4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
34 #include <linux/sched.h>
36 #include <linux/quotaops.h>
37 #include <linux/highmem.h>
38 #include <linux/pagemap.h>
39 #include <linux/security.h>
41 #define DEBUG_SUBSYSTEM S_LLITE
43 #include "../include/obd_support.h"
44 #include "../include/lustre_fid.h"
45 #include "../include/lustre_lite.h"
46 #include "../include/lustre_dlm.h"
47 #include "../include/lustre_ver.h"
48 #include "llite_internal.h"
50 static int ll_create_it(struct inode *, struct dentry *,
51 int, struct lookup_intent *);
53 /* called from iget5_locked->find_inode() under inode_hash_lock spinlock */
54 static int ll_test_inode(struct inode *inode, void *opaque)
56 struct ll_inode_info *lli = ll_i2info(inode);
57 struct lustre_md *md = opaque;
59 if (unlikely(!(md->body->valid & OBD_MD_FLID))) {
60 CERROR("MDS body missing FID\n");
64 if (!lu_fid_eq(&lli->lli_fid, &md->body->fid1))
70 static int ll_set_inode(struct inode *inode, void *opaque)
72 struct ll_inode_info *lli = ll_i2info(inode);
73 struct mdt_body *body = ((struct lustre_md *)opaque)->body;
75 if (unlikely(!(body->valid & OBD_MD_FLID))) {
76 CERROR("MDS body missing FID\n");
80 lli->lli_fid = body->fid1;
81 if (unlikely(!(body->valid & OBD_MD_FLTYPE))) {
82 CERROR("Can not initialize inode " DFID
83 " without object type: valid = %#llx\n",
84 PFID(&lli->lli_fid), body->valid);
88 inode->i_mode = (inode->i_mode & ~S_IFMT) | (body->mode & S_IFMT);
89 if (unlikely(inode->i_mode == 0)) {
90 CERROR("Invalid inode "DFID" type\n", PFID(&lli->lli_fid));
100 * Get an inode by inode number (already instantiated by the intent lookup).
101 * Returns inode or NULL
103 struct inode *ll_iget(struct super_block *sb, ino_t hash,
104 struct lustre_md *md)
109 inode = iget5_locked(sb, hash, ll_test_inode, ll_set_inode, md);
112 if (inode->i_state & I_NEW) {
115 ll_read_inode2(inode, md);
116 if (S_ISREG(inode->i_mode) &&
117 !ll_i2info(inode)->lli_clob) {
119 "%s: apply lsm %p to inode " DFID ".\n",
120 ll_get_fsname(sb, NULL, 0), md->lsm,
121 PFID(ll_inode2fid(inode)));
122 rc = cl_file_inode_init(inode, md);
128 unlock_new_inode(inode);
130 } else if (!(inode->i_state & (I_FREEING | I_CLEAR))) {
131 ll_update_inode(inode, md);
132 CDEBUG(D_VFSTRACE, "got inode: "DFID"(%p)\n",
133 PFID(&md->body->fid1), inode);
139 static void ll_invalidate_negative_children(struct inode *dir)
141 struct dentry *dentry, *tmp_subdir;
143 spin_lock(&dir->i_lock);
144 hlist_for_each_entry(dentry, &dir->i_dentry, d_u.d_alias) {
145 spin_lock(&dentry->d_lock);
146 if (!list_empty(&dentry->d_subdirs)) {
147 struct dentry *child;
149 list_for_each_entry_safe(child, tmp_subdir,
152 if (d_really_is_negative(child))
153 d_lustre_invalidate(child, 1);
156 spin_unlock(&dentry->d_lock);
158 spin_unlock(&dir->i_lock);
161 int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
162 void *data, int flag)
164 struct lustre_handle lockh;
168 case LDLM_CB_BLOCKING:
169 ldlm_lock2handle(lock, &lockh);
170 rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
172 CDEBUG(D_INODE, "ldlm_cli_cancel: rc = %d\n", rc);
176 case LDLM_CB_CANCELING: {
177 struct inode *inode = ll_inode_from_resource_lock(lock);
178 __u64 bits = lock->l_policy_data.l_inodebits.bits;
180 /* Inode is set to lock->l_resource->lr_lvb_inode
181 * for mdc - bug 24555
183 LASSERT(!lock->l_ast_data);
188 /* Invalidate all dentries associated with this inode */
189 LASSERT(ldlm_is_canceling(lock));
191 if (!fid_res_name_eq(ll_inode2fid(inode),
192 &lock->l_resource->lr_name)) {
