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LU-1842 quota: migrate old quota admin files
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_handler.c
1 /*
2  * GPL HEADER START
3  *
4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 only,
8  * as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License version 2 for more details (a copy is included
14  * in the LICENSE file that accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License
17  * version 2 along with this program; If not, see
18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
19  *
20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21  * CA 95054 USA or visit www.sun.com if you need additional information or
22  * have any questions.
23  *
24  * GPL HEADER END
25  */
26 /*
27  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28  * Use is subject to license terms.
29  *
30  * Copyright (c) 2011, 2012, Whamcloud, Inc.
31  */
32 /*
33  * This file is part of Lustre, http://www.lustre.org/
34  * Lustre is a trademark of Sun Microsystems, Inc.
35  *
36  * lustre/osd/osd_handler.c
37  *
38  * Top-level entry points into osd module
39  *
40  * Author: Nikita Danilov <nikita@clusterfs.com>
41  *         Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
42  */
43
44 #define DEBUG_SUBSYSTEM S_MDS
45
46 #include <linux/module.h>
47
48 /* LUSTRE_VERSION_CODE */
49 #include <lustre_ver.h>
50 /* prerequisite for linux/xattr.h */
51 #include <linux/types.h>
52 /* prerequisite for linux/xattr.h */
53 #include <linux/fs.h>
54 /* XATTR_{REPLACE,CREATE} */
55 #include <linux/xattr.h>
56 /* simple_mkdir() */
57 #include <lvfs.h>
58
59 /*
60  * struct OBD_{ALLOC,FREE}*()
61  * OBD_FAIL_CHECK
62  */
63 #include <obd_support.h>
64 /* struct ptlrpc_thread */
65 #include <lustre_net.h>
66
67 /* fid_is_local() */
68 #include <lustre_fid.h>
69
70 #include "osd_internal.h"
71 #include "osd_igif.h"
72
73 /* llo_* api support */
74 #include <md_object.h>
75 /* dt_acct_features */
76 #include <lquota.h>
77
78 #ifdef HAVE_LDISKFS_PDO
79 int ldiskfs_pdo = 1;
80 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
81                 "ldiskfs with parallel directory operations");
82 #else
83 int ldiskfs_pdo = 0;
84 #endif
85
86 static const char dot[] = ".";
87 static const char dotdot[] = "..";
88 static const char remote_obj_dir[] = "REM_OBJ_DIR";
89
90 static const struct lu_object_operations      osd_lu_obj_ops;
91 static const struct dt_object_operations      osd_obj_ops;
92 static const struct dt_object_operations      osd_obj_ea_ops;
93 static const struct dt_object_operations      osd_obj_otable_it_ops;
94 static const struct dt_index_operations       osd_index_iam_ops;
95 static const struct dt_index_operations       osd_index_ea_ops;
96
97 static int osd_has_index(const struct osd_object *obj)
98 {
99         return obj->oo_dt.do_index_ops != NULL;
100 }
101
102 static int osd_object_invariant(const struct lu_object *l)
103 {
104         return osd_invariant(osd_obj(l));
105 }
106
107 #ifdef HAVE_QUOTA_SUPPORT
108 static inline void
109 osd_push_ctxt(const struct lu_env *env, struct osd_ctxt *save, bool is_md)
110 {
111         struct md_ucred *uc;
112         struct cred     *tc;
113
114         if (!is_md)
115                 /* OFD support */
116                 return;
117
118         uc = md_ucred(env);
119
120         LASSERT(uc != NULL);
121
122         save->oc_uid = current_fsuid();
123         save->oc_gid = current_fsgid();
124         save->oc_cap = current_cap();
125         if ((tc = prepare_creds())) {
126                 tc->fsuid         = uc->mu_fsuid;
127                 tc->fsgid         = uc->mu_fsgid;
128                 commit_creds(tc);
129         }
130         /* XXX not suboptimal */
131         cfs_curproc_cap_unpack(uc->mu_cap);
132 }
133
134 static inline void
135 osd_pop_ctxt(struct osd_ctxt *save, bool is_md)
136 {
137         struct cred *tc;
138
139         if (!is_md)
140                 /* OFD support */
141                 return;
142
143         if ((tc = prepare_creds())) {
144                 tc->fsuid         = save->oc_uid;
145                 tc->fsgid         = save->oc_gid;
146                 tc->cap_effective = save->oc_cap;
147                 commit_creds(tc);
148         }
149 }
150 #endif
151
152 /*
153  * Concurrency: doesn't matter
154  */
155 static int osd_read_locked(const struct lu_env *env, struct osd_object *o)
156 {
157         return osd_oti_get(env)->oti_r_locks > 0;
158 }
159
160 /*
161  * Concurrency: doesn't matter
162  */
163 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
164 {
165         struct osd_thread_info *oti = osd_oti_get(env);
166         return oti->oti_w_locks > 0 && o->oo_owner == env;
167 }
168
169 /*
170  * Concurrency: doesn't access mutable data
171  */
172 static int osd_root_get(const struct lu_env *env,
173                         struct dt_device *dev, struct lu_fid *f)
174 {
175         lu_local_obj_fid(f, OSD_FS_ROOT_OID);
176         return 0;
177 }
178
179 /*
180  * OSD object methods.
181  */
182
183 /*
184  * Concurrency: no concurrent access is possible that early in object
185  * life-cycle.
186  */
187 static struct lu_object *osd_object_alloc(const struct lu_env *env,
188                                           const struct lu_object_header *hdr,
189                                           struct lu_device *d)
190 {
191         struct osd_object *mo;
192
193         OBD_ALLOC_PTR(mo);
194         if (mo != NULL) {
195                 struct lu_object *l;
196
197                 l = &mo->oo_dt.do_lu;
198                 dt_object_init(&mo->oo_dt, NULL, d);
199                 if (osd_dev(d)->od_iop_mode)
200                         mo->oo_dt.do_ops = &osd_obj_ea_ops;
201                 else
202                         mo->oo_dt.do_ops = &osd_obj_ops;
203
204                 l->lo_ops = &osd_lu_obj_ops;
205                 cfs_init_rwsem(&mo->oo_sem);
206                 cfs_init_rwsem(&mo->oo_ext_idx_sem);
207                 cfs_spin_lock_init(&mo->oo_guard);
208                 return l;
209         } else {
210                 return NULL;
211         }
212 }
213
214 static int osd_get_lma(struct inode *inode, struct dentry *dentry,
215                        struct lustre_mdt_attrs *lma)
216 {
217         int rc;
218
219         dentry->d_inode = inode;
220         rc = inode->i_op->getxattr(dentry, XATTR_NAME_LMA, (void *)lma,
221                                    sizeof(*lma));
222         if (rc > 0) {
223                 /* Check LMA compatibility */
224                 if (lma->lma_incompat & ~cpu_to_le32(LMA_INCOMPAT_SUPP)) {
225                         CWARN("%.16s: unsupported incompat LMA feature(s) "
226                               "%lx/%#x\n",
227                               LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
228                               inode->i_ino, le32_to_cpu(lma->lma_incompat) &
229                                                         ~LMA_INCOMPAT_SUPP);
230                         rc = -ENOSYS;
231                 } else {
232                         lustre_lma_swab(lma);
233                         rc = 0;
234                 }
235         } else if (rc == 0) {
236                 rc = -ENODATA;
237         }
238
239         return rc;
240 }
241
242 /*
243  * retrieve object from backend ext fs.
244  **/
245 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
246                        struct osd_inode_id *id)
247 {
248         struct inode *inode = NULL;
249
250         inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
251         if (IS_ERR(inode)) {
252                 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
253                        id->oii_ino, PTR_ERR(inode));
254         } else if (id->oii_gen != OSD_OII_NOGEN &&
255                    inode->i_generation != id->oii_gen) {
256                 CDEBUG(D_INODE, "unmatched inode: ino = %u, gen0 = %u, "
257                        "gen1 = %u\n",
258                        id->oii_ino, id->oii_gen, inode->i_generation);
259                 iput(inode);
260                 inode = ERR_PTR(-ESTALE);
261         } else if (inode->i_nlink == 0) {
262                 /* due to parallel readdir and unlink,
263                 * we can have dead inode here. */
264                 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
265                 make_bad_inode(inode);
266                 iput(inode);
267                 inode = ERR_PTR(-ESTALE);
268         } else if (is_bad_inode(inode)) {
269                 CWARN("%.16s: bad inode: ino = %u\n",
270                 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, id->oii_ino);
271                 iput(inode);
272                 inode = ERR_PTR(-ENOENT);
273         } else {
274                 if (id->oii_gen == OSD_OII_NOGEN)
275                         osd_id_gen(id, inode->i_ino, inode->i_generation);
276
277                 /* Do not update file c/mtime in ldiskfs.
278                  * NB: we don't have any lock to protect this because we don't
279                  * have reference on osd_object now, but contention with
280                  * another lookup + attr_set can't happen in the tiny window
281                  * between if (...) and set S_NOCMTIME. */
282                 if (!(inode->i_flags & S_NOCMTIME))
283                         inode->i_flags |= S_NOCMTIME;
284         }
285         return inode;
286 }
287
288 struct inode *osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
289                            struct osd_inode_id *id, struct lu_fid *fid)
290 {
291         struct lustre_mdt_attrs *lma   = &info->oti_mdt_attrs;
292         struct inode            *inode;
293         int                      rc;
294
295         inode = osd_iget(info, dev, id);
296         if (IS_ERR(inode))
297                 return inode;
298
299         rc = osd_get_lma(inode, &info->oti_obj_dentry, lma);
300         if (rc == 0) {
301                 *fid = lma->lma_self_fid;
302         } else if (rc == -ENODATA) {
303                 LU_IGIF_BUILD(fid, inode->i_ino, inode->i_generation);
304         } else {
305                 iput(inode);
306                 inode = ERR_PTR(rc);
307         }
308         return inode;
309 }
310
311 static struct inode *
312 osd_iget_verify(struct osd_thread_info *info, struct osd_device *dev,
313                 struct osd_inode_id *id, const struct lu_fid *fid)
314 {
315         struct lustre_mdt_attrs *lma   = &info->oti_mdt_attrs;
316         struct inode            *inode;
317         int                      rc;
318
319         inode = osd_iget(info, dev, id);
320         if (IS_ERR(inode))
321                 return inode;
322
323         rc = osd_get_lma(inode, &info->oti_obj_dentry, lma);
324         if (rc != 0) {
325                 if (rc == -ENODATA) {
326                         CDEBUG(D_LFSCK, "inconsistent obj: NULL, %lu, "DFID"\n",
327                                inode->i_ino, PFID(fid));
328                         rc = -EREMCHG;
329                 }
330                 iput(inode);
331                 return ERR_PTR(rc);
332         }
333
334         if (!lu_fid_eq(fid, &lma->lma_self_fid)) {
335                 CDEBUG(D_LFSCK, "inconsistent obj: "DFID", %lu, "DFID"\n",
336                        PFID(&lma->lma_self_fid), inode->i_ino, PFID(fid));
337                 iput(inode);
338                 return ERR_PTR(EREMCHG);
339         }
340         return inode;
341 }
342
343 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
344                           const struct lu_fid *fid,
345                           const struct lu_object_conf *conf)
346 {
347         struct osd_thread_info *info;
348         struct lu_device       *ldev   = obj->oo_dt.do_lu.lo_dev;
349         struct osd_device      *dev;
350         struct osd_idmap_cache *oic;
351         struct osd_inode_id    *id;
352         struct inode           *inode;
353         struct osd_scrub       *scrub;
354         struct scrub_file      *sf;
355         int                     result;
356         int                     verify = 0;
357         ENTRY;
358
359         LINVRNT(osd_invariant(obj));
360         LASSERT(obj->oo_inode == NULL);
361         LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID, PFID(fid));
362
363         dev = osd_dev(ldev);
364         scrub = &dev->od_scrub;
365         sf = &scrub->os_file;
366         info = osd_oti_get(env);
367         LASSERT(info);
368         oic = &info->oti_cache;
369         id  = &oic->oic_lid;
370
371         if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
372                 RETURN(-ENOENT);
373
374         if (fid_is_norm(fid)) {
375                 /* Search order: 1. per-thread cache. */
376                 if (lu_fid_eq(fid, &oic->oic_fid)) {
377                         goto iget;
378                 } else if (!cfs_list_empty(&scrub->os_inconsistent_items)) {
379                         /* Search order: 2. OI scrub pending list. */
380                         result = osd_oii_lookup(dev, fid, id);
381                         if (result == 0)
382                                 goto iget;
383                 }
384
385                 if (sf->sf_flags & SF_INCONSISTENT)
386                         verify = 1;
387         }
388
389         /*
390          * Objects are created as locking anchors or place holders for objects
391          * yet to be created. No need to osd_oi_lookup() at here because FID
392          * shouldn't never be re-used, if it's really a duplicate FID from
393          * unexpected reason, we should be able to detect it later by calling
394          * do_create->osd_oi_insert()
395          */
396         if (conf != NULL && (conf->loc_flags & LOC_F_NEW) != 0)
397                 GOTO(out, result = 0);
398
399         /* Search order: 3. OI files. */
400         result = osd_oi_lookup(info, dev, fid, id);
401         if (result == -ENOENT) {
402                 if (!fid_is_norm(fid) ||
403                     !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
404                                       sf->sf_oi_bitmap))
405                         GOTO(out, result = 0);
406
407                 goto trigger;
408         }
409
410         if (result != 0)
411                 GOTO(out, result);
412
413 iget:
414         if (verify == 0)
415                 inode = osd_iget(info, dev, id);
416         else
417                 inode = osd_iget_verify(info, dev, id, fid);
418         if (IS_ERR(inode)) {
419                 result = PTR_ERR(inode);
420                 if (result == -ENOENT || result == -ESTALE) {
421                         fid_zero(&oic->oic_fid);
422                         result = 0;
423                 } else if (result == -EREMCHG) {
424
425 trigger:
426                         if (thread_is_running(&scrub->os_thread)) {
427                                 result = -EINPROGRESS;
428                         } else if (!scrub->os_no_scrub) {
429                                 result = osd_scrub_start(dev);
430                                 LCONSOLE_ERROR("%.16s: trigger OI scrub by RPC "
431                                                "for "DFID", rc = %d [1]\n",
432                                                LDISKFS_SB(osd_sb(dev))->s_es->\
433                                                s_volume_name,PFID(fid), result);
434                                 if (result == 0 || result == -EALREADY)
435                                         result = -EINPROGRESS;
436                                 else
437                                         result = -EREMCHG;
438                         }
439                 }
440
441                 GOTO(out, result);
442         }
443
444         obj->oo_inode = inode;
445         LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
446         if (dev->od_iop_mode) {
447                 obj->oo_compat_dot_created = 1;
448                 obj->oo_compat_dotdot_created = 1;
449         }
450
451         if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
452                 GOTO(out, result = 0);
453
454         LASSERT(obj->oo_hl_head == NULL);
455         obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
456         if (obj->oo_hl_head == NULL) {
457                 obj->oo_inode = NULL;
458                 iput(inode);
459                 GOTO(out, result = -ENOMEM);
460         }
461         GOTO(out, result = 0);
462
463 out:
464         LINVRNT(osd_invariant(obj));
465         return result;
466 }
467
468 /*
469  * Concurrency: shouldn't matter.
