4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2013, Intel Corporation.
29 * lustre/lod/lod_object.c
31 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
34 #define DEBUG_SUBSYSTEM S_MDS
37 #include <obd_class.h>
38 #include <lustre_ver.h>
39 #include <obd_support.h>
40 #include <lprocfs_status.h>
42 #include <lustre_fid.h>
43 #include <lustre_param.h>
44 #include <lustre_fid.h>
45 #include <lustre_lmv.h>
47 #include <md_object.h>
49 #include "lod_internal.h"
51 static const char dot[] = ".";
52 static const char dotdot[] = "..";
54 extern struct kmem_cache *lod_object_kmem;
55 static const struct dt_body_operations lod_body_lnk_ops;
57 static int lod_index_lookup(const struct lu_env *env, struct dt_object *dt,
58 struct dt_rec *rec, const struct dt_key *key,
59 struct lustre_capa *capa)
61 struct dt_object *next = dt_object_child(dt);
62 return next->do_index_ops->dio_lookup(env, next, rec, key, capa);
65 static int lod_declare_index_insert(const struct lu_env *env,
67 const struct dt_rec *rec,
68 const struct dt_key *key,
69 struct thandle *handle)
71 return dt_declare_insert(env, dt_object_child(dt), rec, key, handle);
74 static int lod_index_insert(const struct lu_env *env,
76 const struct dt_rec *rec,
77 const struct dt_key *key,
79 struct lustre_capa *capa,
82 return dt_insert(env, dt_object_child(dt), rec, key, th, capa, ign);
85 static int lod_declare_index_delete(const struct lu_env *env,
87 const struct dt_key *key,
90 return dt_declare_delete(env, dt_object_child(dt), key, th);
93 static int lod_index_delete(const struct lu_env *env,
95 const struct dt_key *key,
97 struct lustre_capa *capa)
99 return dt_delete(env, dt_object_child(dt), key, th, capa);
102 static struct dt_it *lod_it_init(const struct lu_env *env,
103 struct dt_object *dt, __u32 attr,
104 struct lustre_capa *capa)
106 struct dt_object *next = dt_object_child(dt);
107 struct lod_it *it = &lod_env_info(env)->lti_it;
108 struct dt_it *it_next;
111 it_next = next->do_index_ops->dio_it.init(env, next, attr, capa);
115 /* currently we do not use more than one iterator per thread
116 * so we store it in thread info. if at some point we need
117 * more active iterators in a single thread, we can allocate
119 LASSERT(it->lit_obj == NULL);
121 it->lit_it = it_next;
124 return (struct dt_it *)it;
127 #define LOD_CHECK_IT(env, it) \
129 LASSERT((it)->lit_obj != NULL); \
130 LASSERT((it)->lit_it != NULL); \
133 void lod_it_fini(const struct lu_env *env, struct dt_it *di)
135 struct lod_it *it = (struct lod_it *)di;
137 LOD_CHECK_IT(env, it);
138 it->lit_obj->do_index_ops->dio_it.fini(env, it->lit_it);
140 /* the iterator not in use any more */
145 int lod_it_get(const struct lu_env *env, struct dt_it *di,
146 const struct dt_key *key)
148 const struct lod_it *it = (const struct lod_it *)di;
150 LOD_CHECK_IT(env, it);
151 return it->lit_obj->do_index_ops->dio_it.get(env, it->lit_it, key);
154 void lod_it_put(const struct lu_env *env, struct dt_it *di)
156 struct lod_it *it = (struct lod_it *)di;
158 LOD_CHECK_IT(env, it);
159 return it->lit_obj->do_index_ops->dio_it.put(env, it->lit_it);
162 int lod_it_next(const struct lu_env *env, struct dt_it *di)
164 struct lod_it *it = (struct lod_it *)di;
166 LOD_CHECK_IT(env, it);
167 return it->lit_obj->do_index_ops->dio_it.next(env, it->lit_it);
170 struct dt_key *lod_it_key(const struct lu_env *env, const struct dt_it *di)
172 const struct lod_it *it = (const struct lod_it *)di;
174 LOD_CHECK_IT(env, it);
175 return it->lit_obj->do_index_ops->dio_it.key(env, it->lit_it);
178 int lod_it_key_size(const struct lu_env *env, const struct dt_it *di)
180 struct lod_it *it = (struct lod_it *)di;
182 LOD_CHECK_IT(env, it);
183 return it->lit_obj->do_index_ops->dio_it.key_size(env, it->lit_it);
186 int lod_it_rec(const struct lu_env *env, const struct dt_it *di,
187 struct dt_rec *rec, __u32 attr)
189 const struct lod_it *it = (const struct lod_it *)di;
191 LOD_CHECK_IT(env, it);
192 return it->lit_obj->do_index_ops->dio_it.rec(env, it->lit_it, rec, attr);
195 __u64 lod_it_store(const struct lu_env *env, const struct dt_it *di)
197 const struct lod_it *it = (const struct lod_it *)di;
199 LOD_CHECK_IT(env, it);
200 return it->lit_obj->do_index_ops->dio_it.store(env, it->lit_it);
203 int lod_it_load(const struct lu_env *env, const struct dt_it *di, __u64 hash)
205 const struct lod_it *it = (const struct lod_it *)di;
207 LOD_CHECK_IT(env, it);
208 return it->lit_obj->do_index_ops->dio_it.load(env, it->lit_it, hash);
211 int lod_it_key_rec(const struct lu_env *env, const struct dt_it *di,
214 const struct lod_it *it = (const struct lod_it *)di;
216 LOD_CHECK_IT(env, it);
217 return it->lit_obj->do_index_ops->dio_it.key_rec(env, it->lit_it, key_rec);
220 static struct dt_index_operations lod_index_ops = {
221 .dio_lookup = lod_index_lookup,
222 .dio_declare_insert = lod_declare_index_insert,
223 .dio_insert = lod_index_insert,
224 .dio_declare_delete = lod_declare_index_delete,
225 .dio_delete = lod_index_delete,
233 .key_size = lod_it_key_size,
235 .store = lod_it_store,
237 .key_rec = lod_it_key_rec,
241 static void lod_object_read_lock(const struct lu_env *env,
242 struct dt_object *dt, unsigned role)
244 dt_read_lock(env, dt_object_child(dt), role);
247 static void lod_object_write_lock(const struct lu_env *env,
248 struct dt_object *dt, unsigned role)
250 dt_write_lock(env, dt_object_child(dt), role);
253 static void lod_object_read_unlock(const struct lu_env *env,
254 struct dt_object *dt)
256 dt_read_unlock(env, dt_object_child(dt));
259 static void lod_object_write_unlock(const struct lu_env *env,
260 struct dt_object *dt)
262 dt_write_unlock(env, dt_object_child(dt));
265 static int lod_object_write_locked(const struct lu_env *env,
266 struct dt_object *dt)
268 return dt_write_locked(env, dt_object_child(dt));
271 static int lod_attr_get(const struct lu_env *env,
272 struct dt_object *dt,
273 struct lu_attr *attr,
274 struct lustre_capa *capa)
276 return dt_attr_get(env, dt_object_child(dt), attr, capa);
279 static int lod_declare_attr_set(const struct lu_env *env,
280 struct dt_object *dt,
281 const struct lu_attr *attr,
282 struct thandle *handle)
284 struct dt_object *next = dt_object_child(dt);
285 struct lod_object *lo = lod_dt_obj(dt);
290 * declare setattr on the local object
292 rc = dt_declare_attr_set(env, next, attr, handle);
296 /* osp_declare_attr_set() ignores all attributes other than
297 * UID, GID, and size, and osp_attr_set() ignores all but UID
298 * and GID. Declaration of size attr setting happens through
299 * lod_declare_init_size(), and not through this function.
