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authorChristoph Hellwig <hch@infradead.org>2010-06-28 18:34:34 +0400
committerAlex Elder <aelder@sgi.com>2010-07-26 22:16:45 +0400
commit651701d71da4dc0ac607f17a638e77906f0d280e (patch)
tree13df2162d97f9fdd7bb6e2789740fc6e8225b123 /fs/xfs/xfs_log.c
parent2727ccc950ae17375b15005403e1c35ba8fec1df (diff)
downloadlinux-651701d71da4dc0ac607f17a638e77906f0d280e.tar.xz
xfs: remove incorrect log write optimization
We do need a barrier for the first buffer of a split log write. Otherwise we might incorrectly stamp the tail LSN into transactions in the first part of the split write, or not flush data I/O before updating the inode size. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_log.c')
-rw-r--r--fs/xfs/xfs_log.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5a5a54ad3685..f309e1404fd6 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1423,11 +1423,8 @@ xlog_sync(xlog_t *log,
XFS_BUF_BUSY(bp);
XFS_BUF_ASYNC(bp);
bp->b_flags |= XBF_LOG_BUFFER;
- /*
- * Do an ordered write for the log block.
- * Its unnecessary to flush the first split block in the log wrap case.
- */
- if (!split && (log->l_mp->m_flags & XFS_MOUNT_BARRIER))
+
+ if (log->l_mp->m_flags & XFS_MOUNT_BARRIER)
XFS_BUF_ORDERED(bp);
ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);