1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/mdd/mdd_object.c
38 * Lustre Metadata Server (mdd) routines
40 * Author: Wang Di <wangdi@clusterfs.com>
44 # define EXPORT_SYMTAB
46 #define DEBUG_SUBSYSTEM S_MDS
48 #include <linux/module.h>
49 #ifdef HAVE_EXT4_LDISKFS
50 #include <ldiskfs/ldiskfs_jbd2.h>
52 #include <linux/jbd.h>
55 #include <obd_class.h>
56 #include <obd_support.h>
57 #include <lprocfs_status.h>
58 /* fid_be_cpu(), fid_cpu_to_be(). */
59 #include <lustre_fid.h>
61 #include <lustre_param.h>
62 #ifdef HAVE_EXT4_LDISKFS
63 #include <ldiskfs/ldiskfs.h>
65 #include <linux/ldiskfs_fs.h>
67 #include <lustre_mds.h>
68 #include <lustre/lustre_idl.h>
70 #include "mdd_internal.h"
72 static const struct lu_object_operations mdd_lu_obj_ops;
74 static int mdd_xattr_get(const struct lu_env *env,
75 struct md_object *obj, struct lu_buf *buf,
78 int mdd_data_get(const struct lu_env *env, struct mdd_object *obj,
81 LASSERTF(mdd_object_exists(obj), "FID is "DFID"\n",
82 PFID(mdd_object_fid(obj)));
83 mdo_data_get(env, obj, data);
87 int mdd_la_get(const struct lu_env *env, struct mdd_object *obj,
88 struct lu_attr *la, struct lustre_capa *capa)
90 LASSERTF(mdd_object_exists(obj), "FID is "DFID"\n",
91 PFID(mdd_object_fid(obj)));
92 return mdo_attr_get(env, obj, la, capa);
95 static void mdd_flags_xlate(struct mdd_object *obj, __u32 flags)
97 obj->mod_flags &= ~(APPEND_OBJ|IMMUTE_OBJ);
99 if (flags & LUSTRE_APPEND_FL)
100 obj->mod_flags |= APPEND_OBJ;
102 if (flags & LUSTRE_IMMUTABLE_FL)
103 obj->mod_flags |= IMMUTE_OBJ;
106 struct mdd_thread_info *mdd_env_info(const struct lu_env *env)
108 struct mdd_thread_info *info;
110 info = lu_context_key_get(&env->le_ctx, &mdd_thread_key);
111 LASSERT(info != NULL);
115 struct lu_buf *mdd_buf_get(const struct lu_env *env, void *area, ssize_t len)
119 buf = &mdd_env_info(env)->mti_buf;
125 void mdd_buf_put(struct lu_buf *buf)
127 if (buf == NULL || buf->lb_buf == NULL)
130 OBD_VFREE(buf->lb_buf, buf->lb_len);
132 OBD_FREE(buf->lb_buf, buf->lb_len);
137 const struct lu_buf *mdd_buf_get_const(const struct lu_env *env,
138 const void *area, ssize_t len)
142 buf = &mdd_env_info(env)->mti_buf;
143 buf->lb_buf = (void *)area;
148 #define BUF_VMALLOC_SIZE (CFS_PAGE_SIZE<<2) /* 16k */
149 struct lu_buf *mdd_buf_alloc(const struct lu_env *env, ssize_t len)
151 struct lu_buf *buf = &mdd_env_info(env)->mti_big_buf;
153 if ((len > buf->lb_len) && (buf->lb_buf != NULL)) {
155 OBD_VFREE(buf->lb_buf, buf->lb_len);
157 OBD_FREE(buf->lb_buf, buf->lb_len);
160 if (buf->lb_buf == NULL) {
162 if (buf->lb_len <= BUF_VMALLOC_SIZE) {
163 OBD_ALLOC(buf->lb_buf, buf->lb_len);
166 if (buf->lb_buf == NULL) {
167 OBD_VMALLOC(buf->lb_buf, buf->lb_len);
170 if (buf->lb_buf == NULL)
176 /** Increase the size of the \a mti_big_buf.
177 * preserves old data in buffer
178 * old buffer remains unchanged on error
179 * \retval 0 or -ENOMEM
181 int mdd_buf_grow(const struct lu_env *env, ssize_t len)
183 struct lu_buf *oldbuf = &mdd_env_info(env)->mti_big_buf;
186 LASSERT(len >= oldbuf->lb_len);
187 if (len > BUF_VMALLOC_SIZE) {
188 OBD_VMALLOC(buf.lb_buf, len);
191 OBD_ALLOC(buf.lb_buf, len);
194 if (buf.lb_buf == NULL)
198 memcpy(buf.lb_buf, oldbuf->lb_buf, oldbuf->lb_len);
200 if (oldbuf->lb_vmalloc)
201 OBD_VFREE(oldbuf->lb_buf, oldbuf->lb_len);
203 OBD_FREE(oldbuf->lb_buf, oldbuf->lb_len);
205 memcpy(oldbuf, &buf, sizeof(buf));
210 struct llog_cookie *mdd_max_cookie_get(const struct lu_env *env,
211 struct mdd_device *mdd)
213 struct mdd_thread_info *mti = mdd_env_info(env);
216 max_cookie_size = mdd_lov_cookiesize(env, mdd);
217 if (unlikely(mti->mti_max_cookie_size < max_cookie_size)) {
218 if (mti->mti_max_cookie)
219 OBD_FREE(mti->mti_max_cookie, mti->mti_max_cookie_size);
220 mti->mti_max_cookie = NULL;
221 mti->mti_max_cookie_size = 0;
223 if (unlikely(mti->mti_max_cookie == NULL)) {
224 OBD_ALLOC(mti->mti_max_cookie, max_cookie_size);
225 if (likely(mti->mti_max_cookie != NULL))
226 mti->mti_max_cookie_size = max_cookie_size;
228 if (likely(mti->mti_max_cookie != NULL))
229 memset(mti->mti_max_cookie, 0, mti->mti_max_cookie_size);
230 return mti->mti_max_cookie;
233 struct lov_mds_md *mdd_max_lmm_get(const struct lu_env *env,
234 struct mdd_device *mdd)
236 struct mdd_thread_info *mti = mdd_env_info(env);
239 max_lmm_size = mdd_lov_mdsize(env, mdd);
240 if (unlikely(mti->mti_max_lmm_size < max_lmm_size)) {
241 if (mti->mti_max_lmm)
242 OBD_FREE(mti->mti_max_lmm, mti->mti_max_lmm_size);
243 mti->mti_max_lmm = NULL;
244 mti->mti_max_lmm_size = 0;
246 if (unlikely(mti->mti_max_lmm == NULL)) {
247 OBD_ALLOC(mti->mti_max_lmm, max_lmm_size);
248 if (unlikely(mti->mti_max_lmm != NULL))
249 mti->mti_max_lmm_size = max_lmm_size;
251 return mti->mti_max_lmm;
254 struct lu_object *mdd_object_alloc(const struct lu_env *env,
255 const struct lu_object_header *hdr,
258 struct mdd_object *mdd_obj;
260 OBD_ALLOC_PTR(mdd_obj);
261 if (mdd_obj != NULL) {
264 o = mdd2lu_obj(mdd_obj);
265 lu_object_init(o, NULL, d);
266 mdd_obj->mod_obj.mo_ops = &mdd_obj_ops;
267 mdd_obj->mod_obj.mo_dir_ops = &mdd_dir_ops;
268 mdd_obj->mod_count = 0;
269 o->lo_ops = &mdd_lu_obj_ops;
276 static int mdd_object_init(const struct lu_env *env, struct lu_object *o,
277 const struct lu_object_conf *unused)
279 struct mdd_device *d = lu2mdd_dev(o->lo_dev);
280 struct mdd_object *mdd_obj = lu2mdd_obj(o);
281 struct lu_object *below;
282 struct lu_device *under;
285 mdd_obj->mod_cltime = 0;
286 under = &d->mdd_child->dd_lu_dev;
287 below = under->ld_ops->ldo_object_alloc(env, o->lo_header, under);
288 mdd_pdlock_init(mdd_obj);
292 lu_object_add(o, below);
297 static int mdd_object_start(const struct lu_env *env, struct lu_object *o)
299 if (lu_object_exists(o))
300 return mdd_get_flags(env, lu2mdd_obj(o));
305 static void mdd_object_free(const struct lu_env *env, struct lu_object *o)
307 struct mdd_object *mdd = lu2mdd_obj(o);
313 static int mdd_object_print(const struct lu_env *env, void *cookie,
314 lu_printer_t p, const struct lu_object *o)
316 struct mdd_object *mdd = lu2mdd_obj((struct lu_object *)o);
317 return (*p)(env, cookie, LUSTRE_MDD_NAME"-object@%p(open_count=%d, "
318 "valid=%x, cltime="LPU64", flags=%lx)",
319 mdd, mdd->mod_count, mdd->mod_valid,
320 mdd->mod_cltime, mdd->mod_flags);
323 static const struct lu_object_operations mdd_lu_obj_ops = {
324 .loo_object_init = mdd_object_init,
325 .loo_object_start = mdd_object_start,
326 .loo_object_free = mdd_object_free,
327 .loo_object_print = mdd_object_print,
330 struct mdd_object *mdd_object_find(const struct lu_env *env,
331 struct mdd_device *d,
332 const struct lu_fid *f)
334 return md2mdd_obj(md_object_find_slice(env, &d->mdd_md_dev, f));
337 static int mdd_path2fid(const struct lu_env *env, struct mdd_device *mdd,
338 const char *path, struct lu_fid *fid)
341 struct lu_fid *f = &mdd_env_info(env)->mti_fid;
342 struct mdd_object *obj;
343 struct lu_name *lname = &mdd_env_info(env)->mti_name;
348 /* temp buffer for path element */
349 buf = mdd_buf_alloc(env, PATH_MAX);
350 if (buf->lb_buf == NULL)
353 lname->ln_name = name = buf->lb_buf;
354 lname->ln_namelen = 0;
355 *f = mdd->mdd_root_fid;
362 while (*path != '/' && *path != '\0') {
370 /* find obj corresponding to fid */
371 obj = mdd_object_find(env, mdd, f);
373 GOTO(out, rc = -EREMOTE);
375 GOTO(out, rc = -PTR_ERR(obj));
376 /* get child fid from parent and name */
377 rc = mdd_lookup(env, &obj->mod_obj, lname, f, NULL);
378 mdd_object_put(env, obj);
383 lname->ln_namelen = 0;
392 /** The maximum depth that fid2path() will search.
