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 rc = ll_gns_mount_object(dentry, nd->mnt);
408 if (rc == -ERESTARTSYS) {
410 * making system to restart syscall as currently GNS is
411 * in mounting progress.
413 GOTO(out, retval = rc);
418 GOTO(out, retval = NULL);
420 GOTO(out, retval = dentry);
423 ptlrpc_req_finished(req);
424 if (it == &lookup_it)
425 ll_intent_release(it);
427 CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> %lu/%lu\n",
429 (unsigned long) parent->i_ino,
430 (unsigned long) parent->i_generation,
431 dentry->d_name.len, dentry->d_name.name,
432 (unsigned long) dentry->d_inode->i_ino,
433 (unsigned long) dentry->d_inode->i_generation);
435 CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> ??\n",
437 (unsigned long) parent->i_ino,
438 (unsigned long) parent->i_generation,
439 dentry->d_name.len, dentry->d_name.name);
443 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
444 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
445 struct nameidata *nd)
450 if (nd && nd->flags & LOOKUP_LAST && !(nd->flags & LOOKUP_LINK_NOTLAST))
451 de = ll_lookup_it(parent, dentry, nd, nd->flags);
453 de = ll_lookup_it(parent, dentry, nd, 0);
459 /* We depend on "mode" being set with the proper file type/umask by now */
460 static struct inode *ll_create_node(struct inode *dir, const char *name,
461 int namelen, const void *data, int datalen,
462 int mode, __u64 extra,
463 struct lookup_intent *it)
465 struct inode *inode = NULL;
466 struct ptlrpc_request *request = NULL;
467 struct ll_sb_info *sbi = ll_i2sbi(dir);
472 LASSERT(it && LUSTRE_IT(it)->it_disposition);
474 request = LUSTRE_IT(it)->it_data;
475 rc = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
476 &inode, request, 1, dir->i_sb);
478 GOTO(out, inode = ERR_PTR(rc));
480 LASSERT(list_empty(&inode->i_dentry));
482 /* We asked for a lock on the directory, but were granted a
483 * lock on the inode. Since we finally have an inode pointer,
484 * stuff it in the lock. */
485 CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
486 inode, inode->i_ino, inode->i_generation);
487 mdc_set_lock_data(NULL, &LUSTRE_IT(it)->it_lock_handle, inode);
490 ptlrpc_req_finished(request);
495 * By the time this is called, we already have created the directory cache
496 * entry for the new file, but it is so far negative - it has no inode.
498 * We defer creating the OBD object(s) until open, to keep the intent and
499 * non-intent code paths similar, and also because we do not have the MDS
500 * inode number before calling ll_create_node() (which is needed for LOV),
501 * so we would need to do yet another RPC to the MDS to store the LOV EA
502 * data on the MDS. If needed, we would pass the PACKED lmm as data and
503 * lmm_size in datalen (the MDS still has code which will handle that).
505 * If the create succeeds, we fill in the inode information
506 * with d_instantiate().