300 * Therefore we need not load striping unless ownership is
301 * changing. This should save memory and (we hope) speed up
303 if (!S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
304 if (!(attr->la_valid & (LA_UID | LA_GID)))
307 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_OWNER))
310 if (!(attr->la_valid & (LA_UID | LA_GID | LA_MODE |
311 LA_ATIME | LA_MTIME | LA_CTIME)))
315 * load striping information, notice we don't do this when object
316 * is being initialized as we don't need this information till
317 * few specific cases like destroy, chown
319 rc = lod_load_striping(env, lo);
323 if (lo->ldo_stripenr == 0)
326 if (!(attr->la_valid & ~(LA_ATIME | LA_MTIME | LA_CTIME))) {
327 struct lu_attr *la = &lod_env_info(env)->lti_attr;
328 bool setattr_time = false;
330 rc = dt_attr_get(env, dt_object_child(dt), la,
335 /* If it will only setattr time, it will only set
336 * time < current_time */
337 if ((attr->la_valid & LA_ATIME &&
338 attr->la_atime < la->la_atime) ||
339 (attr->la_valid & LA_CTIME &&
340 attr->la_ctime < la->la_ctime) ||
341 (attr->la_valid & LA_MTIME &&
342 attr->la_mtime < la->la_mtime))
349 * if object is striped declare changes on the stripes
351 LASSERT(lo->ldo_stripe);
352 for (i = 0; i < lo->ldo_stripenr; i++) {
353 LASSERT(lo->ldo_stripe[i]);
355 rc = dt_declare_attr_set(env, lo->ldo_stripe[i], attr, handle);
357 CERROR("failed declaration: %d\n", rc);
362 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
363 dt_object_exists(next) != 0 &&
364 dt_object_remote(next) == 0)
365 dt_declare_xattr_del(env, next, XATTR_NAME_LOV, handle);
367 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CHANGE_STRIPE) &&
368 dt_object_exists(next) &&
369 dt_object_remote(next) == 0 && S_ISREG(attr->la_mode)) {
370 struct lod_thread_info *info = lod_env_info(env);
371 struct lu_buf *buf = &info->lti_buf;
373 buf->lb_buf = info->lti_ea_store;
374 buf->lb_len = info->lti_ea_store_size;
375 dt_declare_xattr_set(env, next, buf, XATTR_NAME_LOV,
376 LU_XATTR_REPLACE, handle);
382 static int lod_attr_set(const struct lu_env *env,
383 struct dt_object *dt,
384 const struct lu_attr *attr,
385 struct thandle *handle,
386 struct lustre_capa *capa)
388 struct dt_object *next = dt_object_child(dt);
389 struct lod_object *lo = lod_dt_obj(dt);
394 * apply changes to the local object
396 rc = dt_attr_set(env, next, attr, handle, capa);
400 if (!S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
401 if (!(attr->la_valid & (LA_UID | LA_GID)))
404 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_OWNER))
407 if (!(attr->la_valid & (LA_UID | LA_GID | LA_MODE |
408 LA_ATIME | LA_MTIME | LA_CTIME)))
412 if (lo->ldo_stripenr == 0)
415 if (!(attr->la_valid & ~(LA_ATIME | LA_MTIME | LA_CTIME))) {
416 struct lu_attr *la = &lod_env_info(env)->lti_attr;
417 bool setattr_time = false;
419 rc = dt_attr_get(env, dt_object_child(dt), la,
424 /* If it will only setattr time, it will only set
425 * time < current_time */
426 if ((attr->la_valid & LA_ATIME &&
427 attr->la_atime < la->la_atime) ||
428 (attr->la_valid & LA_CTIME &&
429 attr->la_ctime < la->la_ctime) ||
430 (attr->la_valid & LA_MTIME &&
431 attr->la_mtime < la->la_mtime))
439 * if object is striped, apply changes to all the stripes
441 LASSERT(lo->ldo_stripe);
442 for (i = 0; i < lo->ldo_stripenr; i++) {
443 LASSERT(lo->ldo_stripe[i]);
444 rc = dt_attr_set(env, lo->ldo_stripe[i], attr, handle, capa);
446 CERROR("failed declaration: %d\n", rc);
451 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
452 dt_object_exists(next) != 0 &&
453 dt_object_remote(next) == 0)
454 dt_xattr_del(env, next, XATTR_NAME_LOV, handle, BYPASS_CAPA);
456 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CHANGE_STRIPE) &&
457 dt_object_exists(next) &&
458 dt_object_remote(next) == 0 && S_ISREG(attr->la_mode)) {
459 struct lod_thread_info *info = lod_env_info(env);
460 struct lu_buf *buf = &info->lti_buf;
461 struct ost_id *oi = &info->lti_ostid;
462 struct lu_fid *fid = &info->lti_fid;
463 struct lov_mds_md_v1 *lmm;
464 struct lov_ost_data_v1 *objs;
468 rc1 = lod_get_lov_ea(env, lo);
472 buf->lb_buf = info->lti_ea_store;
473 buf->lb_len = info->lti_ea_store_size;
474 lmm = info->lti_ea_store;
475 magic = le32_to_cpu(lmm->lmm_magic);
476 if (magic == LOV_MAGIC_V1)
477 objs = &(lmm->lmm_objects[0]);
479 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
480 ostid_le_to_cpu(&objs->l_ost_oi, oi);
481 ostid_to_fid(fid, oi, le32_to_cpu(objs->l_ost_idx));
483 fid_to_ostid(fid, oi);
484 ostid_cpu_to_le(oi, &objs->l_ost_oi);
485 dt_xattr_set(env, next, buf, XATTR_NAME_LOV,
486 LU_XATTR_REPLACE, handle, BYPASS_CAPA);
492 static int lod_xattr_get(const struct lu_env *env, struct dt_object *dt,
493 struct lu_buf *buf, const char *name,
494 struct lustre_capa *capa)
496 struct lod_thread_info *info = lod_env_info(env);
497 struct lod_device *dev = lu2lod_dev(dt->do_lu.lo_dev);
501 rc = dt_xattr_get(env, dt_object_child(dt), buf, name, capa);
502 if (rc != -ENODATA || !S_ISDIR(dt->do_lu.lo_header->loh_attr & S_IFMT))
506 * lod returns default striping on the real root of the device
507 * this is like the root stores default striping for the whole
508 * filesystem. historically we've been using a different approach
509 * and store it in the config.
511 dt_root_get(env, dev->lod_child, &info->lti_fid);
512 is_root = lu_fid_eq(&info->lti_fid, lu_object_fid(&dt->do_lu));
514 if (is_root && strcmp(XATTR_NAME_LOV, name) == 0) {
515 struct lov_user_md *lum = buf->lb_buf;
516 struct lov_desc *desc = &dev->lod_desc;
518 if (buf->lb_buf == NULL) {
520 } else if (buf->lb_len >= sizeof(*lum)) {
521 lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
522 lmm_oi_set_seq(&lum->lmm_oi, FID_SEQ_LOV_DEFAULT);
523 lmm_oi_set_id(&lum->lmm_oi, 0);
524 lmm_oi_cpu_to_le(&lum->lmm_oi, &lum->lmm_oi);
525 lum->lmm_pattern = cpu_to_le32(desc->ld_pattern);
526 lum->lmm_stripe_size = cpu_to_le32(
527 desc->ld_default_stripe_size);
528 lum->lmm_stripe_count = cpu_to_le16(
529 desc->ld_default_stripe_count);
530 lum->lmm_stripe_offset = cpu_to_le16(
531 desc->ld_default_stripe_offset);
541 static int lod_verify_md_striping(struct lod_device *lod,
542 const struct lmv_user_md_v1 *lum)
547 if (unlikely(le32_to_cpu(lum->lum_magic) != LMV_USER_MAGIC))
548 GOTO(out, rc = -EINVAL);
550 if (unlikely(le32_to_cpu(lum->lum_stripe_count) == 0))
551 GOTO(out, rc = -EINVAL);
553 if (unlikely(le32_to_cpu(lum->lum_stripe_count) >
554 lod->lod_remote_mdt_count + 1))
555 GOTO(out, rc = -EINVAL);
558 CERROR("%s: invalid lmv_user_md: magic = %x, "
559 "stripe_offset = %d, stripe_count = %u: rc = %d\n",
560 lod2obd(lod)->obd_name, le32_to_cpu(lum->lum_magic),
561 (int)le32_to_cpu(lum->lum_stripe_offset),
562 le32_to_cpu(lum->lum_stripe_count), rc);
566 int lod_prep_lmv_md(const struct lu_env *env, struct dt_object *dt,
567 struct lu_buf *lmv_buf)
569 struct lod_thread_info *info = lod_env_info(env);
570 struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
571 struct lod_object *lo = lod_dt_obj(dt);
572 struct lmv_mds_md_v1 *lmm1;
575 int type = LU_SEQ_RANGE_ANY;
581 LASSERT(lo->ldo_dir_striped != 0);
582 LASSERT(lo->ldo_stripenr > 0);
583 stripe_count = lo->ldo_stripenr + 1;
584 lmm_size = lmv_mds_md_size(stripe_count, LMV_MAGIC);
585 if (info->lti_ea_store_size < lmm_size) {
586 rc = lod_ea_store_resize(info, lmm_size);
591 lmm1 = (struct lmv_mds_md_v1 *)info->lti_ea_store;
592 lmm1->lmv_magic = cpu_to_le32(LMV_MAGIC);
593 lmm1->lmv_stripe_count = cpu_to_le32(stripe_count);
594 lmm1->lmv_hash_type = cpu_to_le32(lo->ldo_dir_hash_type);
