1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
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 <lustre_mdc.h>
47 #include <linux/pagemap.h>
48 #include <linux/file.h>
49 #include "llite_internal.h"
50 #include <lustre/ll_fiemap.h>
52 #include "cl_object.h"
54 struct ll_file_data *ll_file_data_get(void)
56 struct ll_file_data *fd;
58 OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, CFS_ALLOC_IO);
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);
87 * Closes the IO epoch and packs all the attributes into @op_data for
90 static void ll_prepare_close(struct inode *inode, struct md_op_data *op_data,
91 struct obd_client_handle *och)
95 op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME_SET |
96 ATTR_MTIME_SET | ATTR_CTIME_SET;
98 if (!(och->och_flags & FMODE_WRITE))
101 if (!exp_connect_som(ll_i2mdexp(inode)) || !S_ISREG(inode->i_mode))
102 op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
104 ll_ioepoch_close(inode, op_data, &och, 0);
107 ll_pack_inode2opdata(inode, op_data, &och->och_fh);
108 ll_prep_md_op_data(op_data, inode, NULL, NULL,
109 0, 0, LUSTRE_OPC_ANY, NULL);
113 static int ll_close_inode_openhandle(struct obd_export *md_exp,
115 struct obd_client_handle *och)
117 struct obd_export *exp = ll_i2mdexp(inode);
118 struct md_op_data *op_data;
119 struct ptlrpc_request *req = NULL;
120 struct obd_device *obd = class_exp2obd(exp);
127 * XXX: in case of LMV, is this correct to access
130 CERROR("Invalid MDC connection handle "LPX64"\n",
131 ll_i2mdexp(inode)->exp_handle.h_cookie);
135 OBD_ALLOC_PTR(op_data);
137 GOTO(out, rc = -ENOMEM); // XXX We leak openhandle and request here.
139 ll_prepare_close(inode, op_data, och);
140 epoch_close = (op_data->op_flags & MF_EPOCH_CLOSE);
141 rc = md_close(md_exp, op_data, och->och_mod, &req);
143 /* This close must have the epoch closed. */
144 LASSERT(epoch_close);
145 /* MDS has instructed us to obtain Size-on-MDS attribute from
146 * OSTs and send setattr to back to MDS. */
147 rc = ll_som_update(inode, op_data);
149 CERROR("inode %lu mdc Size-on-MDS update failed: "
150 "rc = %d\n", inode->i_ino, rc);
154 CERROR("inode %lu mdc close failed: rc = %d\n",
157 ll_finish_md_op_data(op_data);
160 rc = ll_objects_destroy(req, inode);
162 CERROR("inode %lu ll_objects destroy: rc = %d\n",
169 if (exp_connect_som(exp) && !epoch_close &&
170 S_ISREG(inode->i_mode) && (och->och_flags & FMODE_WRITE)) {
171 ll_queue_done_writing(inode, LLIF_DONE_WRITING);
173 md_clear_open_replay_data(md_exp, och);
174 /* Free @och if it is not waiting for DONE_WRITING. */
175 och->och_fh.cookie = DEAD_HANDLE_MAGIC;
178 if (req) /* This is close request */
179 ptlrpc_req_finished(req);
183 int ll_md_real_close(struct inode *inode, int flags)
185 struct ll_inode_info *lli = ll_i2info(inode);
186 struct obd_client_handle **och_p;
187 struct obd_client_handle *och;
192 if (flags & FMODE_WRITE) {
193 och_p = &lli->lli_mds_write_och;
194 och_usecount = &lli->lli_open_fd_write_count;
195 } else if (flags & FMODE_EXEC) {
196 och_p = &lli->lli_mds_exec_och;
197 och_usecount = &lli->lli_open_fd_exec_count;
199 LASSERT(flags & FMODE_READ);
200 och_p = &lli->lli_mds_read_och;
201 och_usecount = &lli->lli_open_fd_read_count;
204 cfs_down(&lli->lli_och_sem);
205 if (*och_usecount) { /* There are still users of this handle, so
207 cfs_up(&lli->lli_och_sem);
212 cfs_up(&lli->lli_och_sem);
214 if (och) { /* There might be a race and somebody have freed this och
216 rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
223 int ll_md_close(struct obd_export *md_exp, struct inode *inode,
226 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
227 struct ll_inode_info *lli = ll_i2info(inode);
231 /* clear group lock, if present */
232 if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED))
233 ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid);
235 /* Let's see if we have good enough OPEN lock on the file and if
236 we can skip talking to MDS */
237 if (file->f_dentry->d_inode) { /* Can this ever be false? */
239 int flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK;
240 struct lustre_handle lockh;
241 struct inode *inode = file->f_dentry->d_inode;
242 ldlm_policy_data_t policy = {.l_inodebits={MDS_INODELOCK_OPEN}};
244 cfs_down(&lli->lli_och_sem);
245 if (fd->fd_omode & FMODE_WRITE) {
247 LASSERT(lli->lli_open_fd_write_count);
248 lli->lli_open_fd_write_count--;
249 } else if (fd->fd_omode & FMODE_EXEC) {
251 LASSERT(lli->lli_open_fd_exec_count);
252 lli->lli_open_fd_exec_count--;
255 LASSERT(lli->lli_open_fd_read_count);
256 lli->lli_open_fd_read_count--;
258 cfs_up(&lli->lli_och_sem);
260 if (!md_lock_match(md_exp, flags, ll_inode2fid(inode),
261 LDLM_IBITS, &policy, lockmode,
263 rc = ll_md_real_close(file->f_dentry->d_inode,
267 CERROR("Releasing a file %p with negative dentry %p. Name %s",
268 file, file->f_dentry, file->f_dentry->d_name.name);
271 LUSTRE_FPRIVATE(file) = NULL;
272 ll_file_data_put(fd);
273 ll_capa_close(inode);
278 int lov_test_and_clear_async_rc(struct lov_stripe_md *lsm);
280 /* While this returns an error code, fput() the caller does not, so we need
281 * to make every effort to clean up all of our state here. Also, applications
282 * rarely check close errors and even if an error is returned they will not
283 * re-try the close call.
285 int ll_file_release(struct inode *inode, struct file *file)
287 struct ll_file_data *fd;
288 struct ll_sb_info *sbi = ll_i2sbi(inode);
289 struct ll_inode_info *lli = ll_i2info(inode);
290 struct lov_stripe_md *lsm = lli->lli_smd;
294 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
295 inode->i_generation, inode);
297 #ifdef CONFIG_FS_POSIX_ACL
298 if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
299 inode == inode->i_sb->s_root->d_inode) {
300 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
303 if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) {
304 fd->fd_flags &= ~LL_FILE_RMTACL;
305 rct_del(&sbi->ll_rct, cfs_curproc_pid());
306 et_search_free(&sbi->ll_et, cfs_curproc_pid());
311 if (inode->i_sb->s_root != file->f_dentry)
312 ll_stats_ops_tally(sbi, LPROC_LL_RELEASE, 1);
313 fd = LUSTRE_FPRIVATE(file);
316 /* The last ref on @file, maybe not the the owner pid of statahead.
317 * Different processes can open the same dir, "ll_opendir_key" means:
318 * it is me that should stop the statahead thread. */
319 if (lli->lli_opendir_key == fd && lli->lli_opendir_pid != 0)
320 ll_stop_statahead(inode, lli->lli_opendir_key);
322 if (inode->i_sb->s_root == file->f_dentry) {
323 LUSTRE_FPRIVATE(file) = NULL;
324 ll_file_data_put(fd);
329 lov_test_and_clear_async_rc(lsm);
330 lli->lli_async_rc = 0;
332 rc = ll_md_close(sbi->ll_md_exp, inode, file);
334 if (OBD_FAIL_TIMEOUT_MS(OBD_FAIL_PTLRPC_DUMP_LOG, obd_fail_val))
335 libcfs_debug_dumplog();
340 static int ll_intent_file_open(struct file *file, void *lmm,
341 int lmmsize, struct lookup_intent *itp)
343 struct ll_sb_info *sbi = ll_i2sbi(file->f_dentry->d_inode);
344 struct dentry *parent = file->f_dentry->d_parent;
345 const char *name = file->f_dentry->d_name.name;
346 const int len = file->f_dentry->d_name.len;
347 struct md_op_data *op_data;
348 struct ptlrpc_request *req;
355 /* Usually we come here only for NFSD, and we want open lock.
356 But we can also get here with pre 2.6.15 patchless kernels, and in
357 that case that lock is also ok */
358 /* We can also get here if there was cached open handle in revalidate_it
359 * but it disappeared while we were getting from there to ll_file_open.
360 * But this means this file was closed and immediatelly opened which
361 * makes a good candidate for using OPEN lock */
362 /* If lmmsize & lmm are not 0, we are just setting stripe info
363 * parameters. No need for the open lock */
364 if (!lmm && !lmmsize)
365 itp->it_flags |= MDS_OPEN_LOCK;
367 op_data = ll_prep_md_op_data(NULL, parent->d_inode,
368 file->f_dentry->d_inode, name, len,
369 O_RDWR, LUSTRE_OPC_ANY, NULL);
371 RETURN(PTR_ERR(op_data));
373 rc = md_intent_lock(sbi->ll_md_exp, op_data, lmm, lmmsize, itp,
374 0 /*unused */, &req, ll_md_blocking_ast, 0);
375 ll_finish_md_op_data(op_data);
377 /* reason for keep own exit path - don`t flood log
378 * with messages with -ESTALE errors.
