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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 * Author: Peter Braam <braam@clusterfs.com>
39 * Author: Phil Schwan <phil@clusterfs.com>
40 * Author: Andreas Dilger <adilger@clusterfs.com>
43 #define DEBUG_SUBSYSTEM S_LLITE
44 #include <lustre_dlm.h>
45 #include <lustre_lite.h>
46 #include <linux/pagemap.h>
47 #include <linux/file.h>
48 #include "llite_internal.h"
49 #include <lustre/ll_fiemap.h>
51 #include "cl_object.h"
53 struct ll_file_data *ll_file_data_get(void)
55 struct ll_file_data *fd;
57 OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, CFS_ALLOC_IO);
58 fd->fd_write_failed = false;
62 static void ll_file_data_put(struct ll_file_data *fd)
65 OBD_SLAB_FREE_PTR(fd, ll_file_data_slab);
68 void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
69 struct lustre_handle *fh)
71 op_data->op_fid1 = ll_i2info(inode)->lli_fid;
72 op_data->op_attr.ia_mode = inode->i_mode;
73 op_data->op_attr.ia_atime = inode->i_atime;
74 op_data->op_attr.ia_mtime = inode->i_mtime;
75 op_data->op_attr.ia_ctime = inode->i_ctime;
76 op_data->op_attr.ia_size = i_size_read(inode);
77 op_data->op_attr_blocks = inode->i_blocks;
78 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags =
79 ll_inode_to_ext_flags(inode->i_flags);
80 op_data->op_ioepoch = ll_i2info(inode)->lli_ioepoch;
82 op_data->op_handle = *fh;
83 op_data->op_capa1 = ll_mdscapa_get(inode);
85 if (LLIF_DATA_MODIFIED & ll_i2info(inode)->lli_flags)
86 op_data->op_bias |= MDS_DATA_MODIFIED;
90 * Closes the IO epoch and packs all the attributes into @op_data for
93 static void ll_prepare_close(struct inode *inode, struct md_op_data *op_data,
94 struct obd_client_handle *och)
98 op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME_SET |
99 ATTR_MTIME_SET | ATTR_CTIME_SET;
101 if (!(och->och_flags & FMODE_WRITE))
104 if (!exp_connect_som(ll_i2mdexp(inode)) || !S_ISREG(inode->i_mode))
105 op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
107 ll_ioepoch_close(inode, op_data, &och, 0);
110 ll_pack_inode2opdata(inode, op_data, &och->och_fh);
111 ll_prep_md_op_data(op_data, inode, NULL, NULL,
112 0, 0, LUSTRE_OPC_ANY, NULL);
116 static int ll_close_inode_openhandle(struct obd_export *md_exp,
118 struct obd_client_handle *och)
120 struct obd_export *exp = ll_i2mdexp(inode);
121 struct md_op_data *op_data;
122 struct ptlrpc_request *req = NULL;
123 struct obd_device *obd = class_exp2obd(exp);
130 * XXX: in case of LMV, is this correct to access
133 CERROR("Invalid MDC connection handle "LPX64"\n",
134 ll_i2mdexp(inode)->exp_handle.h_cookie);
138 OBD_ALLOC_PTR(op_data);
140 GOTO(out, rc = -ENOMEM); // XXX We leak openhandle and request here.
142 ll_prepare_close(inode, op_data, och);
143 epoch_close = (op_data->op_flags & MF_EPOCH_CLOSE);
144 rc = md_close(md_exp, op_data, och->och_mod, &req);
146 /* This close must have the epoch closed. */
147 LASSERT(epoch_close);
148 /* MDS has instructed us to obtain Size-on-MDS attribute from
149 * OSTs and send setattr to back to MDS. */
150 rc = ll_som_update(inode, op_data);
152 CERROR("inode %lu mdc Size-on-MDS update failed: "
153 "rc = %d\n", inode->i_ino, rc);
157 CERROR("inode %lu mdc close failed: rc = %d\n",
161 /* DATA_MODIFIED flag was successfully sent on close, cancel data
162 * modification flag. */
163 if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
164 struct ll_inode_info *lli = ll_i2info(inode);
166 spin_lock(&lli->lli_lock);
167 lli->lli_flags &= ~LLIF_DATA_MODIFIED;
168 spin_unlock(&lli->lli_lock);
171 ll_finish_md_op_data(op_data);
174 rc = ll_objects_destroy(req, inode);
176 CERROR("inode %lu ll_objects destroy: rc = %d\n",
183 if (exp_connect_som(exp) && !epoch_close &&
184 S_ISREG(inode->i_mode) && (och->och_flags & FMODE_WRITE)) {
185 ll_queue_done_writing(inode, LLIF_DONE_WRITING);
187 md_clear_open_replay_data(md_exp, och);
188 /* Free @och if it is not waiting for DONE_WRITING. */
189 och->och_fh.cookie = DEAD_HANDLE_MAGIC;
192 if (req) /* This is close request */
193 ptlrpc_req_finished(req);
197 int ll_md_real_close(struct inode *inode, int flags)
199 struct ll_inode_info *lli = ll_i2info(inode);
200 struct obd_client_handle **och_p;
201 struct obd_client_handle *och;
206 if (flags & FMODE_WRITE) {
207 och_p = &lli->lli_mds_write_och;
208 och_usecount = &lli->lli_open_fd_write_count;
209 } else if (flags & FMODE_EXEC) {
210 och_p = &lli->lli_mds_exec_och;
211 och_usecount = &lli->lli_open_fd_exec_count;
213 LASSERT(flags & FMODE_READ);
214 och_p = &lli->lli_mds_read_och;
215 och_usecount = &lli->lli_open_fd_read_count;
218 mutex_lock(&lli->lli_och_mutex);
219 if (*och_usecount) { /* There are still users of this handle, so
221 mutex_unlock(&lli->lli_och_mutex);
226 mutex_unlock(&lli->lli_och_mutex);
228 if (och) { /* There might be a race and somebody have freed this och
230 rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
237 int ll_md_close(struct obd_export *md_exp, struct inode *inode,
240 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
241 struct ll_inode_info *lli = ll_i2info(inode);
245 /* clear group lock, if present */
246 if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED))
247 ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid);
249 /* Let's see if we have good enough OPEN lock on the file and if
250 we can skip talking to MDS */
251 if (file->f_dentry->d_inode) { /* Can this ever be false? */
253 int flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK;
254 struct lustre_handle lockh;
255 struct inode *inode = file->f_dentry->d_inode;
256 ldlm_policy_data_t policy = {.l_inodebits={MDS_INODELOCK_OPEN}};
258 mutex_lock(&lli->lli_och_mutex);
259 if (fd->fd_omode & FMODE_WRITE) {
261 LASSERT(lli->lli_open_fd_write_count);
262 lli->lli_open_fd_write_count--;
263 } else if (fd->fd_omode & FMODE_EXEC) {
265 LASSERT(lli->lli_open_fd_exec_count);
266 lli->lli_open_fd_exec_count--;
269 LASSERT(lli->lli_open_fd_read_count);
270 lli->lli_open_fd_read_count--;
272 mutex_unlock(&lli->lli_och_mutex);
274 if (!md_lock_match(md_exp, flags, ll_inode2fid(inode),
275 LDLM_IBITS, &policy, lockmode,
277 rc = ll_md_real_close(file->f_dentry->d_inode,
281 CERROR("Releasing a file %p with negative dentry %p. Name %s",
282 file, file->f_dentry, file->f_dentry->d_name.name);
285 LUSTRE_FPRIVATE(file) = NULL;
286 ll_file_data_put(fd);
287 ll_capa_close(inode);
292 /* While this returns an error code, fput() the caller does not, so we need
293 * to make every effort to clean up all of our state here. Also, applications
294 * rarely check close errors and even if an error is returned they will not
295 * re-try the close call.
297 int ll_file_release(struct inode *inode, struct file *file)
299 struct ll_file_data *fd;
300 struct ll_sb_info *sbi = ll_i2sbi(inode);
301 struct ll_inode_info *lli = ll_i2info(inode);
305 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
306 inode->i_generation, inode);
308 #ifdef CONFIG_FS_POSIX_ACL
309 if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
310 inode == inode->i_sb->s_root->d_inode) {
311 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
314 if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) {
315 fd->fd_flags &= ~LL_FILE_RMTACL;
316 rct_del(&sbi->ll_rct, cfs_curproc_pid());
317 et_search_free(&sbi->ll_et, cfs_curproc_pid());
322 if (inode->i_sb->s_root != file->f_dentry)
323 ll_stats_ops_tally(sbi, LPROC_LL_RELEASE, 1);
324 fd = LUSTRE_FPRIVATE(file);
327 /* The last ref on @file, maybe not the the owner pid of statahead.
328 * Different processes can open the same dir, "ll_opendir_key" means:
329 * it is me that should stop the statahead thread. */
330 if (S_ISDIR(inode->i_mode) && lli->lli_opendir_key == fd &&
331 lli->lli_opendir_pid != 0)
332 ll_stop_statahead(inode, lli->lli_opendir_key);
334 if (inode->i_sb->s_root == file->f_dentry) {
335 LUSTRE_FPRIVATE(file) = NULL;
336 ll_file_data_put(fd);
340 if (!S_ISDIR(inode->i_mode)) {
341 lov_read_and_clear_async_rc(lli->lli_clob);
342 lli->lli_async_rc = 0;
345 rc = ll_md_close(sbi->ll_md_exp, inode, file);
347 if (CFS_FAIL_TIMEOUT_MS(OBD_FAIL_PTLRPC_DUMP_LOG, cfs_fail_val))
348 libcfs_debug_dumplog();
353 static int ll_intent_file_open(struct file *file, void *lmm,
354 int lmmsize, struct lookup_intent *itp)
356 struct ll_sb_info *sbi = ll_i2sbi(file->f_dentry->d_inode);
357 struct dentry *parent = file->f_dentry->d_parent;
358 const char *name = file->f_dentry->d_name.name;
359 const int len = file->f_dentry->d_name.len;
360 struct md_op_data *op_data;
361 struct ptlrpc_request *req;
362 __u32 opc = LUSTRE_OPC_ANY;
369 /* Usually we come here only for NFSD, and we want open lock.
370 But we can also get here with pre 2.6.15 patchless kernels, and in
371 that case that lock is also ok */
372 /* We can also get here if there was cached open handle in revalidate_it
373 * but it disappeared while we were getting from there to ll_file_open.
