[PATCH] JFS: Write journal sync points more often
This patch adds jfs_syncpt, which calls lmLogSync to write sync points
to the journal both in jfs_sync_fs and when sync barrier processing
completes.
lmLogSync accomplishes two things: 1) it pushes logged-but-dirty
metadata pages to disk, and 2) it writes a sync record to the journal
so that jfs_fsck doesn't need to replay more transactions than is
necessary.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index bbc9c14..e93d01a 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -567,9 +567,6 @@
* synchronize with logsync barrier
*/
if (test_bit(log_SYNCBARRIER, &log->flag)) {
- /* forward log syncpt */
- /* lmSync(log); */
-
jfs_info("log barrier off: 0x%x", log->lsn);
/* enable new transactions start */
@@ -577,15 +574,22 @@
/* wakeup all waitors for logsync barrier */
TXN_WAKEUP(&log->syncwait);
+
+ TXN_UNLOCK();
+
+ /* forward log syncpt */
+ jfs_syncpt(log);
+
+ goto wakeup;
}
}
+ TXN_UNLOCK();
+wakeup:
/*
* wakeup all waitors for a free tblock
*/
TXN_WAKEUP(&TxAnchor.freewait);
-
- TXN_UNLOCK();
}
