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, 2017, 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>
40 #include <linux/user_namespace.h>
41 #ifdef HAVE_UIDGID_HEADER
42 # include <linux/uidgid.h>
45 #define DEBUG_SUBSYSTEM S_LLITE
47 #include <obd_support.h>
48 #include <lustre_fid.h>
49 #include <lustre_dlm.h>
50 #include "llite_internal.h"
52 static int ll_create_it(struct inode *dir, struct dentry *dentry,
53 struct lookup_intent *it,
54 void *secctx, __u32 secctxlen);
56 /* called from iget5_locked->find_inode() under inode_lock spinlock */
57 static int ll_test_inode(struct inode *inode, void *opaque)
59 struct ll_inode_info *lli = ll_i2info(inode);
60 struct lustre_md *md = opaque;
62 if (unlikely(!(md->body->mbo_valid & OBD_MD_FLID))) {
63 CERROR("MDS body missing FID\n");
67 if (!lu_fid_eq(&lli->lli_fid, &md->body->mbo_fid1))
73 static int ll_set_inode(struct inode *inode, void *opaque)
75 struct ll_inode_info *lli = ll_i2info(inode);
76 struct mdt_body *body = ((struct lustre_md *)opaque)->body;
78 if (unlikely(!(body->mbo_valid & OBD_MD_FLID))) {
79 CERROR("MDS body missing FID\n");
83 lli->lli_fid = body->mbo_fid1;
84 if (unlikely(!(body->mbo_valid & OBD_MD_FLTYPE))) {
85 CERROR("Can not initialize inode "DFID" without object type: "
87 PFID(&lli->lli_fid), body->mbo_valid);
91 inode->i_mode = (inode->i_mode & ~S_IFMT) | (body->mbo_mode & S_IFMT);
92 if (unlikely(inode->i_mode == 0)) {
93 CERROR("Invalid inode "DFID" type\n", PFID(&lli->lli_fid));
104 * Get an inode by inode number(@hash), which is already instantiated by
105 * the intent lookup).
107 struct inode *ll_iget(struct super_block *sb, ino_t hash,
108 struct lustre_md *md)
116 inode = iget5_locked(sb, hash, ll_test_inode, ll_set_inode, md);
118 RETURN(ERR_PTR(-ENOMEM));
120 if (inode->i_state & I_NEW) {
121 rc = ll_read_inode2(inode, md);
122 if (rc == 0 && S_ISREG(inode->i_mode) &&
123 ll_i2info(inode)->lli_clob == NULL)
124 rc = cl_file_inode_init(inode, md);
127 /* Let's clear directory lsm here, otherwise
128 * make_bad_inode() will reset the inode mode
129 * to regular, then ll_clear_inode will not
130 * be able to clear lsm_md */
131 if (S_ISDIR(inode->i_mode))
132 ll_dir_clear_lsm_md(inode);
133 make_bad_inode(inode);
134 unlock_new_inode(inode);
138 inode_has_no_xattr(inode);
139 unlock_new_inode(inode);
141 } else if (is_bad_inode(inode)) {
143 inode = ERR_PTR(-ESTALE);
144 } else if (!(inode->i_state & (I_FREEING | I_CLEAR))) {
145 rc = ll_update_inode(inode, md);
146 CDEBUG(D_VFSTRACE, "got inode: "DFID"(%p): rc = %d\n",
147 PFID(&md->body->mbo_fid1), inode, rc);
149 if (S_ISDIR(inode->i_mode))
150 ll_dir_clear_lsm_md(inode);
159 static void ll_invalidate_negative_children(struct inode *dir)
161 struct dentry *dentry, *tmp_subdir;
162 DECLARE_LL_D_HLIST_NODE_PTR(p);
165 ll_d_hlist_for_each_entry(dentry, p, &dir->i_dentry) {
166 spin_lock(&dentry->d_lock);
167 if (!list_empty(&dentry->d_subdirs)) {
168 struct dentry *child;
170 list_for_each_entry_safe(child, tmp_subdir,
173 if (child->d_inode == NULL)
174 d_lustre_invalidate(child, 1);
177 spin_unlock(&dentry->d_lock);
179 ll_unlock_dcache(dir);
182 int ll_test_inode_by_fid(struct inode *inode, void *opaque)
184 return lu_fid_eq(&ll_i2info(inode)->lli_fid, opaque);
187 int ll_dom_lock_cancel(struct inode *inode, struct ldlm_lock *lock)
190 struct ll_inode_info *lli = ll_i2info(inode);
191 struct cl_layout clt = { .cl_layout_gen = 0, };
201 env = cl_env_get(&refcheck);
203 RETURN(PTR_ERR(env));
205 rc = cl_object_layout_get(env, lli->lli_clob, &clt);
207 CDEBUG(D_INODE, "Cannot get layout for "DFID"\n",
208 PFID(ll_inode2fid(inode)));
210 } else if (clt.cl_size == 0 || clt.cl_dom_comp_size == 0) {
211 CDEBUG(D_INODE, "DOM lock without DOM layout for "DFID"\n",
212 PFID(ll_inode2fid(inode)));
214 enum cl_fsync_mode mode;
215 loff_t end = clt.cl_dom_comp_size - 1;
217 mode = ldlm_is_discard_data(lock) ?
