Commit 205516c1 authored Dec 16, 2008 by Ken Chen Committed by Ingo Molnar Dec 16, 2008

x86: convert rdtscll() to use __native_read_tsc



Impact: micro-optimization

Is there any reason why x86 rdtscll have to use the out of line
function instead of inline __native_read_tsc()?  native_read_tsc and
__native_read_tsc is essentially the same functions.

Patch to let x86 rdtscll() to use the inline version of read_tsc.

Signed-off-by: Ken Chen <kenchen@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 5279585f

arch/x86/include/asm/msr.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -181,10 +181,10 @@ static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
		}

		#define rdtscl(low) \
		((low) = (u32)native_read_tsc())
		((low) = (u32)__native_read_tsc())

		#define rdtscll(val) \
		((val) = native_read_tsc())
		((val) = __native_read_tsc())

		#define rdpmc(counter, low, high) \
		do { \