393 * This is limited only because we want to store the fids for
394 * historical path lookup purposes.
396 #define MAX_PATH_DEPTH 100
398 /** mdd_path() lookup structure. */
399 struct path_lookup_info {
400 __u64 pli_recno; /**< history point */
401 __u64 pli_currec; /**< current record */
402 struct lu_fid pli_fid;
403 struct lu_fid pli_fids[MAX_PATH_DEPTH]; /**< path, in fids */
404 struct mdd_object *pli_mdd_obj;
405 char *pli_path; /**< full path */
407 int pli_linkno; /**< which hardlink to follow */
408 int pli_fidcount; /**< number of \a pli_fids */
411 static int mdd_path_current(const struct lu_env *env,
412 struct path_lookup_info *pli)
414 struct mdd_device *mdd = mdo2mdd(&pli->pli_mdd_obj->mod_obj);
415 struct mdd_object *mdd_obj;
416 struct lu_buf *buf = NULL;
417 struct link_ea_header *leh;
418 struct link_ea_entry *lee;
419 struct lu_name *tmpname = &mdd_env_info(env)->mti_name;
420 struct lu_fid *tmpfid = &mdd_env_info(env)->mti_fid;
426 ptr = pli->pli_path + pli->pli_pathlen - 1;
429 pli->pli_fidcount = 0;
430 pli->pli_fids[0] = *(struct lu_fid *)mdd_object_fid(pli->pli_mdd_obj);
432 while (!mdd_is_root(mdd, &pli->pli_fids[pli->pli_fidcount])) {
433 mdd_obj = mdd_object_find(env, mdd,
434 &pli->pli_fids[pli->pli_fidcount]);
436 GOTO(out, rc = -EREMOTE);
438 GOTO(out, rc = -PTR_ERR(mdd_obj));
439 rc = lu_object_exists(&mdd_obj->mod_obj.mo_lu);
441 mdd_object_put(env, mdd_obj);
445 /* Do I need to error out here? */
450 /* Get parent fid and object name */
451 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
452 buf = mdd_links_get(env, mdd_obj);
453 mdd_read_unlock(env, mdd_obj);
454 mdd_object_put(env, mdd_obj);
456 GOTO(out, rc = PTR_ERR(buf));
459 lee = (struct link_ea_entry *)(leh + 1); /* link #0 */
460 mdd_lee_unpack(lee, &reclen, tmpname, tmpfid);
462 /* If set, use link #linkno for path lookup, otherwise use
463 link #0. Only do this for the final path element. */
464 if ((pli->pli_fidcount == 0) &&
465 (pli->pli_linkno < leh->leh_reccount)) {
467 for (count = 0; count < pli->pli_linkno; count++) {
468 lee = (struct link_ea_entry *)
469 ((char *)lee + reclen);
470 mdd_lee_unpack(lee, &reclen, tmpname, tmpfid);
472 if (pli->pli_linkno < leh->leh_reccount - 1)
473 /* indicate to user there are more links */
477 /* Pack the name in the end of the buffer */
478 ptr -= tmpname->ln_namelen;
479 if (ptr - 1 <= pli->pli_path)
480 GOTO(out, rc = -EOVERFLOW);
481 strncpy(ptr, tmpname->ln_name, tmpname->ln_namelen);
484 /* Store the parent fid for historic lookup */
485 if (++pli->pli_fidcount >= MAX_PATH_DEPTH)
486 GOTO(out, rc = -EOVERFLOW);
487 pli->pli_fids[pli->pli_fidcount] = *tmpfid;
490 /* Verify that our path hasn't changed since we started the lookup.
491 Record the current index, and verify the path resolves to the
492 same fid. If it does, then the path is correct as of this index. */
493 cfs_spin_lock(&mdd->mdd_cl.mc_lock);
494 pli->pli_currec = mdd->mdd_cl.mc_index;
495 cfs_spin_unlock(&mdd->mdd_cl.mc_lock);
496 rc = mdd_path2fid(env, mdd, ptr, &pli->pli_fid);
498 CDEBUG(D_INFO, "mdd_path2fid(%s) failed %d\n", ptr, rc);
499 GOTO (out, rc = -EAGAIN);
501 if (!lu_fid_eq(&pli->pli_fids[0], &pli->pli_fid)) {
502 CDEBUG(D_INFO, "mdd_path2fid(%s) found another FID o="DFID
503 " n="DFID"\n", ptr, PFID(&pli->pli_fids[0]),
504 PFID(&pli->pli_fid));
505 GOTO(out, rc = -EAGAIN);
507 ptr++; /* skip leading / */
508 memmove(pli->pli_path, ptr, pli->pli_path + pli->pli_pathlen - ptr);
512 if (buf && !IS_ERR(buf) && buf->lb_vmalloc)
513 /* if we vmalloced a large buffer drop it */
519 static int mdd_path_historic(const struct lu_env *env,
520 struct path_lookup_info *pli)
525 /* Returns the full path to this fid, as of changelog record recno. */
526 static int mdd_path(const struct lu_env *env, struct md_object *obj,
527 char *path, int pathlen, __u64 *recno, int *linkno)
529 struct path_lookup_info *pli;
537 if (mdd_is_root(mdo2mdd(obj), mdd_object_fid(md2mdd_obj(obj)))) {
546 pli->pli_mdd_obj = md2mdd_obj(obj);
547 pli->pli_recno = *recno;
548 pli->pli_path = path;
549 pli->pli_pathlen = pathlen;
550 pli->pli_linkno = *linkno;
552 /* Retry multiple times in case file is being moved */
553 while (tries-- && rc == -EAGAIN)
554 rc = mdd_path_current(env, pli);
556 /* For historical path lookup, the current links may not have existed
557 * at "recno" time. We must switch over to earlier links/parents
558 * by using the changelog records. If the earlier parent doesn't
559 * exist, we must search back through the changelog to reconstruct
560 * its parents, then check if it exists, etc.