218 CL_FSYNC_DISCARD : CL_FSYNC_LOCAL;
219 rc = cl_sync_file_range(inode, 0, end, mode, 1);
220 truncate_inode_pages_range(inode->i_mapping, 0, end);
222 cl_env_put(env, &refcheck);
226 int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
227 void *data, int flag)
229 struct lustre_handle lockh;
234 case LDLM_CB_BLOCKING:
235 ldlm_lock2handle(lock, &lockh);
236 rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
238 CDEBUG(D_INODE, "ldlm_cli_cancel: rc = %d\n", rc);
242 case LDLM_CB_CANCELING: {
243 struct inode *inode = ll_inode_from_resource_lock(lock);
244 __u64 bits = lock->l_policy_data.l_inodebits.bits;
249 /* Invalidate all dentries associated with this inode */
250 LASSERT(ldlm_is_canceling(lock));
252 if (!fid_res_name_eq(ll_inode2fid(inode),
253 &lock->l_resource->lr_name)) {
254 LDLM_ERROR(lock, "data mismatch with object "DFID"(%p)",
255 PFID(ll_inode2fid(inode)), inode);
259 if (bits & MDS_INODELOCK_XATTR) {
260 if (S_ISDIR(inode->i_mode))
261 ll_i2info(inode)->lli_def_stripe_offset = -1;
262 ll_xattr_cache_destroy(inode);
263 bits &= ~MDS_INODELOCK_XATTR;
266 /* For OPEN locks we differentiate between lock modes
267 * LCK_CR, LCK_CW, LCK_PR - bug 22891 */
268 if (bits & MDS_INODELOCK_OPEN)
269 ll_have_md_lock(inode, &bits, lock->l_req_mode);
271 if (bits & MDS_INODELOCK_OPEN) {
274 switch (lock->l_req_mode) {
285 LDLM_ERROR(lock, "bad lock mode for OPEN lock");
289 ll_md_real_close(inode, fmode);
291 bits &= ~MDS_INODELOCK_OPEN;
294 if (bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
295 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_PERM |
297 ll_have_md_lock(inode, &bits, LCK_MINMODE);
299 if (bits & MDS_INODELOCK_DOM) {
300 rc = ll_dom_lock_cancel(inode, lock);
302 CDEBUG(D_INODE, "cannot flush DoM data "
304 PFID(ll_inode2fid(inode)), rc);
305 lock_res_and_lock(lock);
306 ldlm_set_kms_ignore(lock);
307 unlock_res_and_lock(lock);
308 bits &= ~MDS_INODELOCK_DOM;
311 if (bits & MDS_INODELOCK_LAYOUT) {
312 struct cl_object_conf conf = {
313 .coc_opc = OBJECT_CONF_INVALIDATE,
317 rc = ll_layout_conf(inode, &conf);
319 CDEBUG(D_INODE, "cannot invalidate layout of "
321 PFID(ll_inode2fid(inode)), rc);
324 if (bits & MDS_INODELOCK_UPDATE) {
325 struct ll_inode_info *lli = ll_i2info(inode);
326 lli->lli_update_atime = 1;
329 if ((bits & MDS_INODELOCK_UPDATE) && S_ISDIR(inode->i_mode)) {
330 struct ll_inode_info *lli = ll_i2info(inode);
332 CDEBUG(D_INODE, "invalidating inode "DFID" lli = %p, "
333 "pfid = "DFID"\n", PFID(ll_inode2fid(inode)),
334 lli, PFID(&lli->lli_pfid));
335 truncate_inode_pages(inode->i_mapping, 0);
337 if (unlikely(!fid_is_zero(&lli->lli_pfid))) {
338 struct inode *master_inode = NULL;
341 /* This is slave inode, since all of the child
342 * dentry is connected on the master inode, so
343 * we have to invalidate the negative children
345 CDEBUG(D_INODE, "Invalidate s"DFID" m"DFID"\n",
346 PFID(ll_inode2fid(inode)),
347 PFID(&lli->lli_pfid));
349 hash = cl_fid_build_ino(&lli->lli_pfid,
350 ll_need_32bit_api(ll_i2sbi(inode)));
352 /* Do not lookup the inode with ilookup5,
353 * otherwise it will cause dead lock,
355 * 1. Client1 send chmod req to the MDT0, then
356 * on MDT0, it enqueues master and all of its
357 * slaves lock, (mdt_attr_set() ->
358 * mdt_lock_slaves()), after gets master and
359 * stripe0 lock, it will send the enqueue req
360 * (for stripe1) to MDT1, then MDT1 finds the
361 * lock has been granted to client2. Then MDT1
362 * sends blocking ast to client2.
364 * 2. At the same time, client2 tries to unlink
365 * the striped dir (rm -rf striped_dir), and
366 * during lookup, it will hold the master inode
367 * of the striped directory, whose inode state
368 * is NEW, then tries to revalidate all of its
369 * slaves, (ll_prep_inode()->ll_iget()->
370 * ll_read_inode2()-> ll_update_inode().). And
371 * it will be blocked on the server side because
374 * 3. Then the client get the blocking_ast req,
375 * cancel the lock, but being blocked if using
376 * ->ilookup5()), because master inode state is
378 master_inode = ilookup5_nowait(inode->i_sb,
379 hash, ll_test_inode_by_fid,
380 (void *)&lli->lli_pfid);
382 ll_invalidate_negative_children(
387 ll_invalidate_negative_children(inode);
391 if ((bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)) &&
392 inode->i_sb->s_root != NULL &&
393 inode != inode->i_sb->s_root->d_inode)
394 ll_invalidate_aliases(inode);
406 __u32 ll_i2suppgid(struct inode *i)
408 if (in_group_p(i->i_gid))
409 return (__u32)from_kgid(&init_user_ns, i->i_gid);
411 return (__u32) __kgid_val(INVALID_GID);
414 /* Pack the required supplementary groups into the supplied groups array.
415 * If we don't need to use the groups from the target inode(s) then we
416 * instead pack one or more groups from the user's supplementary group
417 * array in case it might be useful. Not needed if doing an MDS-side upcall. */
418 void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
421 LASSERT(suppgids != NULL);
423 suppgids[0] = ll_i2suppgid(i1);
426 suppgids[1] = ll_i2suppgid(i2);
432 * try to reuse three types of dentry:
433 * 1. unhashed alias, this one is unhashed by d_invalidate (but it may be valid
434 * by concurrent .revalidate).
435 * 2. INVALID alias (common case for no valid ldlm lock held, but this flag may
436 * be cleared by others calling d_lustre_revalidate).
