1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * derived in small part from linux/fs/ext2/namei.c
23 * Copyright (C) 1991, 1992 Linus Torvalds
25 * Big-endian to little-endian byte-swapping/bitmaps by
26 * David S. Miller (davem@caip.rutgers.edu), 1995
27 * Directory entry file type support and forward compatibility hooks
28 * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
32 #include <linux/sched.h>
34 #include <linux/smp_lock.h>
35 #include <linux/quotaops.h>
36 #include <linux/highmem.h>
37 #include <linux/pagemap.h>
39 #define DEBUG_SUBSYSTEM S_LLITE
41 #include <linux/obd_support.h>
42 #include <linux/lustre_lite.h>
43 #include <linux/lustre_dlm.h>
44 #include <linux/lustre_version.h>
45 #include "llite_internal.h"
49 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
50 static int ll_test_inode(struct inode *inode, unsigned long ino, void *opaque)
52 static int ll_test_inode(struct inode *inode, void *opaque)
55 static int last_ino, last_gen, last_count;
56 struct lustre_md *md = opaque;
58 if (!(md->body->valid & (OBD_MD_FLGENER | OBD_MD_FLID))) {
59 CERROR("MDS body missing inum or generation\n");
63 if (last_ino == id_ino(&md->body->id1) &&
64 last_gen == id_gen(&md->body->id1) &&
69 CDEBUG(D_VFSTRACE, "compared %u/%u %u times\n",
70 last_ino, last_gen, last_count);
72 last_ino = id_ino(&md->body->id1);
73 last_gen = id_gen(&md->body->id1);
75 "comparing inode %p ino "DLID4" to body "DLID4"\n",
76 inode, OLID4(&ll_i2info(inode)->lli_id),
77 OLID4(&md->body->id1));
80 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
81 if (inode->i_ino != id_ino(&md->body->id1))
84 if (inode->i_generation != id_gen(&md->body->id1))
87 if (id_group(&ll_i2info(inode)->lli_id) != id_group(&md->body->id1))
90 /* apply the attributes in 'opaque' to this inode. */
91 ll_update_inode(inode, md);
95 extern struct dentry_operations ll_d_ops;
97 int ll_unlock(__u32 mode, struct lustre_handle *lockh)
101 ldlm_lock_decref(lockh, mode);
107 * get an inode by inode number (already instantiated by the intent lookup).
108 * Returns inode or NULL.
110 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
111 int ll_set_inode(struct inode *inode, void *opaque)
113 ll_read_inode2(inode, opaque);
117 struct inode *ll_iget(struct super_block *sb, ino_t hash,
118 struct lustre_md *md)
123 inode = iget5_locked(sb, hash, ll_test_inode, ll_set_inode, md);
126 if (inode->i_state & I_NEW)
127 unlock_new_inode(inode);
128 CDEBUG(D_VFSTRACE, "inode: %lu/%u(%p)\n", inode->i_ino,
129 inode->i_generation, inode);
135 struct inode *ll_iget(struct super_block *sb, ino_t hash,
136 struct lustre_md *md)
140 inode = iget4(sb, hash, ll_test_inode, md);
142 CDEBUG(D_VFSTRACE, "inode: %lu/%u(%p)\n", inode->i_ino,
143 inode->i_generation, inode);
148 int ll_mdc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
149 void *data, int flag)
152 struct lustre_handle lockh;
156 case LDLM_CB_BLOCKING:
157 ldlm_lock2handle(lock, &lockh);
158 rc = ldlm_cli_cancel(&lockh);
160 CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
164 case LDLM_CB_CANCELING: {
165 struct inode *inode = ll_inode_from_lock(lock);
166 struct ll_inode_info *li = ll_i2info(inode);
167 __u64 bits = lock->l_policy_data.l_inodebits.bits;
169 /* For lookup locks: Invalidate all dentries associated with
170 this inode, for UPDATE locks - invalidate directory pages */
174 if (bits & MDS_INODELOCK_UPDATE)
175 clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK,
176 &(ll_i2info(inode)->lli_flags));
179 if (lock->l_resource->lr_name.name[0] != id_fid(&li->lli_id) ||
180 lock->l_resource->lr_name.name[1] != id_group(&li->lli_id)) {
181 LDLM_ERROR(lock, "data mismatch with object %lu/%lu",
182 (unsigned long)id_fid(&li->lli_id),
183 (unsigned long)id_group(&li->lli_id));