374 * But this means this file was closed and immediatelly opened which
375 * makes a good candidate for using OPEN lock */
376 /* If lmmsize & lmm are not 0, we are just setting stripe info
377 * parameters. No need for the open lock */
378 if (lmm == NULL && lmmsize == 0) {
379 itp->it_flags |= MDS_OPEN_LOCK;
380 if (itp->it_flags & FMODE_WRITE)
381 opc = LUSTRE_OPC_CREATE;
384 op_data = ll_prep_md_op_data(NULL, parent->d_inode,
385 file->f_dentry->d_inode, name, len,
388 RETURN(PTR_ERR(op_data));
390 itp->it_flags |= MDS_OPEN_BY_FID;
391 rc = md_intent_lock(sbi->ll_md_exp, op_data, lmm, lmmsize, itp,
392 0 /*unused */, &req, ll_md_blocking_ast, 0);
393 ll_finish_md_op_data(op_data);
395 /* reason for keep own exit path - don`t flood log
396 * with messages with -ESTALE errors.
398 if (!it_disposition(itp, DISP_OPEN_OPEN) ||
399 it_open_error(DISP_OPEN_OPEN, itp))
401 ll_release_openhandle(file->f_dentry, itp);
405 if (it_disposition(itp, DISP_LOOKUP_NEG))
406 GOTO(out, rc = -ENOENT);
408 if (rc != 0 || it_open_error(DISP_OPEN_OPEN, itp)) {
409 rc = rc ? rc : it_open_error(DISP_OPEN_OPEN, itp);
410 CDEBUG(D_VFSTRACE, "lock enqueue: err: %d\n", rc);
414 rc = ll_prep_inode(&file->f_dentry->d_inode, req, NULL);
415 if (!rc && itp->d.lustre.it_lock_mode)
416 ll_set_lock_data(sbi->ll_md_exp, file->f_dentry->d_inode,
420 ptlrpc_req_finished(itp->d.lustre.it_data);
421 it_clear_disposition(itp, DISP_ENQ_COMPLETE);
422 ll_intent_drop_lock(itp);
428 * Assign an obtained @ioepoch to client's inode. No lock is needed, MDS does
429 * not believe attributes if a few ioepoch holders exist. Attributes for
430 * previous ioepoch if new one is opened are also skipped by MDS.
432 void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch)
434 if (ioepoch && lli->lli_ioepoch != ioepoch) {
435 lli->lli_ioepoch = ioepoch;
436 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID"\n",
437 ioepoch, PFID(&lli->lli_fid));
441 static int ll_och_fill(struct obd_export *md_exp, struct ll_inode_info *lli,
442 struct lookup_intent *it, struct obd_client_handle *och)
444 struct ptlrpc_request *req = it->d.lustre.it_data;
445 struct mdt_body *body;
449 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
450 LASSERT(body != NULL); /* reply already checked out */
452 memcpy(&och->och_fh, &body->handle, sizeof(body->handle));
453 och->och_magic = OBD_CLIENT_HANDLE_MAGIC;
454 och->och_fid = lli->lli_fid;
455 och->och_flags = it->it_flags;
456 ll_ioepoch_open(lli, body->ioepoch);
458 return md_set_open_replay_data(md_exp, och, req);
461 int ll_local_open(struct file *file, struct lookup_intent *it,
462 struct ll_file_data *fd, struct obd_client_handle *och)
464 struct inode *inode = file->f_dentry->d_inode;
465 struct ll_inode_info *lli = ll_i2info(inode);
468 LASSERT(!LUSTRE_FPRIVATE(file));
473 struct ptlrpc_request *req = it->d.lustre.it_data;
474 struct mdt_body *body;
477 rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, lli, it, och);
481 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
482 if ((it->it_flags & FMODE_WRITE) &&
483 (body->valid & OBD_MD_FLSIZE))
484 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID"\n",
485 lli->lli_ioepoch, PFID(&lli->lli_fid));
488 LUSTRE_FPRIVATE(file) = fd;
489 ll_readahead_init(inode, &fd->fd_ras);
490 fd->fd_omode = it->it_flags;
494 /* Open a file, and (for the very first open) create objects on the OSTs at
495 * this time. If opened with O_LOV_DELAY_CREATE, then we don't do the object
496 * creation or open until ll_lov_setstripe() ioctl is called.
498 * If we already have the stripe MD locally then we don't request it in
499 * md_open(), by passing a lmm_size = 0.
501 * It is up to the application to ensure no other processes open this file
502 * in the O_LOV_DELAY_CREATE case, or the default striping pattern will be
503 * used. We might be able to avoid races of that sort by getting lli_open_sem
504 * before returning in the O_LOV_DELAY_CREATE case and dropping it here
505 * or in ll_file_release(), but I'm not sure that is desirable/necessary.
507 int ll_file_open(struct inode *inode, struct file *file)
509 struct ll_inode_info *lli = ll_i2info(inode);
510 struct lookup_intent *it, oit = { .it_op = IT_OPEN,
511 .it_flags = file->f_flags };
512 struct obd_client_handle **och_p = NULL;
513 __u64 *och_usecount = NULL;
514 struct ll_file_data *fd;
515 int rc = 0, opendir_set = 0;
518 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino,
519 inode->i_generation, inode, file->f_flags);
521 it = file->private_data; /* XXX: compat macro */
522 file->private_data = NULL; /* prevent ll_local_open assertion */
524 fd = ll_file_data_get();
526 GOTO(out_och_free, rc = -ENOMEM);
529 if (S_ISDIR(inode->i_mode)) {
530 spin_lock(&lli->lli_sa_lock);
531 if (lli->lli_opendir_key == NULL && lli->lli_sai == NULL &&
532 lli->lli_opendir_pid == 0) {
533 lli->lli_opendir_key = fd;
534 lli->lli_opendir_pid = cfs_curproc_pid();
537 spin_unlock(&lli->lli_sa_lock);
540 if (inode->i_sb->s_root == file->f_dentry) {
541 LUSTRE_FPRIVATE(file) = fd;
545 if (!it || !it->d.lustre.it_disposition) {
546 /* Convert f_flags into access mode. We cannot use file->f_mode,
547 * because everything but O_ACCMODE mask was stripped from
549 if ((oit.it_flags + 1) & O_ACCMODE)
551 if (file->f_flags & O_TRUNC)
552 oit.it_flags |= FMODE_WRITE;
554 /* kernel only call f_op->open in dentry_open. filp_open calls
555 * dentry_open after call to open_namei that checks permissions.
556 * Only nfsd_open call dentry_open directly without checking
557 * permissions and because of that this code below is safe. */
558 if (oit.it_flags & (FMODE_WRITE | FMODE_READ))
559 oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
561 /* We do not want O_EXCL here, presumably we opened the file
562 * already? XXX - NFS implications? */
563 oit.it_flags &= ~O_EXCL;
565 /* bug20584, if "it_flags" contains O_CREAT, the file will be
566 * created if necessary, then "IT_CREAT" should be set to keep
567 * consistent with it */
568 if (oit.it_flags & O_CREAT)
569 oit.it_op |= IT_CREAT;
575 /* Let's see if we have file open on MDS already. */
576 if (it->it_flags & FMODE_WRITE) {
577 och_p = &lli->lli_mds_write_och;
578 och_usecount = &lli->lli_open_fd_write_count;
579 } else if (it->it_flags & FMODE_EXEC) {
580 och_p = &lli->lli_mds_exec_och;
581 och_usecount = &lli->lli_open_fd_exec_count;
583 och_p = &lli->lli_mds_read_och;
584 och_usecount = &lli->lli_open_fd_read_count;
587 mutex_lock(&lli->lli_och_mutex);
588 if (*och_p) { /* Open handle is present */
589 if (it_disposition(it, DISP_OPEN_OPEN)) {
590 /* Well, there's extra open request that we do not need,
591 let's close it somehow. This will decref request. */
592 rc = it_open_error(DISP_OPEN_OPEN, it);
594 mutex_unlock(&lli->lli_och_mutex);
595 GOTO(out_openerr, rc);
598 ll_release_openhandle(file->f_dentry, it);
602 rc = ll_local_open(file, it, fd, NULL);
605 mutex_unlock(&lli->lli_och_mutex);
606 GOTO(out_openerr, rc);
609 LASSERT(*och_usecount == 0);
610 if (!it->d.lustre.it_disposition) {
611 /* We cannot just request lock handle now, new ELC code
612 means that one of other OPEN locks for this file
613 could be cancelled, and since blocking ast handler
614 would attempt to grab och_mutex as well, that would
615 result in a deadlock */
616 mutex_unlock(&lli->lli_och_mutex);
617 it->it_create_mode |= M_CHECK_STALE;
618 rc = ll_intent_file_open(file, NULL, 0, it);
619 it->it_create_mode &= ~M_CHECK_STALE;
621 GOTO(out_openerr, rc);
625 OBD_ALLOC(*och_p, sizeof (struct obd_client_handle));
627 GOTO(out_och_free, rc = -ENOMEM);
631 /* md_intent_lock() didn't get a request ref if there was an
632 * open error, so don't do cleanup on the request here
634 /* XXX (green): Should not we bail out on any error here, not
635 * just open error? */
636 rc = it_open_error(DISP_OPEN_OPEN, it);
638 GOTO(out_och_free, rc);
640 LASSERT(it_disposition(it, DISP_ENQ_OPEN_REF));
642 rc = ll_local_open(file, it, fd, *och_p);
644 GOTO(out_och_free, rc);
646 mutex_unlock(&lli->lli_och_mutex);
649 /* Must do this outside lli_och_mutex lock to prevent deadlock where
650 different kind of OPEN lock for this same inode gets cancelled
651 by ldlm_cancel_lru */
652 if (!S_ISREG(inode->i_mode))
653 GOTO(out_och_free, rc);
657 if (!lli->lli_has_smd) {
658 if (file->f_flags & O_LOV_DELAY_CREATE ||
659 !(file->f_mode & FMODE_WRITE)) {
660 CDEBUG(D_INODE, "object creation was delayed\n");
661 GOTO(out_och_free, rc);
664 file->f_flags &= ~O_LOV_DELAY_CREATE;
665 GOTO(out_och_free, rc);
669 if (och_p && *och_p) {
670 OBD_FREE(*och_p, sizeof (struct obd_client_handle));
671 *och_p = NULL; /* OBD_FREE writes some magic there */
674 mutex_unlock(&lli->lli_och_mutex);
677 if (opendir_set != 0)
678 ll_stop_statahead(inode, lli->lli_opendir_key);
680 ll_file_data_put(fd);
682 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_OPEN, 1);
685 if (it && it_disposition(it, DISP_ENQ_OPEN_REF)) {
686 ptlrpc_req_finished(it->d.lustre.it_data);
687 it_clear_disposition(it, DISP_ENQ_OPEN_REF);
693 /* Fills the obdo with the attributes for the lsm */
694 static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
695 struct obd_capa *capa, struct obdo *obdo,
696 __u64 ioepoch, int sync)
698 struct ptlrpc_request_set *set;
699 struct obd_info oinfo = { { { 0 } } };
704 LASSERT(lsm != NULL);
708 oinfo.oi_oa->o_id = lsm->lsm_object_id;
709 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
710 oinfo.oi_oa->o_mode = S_IFREG;
711 oinfo.oi_oa->o_ioepoch = ioepoch;
712 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE |
713 OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
714 OBD_MD_FLBLKSZ | OBD_MD_FLATIME |
715 OBD_MD_FLMTIME | OBD_MD_FLCTIME |
716 OBD_MD_FLGROUP | OBD_MD_FLEPOCH |
717 OBD_MD_FLDATAVERSION;
718 oinfo.oi_capa = capa;
720 oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS;
721 oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK;
724 set = ptlrpc_prep_set();
726 CERROR("can't allocate ptlrpc set\n");
729 rc = obd_getattr_async(exp, &oinfo, set);
731 rc = ptlrpc_set_wait(set);
732 ptlrpc_set_destroy(set);
735 oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ |
736 OBD_MD_FLATIME | OBD_MD_FLMTIME |
737 OBD_MD_FLCTIME | OBD_MD_FLSIZE |
738 OBD_MD_FLDATAVERSION);
743 * Performs the getattr on the inode and updates its fields.