437 * 3. DISCONNECTED alias.
439 static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
441 struct dentry *alias, *discon_alias, *invalid_alias;
442 DECLARE_LL_D_HLIST_NODE_PTR(p);
444 if (ll_d_hlist_empty(&inode->i_dentry))
447 discon_alias = invalid_alias = NULL;
449 ll_lock_dcache(inode);
450 ll_d_hlist_for_each_entry(alias, p, &inode->i_dentry) {
451 LASSERT(alias != dentry);
453 spin_lock(&alias->d_lock);
454 if ((alias->d_flags & DCACHE_DISCONNECTED) &&
455 S_ISDIR(inode->i_mode))
456 /* LASSERT(last_discon == NULL); LU-405, bz 20055 */
457 discon_alias = alias;
458 else if (alias->d_parent == dentry->d_parent &&
459 alias->d_name.hash == dentry->d_name.hash &&
460 alias->d_name.len == dentry->d_name.len &&
461 memcmp(alias->d_name.name, dentry->d_name.name,
462 dentry->d_name.len) == 0)
463 invalid_alias = alias;
464 spin_unlock(&alias->d_lock);
469 alias = invalid_alias ?: discon_alias ?: NULL;
471 spin_lock(&alias->d_lock);
473 spin_unlock(&alias->d_lock);
475 ll_unlock_dcache(inode);
481 * Similar to d_splice_alias(), but lustre treats invalid alias
482 * similar to DCACHE_DISCONNECTED, and tries to use it anyway.
484 struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
490 new = ll_find_alias(inode, de);
500 "Reuse dentry %p inode %p refc %d flags %#x\n",
501 new, new->d_inode, ll_d_count(new), new->d_flags);
509 CDEBUG(D_DENTRY, "Add dentry %p inode %p refc %d flags %#x\n",
510 de, de->d_inode, ll_d_count(de), de->d_flags);
514 static int ll_lookup_it_finish(struct ptlrpc_request *request,
515 struct lookup_intent *it,
516 struct inode *parent, struct dentry **de)
518 struct inode *inode = NULL;
521 struct dentry *alias;
524 /* NB 1 request reference will be taken away by ll_intent_lock()
526 CDEBUG(D_DENTRY, "it %p it_disposition %x\n", it,
528 if (!it_disposition(it, DISP_LOOKUP_NEG)) {
529 rc = ll_prep_inode(&inode, request, (*de)->d_sb, it);
533 ll_set_lock_data(ll_i2sbi(parent)->ll_md_exp, inode, it, &bits);
535 /* We used to query real size from OSTs here, but actually
536 this is not needed. For stat() calls size would be updated
537 from subsequent do_revalidate()->ll_inode_revalidate_it() in
539 vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
540 Everybody else who needs correct file size would call
541 ll_glimpse_size or some equivalent themselves anyway.
542 Also see bug 7198. */
545 /* Only hash *de if it is unhashed (new dentry).
546 * Atoimc_open may passin hashed dentries for open.
548 alias = ll_splice_alias(inode, *de);
550 GOTO(out, rc = PTR_ERR(alias));
554 if (!it_disposition(it, DISP_LOOKUP_NEG)) {
555 /* we have lookup look - unhide dentry */
556 if (bits & MDS_INODELOCK_LOOKUP)
557 d_lustre_revalidate(*de);
558 } else if (!it_disposition(it, DISP_OPEN_CREATE)) {
559 /* If file created on server, don't depend on parent UPDATE
560 * lock to unhide it. It is left hidden and next lookup can
561 * find it in ll_splice_alias.
563 /* Check that parent has UPDATE lock. */
564 struct lookup_intent parent_it = {
566 .it_lock_handle = 0 };
567 struct lu_fid fid = ll_i2info(parent)->lli_fid;
569 /* If it is striped directory, get the real stripe parent */
570 if (unlikely(ll_i2info(parent)->lli_lsm_md != NULL)) {
571 rc = md_get_fid_from_lsm(ll_i2mdexp(parent),
572 ll_i2info(parent)->lli_lsm_md,
574 (*de)->d_name.len, &fid);
579 if (md_revalidate_lock(ll_i2mdexp(parent), &parent_it, &fid,
581 d_lustre_revalidate(*de);
582 ll_intent_release(&parent_it);
589 if (rc != 0 && it->it_op & IT_OPEN)
590 ll_open_cleanup((*de)->d_sb, request);
595 static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
596 struct lookup_intent *it,
597 void **secctx, __u32 *secctxlen)
599 struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
600 struct dentry *save = dentry, *retval;
601 struct ptlrpc_request *req = NULL;
602 struct md_op_data *op_data = NULL;
607 if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen)
608 RETURN(ERR_PTR(-ENAMETOOLONG));
610 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), intent=%s\n",
611 dentry->d_name.len, dentry->d_name.name,
612 PFID(ll_inode2fid(parent)), parent, LL_IT2STR(it));
614 if (d_mountpoint(dentry))
615 CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
617 if (it == NULL || it->it_op == IT_GETXATTR)
620 if (it->it_op == IT_GETATTR && dentry_may_statahead(parent, dentry)) {
621 rc = ll_statahead(parent, &dentry, 0);
623 RETURN(dentry == save ? NULL : dentry);
626 if (it->it_op & IT_OPEN && it->it_flags & FMODE_WRITE &&
627 dentry->d_sb->s_flags & MS_RDONLY)
628 RETURN(ERR_PTR(-EROFS));
630 if (it->it_op & IT_CREAT)
631 opc = LUSTRE_OPC_CREATE;
633 opc = LUSTRE_OPC_ANY;
635 op_data = ll_prep_md_op_data(NULL, parent, NULL, dentry->d_name.name,
636 dentry->d_name.len, 0, opc, NULL);
638 GOTO(out, retval = ERR_CAST(op_data));
640 /* enforce umask if acl disabled or MDS doesn't support umask */
641 if (!IS_POSIXACL(parent) || !exp_connect_umask(ll_i2mdexp(parent)))
642 it->it_create_mode &= ~current_umask();
644 if (it->it_op & IT_CREAT &&
645 ll_i2sbi(parent)->ll_flags & LL_SBI_FILE_SECCTX) {