380 if (!it_disposition(itp, DISP_OPEN_OPEN) ||
381 it_open_error(DISP_OPEN_OPEN, itp))
383 ll_release_openhandle(file->f_dentry, itp);
387 if (rc != 0 || it_open_error(DISP_OPEN_OPEN, itp)) {
388 rc = rc ? rc : it_open_error(DISP_OPEN_OPEN, itp);
389 CDEBUG(D_VFSTRACE, "lock enqueue: err: %d\n", rc);
393 rc = ll_prep_inode(&file->f_dentry->d_inode, req, NULL);
394 if (!rc && itp->d.lustre.it_lock_mode)
395 md_set_lock_data(sbi->ll_md_exp,
396 &itp->d.lustre.it_lock_handle,
397 file->f_dentry->d_inode, NULL);
400 ptlrpc_req_finished(itp->d.lustre.it_data);
401 it_clear_disposition(itp, DISP_ENQ_COMPLETE);
402 ll_intent_drop_lock(itp);
408 * Assign an obtained @ioepoch to client's inode. No lock is needed, MDS does
409 * not believe attributes if a few ioepoch holders exist. Attributes for
410 * previous ioepoch if new one is opened are also skipped by MDS.
412 void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch)
414 if (ioepoch && lli->lli_ioepoch != ioepoch) {
415 lli->lli_ioepoch = ioepoch;
416 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID"\n",
417 ioepoch, PFID(&lli->lli_fid));
421 static int ll_och_fill(struct obd_export *md_exp, struct ll_inode_info *lli,
422 struct lookup_intent *it, struct obd_client_handle *och)
424 struct ptlrpc_request *req = it->d.lustre.it_data;
425 struct mdt_body *body;
429 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
430 LASSERT(body != NULL); /* reply already checked out */
432 memcpy(&och->och_fh, &body->handle, sizeof(body->handle));
433 och->och_magic = OBD_CLIENT_HANDLE_MAGIC;
434 och->och_fid = lli->lli_fid;
435 och->och_flags = it->it_flags;
436 ll_ioepoch_open(lli, body->ioepoch);
438 return md_set_open_replay_data(md_exp, och, req);
441 int ll_local_open(struct file *file, struct lookup_intent *it,
442 struct ll_file_data *fd, struct obd_client_handle *och)
444 struct inode *inode = file->f_dentry->d_inode;
445 struct ll_inode_info *lli = ll_i2info(inode);
448 LASSERT(!LUSTRE_FPRIVATE(file));
453 struct ptlrpc_request *req = it->d.lustre.it_data;
454 struct mdt_body *body;
457 rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, lli, it, och);
461 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
462 if ((it->it_flags & FMODE_WRITE) &&
463 (body->valid & OBD_MD_FLSIZE))
464 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID"\n",
465 lli->lli_ioepoch, PFID(&lli->lli_fid));
468 LUSTRE_FPRIVATE(file) = fd;
469 ll_readahead_init(inode, &fd->fd_ras);
470 fd->fd_omode = it->it_flags;
474 /* Open a file, and (for the very first open) create objects on the OSTs at
475 * this time. If opened with O_LOV_DELAY_CREATE, then we don't do the object
476 * creation or open until ll_lov_setstripe() ioctl is called. We grab
477 * lli_open_sem to ensure no other process will create objects, send the
478 * stripe MD to the MDS, or try to destroy the objects if that fails.
480 * If we already have the stripe MD locally then we don't request it in
481 * md_open(), by passing a lmm_size = 0.
483 * It is up to the application to ensure no other processes open this file
484 * in the O_LOV_DELAY_CREATE case, or the default striping pattern will be
485 * used. We might be able to avoid races of that sort by getting lli_open_sem
486 * before returning in the O_LOV_DELAY_CREATE case and dropping it here
487 * or in ll_file_release(), but I'm not sure that is desirable/necessary.
489 int ll_file_open(struct inode *inode, struct file *file)
491 struct ll_inode_info *lli = ll_i2info(inode);
492 struct lookup_intent *it, oit = { .it_op = IT_OPEN,
493 .it_flags = file->f_flags };
494 struct lov_stripe_md *lsm;
495 struct ptlrpc_request *req = NULL;
496 struct obd_client_handle **och_p;
498 struct ll_file_data *fd;
499 int rc = 0, opendir_set = 0;
502 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino,
503 inode->i_generation, inode, file->f_flags);
505 #ifdef HAVE_VFS_INTENT_PATCHES
508 it = file->private_data; /* XXX: compat macro */
509 file->private_data = NULL; /* prevent ll_local_open assertion */
512 fd = ll_file_data_get();
517 if (S_ISDIR(inode->i_mode)) {
518 cfs_spin_lock(&lli->lli_sa_lock);
519 if (lli->lli_opendir_key == NULL && lli->lli_opendir_pid == 0) {
520 LASSERT(lli->lli_sai == NULL);
521 lli->lli_opendir_key = fd;
522 lli->lli_opendir_pid = cfs_curproc_pid();
525 cfs_spin_unlock(&lli->lli_sa_lock);
528 if (inode->i_sb->s_root == file->f_dentry) {
529 LUSTRE_FPRIVATE(file) = fd;
533 if (!it || !it->d.lustre.it_disposition) {
534 /* Convert f_flags into access mode. We cannot use file->f_mode,
535 * because everything but O_ACCMODE mask was stripped from
537 if ((oit.it_flags + 1) & O_ACCMODE)
539 if (file->f_flags & O_TRUNC)
540 oit.it_flags |= FMODE_WRITE;
542 /* kernel only call f_op->open in dentry_open. filp_open calls
543 * dentry_open after call to open_namei that checks permissions.
544 * Only nfsd_open call dentry_open directly without checking
545 * permissions and because of that this code below is safe. */
546 if (oit.it_flags & FMODE_WRITE)
547 oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
549 /* We do not want O_EXCL here, presumably we opened the file
550 * already? XXX - NFS implications? */
551 oit.it_flags &= ~O_EXCL;
553 /* bug20584, if "it_flags" contains O_CREAT, the file will be
554 * created if necessary, then "IT_CREAT" should be set to keep
555 * consistent with it */
556 if (oit.it_flags & O_CREAT)
557 oit.it_op |= IT_CREAT;
563 /* Let's see if we have file open on MDS already. */
564 if (it->it_flags & FMODE_WRITE) {
565 och_p = &lli->lli_mds_write_och;
566 och_usecount = &lli->lli_open_fd_write_count;
567 } else if (it->it_flags & FMODE_EXEC) {
568 och_p = &lli->lli_mds_exec_och;
569 och_usecount = &lli->lli_open_fd_exec_count;
571 och_p = &lli->lli_mds_read_och;
572 och_usecount = &lli->lli_open_fd_read_count;
575 cfs_down(&lli->lli_och_sem);
576 if (*och_p) { /* Open handle is present */
577 if (it_disposition(it, DISP_OPEN_OPEN)) {
578 /* Well, there's extra open request that we do not need,
579 let's close it somehow. This will decref request. */
580 rc = it_open_error(DISP_OPEN_OPEN, it);
582 cfs_up(&lli->lli_och_sem);
583 ll_file_data_put(fd);
584 GOTO(out_openerr, rc);
586 ll_release_openhandle(file->f_dentry, it);
587 lprocfs_counter_incr(ll_i2sbi(inode)->ll_stats,
592 rc = ll_local_open(file, it, fd, NULL);
595 cfs_up(&lli->lli_och_sem);
596 ll_file_data_put(fd);
597 GOTO(out_openerr, rc);
600 LASSERT(*och_usecount == 0);
601 if (!it->d.lustre.it_disposition) {
602 /* We cannot just request lock handle now, new ELC code
603 means that one of other OPEN locks for this file
604 could be cancelled, and since blocking ast handler
605 would attempt to grab och_sem as well, that would
606 result in a deadlock */
607 cfs_up(&lli->lli_och_sem);
608 it->it_create_mode |= M_CHECK_STALE;
609 rc = ll_intent_file_open(file, NULL, 0, it);
610 it->it_create_mode &= ~M_CHECK_STALE;
612 ll_file_data_put(fd);
613 GOTO(out_openerr, rc);
616 /* Got some error? Release the request */
617 if (it->d.lustre.it_status < 0) {
618 req = it->d.lustre.it_data;
619 ptlrpc_req_finished(req);
623 OBD_ALLOC(*och_p, sizeof (struct obd_client_handle));
625 ll_file_data_put(fd);
626 GOTO(out_och_free, rc = -ENOMEM);
629 req = it->d.lustre.it_data;
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 ll_file_data_put(fd);
639 GOTO(out_och_free, rc);
642 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_OPEN, 1);
643 rc = ll_local_open(file, it, fd, *och_p);
645 ll_file_data_put(fd);
646 GOTO(out_och_free, rc);
649 cfs_up(&lli->lli_och_sem);
651 /* Must do this outside lli_och_sem lock to prevent deadlock where
652 different kind of OPEN lock for this same inode gets cancelled
653 by ldlm_cancel_lru */
654 if (!S_ISREG(inode->i_mode))
661 if (file->f_flags & O_LOV_DELAY_CREATE ||
662 !(file->f_mode & FMODE_WRITE)) {
663 CDEBUG(D_INODE, "object creation was delayed\n");
667 file->f_flags &= ~O_LOV_DELAY_CREATE;
670 ptlrpc_req_finished(req);
672 it_clear_disposition(it, DISP_ENQ_OPEN_REF);
676 OBD_FREE(*och_p, sizeof (struct obd_client_handle));
677 *och_p = NULL; /* OBD_FREE writes some magic there */
680 cfs_up(&lli->lli_och_sem);
682 if (opendir_set != 0)
683 ll_stop_statahead(inode, lli->lli_opendir_key);
689 /* Fills the obdo with the attributes for the lsm */
690 static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
691 struct obd_capa *capa, struct obdo *obdo,
692 __u64 ioepoch, int sync)
694 struct ptlrpc_request_set *set;
695 struct obd_info oinfo = { { { 0 } } };
700 LASSERT(lsm != NULL);
704 oinfo.oi_oa->o_id = lsm->lsm_object_id;
705 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
706 oinfo.oi_oa->o_mode = S_IFREG;
707 oinfo.oi_oa->o_ioepoch = ioepoch;
708 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE |
709 OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
710 OBD_MD_FLBLKSZ | OBD_MD_FLATIME |
711 OBD_MD_FLMTIME | OBD_MD_FLCTIME |
712 OBD_MD_FLGROUP | OBD_MD_FLEPOCH;
713 oinfo.oi_capa = capa;
715 oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS;
716 oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK;
719 set = ptlrpc_prep_set();
721 CERROR("can't allocate ptlrpc set\n");
724 rc = obd_getattr_async(exp, &oinfo, set);
726 rc = ptlrpc_set_wait(set);
727 ptlrpc_set_destroy(set);
730 oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ |
731 OBD_MD_FLATIME | OBD_MD_FLMTIME |
732 OBD_MD_FLCTIME | OBD_MD_FLSIZE);
737 * Performs the getattr on the inode and updates its fields.