508 static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
509 struct lookup_intent *it)
512 struct ptlrpc_request *request = LUSTRE_IT(it)->it_data;
513 struct obd_export *md_exp = ll_i2mdexp(dir);
517 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
518 dentry->d_name.len, dentry->d_name.name, dir->i_ino,
519 dir->i_generation, dir, LL_IT2STR(it));
521 rc = it_open_error(DISP_OPEN_CREATE, it);
525 mdc_store_inode_generation(md_exp, request, MDS_REQ_INTENT_REC_OFF, 1);
526 inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
527 NULL, 0, mode, 0, it);
529 RETURN(PTR_ERR(inode));
531 d_instantiate(dentry, inode);
535 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
536 static int ll_create_nd(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
538 return ll_create_it(dir, dentry, mode, &nd->intent.open);
542 static void ll_update_times(struct ptlrpc_request *request, int offset,
545 struct mds_body *body = lustre_msg_buf(request->rq_repmsg, offset,
549 if (body->valid & OBD_MD_FLMTIME &&
550 body->mtime > LTIME_S(inode->i_mtime)) {
551 CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %u\n",
552 inode->i_ino, LTIME_S(inode->i_mtime), body->mtime);
553 LTIME_S(inode->i_mtime) = body->mtime;
555 if (body->valid & OBD_MD_FLCTIME &&
556 body->ctime > LTIME_S(inode->i_ctime))
557 LTIME_S(inode->i_ctime) = body->ctime;
560 static int ll_mknod_raw(struct nameidata *nd, int mode, dev_t rdev)
562 struct ptlrpc_request *request = NULL;
563 struct inode *dir = nd->dentry->d_inode;
564 struct ll_sb_info *sbi = ll_i2sbi(dir);
565 struct mdc_op_data *op_data;
569 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
570 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
572 mode &= ~current->fs->umask;
574 switch (mode & S_IFMT) {
577 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
582 OBD_ALLOC(op_data, sizeof(*op_data));
585 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
587 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
588 current->fsuid, current->fsgid, rdev,
590 OBD_FREE(op_data, sizeof(*op_data));
592 ll_update_times(request, 0, dir);
593 ptlrpc_req_finished(request);
604 static int ll_mknod(struct inode *dir, struct dentry *dchild,
605 int mode, ll_dev_t rdev)
607 struct ptlrpc_request *request = NULL;
608 struct inode *inode = NULL;
609 struct ll_sb_info *sbi = ll_i2sbi(dir);
610 struct mdc_op_data *op_data;
614 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
615 dchild->d_name.len, dchild->d_name.name,
616 dir->i_ino, dir->i_generation, dir);
618 mode &= ~current->fs->umask;
620 switch (mode & S_IFMT) {
623 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
628 OBD_ALLOC(op_data, sizeof(*op_data));
631 ll_prepare_mdc_data(op_data, dir, NULL, dchild->d_name.name,
632 dchild->d_name.len, 0);
633 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
634 current->fsuid, current->fsgid, rdev,
636 OBD_FREE(op_data, sizeof(*op_data));
640 ll_update_times(request, 0, dir);
641 err = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
642 &inode, request, 0, dchild->d_sb);
653 d_instantiate(dchild, inode);
656 ptlrpc_req_finished(request);
660 static int ll_symlink_raw(struct nameidata *nd, const char *tgt)
662 struct inode *dir = nd->dentry->d_inode;
663 struct ptlrpc_request *request = NULL;
664 struct ll_sb_info *sbi = ll_i2sbi(dir);
665 const char *name = nd->last.name;
666 struct mdc_op_data *op_data;
667 int len = nd->last.len;
671 CDEBUG(D_VFSTRACE, "VFS Op:name=%*s,dir=%lu/%u(%p),target=%s\n",
672 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation,
675 if (dir->i_nlink >= EXT3_LINK_MAX)
678 OBD_ALLOC(op_data, sizeof(*op_data));