646 rc = ll_dentry_init_security(dentry, it->it_create_mode,
648 &op_data->op_file_secctx_name,
649 &op_data->op_file_secctx,
650 &op_data->op_file_secctx_size);
652 GOTO(out, retval = ERR_PTR(rc));
654 *secctx = op_data->op_file_secctx;
655 if (secctxlen != NULL)
656 *secctxlen = op_data->op_file_secctx_size;
659 rc = md_intent_lock(ll_i2mdexp(parent), op_data, it, &req,
660 &ll_md_blocking_ast, 0);
661 /* If the MDS allows the client to chgrp (CFS_SETGRP_PERM), but the
662 * client does not know which suppgid should be sent to the MDS, or
663 * some other(s) changed the target file's GID after this RPC sent
664 * to the MDS with the suppgid as the original GID, then we should
665 * try again with right suppgid. */
666 if (rc == -EACCES && it->it_op & IT_OPEN &&
667 it_disposition(it, DISP_OPEN_DENY)) {
668 struct mdt_body *body;
670 LASSERT(req != NULL);
672 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
673 if (op_data->op_suppgids[0] == body->mbo_gid ||
674 op_data->op_suppgids[1] == body->mbo_gid ||
675 !in_group_p(make_kgid(&init_user_ns, body->mbo_gid)))
676 GOTO(out, retval = ERR_PTR(-EACCES));
678 fid_zero(&op_data->op_fid2);
679 op_data->op_suppgids[1] = body->mbo_gid;
680 ptlrpc_req_finished(req);
682 ll_intent_release(it);
683 rc = md_intent_lock(ll_i2mdexp(parent), op_data, it, &req,
684 &ll_md_blocking_ast, 0);
688 GOTO(out, retval = ERR_PTR(rc));
690 rc = ll_lookup_it_finish(req, it, parent, &dentry);
692 ll_intent_release(it);
693 GOTO(out, retval = ERR_PTR(rc));
696 if ((it->it_op & IT_OPEN) && dentry->d_inode &&
697 !S_ISREG(dentry->d_inode->i_mode) &&
698 !S_ISDIR(dentry->d_inode->i_mode)) {
699 ll_release_openhandle(dentry, it);
701 ll_lookup_finish_locks(it, dentry);
703 GOTO(out, retval = (dentry == save) ? NULL : dentry);
706 if (op_data != NULL && !IS_ERR(op_data)) {
707 if (secctx != NULL && secctxlen != NULL) {
708 /* caller needs sec ctx info, so reset it in op_data to
709 * prevent it from being freed */
710 op_data->op_file_secctx = NULL;
711 op_data->op_file_secctx_size = 0;
713 ll_finish_md_op_data(op_data);
716 ptlrpc_req_finished(req);
720 #ifdef HAVE_IOP_ATOMIC_OPEN
721 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
724 struct lookup_intent *itp, it = { .it_op = IT_GETATTR };
727 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), flags=%u\n",
728 dentry->d_name.len, dentry->d_name.name,
729 PFID(ll_inode2fid(parent)), parent, flags);
732 * Optimize away (CREATE && !OPEN). Let .create handle the race.
733 * but only if we have write permissions there, otherwise we need
734 * to proceed with lookup. LU-4185
736 if ((flags & LOOKUP_CREATE) && !(flags & LOOKUP_OPEN) &&
737 (inode_permission(parent, MAY_WRITE | MAY_EXEC) == 0))
740 if (flags & (LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE))
744 de = ll_lookup_it(parent, dentry, itp, NULL, NULL);
747 ll_intent_release(itp);
753 * For cached negative dentry and new dentry, handle lookup/create/open
756 static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
757 struct file *file, unsigned open_flags,
758 umode_t mode, int *opened)
760 struct lookup_intent *it;
762 long long lookup_flags = LOOKUP_OPEN;
768 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), file %p,"
769 "open_flags %x, mode %x opened %d\n",
770 dentry->d_name.len, dentry->d_name.name,
771 PFID(ll_inode2fid(dir)), dir, file, open_flags, mode, *opened);
773 /* Only negative dentries enter here */
774 LASSERT(dentry->d_inode == NULL);
776 if (!d_unhashed(dentry)) {
777 /* A valid negative dentry that just passed revalidation,
778 * there's little point to try and open it server-side,
779 * even though there's a minuscule chance it might succeed.
780 * Either way it's a valid race to just return -ENOENT here.
782 if (!(open_flags & O_CREAT))
785 /* Otherwise we just unhash it to be rehashed afresh via
786 * lookup if necessary
791 OBD_ALLOC(it, sizeof(*it));
796 if (open_flags & O_CREAT) {
797 it->it_op |= IT_CREAT;
798 lookup_flags |= LOOKUP_CREATE;
800 it->it_create_mode = (mode & S_IALLUGO) | S_IFREG;
801 it->it_flags = (open_flags & ~O_ACCMODE) | OPEN_FMODE(open_flags);
802 it->it_flags &= ~MDS_OPEN_FL_INTERNAL;
804 /* Dentry added to dcache tree in ll_lookup_it */
805 de = ll_lookup_it(dir, dentry, it, &secctx, &secctxlen);
811 CFS_FAIL_TIMEOUT(OBD_FAIL_LLITE_CREATE_FILE_PAUSE, cfs_fail_val);
814 if (it_disposition(it, DISP_OPEN_CREATE)) {
815 /* Dentry instantiated in ll_create_it. */
816 rc = ll_create_it(dir, dentry, it, secctx, secctxlen);
817 security_release_secctx(secctx, secctxlen);
819 /* We dget in ll_splice_alias. */
825 *opened |= FILE_CREATED;
827 if (dentry->d_inode && it_disposition(it, DISP_OPEN_OPEN)) {
829 if (S_ISFIFO(dentry->d_inode->i_mode)) {
830 /* We cannot call open here as it might
831 * deadlock. This case is unreachable in
832 * practice because of OBD_CONNECT_NODEVOH. */
833 rc = finish_no_open(file, de);
835 file->private_data = it;
836 rc = finish_open(file, dentry, NULL, opened);
837 /* We dget in ll_splice_alias. finish_open takes
838 * care of dget for fd open.