738 * If @sync != 0, perform the getattr under the server-side lock.
740 int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
741 __u64 ioepoch, int sync)
743 struct ll_inode_info *lli = ll_i2info(inode);
744 struct obd_capa *capa = ll_mdscapa_get(inode);
748 rc = ll_lsm_getattr(lli->lli_smd, ll_i2dtexp(inode),
749 capa, obdo, ioepoch, sync);
752 obdo_refresh_inode(inode, obdo, obdo->o_valid);
754 "objid "LPX64" size %Lu, blocks %llu, blksize %lu\n",
755 lli->lli_smd->lsm_object_id, i_size_read(inode),
756 (unsigned long long)inode->i_blocks,
757 (unsigned long)ll_inode_blksize(inode));
762 int ll_merge_lvb(struct inode *inode)
764 struct ll_inode_info *lli = ll_i2info(inode);
765 struct ll_sb_info *sbi = ll_i2sbi(inode);
771 ll_inode_size_lock(inode, 1);
772 inode_init_lvb(inode, &lvb);
774 /* merge timestamps the most resently obtained from mds with
775 timestamps obtained from osts */
776 lvb.lvb_atime = lli->lli_lvb.lvb_atime;
777 lvb.lvb_mtime = lli->lli_lvb.lvb_mtime;
778 lvb.lvb_ctime = lli->lli_lvb.lvb_ctime;
779 rc = obd_merge_lvb(sbi->ll_dt_exp, lli->lli_smd, &lvb, 0);
780 cl_isize_write_nolock(inode, lvb.lvb_size);
782 CDEBUG(D_VFSTRACE, DFID" updating i_size "LPU64"\n",
783 PFID(&lli->lli_fid), lvb.lvb_size);
784 inode->i_blocks = lvb.lvb_blocks;
786 LTIME_S(inode->i_mtime) = lvb.lvb_mtime;
787 LTIME_S(inode->i_atime) = lvb.lvb_atime;
788 LTIME_S(inode->i_ctime) = lvb.lvb_ctime;
789 ll_inode_size_unlock(inode, 1);
794 int ll_glimpse_ioctl(struct ll_sb_info *sbi, struct lov_stripe_md *lsm,
797 struct obdo obdo = { 0 };
800 rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, &obdo, 0, 0);
802 st->st_size = obdo.o_size;
803 st->st_blocks = obdo.o_blocks;
804 st->st_mtime = obdo.o_mtime;
805 st->st_atime = obdo.o_atime;
806 st->st_ctime = obdo.o_ctime;
811 void ll_io_init(struct cl_io *io, const struct file *file, int write)
813 struct inode *inode = file->f_dentry->d_inode;
815 memset(io, 0, sizeof *io);
816 io->u.ci_rw.crw_nonblock = file->f_flags & O_NONBLOCK;
818 io->u.ci_wr.wr_append = !!(file->f_flags & O_APPEND);
819 io->ci_obj = ll_i2info(inode)->lli_clob;
820 io->ci_lockreq = CILR_MAYBE;
821 if (ll_file_nolock(file)) {
822 io->ci_lockreq = CILR_NEVER;
823 io->ci_no_srvlock = 1;
824 } else if (file->f_flags & O_APPEND) {
825 io->ci_lockreq = CILR_MANDATORY;
829 static ssize_t ll_file_io_generic(const struct lu_env *env,
830 struct vvp_io_args *args, struct file *file,
831 enum cl_io_type iot, loff_t *ppos, size_t count)
837 io = &ccc_env_info(env)->cti_io;
838 ll_io_init(io, file, iot == CIT_WRITE);
840 if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) {
841 struct vvp_io *vio = vvp_env_io(env);
842 struct ccc_io *cio = ccc_env_io(env);
843 struct ll_inode_info *lli = ll_i2info(file->f_dentry->d_inode);
844 int write_sem_locked = 0;
846 cio->cui_fd = LUSTRE_FPRIVATE(file);
847 vio->cui_io_subtype = args->via_io_subtype;
849 switch (vio->cui_io_subtype) {
851 cio->cui_iov = args->u.normal.via_iov;
852 cio->cui_nrsegs = args->u.normal.via_nrsegs;
853 cio->cui_tot_nrsegs = cio->cui_nrsegs;
854 #ifndef HAVE_FILE_WRITEV
855 cio->cui_iocb = args->u.normal.via_iocb;
857 if ((iot == CIT_WRITE) &&
858 !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
859 if(cfs_down_interruptible(&lli->lli_write_sem))
860 GOTO(out, result = -ERESTARTSYS);
861 write_sem_locked = 1;
865 vio->u.sendfile.cui_actor = args->u.sendfile.via_actor;
866 vio->u.sendfile.cui_target = args->u.sendfile.via_target;
869 vio->u.splice.cui_pipe = args->u.splice.via_pipe;
870 vio->u.splice.cui_flags = args->u.splice.via_flags;
873 CERROR("Unknow IO type - %u\n", vio->cui_io_subtype);
876 result = cl_io_loop(env, io);
877 if (write_sem_locked)
878 cfs_up(&lli->lli_write_sem);
880 /* cl_io_rw_init() handled IO */
881 result = io->ci_result;
884 if (io->ci_nob > 0) {
886 *ppos = io->u.ci_wr.wr.crw_pos;
896 * XXX: exact copy from kernel code (__generic_file_aio_write_nolock)
898 static int ll_file_get_iov_count(const struct iovec *iov,
899 unsigned long *nr_segs, size_t *count)
904 for (seg = 0; seg < *nr_segs; seg++) {
905 const struct iovec *iv = &iov[seg];
908 * If any segment has a negative length, or the cumulative
909 * length ever wraps negative then return -EINVAL.