681 ll_prepare_mdc_data(op_data, dir, NULL, name, len, 0);
683 err = md_create(sbi->ll_md_exp, op_data,
684 tgt, strlen(tgt) + 1, S_IFLNK | S_IRWXUGO,
685 current->fsuid, current->fsgid, 0, &request);
686 OBD_FREE(op_data, sizeof(*op_data));
688 ll_update_times(request, 0, dir);
690 ptlrpc_req_finished(request);
694 static int ll_link_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
696 struct inode *src = srcnd->dentry->d_inode;
697 struct inode *dir = tgtnd->dentry->d_inode;
698 struct ptlrpc_request *request = NULL;
699 struct mdc_op_data *op_data;
701 struct ll_sb_info *sbi = ll_i2sbi(dir);
705 "VFS Op: inode=%lu/%u(%p), dir=%lu/%u(%p), target=%.*s\n",
706 src->i_ino, src->i_generation, src, dir->i_ino,
707 dir->i_generation, dir, tgtnd->last.len, tgtnd->last.name);
709 OBD_ALLOC(op_data, sizeof(*op_data));
712 ll_prepare_mdc_data(op_data, src, dir, tgtnd->last.name,
714 err = md_link(sbi->ll_md_exp, op_data, &request);
715 OBD_FREE(op_data, sizeof(*op_data));
717 ll_update_times(request, 0, dir);
718 ptlrpc_req_finished(request);
723 static int ll_mkdir_raw(struct nameidata *nd, int mode)
725 struct inode *dir = nd->dentry->d_inode;
726 struct ptlrpc_request *request = NULL;
727 struct ll_sb_info *sbi = ll_i2sbi(dir);
728 struct mdc_op_data *op_data;
731 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
732 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
734 mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
735 OBD_ALLOC(op_data, sizeof(*op_data));
738 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
740 err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
741 current->fsuid, current->fsgid, 0, &request);
742 OBD_FREE(op_data, sizeof(*op_data));
744 ll_update_times(request, 0, dir);
745 ptlrpc_req_finished(request);
749 static int ll_rmdir_raw(struct nameidata *nd)
751 struct inode *dir = nd->dentry->d_inode;
752 struct ptlrpc_request *request = NULL;
753 struct mdc_op_data *op_data;
757 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
758 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
760 OBD_ALLOC(op_data, sizeof(*op_data));
763 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name,
764 nd->last.len, S_IFDIR);
765 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
766 OBD_FREE(op_data, sizeof(*op_data));
768 ll_update_times(request, 0, dir);
769 ptlrpc_req_finished(request);
773 int ll_objects_destroy(struct ptlrpc_request *request,
774 struct inode *dir, int offset)
776 struct mds_body *body;
777 struct lov_mds_md *eadata;
778 struct lov_stripe_md *lsm = NULL;
779 struct obd_trans_info oti = { 0 };
784 /* req is swabbed so this is safe */
785 body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
787 if (!(body->valid & OBD_MD_FLEASIZE))
790 if (body->eadatasize == 0) {
791 CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
792 GOTO(out, rc = -EPROTO);
796 * the MDS sent back the EA because we unlinked the last reference to
797 * this file. Use this EA to unlink the objects on the OST. It's opaque
798 * so we don't swab here; we leave it to obd_unpackmd() to check it is
799 * complete and sensible.
801 eadata = lustre_swab_repbuf(request, 1, body->eadatasize, NULL);
802 LASSERT(eadata != NULL);
803 if (eadata == NULL) {
804 CERROR("Can't unpack MDS EA data\n");
805 GOTO(out, rc = -EPROTO);
808 rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
810 CERROR("obd_unpackmd: %d\n", rc);
813 LASSERT(rc >= sizeof(*lsm));
817 GOTO(out_free_memmd, rc = -ENOMEM);
819 oa->o_id = lsm->lsm_object_id;
820 oa->o_gr = lsm->lsm_object_gr;
821 oa->o_mode = body->mode & S_IFMT;
822 oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
824 if (body->valid & OBD_MD_FLCOOKIE) {