193 LDLM_ERROR(lock, "data mismatch with object "DFID"(%p)",
194 PFID(ll_inode2fid(inode)), inode);
198 if (bits & MDS_INODELOCK_XATTR) {
199 ll_xattr_cache_destroy(inode);
200 bits &= ~MDS_INODELOCK_XATTR;
203 /* For OPEN locks we differentiate between lock modes
204 * LCK_CR, LCK_CW, LCK_PR - bug 22891
206 if (bits & MDS_INODELOCK_OPEN)
207 ll_have_md_lock(inode, &bits, lock->l_req_mode);
209 if (bits & MDS_INODELOCK_OPEN) {
212 switch (lock->l_req_mode) {
223 LDLM_ERROR(lock, "bad lock mode for OPEN lock");
227 ll_md_real_close(inode, fmode);
230 if (bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
231 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_PERM))
232 ll_have_md_lock(inode, &bits, LCK_MINMODE);
234 if (bits & MDS_INODELOCK_LAYOUT) {
235 struct cl_object_conf conf = {
236 .coc_opc = OBJECT_CONF_INVALIDATE,
240 rc = ll_layout_conf(inode, &conf);
242 CDEBUG(D_INODE, "cannot invalidate layout of "
244 PFID(ll_inode2fid(inode)), rc);
247 if (bits & MDS_INODELOCK_UPDATE) {
248 struct ll_inode_info *lli = ll_i2info(inode);
250 spin_lock(&lli->lli_lock);
251 lli->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
252 spin_unlock(&lli->lli_lock);
255 if ((bits & MDS_INODELOCK_UPDATE) && S_ISDIR(inode->i_mode)) {
256 CDEBUG(D_INODE, "invalidating inode "DFID"\n",
257 PFID(ll_inode2fid(inode)));
258 truncate_inode_pages(inode->i_mapping, 0);
259 ll_invalidate_negative_children(inode);
262 if ((bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)) &&
263 inode->i_sb->s_root &&
264 !is_root_inode(inode))
265 ll_invalidate_aliases(inode);
277 __u32 ll_i2suppgid(struct inode *i)
279 if (in_group_p(i->i_gid))
280 return (__u32)from_kgid(&init_user_ns, i->i_gid);
285 /* Pack the required supplementary groups into the supplied groups array.
286 * If we don't need to use the groups from the target inode(s) then we
287 * instead pack one or more groups from the user's supplementary group
288 * array in case it might be useful. Not needed if doing an MDS-side upcall.
290 void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
294 suppgids[0] = ll_i2suppgid(i1);
297 suppgids[1] = ll_i2suppgid(i2);
303 * try to reuse three types of dentry:
304 * 1. unhashed alias, this one is unhashed by d_invalidate (but it may be valid
305 * by concurrent .revalidate).
306 * 2. INVALID alias (common case for no valid ldlm lock held, but this flag may
307 * be cleared by others calling d_lustre_revalidate).
308 * 3. DISCONNECTED alias.
310 static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
312 struct dentry *alias, *discon_alias, *invalid_alias;
314 if (hlist_empty(&inode->i_dentry))
318 invalid_alias = NULL;
320 spin_lock(&inode->i_lock);
321 hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
322 LASSERT(alias != dentry);
324 spin_lock(&alias->d_lock);
325 if (alias->d_flags & DCACHE_DISCONNECTED)
326 /* LASSERT(last_discon == NULL); LU-405, bz 20055 */
327 discon_alias = alias;
328 else if (alias->d_parent == dentry->d_parent &&
329 alias->d_name.hash == dentry->d_name.hash &&
330 alias->d_name.len == dentry->d_name.len &&
331 memcmp(alias->d_name.name, dentry->d_name.name,
332 dentry->d_name.len) == 0)
333 invalid_alias = alias;
334 spin_unlock(&alias->d_lock);
339 alias = invalid_alias ?: discon_alias ?: NULL;
341 spin_lock(&alias->d_lock);
343 spin_unlock(&alias->d_lock);
345 spin_unlock(&inode->i_lock);
351 * Similar to d_splice_alias(), but lustre treats invalid alias
352 * similar to DCACHE_DISCONNECTED, and tries to use it anyway.
