1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * linux/fs/obdfilter/filter_io.c
6 * Copyright (c) 2001-2003 Cluster File Systems, Inc.
7 * Author: Peter Braam <braam@clusterfs.com>
8 * Author: Andreas Dilger <adilger@clusterfs.com>
9 * Author: Phil Schwan <phil@clusterfs.com>
11 * This file is part of the Lustre file system, http://www.lustre.org
12 * Lustre is a trademark of Cluster File Systems, Inc.
14 * You may have signed or agreed to another license before downloading
15 * this software. If so, you are bound by the terms and conditions
16 * of that agreement, and the following does not apply to you. See the
17 * LICENSE file included with this distribution for more information.
19 * If you did not agree to a different license, then this copy of Lustre
20 * is open source software; you can redistribute it and/or modify it
21 * under the terms of version 2 of the GNU General Public License as
22 * published by the Free Software Foundation.
24 * In either case, Lustre is distributed in the hope that it will be
25 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
26 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * license text for more details.
30 #ifdef HAVE_KERNEL_CONFIG_H
31 #include <linux/config.h>
33 #include <linux/module.h>
34 #include <linux/pagemap.h> // XXX kill me soon
35 #include <linux/version.h>
36 #include <linux/buffer_head.h>
38 #define DEBUG_SUBSYSTEM S_FILTER
40 #include <obd_class.h>
41 #include <lustre_fsfilt.h>
42 #include <lustre_quota.h>
43 #include "filter_internal.h"
45 /* 512byte block min */
46 #define MAX_BLOCKS_PER_PAGE (CFS_PAGE_SIZE / 512)
48 atomic_t dr_numreqs; /* number of reqs being processed */
49 wait_queue_head_t dr_wait;
53 struct page **dr_pages;
54 unsigned long *dr_blocks;
55 spinlock_t dr_lock; /* IRQ lock */
56 unsigned int dr_ignore_quota:1;
57 struct filter_obd *dr_filter;
60 static void record_start_io(struct filter_iobuf *iobuf, int rw, int size,
61 struct obd_export *exp)
63 struct filter_obd *filter = iobuf->dr_filter;
65 atomic_inc(&iobuf->dr_numreqs);
67 if (rw == OBD_BRW_READ) {
68 atomic_inc(&filter->fo_r_in_flight);
69 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_R_RPC_HIST],
70 atomic_read(&filter->fo_r_in_flight));
71 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_R_DISK_IOSIZE], size);
72 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_RPC_HIST],
73 atomic_read(&filter->fo_r_in_flight));
74 lprocfs_oh_tally_log2(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_DISK_IOSIZE], size);
76 atomic_inc(&filter->fo_w_in_flight);
77 lprocfs_oh_tally(&filter->fo_filter_stats.hist[BRW_W_RPC_HIST],
78 atomic_read(&filter->fo_w_in_flight));
79 lprocfs_oh_tally_log2(&filter->fo_filter_stats.hist[BRW_W_DISK_IOSIZE], size);
80 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_W_RPC_HIST],
81 atomic_read(&filter->fo_w_in_flight));
82 lprocfs_oh_tally_log2(&exp->exp_filter_data.fed_brw_stats.hist[BRW_W_DISK_IOSIZE], size);
86 static void record_finish_io(struct filter_iobuf *iobuf, int rw, int rc)
88 struct filter_obd *filter = iobuf->dr_filter;
90 /* CAVEAT EMPTOR: possibly in IRQ context
91 * DO NOT record procfs stats here!!! */
93 if (rw == OBD_BRW_READ)
94 atomic_dec(&filter->fo_r_in_flight);
96 atomic_dec(&filter->fo_w_in_flight);
98 if (atomic_dec_and_test(&iobuf->dr_numreqs))
99 wake_up(&iobuf->dr_wait);
102 static int dio_complete_routine(struct bio *bio, unsigned int done, int error)
104 struct filter_iobuf *iobuf = bio->bi_private;
107 /* CAVEAT EMPTOR: possibly in IRQ context
108 * DO NOT record procfs stats here!!! */
110 if (bio->bi_size) /* Not complete */
114 CERROR("***** bio->bi_private is NULL! This should never "
115 "happen. Normally, I would crash here, but instead I "
116 "will dump the bio contents to the console. Please "
117 "report this to CFS, along with any interesting "
118 "messages leading up to this point (like SCSI errors, "
119 "perhaps). Because bi_private is NULL, I can't wake up "
120 "the thread that initiated this I/O -- so you will "
121 "probably have to reboot this node.\n");
122 CERROR("bi_next: %p, bi_flags: %lx, bi_rw: %lu, bi_vcnt: %d, "
123 "bi_idx: %d, bi->size: %d, bi_end_io: %p, bi_cnt: %d, "
124 "bi_private: %p\n", bio->bi_next, bio->bi_flags,
125 bio->bi_rw, bio->bi_vcnt, bio->bi_idx, bio->bi_size,
126 bio->bi_end_io, atomic_read(&bio->bi_cnt),
131 spin_lock_irqsave(&iobuf->dr_lock, flags);
132 if (iobuf->dr_error == 0)
133 iobuf->dr_error = error;
134 spin_unlock_irqrestore(&iobuf->dr_lock, flags);
136 record_finish_io(iobuf, test_bit(BIO_RW, &bio->bi_rw) ?