595 rc = lod_fld_lookup(env, lod, lu_object_fid(&dt->do_lu),
600 lmm1->lmv_master_mdt_index = cpu_to_le32(mdtidx);
601 fid_cpu_to_le(&lmm1->lmv_stripe_fids[0], lu_object_fid(&dt->do_lu));
602 for (i = 0; i < lo->ldo_stripenr; i++) {
603 struct dt_object *dto;
605 dto = lo->ldo_stripe[i];
606 LASSERT(dto != NULL);
607 fid_cpu_to_le(&lmm1->lmv_stripe_fids[i + 1],
608 lu_object_fid(&dto->do_lu));
611 lmv_buf->lb_buf = info->lti_ea_store;
612 lmv_buf->lb_len = lmm_size;
613 lo->ldo_dir_striping_cached = 1;
618 int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
619 const struct lu_buf *buf)
621 struct lod_thread_info *info = lod_env_info(env);
622 struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
623 struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
624 struct dt_object **stripe;
625 union lmv_mds_md *lmm = buf->lb_buf;
626 struct lmv_mds_md_v1 *lmv1 = &lmm->lmv_md_v1;
627 struct lu_fid *fid = &info->lti_fid;
632 if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_MIGRATE)
635 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
638 if (le32_to_cpu(lmv1->lmv_stripe_count) <= 1)
641 fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[0]);
642 /* Do not load striping information for slave inode */
643 if (!lu_fid_eq(fid, lu_object_fid(&lo->ldo_obj.do_lu))) {
644 lo->ldo_dir_slave_stripe = 1;
648 LASSERT(lo->ldo_stripe == NULL);
649 OBD_ALLOC(stripe, sizeof(stripe[0]) *
650 (le32_to_cpu(lmv1->lmv_stripe_count) - 1));
654 /* skip master stripe */
655 for (i = 1; i < le32_to_cpu(lmv1->lmv_stripe_count); i++) {
656 struct lod_tgt_desc *tgt;
658 int type = LU_SEQ_RANGE_ANY;
659 struct dt_object *dto;
661 fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[i]);
662 rc = lod_fld_lookup(env, lod, fid, &idx, &type);
666 tgt = LTD_TGT(ltd, idx);
668 GOTO(out, rc = -ESTALE);
670 dto = dt_locate_at(env, tgt->ltd_tgt, fid,
671 lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
674 GOTO(out, rc = PTR_ERR(dto));
679 lo->ldo_stripe = stripe;
680 lo->ldo_stripenr = le32_to_cpu(lmv1->lmv_stripe_count) - 1;
681 lo->ldo_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count) - 1;
683 lod_object_free_striping(env, lo);
688 static int lod_prep_md_striped_create(const struct lu_env *env,
689 struct dt_object *dt,
690 struct lu_attr *attr,
691 const struct lmv_user_md_v1 *lum,
694 struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
695 struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
696 struct lod_object *lo = lod_dt_obj(dt);
697 struct dt_object **stripe;
698 struct lu_buf lmv_buf;
706 /* The lum has been verifed in lod_verify_md_striping */
707 LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC);
708 LASSERT(le32_to_cpu(lum->lum_stripe_count) > 0);
710 /* Do not need allocated master stripe */
711 stripe_count = le32_to_cpu(lum->lum_stripe_count);
712 OBD_ALLOC(stripe, sizeof(stripe[0]) * (stripe_count - 1));
716 OBD_ALLOC(idx_array, sizeof(idx_array[0]) * stripe_count);
717 if (idx_array == NULL)
718 GOTO(out_free, rc = -ENOMEM);
720 idx_array[0] = le32_to_cpu(lum->lum_stripe_offset);
721 for (i = 1; i < stripe_count; i++) {
722 struct lod_tgt_desc *tgt;
723 struct dt_object *dto;
726 struct lu_object_conf conf = { 0 };
728 idx = (idx_array[i - 1] + 1) % (lod->lod_remote_mdt_count + 1);
730 for (j = 0; j < lod->lod_remote_mdt_count;
731 j++, idx = (idx + 1) % (lod->lod_remote_mdt_count + 1)) {
732 bool already_allocated = false;
735 CDEBUG(D_INFO, "try idx %d, mdt cnt %d,"
736 " allocated %d, last allocated %d\n", idx,
737 lod->lod_remote_mdt_count, i, idx_array[i - 1]);
739 /* Find next avaible target */
740 if (!cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx))
743 /* check whether the idx already exists
744 * in current allocated array */
745 for (k = 0; k < i; k++) {
746 if (idx_array[k] == idx) {
747 already_allocated = true;
752 if (already_allocated)
758 /* Can not allocate more stripes */
759 if (j == lod->lod_remote_mdt_count) {
760 CDEBUG(D_INFO, "%s: require stripes %d only get %d\n",
761 lod2obd(lod)->obd_name, stripe_count, i - 1);
765 CDEBUG(D_INFO, "idx %d, mdt cnt %d,"
766 " allocated %d, last allocated %d\n", idx,
767 lod->lod_remote_mdt_count, i, idx_array[i - 1]);
769 tgt = LTD_TGT(ltd, idx);
770 LASSERT(tgt != NULL);
772 rc = obd_fid_alloc(tgt->ltd_exp, &fid, NULL);
777 conf.loc_flags = LOC_F_NEW;
778 dto = dt_locate_at(env, tgt->ltd_tgt, &fid,
779 dt->do_lu.lo_dev->ld_site->ls_top_dev, &conf);
781 GOTO(out_put, rc = PTR_ERR(dto));
786 lo->ldo_dir_striped = 1;
787 lo->ldo_stripe = stripe;
788 lo->ldo_stripenr = i - 1;
789 lo->ldo_stripes_allocated = stripe_count - 1;
791 if (lo->ldo_stripenr == 0)
792 GOTO(out_put, rc = -ENOSPC);
794 rc = lod_prep_lmv_md(env, dt, &lmv_buf);
798 for (i = 0; i < lo->ldo_stripenr; i++) {
799 struct dt_object *dto;
802 /* only create slave striped object */
803 rc = dt_declare_create(env, dto, attr, NULL, NULL, th);
807 if (!dt_try_as_dir(env, dto))
808 GOTO(out_put, rc = -EINVAL);
810 rc = dt_declare_insert(env, dto,
811 (const struct dt_rec *)lu_object_fid(&dto->do_lu),
812 (const struct dt_key *)dot, th);
816 /* master stripe FID will be put to .. */
817 rc = dt_declare_insert(env, dto,
818 (const struct dt_rec *)lu_object_fid(&dt->do_lu),
819 (const struct dt_key *)dotdot, th);
823 /* probably nothing to inherite */
824 if (lo->ldo_striping_cached &&
825 !LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
826 lo->ldo_def_stripenr,
827 lo->ldo_def_stripe_offset)) {
828 struct lod_thread_info *info;
829 struct lov_user_md_v3 *v3;
831 /* sigh, lti_ea_store has been used for lmv_buf,
832 * so we have to allocate buffer for default
836 GOTO(out_put, rc = -ENOMEM);
838 memset(v3, 0, sizeof(*v3));
839 v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
840 v3->lmm_stripe_count =
841 cpu_to_le32(lo->ldo_def_stripenr);
842 v3->lmm_stripe_offset =
843 cpu_to_le32(lo->ldo_def_stripe_offset);
844 v3->lmm_stripe_size =
845 cpu_to_le32(lo->ldo_def_stripe_size);
847 strncpy(v3->lmm_pool_name, lo->ldo_pool,
850 info = lod_env_info(env);
851 info->lti_buf.lb_buf = v3;
852 info->lti_buf.lb_len = sizeof(*v3);
853 rc = dt_declare_xattr_set(env, dto,
861 rc = dt_declare_xattr_set(env, dto, &lmv_buf, XATTR_NAME_LMV, 0,
867 rc = dt_declare_xattr_set(env, dt_object_child(dt), &lmv_buf,
868 XATTR_NAME_LMV, 0, th);
874 for (i = 0; i < stripe_count - 1; i++)
875 if (stripe[i] != NULL)
876 lu_object_put(env, &stripe[i]->do_lu);
877 OBD_FREE(stripe, sizeof(stripe[0]) * (stripe_count - 1));
881 if (idx_array != NULL)
882 OBD_FREE(idx_array, sizeof(idx_array[0]) * stripe_count);
888 * Declare create striped md object.
890 static int lod_declare_xattr_set_lmv(const struct lu_env *env,
891 struct dt_object *dt,
892 struct lu_attr *attr,
893 const struct lu_buf *lum_buf,
896 struct lod_object *lo = lod_dt_obj(dt);
897 struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
898 struct lmv_user_md_v1 *lum;
902 lum = lum_buf->lb_buf;
903 LASSERT(lum != NULL);
905 CDEBUG(D_INFO, "lum magic = %x count = %u offset = %d\n",
906 le32_to_cpu(lum->lum_magic), le32_to_cpu(lum->lum_stripe_count),
907 (int)le32_to_cpu(lum->lum_stripe_offset));
909 if (le32_to_cpu(lum->lum_stripe_count) <= 1)
912 rc = lod_verify_md_striping(lod, lum);
916 /* prepare dir striped objects */
917 rc = lod_prep_md_striped_create(env, dt, attr, lum, th);
919 /* failed to create striping, let's reset
920 * config so that others don't get confused */
921 lod_object_free_striping(env, lo);
929 * LOV xattr is a storage for striping, and LOD owns this xattr.
