lkml.org 
[lkml]   [2010]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH UPDATED#2 04/16] x86: Use local variable to cache smp_processor_id() in setup_local_APIC()
On Tue, Nov 30, 2010 at 07:11:45PM +0100, Tejun Heo wrote:
> This is a trivial clean up.
>
> * Move initialization of @cpu inside preemption disabled region as
> suggested by Cyrill Gorcunov.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> Cc: Yinghai Lu <yinghai@kernel.org>
> Cc: Cyrill Gorcunov <gorcunov@gmail.com>
> ---
> Alright, updated yet again, but I frankly don't see the point in these

code structure, if we would be referring variable taken inside preempt
off this always look suspicious, i think you agree with me :)

> changes. If setup_local_APIC() is being run from a different CPU, we
> have a much larger problem. We're already accessing cpu local
> resources (tsc, lapic) outside of preemption disabled area. But,
> anyways, I don't think it matters one way or the other.
>
> Thanks.
>


\
 
 \ /
  Last update: 2010-11-30 19:25    [W:0.131 / U:0.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site