* git.zen-kernel.org (www.zen-kernel.org)
or my "baby"
if you favor interactivity over (slightly lower) throughput then
# the 2 patches from the subfolder "20_optional_mm_memcopy" from my broken-out tarball
# optionally revert the 2 patches from "12_[dm-devel] [PATCH] DM-CRYPT: Scale to multiple CPUs v3"
and watch closely the following thread which might yield several improving patches: 2.6.36 io bring the system to its knees
(among them ext4: Relax i_mutex hold times)