930 * but LOD allows others to control striping to some extent
932 * - to set new defined striping
933 * - to set new semi-defined striping
934 * - number of stripes is defined
935 * - number of stripes + osts are defined
938 static int lod_declare_xattr_set(const struct lu_env *env,
939 struct dt_object *dt,
940 const struct lu_buf *buf,
941 const char *name, int fl,
944 struct dt_object *next = dt_object_child(dt);
945 struct lu_attr *attr = &lod_env_info(env)->lti_attr;
951 * allow to declare predefined striping on a new (!mode) object
952 * which is supposed to be replay of regular file creation
953 * (when LOV setting is declared)
954 * LU_XATTR_REPLACE is set to indicate a layout swap
956 mode = dt->do_lu.lo_header->loh_attr & S_IFMT;
957 if ((S_ISREG(mode) || mode == 0) && strcmp(name, XATTR_NAME_LOV) == 0 &&
958 !(fl & LU_XATTR_REPLACE)) {
960 * this is a request to manipulate object's striping
962 if (dt_object_exists(dt)) {
963 rc = dt_attr_get(env, next, attr, BYPASS_CAPA);
967 memset(attr, 0, sizeof(*attr));
968 attr->la_valid = LA_TYPE | LA_MODE;
969 attr->la_mode = S_IFREG;
971 rc = lod_declare_striped_object(env, dt, attr, buf, th);
972 } else if (S_ISDIR(mode)) {
973 struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
974 struct lod_object *lo = lod_dt_obj(dt);
977 if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
978 struct lmv_user_md_v1 *lum;
980 LASSERT(buf != NULL && buf->lb_buf != NULL);
982 rc = lod_verify_md_striping(d, lum);
987 rc = dt_declare_xattr_set(env, next, buf, name, fl, th);
991 /* set xattr to each stripes, if needed */
992 rc = lod_load_striping(env, lo);
996 if (lo->ldo_stripenr == 0)
999 for (i = 0; i < lo->ldo_stripenr; i++) {
1000 LASSERT(lo->ldo_stripe[i]);
1001 rc = dt_declare_xattr_set(env, lo->ldo_stripe[i], buf,
1007 rc = dt_declare_xattr_set(env, next, buf, name, fl, th);
1013 static void lod_lov_stripe_cache_clear(struct lod_object *lo)
1015 lo->ldo_striping_cached = 0;
1016 lo->ldo_def_striping_set = 0;
1017 lod_object_set_pool(lo, NULL);
1018 lo->ldo_def_stripe_size = 0;
1019 lo->ldo_def_stripenr = 0;
1022 static int lod_xattr_set_lov_on_dir(const struct lu_env *env,
1023 struct dt_object *dt,
1024 const struct lu_buf *buf,
1025 const char *name, int fl,
1027 struct lustre_capa *capa)
1029 struct lod_device *d = lu2lod_dev(dt->do_lu.lo_dev);
1030 struct dt_object *next = dt_object_child(dt);
1031 struct lod_object *l = lod_dt_obj(dt);
1032 struct lov_user_md_v1 *lum;
1033 struct lov_user_md_v3 *v3 = NULL;
1037 /* If it is striped dir, we should clear the stripe cache for
1038 * slave stripe as well, but there are no effective way to
1039 * notify the LOD on the slave MDT, so we do not cache stripe
1040 * information for slave stripe for now. XXX*/
1041 lod_lov_stripe_cache_clear(l);
1042 LASSERT(buf != NULL && buf->lb_buf != NULL);
1045 rc = lod_verify_striping(d, buf, 0);
1049 if (lum->lmm_magic == LOV_USER_MAGIC_V3)
1052 /* if { size, offset, count } = { 0, -1, 0 } and no pool
1053 * (i.e. all default values specified) then delete default
1054 * striping from dir. */
1056 "set default striping: sz %u # %u offset %d %s %s\n",
1057 (unsigned)lum->lmm_stripe_size,
1058 (unsigned)lum->lmm_stripe_count,
1059 (int)lum->lmm_stripe_offset,
1060 v3 ? "from" : "", v3 ? v3->lmm_pool_name : "");
1062 if (LOVEA_DELETE_VALUES((lum->lmm_stripe_size),
1063 (lum->lmm_stripe_count),
1064 (lum->lmm_stripe_offset)) &&
1065 lum->lmm_magic == LOV_USER_MAGIC_V1) {
1066 rc = dt_xattr_del(env, next, name, th, capa);
1070 rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
1076 static int lod_xattr_set_default_lmv_on_dir(const struct lu_env *env,
1077 struct dt_object *dt,
1078 const struct lu_buf *buf,
1079 const char *name, int fl,
1081 struct lustre_capa *capa)
1083 struct dt_object *next = dt_object_child(dt);
1084 struct lod_object *l = lod_dt_obj(dt);
1085 struct lmv_user_md_v1 *lum;
1089 LASSERT(buf != NULL && buf->lb_buf != NULL);
1092 CDEBUG(D_OTHER, "set default stripe_count # %u stripe_offset %d\n",
1093 le32_to_cpu(lum->lum_stripe_count),
1094 (int)le32_to_cpu(lum->lum_stripe_offset));
1096 if (LMVEA_DELETE_VALUES((le32_to_cpu(lum->lum_stripe_count)),
1097 le32_to_cpu(lum->lum_stripe_offset)) &&
1098 le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC) {
1099 rc = dt_xattr_del(env, next, name, th, capa);
1103 rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
1107 /* Update default stripe cache */
1108 if (l->ldo_dir_stripe == NULL) {
1109 OBD_ALLOC_PTR(l->ldo_dir_stripe);
1110 if (l->ldo_dir_stripe == NULL)
1114 l->ldo_dir_striping_cached = 0;
1115 l->ldo_dir_def_striping_set = 1;
1116 l->ldo_dir_def_stripenr =
1117 le32_to_cpu(lum->lum_stripe_count) - 1;
1123 static int lod_xattr_set_lmv(const struct lu_env *env, struct dt_object *dt,
1124 const struct lu_buf *buf, const char *name,
1125 int fl, struct thandle *th,
1126 struct lustre_capa *capa)
1128 struct lod_object *lo = lod_dt_obj(dt);
1129 struct lu_buf lmv_buf;
1134 if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
1137 /* The stripes are supposed to be allocated in declare phase,
1138 * if there are no stripes being allocated, it will skip */
1139 if (lo->ldo_stripenr == 0)
1142 rc = lod_prep_lmv_md(env, dt, &lmv_buf);
1146 for (i = 0; i < lo->ldo_stripenr; i++) {
1147 struct dt_object *dto;
1148 struct lu_attr *attr = &lod_env_info(env)->lti_attr;
1150 dto = lo->ldo_stripe[i];
1151 memset(attr, 0, sizeof(*attr));
1152 attr->la_valid = LA_TYPE | LA_MODE;
1153 attr->la_mode = S_IFDIR;
1154 rc = dt_create(env, dto, attr, NULL, NULL, th);
1158 rc = dt_insert(env, dto,
1159 (const struct dt_rec *)lu_object_fid(&dto->do_lu),
1160 (const struct dt_key *)dot, th, capa, 0);
1164 rc = dt_insert(env, dto,
1165 (struct dt_rec *)lu_object_fid(&dt->do_lu),
1166 (const struct dt_key *)dotdot, th, capa, 0);
1170 if (lo->ldo_striping_cached &&
1171 !LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
1172 lo->ldo_def_stripenr,
1173 lo->ldo_def_stripe_offset)) {
1174 struct lod_thread_info *info;
1175 struct lov_user_md_v3 *v3;
1177 /* sigh, lti_ea_store has been used for lmv_buf,
1178 * so we have to allocate buffer for default
1184 memset(v3, 0, sizeof(*v3));
1185 v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
1186 v3->lmm_stripe_count =
1187 cpu_to_le32(lo->ldo_def_stripenr);
1188 v3->lmm_stripe_offset =
1189 cpu_to_le32(lo->ldo_def_stripe_offset);
1190 v3->lmm_stripe_size =
1191 cpu_to_le32(lo->ldo_def_stripe_size);
1193 strncpy(v3->lmm_pool_name, lo->ldo_pool,
1196 info = lod_env_info(env);
1197 info->lti_buf.lb_buf = v3;
1198 info->lti_buf.lb_len = sizeof(*v3);
1199 rc = dt_xattr_set(env, dto, &info->lti_buf,
1200 XATTR_NAME_LOV, 0, th, capa);
1206 rc = dt_xattr_set(env, dto, &lmv_buf, XATTR_NAME_LMV, fl, th,
1210 rc = dt_xattr_set(env, dt_object_child(dt), &lmv_buf, XATTR_NAME_LMV,
