[PATCH 27/27] xfs: avoid a few disk cache flushes

[Alex Elder]

On Fri, 2011-07-01 at 05:43 -0400, Christoph Hellwig wrote:
> There is no need for a pre-flush when doing writing the second part of a
> split log buffer, and if we are using an external log there is no need
> to do a full cache flush of the log device at all given that all writes
> to it use the FUA flag.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Looks good.

Reviewed-by: Alex Elder <aelder at sgi.com>