844 rc = finish_no_open(file, de);
849 ll_intent_release(it);
850 OBD_FREE(it, sizeof(*it));
855 #else /* !HAVE_IOP_ATOMIC_OPEN */
856 static struct lookup_intent *
857 ll_convert_intent(struct open_intent *oit, int lookup_flags, bool is_readonly)
859 struct lookup_intent *it;
863 return ERR_PTR(-ENOMEM);
865 if (lookup_flags & LOOKUP_OPEN) {
867 /* Avoid file creation for ro bind mount point(is_readonly) */
868 if ((lookup_flags & LOOKUP_CREATE) && !is_readonly)
869 it->it_op |= IT_CREAT;
870 it->it_create_mode = (oit->create_mode & S_IALLUGO) | S_IFREG;
871 it->it_flags = ll_namei_to_lookup_intent_flag(oit->flags &
872 ~(is_readonly ? O_CREAT : 0));
873 it->it_flags &= ~MDS_OPEN_FL_INTERNAL;
875 it->it_op = IT_GETATTR;
881 static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
882 struct nameidata *nd)
887 if (nd && !(nd->flags & (LOOKUP_CONTINUE|LOOKUP_PARENT))) {
888 struct lookup_intent *it;
890 if (ll_d2d(dentry) && ll_d2d(dentry)->lld_it) {
891 it = ll_d2d(dentry)->lld_it;
892 ll_d2d(dentry)->lld_it = NULL;
895 * Optimize away (CREATE && !OPEN). Let .create handle
896 * the race. But only if we have write permissions
897 * there, otherwise we need to proceed with lookup.
900 if ((nd->flags & LOOKUP_CREATE) &&
901 !(nd->flags & LOOKUP_OPEN) &&
902 (inode_permission(parent,
903 MAY_WRITE | MAY_EXEC) == 0))
906 it = ll_convert_intent(&nd->intent.open, nd->flags,
907 (nd->path.mnt->mnt_flags & MNT_READONLY) ||
908 (nd->path.mnt->mnt_sb->s_flags & MS_RDONLY));
910 RETURN((struct dentry *)it);
913 de = ll_lookup_it(parent, dentry, it, NULL, NULL);
916 if ((nd->flags & LOOKUP_OPEN) && !IS_ERR(dentry)) { /* Open */
917 if (dentry->d_inode &&
918 it_disposition(it, DISP_OPEN_OPEN)) { /* nocreate */
919 if (S_ISFIFO(dentry->d_inode->i_mode)) {
920 /* We cannot call open here as it might
921 * deadlock. This case is unreachable in
922 * practice because of
923 * OBD_CONNECT_NODEVOH. */
927 nd->intent.open.file->private_data = it;
928 filp = lookup_instantiate_filp(nd,
934 de = (struct dentry *)filp;
937 } else if (it_disposition(it, DISP_OPEN_CREATE)) {
938 /* XXX This can only reliably work on assumption
939 * that there are NO hashed negative dentries.*/
940 ll_d2d(dentry)->lld_it = it;
941 it = NULL; /* Will be freed in ll_create_nd */
942 /* We absolutely depend on ll_create_nd to be
943 * called to not leak this intent and possible
944 * data attached to it */
949 ll_intent_release(it);
950 OBD_FREE(it, sizeof(*it));
953 de = ll_lookup_it(parent, dentry, NULL, NULL, NULL);
958 #endif /* HAVE_IOP_ATOMIC_OPEN */
960 /* We depend on "mode" being set with the proper file type/umask by now */
961 static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
963 struct inode *inode = NULL;
964 struct ptlrpc_request *request = NULL;
965 struct ll_sb_info *sbi = ll_i2sbi(dir);
969 LASSERT(it && it->it_disposition);
971 LASSERT(it_disposition(it, DISP_ENQ_CREATE_REF));
972 request = it->it_request;
973 it_clear_disposition(it, DISP_ENQ_CREATE_REF);
974 rc = ll_prep_inode(&inode, request, dir->i_sb, it);
976 GOTO(out, inode = ERR_PTR(rc));
978 /* Pause to allow for a race with concurrent access by fid */
979 OBD_FAIL_TIMEOUT(OBD_FAIL_LLITE_CREATE_NODE_PAUSE, cfs_fail_val);
981 /* We asked for a lock on the directory, but were granted a
982 * lock on the inode. Since we finally have an inode pointer,
983 * stuff it in the lock. */
984 CDEBUG(D_DLMTRACE, "setting l_ast_data to inode "DFID"(%p)\n",
985 PFID(ll_inode2fid(inode)), inode);
986 ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
989 ptlrpc_req_finished(request);
994 * By the time this is called, we already have created the directory cache
995 * entry for the new file, but it is so far negative - it has no inode.
997 * We defer creating the OBD object(s) until open, to keep the intent and
998 * non-intent code paths similar, and also because we do not have the MDS
999 * inode number before calling ll_create_node() (which is needed for LOV),
1000 * so we would need to do yet another RPC to the MDS to store the LOV EA
1001 * data on the MDS. If needed, we would pass the PACKED lmm as data and
1002 * lmm_size in datalen (the MDS still has code which will handle that).
1004 * If the create succeeds, we fill in the inode information
1005 * with d_instantiate().