561 * We may ignore this problem for the initial implementation and
562 * state that an "original" hardlink must still exist for us to find
563 * historic path name. */
564 if (pli->pli_recno != -1) {
565 rc = mdd_path_historic(env, pli);
567 *recno = pli->pli_currec;
568 /* Return next link index to caller */
569 *linkno = pli->pli_linkno;
577 int mdd_get_flags(const struct lu_env *env, struct mdd_object *obj)
579 struct lu_attr *la = &mdd_env_info(env)->mti_la;
583 rc = mdd_la_get(env, obj, la, BYPASS_CAPA);
585 mdd_flags_xlate(obj, la->la_flags);
586 if (S_ISDIR(la->la_mode) && la->la_nlink == 1)
587 obj->mod_flags |= MNLINK_OBJ;
592 /* get only inode attributes */
593 int mdd_iattr_get(const struct lu_env *env, struct mdd_object *mdd_obj,
599 if (ma->ma_valid & MA_INODE)
602 rc = mdd_la_get(env, mdd_obj, &ma->ma_attr,
603 mdd_object_capa(env, mdd_obj));
605 ma->ma_valid |= MA_INODE;
609 int mdd_get_default_md(struct mdd_object *mdd_obj, struct lov_mds_md *lmm)
611 struct lov_desc *ldesc;
612 struct mdd_device *mdd = mdo2mdd(&mdd_obj->mod_obj);
613 struct lov_user_md *lum = (struct lov_user_md*)lmm;
619 ldesc = &mdd->mdd_obd_dev->u.mds.mds_lov_desc;
620 LASSERT(ldesc != NULL);
622 lum->lmm_magic = LOV_MAGIC_V1;
623 lum->lmm_object_seq = LOV_OBJECT_GROUP_DEFAULT;
624 lum->lmm_pattern = ldesc->ld_pattern;
625 lum->lmm_stripe_size = ldesc->ld_default_stripe_size;
626 lum->lmm_stripe_count = ldesc->ld_default_stripe_count;
627 lum->lmm_stripe_offset = ldesc->ld_default_stripe_offset;
629 RETURN(sizeof(*lum));
632 /* get lov EA only */
633 static int __mdd_lmm_get(const struct lu_env *env,
634 struct mdd_object *mdd_obj, struct md_attr *ma)
639 if (ma->ma_valid & MA_LOV)
642 rc = mdd_get_md(env, mdd_obj, ma->ma_lmm, &ma->ma_lmm_size,
644 if (rc == 0 && (ma->ma_need & MA_LOV_DEF))
645 rc = mdd_get_default_md(mdd_obj, ma->ma_lmm);
647 ma->ma_lmm_size = rc;
648 ma->ma_valid |= MA_LOV;
654 int mdd_lmm_get_locked(const struct lu_env *env, struct mdd_object *mdd_obj,
660 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
661 rc = __mdd_lmm_get(env, mdd_obj, ma);
662 mdd_read_unlock(env, mdd_obj);
667 static int __mdd_lmv_get(const struct lu_env *env,
668 struct mdd_object *mdd_obj, struct md_attr *ma)
673 if (ma->ma_valid & MA_LMV)
676 rc = mdd_get_md(env, mdd_obj, ma->ma_lmv, &ma->ma_lmv_size,
679 ma->ma_valid |= MA_LMV;
685 static int __mdd_lma_get(const struct lu_env *env, struct mdd_object *mdd_obj,
688 struct mdd_thread_info *info = mdd_env_info(env);
689 struct lustre_mdt_attrs *lma =
690 (struct lustre_mdt_attrs *)info->mti_xattr_buf;
695 /* If all needed data are already valid, nothing to do */
696 if ((ma->ma_valid & (MA_HSM | MA_SOM)) ==
697 (ma->ma_need & (MA_HSM | MA_SOM)))
700 /* Read LMA from disk EA */
701 lma_size = sizeof(info->mti_xattr_buf);
702 rc = mdd_get_md(env, mdd_obj, lma, &lma_size, XATTR_NAME_LMA);
706 /* Useless to check LMA incompatibility because this is already done in
707 * osd_ea_fid_get(), and this will fail long before this code is
709 * So, if we are here, LMA is compatible.
712 lustre_lma_swab(lma);
714 /* Swab and copy LMA */
715 if (ma->ma_need & MA_HSM) {
716 if (lma->lma_compat & LMAC_HSM)
717 ma->ma_hsm_flags = lma->lma_flags & HSM_FLAGS_MASK;
719 ma->ma_hsm_flags = 0;
720 ma->ma_valid |= MA_HSM;
724 if (ma->ma_need & MA_SOM && lma->lma_compat & LMAC_SOM) {
725 LASSERT(ma->ma_som != NULL);
726 ma->ma_som->msd_ioepoch = lma->lma_ioepoch;
727 ma->ma_som->msd_size = lma->lma_som_size;
728 ma->ma_som->msd_blocks = lma->lma_som_blocks;
729 ma->ma_som->msd_mountid = lma->lma_som_mountid;
730 ma->ma_valid |= MA_SOM;
736 static int mdd_attr_get_internal(const struct lu_env *env,
737 struct mdd_object *mdd_obj,
743 if (ma->ma_need & MA_INODE)
744 rc = mdd_iattr_get(env, mdd_obj, ma);
746 if (rc == 0 && ma->ma_need & MA_LOV) {
747 if (S_ISREG(mdd_object_type(mdd_obj)) ||
748 S_ISDIR(mdd_object_type(mdd_obj)))
749 rc = __mdd_lmm_get(env, mdd_obj, ma);
751 if (rc == 0 && ma->ma_need & MA_LMV) {
752 if (S_ISDIR(mdd_object_type(mdd_obj)))
753 rc = __mdd_lmv_get(env, mdd_obj, ma);
755 if (rc == 0 && ma->ma_need & (MA_HSM | MA_SOM)) {
756 if (S_ISREG(mdd_object_type(mdd_obj)))
757 rc = __mdd_lma_get(env, mdd_obj, ma);
759 #ifdef CONFIG_FS_POSIX_ACL
760 if (rc == 0 && ma->ma_need & MA_ACL_DEF) {
761 if (S_ISDIR(mdd_object_type(mdd_obj)))
762 rc = mdd_def_acl_get(env, mdd_obj, ma);
765 CDEBUG(D_INODE, "after getattr rc = %d, ma_valid = "LPX64"\n",
770 int mdd_attr_get_internal_locked(const struct lu_env *env,
771 struct mdd_object *mdd_obj, struct md_attr *ma)
774 int needlock = ma->ma_need &
775 (MA_LOV | MA_LMV | MA_ACL_DEF | MA_HSM | MA_SOM);
778 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
779 rc = mdd_attr_get_internal(env, mdd_obj, ma);
781 mdd_read_unlock(env, mdd_obj);
786 * No permission check is needed.
788 static int mdd_attr_get(const struct lu_env *env, struct md_object *obj,
791 struct mdd_object *mdd_obj = md2mdd_obj(obj);
795 rc = mdd_attr_get_internal_locked(env, mdd_obj, ma);
800 * No permission check is needed.
802 static int mdd_xattr_get(const struct lu_env *env,
803 struct md_object *obj, struct lu_buf *buf,
806 struct mdd_object *mdd_obj = md2mdd_obj(obj);
811 LASSERT(mdd_object_exists(mdd_obj));
813 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
814 rc = mdo_xattr_get(env, mdd_obj, buf, name,
815 mdd_object_capa(env, mdd_obj));
816 mdd_read_unlock(env, mdd_obj);
822 * Permission check is done when open,
823 * no need check again.
825 static int mdd_readlink(const struct lu_env *env, struct md_object *obj,
828 struct mdd_object *mdd_obj = md2mdd_obj(obj);
829 struct dt_object *next;
834 LASSERT(mdd_object_exists(mdd_obj));
836 next = mdd_object_child(mdd_obj);
837 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
838 rc = next->do_body_ops->dbo_read(env, next, buf, &pos,
839 mdd_object_capa(env, mdd_obj));
840 mdd_read_unlock(env, mdd_obj);
845 * No permission check is needed.
847 static int mdd_xattr_list(const struct lu_env *env, struct md_object *obj,
850 struct mdd_object *mdd_obj = md2mdd_obj(obj);
855 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
856 rc = mdo_xattr_list(env, mdd_obj, buf, mdd_object_capa(env, mdd_obj));
857 mdd_read_unlock(env, mdd_obj);
862 int mdd_object_create_internal(const struct lu_env *env, struct mdd_object *p,
863 struct mdd_object *c, struct md_attr *ma,
864 struct thandle *handle,
865 const struct md_op_spec *spec)
867 struct lu_attr *attr = &ma->ma_attr;
868 struct dt_allocation_hint *hint = &mdd_env_info(env)->mti_hint;
869 struct dt_object_format *dof = &mdd_env_info(env)->mti_dof;
870 const struct dt_index_features *feat = spec->sp_feat;
874 if (!mdd_object_exists(c)) {
875 struct dt_object *next = mdd_object_child(c);
878 if (feat != &dt_directory_features && feat != NULL)
879 dof->dof_type = DFT_INDEX;
881 dof->dof_type = dt_mode_to_dft(attr->la_mode);
883 dof->u.dof_idx.di_feat = feat;
885 /* @hint will be initialized by underlying device. */
886 next->do_ops->do_ah_init(env, hint,
887 p ? mdd_object_child(p) : NULL,
888 attr->la_mode & S_IFMT);
890 rc = mdo_create_obj(env, c, attr, hint, dof, handle);
891 LASSERT(ergo(rc == 0, mdd_object_exists(c)));
899 * Make sure the ctime is increased only.
