Re: mm: Do not iterate over NR_CPUS in __zone_pcp_update()

[Tejun Heo]

On 03/08/2010 10:29 PM, Pekka Enberg wrote:
> On Mon, Mar 8, 2010 at 11:21 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>> __zone_pcp_update() iterates over NR_CPUS instead of limiting the
>> access to the possible cpus. This might result in access to
>> uninitialized areas as the per cpu allocator only populates the per
>> cpu memory for possible cpus.
>>
>> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> 
> Looks OK to me.
> 
> Acked-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>

Yeap, that's buggy.

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

I suppose this would go through the mm tree?

Thanks.

-- 
tejun
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