912 if (unlikely((ssize_t)(cnt|iv->iov_len) < 0))
914 if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len))
919 cnt -= iv->iov_len; /* This segment is no good */
926 #ifdef HAVE_FILE_READV
927 static ssize_t ll_file_readv(struct file *file, const struct iovec *iov,
928 unsigned long nr_segs, loff_t *ppos)
931 struct vvp_io_args *args;
937 result = ll_file_get_iov_count(iov, &nr_segs, &count);
941 env = cl_env_get(&refcheck);
943 RETURN(PTR_ERR(env));
945 args = vvp_env_args(env, IO_NORMAL);
946 args->u.normal.via_iov = (struct iovec *)iov;
947 args->u.normal.via_nrsegs = nr_segs;
949 result = ll_file_io_generic(env, args, file, CIT_READ, ppos, count);
950 cl_env_put(env, &refcheck);
954 static ssize_t ll_file_read(struct file *file, char *buf, size_t count,
958 struct iovec *local_iov;
963 env = cl_env_get(&refcheck);
965 RETURN(PTR_ERR(env));
967 local_iov = &vvp_env_info(env)->vti_local_iov;
968 local_iov->iov_base = (void __user *)buf;
969 local_iov->iov_len = count;
970 result = ll_file_readv(file, local_iov, 1, ppos);
971 cl_env_put(env, &refcheck);
976 static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
977 unsigned long nr_segs, loff_t pos)
980 struct vvp_io_args *args;
986 result = ll_file_get_iov_count(iov, &nr_segs, &count);
990 env = cl_env_get(&refcheck);
992 RETURN(PTR_ERR(env));
994 args = vvp_env_args(env, IO_NORMAL);
995 args->u.normal.via_iov = (struct iovec *)iov;
996 args->u.normal.via_nrsegs = nr_segs;
997 args->u.normal.via_iocb = iocb;
999 result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_READ,
1000 &iocb->ki_pos, count);
1001 cl_env_put(env, &refcheck);
1005 static ssize_t ll_file_read(struct file *file, char *buf, size_t count,
1009 struct iovec *local_iov;
1010 struct kiocb *kiocb;
1015 env = cl_env_get(&refcheck);
1017 RETURN(PTR_ERR(env));
1019 local_iov = &vvp_env_info(env)->vti_local_iov;
1020 kiocb = &vvp_env_info(env)->vti_kiocb;
1021 local_iov->iov_base = (void __user *)buf;
1022 local_iov->iov_len = count;
1023 init_sync_kiocb(kiocb, file);
1024 kiocb->ki_pos = *ppos;
1025 kiocb->ki_left = count;
1027 result = ll_file_aio_read(kiocb, local_iov, 1, kiocb->ki_pos);
1028 *ppos = kiocb->ki_pos;
1030 cl_env_put(env, &refcheck);
1036 * Write to a file (through the page cache).
1038 #ifdef HAVE_FILE_WRITEV
1039 static ssize_t ll_file_writev(struct file *file, const struct iovec *iov,
1040 unsigned long nr_segs, loff_t *ppos)
1043 struct vvp_io_args *args;
1049 result = ll_file_get_iov_count(iov, &nr_segs, &count);
1053 env = cl_env_get(&refcheck);
1055 RETURN(PTR_ERR(env));
1057 args = vvp_env_args(env, IO_NORMAL);
1058 args->u.normal.via_iov = (struct iovec *)iov;
1059 args->u.normal.via_nrsegs = nr_segs;
1061 result = ll_file_io_generic(env, args, file, CIT_WRITE, ppos, count);
1062 cl_env_put(env, &refcheck);
1066 static ssize_t ll_file_write(struct file *file, const char *buf, size_t count,
1070 struct iovec *local_iov;
1075 env = cl_env_get(&refcheck);
1077 RETURN(PTR_ERR(env));
1079 local_iov = &vvp_env_info(env)->vti_local_iov;
1080 local_iov->iov_base = (void __user *)buf;
1081 local_iov->iov_len = count;
1083 result = ll_file_writev(file, local_iov, 1, ppos);
1084 cl_env_put(env, &refcheck);
1088 #else /* AIO stuff */
1089 static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
1090 unsigned long nr_segs, loff_t pos)
1093 struct vvp_io_args *args;
1099 result = ll_file_get_iov_count(iov, &nr_segs, &count);
1103 env = cl_env_get(&refcheck);
1105 RETURN(PTR_ERR(env));
1107 args = vvp_env_args(env, IO_NORMAL);
1108 args->u.normal.via_iov = (struct iovec *)iov;
1109 args->u.normal.via_nrsegs = nr_segs;
1110 args->u.normal.via_iocb = iocb;
1112 result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE,
1113 &iocb->ki_pos, count);
1114 cl_env_put(env, &refcheck);
1118 static ssize_t ll_file_write(struct file *file, const char *buf, size_t count,
1122 struct iovec *local_iov;
1123 struct kiocb *kiocb;
1128 env = cl_env_get(&refcheck);
1130 RETURN(PTR_ERR(env));
1132 local_iov = &vvp_env_info(env)->vti_local_iov;
1133 kiocb = &vvp_env_info(env)->vti_kiocb;
1134 local_iov->iov_base = (void __user *)buf;
1135 local_iov->iov_len = count;
1136 init_sync_kiocb(kiocb, file);
1137 kiocb->ki_pos = *ppos;
1138 kiocb->ki_left = count;
1140 result = ll_file_aio_write(kiocb, local_iov, 1, kiocb->ki_pos);
1141 *ppos = kiocb->ki_pos;
1143 cl_env_put(env, &refcheck);
1149 #ifdef HAVE_KERNEL_SENDFILE
1151 * Send file content (through pagecache) somewhere with helper
1153 static ssize_t ll_file_sendfile(struct file *in_file, loff_t *ppos,size_t count,
1154 read_actor_t actor, void *target)
1157 struct vvp_io_args *args;
1162 env = cl_env_get(&refcheck);
1164 RETURN(PTR_ERR(env));
1166 args = vvp_env_args(env, IO_SENDFILE);
1167 args->u.sendfile.via_target = target;
1168 args->u.sendfile.via_actor = actor;
1170 result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
1171 cl_env_put(env, &refcheck);
1176 #ifdef HAVE_KERNEL_SPLICE_READ
1178 * Send file content (through pagecache) somewhere with helper
1180 static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos,
1181 struct pipe_inode_info *pipe, size_t count,
1185 struct vvp_io_args *args;
1190 env = cl_env_get(&refcheck);
1192 RETURN(PTR_ERR(env));
1194 args = vvp_env_args(env, IO_SPLICE);
1195 args->u.splice.via_pipe = pipe;
1196 args->u.splice.via_flags = flags;
1198 result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
1199 cl_env_put(env, &refcheck);
1204 static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq,
1207 struct obd_export *exp = ll_i2dtexp(inode);
1208 struct obd_trans_info oti = { 0 };
1209 struct obdo *oa = NULL;
1212 struct lov_stripe_md *lsm, *lsm2;
1219 ll_inode_size_lock(inode, 0);
1220 lsm = ll_i2info(inode)->lli_smd;
1222 GOTO(out, rc = -ENOENT);
1223 lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) *
1224 (lsm->lsm_stripe_count));
1226 OBD_ALLOC(lsm2, lsm_size);
1228 GOTO(out, rc = -ENOMEM);
1232 oa->o_nlink = ost_idx;
1233 oa->o_flags |= OBD_FL_RECREATE_OBJS;
1234 oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
1235 obdo_from_inode(oa, inode, &ll_i2info(inode)->lli_fid, OBD_MD_FLTYPE |
1236 OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME);
1237 memcpy(lsm2, lsm, lsm_size);
1238 rc = obd_create(exp, oa, &lsm2, &oti);
1240 OBD_FREE(lsm2, lsm_size);
1243 ll_inode_size_unlock(inode, 0);
1248 static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg)
1250 struct ll_recreate_obj ucreat;
1253 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1256 if (cfs_copy_from_user(&ucreat, (struct ll_recreate_obj *)arg,
1257 sizeof(struct ll_recreate_obj)))
1260 RETURN(ll_lov_recreate(inode, ucreat.lrc_id, 0,
1261 ucreat.lrc_ost_idx));
1264 static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg)
1271 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1274 if (cfs_copy_from_user(&fid, (struct lu_fid *)arg,
1275 sizeof(struct lu_fid)))
1278 id = fid_oid(&fid) | ((fid_seq(&fid) & 0xffff) << 32);
1279 ost_idx = (fid_seq(&fid) >> 16) & 0xffff;
1280 RETURN(ll_lov_recreate(inode, id, 0, ost_idx));
1283 int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file,
1284 int flags, struct lov_user_md *lum, int lum_size)
1286 struct lov_stripe_md *lsm;
1287 struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags};
1291 ll_inode_size_lock(inode, 0);
1292 lsm = ll_i2info(inode)->lli_smd;
1294 ll_inode_size_unlock(inode, 0);
1295 CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n",
1300 rc = ll_intent_file_open(file, lum, lum_size, &oit);
1303 if (it_disposition(&oit, DISP_LOOKUP_NEG))
1304 GOTO(out_req_free, rc = -ENOENT);
1305 rc = oit.d.lustre.it_status;
1307 GOTO(out_req_free, rc);
1309 ll_release_openhandle(file->f_dentry, &oit);
1312 ll_inode_size_unlock(inode, 0);
1313 ll_intent_release(&oit);
1316 ptlrpc_req_finished((struct ptlrpc_request *) oit.d.lustre.it_data);
1320 int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
1321 struct lov_mds_md **lmmp, int *lmm_size,
1322 struct ptlrpc_request **request)
1324 struct ll_sb_info *sbi = ll_i2sbi(inode);
1325 struct mdt_body *body;
1326 struct lov_mds_md *lmm = NULL;
1327 struct ptlrpc_request *req = NULL;
1328 struct md_op_data *op_data;
1331 rc = ll_get_max_mdsize(sbi, &lmmsize);
1335 op_data = ll_prep_md_op_data(NULL, inode, NULL, filename,
1336 strlen(filename), lmmsize,
1337 LUSTRE_OPC_ANY, NULL);
1338 if (op_data == NULL)
1341 op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
1342 rc = md_getattr_name(sbi->ll_md_exp, op_data, &req);
1343 ll_finish_md_op_data(op_data);
1345 CDEBUG(D_INFO, "md_getattr_name failed "
1346 "on %s: rc %d\n", filename, rc);
1350 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1351 LASSERT(body != NULL); /* checked by mdc_getattr_name */
1353 lmmsize = body->eadatasize;
1355 if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
1357 GOTO(out, rc = -ENODATA);
1360 lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD, lmmsize);
1361 LASSERT(lmm != NULL);
1363 if ((lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V1)) &&
1364 (lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V3))) {
1365 GOTO(out, rc = -EPROTO);
1369 * This is coming from the MDS, so is probably in
1370 * little endian. We convert it to host endian before
1371 * passing it to userspace.