1007 static int ll_create_it(struct inode *dir, struct dentry *dentry,
1008 struct lookup_intent *it,
1009 void *secctx, __u32 secctxlen)
1011 struct inode *inode;
1015 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), intent=%s\n",
1016 dentry->d_name.len, dentry->d_name.name,
1017 PFID(ll_inode2fid(dir)), dir, LL_IT2STR(it));
1019 rc = it_open_error(DISP_OPEN_CREATE, it);
1023 inode = ll_create_node(dir, it);
1025 RETURN(PTR_ERR(inode));
1027 if ((ll_i2sbi(inode)->ll_flags & LL_SBI_FILE_SECCTX) &&
1030 /* must be done before d_instantiate, because it calls
1031 * security_d_instantiate, which means a getxattr if security
1032 * context is not set yet */
1033 rc = security_inode_notifysecctx(inode, secctx, secctxlen);
1034 inode_unlock(inode);
1039 d_instantiate(dentry, inode);
1041 if (!(ll_i2sbi(inode)->ll_flags & LL_SBI_FILE_SECCTX)) {
1042 rc = ll_inode_init_security(dentry, inode, dir);
1050 void ll_update_times(struct ptlrpc_request *request, struct inode *inode)
1052 struct mdt_body *body = req_capsule_server_get(&request->rq_pill,
1056 if (body->mbo_valid & OBD_MD_FLMTIME &&
1057 body->mbo_mtime > LTIME_S(inode->i_mtime)) {
1058 CDEBUG(D_INODE, "setting fid "DFID" mtime from %lu to %llu"
1059 "\n", PFID(ll_inode2fid(inode)),
1060 LTIME_S(inode->i_mtime), body->mbo_mtime);
1061 LTIME_S(inode->i_mtime) = body->mbo_mtime;
1064 if (body->mbo_valid & OBD_MD_FLCTIME &&
1065 body->mbo_ctime > LTIME_S(inode->i_ctime))
1066 LTIME_S(inode->i_ctime) = body->mbo_ctime;
1069 static int ll_new_node(struct inode *dir, struct dentry *dchild,
1070 const char *tgt, umode_t mode, int rdev, __u32 opc)
1072 struct qstr *name = &dchild->d_name;
1073 struct ptlrpc_request *request = NULL;
1074 struct md_op_data *op_data;
1075 struct inode *inode = NULL;
1076 struct ll_sb_info *sbi = ll_i2sbi(dir);
1081 if (unlikely(tgt != NULL))
1082 tgt_len = strlen(tgt) + 1;
1085 op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name,
1086 name->len, 0, opc, NULL);
1087 if (IS_ERR(op_data))
1088 GOTO(err_exit, err = PTR_ERR(op_data));
1090 if (sbi->ll_flags & LL_SBI_FILE_SECCTX) {
1091 err = ll_dentry_init_security(dchild, mode, &dchild->d_name,
1092 &op_data->op_file_secctx_name,
1093 &op_data->op_file_secctx,
1094 &op_data->op_file_secctx_size);
1096 GOTO(err_exit, err);
1099 err = md_create(sbi->ll_md_exp, op_data, tgt, tgt_len, mode,
1100 from_kuid(&init_user_ns, current_fsuid()),
1101 from_kgid(&init_user_ns, current_fsgid()),
1102 cfs_curproc_cap_pack(), rdev, &request);
1103 if (err < 0 && err != -EREMOTE)
1104 GOTO(err_exit, err);
1106 /* If the client doesn't know where to create a subdirectory (or
1107 * in case of a race that sends the RPC to the wrong MDS), the
1108 * MDS will return -EREMOTE and the client will fetch the layout
1109 * of the directory, then create the directory on the right MDT. */
1110 if (unlikely(err == -EREMOTE)) {
1111 struct ll_inode_info *lli = ll_i2info(dir);
1112 struct lmv_user_md *lum;
1116 ptlrpc_req_finished(request);
1119 err2 = ll_dir_getstripe(dir, (void **)&lum, &lumsize, &request,
1120 OBD_MD_DEFAULT_MEA);
1122 /* Update stripe_offset and retry */
1123 lli->lli_def_stripe_offset = lum->lum_stripe_offset;
1124 } else if (err2 == -ENODATA &&
1125 lli->lli_def_stripe_offset != -1) {
1126 /* If there are no default stripe EA on the MDT, but the
1127 * client has default stripe, then it probably means
1128 * default stripe EA has just been deleted. */
1129 lli->lli_def_stripe_offset = -1;
1131 GOTO(err_exit, err);
1134 ptlrpc_req_finished(request);
1136 ll_finish_md_op_data(op_data);
1140 ll_update_times(request, dir);
1142 CFS_FAIL_TIMEOUT(OBD_FAIL_LLITE_NEWNODE_PAUSE, cfs_fail_val);
1144 err = ll_prep_inode(&inode, request, dchild->d_sb, NULL);
1146 GOTO(err_exit, err);
1148 if (sbi->ll_flags & LL_SBI_FILE_SECCTX) {
1150 /* must be done before d_instantiate, because it calls
1151 * security_d_instantiate, which means a getxattr if security
1152 * context is not set yet */
1153 err = security_inode_notifysecctx(inode,
1154 op_data->op_file_secctx,
1155 op_data->op_file_secctx_size);
1156 inode_unlock(inode);
1158 GOTO(err_exit, err);
1161 d_instantiate(dchild, inode);
1163 if (!(sbi->ll_flags & LL_SBI_FILE_SECCTX)) {
1164 err = ll_inode_init_security(dchild, inode, dir);
1166 GOTO(err_exit, err);
1171 if (request != NULL)
1172 ptlrpc_req_finished(request);
1174 if (!IS_ERR_OR_NULL(op_data))
1175 ll_finish_md_op_data(op_data);
1180 static int ll_mknod(struct inode *dir, struct dentry *dchild, ll_umode_t mode,
1183 struct qstr *name = &dchild->d_name;
1187 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p) mode %o dev %x\n",
1188 name->len, name->name, PFID(ll_inode2fid(dir)), dir,
1191 if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
1192 mode &= ~current_umask();
1194 switch (mode & S_IFMT) {
1196 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
1202 err = ll_new_node(dir, dchild, NULL, mode, old_encode_dev(rdev),
1213 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKNOD, 1);
1218 #ifdef HAVE_IOP_ATOMIC_OPEN
1220 * Plain create. Intent create is handled in atomic_open.