354 struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
360 new = ll_find_alias(inode, de);
370 "Reuse dentry %p inode %p refc %d flags %#x\n",
371 new, d_inode(new), d_count(new), new->d_flags);
379 CDEBUG(D_DENTRY, "Add dentry %p inode %p refc %d flags %#x\n",
380 de, d_inode(de), d_count(de), de->d_flags);
384 static int ll_lookup_it_finish(struct ptlrpc_request *request,
385 struct lookup_intent *it,
386 struct inode *parent, struct dentry **de)
388 struct inode *inode = NULL;
391 struct dentry *alias;
393 /* NB 1 request reference will be taken away by ll_intent_lock()
396 CDEBUG(D_DENTRY, "it %p it_disposition %x\n", it,
398 if (!it_disposition(it, DISP_LOOKUP_NEG)) {
399 rc = ll_prep_inode(&inode, request, (*de)->d_sb, it);
403 ll_set_lock_data(ll_i2sbi(parent)->ll_md_exp, inode, it, &bits);
405 /* We used to query real size from OSTs here, but actually
406 * this is not needed. For stat() calls size would be updated
407 * from subsequent do_revalidate()->ll_inode_revalidate_it() in
409 * vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
410 * Everybody else who needs correct file size would call
411 * ll_glimpse_size or some equivalent themselves anyway.
416 alias = ll_splice_alias(inode, *de);
423 if (!it_disposition(it, DISP_LOOKUP_NEG)) {
424 /* we have lookup look - unhide dentry */
425 if (bits & MDS_INODELOCK_LOOKUP)
426 d_lustre_revalidate(*de);
427 } else if (!it_disposition(it, DISP_OPEN_CREATE)) {
428 /* If file created on server, don't depend on parent UPDATE
429 * lock to unhide it. It is left hidden and next lookup can
430 * find it in ll_splice_alias.
432 /* Check that parent has UPDATE lock. */
433 struct lookup_intent parent_it = {
435 .it_lock_handle = 0 };
437 if (md_revalidate_lock(ll_i2mdexp(parent), &parent_it,
438 &ll_i2info(parent)->lli_fid, NULL)) {
439 d_lustre_revalidate(*de);
440 ll_intent_release(&parent_it);
445 if (rc != 0 && it->it_op & IT_OPEN)
446 ll_open_cleanup((*de)->d_sb, request);
451 static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
452 struct lookup_intent *it, int lookup_flags)
454 struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
455 struct dentry *save = dentry, *retval;
456 struct ptlrpc_request *req = NULL;
458 struct md_op_data *op_data;
462 if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen)
463 return ERR_PTR(-ENAMETOOLONG);
465 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),intent=%s\n",
466 dentry, PFID(ll_inode2fid(parent)), parent, LL_IT2STR(it));
468 if (d_mountpoint(dentry))
469 CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
471 if (!it || it->it_op == IT_GETXATTR)
474 if (it->it_op == IT_GETATTR) {
475 rc = ll_statahead_enter(parent, &dentry, 0);
485 if (it->it_op & IT_CREAT)
486 opc = LUSTRE_OPC_CREATE;
488 opc = LUSTRE_OPC_ANY;
490 op_data = ll_prep_md_op_data(NULL, parent, NULL, dentry->d_name.name,
491 dentry->d_name.len, lookup_flags, opc,
494 return (void *)op_data;
496 /* enforce umask if acl disabled or MDS doesn't support umask */
497 if (!IS_POSIXACL(parent) || !exp_connect_umask(ll_i2mdexp(parent)))
498 it->it_create_mode &= ~current_umask();
500 rc = md_intent_lock(ll_i2mdexp(parent), op_data, NULL, 0, it,
501 lookup_flags, &req, ll_md_blocking_ast, 0);
502 ll_finish_md_op_data(op_data);
504 retval = ERR_PTR(rc);
508 rc = ll_lookup_it_finish(req, it, parent, &dentry);
510 ll_intent_release(it);
511 retval = ERR_PTR(rc);
515 inode = d_inode(dentry);
516 if ((it->it_op & IT_OPEN) && inode &&
517 !S_ISREG(inode->i_mode) &&