137 OBD_BRW_WRITE : OBD_BRW_READ, error);
139 /* Completed bios used to be chained off iobuf->dr_bios and freed in
140 * filter_clear_dreq(). It was then possible to exhaust the biovec-256
141 * mempool when serious on-disk fragmentation was encountered,
142 * deadlocking the OST. The bios are now released as soon as complete
143 * so the pool cannot be exhausted while IOs are competing. bug 10076 */
148 static int can_be_merged(struct bio *bio, sector_t sector)
155 size = bio->bi_size >> 9;
156 return bio->bi_sector + size == sector ? 1 : 0;
159 struct filter_iobuf *filter_alloc_iobuf(struct filter_obd *filter,
160 int rw, int num_pages)
162 struct filter_iobuf *iobuf;
164 LASSERTF(rw == OBD_BRW_WRITE || rw == OBD_BRW_READ, "%x\n", rw);
166 OBD_ALLOC(iobuf, sizeof(*iobuf));
170 OBD_ALLOC(iobuf->dr_pages, num_pages * sizeof(*iobuf->dr_pages));
171 if (iobuf->dr_pages == NULL)
174 OBD_ALLOC(iobuf->dr_blocks,
175 MAX_BLOCKS_PER_PAGE * num_pages * sizeof(*iobuf->dr_blocks));
176 if (iobuf->dr_blocks == NULL)
179 iobuf->dr_filter = filter;
180 init_waitqueue_head(&iobuf->dr_wait);
181 atomic_set(&iobuf->dr_numreqs, 0);
182 spin_lock_init(&iobuf->dr_lock);
183 iobuf->dr_max_pages = num_pages;
184 iobuf->dr_npages = 0;
189 OBD_FREE(iobuf->dr_pages,
190 num_pages * sizeof(*iobuf->dr_pages));
192 OBD_FREE(iobuf, sizeof(*iobuf));
194 RETURN(ERR_PTR(-ENOMEM));
197 static void filter_clear_iobuf(struct filter_iobuf *iobuf)
199 iobuf->dr_npages = 0;
200 atomic_set(&iobuf->dr_numreqs, 0);
203 void filter_free_iobuf(struct filter_iobuf *iobuf)
205 int num_pages = iobuf->dr_max_pages;
207 filter_clear_iobuf(iobuf);
209 OBD_FREE(iobuf->dr_blocks,
210 MAX_BLOCKS_PER_PAGE * num_pages * sizeof(*iobuf->dr_blocks));
211 OBD_FREE(iobuf->dr_pages,
212 num_pages * sizeof(*iobuf->dr_pages));
216 void filter_iobuf_put(struct filter_obd *filter, struct filter_iobuf *iobuf,
217 struct obd_trans_info *oti)
219 int thread_id = oti ? oti->oti_thread_id : -1;
221 if (unlikely(thread_id < 0)) {
222 filter_free_iobuf(iobuf);
226 LASSERTF(filter->fo_iobuf_pool[thread_id] == iobuf,
227 "iobuf mismatch for thread %d: pool %p iobuf %p\n",
228 thread_id, filter->fo_iobuf_pool[thread_id], iobuf);
229 filter_clear_iobuf(iobuf);
232 int filter_iobuf_add_page(struct obd_device *obd, struct filter_iobuf *iobuf,
233 struct inode *inode, struct page *page)
235 LASSERT(iobuf->dr_npages < iobuf->dr_max_pages);
236 iobuf->dr_pages[iobuf->dr_npages++] = page;
241 int filter_do_bio(struct obd_export *exp, struct inode *inode,
242 struct filter_iobuf *iobuf, int rw)
244 struct obd_device *obd = exp->exp_obd;
245 int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
246 struct page **pages = iobuf->dr_pages;
247 int npages = iobuf->dr_npages;
248 unsigned long *blocks = iobuf->dr_blocks;
249 int total_blocks = npages * blocks_per_page;
250 int sector_bits = inode->i_sb->s_blocksize_bits - 9;
251 unsigned int blocksize = inode->i_sb->s_blocksize;
252 struct bio *bio = NULL;
254 unsigned long start_time = jiffies;
256 unsigned int page_offset;
265 LASSERT(iobuf->dr_npages == npages);