470  */
471 static void osd_object_init0(struct osd_object *obj)
472 {
473         LASSERT(obj->oo_inode != NULL);
474         obj->oo_dt.do_body_ops = &osd_body_ops;
475         obj->oo_dt.do_lu.lo_header->loh_attr |=
476                 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
477 }
478
479 /*
480  * Concurrency: no concurrent access is possible that early in object
481  * life-cycle.
482  */
483 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
484                            const struct lu_object_conf *conf)
485 {
486         struct osd_object *obj = osd_obj(l);
487         int result;
488
489         LINVRNT(osd_invariant(obj));
490
491         result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
492         obj->oo_dt.do_body_ops = &osd_body_ops_new;
493         if (result == 0) {
494                 if (obj->oo_inode != NULL) {
495                         osd_object_init0(obj);
496                 } else if (fid_is_otable_it(&l->lo_header->loh_fid)) {
497                         obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
498                         /* LFSCK iterator object is special without inode */
499                         l->lo_header->loh_attr |= LOHA_EXISTS;
500                 }
501         }
502         LINVRNT(osd_invariant(obj));
503         return result;
504 }
505
506 /*
507  * Concurrency: no concurrent access is possible that late in object
508  * life-cycle.
509  */
510 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
511 {
512         struct osd_object *obj = osd_obj(l);
513
514         LINVRNT(osd_invariant(obj));
515
516         dt_object_fini(&obj->oo_dt);
517         if (obj->oo_hl_head != NULL)
518                 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
519         OBD_FREE_PTR(obj);
520 }
521
522 /*
523  * Concurrency: no concurrent access is possible that late in object
524  * life-cycle.
525  */
526 static void osd_index_fini(struct osd_object *o)
527 {
528         struct iam_container *bag;
529
530         if (o->oo_dir != NULL) {
531                 bag = &o->oo_dir->od_container;
532                 if (o->oo_inode != NULL) {
533                         if (bag->ic_object == o->oo_inode)
534                                 iam_container_fini(bag);
535                 }
536                 OBD_FREE_PTR(o->oo_dir);
537                 o->oo_dir = NULL;
538         }
539 }
540
541 /*
542  * Concurrency: no concurrent access is possible that late in object
543  * life-cycle (for all existing callers, that is. New callers have to provide
544  * their own locking.)
545  */
546 static int osd_inode_unlinked(const struct inode *inode)
547 {
548         return inode->i_nlink == 0;
549 }
550
551 enum {
552         OSD_TXN_OI_DELETE_CREDITS    = 20,
553         OSD_TXN_INODE_DELETE_CREDITS = 20
554 };
555
556 /*
557  * Journal
558  */
559
560 #if OSD_THANDLE_STATS
561 /**
562  * Set time when the handle is allocated
563  */
564 static void osd_th_alloced(struct osd_thandle *oth)
565 {
566         oth->oth_alloced = cfs_time_current();
567 }
568
569 /**
570  * Set time when the handle started
571  */
572 static void osd_th_started(struct osd_thandle *oth)
573 {
574         oth->oth_started = cfs_time_current();
575 }
576
577 /**
578  * Helper function to convert time interval to microseconds packed in
579  * long int (default time units for the counter in "stats" initialized
580  * by lu_time_init() )
581  */
582 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
583 {
584         struct timeval val;
585
586         cfs_duration_usec(cfs_time_sub(end, start), &val);
587         return val.tv_sec * 1000000 + val.tv_usec;
588 }
589
590 /**
591  * Check whether the we deal with this handle for too long.
592  */
593 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
594                                 cfs_time_t alloced, cfs_time_t started,
595                                 cfs_time_t closed)
596 {
597         cfs_time_t now = cfs_time_current();
598
599         LASSERT(dev != NULL);
600
601         lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
602                             interval_to_usec(alloced, started));
603         lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
604                             interval_to_usec(started, closed));
605         lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
606                             interval_to_usec(closed, now));
607
608         if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
609                 CWARN("transaction handle %p was open for too long: "
610                       "now "CFS_TIME_T" ,"
611                       "alloced "CFS_TIME_T" ,"
612                       "started "CFS_TIME_T" ,"
613                       "closed "CFS_TIME_T"\n",
614                       oth, now, alloced, started, closed);
615                 libcfs_debug_dumpstack(NULL);
616         }
617 }
618
619 #define OSD_CHECK_SLOW_TH(oth, dev, expr)                               \
620 {                                                                       \
621         cfs_time_t __closed = cfs_time_current();                       \
622         cfs_time_t __alloced = oth->oth_alloced;                        \
623         cfs_time_t __started = oth->oth_started;                        \
624                                                                         \
625         expr;                                                           \
626         __osd_th_check_slow(oth, dev, __alloced, __started, __closed);  \
627 }
628
629 #else /* OSD_THANDLE_STATS */
630
631 #define osd_th_alloced(h)                  do {} while(0)
632 #define osd_th_started(h)                  do {} while(0)
633 #define OSD_CHECK_SLOW_TH(oth, dev, expr)  expr
634
635 #endif /* OSD_THANDLE_STATS */
636
637 /*
638  * Concurrency: doesn't access mutable data.
639  */
640 static int osd_param_is_sane(const struct osd_device *dev,
641                              const struct thandle *th)
642 {
643         struct osd_thandle *oh;
644         oh = container_of0(th, struct osd_thandle, ot_super);
645         return oh->ot_credits <= osd_journal(dev)->j_max_transaction_buffers;
646 }
647
648 /*
649  * Concurrency: shouldn't matter.
650  */
651 #ifdef HAVE_LDISKFS_JOURNAL_CALLBACK_ADD
652 static void osd_trans_commit_cb(struct super_block *sb,
653                                 struct journal_callback *jcb, int error)
654 #else
655 static void osd_trans_commit_cb(struct journal_callback *jcb, int error)
656 #endif
657 {
658         struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
659         struct thandle     *th  = &oh->ot_super;
660         struct lu_device   *lud = &th->th_dev->dd_lu_dev;
661         struct dt_txn_commit_cb *dcb, *tmp;
662
663         LASSERT(oh->ot_handle == NULL);
664
665         if (error)
666                 CERROR("transaction @0x%p commit error: %d\n", th, error);
667
668         dt_txn_hook_commit(th);
669
670         /* call per-transaction callbacks if any */
671         cfs_list_for_each_entry_safe(dcb, tmp, &oh->ot_dcb_list, dcb_linkage) {
672                 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
673                          "commit callback entry: magic=%x name='%s'\n",
674                          dcb->dcb_magic, dcb->dcb_name);
675                 cfs_list_del_init(&dcb->dcb_linkage);
676                 dcb->dcb_func(NULL, th, dcb, error);
677         }
678
679         lu_ref_del_at(&lud->ld_reference, oh->ot_dev_link, "osd-tx", th);
680         lu_device_put(lud);
681         th->th_dev = NULL;
682
683         lu_context_exit(&th->th_ctx);
684         lu_context_fini(&th->th_ctx);
685         OBD_FREE_PTR(oh);
686 }
687
688 static struct thandle *osd_trans_create(const struct lu_env *env,
689                                         struct dt_device *d)
690 {
691         struct osd_thread_info *oti = osd_oti_get(env);
692         struct osd_iobuf       *iobuf = &oti->oti_iobuf;
693         struct osd_thandle     *oh;
694         struct thandle         *th;
695         ENTRY;
696
697         /* on pending IO in this thread should left from prev. request */
698         LASSERT(cfs_atomic_read(&iobuf->dr_numreqs) == 0);
699
700         th = ERR_PTR(-ENOMEM);
701         OBD_ALLOC_GFP(oh, sizeof *oh, CFS_ALLOC_IO);
702         if (oh != NULL) {
703                 oh->ot_quota_trans = &oti->oti_quota_trans;
704                 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
705                 th = &oh->ot_super;
706                 th->th_dev = d;
707                 th->th_result = 0;
708                 th->th_tags = LCT_TX_HANDLE;
709                 oh->ot_credits = 0;
710                 oti->oti_dev = osd_dt_dev(d);
711                 CFS_INIT_LIST_HEAD(&oh->ot_dcb_list);
712                 osd_th_alloced(oh);
713         }
714         RETURN(th);
715 }
716
717 /*
718  * Concurrency: shouldn't matter.
719  */
720 int osd_trans_start(const struct lu_env *env, struct dt_device *d,
721                     struct thandle *th)
722 {
723         struct osd_thread_info *oti = osd_oti_get(env);
724         struct osd_device  *dev = osd_dt_dev(d);
725         handle_t           *jh;
726         struct osd_thandle *oh;
727         int rc;
728
729         ENTRY;
730
731         LASSERT(current->journal_info == NULL);
732
733         oh = container_of0(th, struct osd_thandle, ot_super);
734         LASSERT(oh != NULL);
735         LASSERT(oh->ot_handle == NULL);
736
737         rc = dt_txn_hook_start(env, d, th);
738         if (rc != 0)
739                 GOTO(out, rc);
740
741         if (!osd_param_is_sane(dev, th)) {
742                 CWARN("%.16s: too many transaction credits (%d > %d)\n",
743                       LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
744                       oh->ot_credits,
745                       osd_journal(dev)->j_max_transaction_buffers);
746                 /* XXX Limit the credits to 'max_transaction_buffers', and
747                  *     let the underlying filesystem to catch the error if
748                  *     we really need so many credits.
749                  *
750                  *     This should be removed when we can calculate the
751                  *     credits precisely. */
752                 oh->ot_credits = osd_journal(dev)->j_max_transaction_buffers;
753 #ifdef OSD_TRACK_DECLARES
754                 CERROR("  attr_set: %d, punch: %d, xattr_set: %d,\n",
755                        oh->ot_declare_attr_set, oh->ot_declare_punch,
756                        oh->ot_declare_xattr_set);
757                 CERROR("  create: %d, ref_add: %d, ref_del: %d, write: %d\n",
758                        oh->ot_declare_create, oh->ot_declare_ref_add,
759                        oh->ot_declare_ref_del, oh->ot_declare_write);
760                 CERROR("  insert: %d, delete: %d, destroy: %d\n",
761                        oh->ot_declare_insert, oh->ot_declare_delete,
762                        oh->ot_declare_destroy);
763 #endif
764         }
765
766         /*
767          * XXX temporary stuff. Some abstraction layer should
768          * be used.
769          */
770         jh = ldiskfs_journal_start_sb(osd_sb(dev), oh->ot_credits);
771         osd_th_started(oh);
772         if (!IS_ERR(jh)) {
773                 oh->ot_handle = jh;
774                 LASSERT(oti->oti_txns == 0);
775                 lu_context_init(&th->th_ctx, th->th_tags);
776                 lu_context_enter(&th->th_ctx);
777
778                 lu_device_get(&d->dd_lu_dev);
779                 oh->ot_dev_link = lu_ref_add(&d->dd_lu_dev.ld_reference,
780                                              "osd-tx", th);
781                 oti->oti_txns++;
782                 rc = 0;
783         } else {
784                 rc = PTR_ERR(jh);
785         }
786 out:
787         RETURN(rc);
788 }
789
790 /*
791  * Concurrency: shouldn't matter.
792  */
793 static int osd_trans_stop(const struct lu_env *env, struct thandle *th)
794 {
795         int                     rc = 0;
796         struct osd_thandle     *oh;
797         struct osd_thread_info *oti = osd_oti_get(env);
798         struct osd_iobuf       *iobuf = &oti->oti_iobuf;
799         struct qsd_instance    *qsd = oti->oti_dev->od_quota_slave;
800         ENTRY;
801
802         oh = container_of0(th, struct osd_thandle, ot_super);
803
804         if (qsd != NULL)
805                 /* inform the quota slave device that the transaction is
806                  * stopping */
807                 qsd_op_end(env, qsd, oh->ot_quota_trans);
808         oh->ot_quota_trans = NULL;
809
810         if (oh->ot_handle != NULL) {
811                 handle_t *hdl = oh->ot_handle;
812
813                 /*
814                  * add commit callback
815                  * notice we don't do this in osd_trans_start()
816                  * as underlying transaction can change during truncate
817                  */
818                 osd_journal_callback_set(hdl, osd_trans_commit_cb,
819                                          &oh->ot_jcb);
820
821                 LASSERT(oti->oti_txns == 1);
822                 oti->oti_txns--;
823                 rc = dt_txn_hook_stop(env, th);
824                 if (rc != 0)
825                         CERROR("Failure in transaction hook: %d\n", rc);
826
827                 /* hook functions might modify th_sync */
828                 hdl->h_sync = th->th_sync;
829
830                 oh->ot_handle = NULL;
831                 OSD_CHECK_SLOW_TH(oh, oti->oti_dev,
832                                   rc = ldiskfs_journal_stop(hdl));
833                 if (rc != 0)
834                         CERROR("Failure to stop transaction: %d\n", rc);
835         } else {
836                 OBD_FREE_PTR(oh);
837         }
838
839         /* as we want IO to journal and data IO be concurrent, we don't block
840          * awaiting data IO completion in osd_do_bio(), instead we wait here
841          * once transaction is submitted to the journal. all reqular requests
842          * don't do direct IO (except read/write), thus this wait_event becomes
843          * no-op for them.