518 !S_ISDIR(inode->i_mode)) {
519 ll_release_openhandle(inode, it);
521 ll_lookup_finish_locks(it, inode);
529 ptlrpc_req_finished(req);
530 if (it->it_op == IT_GETATTR && (!retval || retval == dentry))
531 ll_statahead_mark(parent, dentry);
535 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
538 struct lookup_intent *itp, it = { .it_op = IT_GETATTR };
541 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),flags=%u\n",
542 dentry, PFID(ll_inode2fid(parent)), parent, flags);
544 /* Optimize away (CREATE && !OPEN). Let .create handle the race. */
545 if ((flags & LOOKUP_CREATE) && !(flags & LOOKUP_OPEN))
548 if (flags & (LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE))
552 de = ll_lookup_it(parent, dentry, itp, 0);
555 ll_intent_release(itp);
561 * For cached negative dentry and new dentry, handle lookup/create/open
564 static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
565 struct file *file, unsigned open_flags,
566 umode_t mode, int *opened)
568 struct lookup_intent *it;
570 long long lookup_flags = LOOKUP_OPEN;
573 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),file %p,open_flags %x,mode %x opened %d\n",
574 dentry, PFID(ll_inode2fid(dir)), dir, file, open_flags, mode,
577 /* Only negative dentries enter here */
578 LASSERT(!d_inode(dentry));
580 if (!d_in_lookup(dentry)) {
581 /* A valid negative dentry that just passed revalidation,
582 * there's little point to try and open it server-side,
583 * even though there's a minuscle chance it might succeed.
584 * Either way it's a valid race to just return -ENOENT here.
586 if (!(open_flags & O_CREAT))
589 /* Otherwise we just unhash it to be rehashed afresh via
590 * lookup if necessary
595 it = kzalloc(sizeof(*it), GFP_NOFS);
600 if (open_flags & O_CREAT) {
601 it->it_op |= IT_CREAT;
602 lookup_flags |= LOOKUP_CREATE;
604 it->it_create_mode = (mode & S_IALLUGO) | S_IFREG;
605 it->it_flags = (open_flags & ~O_ACCMODE) | OPEN_FMODE(open_flags);
607 /* Dentry added to dcache tree in ll_lookup_it */
608 de = ll_lookup_it(dir, dentry, it, lookup_flags);
615 if (it_disposition(it, DISP_OPEN_CREATE)) {
616 /* Dentry instantiated in ll_create_it. */
617 rc = ll_create_it(dir, dentry, mode, it);
619 /* We dget in ll_splice_alias. */
625 *opened |= FILE_CREATED;
627 if (d_really_is_positive(dentry) && it_disposition(it, DISP_OPEN_OPEN)) {
629 if (S_ISFIFO(d_inode(dentry)->i_mode)) {
630 /* We cannot call open here as it might
631 * deadlock. This case is unreachable in
632 * practice because of OBD_CONNECT_NODEVOH.
634 rc = finish_no_open(file, de);
636 file->private_data = it;
637 rc = finish_open(file, dentry, NULL, opened);
638 /* We dget in ll_splice_alias. finish_open takes
639 * care of dget for fd open.
645 rc = finish_no_open(file, de);
650 ll_intent_release(it);
656 /* We depend on "mode" being set with the proper file type/umask by now */
657 static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
659 struct inode *inode = NULL;
660 struct ptlrpc_request *request = NULL;
661 struct ll_sb_info *sbi = ll_i2sbi(dir);
664 LASSERT(it && it->it_disposition);
666 LASSERT(it_disposition(it, DISP_ENQ_CREATE_REF));
667 request = it->it_request;
668 it_clear_disposition(it, DISP_ENQ_CREATE_REF);
669 rc = ll_prep_inode(&inode, request, dir->i_sb, it);
675 LASSERT(hlist_empty(&inode->i_dentry));
677 /* We asked for a lock on the directory, but were granted a
678 * lock on the inode. Since we finally have an inode pointer,
679 * stuff it in the lock.
