tree 6a48d5db83831b6521bbc5795a70ea5ab7446b0e
parent c3dce2d89c269d5373a120d4a22fc2426ec992b0
author Nick Piggin <nickpiggin@yahoo.com.au> 1125788087 -0700
committer Linus Torvalds <torvalds@evo.osdl.org> 1125903943 -0700

[PATCH] mm: micro-optimise rmap

Microoptimise page_add_anon_rmap.  Although these expressions are used only in
the taken branch of the if() statement, the compiler can't reorder them inside
because atomic_inc_and_test is a barrier.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>