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authorDave Kleikamp <shaggy@austin.ibm.com>2005-05-02 12:25:08 -0600
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-02 22:23:53 -0700
commit1c6278295d6482edaaaef5faa64b18f17b3319b7 (patch)
tree226896c455d8a4996527c4a0ec5699956c657ec3 /fs/jfs/jfs_logmgr.c
parent7fab479bebb96b1b4888bdae9b42e1fa9c5d3f38 (diff)
downloadop-kernel-dev-1c6278295d6482edaaaef5faa64b18f17b3319b7.zip
op-kernel-dev-1c6278295d6482edaaaef5faa64b18f17b3319b7.tar.gz
[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>
Diffstat (limited to 'fs/jfs/jfs_logmgr.c')
-rw-r--r--fs/jfs/jfs_logmgr.c17
1 files changed, 14 insertions, 3 deletions
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 @@ static void lmPostGC(struct lbuf * bp)
* 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 @@ static int lmLogSync(struct jfs_log * log, int nosyncwait)
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()
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