1373 if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC)) {
1374 /* if function called for directory - we should
1375 * avoid swab not existent lsm objects */
1376 if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) {
1377 lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
1378 if (S_ISREG(body->mode))
1379 lustre_swab_lov_user_md_objects(
1380 ((struct lov_user_md_v1 *)lmm)->lmm_objects,
1381 ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count);
1382 } else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) {
1383 lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
1384 if (S_ISREG(body->mode))
1385 lustre_swab_lov_user_md_objects(
1386 ((struct lov_user_md_v3 *)lmm)->lmm_objects,
1387 ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count);
1393 *lmm_size = lmmsize;
1398 static int ll_lov_setea(struct inode *inode, struct file *file,
1401 int flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE;
1402 struct lov_user_md *lump;
1403 int lum_size = sizeof(struct lov_user_md) +
1404 sizeof(struct lov_user_ost_data);
1408 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1411 OBD_ALLOC(lump, lum_size);
1415 if (cfs_copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) {
1416 OBD_FREE(lump, lum_size);
1420 rc = ll_lov_setstripe_ea_info(inode, file, flags, lump, lum_size);
1422 OBD_FREE(lump, lum_size);
1426 static int ll_lov_setstripe(struct inode *inode, struct file *file,
1429 struct lov_user_md_v3 lumv3;
1430 struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
1431 struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg;
1432 struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg;
1435 int flags = FMODE_WRITE;
1438 /* first try with v1 which is smaller than v3 */
1439 lum_size = sizeof(struct lov_user_md_v1);
1440 if (cfs_copy_from_user(lumv1, lumv1p, lum_size))
1443 if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
1444 lum_size = sizeof(struct lov_user_md_v3);
1445 if (cfs_copy_from_user(&lumv3, lumv3p, lum_size))
1449 rc = ll_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size);
1451 put_user(0, &lumv1p->lmm_stripe_count);
1452 rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode),
1453 0, ll_i2info(inode)->lli_smd,
1459 static int ll_lov_getstripe(struct inode *inode, unsigned long arg)
1461 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1466 return obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0, lsm,
1470 int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
1472 struct ll_inode_info *lli = ll_i2info(inode);
1473 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1474 struct ccc_grouplock grouplock;
1478 if (ll_file_nolock(file))
1479 RETURN(-EOPNOTSUPP);
1481 cfs_spin_lock(&lli->lli_lock);
1482 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1483 CWARN("group lock already existed with gid %lu\n",
1484 fd->fd_grouplock.cg_gid);
1485 cfs_spin_unlock(&lli->lli_lock);
1488 LASSERT(fd->fd_grouplock.cg_lock == NULL);
1489 cfs_spin_unlock(&lli->lli_lock);
1491 rc = cl_get_grouplock(cl_i2info(inode)->lli_clob,
1492 arg, (file->f_flags & O_NONBLOCK), &grouplock);
1496 cfs_spin_lock(&lli->lli_lock);
1497 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1498 cfs_spin_unlock(&lli->lli_lock);
1499 CERROR("another thread just won the race\n");
1500 cl_put_grouplock(&grouplock);
1504 fd->fd_flags |= LL_FILE_GROUP_LOCKED;
1505 fd->fd_grouplock = grouplock;
1506 cfs_spin_unlock(&lli->lli_lock);
1508 CDEBUG(D_INFO, "group lock %lu obtained\n", arg);
1512 int ll_put_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;
1519 cfs_spin_lock(&lli->lli_lock);
1520 if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
1521 cfs_spin_unlock(&lli->lli_lock);
1522 CWARN("no group lock held\n");
1525 LASSERT(fd->fd_grouplock.cg_lock != NULL);
1527 if (fd->fd_grouplock.cg_gid != arg) {
1528 CWARN("group lock %lu doesn't match current id %lu\n",
1529 arg, fd->fd_grouplock.cg_gid);
1530 cfs_spin_unlock(&lli->lli_lock);
1534 grouplock = fd->fd_grouplock;
1535 memset(&fd->fd_grouplock, 0, sizeof(fd->fd_grouplock));
1536 fd->fd_flags &= ~LL_FILE_GROUP_LOCKED;
1537 cfs_spin_unlock(&lli->lli_lock);
1539 cl_put_grouplock(&grouplock);
1540 CDEBUG(D_INFO, "group lock %lu released\n", arg);
1545 * Close inode open handle
1547 * \param dentry [in] dentry which contains the inode
1548 * \param it [in,out] intent which contains open info and result
1551 * \retval <0 failure
1553 int ll_release_openhandle(struct dentry *dentry, struct lookup_intent *it)
1555 struct inode *inode = dentry->d_inode;
1556 struct obd_client_handle *och;
1562 /* Root ? Do nothing. */
1563 if (dentry->d_inode->i_sb->s_root == dentry)
1566 /* No open handle to close? Move away */
1567 if (!it_disposition(it, DISP_OPEN_OPEN))
1570 LASSERT(it_open_error(DISP_OPEN_OPEN, it) == 0);
1572 OBD_ALLOC(och, sizeof(*och));
1574 GOTO(out, rc = -ENOMEM);
1576 ll_och_fill(ll_i2sbi(inode)->ll_md_exp,
1577 ll_i2info(inode), it, och);
1579 rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
1582 /* this one is in place of ll_file_open */
1583 if (it_disposition(it, DISP_ENQ_OPEN_REF))
1584 ptlrpc_req_finished(it->d.lustre.it_data);
1585 it_clear_disposition(it, DISP_ENQ_OPEN_REF);
1590 * Get size for inode for which FIEMAP mapping is requested.
1591 * Make the FIEMAP get_info call and returns the result.
1593 int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
1596 struct obd_export *exp = ll_i2dtexp(inode);
1597 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1598 struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, };
1599 int vallen = num_bytes;
1603 /* Checks for fiemap flags */
1604 if (fiemap->fm_flags & ~LUSTRE_FIEMAP_FLAGS_COMPAT) {
1605 fiemap->fm_flags &= ~LUSTRE_FIEMAP_FLAGS_COMPAT;
1609 /* Check for FIEMAP_FLAG_SYNC */
1610 if (fiemap->fm_flags & FIEMAP_FLAG_SYNC) {
1611 rc = filemap_fdatawrite(inode->i_mapping);
1616 /* If the stripe_count > 1 and the application does not understand
1617 * DEVICE_ORDER flag, then it cannot interpret the extents correctly.
1619 if (lsm->lsm_stripe_count > 1 &&
1620 !(fiemap->fm_flags & FIEMAP_FLAG_DEVICE_ORDER))
1623 fm_key.oa.o_id = lsm->lsm_object_id;
1624 fm_key.oa.o_seq = lsm->lsm_object_seq;
1625 fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
1627 obdo_from_inode(&fm_key.oa, inode, &ll_i2info(inode)->lli_fid,
1629 /* If filesize is 0, then there would be no objects for mapping */
1630 if (fm_key.oa.o_size == 0) {
1631 fiemap->fm_mapped_extents = 0;
1635 memcpy(&fm_key.fiemap, fiemap, sizeof(*fiemap));
1637 rc = obd_get_info(exp, sizeof(fm_key), &fm_key, &vallen, fiemap, lsm);
1639 CERROR("obd_get_info failed: rc = %d\n", rc);
1644 int ll_fid2path(struct obd_export *exp, void *arg)
1646 struct getinfo_fid2path *gfout, *gfin;
1650 /* Need to get the buflen */
1651 OBD_ALLOC_PTR(gfin);
1654 if (cfs_copy_from_user(gfin, arg, sizeof(*gfin))) {
1659 outsize = sizeof(*gfout) + gfin->gf_pathlen;
1660 OBD_ALLOC(gfout, outsize);
1661 if (gfout == NULL) {
1665 memcpy(gfout, gfin, sizeof(*gfout));
1668 /* Call mdc_iocontrol */
1669 rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL);
1672 if (cfs_copy_to_user(arg, gfout, outsize))
1676 OBD_FREE(gfout, outsize);
1680 static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
1682 struct ll_user_fiemap *fiemap_s;
1683 size_t num_bytes, ret_bytes;
1684 unsigned int extent_count;
1687 /* Get the extent count so we can calculate the size of
1688 * required fiemap buffer */
1689 if (get_user(extent_count,
1690 &((struct ll_user_fiemap __user *)arg)->fm_extent_count))
1692 num_bytes = sizeof(*fiemap_s) + (extent_count *
1693 sizeof(struct ll_fiemap_extent));
1695 OBD_VMALLOC(fiemap_s, num_bytes);
1696 if (fiemap_s == NULL)
1699 /* get the fiemap value */
1700 if (copy_from_user(fiemap_s,(struct ll_user_fiemap __user *)arg,
1702 GOTO(error, rc = -EFAULT);
1704 /* If fm_extent_count is non-zero, read the first extent since
1705 * it is used to calculate end_offset and device from previous
1708 if (copy_from_user(&fiemap_s->fm_extents[0],
1709 (char __user *)arg + sizeof(*fiemap_s),
1710 sizeof(struct ll_fiemap_extent)))
1711 GOTO(error, rc = -EFAULT);
1714 rc = ll_do_fiemap(inode, fiemap_s, num_bytes);
1718 ret_bytes = sizeof(struct ll_user_fiemap);
1720 if (extent_count != 0)
1721 ret_bytes += (fiemap_s->fm_mapped_extents *
1722 sizeof(struct ll_fiemap_extent));
1724 if (copy_to_user((void *)arg, fiemap_s, ret_bytes))
1728 OBD_VFREE(fiemap_s, num_bytes);
1732 int ll_file_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
1735 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1739 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino,
1740 inode->i_generation, inode, cmd);
1741 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
1743 /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
1744 if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
1748 case LL_IOC_GETFLAGS:
1749 /* Get the current value of the file flags */
1750 return put_user(fd->fd_flags, (int *)arg);
1751 case LL_IOC_SETFLAGS:
1752 case LL_IOC_CLRFLAGS:
1753 /* Set or clear specific file flags */
1754 /* XXX This probably needs checks to ensure the flags are
1755 * not abused, and to handle any flag side effects.
