On Sun, Apr 24, 2011 at 03:06:16PM -0400, Christoph Hellwig wrote: > Update the extent tree in case we have to reuse a busy extent, so that it > always is kept uptodate. This is done by replacing the busy list searches > with a new xfs_alloc_busy_reuse helper, which updates the busy extent tree > in case of a reuse. This allows us to allow reusing metadata extents > unconditionally, and thus avoid log forces especially for allocation btree > blocks. I'd add one comment to this - that this returns to the old way of clearing busy extents by issuing a sync log force with the AGF locked. This can cause additional allocation latency, but should be rare given the occurrence of of metadata->data reallocation. > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Reviewed-by: Alex Elder <aelder@xxxxxxx> Otherwise, Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx> -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