681 CDEBUG(D_DLMTRACE, "setting l_ast_data to inode "DFID"(%p)\n",
682 PFID(ll_inode2fid(dir)), inode);
683 ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
685 ptlrpc_req_finished(request);
690 * By the time this is called, we already have created the directory cache
691 * entry for the new file, but it is so far negative - it has no inode.
693 * We defer creating the OBD object(s) until open, to keep the intent and
694 * non-intent code paths similar, and also because we do not have the MDS
695 * inode number before calling ll_create_node() (which is needed for LOV),
696 * so we would need to do yet another RPC to the MDS to store the LOV EA
697 * data on the MDS. If needed, we would pass the PACKED lmm as data and
698 * lmm_size in datalen (the MDS still has code which will handle that).
700 * If the create succeeds, we fill in the inode information
701 * with d_instantiate().
703 static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
704 struct lookup_intent *it)
709 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p), intent=%s\n",
710 dentry, PFID(ll_inode2fid(dir)), dir, LL_IT2STR(it));
712 rc = it_open_error(DISP_OPEN_CREATE, it);
716 inode = ll_create_node(dir, it);
718 return PTR_ERR(inode);
720 d_instantiate(dentry, inode);
724 static void ll_update_times(struct ptlrpc_request *request,
727 struct mdt_body *body = req_capsule_server_get(&request->rq_pill,
731 if (body->valid & OBD_MD_FLMTIME &&
732 body->mtime > LTIME_S(inode->i_mtime)) {
733 CDEBUG(D_INODE, "setting fid "DFID" mtime from %lu to %llu\n",
734 PFID(ll_inode2fid(inode)), LTIME_S(inode->i_mtime),
736 LTIME_S(inode->i_mtime) = body->mtime;
738 if (body->valid & OBD_MD_FLCTIME &&
739 body->ctime > LTIME_S(inode->i_ctime))
740 LTIME_S(inode->i_ctime) = body->ctime;
743 static int ll_new_node(struct inode *dir, struct dentry *dentry,
744 const char *tgt, int mode, int rdev,
747 struct ptlrpc_request *request = NULL;
748 struct md_op_data *op_data;
749 struct inode *inode = NULL;
750 struct ll_sb_info *sbi = ll_i2sbi(dir);
755 tgt_len = strlen(tgt) + 1;
757 op_data = ll_prep_md_op_data(NULL, dir, NULL,
761 if (IS_ERR(op_data)) {
762 err = PTR_ERR(op_data);
766 err = md_create(sbi->ll_md_exp, op_data, tgt, tgt_len, mode,
767 from_kuid(&init_user_ns, current_fsuid()),
768 from_kgid(&init_user_ns, current_fsgid()),
769 cfs_curproc_cap_pack(), rdev, &request);
770 ll_finish_md_op_data(op_data);
774 ll_update_times(request, dir);
776 err = ll_prep_inode(&inode, request, dir->i_sb, NULL);
780 d_instantiate(dentry, inode);
782 ptlrpc_req_finished(request);
787 static int ll_mknod(struct inode *dir, struct dentry *dchild,
788 umode_t mode, dev_t rdev)
792 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p) mode %o dev %x\n",
793 dchild, PFID(ll_inode2fid(dir)), dir, mode,
794 old_encode_dev(rdev));
796 if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
797 mode &= ~current_umask();
799 switch (mode & S_IFMT) {
801 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
807 err = ll_new_node(dir, dchild, NULL, mode,
808 old_encode_dev(rdev),
819 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKNOD, 1);
825 * Plain create. Intent create is handled in atomic_open.
827 static int ll_create_nd(struct inode *dir, struct dentry *dentry,
828 umode_t mode, bool want_excl)
832 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p), flags=%u, excl=%d\n",
833 dentry, PFID(ll_inode2fid(dir)), dir, mode, want_excl);
835 rc = ll_mknod(dir, dentry, mode, 0);
837 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
839 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, unhashed %d\n",
840 dentry, d_unhashed(dentry));
845 int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
847 struct mdt_body *body;
848 struct lov_mds_md *eadata;
849 struct lov_stripe_md *lsm = NULL;
850 struct obd_trans_info oti = { 0 };
854 /* req is swabbed so this is safe */
855 body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
856 if (!(body->valid & OBD_MD_FLEASIZE))
859 if (body->eadatasize == 0) {
860 CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
865 /* The MDS sent back the EA because we unlinked the last reference
866 * to this file. Use this EA to unlink the objects on the OST.
