Re: [PATCH 2/9]: Reduce Log I/O latency

From: Lachlan McIlroy
Date: Sun Nov 25 2007 - 21:13:23 EST


Index: 2.6.x-xfs-new/fs/xfs/xfs_log.c
===================================================================
--- 2.6.x-xfs-new.orig/fs/xfs/xfs_log.c 2007-11-22 10:47:21.945395328 +1100
+++ 2.6.x-xfs-new/fs/xfs/xfs_log.c 2007-11-22 10:53:11.556186722 +1100
@@ -1443,6 +1443,8 @@ xlog_sync(xlog_t *log,
XFS_BUF_ZEROFLAGS(bp);
XFS_BUF_BUSY(bp);
XFS_BUF_ASYNC(bp);
+ XFS_BUF_SET_LOGBUF(bp);
+
/*
* Do an ordered write for the log block.
* Its unnecessary to flush the first split block in the log wrap case.

Whichever way you go with this one Dave you should probably add another
XFS_BUF_SET_LOGBUF() call for the buffer split case further down in the
same function.
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