901 static inline int mdd_attr_check(const struct lu_env *env,
902 struct mdd_object *obj,
903 struct lu_attr *attr)
905 struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
909 if (attr->la_valid & LA_CTIME) {
910 rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
914 if (attr->la_ctime < tmp_la->la_ctime)
915 attr->la_valid &= ~(LA_MTIME | LA_CTIME);
916 else if (attr->la_valid == LA_CTIME &&
917 attr->la_ctime == tmp_la->la_ctime)
918 attr->la_valid &= ~LA_CTIME;
923 int mdd_attr_set_internal(const struct lu_env *env,
924 struct mdd_object *obj,
925 struct lu_attr *attr,
926 struct thandle *handle,
932 rc = mdo_attr_set(env, obj, attr, handle, mdd_object_capa(env, obj));
933 #ifdef CONFIG_FS_POSIX_ACL
934 if (!rc && (attr->la_valid & LA_MODE) && needacl)
935 rc = mdd_acl_chmod(env, obj, attr->la_mode, handle);
940 int mdd_attr_check_set_internal(const struct lu_env *env,
941 struct mdd_object *obj,
942 struct lu_attr *attr,
943 struct thandle *handle,
949 rc = mdd_attr_check(env, obj, attr);
954 rc = mdd_attr_set_internal(env, obj, attr, handle, needacl);
958 static int mdd_attr_set_internal_locked(const struct lu_env *env,
959 struct mdd_object *obj,
960 struct lu_attr *attr,
961 struct thandle *handle,
967 needacl = needacl && (attr->la_valid & LA_MODE);
969 mdd_write_lock(env, obj, MOR_TGT_CHILD);
970 rc = mdd_attr_set_internal(env, obj, attr, handle, needacl);
972 mdd_write_unlock(env, obj);
976 int mdd_attr_check_set_internal_locked(const struct lu_env *env,
977 struct mdd_object *obj,
978 struct lu_attr *attr,
979 struct thandle *handle,
985 needacl = needacl && (attr->la_valid & LA_MODE);
987 mdd_write_lock(env, obj, MOR_TGT_CHILD);
988 rc = mdd_attr_check_set_internal(env, obj, attr, handle, needacl);
990 mdd_write_unlock(env, obj);
994 int __mdd_xattr_set(const struct lu_env *env, struct mdd_object *obj,
995 const struct lu_buf *buf, const char *name,
996 int fl, struct thandle *handle)
998 struct lustre_capa *capa = mdd_object_capa(env, obj);
1002 if (buf->lb_buf && buf->lb_len > 0)
1003 rc = mdo_xattr_set(env, obj, buf, name, 0, handle, capa);
1004 else if (buf->lb_buf == NULL && buf->lb_len == 0)
1005 rc = mdo_xattr_del(env, obj, name, handle, capa);
1011 * This gives the same functionality as the code between
1012 * sys_chmod and inode_setattr
1013 * chown_common and inode_setattr
1014 * utimes and inode_setattr
1015 * This API is ported from mds_fix_attr but remove some unnecesssary stuff.
1017 static int mdd_fix_attr(const struct lu_env *env, struct mdd_object *obj,
1018 struct lu_attr *la, const struct md_attr *ma)
1020 struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
1021 struct md_ucred *uc;
1028 /* Do not permit change file type */
1029 if (la->la_valid & LA_TYPE)
1032 /* They should not be processed by setattr */
1033 if (la->la_valid & (LA_NLINK | LA_RDEV | LA_BLKSIZE))
1036 /* export destroy does not have ->le_ses, but we may want
1037 * to drop LUSTRE_SOM_FL. */
1043 rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
1047 if (la->la_valid == LA_CTIME) {
1048 if (!(ma->ma_attr_flags & MDS_PERM_BYPASS))
1049 /* This is only for set ctime when rename's source is
1051 rc = mdd_may_delete(env, NULL, obj,
1052 (struct md_attr *)ma, 1, 0);
1053 if (rc == 0 && la->la_ctime <= tmp_la->la_ctime)
1054 la->la_valid &= ~LA_CTIME;
1058 if (la->la_valid == LA_ATIME) {
1059 /* This is atime only set for read atime update on close. */
1060 if (la->la_atime <= tmp_la->la_atime +
1061 mdd_obj2mdd_dev(obj)->mdd_atime_diff)
1062 la->la_valid &= ~LA_ATIME;
1066 /* Check if flags change. */
1067 if (la->la_valid & LA_FLAGS) {
1068 unsigned int oldflags = 0;
1069 unsigned int newflags = la->la_flags &
1070 (LUSTRE_IMMUTABLE_FL | LUSTRE_APPEND_FL);
1072 if ((uc->mu_fsuid != tmp_la->la_uid) &&
1073 !mdd_capable(uc, CFS_CAP_FOWNER))
1076 /* XXX: the IMMUTABLE and APPEND_ONLY flags can
1077 * only be changed by the relevant capability. */
1078 if (mdd_is_immutable(obj))
1079 oldflags |= LUSTRE_IMMUTABLE_FL;
1080 if (mdd_is_append(obj))
1081 oldflags |= LUSTRE_APPEND_FL;
1082 if ((oldflags ^ newflags) &&
1083 !mdd_capable(uc, CFS_CAP_LINUX_IMMUTABLE))
1086 if (!S_ISDIR(tmp_la->la_mode))
1087 la->la_flags &= ~LUSTRE_DIRSYNC_FL;
1090 if ((mdd_is_immutable(obj) || mdd_is_append(obj)) &&
1091 (la->la_valid & ~LA_FLAGS) &&
1092 !(ma->ma_attr_flags & MDS_PERM_BYPASS))
1095 /* Check for setting the obj time. */
1096 if ((la->la_valid & (LA_MTIME | LA_ATIME | LA_CTIME)) &&
1097 !(la->la_valid & ~(LA_MTIME | LA_ATIME | LA_CTIME))) {
1098 if ((uc->mu_fsuid != tmp_la->la_uid) &&
1099 !mdd_capable(uc, CFS_CAP_FOWNER)) {
1100 rc = mdd_permission_internal_locked(env, obj, tmp_la,
1108 /* Make sure a caller can chmod. */
1109 if (la->la_valid & LA_MODE) {
1110 /* Bypass la_vaild == LA_MODE,
1111 * this is for changing file with SUID or SGID. */
1112 if ((la->la_valid & ~LA_MODE) &&
1113 !(ma->ma_attr_flags & MDS_PERM_BYPASS) &&
1114 (uc->mu_fsuid != tmp_la->la_uid) &&
1115 !mdd_capable(uc, CFS_CAP_FOWNER))
1118 if (la->la_mode == (cfs_umode_t) -1)
1119 la->la_mode = tmp_la->la_mode;
1121 la->la_mode = (la->la_mode & S_IALLUGO) |
1122 (tmp_la->la_mode & ~S_IALLUGO);
1124 /* Also check the setgid bit! */
1125 if (!lustre_in_group_p(uc, (la->la_valid & LA_GID) ?
1126 la->la_gid : tmp_la->la_gid) &&
1127 !mdd_capable(uc, CFS_CAP_FSETID))
1128 la->la_mode &= ~S_ISGID;
1130 la->la_mode = tmp_la->la_mode;
1133 /* Make sure a caller can chown. */
1134 if (la->la_valid & LA_UID) {
1135 if (la->la_uid == (uid_t) -1)
1136 la->la_uid = tmp_la->la_uid;
1137 if (((uc->mu_fsuid != tmp_la->la_uid) ||
1138 (la->la_uid != tmp_la->la_uid)) &&
1139 !mdd_capable(uc, CFS_CAP_CHOWN))
1142 /* If the user or group of a non-directory has been
1143 * changed by a non-root user, remove the setuid bit.
1144 * 19981026 David C Niemi <niemi@tux.org>
1146 * Changed this to apply to all users, including root,
1147 * to avoid some races. This is the behavior we had in
1148 * 2.0. The check for non-root was definitely wrong
1149 * for 2.2 anyway, as it should have been using
1150 * CAP_FSETID rather than fsuid -- 19990830 SD. */
1151 if (((tmp_la->la_mode & S_ISUID) == S_ISUID) &&
1152 !S_ISDIR(tmp_la->la_mode)) {
1153 la->la_mode &= ~S_ISUID;
1154 la->la_valid |= LA_MODE;
1158 /* Make sure caller can chgrp. */
1159 if (la->la_valid & LA_GID) {
1160 if (la->la_gid == (gid_t) -1)
1161 la->la_gid = tmp_la->la_gid;
1162 if (((uc->mu_fsuid != tmp_la->la_uid) ||
1163 ((la->la_gid != tmp_la->la_gid) &&
1164 !lustre_in_group_p(uc, la->la_gid))) &&
1165 !mdd_capable(uc, CFS_CAP_CHOWN))
1168 /* Likewise, if the user or group of a non-directory
1169 * has been changed by a non-root user, remove the
1170 * setgid bit UNLESS there is no group execute bit
1171 * (this would be a file marked for mandatory
1172 * locking). 19981026 David C Niemi <niemi@tux.org>
1174 * Removed the fsuid check (see the comment above) --
1176 if (((tmp_la->la_mode & (S_ISGID | S_IXGRP)) ==
1177 (S_ISGID | S_IXGRP)) && !S_ISDIR(tmp_la->la_mode)) {
1178 la->la_mode &= ~S_ISGID;
1179 la->la_valid |= LA_MODE;
1183 /* For both Size-on-MDS case and truncate case,
1184 * "la->la_valid & (LA_SIZE | LA_BLOCKS)" are ture.
1185 * We distinguish them by "ma->ma_attr_flags & MDS_SOM".
