnt);
4065 osd_dev(d)->od_mount = NULL;
4070 static struct lu_device *osd_device_alloc(const struct lu_env *env,
4071 struct lu_device_type *t,
4072 struct lustre_cfg *cfg)
4074 struct lu_device *l;
4075 struct osd_device *o;
4081 result = dt_device_init(&o->od_dt_dev, t);
4084 l->ld_ops = &osd_lu_ops;
4085 o->od_dt_dev.dd_ops = &osd_dt_ops;
4086 cfs_spin_lock_init(&o->od_osfs_lock);
4087 o->od_osfs_age = cfs_time_shift_64(-1000);
4088 o->od_capa_hash = init_capa_hash();
4089 if (o->od_capa_hash == NULL) {
4090 dt_device_fini(&o->od_dt_dev);
4091 l = ERR_PTR(-ENOMEM);
4094 l = ERR_PTR(result);
4099 l = ERR_PTR(-ENOMEM);
4103 static struct lu_device *osd_device_free(const struct lu_env *env,
4104 struct lu_device *d)
4106 struct osd_device *o = osd_dev(d);
4109 cleanup_capa_hash(o->od_capa_hash);
4110 dt_device_fini(&o->od_dt_dev);
4115 static int osd_process_config(const struct lu_env *env,
4116 struct lu_device *d, struct lustre_cfg *cfg)
4118 struct osd_device *o = osd_dev(d);
4122 switch(cfg->lcfg_command) {
4124 err = osd_mount(env, o, cfg);
4127 err = osd_shutdown(env, o);
4136 static int osd_recovery_complete(const struct lu_env *env,
4137 struct lu_device *d)
4142 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
4143 struct lu_device *dev)
4145 struct osd_device *osd = osd_dev(dev);
4146 struct osd_thread_info *oti = osd_oti_get(env);
4151 /* 1. initialize oi before any file create or file open */
4152 result = osd_oi_init(oti, osd);
4156 if (!lu_device_is_md(pdev))
4159 /* 2. setup local objects */
4160 result = llo_local_objects_setup(env, lu2md_dev(pdev), lu2dt_dev(dev));
4164 static const struct lu_object_operations osd_lu_obj_ops = {
4165 .loo_object_init = osd_object_init,
4166 .loo_object_delete = osd_object_delete,
4167 .loo_object_release = osd_object_release,
4168 .loo_object_free = osd_object_free,
4169 .loo_object_print = osd_object_print,
4170 .loo_object_invariant = osd_object_invariant
4173 const struct lu_device_operations osd_lu_ops = {
4174 .ldo_object_alloc = osd_object_alloc,
4175 .ldo_process_config = osd_process_config,
4176 .ldo_recovery_complete = osd_recovery_complete,
4177 .ldo_prepare = osd_prepare,
4180 static const struct lu_device_type_operations osd_device_type_ops = {
4181 .ldto_init = osd_type_init,
4182 .ldto_fini = osd_type_fini,
4184 .ldto_start = osd_type_start,
4185 .ldto_stop = osd_type_stop,
4187 .ldto_device_alloc = osd_device_alloc,
4188 .ldto_device_free = osd_device_free,
4190 .ldto_device_init = osd_device_init,
4191 .ldto_device_fini = osd_device_fini
4194 static struct lu_device_type osd_device_type = {
4195 .ldt_tags = LU_DEVICE_DT,
4196 .ldt_name = LUSTRE_OSD_NAME,
4197 .ldt_ops = &osd_device_type_ops,
4198 .ldt_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
4202 * lprocfs legacy support.
4204 static struct obd_ops osd_obd_device_ops = {
4205 .o_owner = THIS_MODULE
4208 static int __init osd_mod_init(void)
4210 struct lprocfs_static_vars lvars;
4213 lprocfs_osd_init_vars(&lvars);
4214 return class_register_type(&osd_obd_device_ops, NULL, lvars.module_vars,
4215 LUSTRE_OSD_NAME, &osd_device_type);
4218 static void __exit osd_mod_exit(void)
4220 class_unregister_type(LUSTRE_OSD_NAME);
4223 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
4224 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_NAME")");
4225 MODULE_LICENSE("GPL");
4227 cfs_module(osd, "0.1.0", osd_mod_init, osd_mod_exit);