266 LASSERT(total_blocks <= OBDFILTER_CREATED_SCRATCHPAD_ENTRIES);
268 for (page_idx = 0, block_idx = 0;
270 page_idx++, block_idx += blocks_per_page) {
272 page = pages[page_idx];
273 LASSERT (block_idx + blocks_per_page <= total_blocks);
275 for (i = 0, page_offset = 0;
277 i += nblocks, page_offset += blocksize * nblocks) {
281 if (blocks[block_idx + i] == 0) { /* hole */
282 LASSERT(rw == OBD_BRW_READ);
283 memset(kmap(page) + page_offset, 0, blocksize);
288 sector = blocks[block_idx + i] << sector_bits;
290 /* Additional contiguous file blocks? */
291 while (i + nblocks < blocks_per_page &&
292 (sector + nblocks*(blocksize>>9)) ==
293 (blocks[block_idx + i + nblocks] << sector_bits))
297 can_be_merged(bio, sector) &&
298 bio_add_page(bio, page,
299 blocksize * nblocks, page_offset) != 0)
300 continue; /* added this frag OK */
304 bdev_get_queue(bio->bi_bdev);
306 /* Dang! I have to fragment this I/O */
307 CDEBUG(D_INODE, "bio++ sz %d vcnt %d(%d) "
308 "sectors %d(%d) psg %d(%d) hsg %d(%d)\n",
310 bio->bi_vcnt, bio->bi_max_vecs,
311 bio->bi_size >> 9, q->max_sectors,
312 bio_phys_segments(q, bio),
313 q->max_phys_segments,
314 bio_hw_segments(q, bio),
317 record_start_io(iobuf, rw, bio->bi_size, exp);
318 rc = fsfilt_send_bio(rw, obd, inode, bio);
320 CERROR("Can't send bio: %d\n", rc);
321 record_finish_io(iobuf, rw, rc);
327 /* allocate new bio */
328 bio = bio_alloc(GFP_NOIO,
329 (npages - page_idx) * blocks_per_page);
331 CERROR("Can't allocate bio %u*%u = %u pages\n",
332 (npages - page_idx), blocks_per_page,
333 (npages - page_idx) * blocks_per_page);
338 bio->bi_bdev = inode->i_sb->s_bdev;
339 bio->bi_sector = sector;
340 bio->bi_end_io = dio_complete_routine;
341 bio->bi_private = iobuf;
343 rc = bio_add_page(bio, page,
344 blocksize * nblocks, page_offset);
350 record_start_io(iobuf, rw, bio->bi_size, exp);
351 rc = fsfilt_send_bio(rw, obd, inode, bio);
356 CERROR("Can't send bio: %d\n", rc);
357 record_finish_io(iobuf, rw, rc);
362 wait_event(iobuf->dr_wait, atomic_read(&iobuf->dr_numreqs) == 0);
364 if (rw == OBD_BRW_READ) {
365 lprocfs_oh_tally(&obd->u.filter.fo_filter_stats.hist[BRW_R_DIO_FRAGS], frags);
366 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_DIO_FRAGS],
368 lprocfs_oh_tally_log2(&obd->u.filter.fo_filter_stats.hist[BRW_R_IO_TIME],
369 jiffies - start_time);
370 lprocfs_oh_tally_log2(&exp->exp_filter_data.fed_brw_stats.hist[BRW_R_IO_TIME],
371 jiffies - start_time);
373 lprocfs_oh_tally(&obd->u.filter.fo_filter_stats.hist[BRW_W_DIO_FRAGS], frags);
374 lprocfs_oh_tally(&exp->exp_filter_data.fed_brw_stats.hist[BRW_W_DIO_FRAGS],
376 lprocfs_oh_tally_log2(&obd->u.filter.fo_filter_stats.hist[BRW_W_IO_TIME],
377 jiffies - start_time);
378 lprocfs_oh_tally_log2(&exp->exp_filter_data.fed_brw_stats.hist[BRW_W_IO_TIME],
379 jiffies - start_time);
383 rc = iobuf->dr_error;
387 /* These are our hacks to keep our directio/bh IO coherent with ext3's
388 * page cache use. Most notably ext3 reads file data into the page
389 * cache when it is zeroing the tail of partial-block truncates and
390 * leaves it there, sometimes generating io from it at later truncates.