844          *
845          * IMPORTANT: we have to wait till any IO submited by the thread is
846          * completed otherwise iobuf may be corrupted by different request
847          */
848         cfs_wait_event(iobuf->dr_wait,
849                        cfs_atomic_read(&iobuf->dr_numreqs) == 0);
850         if (!rc)
851                 rc = iobuf->dr_error;
852
853         RETURN(rc);
854 }
855
856 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
857 {
858         struct osd_thandle *oh = container_of0(th, struct osd_thandle,
859                                                ot_super);
860
861         LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
862         LASSERT(&dcb->dcb_func != NULL);
863         cfs_list_add(&dcb->dcb_linkage, &oh->ot_dcb_list);
864
865         return 0;
866 }
867
868 /*
869  * Called just before object is freed. Releases all resources except for
870  * object itself (that is released by osd_object_free()).
871  *
872  * Concurrency: no concurrent access is possible that late in object
873  * life-cycle.
874  */
875 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
876 {
877         struct osd_object *obj   = osd_obj(l);
878         struct inode      *inode = obj->oo_inode;
879
880         LINVRNT(osd_invariant(obj));
881
882         /*
883          * If object is unlinked remove fid->ino mapping from object index.
884          */
885
886         osd_index_fini(obj);
887         if (inode != NULL) {
888                 iput(inode);
889                 obj->oo_inode = NULL;
890         }
891 }
892
893 /*
894  * Concurrency: ->loo_object_release() is called under site spin-lock.
895  */
896 static void osd_object_release(const struct lu_env *env,
897                                struct lu_object *l)
898 {
899 }
900
901 /*
902  * Concurrency: shouldn't matter.
903  */
904 static int osd_object_print(const struct lu_env *env, void *cookie,
905                             lu_printer_t p, const struct lu_object *l)
906 {
907         struct osd_object *o = osd_obj(l);
908         struct iam_descr  *d;
909
910         if (o->oo_dir != NULL)
911                 d = o->oo_dir->od_container.ic_descr;
912         else
913                 d = NULL;
914         return (*p)(env, cookie,
915                     LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
916                     o, o->oo_inode,
917                     o->oo_inode ? o->oo_inode->i_ino : 0UL,
918                     o->oo_inode ? o->oo_inode->i_generation : 0,
919                     d ? d->id_ops->id_name : "plain");
920 }
921
922 /*
923  * Concurrency: shouldn't matter.
924  */
925 int osd_statfs(const struct lu_env *env, struct dt_device *d,
926                struct obd_statfs *sfs)
927 {
928         struct osd_device  *osd = osd_dt_dev(d);
929         struct super_block *sb = osd_sb(osd);
930         struct kstatfs     *ksfs;
931         int result = 0;
932
933         if (unlikely(osd->od_mnt == NULL))
934                 return -EINPROGRESS;
935
936         /* osd_lproc.c call this without env, allocate ksfs for that case */
937         if (unlikely(env == NULL)) {
938                 OBD_ALLOC_PTR(ksfs);
939                 if (ksfs == NULL)
940                         return -ENOMEM;
941         } else {
942                 ksfs = &osd_oti_get(env)->oti_ksfs;
943         }
944
945         cfs_spin_lock(&osd->od_osfs_lock);
946         /* cache 1 second */
947         if (cfs_time_before_64(osd->od_osfs_age, cfs_time_shift_64(-1))) {
948                 result = sb->s_op->statfs(sb->s_root, ksfs);
949                 if (likely(result == 0)) { /* N.B. statfs can't really fail */
950                         osd->od_osfs_age = cfs_time_current_64();
951                         statfs_pack(&osd->od_statfs, ksfs);
952                 }
953         }
954
955         if (likely(result == 0))
956                 *sfs = osd->od_statfs;
957         cfs_spin_unlock(&osd->od_osfs_lock);
958
959         if (unlikely(env == NULL))
960                 OBD_FREE_PTR(ksfs);
961
962         return result;
963 }
964
965 /*
966  * Concurrency: doesn't access mutable data.
967  */
968 static void osd_conf_get(const struct lu_env *env,
969                          const struct dt_device *dev,
970                          struct dt_device_param *param)
971 {
972         struct super_block *sb = osd_sb(osd_dt_dev(dev));
973
974         /*
975          * XXX should be taken from not-yet-existing fs abstraction layer.
976          */
977         param->ddp_mnt = osd_dt_dev(dev)->od_mnt;
978         param->ddp_max_name_len = LDISKFS_NAME_LEN;
979         param->ddp_max_nlink    = LDISKFS_LINK_MAX;
980         param->ddp_block_shift  = sb->s_blocksize_bits;
981         param->ddp_mount_type     = LDD_MT_LDISKFS;
982         param->ddp_mntopts      = 0;
983         if (test_opt(sb, XATTR_USER))
984                 param->ddp_mntopts |= MNTOPT_USERXATTR;
985         if (test_opt(sb, POSIX_ACL))
986                 param->ddp_mntopts |= MNTOPT_ACL;
987
988 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
989         if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
990                 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE;
991         else
992 #endif
993                 param->ddp_max_ea_size = sb->s_blocksize;
994
995 }
996
997 /**
998  * Helper function to get and fill the buffer with input values.
999  */
1000 static struct lu_buf *osd_buf_get(const struct lu_env *env, void *area, ssize_t len)
1001 {
1002         struct lu_buf *buf;
1003
1004         buf = &osd_oti_get(env)->oti_buf;
1005         buf->lb_buf = area;
1006         buf->lb_len = len;
1007         return buf;
1008 }
1009
1010 /*
1011  * Concurrency: shouldn't matter.
1012  */
1013 static int osd_sync(const struct lu_env *env, struct dt_device *d)
1014 {
1015         CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1016         return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
1017 }
1018
1019 /**
1020  * Start commit for OSD device.
1021  *
1022  * An implementation of dt_commit_async method for OSD device.
1023  * Asychronously starts underlayng fs sync and thereby a transaction
1024  * commit.
1025  *
1026  * \param env environment
1027  * \param d dt device
1028  *
1029  * \see dt_device_operations
1030  */
1031 static int osd_commit_async(const struct lu_env *env,
1032                             struct dt_device *d)
1033 {
1034         struct super_block *s = osd_sb(osd_dt_dev(d));
1035         ENTRY;
1036
1037         CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1038         RETURN(s->s_op->sync_fs(s, 0));
1039 }
1040
1041 /*
1042  * Concurrency: shouldn't matter.
1043  */
1044
1045 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1046 {
1047         struct super_block *sb = osd_sb(osd_dt_dev(d));
1048         int rc;
1049         ENTRY;
1050
1051         CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1052
1053         rc = __lvfs_set_rdonly(sb->s_bdev, LDISKFS_SB(sb)->journal_bdev);
1054         RETURN(rc);
1055 }
1056
1057 /*
1058  * Concurrency: serialization provided by callers.
1059  */
1060 static int osd_init_capa_ctxt(const struct lu_env *env, struct dt_device *d,
1061                               int mode, unsigned long timeout, __u32 alg,
1062                               struct lustre_capa_key *keys)
1063 {
1064         struct osd_device *dev = osd_dt_dev(d);
1065         ENTRY;
1066
1067         dev->od_fl_capa = mode;
1068         dev->od_capa_timeout = timeout;
1069         dev->od_capa_alg = alg;
1070         dev->od_capa_keys = keys;
1071         RETURN(0);
1072 }
1073
1074 /**
1075  * Concurrency: serialization provided by callers.
1076  */
1077 static void osd_init_quota_ctxt(const struct lu_env *env, struct dt_device *d,
1078                                struct dt_quota_ctxt *ctxt, void *data)
1079 {
1080         struct obd_device *obd = (void *)ctxt;
1081         struct vfsmount *mnt = (struct vfsmount *)data;
1082         ENTRY;
1083
1084         obd->u.obt.obt_sb = mnt->mnt_root->d_inode->i_sb;
1085         OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
1086         obd->obd_lvfs_ctxt.pwdmnt = mnt;
1087         obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
1088         obd->obd_lvfs_ctxt.fs = get_ds();
1089
1090         EXIT;
1091 }
1092
1093 /**
1094  * Note: we do not count into QUOTA here.
1095  * If we mount with --data_journal we may need more.
1096  */
1097 const int osd_dto_credits_noquota[DTO_NR] = {
1098         /**
1099          * Insert/Delete.
1100          * INDEX_EXTRA_TRANS_BLOCKS(8) +
1101          * SINGLEDATA_TRANS_BLOCKS(8)
1102          * XXX Note: maybe iam need more, since iam have more level than
1103          *           EXT3 htree.
1104          */
1105         [DTO_INDEX_INSERT]  = 16,
1106         [DTO_INDEX_DELETE]  = 16,
1107         /**
1108          * Used for OI scrub
1109          */
1110         [DTO_INDEX_UPDATE]  = 16,
1111         /**
1112          * Create a object. The same as create object in EXT3.
1113          * DATA_TRANS_BLOCKS(14) +
1114          * INDEX_EXTRA_BLOCKS(8) +
1115          * 3(inode bits, groups, GDT)
1116          */
1117         [DTO_OBJECT_CREATE] = 25,
1118         /**
1119          * XXX: real credits to be fixed
1120          */
1121         [DTO_OBJECT_DELETE] = 25,
1122         /**
1123          * Attr set credits (inode)
1124          */
1125         [DTO_ATTR_SET_BASE] = 1,
1126         /**
1127          * Xattr set. The same as xattr of EXT3.
1128          * DATA_TRANS_BLOCKS(14)
1129          * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1130          * are also counted in. Do not know why?
1131          */
1132         [DTO_XATTR_SET]     = 14,
1133         [DTO_LOG_REC]       = 14,
1134         /**
1135          * credits for inode change during write.
1136          */
1137         [DTO_WRITE_BASE]    = 3,
1138         /**
1139          * credits for single block write.
1140          */
1141         [DTO_WRITE_BLOCK]   = 14,
1142         /**
1143          * Attr set credits for chown.
1144          * This is extra credits for setattr, and it is null without quota
1145          */
1146         [DTO_ATTR_SET_CHOWN]= 0
1147 };
1148
1149 static const struct dt_device_operations osd_dt_ops = {
1150         .dt_root_get       = osd_root_get,
1151         .dt_statfs         = osd_statfs,
1152         .dt_trans_create   = osd_trans_create,
1153         .dt_trans_start    = osd_trans_start,
1154         .dt_trans_stop     = osd_trans_stop,
1155         .dt_trans_cb_add   = osd_trans_cb_add,
1156         .dt_conf_get       = osd_conf_get,
1157         .dt_sync           = osd_sync,
1158         .dt_ro             = osd_ro,
1159         .dt_commit_async   = osd_commit_async,
1160         .dt_init_capa_ctxt = osd_init_capa_ctxt,
1161         .dt_init_quota_ctxt= osd_init_quota_ctxt,
1162 };
1163
1164 static void osd_object_read_lock(const struct lu_env *env,
1165                                  struct dt_object *dt, unsigned role)
1166 {
1167         struct osd_object *obj = osd_dt_obj(dt);
1168         struct osd_thread_info *oti = osd_oti_get(env);
1169
1170         LINVRNT(osd_invariant(obj));
1171
1172         LASSERT(obj->oo_owner != env);
1173         cfs_down_read_nested(&obj->oo_sem, role);
1174
1175         LASSERT(obj->oo_owner == NULL);
1176         oti->oti_r_locks++;
1177 }
1178
1179 static void osd_object_write_lock(const struct lu_env *env,
1180                                   struct dt_object *dt, unsigned role)
1181 {
1182         struct osd_object *obj = osd_dt_obj(dt);
1183         struct osd_thread_info *oti = osd_oti_get(env);
1184
1185         LINVRNT(osd_invariant(obj));
1186
1187         LASSERT(obj->oo_owner != env);
1188         cfs_down_write_nested(&obj->oo_sem, role);
1189
1190         LASSERT(obj->oo_owner == NULL);
1191         obj->oo_owner = env;
1192         oti->oti_w_locks++;
1193 }
1194
1195 static void osd_object_read_unlock(const struct lu_env *env,
1196                                    struct dt_object *dt)
1197 {
1198         struct osd_object *obj = osd_dt_obj(dt);
1199         struct osd_thread_info *oti = osd_oti_get(env);
1200
1201         LINVRNT(osd_invariant(obj));
1202
1203         LASSERT(oti->oti_r_locks > 0);
1204         oti->oti_r_locks--;
1205         cfs_up_read(&obj->oo_sem);
1206 }
1207
1208 static void osd_object_write_unlock(const struct lu_env *env,
1209                                     struct dt_object *dt)
1210 {
1211         struct osd_object *obj = osd_dt_obj(dt);
1212         struct osd_thread_info *oti = osd_oti_get(env);
1213
1214         LINVRNT(osd_invariant(obj));
1215
1216         LASSERT(obj->oo_owner == env);
1217         LASSERT(oti->oti_w_locks > 0);
1218         oti->oti_w_locks--;
1219         obj->oo_owner = NULL;
1220         cfs_up_write(&obj->oo_sem);
1221 }
1222
1223 static int osd_object_write_locked(const struct lu_env *env,
1224                                    struct dt_object *dt)
1225 {
1226         struct osd_object *obj = osd_dt_obj(dt);
1227
1228         LINVRNT(osd_invariant(obj));
1229
1230         return obj->oo_owner == env;
1231 }
1232
1233 static int capa_is_sane(const struct lu_env *env,
1234                         struct osd_device *dev,
1235                         struct lustre_capa *capa,
1236                         struct lustre_capa_key *keys)
1237 {
1238         struct osd_thread_info *oti = osd_oti_get(env);
1239         struct lustre_capa *tcapa = &oti->oti_capa;
1240         struct obd_capa *oc;
1241         int i, rc = 0;
1242         ENTRY;
1243
1244         oc = capa_lookup(dev->od_capa_hash, capa, 0);
1245         if (oc) {
1246                 if (capa_is_expired(oc)) {
1247                         DEBUG_CAPA(D_ERROR, capa, "expired");
1248                         rc = -ESTALE;
1249                 }
1250                 capa_put(oc);
1251                 RETURN(rc);
1252         }
1253
1254         if (capa_is_expired_sec(capa)) {
1255                 DEBUG_CAPA(D_ERROR, capa, "expired");
1256                 RETURN(-ESTALE);
1257         }
1258
1259         cfs_spin_lock(&capa_lock);
1260         for (i = 0; i < 2; i++) {
1261                 if (keys[i].lk_keyid == capa->lc_keyid) {
1262                         oti->oti_capa_key = keys[i];
1263                         break;
1264                 }
1265         }
1266         cfs_spin_unlock(&capa_lock);
1267
1268         if (i == 2) {
1269                 DEBUG_CAPA(D_ERROR, capa, "no matched capa key");
1270                 RETURN(-ESTALE);
1271         }
1272
1273         rc = capa_hmac(tcapa->lc_hmac, capa, oti->oti_capa_key.lk_key);
1274         if (rc)
1275                 RETURN(rc);
1276
1277         if (memcmp(tcapa->lc_hmac, capa->lc_hmac, sizeof(capa->lc_hmac))) {
1278                 DEBUG_CAPA(D_ERROR, capa, "HMAC mismatch");
1279                 RETURN(-EACCES);
1280         }
1281
1282         oc = capa_add(dev->od_capa_hash, capa);
1283         capa_put(oc);
1284
1285         RETURN(0);
1286 }
1287
1288 int osd_object_auth(const struct lu_env *env, struct dt_object *dt,
1289                     struct lustre_capa *capa, __u64 opc)
1290 {
1291         const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
1292         struct osd_device *dev = osd_dev(dt->do_lu.lo_dev);
1293         struct md_capainfo *ci;
1294         int rc;
1295
1296         if (!dev->od_fl_capa)
1297                 return 0;
1298
1299         if (capa == BYPASS_CAPA)
1300                 return 0;
1301
1302         ci = md_capainfo(env);
1303         if (unlikely(!ci))
1304                 return 0;
1305
1306         if (ci->mc_auth == LC_ID_NONE)
1307                 return 0;
1308
1309         if (!capa) {
1310                 CERROR("no capability is provided for fid "DFID"\n", PFID(fid));
1311                 return -EACCES;
1312         }
1313
1314         if (!lu_fid_eq(fid, &capa->lc_fid)) {
1315                 DEBUG_CAPA(D_ERROR, capa, "fid "DFID" mismatch with",
1316                            PFID(fid));
1317                 return -EACCES;
1318         }
1319
