diff options
| author | Andi Kleen <ak@suse.de> | 2008-01-30 13:32:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:32:39 +0100 |
| commit | 6d63de8dbcda98511206897562ecfcdacf18f523 (patch) | |
| tree | f845f109636c3cc7eddad455b89ffb986a1188d0 /arch/x86/kernel/time_64.c | |
| parent | f06e4ec1c15691b0cfd2397ae32214fa36c90d71 (diff) | |
x86: remove get_cycles_sync
rdtsc is now speculation-safe, so no need for the sync variants of
the APIs.
[ mingo@elte.hu: removed the nsec_barrier() complication. ]
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/time_64.c')
| -rw-r--r-- | arch/x86/kernel/time_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c index 91d4d495904..61b17f5ec86 100644 --- a/arch/x86/kernel/time_64.c +++ b/arch/x86/kernel/time_64.c @@ -83,7 +83,7 @@ unsigned long __init native_calculate_cpu_khz(void) rdtscl(tsc_start); do { rdmsrl(MSR_K7_PERFCTR0 + i, pmc_now); - tsc_now = get_cycles_sync(); + tsc_now = get_cycles(); } while ((tsc_now - tsc_start) < TICK_COUNT); local_irq_restore(flags); |