[ltt-dev] cli/sti vs local_cmpxchg and local_add_return

[David Miller]

From: Mathieu Desnoyers <mathieu.desnoyers at polymtl.ca>
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.