Commit-ID: 17c0e7107bed3d578864e6519f7f4e4c324c8f58 Gitweb: http://git.kernel.org/tip/17c0e7107bed3d578864e6519f7f4e4c324c8f58 Author: Ingo Molnar <mingo@xxxxxxx> AuthorDate: Fri, 3 Jul 2009 08:29:25 -0500 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Tue, 16 Feb 2010 17:19:11 +0100 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@xxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- 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 } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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