| commit | 2822c1aa574d277b9ba0130b1e71c1a5874bc04a | |
| author | Nick Piggin <nickpiggin@yahoo.com.au> | |
| Sat, 3 Sep 2005 22:54:47 +0000 (3 15:54 -0700) | ||
| committer | Linus Torvalds <torvalds@evo.osdl.org> | |
| Mon, 5 Sep 2005 07:05:43 +0000 (5 00:05 -0700) | ||
| tree | 6a48d5db83831b6521bbc5795a70ea5ab7446b0e | treesnapshot (tar.gz zip) |
| parent | c3dce2d89c269d5373a120d4a22fc2426ec992b0 | commitdiff |
[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>
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>
| mm/rmap.c | diffblobblamehistory |