[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_logmgr.c b/fs/jfs/jfs_logmgr.c
index cfcdad3..dfa1200 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -927,9 +927,8 @@
* calculate new value of i_nextsync which determines when
* this code is called again.
*
- * this is called only from lmLog().
- *
- * PARAMETER: ip - pointer to logs inode.
+ * PARAMETERS: log - log structure
+ * nosyncwait - 1 if called asynchronously
*
* RETURN: 0
*
@@ -1051,6 +1050,18 @@
return lsn;
}
+/*
+ * NAME: jfs_syncpt
+ *
+ * FUNCTION: write log SYNCPT record for specified log
+ *
+ * PARAMETERS: log - log structure
+ */
+void jfs_syncpt(struct jfs_log *log)
+{ LOG_LOCK(log);
+ lmLogSync(log, 1);
+ LOG_UNLOCK(log);
+}
/*
* NAME: lmLogOpen()