744 * If @sync != 0, perform the getattr under the server-side lock.
746 int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
747 __u64 ioepoch, int sync)
749 struct obd_capa *capa = ll_mdscapa_get(inode);
750 struct lov_stripe_md *lsm;
754 lsm = ccc_inode_lsm_get(inode);
755 rc = ll_lsm_getattr(lsm, ll_i2dtexp(inode),
756 capa, obdo, ioepoch, sync);
759 obdo_refresh_inode(inode, obdo, obdo->o_valid);
761 "objid "LPX64" size %llu, blocks %llu, blksize %lu\n",
762 lsm ? lsm->lsm_object_id : 0, i_size_read(inode),
763 (unsigned long long)inode->i_blocks,
764 (unsigned long)ll_inode_blksize(inode));
766 ccc_inode_lsm_put(inode, lsm);
770 int ll_merge_lvb(struct inode *inode)
772 struct ll_inode_info *lli = ll_i2info(inode);
773 struct ll_sb_info *sbi = ll_i2sbi(inode);
774 struct lov_stripe_md *lsm;
780 lsm = ccc_inode_lsm_get(inode);
781 ll_inode_size_lock(inode);
782 inode_init_lvb(inode, &lvb);
784 /* merge timestamps the most resently obtained from mds with
785 timestamps obtained from osts */
786 lvb.lvb_atime = lli->lli_lvb.lvb_atime;
787 lvb.lvb_mtime = lli->lli_lvb.lvb_mtime;
788 lvb.lvb_ctime = lli->lli_lvb.lvb_ctime;
790 rc = obd_merge_lvb(sbi->ll_dt_exp, lsm, &lvb, 0);
791 cl_isize_write_nolock(inode, lvb.lvb_size);
793 CDEBUG(D_VFSTRACE, DFID" updating i_size "LPU64"\n",
794 PFID(&lli->lli_fid), lvb.lvb_size);
795 inode->i_blocks = lvb.lvb_blocks;
797 LTIME_S(inode->i_mtime) = lvb.lvb_mtime;
798 LTIME_S(inode->i_atime) = lvb.lvb_atime;
799 LTIME_S(inode->i_ctime) = lvb.lvb_ctime;
800 ll_inode_size_unlock(inode);
801 ccc_inode_lsm_put(inode, lsm);
806 int ll_glimpse_ioctl(struct ll_sb_info *sbi, struct lov_stripe_md *lsm,
809 struct obdo obdo = { 0 };
812 rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, &obdo, 0, 0);
814 st->st_size = obdo.o_size;
815 st->st_blocks = obdo.o_blocks;
816 st->st_mtime = obdo.o_mtime;
817 st->st_atime = obdo.o_atime;
818 st->st_ctime = obdo.o_ctime;
823 void ll_io_init(struct cl_io *io, const struct file *file, int write)
825 struct inode *inode = file->f_dentry->d_inode;
827 io->u.ci_rw.crw_nonblock = file->f_flags & O_NONBLOCK;
829 io->u.ci_wr.wr_append = !!(file->f_flags & O_APPEND);
830 io->u.ci_wr.wr_sync = file->f_flags & O_SYNC || IS_SYNC(inode);
832 io->ci_obj = ll_i2info(inode)->lli_clob;
833 io->ci_lockreq = CILR_MAYBE;
834 if (ll_file_nolock(file)) {
835 io->ci_lockreq = CILR_NEVER;
836 io->ci_no_srvlock = 1;
837 } else if (file->f_flags & O_APPEND) {
838 io->ci_lockreq = CILR_MANDATORY;
843 ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args,
844 struct file *file, enum cl_io_type iot,
845 loff_t *ppos, size_t count)
847 struct ll_inode_info *lli = ll_i2info(file->f_dentry->d_inode);
848 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
853 io = ccc_env_thread_io(env);
854 ll_io_init(io, file, iot == CIT_WRITE);
856 if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) {
857 struct vvp_io *vio = vvp_env_io(env);
858 struct ccc_io *cio = ccc_env_io(env);
859 int write_mutex_locked = 0;
861 cio->cui_fd = LUSTRE_FPRIVATE(file);
862 vio->cui_io_subtype = args->via_io_subtype;
864 switch (vio->cui_io_subtype) {
866 cio->cui_iov = args->u.normal.via_iov;
867 cio->cui_nrsegs = args->u.normal.via_nrsegs;
868 cio->cui_tot_nrsegs = cio->cui_nrsegs;
869 #ifndef HAVE_FILE_WRITEV
870 cio->cui_iocb = args->u.normal.via_iocb;
872 if ((iot == CIT_WRITE) &&
873 !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
874 if (mutex_lock_interruptible(&lli->
876 GOTO(out, result = -ERESTARTSYS);
877 write_mutex_locked = 1;
878 } else if (iot == CIT_READ) {
879 down_read(&lli->lli_trunc_sem);
883 vio->u.sendfile.cui_actor = args->u.sendfile.via_actor;
884 vio->u.sendfile.cui_target = args->u.sendfile.via_target;
887 vio->u.splice.cui_pipe = args->u.splice.via_pipe;
888 vio->u.splice.cui_flags = args->u.splice.via_flags;
891 CERROR("Unknow IO type - %u\n", vio->cui_io_subtype);
894 result = cl_io_loop(env, io);
895 if (write_mutex_locked)
896 mutex_unlock(&lli->lli_write_mutex);
897 else if (args->via_io_subtype == IO_NORMAL && iot == CIT_READ)
898 up_read(&lli->lli_trunc_sem);
900 /* cl_io_rw_init() handled IO */
901 result = io->ci_result;
904 if (io->ci_nob > 0) {
906 *ppos = io->u.ci_wr.wr.crw_pos;
912 if (iot == CIT_READ) {
914 ll_stats_ops_tally(ll_i2sbi(file->f_dentry->d_inode),
915 LPROC_LL_READ_BYTES, result);
916 } else if (iot == CIT_WRITE) {
918 ll_stats_ops_tally(ll_i2sbi(file->f_dentry->d_inode),
919 LPROC_LL_WRITE_BYTES, result);
920 fd->fd_write_failed = false;
922 fd->fd_write_failed = true;
931 * XXX: exact copy from kernel code (__generic_file_aio_write_nolock)
933 static int ll_file_get_iov_count(const struct iovec *iov,
934 unsigned long *nr_segs, size_t *count)
939 for (seg = 0; seg < *nr_segs; seg++) {
940 const struct iovec *iv = &iov[seg];
943 * If any segment has a negative length, or the cumulative
944 * length ever wraps negative then return -EINVAL.
947 if (unlikely((ssize_t)(cnt|iv->iov_len) < 0))
949 if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len))
954 cnt -= iv->iov_len; /* This segment is no good */
961 #ifdef HAVE_FILE_READV
962 static ssize_t ll_file_readv(struct file *file, const struct iovec *iov,
963 unsigned long nr_segs, loff_t *ppos)
966 struct vvp_io_args *args;
972 result = ll_file_get_iov_count(iov, &nr_segs, &count);
976 env = cl_env_get(&refcheck);
978 RETURN(PTR_ERR(env));
980 args = vvp_env_args(env, IO_NORMAL);
981 args->u.normal.via_iov = (struct iovec *)iov;
982 args->u.normal.via_nrsegs = nr_segs;
984 result = ll_file_io_generic(env, args, file, CIT_READ, ppos, count);
985 cl_env_put(env, &refcheck);
989 static ssize_t ll_file_read(struct file *file, char *buf, size_t count,
993 struct iovec *local_iov;
998 env = cl_env_get(&refcheck);
1000 RETURN(PTR_ERR(env));
1002 local_iov = &vvp_env_info(env)->vti_local_iov;
1003 local_iov->iov_base = (void __user *)buf;
1004 local_iov->iov_len = count;
1005 result = ll_file_readv(file, local_iov, 1, ppos);
1006 cl_env_put(env, &refcheck);
1011 static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
1012 unsigned long nr_segs, loff_t pos)
1015 struct vvp_io_args *args;
1021 result = ll_file_get_iov_count(iov, &nr_segs, &count);
1025 env = cl_env_get(&refcheck);
1027 RETURN(PTR_ERR(env));
1029 args = vvp_env_args(env, IO_NORMAL);
1030 args->u.normal.via_iov = (struct iovec *)iov;
1031 args->u.normal.via_nrsegs = nr_segs;
1032 args->u.normal.via_iocb = iocb;
1034 result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_READ,
1035 &iocb->ki_pos, count);
1036 cl_env_put(env, &refcheck);
1040 static ssize_t ll_file_read(struct file *file, char *buf, size_t count,
1044 struct iovec *local_iov;
1045 struct kiocb *kiocb;
1050 env = cl_env_get(&refcheck);
1052 RETURN(PTR_ERR(env));
1054 local_iov = &vvp_env_info(env)->vti_local_iov;
1055 kiocb = &vvp_env_info(env)->vti_kiocb;
1056 local_iov->iov_base = (void __user *)buf;
1057 local_iov->iov_len = count;
1058 init_sync_kiocb(kiocb, file);
1059 kiocb->ki_pos = *ppos;
1060 kiocb->ki_left = count;
1062 result = ll_file_aio_read(kiocb, local_iov, 1, kiocb->ki_pos);
1063 *ppos = kiocb->ki_pos;
1065 cl_env_put(env, &refcheck);
1071 * Write to a file (through the page cache).