1320         if (!capa_opc_supported(capa, opc)) {
1321                 DEBUG_CAPA(D_ERROR, capa, "opc "LPX64" not supported by", opc);
1322                 return -EACCES;
1323         }
1324
1325         if ((rc = capa_is_sane(env, dev, capa, dev->od_capa_keys))) {
1326                 DEBUG_CAPA(D_ERROR, capa, "insane (rc %d)", rc);
1327                 return -EACCES;
1328         }
1329
1330         return 0;
1331 }
1332
1333 static struct timespec *osd_inode_time(const struct lu_env *env,
1334                                        struct inode *inode, __u64 seconds)
1335 {
1336         struct osd_thread_info  *oti = osd_oti_get(env);
1337         struct timespec         *t   = &oti->oti_time;
1338
1339         t->tv_sec = seconds;
1340         t->tv_nsec = 0;
1341         *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1342         return t;
1343 }
1344
1345
1346 static void osd_inode_getattr(const struct lu_env *env,
1347                               struct inode *inode, struct lu_attr *attr)
1348 {
1349         attr->la_valid      |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1350                                LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1351                                LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE;
1352
1353         attr->la_atime      = LTIME_S(inode->i_atime);
1354         attr->la_mtime      = LTIME_S(inode->i_mtime);
1355         attr->la_ctime      = LTIME_S(inode->i_ctime);
1356         attr->la_mode       = inode->i_mode;
1357         attr->la_size       = i_size_read(inode);
1358         attr->la_blocks     = inode->i_blocks;
1359         attr->la_uid        = inode->i_uid;
1360         attr->la_gid        = inode->i_gid;
1361         attr->la_flags      = LDISKFS_I(inode)->i_flags;
1362         attr->la_nlink      = inode->i_nlink;
1363         attr->la_rdev       = inode->i_rdev;
1364         attr->la_blksize    = 1 << inode->i_blkbits;
1365         attr->la_blkbits    = inode->i_blkbits;
1366 }
1367
1368 static int osd_attr_get(const struct lu_env *env,
1369                         struct dt_object *dt,
1370                         struct lu_attr *attr,
1371                         struct lustre_capa *capa)
1372 {
1373         struct osd_object *obj = osd_dt_obj(dt);
1374
1375         LASSERT(dt_object_exists(dt));
1376         LINVRNT(osd_invariant(obj));
1377
1378         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
1379                 return -EACCES;
1380
1381         cfs_spin_lock(&obj->oo_guard);
1382         osd_inode_getattr(env, obj->oo_inode, attr);
1383         cfs_spin_unlock(&obj->oo_guard);
1384         return 0;
1385 }
1386
1387 static int osd_declare_attr_set(const struct lu_env *env,
1388                                 struct dt_object *dt,
1389                                 const struct lu_attr *attr,
1390                                 struct thandle *handle)
1391 {
1392         struct osd_thandle     *oh;
1393         struct osd_object      *obj;
1394         struct osd_thread_info *info = osd_oti_get(env);
1395         struct lquota_id_info  *qi = &info->oti_qi;
1396         long long               bspace;
1397         int                     rc = 0;
1398         bool                    allocated;
1399         ENTRY;
1400
1401         LASSERT(dt != NULL);
1402         LASSERT(handle != NULL);
1403
1404         obj = osd_dt_obj(dt);
1405         LASSERT(osd_invariant(obj));
1406
1407         oh = container_of0(handle, struct osd_thandle, ot_super);
1408         LASSERT(oh->ot_handle == NULL);
1409
1410         OSD_DECLARE_OP(oh, attr_set);
1411         oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
1412
1413         if (attr == NULL || obj->oo_inode == NULL)
1414                 RETURN(rc);
1415
1416         bspace   = obj->oo_inode->i_blocks;
1417         bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
1418         bspace   = toqb(bspace);
1419
1420         /* Changing ownership is always preformed by super user, it should not
1421          * fail with EDQUOT.
1422          *
1423          * We still need to call the osd_declare_qid() to calculate the journal
1424          * credits for updating quota accounting files and to trigger quota
1425          * space adjustment once the operation is completed.*/
1426         if ((attr->la_valid & LA_UID) != 0 &&
1427              attr->la_uid != obj->oo_inode->i_uid) {
1428                 qi->lqi_type = USRQUOTA;
1429
1430                 /* inode accounting */
1431                 qi->lqi_is_blk = false;
1432
1433                 /* one more inode for the new owner ... */
1434                 qi->lqi_id.qid_uid = attr->la_uid;
1435                 qi->lqi_space      = 1;
1436                 allocated = (attr->la_uid == 0) ? true : false;
1437                 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1438                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1439                         rc = 0;
1440                 if (rc)
1441                         RETURN(rc);
1442
1443                 /* and one less inode for the current uid */
1444                 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1445                 qi->lqi_space      = -1;
1446                 rc = osd_declare_qid(env, oh, qi, true, NULL);
1447                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1448                         rc = 0;
1449                 if (rc)
1450                         RETURN(rc);
1451
1452                 /* block accounting */
1453                 qi->lqi_is_blk = true;
1454
1455                 /* more blocks for the new owner ... */
1456                 qi->lqi_id.qid_uid = attr->la_uid;
1457                 qi->lqi_space      = bspace;
1458                 allocated = (attr->la_uid == 0) ? true : false;
1459                 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1460                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1461                         rc = 0;
1462                 if (rc)
1463                         RETURN(rc);
1464
1465                 /* and finally less blocks for the current owner */
1466                 qi->lqi_id.qid_uid = obj->oo_inode->i_uid;
1467                 qi->lqi_space      = -bspace;
1468                 rc = osd_declare_qid(env, oh, qi, true, NULL);
1469                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1470                         rc = 0;
1471                 if (rc)
1472                         RETURN(rc);
1473         }
1474
1475         if (attr->la_valid & LA_GID &&
1476             attr->la_gid != obj->oo_inode->i_gid) {
1477                 qi->lqi_type = GRPQUOTA;
1478
1479                 /* inode accounting */
1480                 qi->lqi_is_blk = false;
1481
1482                 /* one more inode for the new group owner ... */
1483                 qi->lqi_id.qid_gid = attr->la_gid;
1484                 qi->lqi_space      = 1;
1485                 allocated = (attr->la_gid == 0) ? true : false;
1486                 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1487                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1488                         rc = 0;
1489                 if (rc)
1490                         RETURN(rc);
1491
1492                 /* and one less inode for the current gid */
1493                 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1494                 qi->lqi_space      = -1;
1495                 rc = osd_declare_qid(env, oh, qi, true, NULL);
1496                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1497                         rc = 0;
1498                 if (rc)
1499                         RETURN(rc);
1500
1501                 /* block accounting */
1502                 qi->lqi_is_blk = true;
1503
1504                 /* more blocks for the new owner ... */
1505                 qi->lqi_id.qid_gid = attr->la_gid;
1506                 qi->lqi_space      = bspace;
1507                 allocated = (attr->la_gid == 0) ? true : false;
1508                 rc = osd_declare_qid(env, oh, qi, allocated, NULL);
1509                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1510                         rc = 0;
1511                 if (rc)
1512                         RETURN(rc);
1513
1514                 /* and finally less blocks for the current owner */
1515                 qi->lqi_id.qid_gid = obj->oo_inode->i_gid;
1516                 qi->lqi_space      = -bspace;
1517                 rc = osd_declare_qid(env, oh, qi, true, NULL);
1518                 if (rc == -EDQUOT || rc == -EINPROGRESS)
1519                         rc = 0;
1520                 if (rc)
1521                         RETURN(rc);
1522         }
1523
1524         RETURN(rc);
1525 }
1526
1527 static int osd_inode_setattr(const struct lu_env *env,
1528                              struct inode *inode, const struct lu_attr *attr)
1529 {
1530         __u64 bits;
1531
1532         bits = attr->la_valid;
1533
1534         LASSERT(!(bits & LA_TYPE)); /* Huh? You want too much. */
1535
1536         if (bits & LA_ATIME)
1537                 inode->i_atime  = *osd_inode_time(env, inode, attr->la_atime);
1538         if (bits & LA_CTIME)
1539                 inode->i_ctime  = *osd_inode_time(env, inode, attr->la_ctime);
1540         if (bits & LA_MTIME)
1541                 inode->i_mtime  = *osd_inode_time(env, inode, attr->la_mtime);
1542         if (bits & LA_SIZE) {
1543                 LDISKFS_I(inode)->i_disksize = attr->la_size;
1544                 i_size_write(inode, attr->la_size);
1545         }
1546
1547 #if 0
1548         /* OSD should not change "i_blocks" which is used by quota.
1549          * "i_blocks" should be changed by ldiskfs only. */
1550         if (bits & LA_BLOCKS)
1551                 inode->i_blocks = attr->la_blocks;
1552 #endif
1553         if (bits & LA_MODE)
1554                 inode->i_mode   = (inode->i_mode & S_IFMT) |
1555                         (attr->la_mode & ~S_IFMT);
1556         if (bits & LA_UID)
1557                 inode->i_uid    = attr->la_uid;
1558         if (bits & LA_GID)
1559                 inode->i_gid    = attr->la_gid;
1560         if (bits & LA_NLINK)
1561                 inode->i_nlink  = attr->la_nlink;
1562         if (bits & LA_RDEV)
1563                 inode->i_rdev   = attr->la_rdev;
1564
1565         if (bits & LA_FLAGS) {
1566                 /* always keep S_NOCMTIME */
1567                 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
1568                                  S_NOCMTIME;
1569         }
1570         return 0;
1571 }
1572
1573 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
1574 {
1575         if ((attr->la_valid & LA_UID && attr->la_uid != inode->i_uid) ||
1576             (attr->la_valid & LA_GID && attr->la_gid != inode->i_gid)) {
1577                 struct iattr    iattr;
1578                 int             rc;
1579
1580                 iattr.ia_valid = 0;
1581                 if (attr->la_valid & LA_UID)
1582                         iattr.ia_valid |= ATTR_UID;
1583                 if (attr->la_valid & LA_GID)
1584                         iattr.ia_valid |= ATTR_GID;
1585                 iattr.ia_uid = attr->la_uid;
1586                 iattr.ia_gid = attr->la_gid;
1587
1588                 rc = ll_vfs_dq_transfer(inode, &iattr);
1589                 if (rc) {
1590                         CERROR("%s: quota transfer failed: rc = %d. Is quota "
1591                                "enforcement enabled on the ldiskfs filesystem?",
1592                                inode->i_sb->s_id, rc);
1593                         return rc;
1594                 }
1595         }
1596         return 0;
1597 }
1598
1599 static int osd_attr_set(const struct lu_env *env,
1600                         struct dt_object *dt,
1601                         const struct lu_attr *attr,
1602                         struct thandle *handle,
1603                         struct lustre_capa *capa)
1604 {
1605         struct osd_object *obj = osd_dt_obj(dt);
1606         struct inode      *inode;
1607         int rc;
1608
1609         LASSERT(handle != NULL);
1610         LASSERT(dt_object_exists(dt));
1611         LASSERT(osd_invariant(obj));
1612
1613         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
1614                 return -EACCES;
1615
1616         OSD_EXEC_OP(handle, attr_set);
1617
1618         inode = obj->oo_inode;
1619         if (!osd_dt_dev(handle->th_dev)->od_is_md) {
1620                 /* OFD support */
1621                 rc = osd_quota_transfer(inode, attr);
1622                 if (rc)
1623                         return rc;
1624         } else {
1625 #ifdef HAVE_QUOTA_SUPPORT
1626                 if ((attr->la_valid & LA_UID && attr->la_uid != inode->i_uid) ||
1627                     (attr->la_valid & LA_GID && attr->la_gid != inode->i_gid)) {
1628                         struct osd_ctxt *save = &osd_oti_get(env)->oti_ctxt;
1629                         struct           iattr iattr;
1630                         int              rc;
1631
1632                         iattr.ia_valid = 0;
1633                         if (attr->la_valid & LA_UID)
1634                                 iattr.ia_valid |= ATTR_UID;
1635                         if (attr->la_valid & LA_GID)
1636                                 iattr.ia_valid |= ATTR_GID;
1637                         iattr.ia_uid = attr->la_uid;
1638                         iattr.ia_gid = attr->la_gid;
1639                         osd_push_ctxt(env, save, 1);
1640                         rc = ll_vfs_dq_transfer(inode, &iattr) ? -EDQUOT : 0;
1641                         osd_pop_ctxt(save, 1);
1642                         if (rc != 0)
1643                                 return rc;
1644                 }
1645 #endif
1646         }
1647         cfs_spin_lock(&obj->oo_guard);
1648         rc = osd_inode_setattr(env, inode, attr);
1649         cfs_spin_unlock(&obj->oo_guard);
1650
1651         if (!rc)
1652                 inode->i_sb->s_op->dirty_inode(inode);
1653         return rc;
1654 }
1655
1656 struct dentry *osd_child_dentry_get(const struct lu_env *env,
1657                                     struct osd_object *obj,
1658                                     const char *name, const int namelen)
1659 {
1660         return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
1661 }
1662
1663 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
1664                       cfs_umode_t mode,
1665                       struct dt_allocation_hint *hint,
1666                       struct thandle *th)
1667 {
1668         int result;
1669         struct osd_device  *osd = osd_obj2dev(obj);
1670         struct osd_thandle *oth;
1671         struct dt_object   *parent = NULL;
1672         struct inode       *inode;
1673 #ifdef HAVE_QUOTA_SUPPORT
1674         struct osd_ctxt    *save = &info->oti_ctxt;
1675 #endif
1676
1677         LINVRNT(osd_invariant(obj));
1678         LASSERT(obj->oo_inode == NULL);
1679         LASSERT(obj->oo_hl_head == NULL);
1680
1681         if (S_ISDIR(mode) && ldiskfs_pdo) {
1682                 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1683                 if (obj->oo_hl_head == NULL)
1684                         return -ENOMEM;
1685         }
1686
1687         oth = container_of(th, struct osd_thandle, ot_super);
1688         LASSERT(oth->ot_handle->h_transaction != NULL);
1689
1690         if (hint && hint->dah_parent)
1691                 parent = hint->dah_parent;
1692
1693 #ifdef HAVE_QUOTA_SUPPORT
1694         osd_push_ctxt(info->oti_env, save, osd_dt_dev(th->th_dev)->od_is_md);
1695 #endif
1696         inode = ldiskfs_create_inode(oth->ot_handle,
1697                                      parent ? osd_dt_obj(parent)->oo_inode :
1698                                               osd_sb(osd)->s_root->d_inode,
1699                                      mode);
1700 #ifdef HAVE_QUOTA_SUPPORT
1701         osd_pop_ctxt(save, osd_dt_dev(th->th_dev)->od_is_md);
1702 #endif
1703         if (!IS_ERR(inode)) {
1704                 /* Do not update file c/mtime in ldiskfs.