1757 if (get_user(flags, (int *) arg))
1760 if (cmd == LL_IOC_SETFLAGS) {
1761 if ((flags & LL_FILE_IGNORE_LOCK) &&
1762 !(file->f_flags & O_DIRECT)) {
1763 CERROR("%s: unable to disable locking on "
1764 "non-O_DIRECT file\n", current->comm);
1768 fd->fd_flags |= flags;
1770 fd->fd_flags &= ~flags;
1773 case LL_IOC_LOV_SETSTRIPE:
1774 RETURN(ll_lov_setstripe(inode, file, arg));
1775 case LL_IOC_LOV_SETEA:
1776 RETURN(ll_lov_setea(inode, file, arg));
1777 case LL_IOC_LOV_GETSTRIPE:
1778 RETURN(ll_lov_getstripe(inode, arg));
1779 case LL_IOC_RECREATE_OBJ:
1780 RETURN(ll_lov_recreate_obj(inode, arg));
1781 case LL_IOC_RECREATE_FID:
1782 RETURN(ll_lov_recreate_fid(inode, arg));
1783 case FSFILT_IOC_FIEMAP:
1784 RETURN(ll_ioctl_fiemap(inode, arg));
1785 case FSFILT_IOC_GETFLAGS:
1786 case FSFILT_IOC_SETFLAGS:
1787 RETURN(ll_iocontrol(inode, file, cmd, arg));
1788 case FSFILT_IOC_GETVERSION_OLD:
1789 case FSFILT_IOC_GETVERSION:
1790 RETURN(put_user(inode->i_generation, (int *)arg));
1791 case LL_IOC_GROUP_LOCK:
1792 RETURN(ll_get_grouplock(inode, file, arg));
1793 case LL_IOC_GROUP_UNLOCK:
1794 RETURN(ll_put_grouplock(inode, file, arg));
1795 case IOC_OBD_STATFS:
1796 RETURN(ll_obd_statfs(inode, (void *)arg));
1798 /* We need to special case any other ioctls we want to handle,
1799 * to send them to the MDS/OST as appropriate and to properly
1800 * network encode the arg field.
1801 case FSFILT_IOC_SETVERSION_OLD:
1802 case FSFILT_IOC_SETVERSION:
1804 case LL_IOC_FLUSHCTX:
1805 RETURN(ll_flush_ctx(inode));
1806 case LL_IOC_PATH2FID: {
1807 if (cfs_copy_to_user((void *)arg, ll_inode2fid(inode),
1808 sizeof(struct lu_fid)))
1813 case OBD_IOC_FID2PATH:
1814 RETURN(ll_fid2path(ll_i2mdexp(inode), (void *)arg));
1816 case LL_IOC_GET_MDTIDX: {
1819 mdtidx = ll_get_mdt_idx(inode);
1823 if (put_user((int)mdtidx, (int*)arg))
1833 ll_iocontrol_call(inode, file, cmd, arg, &err))
1836 RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
1842 loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
1844 struct inode *inode = file->f_dentry->d_inode;
1847 retval = offset + ((origin == 2) ? i_size_read(inode) :
1848 (origin == 1) ? file->f_pos : 0);
1849 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%Lu=%#Lx(%s)\n",
1850 inode->i_ino, inode->i_generation, inode, retval, retval,
1851 origin == 2 ? "SEEK_END": origin == 1 ? "SEEK_CUR" : "SEEK_SET");
1852 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LLSEEK, 1);
1854 if (origin == 2) { /* SEEK_END */
1855 int nonblock = 0, rc;
1857 if (file->f_flags & O_NONBLOCK)
1858 nonblock = LDLM_FL_BLOCK_NOWAIT;
1860 rc = cl_glimpse_size(inode);
1864 offset += i_size_read(inode);
1865 } else if (origin == 1) { /* SEEK_CUR */
1866 offset += file->f_pos;
1870 if (offset >= 0 && offset <= ll_file_maxbytes(inode)) {
1871 if (offset != file->f_pos) {
1872 file->f_pos = offset;
1880 #ifdef HAVE_FLUSH_OWNER_ID
1881 int ll_flush(struct file *file, fl_owner_t id)
1883 int ll_flush(struct file *file)
1886 struct inode *inode = file->f_dentry->d_inode;
1887 struct ll_inode_info *lli = ll_i2info(inode);
1888 struct lov_stripe_md *lsm = lli->lli_smd;
1891 /* catch async errors that were recorded back when async writeback
1892 * failed for pages in this mapping. */
1893 rc = lli->lli_async_rc;
1894 lli->lli_async_rc = 0;
1896 err = lov_test_and_clear_async_rc(lsm);
1901 return rc ? -EIO : 0;
1904 int ll_fsync(struct file *file, struct dentry *dentry, int data)
1906 struct inode *inode = dentry->d_inode;
1907 struct ll_inode_info *lli = ll_i2info(inode);
1908 struct lov_stripe_md *lsm = lli->lli_smd;
1909 struct ptlrpc_request *req;
1910 struct obd_capa *oc;
1913 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1914 inode->i_generation, inode);
1915 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1);
1917 /* fsync's caller has already called _fdata{sync,write}, we want
1918 * that IO to finish before calling the osc and mdc sync methods */
1919 rc = filemap_fdatawait(inode->i_mapping);
1921 /* catch async errors that were recorded back when async writeback
1922 * failed for pages in this mapping. */
1923 err = lli->lli_async_rc;
1924 lli->lli_async_rc = 0;
1928 err = lov_test_and_clear_async_rc(lsm);
1933 oc = ll_mdscapa_get(inode);
1934 err = md_sync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
1940 ptlrpc_req_finished(req);
1947 RETURN(rc ? rc : -ENOMEM);
1949 oa->o_id = lsm->lsm_object_id;
1950 oa->o_seq = lsm->lsm_object_seq;
1951 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
1952 obdo_from_inode(oa, inode, &ll_i2info(inode)->lli_fid,
1953 OBD_MD_FLTYPE | OBD_MD_FLATIME |
1954 OBD_MD_FLMTIME | OBD_MD_FLCTIME |
1957 oc = ll_osscapa_get(inode, CAPA_OPC_OSS_WRITE);
1958 err = obd_sync(ll_i2sbi(inode)->ll_dt_exp, oa, lsm,
1959 0, OBD_OBJECT_EOF, oc);
1969 int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
1971 struct inode *inode = file->f_dentry->d_inode;
1972 struct ll_sb_info *sbi = ll_i2sbi(inode);
1973 struct ldlm_enqueue_info einfo = { .ei_type = LDLM_FLOCK,
1974 .ei_cb_cp =ldlm_flock_completion_ast,
1975 .ei_cbdata = file_lock };
1976 struct md_op_data *op_data;
1977 struct lustre_handle lockh = {0};
1978 ldlm_policy_data_t flock;
1983 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n",
1984 inode->i_ino, file_lock);
1986 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1);
1988 if (file_lock->fl_flags & FL_FLOCK) {
1989 LASSERT((cmd == F_SETLKW) || (cmd == F_SETLK));
1990 /* set missing params for flock() calls */
1991 file_lock->fl_end = OFFSET_MAX;
1992 file_lock->fl_pid = current->tgid;
1994 flock.l_flock.pid = file_lock->fl_pid;
1995 flock.l_flock.start = file_lock->fl_start;
1996 flock.l_flock.end = file_lock->fl_end;
1998 switch (file_lock->fl_type) {
2000 einfo.ei_mode = LCK_PR;
2003 /* An unlock request may or may not have any relation to
2004 * existing locks so we may not be able to pass a lock handle
2005 * via a normal ldlm_lock_cancel() request. The request may even
2006 * unlock a byte range in the middle of an existing lock. In
2007 * order to process an unlock request we need all of the same
2008 * information that is given with a normal read or write record
2009 * lock request. To avoid creating another ldlm unlock (cancel)
2010 * message we'll treat a LCK_NL flock request as an unlock. */
2011 einfo.ei_mode = LCK_NL;
2014 einfo.ei_mode = LCK_PW;
2017 CERROR("unknown fcntl lock type: %d\n", file_lock->fl_type);
2032 flags = LDLM_FL_BLOCK_NOWAIT;
2038 flags = LDLM_FL_TEST_LOCK;
2039 /* Save the old mode so that if the mode in the lock changes we
2040 * can decrement the appropriate reader or writer refcount. */
2041 file_lock->fl_type = einfo.ei_mode;
2044 CERROR("unknown fcntl lock command: %d\n", cmd);
2048 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
2049 LUSTRE_OPC_ANY, NULL);
2050 if (IS_ERR(op_data))
2051 RETURN(PTR_ERR(op_data));
2053 CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#x, mode=%u, "
2054 "start="LPU64", end="LPU64"\n", inode->i_ino, flock.l_flock.pid,
2055 flags, einfo.ei_mode, flock.l_flock.start, flock.l_flock.end);
2057 rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL,
2058 op_data, &lockh, &flock, 0, NULL /* req */, flags);
2060 ll_finish_md_op_data(op_data);
2062 if ((file_lock->fl_flags & FL_FLOCK) &&
2063 (rc == 0 || file_lock->fl_type == F_UNLCK))
2064 ll_flock_lock_file_wait(file, file_lock, (cmd == F_SETLKW));
2065 #ifdef HAVE_F_OP_FLOCK
2066 if ((file_lock->fl_flags & FL_POSIX) &&
2067 (rc == 0 || file_lock->fl_type == F_UNLCK) &&
2068 !(flags & LDLM_FL_TEST_LOCK))
2069 posix_lock_file_wait(file, file_lock);
2075 int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
2082 int ll_have_md_lock(struct inode *inode, __u64 bits, ldlm_mode_t l_req_mode)
2084 struct lustre_handle lockh;
2085 ldlm_policy_data_t policy = { .l_inodebits = {bits}};
2086 ldlm_mode_t mode = (l_req_mode == LCK_MINMODE) ?