1073 #ifdef HAVE_FILE_WRITEV
1074 static ssize_t ll_file_writev(struct file *file, const struct iovec *iov,
1075 unsigned long nr_segs, loff_t *ppos)
1078 struct vvp_io_args *args;
1084 result = ll_file_get_iov_count(iov, &nr_segs, &count);
1088 env = cl_env_get(&refcheck);
1090 RETURN(PTR_ERR(env));
1092 args = vvp_env_args(env, IO_NORMAL);
1093 args->u.normal.via_iov = (struct iovec *)iov;
1094 args->u.normal.via_nrsegs = nr_segs;
1096 result = ll_file_io_generic(env, args, file, CIT_WRITE, ppos, count);
1097 cl_env_put(env, &refcheck);
1101 static ssize_t ll_file_write(struct file *file, const char *buf, size_t count,
1105 struct iovec *local_iov;
1110 env = cl_env_get(&refcheck);
1112 RETURN(PTR_ERR(env));
1114 local_iov = &vvp_env_info(env)->vti_local_iov;
1115 local_iov->iov_base = (void __user *)buf;
1116 local_iov->iov_len = count;
1118 result = ll_file_writev(file, local_iov, 1, ppos);
1119 cl_env_put(env, &refcheck);
1123 #else /* AIO stuff */
1124 static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
1125 unsigned long nr_segs, loff_t pos)
1128 struct vvp_io_args *args;
1134 result = ll_file_get_iov_count(iov, &nr_segs, &count);
1138 env = cl_env_get(&refcheck);
1140 RETURN(PTR_ERR(env));
1142 args = vvp_env_args(env, IO_NORMAL);
1143 args->u.normal.via_iov = (struct iovec *)iov;
1144 args->u.normal.via_nrsegs = nr_segs;
1145 args->u.normal.via_iocb = iocb;
1147 result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE,
1148 &iocb->ki_pos, count);
1149 cl_env_put(env, &refcheck);
1153 static ssize_t ll_file_write(struct file *file, const char *buf, size_t count,
1157 struct iovec *local_iov;
1158 struct kiocb *kiocb;
1163 env = cl_env_get(&refcheck);
1165 RETURN(PTR_ERR(env));
1167 local_iov = &vvp_env_info(env)->vti_local_iov;
1168 kiocb = &vvp_env_info(env)->vti_kiocb;
1169 local_iov->iov_base = (void __user *)buf;
1170 local_iov->iov_len = count;
1171 init_sync_kiocb(kiocb, file);
1172 kiocb->ki_pos = *ppos;
1173 kiocb->ki_left = count;
1175 result = ll_file_aio_write(kiocb, local_iov, 1, kiocb->ki_pos);
1176 *ppos = kiocb->ki_pos;
1178 cl_env_put(env, &refcheck);
1184 #ifdef HAVE_KERNEL_SENDFILE
1186 * Send file content (through pagecache) somewhere with helper
1188 static ssize_t ll_file_sendfile(struct file *in_file, loff_t *ppos,size_t count,
1189 read_actor_t actor, void *target)
1192 struct vvp_io_args *args;
1197 env = cl_env_get(&refcheck);
1199 RETURN(PTR_ERR(env));
1201 args = vvp_env_args(env, IO_SENDFILE);
1202 args->u.sendfile.via_target = target;
1203 args->u.sendfile.via_actor = actor;
1205 result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
1206 cl_env_put(env, &refcheck);
1211 #ifdef HAVE_KERNEL_SPLICE_READ
1213 * Send file content (through pagecache) somewhere with helper
1215 static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos,
1216 struct pipe_inode_info *pipe, size_t count,
1220 struct vvp_io_args *args;
1225 env = cl_env_get(&refcheck);
1227 RETURN(PTR_ERR(env));
1229 args = vvp_env_args(env, IO_SPLICE);
1230 args->u.splice.via_pipe = pipe;
1231 args->u.splice.via_flags = flags;
1233 result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
1234 cl_env_put(env, &refcheck);
1239 static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq,
1242 struct obd_export *exp = ll_i2dtexp(inode);
1243 struct obd_trans_info oti = { 0 };
1244 struct obdo *oa = NULL;
1247 struct lov_stripe_md *lsm = NULL, *lsm2;
1254 lsm = ccc_inode_lsm_get(inode);
1256 GOTO(out, rc = -ENOENT);
1258 lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) *
1259 (lsm->lsm_stripe_count));
1261 OBD_ALLOC_LARGE(lsm2, lsm_size);
1263 GOTO(out, rc = -ENOMEM);
1267 oa->o_nlink = ost_idx;
1268 oa->o_flags |= OBD_FL_RECREATE_OBJS;
1269 oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
1270 obdo_from_inode(oa, inode, OBD_MD_FLTYPE | OBD_MD_FLATIME |
1271 OBD_MD_FLMTIME | OBD_MD_FLCTIME);
1272 obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
1273 memcpy(lsm2, lsm, lsm_size);
1274 ll_inode_size_lock(inode);
1275 rc = obd_create(NULL, exp, oa, &lsm2, &oti);
1276 ll_inode_size_unlock(inode);
1278 OBD_FREE_LARGE(lsm2, lsm_size);
1281 ccc_inode_lsm_put(inode, lsm);
1286 static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg)
1288 struct ll_recreate_obj ucreat;
1291 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1294 if (cfs_copy_from_user(&ucreat, (struct ll_recreate_obj *)arg,
1295 sizeof(struct ll_recreate_obj)))
1298 RETURN(ll_lov_recreate(inode, ucreat.lrc_id, 0,
1299 ucreat.lrc_ost_idx));
1302 static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg)
1309 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1312 if (cfs_copy_from_user(&fid, (struct lu_fid *)arg,
1313 sizeof(struct lu_fid)))
1316 id = fid_oid(&fid) | ((fid_seq(&fid) & 0xffff) << 32);
1317 ost_idx = (fid_seq(&fid) >> 16) & 0xffff;
1318 RETURN(ll_lov_recreate(inode, id, 0, ost_idx));
1321 int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
1322 int flags, struct lov_user_md *lum, int lum_size)
1324 struct lov_stripe_md *lsm = NULL;
1325 struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags};
1329 lsm = ccc_inode_lsm_get(inode);
1331 ccc_inode_lsm_put(inode, lsm);
1332 CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n",
1337 ll_inode_size_lock(inode);
1338 rc = ll_intent_file_open(file, lum, lum_size, &oit);
1341 rc = oit.d.lustre.it_status;
1343 GOTO(out_req_free, rc);
1345 ll_release_openhandle(file->f_dentry, &oit);
1348 ll_inode_size_unlock(inode);
1349 ll_intent_release(&oit);
1350 ccc_inode_lsm_put(inode, lsm);
1353 ptlrpc_req_finished((struct ptlrpc_request *) oit.d.lustre.it_data);
1357 int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
1358 struct lov_mds_md **lmmp, int *lmm_size,
1359 struct ptlrpc_request **request)
1361 struct ll_sb_info *sbi = ll_i2sbi(inode);
1362 struct mdt_body *body;
1363 struct lov_mds_md *lmm = NULL;
1364 struct ptlrpc_request *req = NULL;
1365 struct md_op_data *op_data;
1368 rc = ll_get_max_mdsize(sbi, &lmmsize);
1372 op_data = ll_prep_md_op_data(NULL, inode, NULL, filename,
1373 strlen(filename), lmmsize,
1374 LUSTRE_OPC_ANY, NULL);
1375 if (IS_ERR(op_data))
1376 RETURN(PTR_ERR(op_data));
1378 op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
1379 rc = md_getattr_name(sbi->ll_md_exp, op_data, &req);
1380 ll_finish_md_op_data(op_data);
1382 CDEBUG(D_INFO, "md_getattr_name failed "
1383 "on %s: rc %d\n", filename, rc);
1387 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1388 LASSERT(body != NULL); /* checked by mdc_getattr_name */
1390 lmmsize = body->eadatasize;
1392 if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
1394 GOTO(out, rc = -ENODATA);
1397 lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD, lmmsize);
1398 LASSERT(lmm != NULL);
1400 if ((lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V1)) &&
1401 (lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V3))) {
1402 GOTO(out, rc = -EPROTO);
1406 * This is coming from the MDS, so is probably in
1407 * little endian. We convert it to host endian before
1408 * passing it to userspace.
1410 if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC)) {
1411 /* if function called for directory - we should
1412 * avoid swab not existent lsm objects */
1413 if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) {
1414 lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
1415 if (S_ISREG(body->mode))
1416 lustre_swab_lov_user_md_objects(
1417 ((struct lov_user_md_v1 *)lmm)->lmm_objects,
1418 ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count);
1419 } else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) {
1420 lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
1421 if (S_ISREG(body->mode))
1422 lustre_swab_lov_user_md_objects(
1423 ((struct lov_user_md_v3 *)lmm)->lmm_objects,
1424 ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count);
1430 *lmm_size = lmmsize;
1435 static int ll_lov_setea(struct inode *inode, struct file *file,
1438 int flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE;
1439 struct lov_user_md *lump;
1440 int lum_size = sizeof(struct lov_user_md) +
1441 sizeof(struct lov_user_ost_data);
1445 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1448 OBD_ALLOC_LARGE(lump, lum_size);
1452 if (cfs_copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) {
1453 OBD_FREE_LARGE(lump, lum_size);
1457 rc = ll_lov_setstripe_ea_info(inode, file, flags, lump, lum_size);
1459 OBD_FREE_LARGE(lump, lum_size);
1463 static int ll_lov_setstripe(struct inode *inode, struct file *file,
1466 struct lov_user_md_v3 lumv3;
1467 struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
1468 struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg;
1469 struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg;
1472 int flags = FMODE_WRITE;
1475 /* first try with v1 which is smaller than v3 */
1476 lum_size = sizeof(struct lov_user_md_v1);
1477 if (cfs_copy_from_user(lumv1, lumv1p, lum_size))
1480 if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
1481 lum_size = sizeof(struct lov_user_md_v3);
1482 if (cfs_copy_from_user(&lumv3, lumv3p, lum_size))
1486 rc = ll_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size);
1488 struct lov_stripe_md *lsm;
1489 put_user(0, &lumv1p->lmm_stripe_count);
1490 lsm = ccc_inode_lsm_get(inode);
1491 rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode),
1492 0, lsm, (void *)arg);
1493 ccc_inode_lsm_put(inode, lsm);
1498 static int ll_lov_getstripe(struct inode *inode, unsigned long arg)
1500 struct lov_stripe_md *lsm;
1504 lsm = ccc_inode_lsm_get(inode);
1506 rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0,
1508 ccc_inode_lsm_put(inode, lsm);
1512 int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
1514 struct ll_inode_info *lli = ll_i2info(inode);
1515 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1516 struct ccc_grouplock grouplock;
1520 if (ll_file_nolock(file))
1521 RETURN(-EOPNOTSUPP);
1523 spin_lock(&lli->lli_lock);
1524 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1525 CWARN("group lock already existed with gid %lu\n",
1526 fd->fd_grouplock.cg_gid);
1527 spin_unlock(&lli->lli_lock);
1530 LASSERT(fd->fd_grouplock.cg_lock == NULL);
1531 spin_unlock(&lli->lli_lock);
1533 rc = cl_get_grouplock(cl_i2info(inode)->lli_clob,
1534 arg, (file->f_flags & O_NONBLOCK), &grouplock);
1538 spin_lock(&lli->lli_lock);
1539 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1540 spin_unlock(&lli->lli_lock);
1541 CERROR("another thread just won the race\n");
1542 cl_put_grouplock(&grouplock);
1546 fd->fd_flags |= LL_FILE_GROUP_LOCKED;
1547 fd->fd_grouplock = grouplock;
1548 spin_unlock(&lli->lli_lock);
1550 CDEBUG(D_INFO, "group lock %lu obtained\n", arg);
1554 int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg)
1556 struct ll_inode_info *lli = ll_i2info(inode);
1557 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1558 struct ccc_grouplock grouplock;
1561 spin_lock(&lli->lli_lock);
1562 if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
1563 spin_unlock(&lli->lli_lock);
1564 CWARN("no group lock held\n");
1567 LASSERT(fd->fd_grouplock.cg_lock != NULL);
1569 if (fd->fd_grouplock.cg_gid != arg) {
1570 CWARN("group lock %lu doesn't match current id %lu\n",
1571 arg, fd->fd_grouplock.cg_gid);
1572 spin_unlock(&lli->lli_lock);
1576 grouplock = fd->fd_grouplock;
1577 memset(&fd->fd_grouplock, 0, sizeof(fd->fd_grouplock));
1578 fd->fd_flags &= ~LL_FILE_GROUP_LOCKED;
1579 spin_unlock(&lli->lli_lock);
1581 cl_put_grouplock(&grouplock);
1582 CDEBUG(D_INFO, "group lock %lu released\n", arg);
1587 * Close inode open handle
1589 * \param dentry [in] dentry which contains the inode
1590 * \param it [in,out] intent which contains open info and result
1593 * \retval <0 failure
1595 int ll_release_openhandle(struct dentry *dentry, struct lookup_intent *it)
1597 struct inode *inode = dentry->d_inode;
1598 struct obd_client_handle *och;
1604 /* Root ? Do nothing. */
1605 if (dentry->d_inode->i_sb->s_root == dentry)
1608 /* No open handle to close? Move away */
1609 if (!it_disposition(it, DISP_OPEN_OPEN))
1612 LASSERT(it_open_error(DISP_OPEN_OPEN, it) == 0);
1614 OBD_ALLOC(och, sizeof(*och));
1616 GOTO(out, rc = -ENOMEM);
1618 ll_och_fill(ll_i2sbi(inode)->ll_md_exp,
1619 ll_i2info(inode), it, och);
1621 rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
1624 /* this one is in place of ll_file_open */
1625 if (it_disposition(it, DISP_ENQ_OPEN_REF)) {
1626 ptlrpc_req_finished(it->d.lustre.it_data);
1627 it_clear_disposition(it, DISP_ENQ_OPEN_REF);
1633 * Get size for inode for which FIEMAP mapping is requested.