391 * This removes the partial page and its buffers from the page cache,
392 * so it should only ever cause a wait in rare cases, as otherwise we
393 * always do full-page IO to the OST.
395 * The call to truncate_complete_page() will call journal_invalidatepage()
396 * to free the buffers and drop the page from cache. The buffers should
397 * not be dirty, because we already called fdatasync/fdatawait on them.
399 static int filter_sync_inode_data(struct inode *inode, int locked)
403 /* This is nearly do_fsync(), without the waiting on the inode */
404 /* XXX: in 2.6.16 (at least) we don't need to hold i_mutex over
405 * filemap_fdatawrite() and filemap_fdatawait(), so we may no longer
406 * need this lock here at all. */
408 LOCK_INODE_MUTEX(inode);
409 if (inode->i_mapping->nrpages) {
410 current->flags |= PF_SYNCWRITE;
411 rc = filemap_fdatawrite(inode->i_mapping);
413 rc = filemap_fdatawait(inode->i_mapping);
414 current->flags &= ~PF_SYNCWRITE;
417 UNLOCK_INODE_MUTEX(inode);
422 /* Clear pages from the mapping before we do direct IO to that offset.
423 * Now that the only source of such pages in the truncate path flushes
424 * these pages to disk and then discards them, this is error condition.
425 * If add back read cache this will happen again. This could be disabled
426 * until that time if we never see the below error. */
427 static int filter_clear_page_cache(struct inode *inode,
428 struct filter_iobuf *iobuf)
433 rc = filter_sync_inode_data(inode, 0);
437 /* be careful to call this after fsync_inode_data_buffers has waited
438 * for IO to complete before we evict it from the cache */
439 for (i = 0; i < iobuf->dr_npages; i++) {
440 page = find_lock_page(inode->i_mapping,
441 iobuf->dr_pages[i]->index);
444 if (page->mapping != NULL) {
445 CERROR("page %lu (%d/%d) in page cache during write!\n",
446 page->index, i, iobuf->dr_npages);
447 wait_on_page_writeback(page);
448 ll_truncate_complete_page(page);
452 page_cache_release(page);
458 int filter_clear_truncated_page(struct inode *inode)
463 /* Truncate on page boundary, so nothing to flush? */
464 if (!(inode->i_size & ~CFS_PAGE_MASK))
467 rc = filter_sync_inode_data(inode, 1);
471 /* be careful to call this after fsync_inode_data_buffers has waited
472 * for IO to complete before we evict it from the cache */
473 page = find_lock_page(inode->i_mapping,
474 inode->i_size >> CFS_PAGE_SHIFT);
476 if (page->mapping != NULL) {
477 wait_on_page_writeback(page);
478 ll_truncate_complete_page(page);
481 page_cache_release(page);
487 /* Must be called with i_mutex taken for writes; this will drop it */
488 int filter_direct_io(int rw, struct dentry *dchild, struct filter_iobuf *iobuf,
489 struct obd_export *exp, struct iattr *attr,
490 struct obd_trans_info *oti, void **wait_handle)
492 struct obd_device *obd = exp->exp_obd;
493 struct inode *inode = dchild->d_inode;
494 int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
496 struct semaphore *sem;
499 LASSERTF(iobuf->dr_npages <= iobuf->dr_max_pages, "%d,%d\n",
500 iobuf->dr_npages, iobuf->dr_max_pages);
501 LASSERT(iobuf->dr_npages <= OBDFILTER_CREATED_SCRATCHPAD_ENTRIES);
503 if (rw == OBD_BRW_READ) {
504 if (iobuf->dr_npages == 0)
509 LASSERTF(rw == OBD_BRW_WRITE, "%x\n", rw);
510 LASSERT(iobuf->dr_npages > 0);
512 sem = &obd->u.filter.fo_alloc_lock;