1222 static int ll_create_nd(struct inode *dir, struct dentry *dentry,
1223 umode_t mode, bool want_excl)
1227 CFS_FAIL_TIMEOUT(OBD_FAIL_LLITE_CREATE_FILE_PAUSE, cfs_fail_val);
1229 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), "
1230 "flags=%u, excl=%d\n", dentry->d_name.len,
1231 dentry->d_name.name, PFID(ll_inode2fid(dir)),
1232 dir, mode, want_excl);
1234 /* Using mknod(2) to create a regular file is designed to not recognize
1235 * volatile file name, so we use ll_mknod() here. */
1236 rc = ll_mknod(dir, dentry, mode, 0);
1238 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
1240 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, unhashed %d\n",
1241 dentry->d_name.len, dentry->d_name.name, d_unhashed(dentry));
1245 #else /* !HAVE_IOP_ATOMIC_OPEN */
1246 static int ll_create_nd(struct inode *dir, struct dentry *dentry,
1247 ll_umode_t mode, struct nameidata *nd)
1249 struct ll_dentry_data *lld = ll_d2d(dentry);
1250 struct lookup_intent *it = NULL;
1253 CFS_FAIL_TIMEOUT(OBD_FAIL_LLITE_CREATE_FILE_PAUSE, cfs_fail_val);
1259 /* LU-8559: use LUSTRE_OPC_CREATE for non atomic open case
1260 * so that volatile file name is recoginized.
1261 * Mknod(2), however, is designed to not recognize volatile
1262 * file name to avoid inode leak under orphan directory until
1264 return ll_new_node(dir, dentry, NULL, mode, 0,
1270 /* Was there an error? Propagate it! */
1271 if (it->it_status) {
1276 rc = ll_create_it(dir, dentry, it, NULL, 0);
1277 if (nd && (nd->flags & LOOKUP_OPEN) && dentry->d_inode) { /* Open */
1280 nd->intent.open.file->private_data = it;
1281 filp = lookup_instantiate_filp(nd, dentry, NULL);
1287 ll_intent_release(it);
1288 OBD_FREE(it, sizeof(*it));
1291 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
1295 #endif /* HAVE_IOP_ATOMIC_OPEN */
1297 static int ll_symlink(struct inode *dir, struct dentry *dchild,
1298 const char *oldpath)
1300 struct qstr *name = &dchild->d_name;
1304 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p), target=%.*s\n",
1305 name->len, name->name, PFID(ll_inode2fid(dir)),
1306 dir, 3000, oldpath);
1308 err = ll_new_node(dir, dchild, oldpath, S_IFLNK | S_IRWXUGO, 0,
1309 LUSTRE_OPC_SYMLINK);
1312 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_SYMLINK, 1);
1317 static int ll_link(struct dentry *old_dentry, struct inode *dir,
1318 struct dentry *new_dentry)
1320 struct inode *src = old_dentry->d_inode;
1321 struct qstr *name = &new_dentry->d_name;
1322 struct ll_sb_info *sbi = ll_i2sbi(dir);
1323 struct ptlrpc_request *request = NULL;
1324 struct md_op_data *op_data;
1328 CDEBUG(D_VFSTRACE, "VFS Op: inode="DFID"(%p), dir="DFID"(%p), "
1329 "target=%.*s\n", PFID(ll_inode2fid(src)), src,
1330 PFID(ll_inode2fid(dir)), dir, name->len, name->name);
1332 op_data = ll_prep_md_op_data(NULL, src, dir, name->name, name->len,
1333 0, LUSTRE_OPC_ANY, NULL);
1334 if (IS_ERR(op_data))
1335 RETURN(PTR_ERR(op_data));
1337 err = md_link(sbi->ll_md_exp, op_data, &request);
1338 ll_finish_md_op_data(op_data);
1342 ll_update_times(request, dir);
1343 ll_stats_ops_tally(sbi, LPROC_LL_LINK, 1);
1346 ptlrpc_req_finished(request);
1350 static int ll_mkdir(struct inode *dir, struct dentry *dchild, ll_umode_t mode)
1352 struct qstr *name = &dchild->d_name;
1356 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p)\n",
1357 name->len, name->name, PFID(ll_inode2fid(dir)), dir);
1359 if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
1360 mode &= ~current_umask();
1362 mode = (mode & (S_IRWXUGO|S_ISVTX)) | S_IFDIR;
1364 err = ll_new_node(dir, dchild, NULL, mode, 0, LUSTRE_OPC_MKDIR);
1366 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKDIR, 1);
1371 static int ll_rmdir(struct inode *dir, struct dentry *dchild)
1373 struct qstr *name = &dchild->d_name;
1374 struct ptlrpc_request *request = NULL;
1375 struct md_op_data *op_data;
1379 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p)\n",
1380 name->len, name->name, PFID(ll_inode2fid(dir)), dir);
1382 if (unlikely(d_mountpoint(dchild)))
1385 op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name, name->len,
1386 S_IFDIR, LUSTRE_OPC_ANY, NULL);
1387 if (IS_ERR(op_data))
1388 RETURN(PTR_ERR(op_data));
1390 if (dchild->d_inode != NULL)
1391 op_data->op_fid3 = *ll_inode2fid(dchild->d_inode);
1393 op_data->op_fid2 = op_data->op_fid3;
1394 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
1395 ll_finish_md_op_data(op_data);
1397 ll_update_times(request, dir);
1398 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
1401 ptlrpc_req_finished(request);
1408 int ll_rmdir_entry(struct inode *dir, char *name, int namelen)
1410 struct ptlrpc_request *request = NULL;
1411 struct md_op_data *op_data;
1415 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p)\n",
1416 namelen, name, PFID(ll_inode2fid(dir)), dir);
1418 op_data = ll_prep_md_op_data(NULL, dir, NULL, name, strlen(name),
1419 S_IFDIR, LUSTRE_OPC_ANY, NULL);
1420 if (IS_ERR(op_data))
1421 RETURN(PTR_ERR(op_data));
1422 op_data->op_cli_flags |= CLI_RM_ENTRY;
1423 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
1424 ll_finish_md_op_data(op_data);
1426 ll_update_times(request, dir);
1427 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
1430 ptlrpc_req_finished(request);
1434 static int ll_unlink(struct inode *dir, struct dentry *dchild)
1436 struct qstr *name = &dchild->d_name;
1437 struct ptlrpc_request *request = NULL;
1438 struct md_op_data *op_data;
1439 struct mdt_body *body;
1442 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, dir="DFID"(%p)\n",
1443 name->len, name->name, PFID(ll_inode2fid(dir)), dir);
1446 * XXX: unlink bind mountpoint maybe call to here,
1447 * just check it as vfs_unlink does.
