Commit 83e5d8f7 authored by Benjamin LaHaise's avatar Benjamin LaHaise Committed by Linus Torvalds
Browse files

[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: default avatarBenjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 1ad539b2
......@@ -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))
......
......@@ -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;
......
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