2087 (LCK_CR|LCK_CW|LCK_PR|LCK_PW) : l_req_mode;
2095 fid = &ll_i2info(inode)->lli_fid;
2096 CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid),
2097 ldlm_lockname[mode]);
2099 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
2100 if (md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS, &policy,
2107 ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
2108 struct lustre_handle *lockh)
2110 ldlm_policy_data_t policy = { .l_inodebits = {bits}};
2116 fid = &ll_i2info(inode)->lli_fid;
2117 CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
2119 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING;
2120 rc = md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS, &policy,
2121 LCK_CR|LCK_CW|LCK_PR|LCK_PW, lockh);
2125 static int ll_inode_revalidate_fini(struct inode *inode, int rc) {
2126 if (rc == -ENOENT) { /* Already unlinked. Just update nlink
2127 * and return success */
2129 /* This path cannot be hit for regular files unless in
2130 * case of obscure races, so no need to to validate
2132 if (!S_ISREG(inode->i_mode) &&
2133 !S_ISDIR(inode->i_mode))
2138 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
2146 int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
2149 struct inode *inode = dentry->d_inode;
2150 struct ptlrpc_request *req = NULL;
2151 struct ll_sb_info *sbi;
2152 struct obd_export *exp;
2157 CERROR("REPORT THIS LINE TO PETER\n");
2160 sbi = ll_i2sbi(inode);
2162 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%s\n",
2163 inode->i_ino, inode->i_generation, inode, dentry->d_name.name);
2165 exp = ll_i2mdexp(inode);
2167 if (exp->exp_connect_flags & OBD_CONNECT_ATTRFID) {
2168 struct lookup_intent oit = { .it_op = IT_GETATTR };
2169 struct md_op_data *op_data;
2171 /* Call getattr by fid, so do not provide name at all. */
2172 op_data = ll_prep_md_op_data(NULL, dentry->d_parent->d_inode,
2173 dentry->d_inode, NULL, 0, 0,
2174 LUSTRE_OPC_ANY, NULL);
2175 if (IS_ERR(op_data))
2176 RETURN(PTR_ERR(op_data));
2178 oit.it_create_mode |= M_CHECK_STALE;
2179 rc = md_intent_lock(exp, op_data, NULL, 0,
2180 /* we are not interested in name
2183 ll_md_blocking_ast, 0);
2184 ll_finish_md_op_data(op_data);
2185 oit.it_create_mode &= ~M_CHECK_STALE;
2187 rc = ll_inode_revalidate_fini(inode, rc);
2191 rc = ll_revalidate_it_finish(req, &oit, dentry);
2193 ll_intent_release(&oit);
2197 /* Unlinked? Unhash dentry, so it is not picked up later by
2198 do_lookup() -> ll_revalidate_it(). We cannot use d_drop
2199 here to preserve get_cwd functionality on 2.6.
2201 if (!dentry->d_inode->i_nlink) {
2202 cfs_spin_lock(&ll_lookup_lock);
2203 spin_lock(&dcache_lock);
2204 ll_drop_dentry(dentry);
2205 spin_unlock(&dcache_lock);
2206 cfs_spin_unlock(&ll_lookup_lock);
2209 ll_lookup_finish_locks(&oit, dentry);
2210 } else if (!ll_have_md_lock(dentry->d_inode, ibits, LCK_MINMODE)) {
2211 struct ll_sb_info *sbi = ll_i2sbi(dentry->d_inode);
2212 obd_valid valid = OBD_MD_FLGETATTR;
2213 struct md_op_data *op_data;
2216 if (S_ISREG(inode->i_mode)) {
2217 rc = ll_get_max_mdsize(sbi, &ealen);
2220 valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE;
2223 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
2224 0, ealen, LUSTRE_OPC_ANY,
2226 if (op_data == NULL)
2229 op_data->op_valid = valid;
2230 /* Once OBD_CONNECT_ATTRFID is not supported, we can't find one
2231 * capa for this inode. Because we only keep capas of dirs
2233 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
2234 ll_finish_md_op_data(op_data);
2236 rc = ll_inode_revalidate_fini(inode, rc);
2240 rc = ll_prep_inode(&inode, req, NULL);
2243 ptlrpc_req_finished(req);
2247 int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it)
2249 struct inode *inode = dentry->d_inode;
2253 rc = __ll_inode_revalidate_it(dentry, it, MDS_INODELOCK_UPDATE |
2254 MDS_INODELOCK_LOOKUP);
2256 /* if object not yet allocated, don't validate size */
2257 if (rc == 0 && ll_i2info(dentry->d_inode)->lli_smd == NULL) {
2258 LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_lvb.lvb_atime;
2259 LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_lvb.lvb_mtime;
2260 LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_lvb.lvb_ctime;
2264 /* cl_glimpse_size will prefer locally cached writes if they extend
2268 rc = cl_glimpse_size(inode);
2273 int ll_getattr_it(struct vfsmount *mnt, struct dentry *de,
2274 struct lookup_intent *it, struct kstat *stat)
2276 struct inode *inode = de->d_inode;
2277 struct ll_inode_info *lli = ll_i2info(inode);
2280 res = ll_inode_revalidate_it(de, it);
2281 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETATTR, 1);
2286 stat->dev = inode->i_sb->s_dev;
2287 if (ll_need_32bit_api(ll_i2sbi(inode)))
2288 stat->ino = cl_fid_build_ino32(&lli->lli_fid);
2290 stat->ino = inode->i_ino;
2292 stat->mode = inode->i_mode;
2293 stat->nlink = inode->i_nlink;
2294 stat->uid = inode->i_uid;
2295 stat->gid = inode->i_gid;
2296 stat->rdev = kdev_t_to_nr(inode->i_rdev);
2297 stat->atime = inode->i_atime;
2298 stat->mtime = inode->i_mtime;
2299 stat->ctime = inode->i_ctime;
2300 #ifdef HAVE_INODE_BLKSIZE
2301 stat->blksize = inode->i_blksize;
2303 stat->blksize = 1 << inode->i_blkbits;
2306 stat->size = i_size_read(inode);
2307 stat->blocks = inode->i_blocks;
2311 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
2313 struct lookup_intent it = { .it_op = IT_GETATTR };
2315 return ll_getattr_it(mnt, de, &it, stat);
2318 #ifdef HAVE_LINUX_FIEMAP_H
2319 int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2320 __u64 start, __u64 len)
2324 struct ll_user_fiemap *fiemap;
2325 unsigned int extent_count = fieinfo->fi_extents_max;
2327 num_bytes = sizeof(*fiemap) + (extent_count *
2328 sizeof(struct ll_fiemap_extent));
2329 OBD_VMALLOC(fiemap, num_bytes);
2334 fiemap->fm_flags = fieinfo->fi_flags;
2335 fiemap->fm_extent_count = fieinfo->fi_extents_max;
2336 fiemap->fm_start = start;
2337 fiemap->fm_length = len;
2338 memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start,
2339 sizeof(struct ll_fiemap_extent));
2341 rc = ll_do_fiemap(inode, fiemap, num_bytes);
2343 fieinfo->fi_flags = fiemap->fm_flags;
2344 fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents;
2345 memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0],
2346 fiemap->fm_mapped_extents * sizeof(struct ll_fiemap_extent));
2348 OBD_VFREE(fiemap, num_bytes);
2355 int lustre_check_acl(struct inode *inode, int mask)
2357 #ifdef CONFIG_FS_POSIX_ACL
2358 struct ll_inode_info *lli = ll_i2info(inode);
2359 struct posix_acl *acl;
2363 cfs_spin_lock(&lli->lli_lock);
2364 acl = posix_acl_dup(lli->lli_posix_acl);
2365 cfs_spin_unlock(&lli->lli_lock);