1705                  * NB: don't need any lock because no contention at this
1706                  * early stage */
1707                 inode->i_flags |= S_NOCMTIME;
1708                 inode->i_state |= I_LUSTRE_NOSCRUB;
1709                 obj->oo_inode = inode;
1710                 result = 0;
1711         } else {
1712                 if (obj->oo_hl_head != NULL) {
1713                         ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1714                         obj->oo_hl_head = NULL;
1715                 }
1716                 result = PTR_ERR(inode);
1717         }
1718         LINVRNT(osd_invariant(obj));
1719         return result;
1720 }
1721
1722 enum {
1723         OSD_NAME_LEN = 255
1724 };
1725
1726 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
1727                      struct lu_attr *attr,
1728                      struct dt_allocation_hint *hint,
1729                      struct dt_object_format *dof,
1730                      struct thandle *th)
1731 {
1732         int result;
1733         struct osd_thandle *oth;
1734         struct osd_device *osd = osd_obj2dev(obj);
1735         __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
1736
1737         LASSERT(S_ISDIR(attr->la_mode));
1738
1739         oth = container_of(th, struct osd_thandle, ot_super);
1740         LASSERT(oth->ot_handle->h_transaction != NULL);
1741         result = osd_mkfile(info, obj, mode, hint, th);
1742         if (result == 0 && osd->od_iop_mode == 0) {
1743                 LASSERT(obj->oo_inode != NULL);
1744                 /*
1745                  * XXX uh-oh... call low-level iam function directly.
1746                  */
1747
1748                 result = iam_lvar_create(obj->oo_inode, OSD_NAME_LEN, 4,
1749                                          sizeof (struct osd_fid_pack),
1750                                          oth->ot_handle);
1751         }
1752         return result;
1753 }
1754
1755 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
1756                         struct lu_attr *attr,
1757                         struct dt_allocation_hint *hint,
1758                         struct dt_object_format *dof,
1759                         struct thandle *th)
1760 {
1761         int result;
1762         struct osd_thandle *oth;
1763         const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
1764
1765         __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
1766
1767         LASSERT(S_ISREG(attr->la_mode));
1768
1769         oth = container_of(th, struct osd_thandle, ot_super);
1770         LASSERT(oth->ot_handle->h_transaction != NULL);
1771
1772         result = osd_mkfile(info, obj, mode, hint, th);
1773         if (result == 0) {
1774                 LASSERT(obj->oo_inode != NULL);
1775                 if (feat->dif_flags & DT_IND_VARKEY)
1776                         result = iam_lvar_create(obj->oo_inode,
1777                                                  feat->dif_keysize_max,
1778                                                  feat->dif_ptrsize,
1779                                                  feat->dif_recsize_max,
1780                                                  oth->ot_handle);
1781                 else
1782                         result = iam_lfix_create(obj->oo_inode,
1783                                                  feat->dif_keysize_max,
1784                                                  feat->dif_ptrsize,
1785                                                  feat->dif_recsize_max,
1786                                                  oth->ot_handle);
1787
1788         }
1789         return result;
1790 }
1791
1792 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
1793                      struct lu_attr *attr,
1794                      struct dt_allocation_hint *hint,
1795                      struct dt_object_format *dof,
1796                      struct thandle *th)
1797 {
1798         LASSERT(S_ISREG(attr->la_mode));
1799         return osd_mkfile(info, obj, (attr->la_mode &
1800                                (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1801 }
1802
1803 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
1804                      struct lu_attr *attr,
1805                      struct dt_allocation_hint *hint,
1806                      struct dt_object_format *dof,
1807                      struct thandle *th)
1808 {
1809         LASSERT(S_ISLNK(attr->la_mode));
1810         return osd_mkfile(info, obj, (attr->la_mode &
1811                               (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
1812 }
1813
1814 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
1815                      struct lu_attr *attr,
1816                      struct dt_allocation_hint *hint,
1817                      struct dt_object_format *dof,
1818                      struct thandle *th)
1819 {
1820         cfs_umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
1821         int result;
1822
1823         LINVRNT(osd_invariant(obj));
1824         LASSERT(obj->oo_inode == NULL);
1825         LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
1826                 S_ISFIFO(mode) || S_ISSOCK(mode));
1827
1828         result = osd_mkfile(info, obj, mode, hint, th);
1829         if (result == 0) {
1830                 LASSERT(obj->oo_inode != NULL);
1831                 /*
1832                  * This inode should be marked dirty for i_rdev.  Currently
1833                  * that is done in the osd_attr_init().
1834                  */
1835                 init_special_inode(obj->oo_inode, mode, attr->la_rdev);
1836         }
1837         LINVRNT(osd_invariant(obj));
1838         return result;
1839 }
1840
1841 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
1842                               struct lu_attr *,
1843                               struct dt_allocation_hint *hint,
1844                               struct dt_object_format *dof,
1845                               struct thandle *);
1846
1847 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
1848 {
1849         osd_obj_type_f result;
1850
1851         switch (type) {
1852         case DFT_DIR:
1853                 result = osd_mkdir;
1854                 break;
1855         case DFT_REGULAR:
1856                 result = osd_mkreg;
1857                 break;
1858         case DFT_SYM:
1859                 result = osd_mksym;
1860                 break;
1861         case DFT_NODE:
1862                 result = osd_mknod;
1863                 break;
1864         case DFT_INDEX:
1865                 result = osd_mk_index;
1866                 break;
1867
1868         default:
1869                 LBUG();
1870                 break;
1871         }
1872         return result;
1873 }
1874
1875
1876 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
1877                         struct dt_object *parent, struct dt_object *child,
1878                         cfs_umode_t child_mode)
1879 {
1880         LASSERT(ah);
1881
1882         memset(ah, 0, sizeof(*ah));
1883         ah->dah_parent = parent;
1884         ah->dah_mode = child_mode;
1885 }
1886
1887 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
1888                           struct lu_attr *attr, struct dt_object_format *dof)
1889 {
1890         struct inode   *inode = obj->oo_inode;
1891         __u64           valid = attr->la_valid;
1892         int             result;
1893
1894         attr->la_valid &= ~(LA_TYPE | LA_MODE);
1895
1896         if (dof->dof_type != DFT_NODE)
1897                 attr->la_valid &= ~LA_RDEV;
1898         if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
1899                 attr->la_valid &= ~LA_ATIME;
1900         if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
1901                 attr->la_valid &= ~LA_CTIME;
1902         if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
1903                 attr->la_valid &= ~LA_MTIME;
1904
1905         if (!osd_obj2dev(obj)->od_is_md) {
1906                 /* OFD support */
1907                 result = osd_quota_transfer(inode, attr);
1908                 if (result)
1909                         return;
1910         } else {
1911 #ifdef HAVE_QUOTA_SUPPORT
1912                 attr->la_valid &= ~(LA_UID | LA_GID);
1913 #endif
1914         }
1915
1916         if (attr->la_valid != 0) {
1917                 result = osd_inode_setattr(info->oti_env, inode, attr);
1918                 /*
1919                  * The osd_inode_setattr() should always succeed here.  The
1920                  * only error that could be returned is EDQUOT when we are
1921                  * trying to change the UID or GID of the inode. However, this
1922                  * should not happen since quota enforcement is no longer
1923                  * enabled on ldiskfs (lquota takes care of it).
1924                  */
1925                 LASSERTF(result == 0, "%d", result);
1926                 inode->i_sb->s_op->dirty_inode(inode);
1927         }
1928
1929         attr->la_valid = valid;
1930 }
1931
1932 /**
1933  * Helper function for osd_object_create()
1934  *
1935  * \retval 0, on success
1936  */
1937 static int __osd_object_create(struct osd_thread_info *info,
1938                                struct osd_object *obj, struct lu_attr *attr,
1939                                struct dt_allocation_hint *hint,
1940                                struct dt_object_format *dof,
1941                                struct thandle *th)
1942 {
1943         int     result;
1944         __u32   umask;
1945
1946         /* we drop umask so that permissions we pass are not affected */
1947         umask = current->fs->umask;
1948         current->fs->umask = 0;
1949
1950         result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
1951                                                   th);
1952         if (result == 0) {
1953                 osd_attr_init(info, obj, attr, dof);
1954                 osd_object_init0(obj);
1955                 /* bz 24037 */
1956                 if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
1957                         unlock_new_inode(obj->oo_inode);
1958         }
1959
1960         /* restore previous umask value */
1961         current->fs->umask = umask;
1962
1963         return result;
1964 }
1965
1966 /**
1967  * Helper function for osd_object_create()
1968  *
1969  * \retval 0, on success
1970  */
1971 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
1972                            const struct lu_fid *fid, struct thandle *th)
1973 {
1974         struct osd_thread_info *info = osd_oti_get(env);
1975         struct osd_inode_id    *id   = &info->oti_id;
1976         struct osd_device      *osd  = osd_obj2dev(obj);
1977
1978         LASSERT(obj->oo_inode != NULL);
1979
1980         if (osd->od_is_md) {
1981                 struct md_ucred *uc = md_ucred(env);
1982                 LASSERT(uc != NULL);
1983         }
1984
1985         osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
1986         return osd_oi_insert(info, osd, fid, id, th);
1987 }
1988
1989 static int osd_declare_object_create(const struct lu_env *env,
1990                                      struct dt_object *dt,
1991                                      struct lu_attr *attr,
1992                                      struct dt_allocation_hint *hint,
1993                                      struct dt_object_format *dof,
1994                                      struct thandle *handle)
1995 {
1996         struct osd_thandle      *oh;
1997         int                      rc;
1998         ENTRY;
1999
2000         LASSERT(handle != NULL);
2001
2002         oh = container_of0(handle, struct osd_thandle, ot_super);
2003         LASSERT(oh->ot_handle == NULL);
2004
2005         OSD_DECLARE_OP(oh, create);
2006         oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
2007         /* XXX: So far, only normal fid needs be inserted into the oi,
2008          *      things could be changed later. Revise following code then. */
2009         if (fid_is_norm(lu_object_fid(&dt->do_lu))) {
2010                 OSD_DECLARE_OP(oh, insert);
2011                 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
2012                 /* Reuse idle OI block may cause additional one OI block
2013                  * to be changed. */
2014                 oh->ot_credits += 1;
2015         }
2016         /* If this is directory, then we expect . and .. to be inserted as
2017          * well. The one directory block always needs to be created for the
2018          * directory, so we could use DTO_WRITE_BASE here (GDT, block bitmap,
2019          * block), there is no danger of needing a tree for the first block.