1216 static int lod_xattr_set(const struct lu_env *env,
1217 struct dt_object *dt, const struct lu_buf *buf,
1218 const char *name, int fl, struct thandle *th,
1219 struct lustre_capa *capa)
1221 struct lod_object *lo = lod_dt_obj(dt);
1222 struct dt_object *next = dt_object_child(dt);
1228 attr = dt->do_lu.lo_header->loh_attr & S_IFMT;
1229 if (S_ISDIR(attr) && strcmp(name, XATTR_NAME_LOV) == 0) {
1230 rc = lod_xattr_set_lov_on_dir(env, dt, buf, name, fl, th, capa);
1231 } else if (S_ISREG(attr) && !strcmp(name, XATTR_NAME_LOV)) {
1232 /* in case of lov EA swap, just set it
1233 * if not, it is a replay so check striping match what we
1234 * already have during req replay, declare_xattr_set()
1235 * defines striping, then create() does the work
1237 if (fl & LU_XATTR_REPLACE) {
1238 /* free stripes, then update disk */
1239 lod_object_free_striping(env, lod_dt_obj(dt));
1240 rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
1242 rc = lod_striping_create(env, dt, NULL, NULL, th);
1244 } else if (strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0) {
1247 rc = lod_xattr_set_default_lmv_on_dir(env, dt, buf, name, fl,
1251 * behave transparantly for all other EAs
1253 rc = dt_xattr_set(env, next, buf, name, fl, th, capa);
1256 if (rc != 0 || !S_ISDIR(attr))
1259 if (lo->ldo_stripenr == 0)
1262 for (i = 0; i < lo->ldo_stripenr; i++) {
1263 LASSERT(lo->ldo_stripe[i]);
1264 rc = dt_xattr_set(env, lo->ldo_stripe[i], buf, name, fl, th,
1273 static int lod_declare_xattr_del(const struct lu_env *env,
1274 struct dt_object *dt, const char *name,
1277 return dt_declare_xattr_del(env, dt_object_child(dt), name, th);
1280 static int lod_xattr_del(const struct lu_env *env, struct dt_object *dt,
1281 const char *name, struct thandle *th,
1282 struct lustre_capa *capa)
1284 if (!strcmp(name, XATTR_NAME_LOV))
1285 lod_object_free_striping(env, lod_dt_obj(dt));
1286 return dt_xattr_del(env, dt_object_child(dt), name, th, capa);
1289 static int lod_xattr_list(const struct lu_env *env,
1290 struct dt_object *dt, struct lu_buf *buf,
1291 struct lustre_capa *capa)
1293 return dt_xattr_list(env, dt_object_child(dt), buf, capa);
1296 int lod_object_set_pool(struct lod_object *o, char *pool)
1301 len = strlen(o->ldo_pool);
1302 OBD_FREE(o->ldo_pool, len + 1);
1307 OBD_ALLOC(o->ldo_pool, len + 1);
1308 if (o->ldo_pool == NULL)
1310 strcpy(o->ldo_pool, pool);
1315 static inline int lod_object_will_be_striped(int is_reg, const struct lu_fid *fid)
1317 return (is_reg && fid_seq(fid) != FID_SEQ_LOCAL_FILE);
1321 static int lod_cache_parent_lov_striping(const struct lu_env *env,
1322 struct lod_object *lp)
1324 struct lod_thread_info *info = lod_env_info(env);
1325 struct lov_user_md_v1 *v1 = NULL;
1326 struct lov_user_md_v3 *v3 = NULL;
1330 /* called from MDD without parent being write locked,
1332 dt_write_lock(env, dt_object_child(&lp->ldo_obj), 0);
1333 rc = lod_get_lov_ea(env, lp);
1337 if (rc < sizeof(struct lov_user_md)) {
1338 /* don't lookup for non-existing or invalid striping */
1339 lp->ldo_def_striping_set = 0;
1340 lp->ldo_striping_cached = 1;
1341 lp->ldo_def_stripe_size = 0;
1342 lp->ldo_def_stripenr = 0;
1343 lp->ldo_def_stripe_offset = (typeof(v1->lmm_stripe_offset))(-1);
1344 GOTO(unlock, rc = 0);
1348 v1 = info->lti_ea_store;
1349 if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V1))
1350 lustre_swab_lov_user_md_v1(v1);
1351 else if (v1->lmm_magic == __swab32(LOV_USER_MAGIC_V3))
1352 lustre_swab_lov_user_md_v3(v3);
1354 if (v1->lmm_magic != LOV_MAGIC_V3 && v1->lmm_magic != LOV_MAGIC_V1)
1355 GOTO(unlock, rc = 0);
1357 if (v1->lmm_pattern != LOV_PATTERN_RAID0 && v1->lmm_pattern != 0)
1358 GOTO(unlock, rc = 0);
1360 CDEBUG(D_INFO, DFID" stripe_count=%d stripe_size=%d stripe_offset=%d\n",
1361 PFID(lu_object_fid(&lp->ldo_obj.do_lu)),
1362 (int)v1->lmm_stripe_count,
1363 (int)v1->lmm_stripe_size, (int)v1->lmm_stripe_offset);
1365 lp->ldo_def_stripenr = v1->lmm_stripe_count;
1366 lp->ldo_def_stripe_size = v1->lmm_stripe_size;
1367 lp->ldo_def_stripe_offset = v1->lmm_stripe_offset;
1368 lp->ldo_striping_cached = 1;
1369 lp->ldo_def_striping_set = 1;
1370 if (v1->lmm_magic == LOV_USER_MAGIC_V3) {
1371 /* XXX: sanity check here */
1372 v3 = (struct lov_user_md_v3 *) v1;
1373 if (v3->lmm_pool_name[0])
1374 lod_object_set_pool(lp, v3->lmm_pool_name);
1378 dt_write_unlock(env, dt_object_child(&lp->ldo_obj));
1383 static int lod_cache_parent_lmv_striping(const struct lu_env *env,
1384 struct lod_object *lp)
1386 struct lod_thread_info *info = lod_env_info(env);
1387 struct lmv_user_md_v1 *v1 = NULL;
1391 /* called from MDD without parent being write locked,
1393 dt_write_lock(env, dt_object_child(&lp->ldo_obj), 0);
1394 rc = lod_get_default_lmv_ea(env, lp);
1398 if (rc < sizeof(struct lmv_user_md)) {
1399 /* don't lookup for non-existing or invalid striping */
1400 lp->ldo_dir_def_striping_set = 0;
1401 lp->ldo_dir_striping_cached = 1;
1402 lp->ldo_dir_def_stripenr = 0;
1403 lp->ldo_dir_def_stripe_offset =
1404 (typeof(v1->lum_stripe_offset))(-1);
1405 lp->ldo_dir_def_hash_type = LMV_HASH_TYPE_FNV_1A_64;
1406 GOTO(unlock, rc = 0);
1410 v1 = info->lti_ea_store;
1412 lp->ldo_dir_def_stripenr = le32_to_cpu(v1->lum_stripe_count) - 1;
1413 lp->ldo_dir_def_stripe_offset = le32_to_cpu(v1->lum_stripe_offset);
1414 lp->ldo_dir_def_hash_type = le32_to_cpu(v1->lum_hash_type);
1415 lp->ldo_dir_def_striping_set = 1;
1416 lp->ldo_dir_striping_cached = 1;
1420 dt_write_unlock(env, dt_object_child(&lp->ldo_obj));
1424 static int lod_cache_parent_striping(const struct lu_env *env,
1425 struct lod_object *lp,
1431 rc = lod_load_striping(env, lp);
1435 if (!lp->ldo_striping_cached) {
1436 /* we haven't tried to get default striping for
1437 * the directory yet, let's cache it in the object */
1438 rc = lod_cache_parent_lov_striping(env, lp);
1443 if (S_ISDIR(child_mode) && !lp->ldo_dir_striping_cached)
1444 rc = lod_cache_parent_lmv_striping(env, lp);
1450 * used to transfer default striping data to the object being created
1452 static void lod_ah_init(const struct lu_env *env,
1453 struct dt_allocation_hint *ah,
1454 struct dt_object *parent,
1455 struct dt_object *child,
1458 struct lod_device *d = lu2lod_dev(child->do_lu.lo_dev);
1459 struct dt_object *nextp = NULL;
1460 struct dt_object *nextc;
1461 struct lod_object *lp = NULL;
1462 struct lod_object *lc;
1463 struct lov_desc *desc;
1468 if (likely(parent)) {
1469 nextp = dt_object_child(parent);
1470 lp = lod_dt_obj(parent);
1473 nextc = dt_object_child(child);
1474 lc = lod_dt_obj(child);
1476 LASSERT(lc->ldo_stripenr == 0);
1477 LASSERT(lc->ldo_stripe == NULL);
1480 * local object may want some hints
1481 * in case of late striping creation, ->ah_init()
1482 * can be called with local object existing
1484 if (!dt_object_exists(nextc) || dt_object_remote(nextc))
1485 nextc->do_ops->do_ah_init(env, ah, dt_object_remote(nextp) ?
