* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011 Whamcloud, Inc.
- *
+ * Copyright (c) 2011, 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
struct inode *inode = dchild->d_inode;
int blocks_per_page = CFS_PAGE_SIZE >> inode->i_blkbits;
int rc, rc2, create;
- cfs_semaphore_t *sem;
+ cfs_mutex_t *mutex;
ENTRY;
LASSERTF(iobuf->dr_npages <= iobuf->dr_max_pages, "%d,%d\n",
if (iobuf->dr_npages == 0)
RETURN(0);
create = 0;
- sem = NULL;
+ mutex = NULL;
} else {
LASSERTF(rw == OBD_BRW_WRITE, "%x\n", rw);
LASSERT(iobuf->dr_npages > 0);
create = 1;
- sem = &obd->u.filter.fo_alloc_lock;
+ mutex = &obd->u.filter.fo_alloc_lock;
lquota_enforce(filter_quota_interface_ref, obd,
iobuf->dr_ignore_quota);
} else {
rc = fsfilt_map_inode_pages(obd, inode, iobuf->dr_pages,
iobuf->dr_npages, iobuf->dr_blocks,
- obdfilter_created_scratchpad, create, sem);
+ obdfilter_created_scratchpad, create, mutex);
}
if (rw == OBD_BRW_WRITE) {
if (rc == -ENOTCONN)
GOTO(cleanup, rc);
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_DQACQ_NET))
+ GOTO(cleanup, rc = -EINPROGRESS);
+
push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
cleanup_phase = 2;
- ll_vfs_dq_init(inode);
fsfilt_check_slow(obd, now, "quota init");
retry:
fsfilt_check_slow(obd, now, "brw_start");
+ /* Locking order: i_mutex -> journal_lock -> dqptr_sem. LU-952 */
+ ll_vfs_dq_init(inode);
+
i = OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME;
/* If the inode still has SUID+SGID bits set (see filter_precreate())
goto retry;
}
- obdo_from_inode(oa, inode, NULL, rc == 0 ? FILTER_VALID_FLAGS : 0 |
- OBD_MD_FLUID |OBD_MD_FLGID);
+ obdo_from_inode(oa, inode, (rc == 0 ? FILTER_VALID_FLAGS : 0) |
+ OBD_MD_FLUID | OBD_MD_FLGID);
lquota_getflag(filter_quota_interface_ref, obd, oa);
rc = err;
}
- if (obd->obd_replayable && !rc && wait_handle)
- LASSERTF(oti->oti_transno <= obd->obd_last_committed,
- "oti_transno "LPU64" last_committed "LPU64"\n",
- oti->oti_transno, obd->obd_last_committed);
+ /* In rare cases fsfilt_commit_wait() will wake up and return after
+ * the transaction has finished its work and updated j_commit_sequence
+ * but the commit callbacks have not been run yet. Wait here until
+ * that is finished so that clients requesting sync IO don't see the
+ * reply transno < last_committed. LU-753 */
+ if (unlikely(obd->obd_replayable && !rc && wait_handle &&
+ oti->oti_transno > obd->obd_last_committed)) {
+ cfs_waitq_t wq;
+ struct l_wait_info lwi =
+ LWI_TIMEOUT_INTERVAL(cfs_time_seconds(5),
+ (cfs_duration_t)((HZ + 4)/5),
+ NULL, NULL);
+ cfs_waitq_init(&wq);
+ l_wait_event(wq,
+ oti->oti_transno <= obd->obd_last_committed,
+ &lwi);
+
+ /* commit callback isn't done after waiting for 5 secs ? */
+ if (unlikely(oti->oti_transno > obd->obd_last_committed))
+ CERROR("transno:"LPU64" > last_committed:"LPU64"\n",
+ oti->oti_transno, obd->obd_last_committed);
+ }
fsfilt_check_slow(obd, now, "commitrw commit");