1634 * Make the FIEMAP get_info call and returns the result.
1636 int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
1639 struct obd_export *exp = ll_i2dtexp(inode);
1640 struct lov_stripe_md *lsm = NULL;
1641 struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, };
1642 int vallen = num_bytes;
1646 /* Checks for fiemap flags */
1647 if (fiemap->fm_flags & ~LUSTRE_FIEMAP_FLAGS_COMPAT) {
1648 fiemap->fm_flags &= ~LUSTRE_FIEMAP_FLAGS_COMPAT;
1652 /* Check for FIEMAP_FLAG_SYNC */
1653 if (fiemap->fm_flags & FIEMAP_FLAG_SYNC) {
1654 rc = filemap_fdatawrite(inode->i_mapping);
1659 lsm = ccc_inode_lsm_get(inode);
1663 /* If the stripe_count > 1 and the application does not understand
1664 * DEVICE_ORDER flag, then it cannot interpret the extents correctly.
1666 if (lsm->lsm_stripe_count > 1 &&
1667 !(fiemap->fm_flags & FIEMAP_FLAG_DEVICE_ORDER))
1668 GOTO(out, rc = -EOPNOTSUPP);
1670 fm_key.oa.o_id = lsm->lsm_object_id;
1671 fm_key.oa.o_seq = lsm->lsm_object_seq;
1672 fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
1674 obdo_from_inode(&fm_key.oa, inode, OBD_MD_FLSIZE);
1675 obdo_set_parent_fid(&fm_key.oa, &ll_i2info(inode)->lli_fid);
1676 /* If filesize is 0, then there would be no objects for mapping */
1677 if (fm_key.oa.o_size == 0) {
1678 fiemap->fm_mapped_extents = 0;
1682 memcpy(&fm_key.fiemap, fiemap, sizeof(*fiemap));
1684 rc = obd_get_info(NULL, exp, sizeof(fm_key), &fm_key, &vallen,
1687 CERROR("obd_get_info failed: rc = %d\n", rc);
1690 ccc_inode_lsm_put(inode, lsm);
1694 int ll_fid2path(struct inode *inode, void *arg)
1696 struct obd_export *exp = ll_i2mdexp(inode);
1697 struct getinfo_fid2path *gfout, *gfin;
1701 if (!cfs_capable(CFS_CAP_DAC_READ_SEARCH) &&
1702 !(ll_i2sbi(inode)->ll_flags & LL_SBI_USER_FID2PATH))
1705 /* Need to get the buflen */
1706 OBD_ALLOC_PTR(gfin);
1709 if (cfs_copy_from_user(gfin, arg, sizeof(*gfin))) {
1714 outsize = sizeof(*gfout) + gfin->gf_pathlen;
1715 OBD_ALLOC(gfout, outsize);
1716 if (gfout == NULL) {
1720 memcpy(gfout, gfin, sizeof(*gfout));
1723 /* Call mdc_iocontrol */
1724 rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL);
1727 if (cfs_copy_to_user(arg, gfout, outsize))
1731 OBD_FREE(gfout, outsize);
1735 static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
1737 struct ll_user_fiemap *fiemap_s;
1738 size_t num_bytes, ret_bytes;
1739 unsigned int extent_count;
1742 /* Get the extent count so we can calculate the size of
1743 * required fiemap buffer */
1744 if (get_user(extent_count,
1745 &((struct ll_user_fiemap __user *)arg)->fm_extent_count))
1747 num_bytes = sizeof(*fiemap_s) + (extent_count *
1748 sizeof(struct ll_fiemap_extent));
1750 OBD_ALLOC_LARGE(fiemap_s, num_bytes);
1751 if (fiemap_s == NULL)
1754 /* get the fiemap value */
1755 if (copy_from_user(fiemap_s,(struct ll_user_fiemap __user *)arg,
1757 GOTO(error, rc = -EFAULT);
1759 /* If fm_extent_count is non-zero, read the first extent since
1760 * it is used to calculate end_offset and device from previous
1763 if (copy_from_user(&fiemap_s->fm_extents[0],
1764 (char __user *)arg + sizeof(*fiemap_s),
1765 sizeof(struct ll_fiemap_extent)))
1766 GOTO(error, rc = -EFAULT);
1769 rc = ll_do_fiemap(inode, fiemap_s, num_bytes);
1773 ret_bytes = sizeof(struct ll_user_fiemap);
1775 if (extent_count != 0)
1776 ret_bytes += (fiemap_s->fm_mapped_extents *
1777 sizeof(struct ll_fiemap_extent));
1779 if (copy_to_user((void *)arg, fiemap_s, ret_bytes))
1783 OBD_FREE_LARGE(fiemap_s, num_bytes);
1788 * Read the data_version for inode.
1790 * This value is computed using stripe object version on OST.
1791 * Version is computed using server side locking.
1793 * @param extent_lock Take extent lock. Not needed if a process is already
1794 * holding the OST object group locks.
1796 static int ll_data_version(struct inode *inode, __u64 *data_version,
1799 struct lov_stripe_md *lsm = NULL;
1800 struct ll_sb_info *sbi = ll_i2sbi(inode);
1801 struct obdo *obdo = NULL;
1805 /* If no stripe, we consider version is 0. */
1806 lsm = ccc_inode_lsm_get(inode);
1809 CDEBUG(D_INODE, "No object for inode\n");
1813 OBD_ALLOC_PTR(obdo);
1815 ccc_inode_lsm_put(inode, lsm);
1819 rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, extent_lock);
1821 if (!(obdo->o_valid & OBD_MD_FLDATAVERSION))
1824 *data_version = obdo->o_data_version;
1828 ccc_inode_lsm_put(inode, lsm);
1833 long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1835 struct inode *inode = file->f_dentry->d_inode;
1836 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1841 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino,
1842 inode->i_generation, inode, cmd);
1843 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
1845 /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
1846 if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
1850 case LL_IOC_GETFLAGS:
1851 /* Get the current value of the file flags */
1852 return put_user(fd->fd_flags, (int *)arg);
1853 case LL_IOC_SETFLAGS:
1854 case LL_IOC_CLRFLAGS:
1855 /* Set or clear specific file flags */
1856 /* XXX This probably needs checks to ensure the flags are
1857 * not abused, and to handle any flag side effects.
1859 if (get_user(flags, (int *) arg))
1862 if (cmd == LL_IOC_SETFLAGS) {
1863 if ((flags & LL_FILE_IGNORE_LOCK) &&
1864 !(file->f_flags & O_DIRECT)) {
1865 CERROR("%s: unable to disable locking on "
1866 "non-O_DIRECT file\n", current->comm);
1870 fd->fd_flags |= flags;
1872 fd->fd_flags &= ~flags;
1875 case LL_IOC_LOV_SETSTRIPE:
1876 RETURN(ll_lov_setstripe(inode, file, arg));
1877 case LL_IOC_LOV_SETEA:
1878 RETURN(ll_lov_setea(inode, file, arg));
1879 case LL_IOC_LOV_GETSTRIPE:
1880 RETURN(ll_lov_getstripe(inode, arg));
1881 case LL_IOC_RECREATE_OBJ:
1882 RETURN(ll_lov_recreate_obj(inode, arg));
1883 case LL_IOC_RECREATE_FID:
1884 RETURN(ll_lov_recreate_fid(inode, arg));
1885 case FSFILT_IOC_FIEMAP:
1886 RETURN(ll_ioctl_fiemap(inode, arg));
1887 case FSFILT_IOC_GETFLAGS:
1888 case FSFILT_IOC_SETFLAGS:
1889 RETURN(ll_iocontrol(inode, file, cmd, arg));
1890 case FSFILT_IOC_GETVERSION_OLD:
1891 case FSFILT_IOC_GETVERSION:
1892 RETURN(put_user(inode->i_generation, (int *)arg));
1893 case LL_IOC_GROUP_LOCK:
1894 RETURN(ll_get_grouplock(inode, file, arg));
1895 case LL_IOC_GROUP_UNLOCK:
1896 RETURN(ll_put_grouplock(inode, file, arg));
1897 case IOC_OBD_STATFS:
1898 RETURN(ll_obd_statfs(inode, (void *)arg));
1900 /* We need to special case any other ioctls we want to handle,
1901 * to send them to the MDS/OST as appropriate and to properly
1902 * network encode the arg field.