1486 NULL : nextp, nextc, child_mode);
1488 if (S_ISDIR(child_mode)) {
1491 if (lc->ldo_dir_stripe == NULL) {
1492 OBD_ALLOC_PTR(lc->ldo_dir_stripe);
1493 if (lc->ldo_dir_stripe == NULL)
1497 if (lp->ldo_dir_stripe == NULL) {
1498 OBD_ALLOC_PTR(lp->ldo_dir_stripe);
1499 if (lp->ldo_dir_stripe == NULL)
1503 rc = lod_cache_parent_striping(env, lp, child_mode);
1507 /* transfer defaults to new directory */
1508 if (lp->ldo_striping_cached) {
1510 lod_object_set_pool(lc, lp->ldo_pool);
1511 lc->ldo_def_stripenr = lp->ldo_def_stripenr;
1512 lc->ldo_def_stripe_size = lp->ldo_def_stripe_size;
1513 lc->ldo_def_stripe_offset = lp->ldo_def_stripe_offset;
1514 lc->ldo_striping_cached = 1;
1515 lc->ldo_def_striping_set = 1;
1516 CDEBUG(D_OTHER, "inherite EA sz:%d off:%d nr:%d\n",
1517 (int)lc->ldo_def_stripe_size,
1518 (int)lc->ldo_def_stripe_offset,
1519 (int)lc->ldo_def_stripenr);
1522 /* transfer dir defaults to new directory */
1523 if (lp->ldo_dir_striping_cached) {
1524 lc->ldo_dir_def_stripenr = lp->ldo_dir_def_stripenr;
1525 lc->ldo_dir_def_stripe_offset =
1526 lp->ldo_dir_def_stripe_offset;
1527 lc->ldo_dir_def_hash_type =
1528 lp->ldo_dir_def_hash_type;
1529 lc->ldo_dir_striping_cached = 1;
1530 lc->ldo_dir_def_striping_set = 1;
1531 CDEBUG(D_INFO, "inherit default EA nr:%d off:%d t%u\n",
1532 (int)lc->ldo_dir_def_stripenr,
1533 (int)lc->ldo_dir_def_stripe_offset,
1534 lc->ldo_dir_def_hash_type);
1537 /* If the directory is specified with certain stripes */
1538 if (ah->dah_eadata != NULL && ah->dah_eadata_len != 0) {
1539 const struct lmv_user_md_v1 *lum1 = ah->dah_eadata;
1542 rc = lod_verify_md_striping(d, lum1);
1544 le32_to_cpu(lum1->lum_stripe_count) > 1) {
1545 /* Directory will be striped only if
1546 * stripe_count > 1 */
1548 le32_to_cpu(lum1->lum_stripe_count) - 1;
1549 lc->ldo_dir_stripe_offset =
1550 le32_to_cpu(lum1->lum_stripe_offset);
1551 lc->ldo_dir_hash_type =
1552 le32_to_cpu(lum1->lum_hash_type);
1553 CDEBUG(D_INFO, "set stripe EA nr:%hu off:%d\n",
1555 (int)lc->ldo_dir_stripe_offset);
1557 } else if (lp->ldo_dir_def_striping_set) {
1558 /* If there are default dir stripe from parent */
1559 lc->ldo_stripenr = lp->ldo_dir_def_stripenr;
1560 lc->ldo_dir_stripe_offset =
1561 lp->ldo_dir_def_stripe_offset;
1562 lc->ldo_dir_hash_type =
1563 lp->ldo_dir_def_hash_type;
1564 CDEBUG(D_INFO, "inherit EA nr:%hu off:%d\n",
1566 (int)lc->ldo_dir_stripe_offset);
1568 /* set default stripe for this directory */
1569 lc->ldo_stripenr = 0;
1570 lc->ldo_dir_stripe_offset = -1;
1573 CDEBUG(D_INFO, "final striping count:%hu, offset:%d\n",
1574 lc->ldo_stripenr, (int)lc->ldo_dir_stripe_offset);
1580 * if object is going to be striped over OSTs, transfer default
1581 * striping information to the child, so that we can use it
1582 * during declaration and creation
1584 if (!lod_object_will_be_striped(S_ISREG(child_mode),
1585 lu_object_fid(&child->do_lu)))
1588 * try from the parent
1590 if (likely(parent)) {
1591 lod_cache_parent_striping(env, lp, child_mode);
1593 lc->ldo_def_stripe_offset = (__u16) -1;
1595 if (lp->ldo_def_striping_set) {
1597 lod_object_set_pool(lc, lp->ldo_pool);
1598 lc->ldo_stripenr = lp->ldo_def_stripenr;
1599 lc->ldo_stripe_size = lp->ldo_def_stripe_size;
1600 lc->ldo_def_stripe_offset = lp->ldo_def_stripe_offset;
1601 CDEBUG(D_OTHER, "striping from parent: #%d, sz %d %s\n",
1602 lc->ldo_stripenr, lc->ldo_stripe_size,
1603 lp->ldo_pool ? lp->ldo_pool : "");
1608 * if the parent doesn't provide with specific pattern, grab fs-wide one
1610 desc = &d->lod_desc;
1611 if (lc->ldo_stripenr == 0)
1612 lc->ldo_stripenr = desc->ld_default_stripe_count;
1613 if (lc->ldo_stripe_size == 0)
1614 lc->ldo_stripe_size = desc->ld_default_stripe_size;
1615 CDEBUG(D_OTHER, "final striping: # %d stripes, sz %d from %s\n",
1616 lc->ldo_stripenr, lc->ldo_stripe_size,
1617 lc->ldo_pool ? lc->ldo_pool : "");
1620 /* we do not cache stripe information for slave stripe, see
1621 * lod_xattr_set_lov_on_dir */
1622 if (lp != NULL && lp->ldo_dir_slave_stripe)
1623 lod_lov_stripe_cache_clear(lp);
1628 #define ll_do_div64(aaa,bbb) do_div((aaa), (bbb))
1630 * this function handles a special case when truncate was done
1631 * on a stripeless object and now striping is being created
1632 * we can't lose that size, so we have to propagate it to newly
1635 static int lod_declare_init_size(const struct lu_env *env,
1636 struct dt_object *dt, struct thandle *th)
1638 struct dt_object *next = dt_object_child(dt);
1639 struct lod_object *lo = lod_dt_obj(dt);
1640 struct lu_attr *attr = &lod_env_info(env)->lti_attr;
1641 uint64_t size, offs;
1645 /* XXX: we support the simplest (RAID0) striping so far */
1646 LASSERT(lo->ldo_stripe || lo->ldo_stripenr == 0);
1647 LASSERT(lo->ldo_stripe_size > 0);
1649 rc = dt_attr_get(env, next, attr, BYPASS_CAPA);
1650 LASSERT(attr->la_valid & LA_SIZE);
1654 size = attr->la_size;
1658 /* ll_do_div64(a, b) returns a % b, and a = a / b */
1659 ll_do_div64(size, (__u64) lo->ldo_stripe_size);
1660 stripe = ll_do_div64(size, (__u64) lo->ldo_stripenr);
1662 size = size * lo->ldo_stripe_size;
1663 offs = attr->la_size;
1664 size += ll_do_div64(offs, lo->ldo_stripe_size);
1666 attr->la_valid = LA_SIZE;
1667 attr->la_size = size;
1669 rc = dt_declare_attr_set(env, lo->ldo_stripe[stripe], attr, th);
1675 * Create declaration of striped object
1677 int lod_declare_striped_object(const struct lu_env *env, struct dt_object *dt,
1678 struct lu_attr *attr,
1679 const struct lu_buf *lovea, struct thandle *th)
1681 struct lod_thread_info *info = lod_env_info(env);
1682 struct dt_object *next = dt_object_child(dt);
1683 struct lod_object *lo = lod_dt_obj(dt);
1687 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_ALLOC_OBDO)) {
1688 /* failed to create striping, let's reset
1689 * config so that others don't get confused */
1690 lod_object_free_striping(env, lo);
1691 GOTO(out, rc = -ENOMEM);
1694 if (!dt_object_remote(next)) {
1695 /* choose OST and generate appropriate objects */
1696 rc = lod_qos_prep_create(env, lo, attr, lovea, th);
1698 /* failed to create striping, let's reset
1699 * config so that others don't get confused */
1700 lod_object_free_striping(env, lo);
1705 * declare storage for striping data
1707 info->lti_buf.lb_len = lov_mds_md_size(lo->ldo_stripenr,
1708 lo->ldo_pool ? LOV_MAGIC_V3 : LOV_MAGIC_V1);
1710 /* LOD can not choose OST objects for remote objects, i.e.
1711 * stripes must be ready before that. Right now, it can only
1712 * happen during migrate, i.e. migrate process needs to create
1713 * remote regular file (mdd_migrate_create), then the migrate
1714 * process will provide stripeEA. */
1715 LASSERT(lovea != NULL);
1716 info->lti_buf = *lovea;
1719 rc = dt_declare_xattr_set(env, next, &info->lti_buf,
1720 XATTR_NAME_LOV, 0, th);
1725 * if striping is created with local object's size > 0,
1726 * we have to propagate this size to specific object
1727 * the case is possible only when local object was created previously
1729 if (dt_object_exists(next))
1730 rc = lod_declare_init_size(env, dt, th);
1736 int lod_dir_striping_create_internal(const struct lu_env *env,
1737 struct dt_object *dt,
1738 struct lu_attr *attr,
1739 const struct dt_object_format *dof,
1743 struct lod_thread_info *info = lod_env_info(env);
1744 struct dt_object *next = dt_object_child(dt);
1745 struct lod_object *lo = lod_dt_obj(dt);
1749 if (lo->ldo_dir_def_striping_set &&
1750 !LMVEA_DELETE_VALUES(lo->ldo_stripenr,
1751 lo->ldo_dir_stripe_offset)) {
1752 struct lmv_user_md_v1 *v1 = info->lti_ea_store;
1753 int stripe_count = lo->ldo_stripenr + 1;
1755 if (info->lti_ea_store_size < sizeof(*v1)) {
1756 rc = lod_ea_store_resize(info, sizeof(*v1));
1759 v1 = info->lti_ea_store;
1762 memset(v1, 0, sizeof(*v1));
1763 v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
1764 v1->lum_stripe_count = cpu_to_le32(stripe_count);
1765 v1->lum_stripe_offset =