186 if (bits & MDS_INODELOCK_OPEN) {
188 switch (lock->l_req_mode) {
199 CERROR("Unexpected lock mode for OPEN lock "
200 "%d, inode %ld\n", lock->l_req_mode,
203 ll_md_real_close(ll_i2mdexp(inode), inode, flags);
206 if (bits & MDS_INODELOCK_UPDATE)
207 clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK,
208 &(ll_i2info(inode)->lli_flags));
211 /* If lookup lock is cancelled, we just drop the dentry and
212 this will cause us to reget data from MDS when we'd want to
213 access this dentry/inode again. If this is lock on
214 other parts of inode that is cancelled, we do not need to do
215 much (but need to discard data from readdir, if any), since
216 abscence of lock will cause ll_revalidate_it (called from
217 stat() and similar functions) to renew the data anyway */
218 if (S_ISDIR(inode->i_mode) &&
219 (bits & MDS_INODELOCK_UPDATE)) {
220 CDEBUG(D_INODE, "invalidating inode %lu/%u(%p)\n",
221 inode->i_ino, inode->i_generation, inode);
222 truncate_inode_pages(inode->i_mapping, 0);
225 if (inode->i_sb->s_root &&
226 inode != inode->i_sb->s_root->d_inode &&
227 (bits & MDS_INODELOCK_LOOKUP))
228 ll_unhash_aliases(inode);
239 int ll_mdc_cancel_unused(struct lustre_handle *conn, struct inode *inode,
240 int flags, void *opaque)
242 struct ll_inode_info *li = ll_i2info(inode);
243 struct ldlm_res_id res_id =
244 { .name = {id_fid(&li->lli_id), id_group(&li->lli_id)} };
245 struct obd_device *obddev = class_conn2obd(conn);
248 RETURN(ldlm_cli_cancel_unused(obddev->obd_namespace, &res_id, flags,
252 /* Search "inode"'s alias list for a dentry that has the same name and parent as
253 * de. If found, return it. If not found, return de. */
254 struct dentry *ll_find_alias(struct inode *inode, struct dentry *de)
256 struct list_head *tmp;
258 spin_lock(&dcache_lock);
259 list_for_each(tmp, &inode->i_dentry) {
260 struct dentry *dentry = list_entry(tmp, struct dentry, d_alias);
262 /* We are called here with 'de' already on the aliases list. */
268 if (dentry->d_parent != de->d_parent)
271 if (dentry->d_name.len != de->d_name.len)
274 if (memcmp(dentry->d_name.name, de->d_name.name,
275 de->d_name.len) != 0)
278 if (!list_empty(&dentry->d_lru))
279 list_del_init(&dentry->d_lru);
281 hlist_del_init(&dentry->d_hash);
282 __d_rehash(dentry); /* avoid taking dcache_lock inside */
283 spin_unlock(&dcache_lock);
284 atomic_inc(&dentry->d_count);
286 dentry->d_flags &= ~DCACHE_LUSTRE_INVALID;
287 CDEBUG(D_DENTRY, "alias dentry %*s (%p) parent %p inode %p "
288 "refc %d\n", de->d_name.len, de->d_name.name, de,
289 de->d_parent, de->d_inode, atomic_read(&de->d_count));
293 spin_unlock(&dcache_lock);
298 static int lookup_it_finish(struct ptlrpc_request *request, int offset,
299 struct lookup_intent *it, void *data)
301 struct it_cb_data *icbd = data;
302 struct dentry **de = icbd->icbd_childp;
303 struct inode *parent = icbd->icbd_parent;
304 struct ll_sb_info *sbi = ll_i2sbi(parent);
305 struct dentry *dentry = *de, *saved = *de;
306 struct inode *inode = NULL;
309 /* NB 1 request reference will be taken away by ll_intent_lock()
311 if (!it_disposition(it, DISP_LOOKUP_NEG)) {
314 rc = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
315 &inode, request, offset, dentry->d_sb);
319 CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
320 inode, inode->i_ino, inode->i_generation);
322 mdc_set_lock_data(NULL, &LUSTRE_IT(it)->it_lock_handle, inode);
324 /* If this is a stat, get the authoritative file size */
325 if (it->it_op == IT_GETATTR && S_ISREG(inode->i_mode) &&
326 ll_i2info(inode)->lli_smd != NULL) {
327 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
330 LASSERT(lsm->lsm_object_id != 0);
332 /* bug 2334: drop MDS lock before acquiring OST lock */
333 ll_intent_drop_lock(it);