867 * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
868 * check it is complete and sensible.
870 eadata = req_capsule_server_sized_get(&request->rq_pill, &RMF_MDT_MD,
874 rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
876 CERROR("obd_unpackmd: %d\n", rc);
879 LASSERT(rc >= sizeof(*lsm));
881 oa = kmem_cache_zalloc(obdo_cachep, GFP_NOFS);
887 oa->o_oi = lsm->lsm_oi;
888 oa->o_mode = body->mode & S_IFMT;
889 oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
891 if (body->valid & OBD_MD_FLCOOKIE) {
892 oa->o_valid |= OBD_MD_FLCOOKIE;
894 req_capsule_server_sized_get(&request->rq_pill,
896 sizeof(struct llog_cookie) *
897 lsm->lsm_stripe_count);
898 if (!oti.oti_logcookies) {
899 oa->o_valid &= ~OBD_MD_FLCOOKIE;
900 body->valid &= ~OBD_MD_FLCOOKIE;
904 rc = obd_destroy(NULL, ll_i2dtexp(dir), oa, lsm, &oti,
907 CERROR("obd destroy objid "DOSTID" error %d\n",
908 POSTID(&lsm->lsm_oi), rc);
910 obd_free_memmd(ll_i2dtexp(dir), &lsm);
911 kmem_cache_free(obdo_cachep, oa);
916 /* ll_unlink() doesn't update the inode with the new link count.
917 * Instead, ll_ddelete() and ll_d_iput() will update it based upon if there
918 * is any lock existing. They will recycle dentries and inodes based upon locks
921 static int ll_unlink(struct inode *dir, struct dentry *dchild)
923 struct ptlrpc_request *request = NULL;
924 struct md_op_data *op_data;
927 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n",
928 dchild, dir->i_ino, dir->i_generation, dir);
930 op_data = ll_prep_md_op_data(NULL, dir, NULL,
933 0, LUSTRE_OPC_ANY, NULL);
935 return PTR_ERR(op_data);
937 if (dchild && dchild->d_inode)
938 op_data->op_fid3 = *ll_inode2fid(dchild->d_inode);
940 op_data->op_fid2 = op_data->op_fid3;
941 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
942 ll_finish_md_op_data(op_data);
946 ll_update_times(request, dir);
947 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_UNLINK, 1);
949 rc = ll_objects_destroy(request, dir);
951 ptlrpc_req_finished(request);
955 static int ll_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
959 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir"DFID"(%p)\n",
960 dentry, PFID(ll_inode2fid(dir)), dir);
962 if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
963 mode &= ~current_umask();
964 mode = (mode & (S_IRWXUGO|S_ISVTX)) | S_IFDIR;
965 err = ll_new_node(dir, dentry, NULL, mode, 0, LUSTRE_OPC_MKDIR);
968 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKDIR, 1);
973 static int ll_rmdir(struct inode *dir, struct dentry *dchild)
975 struct ptlrpc_request *request = NULL;
976 struct md_op_data *op_data;
979 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p)\n",
980 dchild, PFID(ll_inode2fid(dir)), dir);
982 op_data = ll_prep_md_op_data(NULL, dir, NULL,
985 S_IFDIR, LUSTRE_OPC_ANY, NULL);
987 return PTR_ERR(op_data);
989 if (dchild && dchild->d_inode)
990 op_data->op_fid3 = *ll_inode2fid(dchild->d_inode);
992 op_data->op_fid2 = op_data->op_fid3;
993 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
994 ll_finish_md_op_data(op_data);
996 ll_update_times(request, dir);
997 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
1000 ptlrpc_req_finished(request);
1004 static int ll_symlink(struct inode *dir, struct dentry *dentry,
