diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-07-03 13:29:25 (GMT) |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-02-16 16:19:11 (GMT) |
| commit | 17c0e7107bed3d578864e6519f7f4e4c324c8f58 (patch) | |
| tree | 966cff3219781d2ef1ac66988d26207f771e0bf2 /arch/x86 | |
| parent | 3bef444797f7624f8fbd27f4e0334ce96a108725 (diff) | |
| download | linux-17c0e7107bed3d578864e6519f7f4e4c324c8f58.tar.xz | |
x86: Mark atomic irq ops raw for 32bit legacy
The atomic ops emulation for 32bit legacy CPUs floods the tracer with
irq off/on entries. The irq disabled regions are short and therefor
not interesting when chasing long irq disabled latencies. Mark them
raw and keep them out of the trace.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/atomic.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index 8baaa71..8f8217b 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -187,10 +187,10 @@ static inline int atomic_add_return(int i, atomic_t *v) #ifdef CONFIG_M386 no_xadd: /* Legacy 386 processor */ - local_irq_save(flags); + raw_local_irq_save(flags); __i = atomic_read(v); atomic_set(v, i + __i); - local_irq_restore(flags); + raw_local_irq_restore(flags); return i + __i; #endif } |