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| author | Benjamin LaHaise <bcrl@kvack.org> | 2005-06-21 17:14:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 18:46:17 -0700 |
| commit | 83e5d8f7253cb7b14472385a6d57df1e9f848e8e (patch) | |
| tree | bafb314103aefbb5699aed2b2b284d8954a888d9 | |
| parent | 1ad539b2bd89bf2e129123eb24d5bcc4484a35de (diff) | |
| download | op-kernel-dev-83e5d8f7253cb7b14472385a6d57df1e9f848e8e.zip op-kernel-dev-83e5d8f7253cb7b14472385a6d57df1e9f848e8e.tar.gz | |
[PATCH] __mod_page_state(): pass unsigned long instead of unsigned
By making the offset argument of __mod_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>
| -rw-r--r-- | include/linux/page-flags.h | 2 | ||||
| -rw-r--r-- | mm/page_alloc.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index df31389..f2ee9b2 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -136,7 +136,7 @@ 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 void __mod_page_state(unsigned offset, unsigned long delta); +extern void __mod_page_state(unsigned long offset, unsigned long delta); #define read_page_state(member) \ __read_page_state(offsetof(struct page_state, member)) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 70f7102..c976628 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1158,7 +1158,7 @@ unsigned long __read_page_state(unsigned offset) return ret; } -void __mod_page_state(unsigned offset, unsigned long delta) +void __mod_page_state(unsigned long offset, unsigned long delta) { unsigned long flags; void* ptr; |
