tree f7f9d092ac0ed8bd734245d803b563b5e751c8ad
parent fc3012896337c83a056c496d7cfb0072e1591181
author Christoph Lameter <clameter@sgi.com> 1137634950 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1137640817 -0800

[PATCH] Zone reclaim: resurrect may_swap

Zone reclaim has a huge impact on NUMA performance (f.e.  our maximum
throughput with XFS is raised from 4GB to 6GB/sec / page cache contamination
of numa nodes destroys locality if one just does a large copy operation which
results in performance dropping for good until reboot).

This patch:

Resurrect may_swap in struct scan_control

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>