From: Christoph Hellwig <hch@infradead.org>
Date: Mon, 28 Jun 2010 14:34:34 +0000 (-0400)
Subject: xfs: remove incorrect log write optimization
X-Git-Tag: v2.6.36-rc1~589^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=651701d71da4dc0ac607f17a638e77906f0d280e;p=pandora-kernel.git

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>
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