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x86: clean up rdtsc_barrier() use

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Impact: cleanup

Move rdtsc_barrier() use to vsyscall_64.c where it's relied on,
and point out its role in the context of its use.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-11-08 20:27:00 +01:00
parent 895e031707
commit cb9e35dce9
2 changed files with 10 additions and 5 deletions
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6
arch/x86/include/asm/tsc.h
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@ -44,11 +44,7 @@ static __always_inline cycles_t vget_cycles(void)
if (!cpu_has_tsc)
return 0;
#endif
rdtsc_barrier();
cycles = (cycles_t)__native_read_tsc();
rdtsc_barrier();
return cycles;
return (cycles_t)__native_read_tsc();
}
extern void tsc_init(void);