1449 if (unlikely(d_mountpoint(dchild)))
1452 op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name, name->len, 0,
1453 LUSTRE_OPC_ANY, NULL);
1454 if (IS_ERR(op_data))
1455 RETURN(PTR_ERR(op_data));
1457 op_data->op_fid3 = *ll_inode2fid(dchild->d_inode);
1459 op_data->op_fid2 = op_data->op_fid3;
1460 rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
1461 ll_finish_md_op_data(op_data);
1466 * The server puts attributes in on the last unlink, use them to update
1467 * the link count so the inode can be freed immediately.
1469 body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
1470 if (body->mbo_valid & OBD_MD_FLNLINK)
1471 set_nlink(dchild->d_inode, body->mbo_nlink);
1473 ll_update_times(request, dir);
1474 ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_UNLINK, 1);
1477 ptlrpc_req_finished(request);
1481 static int ll_rename(struct inode *src, struct dentry *src_dchild,
1482 struct inode *tgt, struct dentry *tgt_dchild
1483 #ifdef HAVE_IOPS_RENAME_WITH_FLAGS
1484 , unsigned int flags
1488 struct qstr *src_name = &src_dchild->d_name;
1489 struct qstr *tgt_name = &tgt_dchild->d_name;
1490 struct ptlrpc_request *request = NULL;
1491 struct ll_sb_info *sbi = ll_i2sbi(src);
1492 struct md_op_data *op_data;
1496 #ifdef HAVE_IOPS_RENAME_WITH_FLAGS
1501 CDEBUG(D_VFSTRACE, "VFS Op:oldname=%.*s, src_dir="DFID
1502 "(%p), newname=%.*s, tgt_dir="DFID"(%p)\n",
1503 src_name->len, src_name->name,
1504 PFID(ll_inode2fid(src)), src, tgt_name->len,
1505 tgt_name->name, PFID(ll_inode2fid(tgt)), tgt);
1507 if (unlikely(d_mountpoint(src_dchild) || d_mountpoint(tgt_dchild)))
1510 op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0,
1511 LUSTRE_OPC_ANY, NULL);
1512 if (IS_ERR(op_data))
1513 RETURN(PTR_ERR(op_data));
1515 if (src_dchild->d_inode != NULL)
1516 op_data->op_fid3 = *ll_inode2fid(src_dchild->d_inode);
1518 if (tgt_dchild->d_inode != NULL)
1519 op_data->op_fid4 = *ll_inode2fid(tgt_dchild->d_inode);
1521 err = md_rename(sbi->ll_md_exp, op_data,
1522 src_name->name, src_name->len,
1523 tgt_name->name, tgt_name->len, &request);
1524 ll_finish_md_op_data(op_data);
1526 ll_update_times(request, src);
1527 ll_update_times(request, tgt);
1528 ll_stats_ops_tally(sbi, LPROC_LL_RENAME, 1);
1531 ptlrpc_req_finished(request);
1534 d_move(src_dchild, tgt_dchild);
1539 const struct inode_operations ll_dir_inode_operations = {
1541 #ifdef HAVE_IOP_ATOMIC_OPEN
1542 .atomic_open = ll_atomic_open,
1544 .lookup = ll_lookup_nd,
1545 .create = ll_create_nd,
1546 /* We need all these non-raw things for NFSD, to not patch it. */
1547 .unlink = ll_unlink,
1550 .symlink = ll_symlink,
1552 .rename = ll_rename,
1553 .setattr = ll_setattr,
1554 .getattr = ll_getattr,
1555 .permission = ll_inode_permission,
1556 #ifdef HAVE_IOP_XATTR
1557 .setxattr = ll_setxattr,
1558 .getxattr = ll_getxattr,
1559 .removexattr = ll_removexattr,
1561 .listxattr = ll_listxattr,
1562 #ifdef HAVE_IOP_GET_ACL
1563 .get_acl = ll_get_acl,
1565 #ifdef HAVE_IOP_SET_ACL
1566 .set_acl = ll_set_acl,
1570 const struct inode_operations ll_special_inode_operations = {
1571 .setattr = ll_setattr,
1572 .getattr = ll_getattr,
1573 .permission = ll_inode_permission,
1574 #ifdef HAVE_IOP_XATTR
1575 .setxattr = ll_setxattr,
1576 .getxattr = ll_getxattr,
1577 .removexattr = ll_removexattr,
1579 .listxattr = ll_listxattr,
1580 #ifdef HAVE_IOP_GET_ACL
1581 .get_acl = ll_get_acl,
1583 #ifdef HAVE_IOP_SET_ACL
1584 .set_acl = ll_set_acl,