1903 case FSFILT_IOC_SETVERSION_OLD:
1904 case FSFILT_IOC_SETVERSION:
1906 case LL_IOC_FLUSHCTX:
1907 RETURN(ll_flush_ctx(inode));
1908 case LL_IOC_PATH2FID: {
1909 if (cfs_copy_to_user((void *)arg, ll_inode2fid(inode),
1910 sizeof(struct lu_fid)))
1915 case OBD_IOC_FID2PATH:
1916 RETURN(ll_fid2path(inode, (void *)arg));
1917 case LL_IOC_DATA_VERSION: {
1918 struct ioc_data_version idv;
1921 if (cfs_copy_from_user(&idv, (char *)arg, sizeof(idv)))
1924 rc = ll_data_version(inode, &idv.idv_version,
1925 !(idv.idv_flags & LL_DV_NOFLUSH));
1928 cfs_copy_to_user((char *) arg, &idv, sizeof(idv)))
1934 case LL_IOC_GET_MDTIDX: {
1937 mdtidx = ll_get_mdt_idx(inode);
1941 if (put_user((int)mdtidx, (int*)arg))
1946 case OBD_IOC_GETDTNAME:
1947 case OBD_IOC_GETMDNAME:
1948 RETURN(ll_get_obd_name(inode, cmd, arg));
1953 ll_iocontrol_call(inode, file, cmd, arg, &err))
1956 RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
1962 #ifndef HAVE_FILE_LLSEEK_SIZE
1963 static inline loff_t
1964 llseek_execute(struct file *file, loff_t offset, loff_t maxsize)
1966 if (offset < 0 && !(file->f_mode & FMODE_UNSIGNED_OFFSET))
1968 if (offset > maxsize)
1971 if (offset != file->f_pos) {
1972 file->f_pos = offset;
1973 file->f_version = 0;
1979 generic_file_llseek_size(struct file *file, loff_t offset, int origin,
1980 loff_t maxsize, loff_t eof)
1982 struct inode *inode = file->f_dentry->d_inode;
1990 * Here we special-case the lseek(fd, 0, SEEK_CUR)
1991 * position-querying operation. Avoid rewriting the "same"
1992 * f_pos value back to the file because a concurrent read(),
1993 * write() or lseek() might have altered it
1998 * f_lock protects against read/modify/write race with other
1999 * SEEK_CURs. Note that parallel writes and reads behave
2002 mutex_lock(&inode->i_mutex);
2003 offset = llseek_execute(file, file->f_pos + offset, maxsize);
2004 mutex_unlock(&inode->i_mutex);
2008 * In the generic case the entire file is data, so as long as
2009 * offset isn't at the end of the file then the offset is data.
2016 * There is a virtual hole at the end of the file, so as long as
2017 * offset isn't i_size or larger, return i_size.
2025 return llseek_execute(file, offset, maxsize);
2029 loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
2031 struct inode *inode = file->f_dentry->d_inode;
2032 loff_t retval, eof = 0;
2035 retval = offset + ((origin == SEEK_END) ? i_size_read(inode) :
2036 (origin == SEEK_CUR) ? file->f_pos : 0);
2037 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%llu=%#llx(%d)\n",
2038 inode->i_ino, inode->i_generation, inode, retval, retval,
2040 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LLSEEK, 1);
2042 if (origin == SEEK_END || origin == SEEK_HOLE || origin == SEEK_DATA) {
2043 retval = ll_glimpse_size(inode);
2046 eof = i_size_read(inode);
2049 retval = generic_file_llseek_size(file, offset, origin,
2050 ll_file_maxbytes(inode), eof);
2054 int ll_flush(struct file *file, fl_owner_t id)
2056 struct inode *inode = file->f_dentry->d_inode;
2057 struct ll_inode_info *lli = ll_i2info(inode);
2058 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
2061 LASSERT(!S_ISDIR(inode->i_mode));
2063 /* catch async errors that were recorded back when async writeback
2064 * failed for pages in this mapping. */
2065 rc = lli->lli_async_rc;
2066 lli->lli_async_rc = 0;
2067 err = lov_read_and_clear_async_rc(lli->lli_clob);
2071 /* The application has been told write failure already.
2072 * Do not report failure again. */
2073 if (fd->fd_write_failed)
2075 return rc ? -EIO : 0;
2079 * Called to make sure a portion of file has been written out.
2080 * if @local_only is not true, it will send OST_SYNC RPCs to ost.
2082 * Return how many pages have been written.
2084 int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
2085 enum cl_fsync_mode mode)
2087 struct cl_env_nest nest;
2090 struct obd_capa *capa = NULL;
2091 struct cl_fsync_io *fio;
2095 if (mode != CL_FSYNC_NONE && mode != CL_FSYNC_LOCAL &&
2096 mode != CL_FSYNC_DISCARD && mode != CL_FSYNC_ALL)
2099 env = cl_env_nested_get(&nest);
2101 RETURN(PTR_ERR(env));
2103 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_WRITE);
2105 io = ccc_env_thread_io(env);
2106 io->ci_obj = cl_i2info(inode)->lli_clob;
2107 io->ci_ignore_layout = 1;
2109 /* initialize parameters for sync */
2110 fio = &io->u.ci_fsync;
2111 fio->fi_capa = capa;
2112 fio->fi_start = start;
2114 fio->fi_fid = ll_inode2fid(inode);
2115 fio->fi_mode = mode;
2116 fio->fi_nr_written = 0;
2118 if (cl_io_init(env, io, CIT_FSYNC, io->ci_obj) == 0)
2119 result = cl_io_loop(env, io);
2121 result = io->ci_result;
2123 result = fio->fi_nr_written;
2124 cl_io_fini(env, io);
2125 cl_env_nested_put(&nest, env);
2132 #ifdef HAVE_FILE_FSYNC_4ARGS
2133 int ll_fsync(struct file *file, loff_t start, loff_t end, int data)
2134 #elif defined(HAVE_FILE_FSYNC_2ARGS)
2135 int ll_fsync(struct file *file, int data)
2137 int ll_fsync(struct file *file, struct dentry *dentry, int data)
2140 struct inode *inode = file->f_dentry->d_inode;
2141 struct ll_inode_info *lli = ll_i2info(inode);
2142 struct ptlrpc_request *req;
2143 struct obd_capa *oc;
2147 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
2148 inode->i_generation, inode);
2149 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1);
2151 #ifdef HAVE_FILE_FSYNC_4ARGS
2152 rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
2153 mutex_lock(&inode->i_mutex);
2155 /* fsync's caller has already called _fdata{sync,write}, we want
2156 * that IO to finish before calling the osc and mdc sync methods */
2157 rc = filemap_fdatawait(inode->i_mapping);
2160 /* catch async errors that were recorded back when async writeback
2161 * failed for pages in this mapping. */
2162 if (!S_ISDIR(inode->i_mode)) {
2163 err = lli->lli_async_rc;
2164 lli->lli_async_rc = 0;
2167 err = lov_read_and_clear_async_rc(lli->lli_clob);
2172 oc = ll_mdscapa_get(inode);
2173 err = md_sync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
2179 ptlrpc_req_finished(req);
2182 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
2184 err = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
2186 if (rc == 0 && err < 0)
2189 fd->fd_write_failed = true;
2191 fd->fd_write_failed = false;
2194 #ifdef HAVE_FILE_FSYNC_4ARGS
2195 mutex_unlock(&inode->i_mutex);
2200 int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
2202 struct inode *inode = file->f_dentry->d_inode;
2203 struct ll_sb_info *sbi = ll_i2sbi(inode);
2204 struct ldlm_enqueue_info einfo = { .ei_type = LDLM_FLOCK,
2205 .ei_cb_cp =ldlm_flock_completion_ast,
2206 .ei_cbdata = file_lock };
2207 struct md_op_data *op_data;
2208 struct lustre_handle lockh = {0};
2209 ldlm_policy_data_t flock = {{0}};
2214 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n",
2215 inode->i_ino, file_lock);
2217 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1);
2219 if (file_lock->fl_flags & FL_FLOCK) {
2220 LASSERT((cmd == F_SETLKW) || (cmd == F_SETLK));
2221 /* flocks are whole-file locks */
2222 flock.l_flock.end = OFFSET_MAX;
2223 /* For flocks owner is determined by the local file desctiptor*/
2224 flock.l_flock.owner = (unsigned long)file_lock->fl_file;
2225 } else if (file_lock->fl_flags & FL_POSIX) {
2226 flock.l_flock.owner = (unsigned long)file_lock->fl_owner;
2227 flock.l_flock.start = file_lock->fl_start;
2228 flock.l_flock.end = file_lock->fl_end;
2232 flock.l_flock.pid = file_lock->fl_pid;
2234 /* Somewhat ugly workaround for svc lockd.
2235 * lockd installs custom fl_lmops->lm_compare_owner that checks
2236 * for the fl_owner to be the same (which it always is on local node
2237 * I guess between lockd processes) and then compares pid.
2238 * As such we assign pid to the owner field to make it all work,
2239 * conflict with normal locks is unlikely since pid space and
2240 * pointer space for current->files are not intersecting */
2241 if (file_lock->fl_lmops && file_lock->fl_lmops->lm_compare_owner)
2242 flock.l_flock.owner = (unsigned long)file_lock->fl_pid;
2244 switch (file_lock->fl_type) {
2246 einfo.ei_mode = LCK_PR;
2249 /* An unlock request may or may not have any relation to
2250 * existing locks so we may not be able to pass a lock handle
2251 * via a normal ldlm_lock_cancel() request. The request may even
2252 * unlock a byte range in the middle of an existing lock. In
2253 * order to process an unlock request we need all of the same
2254 * information that is given with a normal read or write record
2255 * lock request. To avoid creating another ldlm unlock (cancel)
2256 * message we'll treat a LCK_NL flock request as an unlock. */
2257 einfo.ei_mode = LCK_NL;
2260 einfo.ei_mode = LCK_PW;
2263 CDEBUG(D_INFO, "Unknown fcntl lock type: %d\n",
2264 file_lock->fl_type);
2279 flags = LDLM_FL_BLOCK_NOWAIT;
2285 flags = LDLM_FL_TEST_LOCK;
2286 /* Save the old mode so that if the mode in the lock changes we
2287 * can decrement the appropriate reader or writer refcount. */
2288 file_lock->fl_type = einfo.ei_mode;
2291 CERROR("unknown fcntl lock command: %d\n", cmd);
2295 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
2296 LUSTRE_OPC_ANY, NULL);
2297 if (IS_ERR(op_data))
2298 RETURN(PTR_ERR(op_data));
2300 CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#x, mode=%u, "
2301 "start="LPU64", end="LPU64"\n", inode->i_ino, flock.l_flock.pid,
2302 flags, einfo.ei_mode, flock.l_flock.start, flock.l_flock.end);
2304 rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL,
2305 op_data, &lockh, &flock, 0, NULL /* req */, flags);
2307 ll_finish_md_op_data(op_data);
2309 if ((file_lock->fl_flags & FL_FLOCK) &&
2310 (rc == 0 || file_lock->fl_type == F_UNLCK))
2311 flock_lock_file_wait(file, file_lock);
2312 if ((file_lock->fl_flags & FL_POSIX) &&
2313 (rc == 0 || file_lock->fl_type == F_UNLCK) &&
2314 !(flags & LDLM_FL_TEST_LOCK))
2315 posix_lock_file_wait(file, file_lock);
2320 int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
2328 * test if some locks matching bits and l_req_mode are acquired
2329 * - bits can be in different locks
2330 * - if found clear the common lock bits in *bits
2331 * - the bits not found, are kept in *bits
2333 * \param bits [IN] searched lock bits [IN]
2334 * \param l_req_mode [IN] searched lock mode
2335 * \retval boolean, true iff all bits are found
2337 int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode)
2339 struct lustre_handle lockh;
2340 ldlm_policy_data_t policy;
2341 ldlm_mode_t mode = (l_req_mode == LCK_MINMODE) ?