1766 cpu_to_le32(lo->ldo_dir_stripe_offset);
1768 info->lti_buf.lb_buf = v1;
1769 info->lti_buf.lb_len = sizeof(*v1);
1772 rc = lod_declare_xattr_set_lmv(env, dt, attr,
1773 &info->lti_buf, th);
1775 rc = lod_xattr_set_lmv(env, dt, &info->lti_buf,
1776 XATTR_NAME_LMV, 0, th,
1782 /* Transfer default LMV striping from the parent */
1783 if (lo->ldo_dir_striping_cached &&
1784 !LMVEA_DELETE_VALUES(lo->ldo_dir_def_stripenr,
1785 lo->ldo_dir_def_stripe_offset)) {
1786 struct lmv_user_md_v1 *v1 = info->lti_ea_store;
1787 int def_stripe_count = lo->ldo_dir_def_stripenr + 1;
1789 if (info->lti_ea_store_size < sizeof(*v1)) {
1790 rc = lod_ea_store_resize(info, sizeof(*v1));
1793 v1 = info->lti_ea_store;
1796 memset(v1, 0, sizeof(*v1));
1797 v1->lum_magic = cpu_to_le32(LMV_USER_MAGIC);
1798 v1->lum_stripe_count = cpu_to_le32(def_stripe_count);
1799 v1->lum_stripe_offset =
1800 cpu_to_le32(lo->ldo_dir_def_stripe_offset);
1802 cpu_to_le32(lo->ldo_dir_def_hash_type);
1804 info->lti_buf.lb_buf = v1;
1805 info->lti_buf.lb_len = sizeof(*v1);
1807 rc = dt_declare_xattr_set(env, next, &info->lti_buf,
1808 XATTR_NAME_DEFAULT_LMV, 0,
1811 rc = dt_xattr_set(env, next, &info->lti_buf,
1812 XATTR_NAME_DEFAULT_LMV, 0, th,
1818 /* Transfer default LOV striping from the parent */
1819 if (lo->ldo_striping_cached &&
1820 !LOVEA_DELETE_VALUES(lo->ldo_def_stripe_size,
1821 lo->ldo_def_stripenr,
1822 lo->ldo_def_stripe_offset)) {
1823 struct lov_user_md_v3 *v3 = info->lti_ea_store;
1825 if (info->lti_ea_store_size < sizeof(*v3)) {
1826 rc = lod_ea_store_resize(info, sizeof(*v3));
1829 v3 = info->lti_ea_store;
1832 memset(v3, 0, sizeof(*v3));
1833 v3->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V3);
1834 v3->lmm_stripe_count = cpu_to_le16(lo->ldo_def_stripenr);
1835 v3->lmm_stripe_offset = cpu_to_le16(lo->ldo_def_stripe_offset);
1836 v3->lmm_stripe_size = cpu_to_le32(lo->ldo_def_stripe_size);
1838 strncpy(v3->lmm_pool_name, lo->ldo_pool,
1841 info->lti_buf.lb_buf = v3;
1842 info->lti_buf.lb_len = sizeof(*v3);
1845 rc = dt_declare_xattr_set(env, next, &info->lti_buf,
1846 XATTR_NAME_LOV, 0, th);
1848 rc = dt_xattr_set(env, next, &info->lti_buf,
1849 XATTR_NAME_LOV, 0, th,
1858 static int lod_declare_dir_striping_create(const struct lu_env *env,
1859 struct dt_object *dt,
1860 struct lu_attr *attr,
1861 struct dt_object_format *dof,
1864 return lod_dir_striping_create_internal(env, dt, attr, dof, th, true);
1867 static int lod_dir_striping_create(const struct lu_env *env,
1868 struct dt_object *dt,
1869 struct lu_attr *attr,
1870 struct dt_object_format *dof,
1873 return lod_dir_striping_create_internal(env, dt, attr, dof, th, false);
1876 static int lod_declare_object_create(const struct lu_env *env,
1877 struct dt_object *dt,
1878 struct lu_attr *attr,
1879 struct dt_allocation_hint *hint,
1880 struct dt_object_format *dof,
1883 struct dt_object *next = dt_object_child(dt);
1884 struct lod_object *lo = lod_dt_obj(dt);
1893 * first of all, we declare creation of local object
1895 rc = dt_declare_create(env, next, attr, hint, dof, th);
1899 if (dof->dof_type == DFT_SYM)
1900 dt->do_body_ops = &lod_body_lnk_ops;
1903 * it's lod_ah_init() who has decided the object will striped
1905 if (dof->dof_type == DFT_REGULAR) {
1906 /* callers don't want stripes */
1907 /* XXX: all tricky interactions with ->ah_make_hint() decided
1908 * to use striping, then ->declare_create() behaving differently
1909 * should be cleaned */
1910 if (dof->u.dof_reg.striped == 0)
1911 lo->ldo_stripenr = 0;
1912 if (lo->ldo_stripenr > 0)
1913 rc = lod_declare_striped_object(env, dt, attr,
1915 } else if (dof->dof_type == DFT_DIR) {
1916 /* Orphan object (like migrating object) does not have
1917 * lod_dir_stripe, see lod_ah_init */
1918 if (lo->ldo_dir_stripe != NULL)
1919 rc = lod_declare_dir_striping_create(env, dt, attr,
1926 int lod_striping_create(const struct lu_env *env, struct dt_object *dt,
1927 struct lu_attr *attr, struct dt_object_format *dof,
1930 struct lod_object *lo = lod_dt_obj(dt);
1934 LASSERT(lo->ldo_striping_cached == 0);
1936 /* create all underlying objects */
1937 for (i = 0; i < lo->ldo_stripenr; i++) {
1938 LASSERT(lo->ldo_stripe[i]);
1939 rc = dt_create(env, lo->ldo_stripe[i], attr, NULL, dof, th);
1945 rc = lod_generate_and_set_lovea(env, lo, th);
1950 static int lod_object_create(const struct lu_env *env, struct dt_object *dt,
1951 struct lu_attr *attr,
1952 struct dt_allocation_hint *hint,
1953 struct dt_object_format *dof, struct thandle *th)
1955 struct dt_object *next = dt_object_child(dt);
1956 struct lod_object *lo = lod_dt_obj(dt);
1960 /* create local object */
1961 rc = dt_create(env, next, attr, hint, dof, th);
1964 if (S_ISDIR(dt->do_lu.lo_header->loh_attr) &&
1965 lo->ldo_dir_stripe != NULL)
1966 rc = lod_dir_striping_create(env, dt, attr, dof, th);
1967 else if (lo->ldo_stripe && dof->u.dof_reg.striped != 0)
1968 rc = lod_striping_create(env, dt, attr, dof, th);
1974 static int lod_declare_object_destroy(const struct lu_env *env,
1975 struct dt_object *dt,
1978 struct dt_object *next = dt_object_child(dt);
1979 struct lod_object *lo = lod_dt_obj(dt);
1984 * we declare destroy for the local object
1986 rc = dt_declare_destroy(env, next, th);
1990 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ))
1994 * load striping information, notice we don't do this when object
1995 * is being initialized as we don't need this information till
1996 * few specific cases like destroy, chown
1998 rc = lod_load_striping(env, lo);
2002 /* declare destroy for all underlying objects */
2003 for (i = 0; i < lo->ldo_stripenr; i++) {
2004 LASSERT(lo->ldo_stripe[i]);
2005 rc = dt_declare_destroy(env, lo->ldo_stripe[i], th);
2014 static int lod_object_destroy(const struct lu_env *env,
2015 struct dt_object *dt, struct thandle *th)
2017 struct dt_object *next = dt_object_child(dt);
2018 struct lod_object *lo = lod_dt_obj(dt);
2022 /* destroy local object */
2023 rc = dt_destroy(env, next, th);
2027 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ))
2030 /* destroy all underlying objects */
2031 for (i = 0; i < lo->ldo_stripenr; i++) {
2032 LASSERT(lo->ldo_stripe[i]);
2033 /* for striped directory, next == ldo_stripe[0] */
2034 if (next != lo->ldo_stripe[i]) {
2035 rc = dt_destroy(env, lo->ldo_stripe[i], th);
2044 static int lod_index_try(const struct lu_env *env, struct dt_object *dt,
2045 const struct dt_index_features *feat)
2047 struct dt_object *next = dt_object_child(dt);
2051 LASSERT(next->do_ops);
2052 LASSERT(next->do_ops->do_index_try);
2054 rc = next->do_ops->do_index_try(env, next, feat);
2055 if (next->do_index_ops && dt->do_index_ops == NULL)
2056 dt->do_index_ops = &lod_index_ops;
2061 static int lod_declare_ref_add(const struct lu_env *env,
2062 struct dt_object *dt, struct thandle *th)
2064 return dt_declare_ref_add(env, dt_object_child(dt), th);
2067 static int lod_ref_add(const struct lu_env *env,
2068 struct dt_object *dt, struct thandle *th)
2070 return dt_ref_add(env, dt_object_child(dt), th);
2073 static int lod_declare_ref_del(const struct lu_env *env,
2074 struct dt_object *dt, struct thandle *th)
2076 return dt_declare_ref_del(env, dt_object_child(dt), th);
2079 static int lod_ref_del(const struct lu_env *env,
2080 struct dt_object *dt, struct thandle *th)
2082 return dt_ref_del(env, dt_object_child(dt), th);
2085 static struct obd_capa *lod_capa_get(const struct lu_env *env,
2086 struct dt_object *dt,
2087 struct lustre_capa *old, __u64 opc)
2089 return dt_capa_get(env, dt_object_child(dt), old, opc);
2092 static int lod_object_sync(const struct lu_env *env, struct dt_object *dt)
2094 return dt_object_sync(env, dt_object_child(dt));
2097 struct lod_slave_locks {
2099 struct lustre_handle lsl_handle[0];
2102 static int lod_object_unlock_internal(const struct lu_env *env,
2103 struct dt_object *dt,
2104 struct ldlm_enqueue_info *einfo,
2105 ldlm_policy_data_t *policy)