514 lquota_enforce(filter_quota_interface_ref, obd,
515 iobuf->dr_ignore_quota);
518 rc = fsfilt_map_inode_pages(obd, inode, iobuf->dr_pages,
519 iobuf->dr_npages, iobuf->dr_blocks,
520 obdfilter_created_scratchpad, create, sem);
523 LASSERT(rw == OBD_BRW_WRITE &&
524 !cap_raised(current->cap_effective, CAP_SYS_RESOURCE));
526 /* Unfortunately, if quota master is too busy to handle the
527 * pre-dqacq in time or this user has exceeded quota limit, we
528 * have to wait for the completion of in flight dqacq/dqrel,
530 if (lquota_acquire(filter_quota_interface_ref, obd,
531 inode->i_uid, inode->i_gid))
535 if (rw == OBD_BRW_WRITE) {
537 filter_tally_write(exp, iobuf->dr_pages,
538 iobuf->dr_npages, iobuf->dr_blocks,
540 if (attr->ia_size > inode->i_size)
541 attr->ia_valid |= ATTR_SIZE;
542 rc = fsfilt_setattr(obd, dchild,
543 oti->oti_handle, attr, 0);
546 UNLOCK_INODE_MUTEX(inode);
548 rc2 = filter_finish_transno(exp, oti, 0);
550 CERROR("can't close transaction: %d\n", rc2);
555 rc2 =fsfilt_commit_async(obd,inode,oti->oti_handle,wait_handle);
560 } else if (rc == 0) {
561 filter_tally_read(exp, iobuf->dr_pages,
562 iobuf->dr_npages, iobuf->dr_blocks,
566 rc = filter_clear_page_cache(inode, iobuf);
570 RETURN(filter_do_bio(exp, inode, iobuf, rw));
573 /* See if there are unallocated parts in given file region */
574 static int filter_range_is_mapped(struct inode *inode, obd_size offset, int len)
576 sector_t (*fs_bmap)(struct address_space *, sector_t) =
577 inode->i_mapping->a_ops->bmap;
580 /* We can't know if we are overwriting or not */
584 offset >>= inode->i_blkbits;
585 len >>= inode->i_blkbits;
587 for (j = 0; j <= len; j++)
588 if (fs_bmap(inode->i_mapping, offset + j) == 0)
594 int filter_commitrw_write(struct obd_export *exp, struct obdo *oa,
595 int objcount, struct obd_ioobj *obj, int niocount,
596 struct niobuf_local *res, struct obd_trans_info *oti,
599 struct niobuf_local *lnb;
600 struct filter_iobuf *iobuf = NULL;
601 struct lvfs_run_ctxt saved;
602 struct fsfilt_objinfo fso;
603 struct iattr iattr = { 0 };
604 struct inode *inode = NULL;
605 unsigned long now = jiffies;
606 int i, err, cleanup_phase = 0;
607 struct obd_device *obd = exp->exp_obd;
610 unsigned int qcids[MAXQUOTAS] = {0, 0};
613 LASSERT(oti != NULL);
614 LASSERT(objcount == 1);
615 LASSERT(current->journal_info == NULL);
620 iobuf = filter_iobuf_get(&obd->u.filter, oti);
622 GOTO(cleanup, rc = PTR_ERR(iobuf));
625 fso.fso_dentry = res->dentry;
626 fso.fso_bufcnt = obj->ioo_bufcnt;
627 inode = res->dentry->d_inode;
629 iobuf->dr_ignore_quota = 0;
630 for (i = 0, lnb = res; i < obj->ioo_bufcnt; i++, lnb++) {
633 /* If overwriting an existing block, we don't need a grant */
634 if (!(lnb->flags & OBD_BRW_GRANTED) && lnb->rc == -ENOSPC &&
635 filter_range_is_mapped(inode, lnb->offset, lnb->len))
638 if (lnb->rc) { /* ENOSPC, network RPC error, etc. */
639 CDEBUG(D_INODE, "Skipping [%d] == %d\n", i, lnb->rc);
643 err = filter_iobuf_add_page(obd, iobuf, inode, lnb->page);
646 total_size += lnb->len;
648 /* we expect these pages to be in offset order, but we'll
650 this_size = lnb->offset + lnb->len;
651 if (this_size > iattr.ia_size)
652 iattr.ia_size = this_size;
654 /* if one page is a write-back page from client cache, or it's
655 * written by root, then mark the whole io request as ignore