2370 rc = posix_acl_permission(inode, acl, mask);
2371 posix_acl_release(acl);
2379 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10))
2380 #ifndef HAVE_INODE_PERMISION_2ARGS
2381 int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd)
2383 int ll_inode_permission(struct inode *inode, int mask)
2389 /* as root inode are NOT getting validated in lookup operation,
2390 * need to do it before permission check. */
2392 if (inode == inode->i_sb->s_root->d_inode) {
2393 struct lookup_intent it = { .it_op = IT_LOOKUP };
2395 rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it,
2396 MDS_INODELOCK_LOOKUP);
2401 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n",
2402 inode->i_ino, inode->i_generation, inode, inode->i_mode, mask);
2404 if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT)
2405 return lustre_check_remote_perm(inode, mask);
2407 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1);
2408 rc = generic_permission(inode, mask, lustre_check_acl);
2413 int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd)
2415 int mode = inode->i_mode;
2418 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), mask %o\n",
2419 inode->i_ino, inode->i_generation, inode, mask);
2421 if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT)
2422 return lustre_check_remote_perm(inode, mask);
2424 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1);
2426 if ((mask & MAY_WRITE) && IS_RDONLY(inode) &&
2427 (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
2429 if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode))
2431 if (current->fsuid == inode->i_uid) {
2434 if (((mode >> 3) & mask & S_IRWXO) != mask)
2436 rc = lustre_check_acl(inode, mask);
2440 goto check_capabilities;
2444 if (cfs_curproc_is_in_groups(inode->i_gid))
2447 if ((mode & mask & S_IRWXO) == mask)
2451 if (!(mask & MAY_EXEC) ||
2452 (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode))
2453 if (cfs_capable(CFS_CAP_DAC_OVERRIDE))
2456 if (cfs_capable(CFS_CAP_DAC_READ_SEARCH) && ((mask == MAY_READ) ||
2457 (S_ISDIR(inode->i_mode) && !(mask & MAY_WRITE))))
2464 #ifdef HAVE_FILE_READV
2465 #define READ_METHOD readv
2466 #define READ_FUNCTION ll_file_readv
2467 #define WRITE_METHOD writev
2468 #define WRITE_FUNCTION ll_file_writev
2470 #define READ_METHOD aio_read
2471 #define READ_FUNCTION ll_file_aio_read
2472 #define WRITE_METHOD aio_write
2473 #define WRITE_FUNCTION ll_file_aio_write
2476 /* -o localflock - only provides locally consistent flock locks */
2477 struct file_operations ll_file_operations = {
2478 .read = ll_file_read,
2479 .READ_METHOD = READ_FUNCTION,
2480 .write = ll_file_write,
2481 .WRITE_METHOD = WRITE_FUNCTION,
2482 .ioctl = ll_file_ioctl,
2483 .open = ll_file_open,
2484 .release = ll_file_release,
2485 .mmap = ll_file_mmap,
2486 .llseek = ll_file_seek,
2487 #ifdef HAVE_KERNEL_SENDFILE
2488 .sendfile = ll_file_sendfile,
2490 #ifdef HAVE_KERNEL_SPLICE_READ
2491 .splice_read = ll_file_splice_read,
2497 struct file_operations ll_file_operations_flock = {
2498 .read = ll_file_read,
2499 .READ_METHOD = READ_FUNCTION,
2500 .write = ll_file_write,
2501 .WRITE_METHOD = WRITE_FUNCTION,
2502 .ioctl = ll_file_ioctl,
2503 .open = ll_file_open,
2504 .release = ll_file_release,
2505 .mmap = ll_file_mmap,
2506 .llseek = ll_file_seek,
2507 #ifdef HAVE_KERNEL_SENDFILE
2508 .sendfile = ll_file_sendfile,
2510 #ifdef HAVE_KERNEL_SPLICE_READ
2511 .splice_read = ll_file_splice_read,
2515 #ifdef HAVE_F_OP_FLOCK
2516 .flock = ll_file_flock,
2518 .lock = ll_file_flock
2521 /* These are for -o noflock - to return ENOSYS on flock calls */
2522 struct file_operations ll_file_operations_noflock = {
2523 .read = ll_file_read,
2524 .READ_METHOD = READ_FUNCTION,
2525 .write = ll_file_write,
2526 .WRITE_METHOD = WRITE_FUNCTION,
2527 .ioctl = ll_file_ioctl,
2528 .open = ll_file_open,
2529 .release = ll_file_release,
2530 .mmap = ll_file_mmap,
2531 .llseek = ll_file_seek,
2532 #ifdef HAVE_KERNEL_SENDFILE
2533 .sendfile = ll_file_sendfile,
2535 #ifdef HAVE_KERNEL_SPLICE_READ
2536 .splice_read = ll_file_splice_read,
2540 #ifdef HAVE_F_OP_FLOCK
2541 .flock = ll_file_noflock,
2543 .lock = ll_file_noflock
2546 struct inode_operations ll_file_inode_operations = {
2547 #ifdef HAVE_VFS_INTENT_PATCHES
2548 .setattr_raw = ll_setattr_raw,
2550 .setattr = ll_setattr,
2551 .truncate = ll_truncate,
2552 .getattr = ll_getattr,
2553 .permission = ll_inode_permission,
2554 .setxattr = ll_setxattr,
2555 .getxattr = ll_getxattr,
2556 .listxattr = ll_listxattr,
2557 .removexattr = ll_removexattr,
2558 #ifdef HAVE_LINUX_FIEMAP_H
2559 .fiemap = ll_fiemap,
2563 /* dynamic ioctl number support routins */
2564 static struct llioc_ctl_data {
2565 cfs_rw_semaphore_t ioc_sem;
2566 cfs_list_t ioc_head;
2568 __RWSEM_INITIALIZER(llioc.ioc_sem),
2569 CFS_LIST_HEAD_INIT(llioc.ioc_head)
2574 cfs_list_t iocd_list;
2575 unsigned int iocd_size;
2576 llioc_callback_t iocd_cb;
2577 unsigned int iocd_count;
2578 unsigned int iocd_cmd[0];
2581 void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
2584 struct llioc_data *in_data = NULL;
2587 if (cb == NULL || cmd == NULL ||
2588 count > LLIOC_MAX_CMD || count < 0)
2591 size = sizeof(*in_data) + count * sizeof(unsigned int);
2592 OBD_ALLOC(in_data, size);
2593 if (in_data == NULL)
2596 memset(in_data, 0, sizeof(*in_data));
2597 in_data->iocd_size = size;
2598 in_data->iocd_cb = cb;
2599 in_data->iocd_count = count;
2600 memcpy(in_data->iocd_cmd, cmd, sizeof(unsigned int) * count);
2602 cfs_down_write(&llioc.ioc_sem);
2603 cfs_list_add_tail(&in_data->iocd_list, &llioc.ioc_head);
2604 cfs_up_write(&llioc.ioc_sem);
2609 void ll_iocontrol_unregister(void *magic)
2611 struct llioc_data *tmp;
2616 cfs_down_write(&llioc.ioc_sem);
2617 cfs_list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) {
2619 unsigned int size = tmp->iocd_size;
2621 cfs_list_del(&tmp->iocd_list);
2622 cfs_up_write(&llioc.ioc_sem);
2624 OBD_FREE(tmp, size);
2628 cfs_up_write(&llioc.ioc_sem);
2630 CWARN("didn't find iocontrol register block with magic: %p\n", magic);
2633 EXPORT_SYMBOL(ll_iocontrol_register);
2634 EXPORT_SYMBOL(ll_iocontrol_unregister);
2636 enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file,
2637 unsigned int cmd, unsigned long arg, int *rcp)
2639 enum llioc_iter ret = LLIOC_CONT;
2640 struct llioc_data *data;
2641 int rc = -EINVAL, i;
2643 cfs_down_read(&llioc.ioc_sem);
2644 cfs_list_for_each_entry(data, &llioc.ioc_head, iocd_list) {
2645 for (i = 0; i < data->iocd_count; i++) {
2646 if (cmd != data->iocd_cmd[i])
2649 ret = data->iocd_cb(inode, file, cmd, arg, data, &rc);
2653 if (ret == LLIOC_STOP)
2656 cfs_up_read(&llioc.ioc_sem);