2107 struct lod_object *lo = lod_dt_obj(dt);
2108 struct lod_slave_locks *slave_locks = einfo->ei_cbdata;
2113 if (slave_locks == NULL)
2116 for (i = 0; i < slave_locks->lsl_lock_count; i++) {
2117 if (lustre_handle_is_used(&slave_locks->lsl_handle[i])) {
2120 einfo->ei_cbdata = &slave_locks->lsl_handle[i];
2121 rc1 = dt_object_unlock(env, lo->ldo_stripe[i], einfo,
2124 rc = rc == 0 ? rc1 : rc;
2131 static int lod_object_unlock(const struct lu_env *env, struct dt_object *dt,
2132 struct ldlm_enqueue_info *einfo,
2133 union ldlm_policy_data *policy)
2135 struct lod_object *lo = lod_dt_obj(dt);
2136 struct lod_slave_locks *slave_locks = einfo->ei_cbdata;
2137 int slave_locks_size;
2141 if (slave_locks == NULL)
2144 rc = lod_load_striping(env, lo);
2148 /* Note: for remote lock for single stripe dir, MDT will cancel
2149 * the lock by lockh directly */
2150 if (lo->ldo_stripenr == 0 && dt_object_remote(dt_object_child(dt)))
2153 if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
2156 /* Only cancel slave lock for striped dir */
2157 rc = lod_object_unlock_internal(env, dt, einfo, policy);
2159 slave_locks_size = sizeof(*slave_locks) + slave_locks->lsl_lock_count *
2160 sizeof(slave_locks->lsl_handle[0]);
2161 OBD_FREE(slave_locks, slave_locks_size);
2162 einfo->ei_cbdata = NULL;
2167 static int lod_object_lock(const struct lu_env *env,
2168 struct dt_object *dt,
2169 struct lustre_handle *lh,
2170 struct ldlm_enqueue_info *einfo,
2171 union ldlm_policy_data *policy)
2173 struct lod_object *lo = lod_dt_obj(dt);
2176 int slave_locks_size;
2177 struct lod_slave_locks *slave_locks = NULL;
2180 /* remote object lock */
2181 if (!einfo->ei_enq_slave) {
2182 LASSERT(dt_object_remote(dt));
2183 return dt_object_lock(env, dt_object_child(dt), lh, einfo,
2187 if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
2190 rc = lod_load_striping(env, lo);
2195 if (lo->ldo_stripenr == 0)
2198 slave_locks_size = sizeof(*slave_locks) + lo->ldo_stripenr *
2199 sizeof(slave_locks->lsl_handle[0]);
2200 /* Freed in lod_object_unlock */
2201 OBD_ALLOC(slave_locks, slave_locks_size);
2202 if (slave_locks == NULL)
2204 slave_locks->lsl_lock_count = lo->ldo_stripenr;
2206 /* striped directory lock */
2207 for (i = 0; i < lo->ldo_stripenr; i++) {
2208 struct lustre_handle lockh;
2210 LASSERT(lo->ldo_stripe[i]);
2211 rc = dt_object_lock(env, lo->ldo_stripe[i], &lockh, einfo,
2216 slave_locks->lsl_handle[i] = lockh;
2219 einfo->ei_cbdata = slave_locks;
2222 if (rc != 0 && slave_locks != NULL) {
2223 einfo->ei_cbdata = slave_locks;
2224 lod_object_unlock_internal(env, dt, einfo, policy);
2225 OBD_FREE(slave_locks, slave_locks_size);
2226 einfo->ei_cbdata = NULL;
2232 struct dt_object_operations lod_obj_ops = {
2233 .do_read_lock = lod_object_read_lock,
2234 .do_write_lock = lod_object_write_lock,
2235 .do_read_unlock = lod_object_read_unlock,
2236 .do_write_unlock = lod_object_write_unlock,
2237 .do_write_locked = lod_object_write_locked,
2238 .do_attr_get = lod_attr_get,
2239 .do_declare_attr_set = lod_declare_attr_set,
2240 .do_attr_set = lod_attr_set,
2241 .do_xattr_get = lod_xattr_get,
2242 .do_declare_xattr_set = lod_declare_xattr_set,
2243 .do_xattr_set = lod_xattr_set,
2244 .do_declare_xattr_del = lod_declare_xattr_del,
2245 .do_xattr_del = lod_xattr_del,
2246 .do_xattr_list = lod_xattr_list,
2247 .do_ah_init = lod_ah_init,
2248 .do_declare_create = lod_declare_object_create,
2249 .do_create = lod_object_create,
2250 .do_declare_destroy = lod_declare_object_destroy,
2251 .do_destroy = lod_object_destroy,
2252 .do_index_try = lod_index_try,
2253 .do_declare_ref_add = lod_declare_ref_add,
2254 .do_ref_add = lod_ref_add,
2255 .do_declare_ref_del = lod_declare_ref_del,
2256 .do_ref_del = lod_ref_del,
2257 .do_capa_get = lod_capa_get,
2258 .do_object_sync = lod_object_sync,
2259 .do_object_lock = lod_object_lock,
2260 .do_object_unlock = lod_object_unlock,
2263 static ssize_t lod_read(const struct lu_env *env, struct dt_object *dt,
2264 struct lu_buf *buf, loff_t *pos,
2265 struct lustre_capa *capa)
2267 struct dt_object *next = dt_object_child(dt);
2268 return next->do_body_ops->dbo_read(env, next, buf, pos, capa);
2271 static ssize_t lod_declare_write(const struct lu_env *env,
2272 struct dt_object *dt,
2273 const struct lu_buf *buf, loff_t pos,
2276 return dt_declare_record_write(env, dt_object_child(dt),
2280 static ssize_t lod_write(const struct lu_env *env, struct dt_object *dt,
2281 const struct lu_buf *buf, loff_t *pos,
2282 struct thandle *th, struct lustre_capa *capa, int iq)
2284 struct dt_object *next = dt_object_child(dt);
2286 return next->do_body_ops->dbo_write(env, next, buf, pos, th, capa, iq);
2289 static const struct dt_body_operations lod_body_lnk_ops = {
2290 .dbo_read = lod_read,
2291 .dbo_declare_write = lod_declare_write,
2292 .dbo_write = lod_write
2295 static int lod_object_init(const struct lu_env *env, struct lu_object *lo,
2296 const struct lu_object_conf *conf)
2298 struct lod_device *lod = lu2lod_dev(lo->lo_dev);
2299 struct lu_device *cdev = NULL;
2300 struct lu_object *cobj;
2301 struct lod_tgt_descs *ltd = NULL;
2302 struct lod_tgt_desc *tgt;
2304 int type = LU_SEQ_RANGE_ANY;
2308 rc = lod_fld_lookup(env, lod, lu_object_fid(lo), &idx, &type);
2312 if (type == LU_SEQ_RANGE_MDT &&
2313 idx == lu_site2seq(lo->lo_dev->ld_site)->ss_node_id) {
2314 cdev = &lod->lod_child->dd_lu_dev;
2315 } else if (type == LU_SEQ_RANGE_MDT) {
2316 ltd = &lod->lod_mdt_descs;
2318 } else if (type == LU_SEQ_RANGE_OST) {
2319 ltd = &lod->lod_ost_descs;
2326 if (ltd->ltd_tgts_size > idx &&
2327 cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx)) {
2328 tgt = LTD_TGT(ltd, idx);
2330 LASSERT(tgt != NULL);
2331 LASSERT(tgt->ltd_tgt != NULL);
2333 cdev = &(tgt->ltd_tgt->dd_lu_dev);
2335 lod_putref(lod, ltd);
2338 if (unlikely(cdev == NULL))
2341 cobj = cdev->ld_ops->ldo_object_alloc(env, lo->lo_header, cdev);
2342 if (unlikely(cobj == NULL))
2345 lu_object_add(lo, cobj);
2350 void lod_object_free_striping(const struct lu_env *env, struct lod_object *lo)
2354 if (lo->ldo_dir_stripe != NULL) {
2355 OBD_FREE_PTR(lo->ldo_dir_stripe);
2356 lo->ldo_dir_stripe = NULL;
2359 if (lo->ldo_stripe) {
2360 LASSERT(lo->ldo_stripes_allocated > 0);
2362 for (i = 0; i < lo->ldo_stripenr; i++) {
2363 if (lo->ldo_stripe[i])
2364 lu_object_put(env, &lo->ldo_stripe[i]->do_lu);
2367 i = sizeof(struct dt_object *) * lo->ldo_stripes_allocated;
2368 OBD_FREE(lo->ldo_stripe, i);
2369 lo->ldo_stripe = NULL;
2370 lo->ldo_stripes_allocated = 0;
2372 lo->ldo_stripenr = 0;
2373 lo->ldo_pattern = 0;
2377 * ->start is called once all slices are initialized, including header's
2378 * cache for mode (object type). using the type we can initialize ops
2380 static int lod_object_start(const struct lu_env *env, struct lu_object *o)
2382 if (S_ISLNK(o->lo_header->loh_attr & S_IFMT))
2383 lu2lod_obj(o)->ldo_obj.do_body_ops = &lod_body_lnk_ops;
2387 static void lod_object_free(const struct lu_env *env, struct lu_object *o)
2389 struct lod_object *mo = lu2lod_obj(o);
2392 * release all underlying object pinned
2395 lod_object_free_striping(env, mo);
2397 lod_object_set_pool(mo, NULL);
2400 OBD_SLAB_FREE_PTR(mo, lod_object_kmem);
2403 static void lod_object_release(const struct lu_env *env, struct lu_object *o)
2405 /* XXX: shouldn't we release everything here in case if object
2406 * creation failed before? */
2409 static int lod_object_print(const struct lu_env *env, void *cookie,
2410 lu_printer_t p, const struct lu_object *l)
2412 struct lod_object *o = lu2lod_obj((struct lu_object *) l);
2414 return (*p)(env, cookie, LUSTRE_LOD_NAME"-object@%p", o);
2417 struct lu_object_operations lod_lu_obj_ops = {
2418 .loo_object_init = lod_object_init,
2419 .loo_object_start = lod_object_start,
2420 .loo_object_free = lod_object_free,
2421 .loo_object_release = lod_object_release,
2422 .loo_object_print = lod_object_print,