Re: [PATCH] avr32: Fixup kprobes preemption handling.

From: Paul Mundt
Date: Fri Dec 01 2006 - 02:53:50 EST


On Fri, Dec 01, 2006 at 04:50:50PM +0900, Paul Mundt wrote:
> While working on SH kprobes, I noticed that avr32 got the preemption
> handling wrong in the no probe case. The idea is that upon entry of
> kprobe_handler() preemption is disabled outright across the life of the
> kprobe, only to be re-enabled in post_kprobe_handler().
>
> However, in the event that the probe is never activated, there's never
> any chance of hitting the post probe handler, which allows for the
> current avr32 implementation to disable preemption indefinitely, as it's
> currently missing a re-enable when no probe is activated.
>
> Patch follows.
>
And that's of course..

Signed-off-by: Paul Mundt <lethal@xxxxxxxxxxxx>
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