1186 * For SOM case, it is true, the MAY_WRITE perm has been checked
1187 * when open, no need check again. For truncate case, it is false,
1188 * the MAY_WRITE perm should be checked here. */
1189 if (ma->ma_attr_flags & MDS_SOM) {
1190 /* For the "Size-on-MDS" setattr update, merge coming
1191 * attributes with the set in the inode. BUG 10641 */
1192 if ((la->la_valid & LA_ATIME) &&
1193 (la->la_atime <= tmp_la->la_atime))
1194 la->la_valid &= ~LA_ATIME;
1196 /* OST attributes do not have a priority over MDS attributes,
1197 * so drop times if ctime is equal. */
1198 if ((la->la_valid & LA_CTIME) &&
1199 (la->la_ctime <= tmp_la->la_ctime))
1200 la->la_valid &= ~(LA_MTIME | LA_CTIME);
1202 if (la->la_valid & (LA_SIZE | LA_BLOCKS)) {
1203 if (!((ma->ma_attr_flags & MDS_OPEN_OWNEROVERRIDE) &&
1204 (uc->mu_fsuid == tmp_la->la_uid)) &&
1205 !(ma->ma_attr_flags & MDS_PERM_BYPASS)) {
1206 rc = mdd_permission_internal_locked(env, obj,
1213 if (la->la_valid & LA_CTIME) {
1214 /* The pure setattr, it has the priority over what is
1215 * already set, do not drop it if ctime is equal. */
1216 if (la->la_ctime < tmp_la->la_ctime)
1217 la->la_valid &= ~(LA_ATIME | LA_MTIME |
1225 /** Store a data change changelog record
1226 * If this fails, we must fail the whole transaction; we don't
1227 * want the change to commit without the log entry.
1228 * \param mdd_obj - mdd_object of change
1229 * \param handle - transacion handle
1231 static int mdd_changelog_data_store(const struct lu_env *env,
1232 struct mdd_device *mdd,
1233 enum changelog_rec_type type,
1234 struct mdd_object *mdd_obj,
1235 struct thandle *handle)
1237 const struct lu_fid *tfid = mdo2fid(mdd_obj);
1238 struct llog_changelog_rec *rec;
1243 if (!(mdd->mdd_cl.mc_flags & CLM_ON))
1246 LASSERT(handle != NULL);
1247 LASSERT(mdd_obj != NULL);
1249 if ((type == CL_TIME) &&
1250 cfs_time_before_64(mdd->mdd_cl.mc_starttime, mdd_obj->mod_cltime)) {
1251 /* Don't need multiple updates in this log */
1252 /* Don't check under lock - no big deal if we get an extra
1257 reclen = llog_data_len(sizeof(*rec));
1258 buf = mdd_buf_alloc(env, reclen);
1259 if (buf->lb_buf == NULL)
1261 rec = (struct llog_changelog_rec *)buf->lb_buf;
1263 rec->cr.cr_flags = CLF_VERSION;
1264 rec->cr.cr_type = (__u32)type;
1265 rec->cr.cr_tfid = *tfid;
1266 rec->cr.cr_namelen = 0;
1267 mdd_obj->mod_cltime = cfs_time_current_64();
1269 rc = mdd_changelog_llog_write(mdd, rec, handle);
1271 CERROR("changelog failed: rc=%d op%d t"DFID"\n",
1272 rc, type, PFID(tfid));
1280 * Should be called with write lock held.
1282 * \see mdd_lma_set_locked().
1284 static int __mdd_lma_set(const struct lu_env *env, struct mdd_object *mdd_obj,
1285 const struct md_attr *ma, struct thandle *handle)
1287 struct mdd_thread_info *info = mdd_env_info(env);
1289 struct lustre_mdt_attrs *lma =
1290 (struct lustre_mdt_attrs *) info->mti_xattr_buf;
1291 int lmasize = sizeof(struct lustre_mdt_attrs);
1296 /* Either HSM or SOM part is not valid, we need to read it before */
1297 if ((!ma->ma_valid) & (MA_HSM | MA_SOM)) {
1298 rc = mdd_get_md(env, mdd_obj, lma, &lmasize, XATTR_NAME_LMA);
1302 lustre_lma_swab(lma);
1304 memset(lma, 0, lmasize);
1308 if (ma->ma_valid & MA_HSM) {
1309 lma->lma_flags |= ma->ma_hsm_flags & HSM_FLAGS_MASK;
1310 lma->lma_compat |= LMAC_HSM;
1314 if (ma->ma_valid & MA_SOM) {
1315 LASSERT(ma->ma_som != NULL);
1316 if (ma->ma_som->msd_ioepoch == IOEPOCH_INVAL) {
1317 lma->lma_compat &= ~LMAC_SOM;
1319 lma->lma_compat |= LMAC_SOM;
1320 lma->lma_ioepoch = ma->ma_som->msd_ioepoch;
1321 lma->lma_som_size = ma->ma_som->msd_size;
1322 lma->lma_som_blocks = ma->ma_som->msd_blocks;
1323 lma->lma_som_mountid = ma->ma_som->msd_mountid;
1328 memcpy(&lma->lma_self_fid, mdo2fid(mdd_obj), sizeof(lma->lma_self_fid));
1330 lustre_lma_swab(lma);
1331 buf = mdd_buf_get(env, lma, lmasize);
1332 rc = __mdd_xattr_set(env, mdd_obj, buf, XATTR_NAME_LMA, 0, handle);
1338 * Save LMA extended attributes with data from \a ma.
1340 * HSM and Size-On-MDS data will be extracted from \ma if they are valid, if
1341 * not, LMA EA will be first read from disk, modified and write back.
1344 static int mdd_lma_set_locked(const struct lu_env *env,
1345 struct mdd_object *mdd_obj,
1346 const struct md_attr *ma, struct thandle *handle)
1350 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1351 rc = __mdd_lma_set(env, mdd_obj, ma, handle);
1352 mdd_write_unlock(env, mdd_obj);
1356 /* set attr and LOV EA at once, return updated attr */
1357 static int mdd_attr_set(const struct lu_env *env, struct md_object *obj,
1358 const struct md_attr *ma)
1360 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1361 struct mdd_device *mdd = mdo2mdd(obj);
1362 struct thandle *handle;
1363 struct lov_mds_md *lmm = NULL;
1364 struct llog_cookie *logcookies = NULL;
1365 int rc, lmm_size = 0, cookie_size = 0;
1366 struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
1367 #ifdef HAVE_QUOTA_SUPPORT
1368 struct obd_device *obd = mdd->mdd_obd_dev;
1369 struct mds_obd *mds = &obd->u.mds;
1370 unsigned int qnids[MAXQUOTAS] = { 0, 0 };
1371 unsigned int qoids[MAXQUOTAS] = { 0, 0 };
1372 int quota_opc = 0, block_count = 0;
1373 int inode_pending[MAXQUOTAS] = { 0, 0 };
1374 int block_pending[MAXQUOTAS] = { 0, 0 };
1378 mdd_setattr_txn_param_build(env, obj, (struct md_attr *)ma,
1379 MDD_TXN_ATTR_SET_OP);
1380 handle = mdd_trans_start(env, mdd);
1382 RETURN(PTR_ERR(handle));
1383 /*TODO: add lock here*/
1384 /* start a log jounal handle if needed */
1385 if (S_ISREG(mdd_object_type(mdd_obj)) &&
1386 ma->ma_attr.la_valid & (LA_UID | LA_GID)) {
1387 lmm_size = mdd_lov_mdsize(env, mdd);
1388 lmm = mdd_max_lmm_get(env, mdd);
1390 GOTO(cleanup, rc = -ENOMEM);
1392 rc = mdd_get_md_locked(env, mdd_obj, lmm, &lmm_size,
1399 if (ma->ma_attr.la_valid & (LA_MTIME | LA_CTIME))
1400 CDEBUG(D_INODE, "setting mtime "LPU64", ctime "LPU64"\n",
1401 ma->ma_attr.la_mtime, ma->ma_attr.la_ctime);
1403 *la_copy = ma->ma_attr;
1404 rc = mdd_fix_attr(env, mdd_obj, la_copy, ma);
1408 #ifdef HAVE_QUOTA_SUPPORT
1409 if (mds->mds_quota && la_copy->la_valid & (LA_UID | LA_GID)) {
1410 struct obd_export *exp = md_quota(env)->mq_exp;
1411 struct lu_attr *la_tmp = &mdd_env_info(env)->mti_la;
1413 rc = mdd_la_get(env, mdd_obj, la_tmp, BYPASS_CAPA);
1415 quota_opc = FSFILT_OP_SETATTR;
1416 mdd_quota_wrapper(la_copy, qnids);
1417 mdd_quota_wrapper(la_tmp, qoids);
1418 /* get file quota for new owner */
1419 lquota_chkquota(mds_quota_interface_ref, obd, exp,
1420 qnids, inode_pending, 1, NULL, 0,
1422 block_count = (la_tmp->la_blocks + 7) >> 3;
1425 mdd_data_get(env, mdd_obj, &data);
1426 /* get block quota for new owner */
1427 lquota_chkquota(mds_quota_interface_ref, obd,
1428 exp, qnids, block_pending,
1430 LQUOTA_FLAGS_BLK, data, 1);
1436 if (la_copy->la_valid & LA_FLAGS) {
1437 rc = mdd_attr_set_internal_locked(env, mdd_obj, la_copy,
1440 mdd_flags_xlate(mdd_obj, la_copy->la_flags);
1441 } else if (la_copy->la_valid) { /* setattr */
1442 rc = mdd_attr_set_internal_locked(env, mdd_obj, la_copy,
1444 /* journal chown/chgrp in llog, just like unlink */
1445 if (rc == 0 && lmm_size){
1446 cookie_size = mdd_lov_cookiesize(env, mdd);
1447 logcookies = mdd_max_cookie_get(env, mdd);
1448 if (logcookies == NULL)
1449 GOTO(cleanup, rc = -ENOMEM);
1451 if (mdd_setattr_log(env, mdd, ma, lmm, lmm_size,
1452 logcookies, cookie_size) <= 0)
1457 if (rc == 0 && ma->ma_valid & MA_LOV) {
1460 mode = mdd_object_type(mdd_obj);
1461 if (S_ISREG(mode) || S_ISDIR(mode)) {
1462 rc = mdd_lsm_sanity_check(env, mdd_obj);
1466 rc = mdd_lov_set_md(env, NULL, mdd_obj, ma->ma_lmm,
1467 ma->ma_lmm_size, handle, 1);
1471 if (rc == 0 && ma->ma_valid & (MA_HSM | MA_SOM)) {
1474 mode = mdd_object_type(mdd_obj);
1476 rc = mdd_lma_set_locked(env, mdd_obj, ma, handle);
1481 rc = mdd_changelog_data_store(env, mdd,
1482 (ma->ma_attr.la_valid &
1483 ~(LA_MTIME|LA_CTIME|LA_ATIME)) ?