1005 const char *oldname)
1009 CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),target=%.*s\n",
1010 dentry, PFID(ll_inode2fid(dir)), dir, 3000, oldname);
1012 err = ll_new_node(dir, dentry, oldname, S_IFLNK | S_IRWXUGO,
1013 0, LUSTRE_OPC_SYMLINK);
1016 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_SYMLINK, 1);
1021 static int ll_link(struct dentry *old_dentry, struct inode *dir,
1022 struct dentry *new_dentry)
1024 struct inode *src = d_inode(old_dentry);
1025 struct ll_sb_info *sbi = ll_i2sbi(dir);
1026 struct ptlrpc_request *request = NULL;
1027 struct md_op_data *op_data;
1030 CDEBUG(D_VFSTRACE, "VFS Op: inode="DFID"(%p), dir="DFID"(%p), target=%pd\n",
1031 PFID(ll_inode2fid(src)), src, PFID(ll_inode2fid(dir)), dir,
1034 op_data = ll_prep_md_op_data(NULL, src, dir, new_dentry->d_name.name,
1035 new_dentry->d_name.len,
1036 0, LUSTRE_OPC_ANY, NULL);
1037 if (IS_ERR(op_data))
1038 return PTR_ERR(op_data);
1040 err = md_link(sbi->ll_md_exp, op_data, &request);
1041 ll_finish_md_op_data(op_data);
1045 ll_update_times(request, dir);
1046 ll_stats_ops_tally(sbi, LPROC_LL_LINK, 1);
1048 ptlrpc_req_finished(request);
1052 static int ll_rename(struct inode *src, struct dentry *src_dchild,
1053 struct inode *tgt, struct dentry *tgt_dchild)
1055 struct ptlrpc_request *request = NULL;
1056 struct ll_sb_info *sbi = ll_i2sbi(src);
1057 struct md_op_data *op_data;
1061 "VFS Op:oldname=%pd, src_dir="DFID"(%p), newname=%pd, tgt_dir="DFID"(%p)\n",
1062 src_dchild, PFID(ll_inode2fid(src)), src,
1063 tgt_dchild, PFID(ll_inode2fid(tgt)), tgt);
1065 op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0,
1066 LUSTRE_OPC_ANY, NULL);
1067 if (IS_ERR(op_data))
1068 return PTR_ERR(op_data);
1070 if (src_dchild && src_dchild->d_inode)
1071 op_data->op_fid3 = *ll_inode2fid(src_dchild->d_inode);
1072 if (tgt_dchild && tgt_dchild->d_inode)
1073 op_data->op_fid4 = *ll_inode2fid(tgt_dchild->d_inode);
1075 err = md_rename(sbi->ll_md_exp, op_data,
1076 src_dchild->d_name.name,
1077 src_dchild->d_name.len,
1078 tgt_dchild->d_name.name,
1079 tgt_dchild->d_name.len, &request);
1080 ll_finish_md_op_data(op_data);
1082 ll_update_times(request, src);
1083 ll_update_times(request, tgt);
1084 ll_stats_ops_tally(sbi, LPROC_LL_RENAME, 1);
1085 err = ll_objects_destroy(request, src);
1088 ptlrpc_req_finished(request);
1090 d_move(src_dchild, tgt_dchild);
1094 const struct inode_operations ll_dir_inode_operations = {
1096 .atomic_open = ll_atomic_open,
1097 .lookup = ll_lookup_nd,
1098 .create = ll_create_nd,
1099 /* We need all these non-raw things for NFSD, to not patch it. */
1100 .unlink = ll_unlink,
1103 .symlink = ll_symlink,
1105 .rename = ll_rename,
1106 .setattr = ll_setattr,
1107 .getattr = ll_getattr,
1108 .permission = ll_inode_permission,
1109 .setxattr = ll_setxattr,
1110 .getxattr = ll_getxattr,
1111 .listxattr = ll_listxattr,
1112 .removexattr = ll_removexattr,
1113 .get_acl = ll_get_acl,
1116 const struct inode_operations ll_special_inode_operations = {
1117 .setattr = ll_setattr,
1118 .getattr = ll_getattr,
1119 .permission = ll_inode_permission,
1120 .setxattr = ll_setxattr,
1121 .getxattr = ll_getxattr,
1122 .listxattr = ll_listxattr,
1123 .removexattr = ll_removexattr,
1124 .get_acl = ll_get_acl,