tree 6bac4d3cfaab3e7153a15d1a24f9211b2de37ba6
parent edc79b2a46ed854595e40edcf3f8b37f9f14aa3f
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1159252259 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159285724 -0700

[PATCH] mm: optimize the new mprotect() code a bit

mprotect() resets the page protections, which could result in extra write
faults for those pages whose dirty state we track using write faults and are
dirty already.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>