2342 (LCK_CR|LCK_CW|LCK_PR|LCK_PW) : l_req_mode;
2351 fid = &ll_i2info(inode)->lli_fid;
2352 CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid),
2353 ldlm_lockname[mode]);
2355 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
2356 for (i = 0; i < MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) {
2357 policy.l_inodebits.bits = *bits & (1 << i);
2358 if (policy.l_inodebits.bits == 0)
2361 if (md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS,
2362 &policy, mode, &lockh)) {
2363 struct ldlm_lock *lock;
2365 lock = ldlm_handle2lock(&lockh);
2368 ~(lock->l_policy_data.l_inodebits.bits);
2369 LDLM_LOCK_PUT(lock);
2371 *bits &= ~policy.l_inodebits.bits;
2378 ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
2379 struct lustre_handle *lockh, __u64 flags)
2381 ldlm_policy_data_t policy = { .l_inodebits = {bits}};
2386 fid = &ll_i2info(inode)->lli_fid;
2387 CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
2389 rc = md_lock_match(ll_i2mdexp(inode), LDLM_FL_BLOCK_GRANTED|flags,
2390 fid, LDLM_IBITS, &policy,
2391 LCK_CR|LCK_CW|LCK_PR|LCK_PW, lockh);
2395 static int ll_inode_revalidate_fini(struct inode *inode, int rc)
2397 /* Already unlinked. Just update nlink and return success */
2398 if (rc == -ENOENT) {
2400 /* This path cannot be hit for regular files unless in
2401 * case of obscure races, so no need to to validate
2403 if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
2405 } else if (rc != 0) {
2406 CERROR("%s: revalidate FID "DFID" error: rc = %d\n",
2407 ll_get_fsname(inode->i_sb, NULL, 0),
2408 PFID(ll_inode2fid(inode)), rc);
2414 int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
2417 struct inode *inode = dentry->d_inode;
2418 struct ptlrpc_request *req = NULL;
2419 struct obd_export *exp;
2423 LASSERT(inode != NULL);
2425 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%s\n",
2426 inode->i_ino, inode->i_generation, inode, dentry->d_name.name);
2428 exp = ll_i2mdexp(inode);
2430 /* XXX: Enable OBD_CONNECT_ATTRFID to reduce unnecessary getattr RPC.
2431 * But under CMD case, it caused some lock issues, should be fixed
2432 * with new CMD ibits lock. See bug 12718 */
2433 if (exp->exp_connect_flags & OBD_CONNECT_ATTRFID) {
2434 struct lookup_intent oit = { .it_op = IT_GETATTR };
2435 struct md_op_data *op_data;
2437 if (ibits == MDS_INODELOCK_LOOKUP)
2438 oit.it_op = IT_LOOKUP;
2440 /* Call getattr by fid, so do not provide name at all. */
2441 op_data = ll_prep_md_op_data(NULL, dentry->d_parent->d_inode,
2442 dentry->d_inode, NULL, 0, 0,
2443 LUSTRE_OPC_ANY, NULL);
2444 if (IS_ERR(op_data))
2445 RETURN(PTR_ERR(op_data));
2447 oit.it_create_mode |= M_CHECK_STALE;
2448 rc = md_intent_lock(exp, op_data, NULL, 0,
2449 /* we are not interested in name
2452 ll_md_blocking_ast, 0);
2453 ll_finish_md_op_data(op_data);
2454 oit.it_create_mode &= ~M_CHECK_STALE;
2456 rc = ll_inode_revalidate_fini(inode, rc);
2460 rc = ll_revalidate_it_finish(req, &oit, dentry);
2462 ll_intent_release(&oit);
2466 /* Unlinked? Unhash dentry, so it is not picked up later by
2467 do_lookup() -> ll_revalidate_it(). We cannot use d_drop
2468 here to preserve get_cwd functionality on 2.6.
2470 if (!dentry->d_inode->i_nlink)
2471 d_lustre_invalidate(dentry);
2473 ll_lookup_finish_locks(&oit, dentry);
2474 } else if (!ll_have_md_lock(dentry->d_inode, &ibits, LCK_MINMODE)) {
2475 struct ll_sb_info *sbi = ll_i2sbi(dentry->d_inode);
2476 obd_valid valid = OBD_MD_FLGETATTR;
2477 struct md_op_data *op_data;
2480 if (S_ISREG(inode->i_mode)) {
2481 rc = ll_get_max_mdsize(sbi, &ealen);
2484 valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE;
2487 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
2488 0, ealen, LUSTRE_OPC_ANY,
2490 if (IS_ERR(op_data))
2491 RETURN(PTR_ERR(op_data));
2493 op_data->op_valid = valid;
2494 /* Once OBD_CONNECT_ATTRFID is not supported, we can't find one
2495 * capa for this inode. Because we only keep capas of dirs
2497 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
2498 ll_finish_md_op_data(op_data);
2500 rc = ll_inode_revalidate_fini(inode, rc);
2504 rc = ll_prep_inode(&inode, req, NULL);
2507 ptlrpc_req_finished(req);
2511 int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
2514 struct inode *inode = dentry->d_inode;
2518 rc = __ll_inode_revalidate_it(dentry, it, ibits);
2522 /* if object isn't regular file, don't validate size */
2523 if (!S_ISREG(inode->i_mode)) {
2524 LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_lvb.lvb_atime;
2525 LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_lvb.lvb_mtime;
2526 LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_lvb.lvb_ctime;
2528 rc = ll_glimpse_size(inode);
2533 int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
2534 struct lookup_intent *it, struct kstat *stat)
2536 struct inode *inode = de->d_inode;
2537 struct ll_sb_info *sbi = ll_i2sbi(inode);
2538 struct ll_inode_info *lli = ll_i2info(inode);
2541 res = ll_inode_revalidate_it(de, it, MDS_INODELOCK_UPDATE |
2542 MDS_INODELOCK_LOOKUP);
2543 ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
2548 stat->dev = inode->i_sb->s_dev;
2549 if (ll_need_32bit_api(sbi))
2550 stat->ino = cl_fid_build_ino(&lli->lli_fid, 1);
2552 stat->ino = inode->i_ino;
2553 stat->mode = inode->i_mode;
2554 stat->nlink = inode->i_nlink;
2555 stat->uid = inode->i_uid;
2556 stat->gid = inode->i_gid;
2557 stat->rdev = inode->i_rdev;
2558 stat->atime = inode->i_atime;
2559 stat->mtime = inode->i_mtime;
2560 stat->ctime = inode->i_ctime;
2561 stat->blksize = 1 << inode->i_blkbits;
2563 stat->size = i_size_read(inode);
2564 stat->blocks = inode->i_blocks;
2568 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
2570 struct lookup_intent it = { .it_op = IT_GETATTR };
2572 return ll_getattr_it(mnt, de, &it, stat);
2575 #ifdef HAVE_LINUX_FIEMAP_H
2576 int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2577 __u64 start, __u64 len)
2581 struct ll_user_fiemap *fiemap;
2582 unsigned int extent_count = fieinfo->fi_extents_max;
2584 num_bytes = sizeof(*fiemap) + (extent_count *
2585 sizeof(struct ll_fiemap_extent));
2586 OBD_ALLOC_LARGE(fiemap, num_bytes);
2591 fiemap->fm_flags = fieinfo->fi_flags;
2592 fiemap->fm_extent_count = fieinfo->fi_extents_max;
2593 fiemap->fm_start = start;
2594 fiemap->fm_length = len;
2595 memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start,
2596 sizeof(struct ll_fiemap_extent));
2598 rc = ll_do_fiemap(inode, fiemap, num_bytes);
2600 fieinfo->fi_flags = fiemap->fm_flags;
2601 fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents;
2602 memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0],
2603 fiemap->fm_mapped_extents * sizeof(struct ll_fiemap_extent));
2605 OBD_FREE_LARGE(fiemap, num_bytes);
2610 struct posix_acl * ll_get_acl(struct inode *inode, int type)
2612 struct ll_inode_info *lli = ll_i2info(inode);
2613 struct posix_acl *acl = NULL;
2616 spin_lock(&lli->lli_lock);
2617 /* VFS' acl_permission_check->check_acl will release the refcount */
2618 acl = posix_acl_dup(lli->lli_posix_acl);
2619 spin_unlock(&lli->lli_lock);
2624 #ifndef HAVE_GENERIC_PERMISSION_2ARGS
2626 # ifdef HAVE_GENERIC_PERMISSION_4ARGS
2627 ll_check_acl(struct inode *inode, int mask, unsigned int flags)
2629 ll_check_acl(struct inode *inode, int mask)
2632 # ifdef CONFIG_FS_POSIX_ACL
2633 struct posix_acl *acl;
2637 # ifdef HAVE_GENERIC_PERMISSION_4ARGS
2638 if (flags & IPERM_FLAG_RCU)
2641 acl = ll_get_acl(inode, ACL_TYPE_ACCESS);
2646 rc = posix_acl_permission(inode, acl, mask);
2647 posix_acl_release(acl);
2650 # else /* !CONFIG_FS_POSIX_ACL */
2652 # endif /* CONFIG_FS_POSIX_ACL */
2654 #endif /* HAVE_GENERIC_PERMISSION_2ARGS */
2656 #ifdef HAVE_GENERIC_PERMISSION_4ARGS
2657 int ll_inode_permission(struct inode *inode, int mask, unsigned int flags)
2659 # ifdef HAVE_INODE_PERMISION_2ARGS
2660 int ll_inode_permission(struct inode *inode, int mask)
2662 int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd)
2669 #ifdef MAY_NOT_BLOCK
2670 if (mask & MAY_NOT_BLOCK)
2672 #elif defined(HAVE_GENERIC_PERMISSION_4ARGS)
2673 if (flags & IPERM_FLAG_RCU)
2677 /* as root inode are NOT getting validated in lookup operation,
2678 * need to do it before permission check. */
2680 if (inode == inode->i_sb->s_root->d_inode) {
2681 struct lookup_intent it = { .it_op = IT_LOOKUP };
2683 rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it,
2684 MDS_INODELOCK_LOOKUP);
2689 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n",
2690 inode->i_ino, inode->i_generation, inode, inode->i_mode, mask);
