This series optimizes how XFS deals with busy extents. It starts to track them exactly, and allows reuses where possible (metadata to metadata) or else tries to avoid busy extents during allocations. This means we don't have a single log force due to busy extents during either xfstests, compilebench or postmark on my testsystem, which can easily be tracked using the new tracepoints added in the last patch. This is a repost of the previous series and should address all review comments. The discard support, which relies on the exact busy extent tracking has been dropped temporarily until I can fix up some issues that I found during testing. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