2020          */
2021         if (attr && S_ISDIR(attr->la_mode)) {
2022                 OSD_DECLARE_OP(oh, insert);
2023                 OSD_DECLARE_OP(oh, insert);
2024                 oh->ot_credits += osd_dto_credits_noquota[DTO_WRITE_BASE];
2025         }
2026
2027         if (!attr)
2028                 RETURN(0);
2029
2030         rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
2031                                    false, false, NULL, false);
2032         RETURN(rc);
2033 }
2034
2035 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
2036                              struct lu_attr *attr,
2037                              struct dt_allocation_hint *hint,
2038                              struct dt_object_format *dof,
2039                              struct thandle *th)
2040 {
2041         const struct lu_fid    *fid    = lu_object_fid(&dt->do_lu);
2042         struct osd_object      *obj    = osd_dt_obj(dt);
2043         struct osd_thread_info *info   = osd_oti_get(env);
2044         int result;
2045
2046         ENTRY;
2047
2048         LINVRNT(osd_invariant(obj));
2049         LASSERT(!dt_object_exists(dt));
2050         LASSERT(osd_write_locked(env, obj));
2051         LASSERT(th != NULL);
2052
2053         if (unlikely(fid_is_acct(fid)))
2054                 /* Quota files can't be created from the kernel any more,
2055                  * 'tune2fs -O quota' will take care of creating them */
2056                 RETURN(-EPERM);
2057
2058         OSD_EXEC_OP(th, create);
2059
2060         result = __osd_object_create(info, obj, attr, hint, dof, th);
2061         if (result == 0)
2062                 result = __osd_oi_insert(env, obj, fid, th);
2063
2064         LASSERT(ergo(result == 0, dt_object_exists(dt)));
2065         LASSERT(osd_invariant(obj));
2066         RETURN(result);
2067 }
2068
2069 /**
2070  * Called to destroy on-disk representation of the object
2071  *
2072  * Concurrency: must be locked
2073  */
2074 static int osd_declare_object_destroy(const struct lu_env *env,
2075                                       struct dt_object *dt,
2076                                       struct thandle *th)
2077 {
2078         struct osd_object  *obj = osd_dt_obj(dt);
2079         struct inode       *inode = obj->oo_inode;
2080         struct osd_thandle *oh;
2081         int                 rc;
2082         ENTRY;
2083
2084         oh = container_of0(th, struct osd_thandle, ot_super);
2085         LASSERT(oh->ot_handle == NULL);
2086         LASSERT(inode);
2087
2088         OSD_DECLARE_OP(oh, destroy);
2089         OSD_DECLARE_OP(oh, delete);
2090         oh->ot_credits += osd_dto_credits_noquota[DTO_OBJECT_DELETE];
2091         /* XXX: So far, only normal fid needs to be inserted into the OI,
2092          *      so only normal fid needs to be removed from the OI also. */
2093         if (fid_is_norm(lu_object_fid(&dt->do_lu))) {
2094                 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2095                 /* Recycle idle OI leaf may cause additional three OI blocks
2096                  * to be changed. */
2097                 oh->ot_credits += 3;
2098         }
2099
2100         /* one less inode */
2101         rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, -1, oh,
2102                                    false, true, NULL, false);
2103         if (rc)
2104                 RETURN(rc);
2105         /* data to be truncated */
2106         rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh, true,
2107                                    true, NULL, false);
2108         RETURN(rc);
2109 }
2110
2111 static int osd_object_destroy(const struct lu_env *env,
2112                               struct dt_object *dt,
2113                               struct thandle *th)
2114 {
2115         const struct lu_fid    *fid = lu_object_fid(&dt->do_lu);
2116         struct osd_object      *obj = osd_dt_obj(dt);
2117         struct inode           *inode = obj->oo_inode;
2118         struct osd_device      *osd = osd_obj2dev(obj);
2119         struct osd_thandle     *oh;
2120         int                     result;
2121         ENTRY;
2122
2123         oh = container_of0(th, struct osd_thandle, ot_super);
2124         LASSERT(oh->ot_handle);
2125         LASSERT(inode);
2126         LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2127
2128         if (unlikely(fid_is_acct(fid)))
2129                 RETURN(-EPERM);
2130
2131         /* Parallel control for OI scrub. For most of cases, there is no
2132          * lock contention. So it will not affect unlink performance. */
2133         cfs_mutex_lock(&inode->i_mutex);
2134         if (S_ISDIR(inode->i_mode)) {
2135                 LASSERT(osd_inode_unlinked(inode) ||
2136                         inode->i_nlink == 1);
2137                 cfs_spin_lock(&obj->oo_guard);
2138                 inode->i_nlink = 0;
2139                 cfs_spin_unlock(&obj->oo_guard);
2140                 inode->i_sb->s_op->dirty_inode(inode);
2141         } else {
2142                 LASSERT(osd_inode_unlinked(inode));
2143         }
2144
2145         OSD_EXEC_OP(th, destroy);
2146
2147         result = osd_oi_delete(osd_oti_get(env), osd, fid, th);
2148         cfs_mutex_unlock(&inode->i_mutex);
2149
2150         /* XXX: add to ext3 orphan list */
2151         /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2152
2153         /* not needed in the cache anymore */
2154         set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2155
2156         RETURN(0);
2157 }
2158
2159 /**
2160  * Helper function for osd_xattr_set()
2161  */
2162 static int __osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2163                            const struct lu_buf *buf, const char *name, int fl)
2164 {
2165         struct osd_object      *obj      = osd_dt_obj(dt);
2166         struct inode           *inode    = obj->oo_inode;
2167         struct osd_thread_info *info     = osd_oti_get(env);
2168         struct dentry          *dentry   = &info->oti_child_dentry;
2169         int                     fs_flags = 0;
2170         int                     rc;
2171
2172         LASSERT(dt_object_exists(dt));
2173         LASSERT(inode->i_op != NULL && inode->i_op->setxattr != NULL);
2174
2175         if (fl & LU_XATTR_REPLACE)
2176                 fs_flags |= XATTR_REPLACE;
2177
2178         if (fl & LU_XATTR_CREATE)
2179                 fs_flags |= XATTR_CREATE;
2180
2181         dentry->d_inode = inode;
2182         rc = inode->i_op->setxattr(dentry, name, buf->lb_buf,
2183                                    buf->lb_len, fs_flags);
2184         return rc;
2185 }
2186
2187 /**
2188  * Put the fid into lustre_mdt_attrs, and then place the structure
2189  * inode's ea. This fid should not be altered during the life time
2190  * of the inode.
2191  *
2192  * \retval +ve, on success
2193  * \retval -ve, on error
2194  *
2195  * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2196  */
2197 static int osd_ea_fid_set(const struct lu_env *env, struct dt_object *dt,
2198                           const struct lu_fid *fid)
2199 {
2200         struct osd_thread_info  *info      = osd_oti_get(env);
2201         struct lustre_mdt_attrs *mdt_attrs = &info->oti_mdt_attrs;
2202
2203         lustre_lma_init(mdt_attrs, fid);
2204         lustre_lma_swab(mdt_attrs);
2205         return __osd_xattr_set(env, dt,
2206                                osd_buf_get(env, mdt_attrs, sizeof *mdt_attrs),
2207                                XATTR_NAME_LMA, LU_XATTR_CREATE);
2208
2209 }
2210
2211 /**
2212  * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2213  * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2214  * To have compatilibility with 1.8 ldiskfs driver we need to have
2215  * magic number at start of fid data.
2216  * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2217  * its inmemory API.
2218  */
2219 void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2220                                   const struct dt_rec *fid)
2221 {
2222         param->edp_magic = LDISKFS_LUFID_MAGIC;
2223         param->edp_len =  sizeof(struct lu_fid) + 1;
2224
2225         fid_cpu_to_be((struct lu_fid *)param->edp_data,
2226                       (struct lu_fid *)fid);
2227 }
2228
2229 /**
2230  * Try to read the fid from inode ea into dt_rec, if return value
2231  * i.e. rc is +ve, then we got fid, otherwise we will have to form igif
2232  *
2233  * \param fid object fid.
2234  *
2235  * \retval 0 on success
2236  */
2237 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2238                           __u32 ino, struct lu_fid *fid,
2239                           struct osd_inode_id *id)
2240 {
2241         struct osd_thread_info *info  = osd_oti_get(env);
2242         struct inode           *inode;
2243         ENTRY;
2244
2245         osd_id_gen(id, ino, OSD_OII_NOGEN);
2246         inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2247         if (IS_ERR(inode))
2248                 RETURN(PTR_ERR(inode));
2249
2250         iput(inode);
2251         RETURN(0);
2252 }
2253
2254 /**
2255  * OSD layer object create function for interoperability mode (b11826).
2256  * This is mostly similar to osd_object_create(). Only difference being, fid is
2257  * inserted into inode ea here.
2258  *
2259  * \retval   0, on success
2260  * \retval -ve, on error
2261  */
2262 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
2263                                 struct lu_attr *attr,
2264                                 struct dt_allocation_hint *hint,
2265                                 struct dt_object_format *dof,
2266                                 struct thandle *th)
2267 {
2268         const struct lu_fid    *fid    = lu_object_fid(&dt->do_lu);
2269         struct osd_object      *obj    = osd_dt_obj(dt);
2270         struct osd_thread_info *info   = osd_oti_get(env);
2271         int                     result;
2272
2273         ENTRY;
2274
2275         LASSERT(osd_invariant(obj));
2276         LASSERT(!dt_object_exists(dt));
2277         LASSERT(osd_write_locked(env, obj));
2278         LASSERT(th != NULL);
2279
2280         if (unlikely(fid_is_acct(fid)))
2281                 /* Quota files can't be created from the kernel any more,
2282                  * 'tune2fs -O quota' will take care of creating them */
2283                 RETURN(-EPERM);
2284
2285         OSD_EXEC_OP(th, create);
2286
2287         result = __osd_object_create(info, obj, attr, hint, dof, th);
2288         /* objects under osd root shld have igif fid, so dont add fid EA */
2289         if (result == 0 && fid_seq(fid) >= FID_SEQ_NORMAL)
2290                 result = osd_ea_fid_set(env, dt, fid);
2291
2292         if (result == 0)
2293                 result = __osd_oi_insert(env, obj, fid, th);
2294
2295         LASSERT(ergo(result == 0, dt_object_exists(dt)));
2296         LINVRNT(osd_invariant(obj));
2297         RETURN(result);
2298 }
2299
2300 static int osd_declare_object_ref_add(const struct lu_env *env,
2301                                       struct dt_object *dt,
2302                                       struct thandle *handle)
2303 {
2304         struct osd_thandle *oh;
2305
2306         /* it's possible that object doesn't exist yet */
2307         LASSERT(handle != NULL);
2308
2309         oh = container_of0(handle, struct osd_thandle, ot_super);
2310         LASSERT(oh->ot_handle == NULL);
2311
2312         OSD_DECLARE_OP(oh, ref_add);
2313         oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2314
2315         return 0;
2316 }
2317
2318 /*
2319  * Concurrency: @dt is write locked.
2320  */
2321 static int osd_object_ref_add(const struct lu_env *env,
2322                               struct dt_object *dt, struct thandle *th)
2323 {
2324         struct osd_object *obj = osd_dt_obj(dt);
2325         struct inode      *inode = obj->oo_inode;
2326
2327         LINVRNT(osd_invariant(obj));
2328         LASSERT(dt_object_exists(dt));
2329         LASSERT(osd_write_locked(env, obj));
2330         LASSERT(th != NULL);
2331
2332         OSD_EXEC_OP(th, ref_add);
2333
2334         /*
2335          * DIR_NLINK feature is set for compatibility reasons if:
2336          * 1) nlinks > LDISKFS_LINK_MAX, or
2337          * 2) nlinks == 2, since this indicates i_nlink was previously 1.
2338          *
2339          * It is easier to always set this flag (rather than check and set),
2340          * since it has less overhead, and the superblock will be dirtied
2341          * at some point. Both e2fsprogs and any Lustre-supported ldiskfs
2342          * do not actually care whether this flag is set or not.
2343          */
2344         cfs_spin_lock(&obj->oo_guard);
2345         inode->i_nlink++;
2346         if (S_ISDIR(inode->i_mode) && inode->i_nlink > 1) {
2347                 if (inode->i_nlink >= LDISKFS_LINK_MAX ||
2348                     inode->i_nlink == 2)
2349                         inode->i_nlink = 1;
2350         }
2351         LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
2352         cfs_spin_unlock(&obj->oo_guard);
2353         inode->i_sb->s_op->dirty_inode(inode);
2354         LINVRNT(osd_invariant(obj));
2355
2356         return 0;
2357 }
2358
2359 static int osd_declare_object_ref_del(const struct lu_env *env,
2360                                       struct dt_object *dt,
2361                                       struct thandle *handle)
2362 {
2363         struct osd_thandle *oh;
2364
2365         LASSERT(dt_object_exists(dt));
2366         LASSERT(handle != NULL);
2367
2368         oh = container_of0(handle, struct osd_thandle, ot_super);
2369         LASSERT(oh->ot_handle == NULL);
2370
2371         OSD_DECLARE_OP(oh, ref_del);
2372         oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2373
2374         return 0;
2375 }
2376
2377 /*
2378  * Concurrency: @dt is write locked.
2379  */
2380 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
2381                               struct thandle *th)
2382 {
2383         struct osd_object *obj = osd_dt_obj(dt);
2384         struct inode      *inode = obj->oo_inode;
2385
2386         LINVRNT(osd_invariant(obj));
2387         LASSERT(dt_object_exists(dt));
2388         LASSERT(osd_write_locked(env, obj));
2389         LASSERT(th != NULL);
2390
2391         OSD_EXEC_OP(th, ref_del);
2392
2393         cfs_spin_lock(&obj->oo_guard);
2394         LASSERT(inode->i_nlink > 0);
2395         inode->i_nlink--;
2396         /* If this is/was a many-subdir directory (nlink > LDISKFS_LINK_MAX)
2397          * then the nlink count is 1. Don't let it be set to 0 or the directory
2398          * inode will be deleted incorrectly. */
2399         if (S_ISDIR(inode->i_mode) && inode->i_nlink == 0)
2400                 inode->i_nlink++;
2401         cfs_spin_unlock(&obj->oo_guard);
2402         inode->i_sb->s_op->dirty_inode(inode);
2403         LINVRNT(osd_invariant(obj));
2404
2405         return 0;
2406 }
2407
2408 /*
2409  * Get the 64-bit version for an inode.
2410  */
2411 static int osd_object_version_get(const struct lu_env *env,
2412                                   struct dt_object *dt, dt_obj_version_t *ver)
2413 {
2414         struct inode *inode = osd_dt_obj(dt)->oo_inode;
2415
2416         CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
2417                LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2418         *ver = LDISKFS_I(inode)->i_fs_version;
2419         return 0;
2420 }
2421
2422 /*
2423  * Concurrency: @dt is read locked.