1484 CL_SETATTR : CL_TIME,
1486 mdd_trans_stop(env, mdd, rc, handle);
1487 if (rc == 0 && (lmm != NULL && lmm_size > 0 )) {
1488 /*set obd attr, if needed*/
1489 rc = mdd_lov_setattr_async(env, mdd_obj, lmm, lmm_size,
1492 #ifdef HAVE_QUOTA_SUPPORT
1494 lquota_pending_commit(mds_quota_interface_ref, obd, qnids,
1496 lquota_pending_commit(mds_quota_interface_ref, obd, qnids,
1498 /* Trigger dqrel/dqacq for original owner and new owner.
1499 * If failed, the next call for lquota_chkquota will
1501 lquota_adjust(mds_quota_interface_ref, obd, qnids, qoids, rc,
1508 int mdd_xattr_set_txn(const struct lu_env *env, struct mdd_object *obj,
1509 const struct lu_buf *buf, const char *name, int fl,
1510 struct thandle *handle)
1515 mdd_write_lock(env, obj, MOR_TGT_CHILD);
1516 rc = __mdd_xattr_set(env, obj, buf, name, fl, handle);
1517 mdd_write_unlock(env, obj);
1522 static int mdd_xattr_sanity_check(const struct lu_env *env,
1523 struct mdd_object *obj)
1525 struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
1526 struct md_ucred *uc = md_ucred(env);
1530 if (mdd_is_immutable(obj) || mdd_is_append(obj))
1533 rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
1537 if ((uc->mu_fsuid != tmp_la->la_uid) &&
1538 !mdd_capable(uc, CFS_CAP_FOWNER))
1545 * The caller should guarantee to update the object ctime
1546 * after xattr_set if needed.
1548 static int mdd_xattr_set(const struct lu_env *env, struct md_object *obj,
1549 const struct lu_buf *buf, const char *name,
1552 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1553 struct mdd_device *mdd = mdo2mdd(obj);
1554 struct thandle *handle;
1558 rc = mdd_xattr_sanity_check(env, mdd_obj);
1562 mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
1563 /* security-replated changes may require sync */
1564 if (!strcmp(name, XATTR_NAME_ACL_ACCESS) &&
1565 mdd->mdd_sync_permission == 1)
1566 txn_param_sync(&mdd_env_info(env)->mti_param);
1568 handle = mdd_trans_start(env, mdd);
1570 RETURN(PTR_ERR(handle));
1572 rc = mdd_xattr_set_txn(env, mdd_obj, buf, name, fl, handle);
1574 /* Only record user xattr changes */
1575 if ((rc == 0) && (mdd->mdd_cl.mc_flags & CLM_ON) &&
1576 (strncmp("user.", name, 5) == 0))
1577 rc = mdd_changelog_data_store(env, mdd, CL_XATTR, mdd_obj,
1579 mdd_trans_stop(env, mdd, rc, handle);
1585 * The caller should guarantee to update the object ctime
1586 * after xattr_set if needed.
1588 int mdd_xattr_del(const struct lu_env *env, struct md_object *obj,
1591 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1592 struct mdd_device *mdd = mdo2mdd(obj);
1593 struct thandle *handle;
1597 rc = mdd_xattr_sanity_check(env, mdd_obj);
1601 mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
1602 handle = mdd_trans_start(env, mdd);
1604 RETURN(PTR_ERR(handle));
1606 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1607 rc = mdo_xattr_del(env, mdd_obj, name, handle,
1608 mdd_object_capa(env, mdd_obj));
1609 mdd_write_unlock(env, mdd_obj);
1611 /* Only record user xattr changes */
1612 if ((rc == 0) && (mdd->mdd_cl.mc_flags & CLM_ON) &&
1613 (strncmp("user.", name, 5) != 0))
1614 rc = mdd_changelog_data_store(env, mdd, CL_XATTR, mdd_obj,
1617 mdd_trans_stop(env, mdd, rc, handle);
1622 /* partial unlink */
1623 static int mdd_ref_del(const struct lu_env *env, struct md_object *obj,
1626 struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
1627 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1628 struct mdd_device *mdd = mdo2mdd(obj);
1629 struct thandle *handle;
1630 #ifdef HAVE_QUOTA_SUPPORT
1631 struct obd_device *obd = mdd->mdd_obd_dev;
1632 struct mds_obd *mds = &obd->u.mds;
1633 unsigned int qids[MAXQUOTAS] = { 0, 0 };
1640 * Check -ENOENT early here because we need to get object type
1641 * to calculate credits before transaction start
1643 if (!mdd_object_exists(mdd_obj))
1646 LASSERT(mdd_object_exists(mdd_obj) > 0);
1648 rc = mdd_log_txn_param_build(env, obj, ma, MDD_TXN_UNLINK_OP);
1652 handle = mdd_trans_start(env, mdd);
1656 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1658 rc = mdd_unlink_sanity_check(env, NULL, mdd_obj, ma);
1662 __mdd_ref_del(env, mdd_obj, handle, 0);
1664 if (S_ISDIR(lu_object_attr(&obj->mo_lu))) {
1666 __mdd_ref_del(env, mdd_obj, handle, 1);
1669 LASSERT(ma->ma_attr.la_valid & LA_CTIME);
1670 la_copy->la_ctime = ma->ma_attr.la_ctime;
1672 la_copy->la_valid = LA_CTIME;
1673 rc = mdd_attr_check_set_internal(env, mdd_obj, la_copy, handle, 0);
1677 rc = mdd_finish_unlink(env, mdd_obj, ma, handle);
1678 #ifdef HAVE_QUOTA_SUPPORT
1679 if (mds->mds_quota && ma->ma_valid & MA_INODE &&
1680 ma->ma_attr.la_nlink == 0 && mdd_obj->mod_count == 0) {
1681 quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
1682 mdd_quota_wrapper(&ma->ma_attr, qids);
1689 mdd_write_unlock(env, mdd_obj);
1690 mdd_trans_stop(env, mdd, rc, handle);
1691 #ifdef HAVE_QUOTA_SUPPORT
1693 /* Trigger dqrel on the owner of child. If failed,
1694 * the next call for lquota_chkquota will process it */
1695 lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
1701 /* partial operation */
1702 static int mdd_oc_sanity_check(const struct lu_env *env,
1703 struct mdd_object *obj,
1709 switch (ma->ma_attr.la_mode & S_IFMT) {
1726 static int mdd_object_create(const struct lu_env *env,
1727 struct md_object *obj,
1728 const struct md_op_spec *spec,
1732 struct mdd_device *mdd = mdo2mdd(obj);
1733 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1734 const struct lu_fid *pfid = spec->u.sp_pfid;
1735 struct thandle *handle;
1736 #ifdef HAVE_QUOTA_SUPPORT
1737 struct obd_device *obd = mdd->mdd_obd_dev;
1738 struct obd_export *exp = md_quota(env)->mq_exp;
1739 struct mds_obd *mds = &obd->u.mds;
1740 unsigned int qids[MAXQUOTAS] = { 0, 0 };
1741 int quota_opc = 0, block_count = 0;
1742 int inode_pending[MAXQUOTAS] = { 0, 0 };
1743 int block_pending[MAXQUOTAS] = { 0, 0 };
1748 #ifdef HAVE_QUOTA_SUPPORT
1749 if (mds->mds_quota) {
1750 quota_opc = FSFILT_OP_CREATE_PARTIAL_CHILD;
1751 mdd_quota_wrapper(&ma->ma_attr, qids);
1752 /* get file quota for child */
1753 lquota_chkquota(mds_quota_interface_ref, obd, exp,
1754 qids, inode_pending, 1, NULL, 0,
1756 switch (ma->ma_attr.la_mode & S_IFMT) {
1765 /* get block quota for child */
1767 lquota_chkquota(mds_quota_interface_ref, obd, exp,
1768 qids, block_pending, block_count,
1769 NULL, LQUOTA_FLAGS_BLK, NULL, 0);
1773 mdd_txn_param_build(env, mdd, MDD_TXN_OBJECT_CREATE_OP);
1774 handle = mdd_trans_start(env, mdd);
1776 GOTO(out_pending, rc = PTR_ERR(handle));
1778 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1779 rc = mdd_oc_sanity_check(env, mdd_obj, ma);
1783 rc = mdd_object_create_internal(env, NULL, mdd_obj, ma, handle, spec);
1787 if (spec->sp_cr_flags & MDS_CREATE_SLAVE_OBJ) {
1788 /* If creating the slave object, set slave EA here. */
1789 int lmv_size = spec->u.sp_ea.eadatalen;
1790 struct lmv_stripe_md *lmv;
1792 lmv = (struct lmv_stripe_md *)spec->u.sp_ea.eadata;
1793 LASSERT(lmv != NULL && lmv_size > 0);
1795 rc = __mdd_xattr_set(env, mdd_obj,