335 rc = ll_glimpse_size(inode);
342 dentry = *de = ll_find_alias(inode, dentry);
347 dentry->d_op = &ll_d_ops;
351 d_add(dentry, inode);
356 static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
357 struct nameidata *nd, int flags)
359 struct dentry *save = dentry, *retval;
360 struct lookup_intent *it = flags ? &nd->intent.open : NULL;
361 struct lustre_id pid;
362 struct it_cb_data icbd;
363 struct ptlrpc_request *req = NULL;
364 struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
368 if (dentry->d_name.len > EXT3_NAME_LEN)
369 RETURN(ERR_PTR(-ENAMETOOLONG));
371 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
372 dentry->d_name.len, dentry->d_name.name, parent->i_ino,
373 parent->i_generation, parent, LL_IT2STR(it));
375 if (d_mountpoint(dentry))
376 CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
379 nd->mnt->mnt_last_used = jiffies;
381 orig_it = it ? it->it_op : IT_OPEN;
382 ll_frob_intent(&it, &lookup_it);
384 icbd.icbd_childp = &dentry;
385 icbd.icbd_parent = parent;
386 ll_inode2id(&pid, parent);
388 rc = md_intent_lock(ll_i2mdexp(parent), &pid,
389 dentry->d_name.name, dentry->d_name.len, NULL, 0,
390 NULL, it, flags, &req, ll_mdc_blocking_ast);
392 GOTO(out, retval = ERR_PTR(rc));
394 rc = lookup_it_finish(req, 1, it, &icbd);
396 ll_intent_release(it);
397 GOTO(out, retval = ERR_PTR(rc));
400 ll_lookup_finish_locks(it, dentry);
403 dentry->d_inode != NULL && dentry->d_inode->i_mode & S_ISUID &&
404 S_ISDIR(dentry->d_inode->i_mode) &&
405 ((flags & LOOKUP_CONTINUE) || (orig_it & (IT_CHDIR | IT_OPEN))))
407 spin_lock(&dentry->d_lock);
408 dentry->d_flags |= DCACHE_GNS_PENDING;
409 spin_unlock(&dentry->d_lock);
413 GOTO(out, retval = NULL);
415 GOTO(out, retval = dentry);
418 ptlrpc_req_finished(req);
419 if (it == &lookup_it)
420 ll_intent_release(it);
422 CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> %lu/%lu\n",
424 (unsigned long) parent->i_ino,
425 (unsigned long) parent->i_generation,
426 dentry->d_name.len, dentry->d_name.name,
427 (unsigned long) dentry->d_inode->i_ino,
428 (unsigned long) dentry->d_inode->i_generation);
430 CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> ??\n",
432 (unsigned long) parent->i_ino,
433 (unsigned long) parent->i_generation,
434 dentry->d_name.len, dentry->d_name.name);
438 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
439 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
440 struct nameidata *nd)
445 if (nd && nd->flags & LOOKUP_LAST && !(nd->flags & LOOKUP_LINK_NOTLAST))
446 de = ll_lookup_it(parent, dentry, nd, nd->flags);
448 de = ll_lookup_it(parent, dentry, nd, 0);
454 /* We depend on "mode" being set with the proper file type/umask by now */
455 static struct inode *ll_create_node(struct inode *dir, const char *name,
456 int namelen, const void *data, int datalen,
457 int mode, __u64 extra,
458 struct lookup_intent *it)
460 struct inode *inode = NULL;
461 struct ptlrpc_request *request = NULL;
462 struct ll_sb_info *sbi = ll_i2sbi(dir);
467 LASSERT(it && LUSTRE_IT(it)->it_disposition);
469 request = LUSTRE_IT(it)->it_data;
470 rc = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
471 &inode, request, 1, dir->i_sb);
473 GOTO(out, inode = ERR_PTR(rc));
475 LASSERT(list_empty(&inode->i_dentry));
477 /* We asked for a lock on the directory, but were granted a
478 * lock on the inode. Since we finally have an inode pointer,
479 * stuff it in the lock. */
480 CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
481 inode, inode->i_ino, inode->i_generation);
482 mdc_set_lock_data(NULL, &LUSTRE_IT(it)->it_lock_handle, inode);
485 ptlrpc_req_finished(request);
490 * By the time this is called, we already have created the directory cache
491 * entry for the new file, but it is so far negative - it has no inode.
