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x86: convert rdtscll() to use __native_read_tsc

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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>
This commit is contained in:
Ken Chen 2008-12-16 00:32:21 -08:00 committed by Ingo Molnar
parent 5279585ff2
commit 205516c12d
1 changed files with 2 additions and 2 deletions
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4
arch/x86/include/asm/msr.h
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@ -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 { \