2692 if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT)
2693 return lustre_check_remote_perm(inode, mask);
2695 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1);
2696 rc = ll_generic_permission(inode, mask, flags, ll_check_acl);
2701 #ifdef HAVE_FILE_READV
2702 #define READ_METHOD readv
2703 #define READ_FUNCTION ll_file_readv
2704 #define WRITE_METHOD writev
2705 #define WRITE_FUNCTION ll_file_writev
2707 #define READ_METHOD aio_read
2708 #define READ_FUNCTION ll_file_aio_read
2709 #define WRITE_METHOD aio_write
2710 #define WRITE_FUNCTION ll_file_aio_write
2713 /* -o localflock - only provides locally consistent flock locks */
2714 struct file_operations ll_file_operations = {
2715 .read = ll_file_read,
2716 .READ_METHOD = READ_FUNCTION,
2717 .write = ll_file_write,
2718 .WRITE_METHOD = WRITE_FUNCTION,
2719 .unlocked_ioctl = ll_file_ioctl,
2720 .open = ll_file_open,
2721 .release = ll_file_release,
2722 .mmap = ll_file_mmap,
2723 .llseek = ll_file_seek,
2724 #ifdef HAVE_KERNEL_SENDFILE
2725 .sendfile = ll_file_sendfile,
2727 #ifdef HAVE_KERNEL_SPLICE_READ
2728 .splice_read = ll_file_splice_read,
2734 struct file_operations ll_file_operations_flock = {
2735 .read = ll_file_read,
2736 .READ_METHOD = READ_FUNCTION,
2737 .write = ll_file_write,
2738 .WRITE_METHOD = WRITE_FUNCTION,
2739 .unlocked_ioctl = ll_file_ioctl,
2740 .open = ll_file_open,
2741 .release = ll_file_release,
2742 .mmap = ll_file_mmap,
2743 .llseek = ll_file_seek,
2744 #ifdef HAVE_KERNEL_SENDFILE
2745 .sendfile = ll_file_sendfile,
2747 #ifdef HAVE_KERNEL_SPLICE_READ
2748 .splice_read = ll_file_splice_read,
2752 .flock = ll_file_flock,
2753 .lock = ll_file_flock
2756 /* These are for -o noflock - to return ENOSYS on flock calls */
2757 struct file_operations ll_file_operations_noflock = {
2758 .read = ll_file_read,
2759 .READ_METHOD = READ_FUNCTION,
2760 .write = ll_file_write,
2761 .WRITE_METHOD = WRITE_FUNCTION,
2762 .unlocked_ioctl = ll_file_ioctl,
2763 .open = ll_file_open,
2764 .release = ll_file_release,
2765 .mmap = ll_file_mmap,
2766 .llseek = ll_file_seek,
2767 #ifdef HAVE_KERNEL_SENDFILE
2768 .sendfile = ll_file_sendfile,
2770 #ifdef HAVE_KERNEL_SPLICE_READ
2771 .splice_read = ll_file_splice_read,
2775 .flock = ll_file_noflock,
2776 .lock = ll_file_noflock
2779 struct inode_operations ll_file_inode_operations = {
2780 .setattr = ll_setattr,
2781 .getattr = ll_getattr,
2782 .permission = ll_inode_permission,
2783 .setxattr = ll_setxattr,
2784 .getxattr = ll_getxattr,
2785 .listxattr = ll_listxattr,
2786 .removexattr = ll_removexattr,
2787 #ifdef HAVE_LINUX_FIEMAP_H
2788 .fiemap = ll_fiemap,
2790 #ifdef HAVE_IOP_GET_ACL
2791 .get_acl = ll_get_acl,
2795 /* dynamic ioctl number support routins */
2796 static struct llioc_ctl_data {
2797 struct rw_semaphore ioc_sem;
2798 cfs_list_t ioc_head;
2800 __RWSEM_INITIALIZER(llioc.ioc_sem),
2801 CFS_LIST_HEAD_INIT(llioc.ioc_head)
2806 cfs_list_t iocd_list;
2807 unsigned int iocd_size;
2808 llioc_callback_t iocd_cb;
2809 unsigned int iocd_count;
2810 unsigned int iocd_cmd[0];
2813 void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
2816 struct llioc_data *in_data = NULL;
2819 if (cb == NULL || cmd == NULL ||
2820 count > LLIOC_MAX_CMD || count < 0)
2823 size = sizeof(*in_data) + count * sizeof(unsigned int);
2824 OBD_ALLOC(in_data, size);
2825 if (in_data == NULL)
2828 memset(in_data, 0, sizeof(*in_data));
2829 in_data->iocd_size = size;
2830 in_data->iocd_cb = cb;
2831 in_data->iocd_count = count;
2832 memcpy(in_data->iocd_cmd, cmd, sizeof(unsigned int) * count);
2834 down_write(&llioc.ioc_sem);
2835 cfs_list_add_tail(&in_data->iocd_list, &llioc.ioc_head);
2836 up_write(&llioc.ioc_sem);
2841 void ll_iocontrol_unregister(void *magic)
2843 struct llioc_data *tmp;
2848 down_write(&llioc.ioc_sem);
2849 cfs_list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) {
2851 unsigned int size = tmp->iocd_size;
2853 cfs_list_del(&tmp->iocd_list);
2854 up_write(&llioc.ioc_sem);
2856 OBD_FREE(tmp, size);
2860 up_write(&llioc.ioc_sem);
2862 CWARN("didn't find iocontrol register block with magic: %p\n", magic);
2865 EXPORT_SYMBOL(ll_iocontrol_register);
2866 EXPORT_SYMBOL(ll_iocontrol_unregister);
2868 enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
2869 unsigned int cmd, unsigned long arg, int *rcp)
2871 enum llioc_iter ret = LLIOC_CONT;
2872 struct llioc_data *data;
2873 int rc = -EINVAL, i;
2875 down_read(&llioc.ioc_sem);
2876 cfs_list_for_each_entry(data, &llioc.ioc_head, iocd_list) {
2877 for (i = 0; i < data->iocd_count; i++) {
2878 if (cmd != data->iocd_cmd[i])
2881 ret = data->iocd_cb(inode, file, cmd, arg, data, &rc);
2885 if (ret == LLIOC_STOP)
2888 up_read(&llioc.ioc_sem);
2895 int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf)
2897 struct ll_inode_info *lli = ll_i2info(inode);
2898 struct cl_env_nest nest;
2903 if (lli->lli_clob == NULL)
2906 env = cl_env_nested_get(&nest);
2908 RETURN(PTR_ERR(env));
2910 result = cl_conf_set(env, lli->lli_clob, conf);
2911 cl_env_nested_put(&nest, env);
2916 * This function checks if there exists a LAYOUT lock on the client side,
2917 * or enqueues it if it doesn't have one in cache.
2919 * This function will not hold layout lock so it may be revoked any time after
2920 * this function returns. Any operations depend on layout should be redone
2923 * This function should be called before lov_io_init() to get an uptodate
2924 * layout version, the caller should save the version number and after IO
2925 * is finished, this function should be called again to verify that layout
2926 * is not changed during IO time.
2928 int ll_layout_refresh(struct inode *inode, __u32 *gen)
2930 struct ll_inode_info *lli = ll_i2info(inode);
2931 struct ll_sb_info *sbi = ll_i2sbi(inode);
2932 struct md_op_data *op_data = NULL;
2933 struct lookup_intent it = { .it_op = IT_LAYOUT };
2934 struct lustre_handle lockh = { 0 };
2936 struct ldlm_enqueue_info einfo = { .ei_type = LDLM_IBITS,
2938 .ei_cb_bl = ll_md_blocking_ast,
2939 .ei_cb_cp = ldlm_completion_ast,
2940 .ei_cbdata = inode };
2945 if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
2949 LASSERT(fid_is_sane(ll_inode2fid(inode)));
2950 LASSERT(S_ISREG(inode->i_mode));
2952 /* mostly layout lock is caching on the local side, so try to match
2953 * it before grabbing layout lock mutex. */
2954 mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh,
2956 if (mode != 0) { /* hit cached lock */
2957 /* lsm_layout_gen is started from 0, plus 1 here to distinguish
2958 * the cases of no layout and first layout. */
2959 *gen = lli->lli_layout_gen + 1;
2961 ldlm_lock_decref(&lockh, mode);
2965 op_data = ll_prep_md_op_data(NULL, inode, inode, NULL,
2966 0, 0, LUSTRE_OPC_ANY, NULL);
2967 if (IS_ERR(op_data))
2968 RETURN(PTR_ERR(op_data));
2970 /* take layout lock mutex to enqueue layout lock exclusively. */
2971 mutex_lock(&lli->lli_layout_mutex);
2973 /* try again inside layout mutex */
2974 mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh,
2976 if (mode != 0) { /* hit cached lock */
2977 *gen = lli->lli_layout_gen + 1;
2979 ldlm_lock_decref(&lockh, mode);
2980 mutex_unlock(&lli->lli_layout_mutex);
2981 ll_finish_md_op_data(op_data);
2985 /* have to enqueue one */
2986 rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh,
2988 if (it.d.lustre.it_data != NULL)
2989 ptlrpc_req_finished(it.d.lustre.it_data);
2990 it.d.lustre.it_data = NULL;
2993 struct ldlm_lock *lock;
2994 struct cl_object_conf conf;
2995 struct lustre_md md = { NULL };
2999 LASSERT(lustre_handle_is_used(&lockh));
3001 /* set lock data in case this is a new lock */
3002 ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL);
3004 lock = ldlm_handle2lock(&lockh);
3005 LASSERT(lock != NULL);
3007 /* for IT_LAYOUT lock, lmm is returned in lock's lvb
3008 * data via completion callback */
3009 lmm = lock->l_lvb_data;
3010 lmmsize = lock->l_lvb_len;
3012 rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm,
3016 *gen = md.lsm->lsm_layout_gen + 1;
3019 CERROR("file: "DFID" unpackmd error: %d\n",
3020 PFID(&lli->lli_fid), rc);
3023 LDLM_LOCK_PUT(lock);
3025 /* set layout to file. This may cause lock expiration as we
3026 * set layout inside layout ibits lock. */
3027 memset(&conf, 0, sizeof conf);
3028 conf.coc_inode = inode;
3029 conf.u.coc_md = &md;
3030 ll_layout_conf(inode, &conf);
3032 lli->lli_has_smd = md.lsm != NULL;
3034 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
3036 ll_intent_drop_lock(&it);
3038 mutex_unlock(&lli->lli_layout_mutex);
3039 ll_finish_md_op_data(op_data);