493 * We defer creating the OBD object(s) until open, to keep the intent and
494 * non-intent code paths similar, and also because we do not have the MDS
495 * inode number before calling ll_create_node() (which is needed for LOV),
496 * so we would need to do yet another RPC to the MDS to store the LOV EA
497 * data on the MDS. If needed, we would pass the PACKED lmm as data and
498 * lmm_size in datalen (the MDS still has code which will handle that).
500 * If the create succeeds, we fill in the inode information
501 * with d_instantiate().
503 static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
504 struct lookup_intent *it)
507 struct ptlrpc_request *request = LUSTRE_IT(it)->it_data;
508 struct obd_export *md_exp = ll_i2mdexp(dir);
512 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
513 dentry->d_name.len, dentry->d_name.name, dir->i_ino,
514 dir->i_generation, dir, LL_IT2STR(it));
516 rc = it_open_error(DISP_OPEN_CREATE, it);
520 mdc_store_inode_generation(md_exp, request, MDS_REQ_INTENT_REC_OFF, 1);
521 inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
522 NULL, 0, mode, 0, it);
524 RETURN(PTR_ERR(inode));
526 d_instantiate(dentry, inode);
530 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
531 static int ll_create_nd(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
533 return ll_create_it(dir, dentry, mode, &nd->intent.open);
537 static void ll_update_times(struct ptlrpc_request *request, int offset,
540 struct mds_body *body = lustre_msg_buf(request->rq_repmsg, offset,
544 if (body->valid & OBD_MD_FLMTIME &&
545 body->mtime > LTIME_S(inode->i_mtime)) {
546 CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %u\n",
547 inode->i_ino, LTIME_S(inode->i_mtime), body->mtime);
548 LTIME_S(inode->i_mtime) = body->mtime;
550 if (body->valid & OBD_MD_FLCTIME &&
551 body->ctime > LTIME_S(inode->i_ctime))
552 LTIME_S(inode->i_ctime) = body->ctime;
555 static int ll_mknod_raw(struct nameidata *nd, int mode, dev_t rdev)
557 struct ptlrpc_request *request = NULL;
558 struct inode *dir = nd->dentry->d_inode;
559 struct ll_sb_info *sbi = ll_i2sbi(dir);
560 struct mdc_op_data *op_data;
564 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
565 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
567 mode &= ~current->fs->umask;
569 switch (mode & S_IFMT) {
572 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
577 OBD_ALLOC(op_data, sizeof(*op_data));
580 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
582 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
583 current->fsuid, current->fsgid, rdev,
585 OBD_FREE(op_data, sizeof(*op_data));
587 ll_update_times(request, 0, dir);
588 ptlrpc_req_finished(request);
599 static int ll_mknod(struct inode *dir, struct dentry *dchild,
600 int mode, ll_dev_t rdev)
602 struct ptlrpc_request *request = NULL;
603 struct inode *inode = NULL;
604 struct ll_sb_info *sbi = ll_i2sbi(dir);
605 struct mdc_op_data *op_data;
609 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
610 dchild->d_name.len, dchild->d_name.name,
611 dir->i_ino, dir->i_generation, dir);
613 mode &= ~current->fs->umask;
615 switch (mode & S_IFMT) {
618 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
623 OBD_ALLOC(op_data, sizeof(*op_data));
626 ll_prepare_mdc_data(op_data, dir, NULL, dchild->d_name.name,
627 dchild->d_name.len, 0);
628 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
629 current->fsuid, current->fsgid, rdev,
631 OBD_FREE(op_data, sizeof(*op_data));
635 ll_update_times(request, 0, dir);
636 err = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
637 &inode, request, 0, dchild->d_sb);
648 d_instantiate(dchild, inode);
