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authorBenjamin LaHaise <bcrl@kvack.org>2005-06-21 20:14:55 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 21:46:17 -0400
commitc2f29ea111e3344ed48257c2a142c3db514e1529 (patch)
tree6750edefb1f08a6be545250fdaca72fa211ef338 /include
parent83e5d8f7253cb7b14472385a6d57df1e9f848e8e (diff)
[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 'include')
-rw-r--r--include/linux/page-flags.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index f2ee9b2332e3..f5a6695d4d21 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -135,7 +135,7 @@ struct page_state {
135 135
136extern void get_page_state(struct page_state *ret); 136extern void get_page_state(struct page_state *ret);
137extern void get_full_page_state(struct page_state *ret); 137extern void get_full_page_state(struct page_state *ret);
138extern unsigned long __read_page_state(unsigned offset); 138extern unsigned long __read_page_state(unsigned long offset);
139extern void __mod_page_state(unsigned long offset, unsigned long delta); 139extern void __mod_page_state(unsigned long offset, unsigned long delta);
140 140
141#define read_page_state(member) \ 141#define read_page_state(member) \