825 int length = sizeof(struct llog_cookie) *
826 lsm->lsm_stripe_count;
827 oa->o_valid |= OBD_MD_FLCOOKIE;
829 lustre_msg_buf(request->rq_repmsg, 2, length);
830 if (oti.oti_logcookies == NULL) {
831 oa->o_valid &= ~OBD_MD_FLCOOKIE;
832 body->valid &= ~OBD_MD_FLCOOKIE;
834 /* copy llog cookies to request to replay unlink
835 * so that the same llog file and records as those created
836 * during fail can be re-created while doing replay
839 memcpy(lustre_msg_buf(request->rq_reqmsg, offset, 0),
840 oti.oti_logcookies, length);
844 rc = obd_destroy(ll_i2dtexp(dir), oa, lsm, &oti);
847 CERROR("obd destroy objid "LPX64" error %d\n",
848 lsm->lsm_object_id, rc);
851 obd_free_memmd(ll_i2dtexp(dir), &lsm);
856 static int ll_unlink_raw(struct nameidata *nd)
858 struct inode *dir = nd->dentry->d_inode;
859 struct ptlrpc_request *request = NULL;
860 struct mdc_op_data *op_data;
863 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
864 nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
866 OBD_ALLOC(op_data, sizeof(*op_data));
869 ll_prepare_mdc_data(op_data, dir, NULL, nd->last.name, nd->last.len, 0);
870 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
871 OBD_FREE(op_data, sizeof(*op_data));
874 ll_update_times(request, 0, dir);
876 rc = ll_objects_destroy(request, dir, 2);
879 ptlrpc_req_finished(request);
883 static int ll_rename_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
885 struct inode *src = srcnd->dentry->d_inode;
886 struct inode *tgt = tgtnd->dentry->d_inode;
887 struct ptlrpc_request *request = NULL;
888 struct ll_sb_info *sbi = ll_i2sbi(src);
889 struct mdc_op_data *op_data;
893 CDEBUG(D_VFSTRACE,"VFS Op:oldname=%.*s,src_dir=%lu/%u(%p),newname=%.*s,"
894 "tgt_dir=%lu/%u(%p)\n", srcnd->last.len, srcnd->last.name,
895 src->i_ino, src->i_generation, src, tgtnd->last.len,
896 tgtnd->last.name, tgt->i_ino, tgt->i_generation, tgt);
898 OBD_ALLOC(op_data, sizeof(*op_data));
901 ll_prepare_mdc_data(op_data, src, tgt, NULL, 0, 0);
902 err = md_rename(sbi->ll_md_exp, op_data, srcnd->last.name,
903 srcnd->last.len, tgtnd->last.name, tgtnd->last.len,
905 OBD_FREE(op_data, sizeof(*op_data));
907 ll_update_times(request, 0, src);
908 ll_update_times(request, 0, tgt);
909 err = ll_objects_destroy(request, src, 3);
912 ptlrpc_req_finished(request);
916 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
917 #define LLITE_IT_RAWOPS (IT_MKNOD|IT_MKDIR|IT_SYMLINK|IT_LINK|IT_UNLINK|IT_RMDIR|IT_RENAME)
918 static int ll_rawop_from_intent(struct nameidata *nd)
922 if (!nd || !(nd->intent.open.op & LLITE_IT_RAWOPS))
925 switch (nd->intent.open.op) {
927 error = ll_mknod_raw(nd, nd->intent.open.create_mode,
928 nd->intent.open.create.dev);
931 error = ll_mkdir_raw(nd, nd->intent.open.create_mode);
934 error = ll_rmdir_raw(nd);
937 error = ll_unlink_raw(nd);
940 LASSERT(nd->intent.open.create.link);
941 error = ll_symlink_raw(nd, nd->intent.open.create.link);
944 error = ll_link_raw(nd->intent.open.create.source_nd, nd);
947 LASSERT(nd->intent.open.create.source_nd);
948 error = ll_rename_raw(nd->intent.open.create.source_nd, nd);
953 if (error != -EOPNOTSUPP)
954 nd->intent.open.flags |= IT_STATUS_RAW;
960 struct inode_operations ll_dir_inode_operations = {
962 .setattr = ll_setattr,
963 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
964 .create_it = ll_create_it,
965 .lookup_it = ll_lookup_it,
966 .revalidate_it = ll_inode_revalidate_it,
968 .lookup = ll_lookup_nd,
969 .create = ll_create_nd,
970 .getattr = ll_getattr,
971 .endparentlookup = ll_rawop_from_intent,
973 .setxattr = ll_setxattr,
974 .getxattr = ll_getxattr,
975 .listxattr = ll_listxattr,
976 .removexattr = ll_removexattr,
977 .permission = ll_inode_permission,