651 ptlrpc_req_finished(request);
655 static int ll_symlink_raw(struct nameidata *nd, const char *tgt)
657 struct inode *dir = nd->dentry->d_inode;
658 struct ptlrpc_request *request = NULL;
659 struct ll_sb_info *sbi = ll_i2sbi(dir);
660 const char *name = nd->last.name;
661 struct mdc_op_data *op_data;
662 int len = nd->last.len;
666 CDEBUG(D_VFSTRACE, "VFS Op:name=%*s,dir=%lu/%u(%p),target=%s\n",
667 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation,
670 if (dir->i_nlink >= EXT3_LINK_MAX)
673 OBD_ALLOC(op_data, sizeof(*op_data));
676 ll_prepare_mdc_data(op_data, dir, NULL, name, len, 0);
678 err = md_create(sbi->ll_md_exp, op_data,
679 tgt, strlen(tgt) + 1, S_IFLNK | S_IRWXUGO,
680 current->fsuid, current->fsgid, 0, &request);
681 OBD_FREE(op_data, sizeof(*op_data));
683 ll_update_times(request, 0, dir);
685 ptlrpc_req_finished(request);
689 static int ll_link_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
691 struct inode *src = srcnd->dentry->d_inode;
692 struct inode *dir = tgtnd->dentry->d_inode;
693 struct ptlrpc_request *request = NULL;
694 struct mdc_op_data *op_data;
696 struct ll_sb_info *sbi = ll_i2sbi(dir);
700 "VFS Op: inode=%lu/%u(%p), dir=%lu/%u(%p), target=%.*s\n",
701 src->i_ino, src->i_generation, src, dir->i_ino,
702 dir->i_generation, dir, tgtnd->last.len, tgtnd->last.name);
704 OBD_ALLOC(op_data, sizeof(*op_data));
707 ll_prepare_mdc_data(op_data, src, dir, tgtnd->last.name,
709 err = md_link(sbi->ll_md_exp, op_data, &request);
710 OBD_FREE(op_data, sizeof(*op_data));
712 ll_update_times(request, 0, dir);
713 ptlrpc_req_finished(request);
718 static int ll_mkdir_raw(struct nameidata *nd, int mode)
720 struct inode *dir = nd->dentry->d_inode;
721 struct ptlrpc_request *request = NULL;
722 struct ll_sb_info *sbi = ll_i2sbi(dir);
723 struct mdc_op_data *op_data;
726 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
727 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
729 mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
730 OBD_ALLOC(op_data, sizeof(*op_data));
733 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
735 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
736 current->fsuid, current->fsgid, 0, &request);
737 OBD_FREE(op_data, sizeof(*op_data));
739 ll_update_times(request, 0, dir);
740 ptlrpc_req_finished(request);
744 static int ll_rmdir_raw(struct nameidata *nd)
746 struct inode *dir = nd->dentry->d_inode;
747 struct ptlrpc_request *request = NULL;
748 struct mdc_op_data *op_data;
752 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
753 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
755 OBD_ALLOC(op_data, sizeof(*op_data));
758 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
759 nd->last.len, S_IFDIR);
760 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
761 OBD_FREE(op_data, sizeof(*op_data));
763 ll_update_times(request, 0, dir);
764 ptlrpc_req_finished(request);
768 int ll_objects_destroy(struct ptlrpc_request *request,
769 struct inode *dir, int offset)
771 struct mds_body *body;
772 struct lov_mds_md *eadata;
773 struct lov_stripe_md *lsm = NULL;
774 struct obd_trans_info oti = { 0 };
779 /* req is swabbed so this is safe */
780 body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
782 if (!(body->valid & OBD_MD_FLEASIZE))
785 if (body->eadatasize == 0) {
786 CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
787 GOTO(out, rc = -EPROTO);
791 * the MDS sent back the EA because we unlinked the last reference to
792 * this file. Use this EA to unlink the objects on the OST. It's opaque
793 * so we don't swab here; we leave it to obd_unpackmd() to check it is
794 * complete and sensible.
