Re: cli/sti vs local_cmpxchg and local_add_return
From: David Miller
Date: Tue Mar 17 2009 - 15:28:38 EST
From: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxx>
Date: Tue, 17 Mar 2009 12:06:35 -0400
> But powerpc has non-maskable interrupts, so for less than 4 cycles, I
> think it's better to stay with the local_t variant to be NMI-safe.
Sparc64 has non-maskable interrupts too btw.
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