diff options
| author |   Benjamin LaHaise <bcrl@kvack.org> | 2005-06-21 17:14:55 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 18:46:17 -0700 |
| commit | c2f29ea111e3344ed48257c2a142c3db514e1529 (patch) | |
| tree | 6750edefb1f08a6be545250fdaca72fa211ef338 /include | |
| parent | [PATCH] __mod_page_state(): pass unsigned long instead of unsigned (diff) | |
| download | linux-dev-c2f29ea111e3344ed48257c2a142c3db514e1529.tar.xz linux-dev-c2f29ea111e3344ed48257c2a142c3db514e1529.zip | |
[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.h | 2 |
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 { extern void get_page_state(struct page_state *ret); extern void get_full_page_state(struct page_state *ret); -extern unsigned long __read_page_state(unsigned offset); +extern unsigned long __read_page_state(unsigned long offset); extern void __mod_page_state(unsigned long offset, unsigned long delta); #define read_page_state(member) \ |