Re: [patch] add optimized generic percpu accessors

From: Ingo Molnar
Date: Sat Jan 31 2009 - 11:01:08 EST



* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> So, upshot, I think the default versions should be wrapped in
> preempt_disable/enable to preserve this interface invariant.

The default ones already are:

#define __percpu_generic_to_op(var, val, op) \
do { \
get_cpu_var(var) op val; \
put_cpu_var(var); \
} while (0)

Ingo
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