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authorBenjamin LaHaise <bcrl@kvack.org>2005-06-21 17:14:55 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 18:46:17 -0700
commitc2f29ea111e3344ed48257c2a142c3db514e1529 (patch)
tree6750edefb1f08a6be545250fdaca72fa211ef338 /mm
parent83e5d8f7253cb7b14472385a6d57df1e9f848e8e (diff)
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[PATCH] __read_page_state(): pass unsigned long instead of unsigned
By making the offset argument of __read_page_state an unsigned long instead of unsigned, we can avoid forcing the compiler to sign extend a usually constant argument. This saves 1 instruction on x86-64. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c976628f9d9..10446a64637 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1144,7 +1144,7 @@ void get_full_page_state(struct page_state *ret)
__get_page_state(ret, sizeof(*ret) / sizeof(unsigned long));
}
-unsigned long __read_page_state(unsigned offset)
+unsigned long __read_page_state(unsigned long offset)
{
unsigned long ret = 0;
int cpu;