657 if (lnb->flags & (OBD_BRW_FROM_GRANT | OBD_BRW_NOQUOTA))
658 iobuf->dr_ignore_quota = 1;
661 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
666 LOCK_INODE_MUTEX(inode);
667 fsfilt_check_slow(obd, now, obd_timeout, "i_mutex");
668 oti->oti_handle = fsfilt_brw_start(obd, objcount, &fso, niocount, res,
670 if (IS_ERR(oti->oti_handle)) {
671 UNLOCK_INODE_MUTEX(inode);
672 rc = PTR_ERR(oti->oti_handle);
673 CDEBUG(rc == -ENOSPC ? D_INODE : D_ERROR,
674 "error starting transaction: rc = %d\n", rc);
675 oti->oti_handle = NULL;
678 /* have to call fsfilt_commit() from this point on */
680 fsfilt_check_slow(obd, now, obd_timeout, "brw_start");
682 i = OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME;
684 /* If the inode still has SUID+SGID bits set (see filter_precreate())
685 * then we will accept the UID+GID if sent by the client for
686 * initializing the ownership of this inode. We only allow this to
687 * happen once (so clear these bits) and later only allow setattr. */
688 if (inode->i_mode & S_ISUID)
690 if (inode->i_mode & S_ISGID)
693 iattr_from_obdo(&iattr, oa, i);
694 if (iattr.ia_valid & (ATTR_UID | ATTR_GID)) {
697 CDEBUG(D_INODE, "update UID/GID to %lu/%lu\n",
698 (unsigned long)oa->o_uid, (unsigned long)oa->o_gid);
700 cap_raise(current->cap_effective, CAP_SYS_RESOURCE);
702 iattr.ia_valid |= ATTR_MODE;
703 iattr.ia_mode = inode->i_mode;
704 if (iattr.ia_valid & ATTR_UID)
705 iattr.ia_mode &= ~S_ISUID;
706 if (iattr.ia_valid & ATTR_GID)
707 iattr.ia_mode &= ~S_ISGID;
709 rc = filter_update_fidea(exp, inode, oti->oti_handle, oa);
711 /* To avoid problems with quotas, UID and GID must be set
712 * in the inode before filter_direct_io() - see bug 10357. */
713 save = iattr.ia_valid;
714 iattr.ia_valid &= (ATTR_UID | ATTR_GID);
715 rc = fsfilt_setattr(obd, res->dentry, oti->oti_handle, &iattr, 0);
716 CDEBUG(D_QUOTA, "set uid(%u)/gid(%u) to ino(%lu). rc(%d)\n",
717 iattr.ia_uid, iattr.ia_gid, inode->i_ino, rc);
718 iattr.ia_valid = save & ~(ATTR_UID | ATTR_GID);
721 /* filter_direct_io drops i_mutex */
722 rc = filter_direct_io(OBD_BRW_WRITE, res->dentry, iobuf, exp, &iattr,
725 obdo_from_inode(oa, inode,
726 FILTER_VALID_FLAGS |OBD_MD_FLUID |OBD_MD_FLGID);
728 obdo_from_inode(oa, inode, OBD_MD_FLUID | OBD_MD_FLGID);
730 lquota_getflag(filter_quota_interface_ref, obd, oa);
732 fsfilt_check_slow(obd, now, obd_timeout, "direct_io");
734 err = fsfilt_commit_wait(obd, inode, wait_handle);
736 CERROR("Failure to commit OST transaction (%d)?\n", err);
740 if (obd->obd_replayable && !rc)
741 LASSERTF(oti->oti_transno <= obd->obd_last_committed,
742 "oti_transno "LPU64" last_committed "LPU64"\n",
743 oti->oti_transno, obd->obd_last_committed);
745 fsfilt_check_slow(obd, now, obd_timeout, "commitrw commit");
748 filter_grant_commit(exp, niocount, res);
750 switch (cleanup_phase) {
752 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
753 LASSERT(current->journal_info == NULL);
755 filter_iobuf_put(&obd->u.filter, iobuf, oti);
758 * lnb->page automatically returns back into per-thread page
764 /* trigger quota pre-acquire */
765 qcids[USRQUOTA] = oa->o_uid;
766 qcids[GRPQUOTA] = oa->o_gid;
767 err = lquota_adjust(filter_quota_interface_ref, obd, qcids, NULL, rc,
769 CDEBUG(err ? D_ERROR : D_QUOTA,
770 "filter adjust qunit! (rc:%d)\n", err);