1796 mdd_buf_get_const(env, lmv, lmv_size),
1797 XATTR_NAME_LMV, 0, handle);
1801 rc = mdd_attr_set_internal(env, mdd_obj, &ma->ma_attr,
1804 #ifdef CONFIG_FS_POSIX_ACL
1805 if (spec->sp_cr_flags & MDS_CREATE_RMT_ACL) {
1806 struct lu_buf *buf = &mdd_env_info(env)->mti_buf;
1808 buf->lb_buf = (void *)spec->u.sp_ea.eadata;
1809 buf->lb_len = spec->u.sp_ea.eadatalen;
1810 if ((buf->lb_len > 0) && (buf->lb_buf != NULL)) {
1811 rc = __mdd_acl_init(env, mdd_obj, buf,
1812 &ma->ma_attr.la_mode,
1817 ma->ma_attr.la_valid |= LA_MODE;
1820 pfid = spec->u.sp_ea.fid;
1823 rc = mdd_object_initialize(env, pfid, NULL, mdd_obj, ma, handle,
1829 rc = mdd_attr_get_internal(env, mdd_obj, ma);
1830 mdd_write_unlock(env, mdd_obj);
1832 mdd_trans_stop(env, mdd, rc, handle);
1834 #ifdef HAVE_QUOTA_SUPPORT
1836 lquota_pending_commit(mds_quota_interface_ref, obd, qids,
1838 lquota_pending_commit(mds_quota_interface_ref, obd, qids,
1840 /* Trigger dqacq on the owner of child. If failed,
1841 * the next call for lquota_chkquota will process it. */
1842 lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
1850 static int mdd_ref_add(const struct lu_env *env, struct md_object *obj,
1851 const struct md_attr *ma)
1853 struct lu_attr *la_copy = &mdd_env_info(env)->mti_la_for_fix;
1854 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1855 struct mdd_device *mdd = mdo2mdd(obj);
1856 struct thandle *handle;
1860 mdd_txn_param_build(env, mdd, MDD_TXN_XATTR_SET_OP);
1861 handle = mdd_trans_start(env, mdd);
1865 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1866 rc = mdd_link_sanity_check(env, NULL, NULL, mdd_obj);
1868 __mdd_ref_add(env, mdd_obj, handle);
1869 mdd_write_unlock(env, mdd_obj);
1871 LASSERT(ma->ma_attr.la_valid & LA_CTIME);
1872 la_copy->la_ctime = ma->ma_attr.la_ctime;
1874 la_copy->la_valid = LA_CTIME;
1875 rc = mdd_attr_check_set_internal_locked(env, mdd_obj, la_copy,
1878 mdd_trans_stop(env, mdd, 0, handle);
1884 * do NOT or the MAY_*'s, you'll get the weakest
1886 int accmode(const struct lu_env *env, struct lu_attr *la, int flags)
1890 /* Sadly, NFSD reopens a file repeatedly during operation, so the
1891 * "acc_mode = 0" allowance for newly-created files isn't honoured.
1892 * NFSD uses the MDS_OPEN_OWNEROVERRIDE flag to say that a file
1893 * owner can write to a file even if it is marked readonly to hide
1894 * its brokenness. (bug 5781) */
1895 if (flags & MDS_OPEN_OWNEROVERRIDE) {
1896 struct md_ucred *uc = md_ucred(env);
1898 if ((uc == NULL) || (uc->mu_valid == UCRED_INIT) ||
1899 (la->la_uid == uc->mu_fsuid))
1903 if (flags & FMODE_READ)
1905 if (flags & (FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
1907 if (flags & MDS_FMODE_EXEC)
1912 static int mdd_open_sanity_check(const struct lu_env *env,
1913 struct mdd_object *obj, int flag)
1915 struct lu_attr *tmp_la = &mdd_env_info(env)->mti_la;
1920 if (mdd_is_dead_obj(obj))
1923 rc = mdd_la_get(env, obj, tmp_la, BYPASS_CAPA);
1927 if (S_ISLNK(tmp_la->la_mode))
1930 mode = accmode(env, tmp_la, flag);
1932 if (S_ISDIR(tmp_la->la_mode) && (mode & MAY_WRITE))
1935 if (!(flag & MDS_OPEN_CREATED)) {
1936 rc = mdd_permission_internal(env, obj, tmp_la, mode);
1941 if (S_ISFIFO(tmp_la->la_mode) || S_ISSOCK(tmp_la->la_mode) ||
1942 S_ISBLK(tmp_la->la_mode) || S_ISCHR(tmp_la->la_mode))
1943 flag &= ~MDS_OPEN_TRUNC;
1945 /* For writing append-only file must open it with append mode. */
1946 if (mdd_is_append(obj)) {
1947 if ((flag & FMODE_WRITE) && !(flag & MDS_OPEN_APPEND))
1949 if (flag & MDS_OPEN_TRUNC)
1955 * Now, flag -- O_NOATIME does not be packed by client.
1957 if (flag & O_NOATIME) {
1958 struct md_ucred *uc = md_ucred(env);
1960 if (uc && ((uc->mu_valid == UCRED_OLD) ||
1961 (uc->mu_valid == UCRED_NEW)) &&
1962 (uc->mu_fsuid != tmp_la->la_uid) &&
1963 !mdd_capable(uc, CFS_CAP_FOWNER))
1971 static int mdd_open(const struct lu_env *env, struct md_object *obj,
1974 struct mdd_object *mdd_obj = md2mdd_obj(obj);
1977 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
1979 rc = mdd_open_sanity_check(env, mdd_obj, flags);
1981 mdd_obj->mod_count++;
1983 mdd_write_unlock(env, mdd_obj);
1987 /* return md_attr back,
1988 * if it is last unlink then return lov ea + llog cookie*/
1989 int mdd_object_kill(const struct lu_env *env, struct mdd_object *obj,
1995 if (S_ISREG(mdd_object_type(obj))) {
1996 /* Return LOV & COOKIES unconditionally here. We clean evth up.
1997 * Caller must be ready for that. */
1999 rc = __mdd_lmm_get(env, obj, ma);
2000 if ((ma->ma_valid & MA_LOV))
2001 rc = mdd_unlink_log(env, mdo2mdd(&obj->mod_obj),
2008 * No permission check is needed.
2010 static int mdd_close(const struct lu_env *env, struct md_object *obj,
2013 struct mdd_object *mdd_obj = md2mdd_obj(obj);
2014 struct mdd_device *mdd = mdo2mdd(obj);
2015 struct thandle *handle;
2019 #ifdef HAVE_QUOTA_SUPPORT
2020 struct obd_device *obd = mdo2mdd(obj)->mdd_obd_dev;
2021 struct mds_obd *mds = &obd->u.mds;
2022 unsigned int qids[MAXQUOTAS] = { 0, 0 };
2027 rc = mdd_log_txn_param_build(env, obj, ma, MDD_TXN_UNLINK_OP);
2030 handle = mdd_trans_start(env, mdo2mdd(obj));
2032 RETURN(PTR_ERR(handle));
2034 mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
2035 /* release open count */
2036 mdd_obj->mod_count --;
2038 if (mdd_obj->mod_count == 0 && mdd_obj->mod_flags & ORPHAN_OBJ) {
2039 /* remove link to object from orphan index */
2040 rc = __mdd_orphan_del(env, mdd_obj, handle);
2042 CDEBUG(D_HA, "Object "DFID" is deleted from orphan "
2043 "list, OSS objects to be destroyed.\n",
2044 PFID(mdd_object_fid(mdd_obj)));
2046 CERROR("Object "DFID" can not be deleted from orphan "
2047 "list, maybe cause OST objects can not be "
2048 "destroyed (err: %d).\n",
2049 PFID(mdd_object_fid(mdd_obj)), rc);
2050 /* If object was not deleted from orphan list, do not
2051 * destroy OSS objects, which will be done when next
2057 rc = mdd_iattr_get(env, mdd_obj, ma);
2058 /* Object maybe not in orphan list originally, it is rare case for
2059 * mdd_finish_unlink() failure. */
2060 if (rc == 0 && ma->ma_attr.la_nlink == 0) {
2061 #ifdef HAVE_QUOTA_SUPPORT
2062 if (mds->mds_quota) {
2063 quota_opc = FSFILT_OP_UNLINK_PARTIAL_CHILD;
2064 mdd_quota_wrapper(&ma->ma_attr, qids);
2067 /* MDS_CLOSE_CLEANUP means destroy OSS objects by MDS. */
2068 if (ma->ma_valid & MA_FLAGS &&
2069 ma->ma_attr_flags & MDS_CLOSE_CLEANUP) {
2070 rc = mdd_lov_destroy(env, mdd, mdd_obj, &ma->ma_attr);
2072 rc = mdd_object_kill(env, mdd_obj, ma);
2078 CERROR("Error when prepare to delete Object "DFID" , "
2079 "which will cause OST objects can not be "
2080 "destroyed.\n", PFID(mdd_object_fid(mdd_obj)));
2086 ma->ma_valid &= ~(MA_LOV | MA_COOKIE);
2088 mdd_write_unlock(env, mdd_obj);
2089 mdd_trans_stop(env, mdo2mdd(obj), rc, handle);
2090 #ifdef HAVE_QUOTA_SUPPORT
2092 /* Trigger dqrel on the owner of child. If failed,
2093 * the next call for lquota_chkquota will process it */
2094 lquota_adjust(mds_quota_interface_ref, obd, qids, 0, rc,
2101 * Permission check is done when open,
2102 * no need check again.