796 eadata = lustre_swab_repbuf(request, 1, body->eadatasize, NULL);
797 LASSERT(eadata != NULL);
798 if (eadata == NULL) {
799 CERROR("Can't unpack MDS EA data\n");
800 GOTO(out, rc = -EPROTO);
803 rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
805 CERROR("obd_unpackmd: %d\n", rc);
808 LASSERT(rc >= sizeof(*lsm));
812 GOTO(out_free_memmd, rc = -ENOMEM);
814 oa->o_id = lsm->lsm_object_id;
815 oa->o_gr = lsm->lsm_object_gr;
816 oa->o_mode = body->mode & S_IFMT;
817 oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
819 if (body->valid & OBD_MD_FLCOOKIE) {
820 int length = sizeof(struct llog_cookie) *
821 lsm->lsm_stripe_count;
822 oa->o_valid |= OBD_MD_FLCOOKIE;
824 lustre_msg_buf(request->rq_repmsg, 2, length);
825 if (oti.oti_logcookies == NULL) {
826 oa->o_valid &= ~OBD_MD_FLCOOKIE;
827 body->valid &= ~OBD_MD_FLCOOKIE;
829 /* copy llog cookies to request to replay unlink
830 * so that the same llog file and records as those created
831 * during fail can be re-created while doing replay
834 memcpy(lustre_msg_buf(request->rq_reqmsg, offset, 0),
835 oti.oti_logcookies, length);
839 rc = obd_destroy(ll_i2dtexp(dir), oa, lsm, &oti);
842 CERROR("obd destroy objid "LPX64" error %d\n",
843 lsm->lsm_object_id, rc);
846 obd_free_memmd(ll_i2dtexp(dir), &lsm);
851 static int ll_unlink_raw(struct nameidata *nd)
853 struct inode *dir = nd->dentry->d_inode;
854 struct ptlrpc_request *request = NULL;
855 struct mdc_op_data *op_data;
858 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
859 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
861 OBD_ALLOC(op_data, sizeof(*op_data));
864 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name, nd->last.len, 0);
865 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
866 OBD_FREE(op_data, sizeof(*op_data));
869 ll_update_times(request, 0, dir);
871 rc = ll_objects_destroy(request, dir, 2);
874 ptlrpc_req_finished(request);
878 static int ll_rename_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
880 struct inode *src = srcnd->dentry->d_inode;
881 struct inode *tgt = tgtnd->dentry->d_inode;
882 struct ptlrpc_request *request = NULL;
883 struct ll_sb_info *sbi = ll_i2sbi(src);
884 struct mdc_op_data *op_data;
888 CDEBUG(D_VFSTRACE,"VFS Op:oldname=%.*s,src_dir=%lu/%u(%p),newname=%.*s,"
889 "tgt_dir=%lu/%u(%p)\n", srcnd->last.len, srcnd->last.name,
890 src->i_ino, src->i_generation, src, tgtnd->last.len,
891 tgtnd->last.name, tgt->i_ino, tgt->i_generation, tgt);
893 OBD_ALLOC(op_data, sizeof(*op_data));
896 ll_prepare_mdc_data(op_data, src, tgt, NULL, 0, 0);
897 err = md_rename(sbi->ll_md_exp, op_data, srcnd->last.name,
898 srcnd->last.len, tgtnd->last.name, tgtnd->last.len,
900 OBD_FREE(op_data, sizeof(*op_data));
902 ll_update_times(request, 0, src);
903 ll_update_times(request, 0, tgt);
904 err = ll_objects_destroy(request, src, 3);
907 ptlrpc_req_finished(request);
911 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
912 #define LLITE_IT_RAWOPS (IT_MKNOD|IT_MKDIR|IT_SYMLINK|IT_LINK|IT_UNLINK|IT_RMDIR|IT_RENAME)
913 static int ll_rawop_from_intent(struct nameidata *nd)
917 if (!nd || !(nd->intent.open.op & LLITE_IT_RAWOPS))
920 switch (nd->intent.open.op) {
922 error = ll_mknod_raw(nd, nd->intent.open.create_mode,
923 nd->intent.open.create.dev);
926 error = ll_mkdir_raw(nd, nd->intent.open.create_mode);
929 error = ll_rmdir_raw(nd);
932 error = ll_unlink_raw(nd);
935 LASSERT(nd->intent.open.create.link);
936 error = ll_symlink_raw(nd, nd->intent.open.create.link);
939 error = ll_link_raw(nd->intent.open.create.source_nd, nd);
942 LASSERT(nd->intent.open.create.source_nd);
943 error = ll_rename_raw(nd->intent.open.create.source_nd, nd);
948 if (error != -EOPNOTSUPP)
949 nd->intent.open.flags |= IT_STATUS_RAW;
955 struct inode_operations ll_dir_inode_operations = {
957 .setattr = ll_setattr,
958 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
959 .create_it = ll_create_it,
960 .lookup_it = ll_lookup_it,
961 .revalidate_it = ll_inode_revalidate_it,
963 .lookup = ll_lookup_nd,
964 .create = ll_create_nd,
965 .getattr = ll_getattr,
966 .endparentlookup = ll_rawop_from_intent,
968 .setxattr = ll_setxattr,
969 .getxattr = ll_getxattr,
970 .listxattr = ll_listxattr,
971 .removexattr = ll_removexattr,
972 .permission = ll_inode_permission,