path: root/fs/jbd
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 10:16:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 10:16:26 -0700
commit6c5103890057b1bb781b26b7aae38d33e4c517d8 (patch)
treee6e57961dcddcb5841acb34956e70b9dc696a880 /fs/jbd
parentMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300 (diff)
parentDocumentation/iostats.txt: bit-size reference etc. (diff)
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits) Documentation/iostats.txt: bit-size reference etc. cfq-iosched: removing unnecessary think time checking cfq-iosched: Don't clear queue stats when preempt. blk-throttle: Reset group slice when limits are changed blk-cgroup: Only give unaccounted_time under debug cfq-iosched: Don't set active queue in preempt block: fix non-atomic access to genhd inflight structures block: attempt to merge with existing requests on plug flush block: NULL dereference on error path in __blkdev_get() cfq-iosched: Don't update group weights when on service tree fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away block: Require subsystems to explicitly allocate bio_set integrity mempool jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging fs: make fsync_buffers_list() plug mm: make generic_writepages() use plugging blk-cgroup: Add unaccounted time to timeslice_used. block: fixup plugging stubs for !CONFIG_BLOCK block: remove obsolete comments for blkdev_issue_zeroout. blktrace: Use rq->cmd_flags directly in blk_add_trace_rq. ... Fix up conflicts in fs/{aio.c,super.c}
Diffstat (limited to 'fs/jbd')
1 files changed, 11 insertions, 11 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 34a4861c14b8..da871ee084d3 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -20,6 +20,7 @@
#include <linux/mm.h>
#include <linux/pagemap.h>
#include <linux/bio.h>
+#include <linux/blkdev.h>
* Default IO end handler for temporary BJ_IO buffer_heads.
@@ -294,7 +295,7 @@ void journal_commit_transaction(journal_t *journal)
int first_tag = 0;
int tag_flag;
int i;
- int write_op = WRITE_SYNC;
+ struct blk_plug plug;
* First job: lock down the current transaction and wait for
@@ -327,13 +328,6 @@ void journal_commit_transaction(journal_t *journal)
commit_transaction->t_state = T_LOCKED;
- /*
- * Use plugged writes here, since we want to submit several before
- * we unplug the device. We don't do explicit unplugging in here,
- * instead we rely on sync_buffer() doing the unplug for us.
- */
- if (commit_transaction->t_synchronous_commit)
- write_op = WRITE_SYNC_PLUG;
while (commit_transaction->t_updates) {
@@ -418,8 +412,10 @@ void journal_commit_transaction(journal_t *journal)
* Now start flushing things to disk, in the order they appear
* on the transaction lists. Data blocks go first.
+ blk_start_plug(&plug);
err = journal_submit_data_buffers(journal, commit_transaction,
- write_op);
+ blk_finish_plug(&plug);
* Wait for all previously submitted IO to complete.
@@ -480,7 +476,9 @@ void journal_commit_transaction(journal_t *journal)
err = 0;
- journal_write_revoke_records(journal, commit_transaction, write_op);
+ blk_start_plug(&plug);
+ journal_write_revoke_records(journal, commit_transaction, WRITE_SYNC);
* If we found any dirty or locked buffers, then we should have
@@ -650,7 +648,7 @@ start_journal_io:
bh->b_end_io = journal_end_buffer_io_sync;
- submit_bh(write_op, bh);
+ submit_bh(WRITE_SYNC, bh);
@@ -661,6 +659,8 @@ start_journal_io:
+ blk_finish_plug(&plug);
/* Lo and behold: we have just managed to send a transaction to
the log. Before we can commit it, wait for the IO so far to
complete. Control buffers being written are on the