2104 static int mdd_readpage_sanity_check(const struct lu_env *env,
2105 struct mdd_object *obj)
2107 struct dt_object *next = mdd_object_child(obj);
2111 if (S_ISDIR(mdd_object_type(obj)) && dt_try_as_dir(env, next))
2119 static int mdd_dir_page_build(const struct lu_env *env, struct mdd_device *mdd,
2120 int first, void *area, int nob,
2121 const struct dt_it_ops *iops, struct dt_it *it,
2122 __u64 *start, __u64 *end,
2123 struct lu_dirent **last, __u32 attr)
2127 struct lu_dirent *ent;
2130 memset(area, 0, sizeof (struct lu_dirpage));
2131 area += sizeof (struct lu_dirpage);
2132 nob -= sizeof (struct lu_dirpage);
2140 len = iops->key_size(env, it);
2142 /* IAM iterator can return record with zero len. */
2146 hash = iops->store(env, it);
2147 if (unlikely(first)) {
2152 /* calculate max space required for lu_dirent */
2153 recsize = lu_dirent_calc_size(len, attr);
2155 if (nob >= recsize) {
2156 result = iops->rec(env, it, ent, attr);
2157 if (result == -ESTALE)
2162 /* osd might not able to pack all attributes,
2163 * so recheck rec length */
2164 recsize = le16_to_cpu(ent->lde_reclen);
2167 * record doesn't fit into page, enlarge previous one.
2170 (*last)->lde_reclen =
2171 cpu_to_le16(le16_to_cpu((*last)->lde_reclen) +
2180 ent = (void *)ent + recsize;
2184 result = iops->next(env, it);
2185 if (result == -ESTALE)
2187 } while (result == 0);
2194 static int __mdd_readpage(const struct lu_env *env, struct mdd_object *obj,
2195 const struct lu_rdpg *rdpg)
2198 struct dt_object *next = mdd_object_child(obj);
2199 const struct dt_it_ops *iops;
2201 struct lu_dirent *last = NULL;
2202 struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
2209 LASSERT(rdpg->rp_pages != NULL);
2210 LASSERT(next->do_index_ops != NULL);
2212 if (rdpg->rp_count <= 0)
2216 * iterate through directory and fill pages from @rdpg
2218 iops = &next->do_index_ops->dio_it;
2219 it = iops->init(env, next, mdd_object_capa(env, obj));
2223 rc = iops->load(env, it, rdpg->rp_hash);
2227 * Iterator didn't find record with exactly the key requested.
2229 * It is currently either
2231 * - positioned above record with key less than
2232 * requested---skip it.
2234 * - or not positioned at all (is in IAM_IT_SKEWED
2235 * state)---position it on the next item.
2237 rc = iops->next(env, it);
2242 * At this point and across for-loop:
2244 * rc == 0 -> ok, proceed.
2245 * rc > 0 -> end of directory.
2248 for (i = 0, nob = rdpg->rp_count; rc == 0 && nob > 0;
2249 i++, nob -= CFS_PAGE_SIZE) {
2250 LASSERT(i < rdpg->rp_npages);
2251 pg = rdpg->rp_pages[i];
2252 rc = mdd_dir_page_build(env, mdd, !i, cfs_kmap(pg),
2253 min_t(int, nob, CFS_PAGE_SIZE), iops,
2254 it, &hash_start, &hash_end, &last,
2256 if (rc != 0 || i == rdpg->rp_npages - 1) {
2258 last->lde_reclen = 0;
2266 hash_end = DIR_END_OFF;
2270 struct lu_dirpage *dp;
2272 dp = cfs_kmap(rdpg->rp_pages[0]);
2273 dp->ldp_hash_start = cpu_to_le64(rdpg->rp_hash);
2274 dp->ldp_hash_end = cpu_to_le64(hash_end);
2277 * No pages were processed, mark this.
2279 dp->ldp_flags |= LDF_EMPTY;
2281 dp->ldp_flags = cpu_to_le32(dp->ldp_flags);
2282 cfs_kunmap(rdpg->rp_pages[0]);
2285 iops->fini(env, it);
2290 int mdd_readpage(const struct lu_env *env, struct md_object *obj,
2291 const struct lu_rdpg *rdpg)
2293 struct mdd_object *mdd_obj = md2mdd_obj(obj);
2297 LASSERT(mdd_object_exists(mdd_obj));
2299 mdd_read_lock(env, mdd_obj, MOR_TGT_CHILD);
2300 rc = mdd_readpage_sanity_check(env, mdd_obj);
2302 GOTO(out_unlock, rc);
2304 if (mdd_is_dead_obj(mdd_obj)) {
2306 struct lu_dirpage *dp;
2309 * According to POSIX, please do not return any entry to client:
2310 * even dot and dotdot should not be returned.
2312 CWARN("readdir from dead object: "DFID"\n",
2313 PFID(mdd_object_fid(mdd_obj)));
2315 if (rdpg->rp_count <= 0)
2316 GOTO(out_unlock, rc = -EFAULT);
2317 LASSERT(rdpg->rp_pages != NULL);
2319 pg = rdpg->rp_pages[0];
2320 dp = (struct lu_dirpage*)cfs_kmap(pg);
2321 memset(dp, 0 , sizeof(struct lu_dirpage));
2322 dp->ldp_hash_start = cpu_to_le64(rdpg->rp_hash);
2323 dp->ldp_hash_end = cpu_to_le64(DIR_END_OFF);
2324 dp->ldp_flags |= LDF_EMPTY;
2325 dp->ldp_flags = cpu_to_le32(dp->ldp_flags);
2327 GOTO(out_unlock, rc = 0);
2330 rc = __mdd_readpage(env, mdd_obj, rdpg);
2334 mdd_read_unlock(env, mdd_obj);
2338 static int mdd_object_sync(const struct lu_env *env, struct md_object *obj)
2340 struct mdd_object *mdd_obj = md2mdd_obj(obj);
2341 struct dt_object *next;
2343 LASSERT(mdd_object_exists(mdd_obj));
2344 next = mdd_object_child(mdd_obj);
2345 return next->do_ops->do_object_sync(env, next);
2348 static dt_obj_version_t mdd_version_get(const struct lu_env *env,
2349 struct md_object *obj)
2351 struct mdd_object *mdd_obj = md2mdd_obj(obj);
2353 LASSERT(mdd_object_exists(mdd_obj));
2354 return do_version_get(env, mdd_object_child(mdd_obj));
2357 static void mdd_version_set(const struct lu_env *env, struct md_object *obj,
2358 dt_obj_version_t version)
2360 struct mdd_object *mdd_obj = md2mdd_obj(obj);
2362 LASSERT(mdd_object_exists(mdd_obj));
2363 do_version_set(env, mdd_object_child(mdd_obj), version);
2366 const struct md_object_operations mdd_obj_ops = {
2367 .moo_permission = mdd_permission,
2368 .moo_attr_get = mdd_attr_get,
2369 .moo_attr_set = mdd_attr_set,
2370 .moo_xattr_get = mdd_xattr_get,
2371 .moo_xattr_set = mdd_xattr_set,
2372 .moo_xattr_list = mdd_xattr_list,
2373 .moo_xattr_del = mdd_xattr_del,
2374 .moo_object_create = mdd_object_create,
2375 .moo_ref_add = mdd_ref_add,
2376 .moo_ref_del = mdd_ref_del,
2377 .moo_open = mdd_open,
2378 .moo_close = mdd_close,
2379 .moo_readpage = mdd_readpage,
2380 .moo_readlink = mdd_readlink,
2381 .moo_capa_get = mdd_capa_get,
2382 .moo_object_sync = mdd_object_sync,
2383 .moo_version_get = mdd_version_get,
2384 .moo_version_set = mdd_version_set,
2385 .moo_path = mdd_path,