Hi, This series builds to adding support for a different way of doing provided buffers. The interesting bits here are patch 10, which also has some performance numbers an an explanation of it. Patches 1..4 are cleanups that should just applied separately, I think the clean up the existing code quite nicely. Patch 5 is a generic optimization for the buffer list lookups. Patch 6 adds NOP support for provided buffers, just so that we can benchmark the last change. Patches 7..9 are prep for patch 10. Patch 10 finally adds the feature. -- Jens Axboe