2424  */
2425 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
2426                          struct lu_buf *buf, const char *name,
2427                          struct lustre_capa *capa)
2428 {
2429         struct osd_object      *obj    = osd_dt_obj(dt);
2430         struct inode           *inode  = obj->oo_inode;
2431         struct osd_thread_info *info   = osd_oti_get(env);
2432         struct dentry          *dentry = &info->oti_obj_dentry;
2433
2434         /* version get is not real XATTR but uses xattr API */
2435         if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2436                 /* for version we are just using xattr API but change inode
2437                  * field instead */
2438                 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2439                 osd_object_version_get(env, dt, buf->lb_buf);
2440                 return sizeof(dt_obj_version_t);
2441         }
2442
2443         LASSERT(dt_object_exists(dt));
2444         LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
2445
2446         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2447                 return -EACCES;
2448
2449         dentry->d_inode = inode;
2450         return inode->i_op->getxattr(dentry, name, buf->lb_buf, buf->lb_len);
2451 }
2452
2453
2454 static int osd_declare_xattr_set(const struct lu_env *env,
2455                                  struct dt_object *dt,
2456                                  const struct lu_buf *buf, const char *name,
2457                                  int fl, struct thandle *handle)
2458 {
2459         struct osd_thandle *oh;
2460
2461         LASSERT(handle != NULL);
2462
2463         oh = container_of0(handle, struct osd_thandle, ot_super);
2464         LASSERT(oh->ot_handle == NULL);
2465
2466         OSD_DECLARE_OP(oh, xattr_set);
2467         if (strcmp(name, XATTR_NAME_VERSION) == 0)
2468                 oh->ot_credits += osd_dto_credits_noquota[DTO_ATTR_SET_BASE];
2469         else
2470                 oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2471
2472         return 0;
2473 }
2474
2475 /*
2476  * Set the 64-bit version for object
2477  */
2478 static void osd_object_version_set(const struct lu_env *env,
2479                                    struct dt_object *dt,
2480                                    dt_obj_version_t *new_version)
2481 {
2482         struct inode *inode = osd_dt_obj(dt)->oo_inode;
2483
2484         CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
2485                *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
2486
2487         LDISKFS_I(inode)->i_fs_version = *new_version;
2488         /** Version is set after all inode operations are finished,
2489          *  so we should mark it dirty here */
2490         inode->i_sb->s_op->dirty_inode(inode);
2491 }
2492
2493 /*
2494  * Concurrency: @dt is write locked.
2495  */
2496 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
2497                          const struct lu_buf *buf, const char *name, int fl,
2498                          struct thandle *handle, struct lustre_capa *capa)
2499 {
2500         LASSERT(handle != NULL);
2501
2502         /* version set is not real XATTR */
2503         if (strcmp(name, XATTR_NAME_VERSION) == 0) {
2504                 /* for version we are just using xattr API but change inode
2505                  * field instead */
2506                 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
2507                 osd_object_version_set(env, dt, buf->lb_buf);
2508                 return sizeof(dt_obj_version_t);
2509         }
2510
2511         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2512                 return -EACCES;
2513
2514         OSD_EXEC_OP(handle, xattr_set);
2515         return __osd_xattr_set(env, dt, buf, name, fl);
2516 }
2517
2518 /*
2519  * Concurrency: @dt is read locked.
2520  */
2521 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
2522                           struct lu_buf *buf, struct lustre_capa *capa)
2523 {
2524         struct osd_object      *obj    = osd_dt_obj(dt);
2525         struct inode           *inode  = obj->oo_inode;
2526         struct osd_thread_info *info   = osd_oti_get(env);
2527         struct dentry          *dentry = &info->oti_obj_dentry;
2528
2529         LASSERT(dt_object_exists(dt));
2530         LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
2531         LASSERT(osd_read_locked(env, obj) || osd_write_locked(env, obj));
2532
2533         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
2534                 return -EACCES;
2535
2536         dentry->d_inode = inode;
2537         return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
2538 }
2539
2540 static int osd_declare_xattr_del(const struct lu_env *env,
2541                                  struct dt_object *dt, const char *name,
2542                                  struct thandle *handle)
2543 {
2544         struct osd_thandle *oh;
2545
2546         LASSERT(dt_object_exists(dt));
2547         LASSERT(handle != NULL);
2548
2549         oh = container_of0(handle, struct osd_thandle, ot_super);
2550         LASSERT(oh->ot_handle == NULL);
2551
2552         OSD_DECLARE_OP(oh, xattr_set);
2553         oh->ot_credits += osd_dto_credits_noquota[DTO_XATTR_SET];
2554
2555         return 0;
2556 }
2557
2558 /*
2559  * Concurrency: @dt is write locked.
2560  */
2561 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
2562                          const char *name, struct thandle *handle,
2563                          struct lustre_capa *capa)
2564 {
2565         struct osd_object      *obj    = osd_dt_obj(dt);
2566         struct inode           *inode  = obj->oo_inode;
2567         struct osd_thread_info *info   = osd_oti_get(env);
2568         struct dentry          *dentry = &info->oti_obj_dentry;
2569         int                     rc;
2570
2571         LASSERT(dt_object_exists(dt));
2572         LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
2573         LASSERT(osd_write_locked(env, obj));
2574         LASSERT(handle != NULL);
2575
2576         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
2577                 return -EACCES;
2578
2579         OSD_EXEC_OP(handle, xattr_set);
2580
2581         dentry->d_inode = inode;
2582         rc = inode->i_op->removexattr(dentry, name);
2583         return rc;
2584 }
2585
2586 static struct obd_capa *osd_capa_get(const struct lu_env *env,
2587                                      struct dt_object *dt,
2588                                      struct lustre_capa *old,
2589                                      __u64 opc)
2590 {
2591         struct osd_thread_info *info = osd_oti_get(env);
2592         const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2593         struct osd_object *obj = osd_dt_obj(dt);
2594         struct osd_device *dev = osd_obj2dev(obj);
2595         struct lustre_capa_key *key = &info->oti_capa_key;
2596         struct lustre_capa *capa = &info->oti_capa;
2597         struct obd_capa *oc;
2598         struct md_capainfo *ci;
2599         int rc;
2600         ENTRY;
2601
2602         if (!dev->od_fl_capa)
2603                 RETURN(ERR_PTR(-ENOENT));
2604
2605         LASSERT(dt_object_exists(dt));
2606         LINVRNT(osd_invariant(obj));
2607
2608         /* renewal sanity check */
2609         if (old && osd_object_auth(env, dt, old, opc))
2610                 RETURN(ERR_PTR(-EACCES));
2611
2612         ci = md_capainfo(env);
2613         if (unlikely(!ci))
2614                 RETURN(ERR_PTR(-ENOENT));
2615
2616         switch (ci->mc_auth) {
2617         case LC_ID_NONE:
2618                 RETURN(NULL);
2619         case LC_ID_PLAIN:
2620                 capa->lc_uid = obj->oo_inode->i_uid;
2621                 capa->lc_gid = obj->oo_inode->i_gid;
2622                 capa->lc_flags = LC_ID_PLAIN;
2623                 break;
2624         case LC_ID_CONVERT: {
2625                 __u32 d[4], s[4];
2626
2627                 s[0] = obj->oo_inode->i_uid;
2628                 cfs_get_random_bytes(&(s[1]), sizeof(__u32));
2629                 s[2] = obj->oo_inode->i_gid;
2630                 cfs_get_random_bytes(&(s[3]), sizeof(__u32));
2631                 rc = capa_encrypt_id(d, s, key->lk_key, CAPA_HMAC_KEY_MAX_LEN);
2632                 if (unlikely(rc))
2633                         RETURN(ERR_PTR(rc));
2634
2635                 capa->lc_uid   = ((__u64)d[1] << 32) | d[0];
2636                 capa->lc_gid   = ((__u64)d[3] << 32) | d[2];
2637                 capa->lc_flags = LC_ID_CONVERT;
2638                 break;
2639         }
2640         default:
2641                 RETURN(ERR_PTR(-EINVAL));
2642         }
2643
2644         capa->lc_fid = *fid;
2645         capa->lc_opc = opc;
2646         capa->lc_flags |= dev->od_capa_alg << 24;
2647         capa->lc_timeout = dev->od_capa_timeout;
2648         capa->lc_expiry = 0;
2649
2650         oc = capa_lookup(dev->od_capa_hash, capa, 1);
2651         if (oc) {
2652                 LASSERT(!capa_is_expired(oc));
2653                 RETURN(oc);
2654         }
2655
2656         cfs_spin_lock(&capa_lock);
2657         *key = dev->od_capa_keys[1];
2658         cfs_spin_unlock(&capa_lock);
2659
2660         capa->lc_keyid = key->lk_keyid;
2661         capa->lc_expiry = cfs_time_current_sec() + dev->od_capa_timeout;
2662
2663         rc = capa_hmac(capa->lc_hmac, capa, key->lk_key);
2664         if (rc) {
2665                 DEBUG_CAPA(D_ERROR, capa, "HMAC failed: %d for", rc);
2666                 RETURN(ERR_PTR(rc));
2667         }
2668
2669         oc = capa_add(dev->od_capa_hash, capa);
2670         RETURN(oc);
2671 }
2672
2673 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt)
2674 {
2675         struct osd_object       *obj    = osd_dt_obj(dt);
2676         struct inode            *inode  = obj->oo_inode;
2677         struct osd_thread_info  *info   = osd_oti_get(env);
2678         struct dentry           *dentry = &info->oti_obj_dentry;
2679         struct file             *file   = &info->oti_file;
2680         int                     rc;
2681
2682         ENTRY;
2683
2684         dentry->d_inode = inode;
2685         file->f_dentry = dentry;
2686         file->f_mapping = inode->i_mapping;
2687         file->f_op = inode->i_fop;
2688         mutex_lock(&inode->i_mutex);
2689         rc = file->f_op->fsync(file, dentry, 0);
2690         mutex_unlock(&inode->i_mutex);
2691         RETURN(rc);
2692 }
2693
2694 static int osd_data_get(const struct lu_env *env, struct dt_object *dt,
2695                         void **data)
2696 {
2697         struct osd_object *obj = osd_dt_obj(dt);
2698         ENTRY;
2699
2700         *data = (void *)obj->oo_inode;
2701         RETURN(0);
2702 }
2703
2704 /*
2705  * Index operations.
2706  */
2707
2708 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
2709                            const struct dt_index_features *feat)
2710 {
2711         struct iam_descr *descr;
2712
2713         if (osd_object_is_root(o))
2714                 return feat == &dt_directory_features;
2715
2716         LASSERT(o->oo_dir != NULL);
2717
2718         descr = o->oo_dir->od_container.ic_descr;
2719         if (feat == &dt_directory_features) {
2720                 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
2721                         return 1;
2722                 else
2723                         return 0;
2724         } else {
2725                 return
2726                         feat->dif_keysize_min <= descr->id_key_size &&
2727                         descr->id_key_size <= feat->dif_keysize_max &&
2728                         feat->dif_recsize_min <= descr->id_rec_size &&
2729                         descr->id_rec_size <= feat->dif_recsize_max &&
2730                         !(feat->dif_flags & (DT_IND_VARKEY |
2731                                              DT_IND_VARREC | DT_IND_NONUNQ)) &&
2732                         ergo(feat->dif_flags & DT_IND_UPDATE,
2733                              1 /* XXX check that object (and file system) is
2734                                 * writable */);
2735         }
2736 }
2737
2738 static int osd_iam_container_init(const struct lu_env *env,
2739                                   struct osd_object *obj,
2740                                   struct osd_directory *dir)
2741 {
2742         struct iam_container *bag = &dir->od_container;
2743         int result;
2744
2745         result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
2746         if (result != 0)
2747                 return result;
2748
2749         result = iam_container_setup(bag);
2750         if (result == 0)
2751                 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
2752         else
2753                 iam_container_fini(bag);
2754
2755         return result;
2756 }
2757
2758
2759 /*
2760  * Concurrency: no external locking is necessary.
2761  */
2762 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
2763                          const struct dt_index_features *feat)
2764 {
2765         int                      result;
2766         int                      skip_iam = 0;
2767         struct osd_object       *obj = osd_dt_obj(dt);
2768         struct osd_device       *osd = osd_obj2dev(obj);
2769
2770         LINVRNT(osd_invariant(obj));
2771         LASSERT(dt_object_exists(dt));
2772
2773         if (osd_object_is_root(obj)) {
2774                 dt->do_index_ops = &osd_index_ea_ops;
2775                 result = 0;
2776         } else if (feat == &dt_directory_features && osd->od_iop_mode) {
2777                 dt->do_index_ops = &osd_index_ea_ops;
2778                 if (S_ISDIR(obj->oo_inode->i_mode))
2779                         result = 0;
2780                 else
2781                         result = -ENOTDIR;
2782                 skip_iam = 1;
2783         } else if (unlikely(feat == &dt_otable_features)) {
2784                 dt->do_index_ops = &osd_otable_ops;
2785                 return 0;
2786         } else if (feat == &dt_acct_features) {
2787                 dt->do_index_ops = &osd_acct_index_ops;
2788                 result = 0;
2789                 skip_iam = 1;
2790         } else if (!osd_has_index(obj)) {
2791                 struct osd_directory *dir;
2792
2793                 OBD_ALLOC_PTR(dir);
2794                 if (dir != NULL) {
2795
2796                         cfs_spin_lock(&obj->oo_guard);
2797                         if (obj->oo_dir == NULL)
2798                                 obj->oo_dir = dir;
2799                         else
2800                                 /*
2801                                  * Concurrent thread allocated container data.
2802                                  */
2803                                 OBD_FREE_PTR(dir);
2804                         cfs_spin_unlock(&obj->oo_guard);
2805                         /*
2806                          * Now, that we have container data, serialize its
2807                          * initialization.
2808                          */
2809                         cfs_down_write(&obj->oo_ext_idx_sem);
2810                         /*
2811                          * recheck under lock.
