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[PATCH] mm: optimize the new mprotect() code a bit
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Tue, 26 Sep 2006 06:30:59 +0000 (23:30 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 26 Sep 2006 15:48:44 +0000 (08:48 -0700)
commitc1e6098b23bb46e2b488fe9a26f831f867157483
tree6bac4d3cfaab3e7153a15d1a24f9211b2de37ba6tree | snapshot (tar.gz zip)
parentedc79b2a46ed854595e40edcf3f8b37f9f14aa3fcommit | diff
[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>
mm/mprotect.c diff | blob | blame | history