2812                          */
2813                         if (!osd_has_index(obj))
2814                                 result = osd_iam_container_init(env, obj, dir);
2815                         else
2816                                 result = 0;
2817                         cfs_up_write(&obj->oo_ext_idx_sem);
2818                 } else {
2819                         result = -ENOMEM;
2820                 }
2821         } else {
2822                 result = 0;
2823         }
2824
2825         if (result == 0 && skip_iam == 0) {
2826                 if (!osd_iam_index_probe(env, obj, feat))
2827                         result = -ENOTDIR;
2828         }
2829         LINVRNT(osd_invariant(obj));
2830
2831         if (is_quota_glb_feat(feat))
2832                 result = osd_quota_migration(env, dt, feat);
2833
2834         return result;
2835 }
2836
2837 static int osd_otable_it_attr_get(const struct lu_env *env,
2838                                  struct dt_object *dt,
2839                                  struct lu_attr *attr,
2840                                  struct lustre_capa *capa)
2841 {
2842         attr->la_valid = 0;
2843         return 0;
2844 }
2845
2846 static const struct dt_object_operations osd_obj_ops = {
2847         .do_read_lock         = osd_object_read_lock,
2848         .do_write_lock        = osd_object_write_lock,
2849         .do_read_unlock       = osd_object_read_unlock,
2850         .do_write_unlock      = osd_object_write_unlock,
2851         .do_write_locked      = osd_object_write_locked,
2852         .do_attr_get          = osd_attr_get,
2853         .do_declare_attr_set  = osd_declare_attr_set,
2854         .do_attr_set          = osd_attr_set,
2855         .do_ah_init           = osd_ah_init,
2856         .do_declare_create    = osd_declare_object_create,
2857         .do_create            = osd_object_create,
2858         .do_declare_destroy   = osd_declare_object_destroy,
2859         .do_destroy           = osd_object_destroy,
2860         .do_index_try         = osd_index_try,
2861         .do_declare_ref_add   = osd_declare_object_ref_add,
2862         .do_ref_add           = osd_object_ref_add,
2863         .do_declare_ref_del   = osd_declare_object_ref_del,
2864         .do_ref_del           = osd_object_ref_del,
2865         .do_xattr_get         = osd_xattr_get,
2866         .do_declare_xattr_set = osd_declare_xattr_set,
2867         .do_xattr_set         = osd_xattr_set,
2868         .do_declare_xattr_del = osd_declare_xattr_del,
2869         .do_xattr_del         = osd_xattr_del,
2870         .do_xattr_list        = osd_xattr_list,
2871         .do_capa_get          = osd_capa_get,
2872         .do_object_sync       = osd_object_sync,
2873         .do_data_get          = osd_data_get,
2874 };
2875
2876 /**
2877  * dt_object_operations for interoperability mode
2878  * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
2879  */
2880 static const struct dt_object_operations osd_obj_ea_ops = {
2881         .do_read_lock         = osd_object_read_lock,
2882         .do_write_lock        = osd_object_write_lock,
2883         .do_read_unlock       = osd_object_read_unlock,
2884         .do_write_unlock      = osd_object_write_unlock,
2885         .do_write_locked      = osd_object_write_locked,
2886         .do_attr_get          = osd_attr_get,
2887         .do_declare_attr_set  = osd_declare_attr_set,
2888         .do_attr_set          = osd_attr_set,
2889         .do_ah_init           = osd_ah_init,
2890         .do_declare_create    = osd_declare_object_create,
2891         .do_create            = osd_object_ea_create,
2892         .do_declare_destroy   = osd_declare_object_destroy,
2893         .do_destroy           = osd_object_destroy,
2894         .do_index_try         = osd_index_try,
2895         .do_declare_ref_add   = osd_declare_object_ref_add,
2896         .do_ref_add           = osd_object_ref_add,
2897         .do_declare_ref_del   = osd_declare_object_ref_del,
2898         .do_ref_del           = osd_object_ref_del,
2899         .do_xattr_get         = osd_xattr_get,
2900         .do_declare_xattr_set = osd_declare_xattr_set,
2901         .do_xattr_set         = osd_xattr_set,
2902         .do_declare_xattr_del = osd_declare_xattr_del,
2903         .do_xattr_del         = osd_xattr_del,
2904         .do_xattr_list        = osd_xattr_list,
2905         .do_capa_get          = osd_capa_get,
2906         .do_object_sync       = osd_object_sync,
2907         .do_data_get          = osd_data_get,
2908 };
2909
2910 static const struct dt_object_operations osd_obj_otable_it_ops = {
2911         .do_attr_get    = osd_otable_it_attr_get,
2912         .do_index_try   = osd_index_try,
2913 };
2914
2915 static int osd_index_declare_iam_delete(const struct lu_env *env,
2916                                         struct dt_object *dt,
2917                                         const struct dt_key *key,
2918                                         struct thandle *handle)
2919 {
2920         struct osd_thandle    *oh;
2921
2922         oh = container_of0(handle, struct osd_thandle, ot_super);
2923         LASSERT(oh->ot_handle == NULL);
2924
2925         OSD_DECLARE_OP(oh, delete);
2926         oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
2927
2928         return 0;
2929 }
2930
2931 /**
2932  *      delete a (key, value) pair from index \a dt specified by \a key
2933  *
2934  *      \param  dt      osd index object
2935  *      \param  key     key for index
2936  *      \param  rec     record reference
2937  *      \param  handle  transaction handler
2938  *
2939  *      \retval  0  success
2940  *      \retval -ve   failure
2941  */
2942
2943 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
2944                                 const struct dt_key *key,
2945                                 struct thandle *handle,
2946                                 struct lustre_capa *capa)
2947 {
2948         struct osd_thread_info *oti = osd_oti_get(env);
2949         struct osd_object      *obj = osd_dt_obj(dt);
2950         struct osd_thandle     *oh;
2951         struct iam_path_descr  *ipd;
2952         struct iam_container   *bag = &obj->oo_dir->od_container;
2953         int                     rc;
2954
2955         ENTRY;
2956
2957         LINVRNT(osd_invariant(obj));
2958         LASSERT(dt_object_exists(dt));
2959         LASSERT(bag->ic_object == obj->oo_inode);
2960         LASSERT(handle != NULL);
2961
2962         if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
2963                 RETURN(-EACCES);
2964
2965         OSD_EXEC_OP(handle, delete);
2966
2967         ipd = osd_idx_ipd_get(env, bag);
2968         if (unlikely(ipd == NULL))
2969                 RETURN(-ENOMEM);
2970
2971         oh = container_of0(handle, struct osd_thandle, ot_super);
2972         LASSERT(oh->ot_handle != NULL);
2973         LASSERT(oh->ot_handle->h_transaction != NULL);
2974
2975         if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
2976                 /* swab quota uid/gid provided by caller */
2977                 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
2978                 key = (const struct dt_key *)&oti->oti_quota_id;
2979         }
2980
2981         rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
2982         osd_ipd_put(env, bag, ipd);
2983         LINVRNT(osd_invariant(obj));
2984         RETURN(rc);
2985 }
2986
2987 static int osd_index_declare_ea_delete(const struct lu_env *env,
2988                                        struct dt_object *dt,
2989                                        const struct dt_key *key,
2990                                        struct thandle *handle)
2991 {
2992         struct osd_thandle *oh;
2993         struct inode       *inode;
2994         int                 rc;
2995         ENTRY;
2996
2997         LASSERT(dt_object_exists(dt));
2998         LASSERT(handle != NULL);
2999
3000         oh = container_of0(handle, struct osd_thandle, ot_super);
3001         LASSERT(oh->ot_handle == NULL);
3002
3003         OSD_DECLARE_OP(oh, delete);
3004         oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3005
3006         inode = osd_dt_obj(dt)->oo_inode;
3007         LASSERT(inode);
3008
3009         rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
3010                                    true, true, NULL, false);
3011         RETURN(rc);
3012 }
3013
3014 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
3015                                           struct dt_rec *fid)
3016 {
3017         struct osd_fid_pack *rec;
3018         int                  rc = -ENODATA;
3019
3020         if (de->file_type & LDISKFS_DIRENT_LUFID) {
3021                 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
3022                 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
3023         }
3024         RETURN(rc);
3025 }
3026
3027 /**
3028  * Index delete function for interoperability mode (b11826).
3029  * It will remove the directory entry added by osd_index_ea_insert().
3030  * This entry is needed to maintain name->fid mapping.
3031  *
3032  * \param key,  key i.e. file entry to be deleted
3033  *
3034  * \retval   0, on success
3035  * \retval -ve, on error
3036  */
3037 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
3038                                const struct dt_key *key,
3039                                struct thandle *handle,
3040                                struct lustre_capa *capa)
3041 {
3042         struct osd_object          *obj    = osd_dt_obj(dt);
3043         struct inode               *dir    = obj->oo_inode;
3044         struct dentry              *dentry;
3045         struct osd_thandle         *oh;
3046         struct ldiskfs_dir_entry_2 *de;
3047         struct buffer_head         *bh;
3048         struct htree_lock          *hlock = NULL;
3049         int                         rc;
3050
3051         ENTRY;
3052
3053         LINVRNT(osd_invariant(obj));
3054         LASSERT(dt_object_exists(dt));
3055         LASSERT(handle != NULL);
3056
3057         OSD_EXEC_OP(handle, delete);
3058
3059         oh = container_of(handle, struct osd_thandle, ot_super);
3060         LASSERT(oh->ot_handle != NULL);
3061         LASSERT(oh->ot_handle->h_transaction != NULL);
3062
3063         if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
3064                 RETURN(-EACCES);
3065
3066         dentry = osd_child_dentry_get(env, obj,
3067                                       (char *)key, strlen((char *)key));
3068
3069         if (obj->oo_hl_head != NULL) {
3070                 hlock = osd_oti_get(env)->oti_hlock;
3071                 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
3072                                    dir, LDISKFS_HLOCK_DEL);
3073         } else {
3074                 cfs_down_write(&obj->oo_ext_idx_sem);
3075         }
3076
3077         bh = osd_ldiskfs_find_entry(dir, dentry, &de, hlock);
3078         if (bh) {
3079                 rc = ldiskfs_delete_entry(oh->ot_handle,
3080                                           dir, de, bh);
3081                 brelse(bh);
3082         } else {
3083                 rc = -ENOENT;
3084         }
3085         if (hlock != NULL)
3086                 ldiskfs_htree_unlock(hlock);
3087         else
3088                 cfs_up_write(&obj->oo_ext_idx_sem);
3089
3090         LASSERT(osd_invariant(obj));
3091         RETURN(rc);
3092 }
3093
3094 /**
3095  *      Lookup index for \a key and copy record to \a rec.
3096  *
3097  *      \param  dt      osd index object
3098  *      \param  key     key for index
3099  *      \param  rec     record reference
3100  *
3101  *      \retval  +ve  success : exact mach
3102  *      \retval  0    return record with key not greater than \a key
3103  *      \retval -ve   failure
3104  */
3105 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
3106                                 struct dt_rec *rec, const struct dt_key *key,
3107                                 struct lustre_capa *capa)
3108 {
3109         struct osd_object      *obj = osd_dt_obj(dt);
3110         struct iam_path_descr  *ipd;
3111         struct iam_container   *bag = &obj->oo_dir->od_container;
3112         struct osd_thread_info *oti = osd_oti_get(env);
3113         struct iam_iterator    *it = &oti->oti_idx_it;
3114         struct iam_rec         *iam_rec;
3115         int                     rc;
3116
3117         ENTRY;
3118
3119         LASSERT(osd_invariant(obj));
3120         LASSERT(dt_object_exists(dt));
3121         LASSERT(bag->ic_object == obj->oo_inode);
3122
3123         if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
3124                 RETURN(-EACCES);
3125
3126         ipd = osd_idx_ipd_get(env, bag);
3127         if (IS_ERR(ipd))
3128                 RETURN(-ENOMEM);
3129
3130         /* got ipd now we can start iterator. */
3131         iam_it_init(it, bag, 0, ipd);
3132
3133         if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3134                 /* swab quota uid/gid provided by caller */
3135                 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3136                 key = (const struct dt_key *)&oti->oti_quota_id;
3137         }
3138
3139         rc = iam_it_get(it, (struct iam_key *)key);
3140         if (rc >= 0) {
3141                 if (S_ISDIR(obj->oo_inode->i_mode))
3142                         iam_rec = (struct iam_rec *)oti->oti_ldp;
3143                 else
3144                         iam_rec = (struct iam_rec *) rec;
3145
3146                 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
3147
3148                 if (S_ISDIR(obj->oo_inode->i_mode))
3149                         osd_fid_unpack((struct lu_fid *) rec,
3150                                        (struct osd_fid_pack *)iam_rec);
3151                 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
3152                         osd_quota_unpack(obj, rec);
3153         }
3154
3155         iam_it_put(it);
3156         iam_it_fini(it);
3157         osd_ipd_put(env, bag, ipd);
3158
3159         LINVRNT(osd_invariant(obj));
3160
3161         RETURN(rc);
3162 }
3163
3164 static int osd_index_declare_iam_insert(const struct lu_env *env,
3165                                         struct dt_object *dt,
3166                                         const struct dt_rec *rec,
3167                                         const struct dt_key *key,
3168                                         struct thandle *handle)
3169 {
3170         struct osd_thandle *oh;
3171
3172         LASSERT(dt_object_exists(dt));
3173         LASSERT(handle != NULL);
3174
3175         oh = container_of0(handle, struct osd_thandle, ot_super);
3176         LASSERT(oh->ot_handle == NULL);
3177
3178         OSD_DECLARE_OP(oh, insert);
3179         oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
3180
3181         return 0;
3182 }
3183
3184 /**
3185  *      Inserts (key, value) pair in \a dt index object.
3186  *
3187  *      \param  dt      osd index object
3188  *      \param  key     key for index
3189  *      \param  rec     record reference
3190  *      \param  th      transaction handler
3191  *
3192  *      \retval  0  success
3193  *      \retval -ve failure
3194  */
3195 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
3196                                 const struct dt_rec *rec,
3197                                 const struct dt_key *key, struct thandle *th,
3198                                 struct lustre_capa *capa, int ignore_quota)
3199 {
3200         struct osd_object     *obj = osd_dt_obj(dt);
3201         struct iam_path_descr *ipd;
3202         struct osd_thandle    *oh;
3203         struct iam_container  *bag = &obj->oo_dir->od_container;
3204 #ifdef HAVE_QUOTA_SUPPORT
3205         cfs_cap_t              save = cfs_curproc_cap_pack();
3206 #endif
3207         struct osd_thread_info *oti = osd_oti_get(env);
3208         struct iam_rec         *iam_rec;
3209         int                     rc;
3210
3211         ENTRY;
3212
3213         LINVRNT(osd_invariant(obj));
3214         LASSERT(dt_object_exists(dt));
3215         LASSERT(bag->ic_object == obj->oo_inode);
3216         LASSERT(th != NULL);
3217
3218         if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
3219                 RETURN(-EACCES);
3220
3221         OSD_EXEC_OP(th, insert);
3222
3223         ipd = osd_idx_ipd_get(env, bag);
3224         if (unlikely(ipd == NULL))
3225                 RETURN(-ENOMEM);
3226
3227         oh = container_of0(th, struct osd_thandle, ot_super);
3228         LASSERT(oh->ot_handle != NULL);
3229         LASSERT(oh->ot_handle->h_transaction != NULL);
3230 #ifdef HAVE_QUOTA_SUPPORT
3231         if (ignore_quota)
3232                 cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
3233         else
3234                 cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
3235 #endif
3236         if (S_ISDIR(obj->oo_inode->i_mode)) {
3237                 iam_rec = (struct iam_rec *)oti->oti_ldp;
3238                 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
3239         } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {