On Tue 29-09-20 17:38:43, Joonsoo Kim wrote:
> 2020년 9월 29일 (화) 오후 5:08, Michal Hocko 님이 작성:
> >
> > On Mon 28-09-20 17:50:46, Joonsoo Kim wrote:
> > > From: Joonsoo Kim
> > >
> > > memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> > > on CMA area, but, there is a missing
2020년 9월 29일 (화) 오후 5:08, Michal Hocko 님이 작성:
>
> On Mon 28-09-20 17:50:46, Joonsoo Kim wrote:
> > From: Joonsoo Kim
> >
> > memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> > on CMA area, but, there is a missing case and the page on CMA area could
> > be allocated even if
On 9/28/20 10:50 AM, js1...@gmail.com wrote:
> From: Joonsoo Kim
>
> memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> on CMA area, but, there is a missing case and the page on CMA area could
> be allocated even if APIs are used. This patch handles this case to fix
> the
On Mon 28-09-20 17:50:46, Joonsoo Kim wrote:
> From: Joonsoo Kim
>
> memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> on CMA area, but, there is a missing case and the page on CMA area could
> be allocated even if APIs are used. This patch handles this case to fix
> the
2020년 9월 29일 (화) 오후 1:50, Andrew Morton 님이 작성:
>
> On Tue, 29 Sep 2020 10:28:05 +0900 Joonsoo Kim wrote:
>
> > > What about manually emptying the pcplists beforehand?
> >
> > It also increases the probability. schedule() or interrupt after emptying
> > but
> > before the allocation could
On Tue, 29 Sep 2020 10:28:05 +0900 Joonsoo Kim wrote:
> > What about manually emptying the pcplists beforehand?
>
> It also increases the probability. schedule() or interrupt after emptying but
> before the allocation could invalidate the effect.
Keep local interrupts disabled across the pcp
2020년 9월 29일 (화) 오전 8:52, Andrew Morton 님이 작성:
>
> On Mon, 28 Sep 2020 17:50:46 +0900 js1...@gmail.com wrote:
>
> > From: Joonsoo Kim
> >
> > memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> > on CMA area, but, there is a missing case and the page on CMA area could
> > be
On Mon, 28 Sep 2020 17:50:46 +0900 js1...@gmail.com wrote:
> From: Joonsoo Kim
>
> memalloc_nocma_{save/restore} APIs can be used to skip page allocation
> on CMA area, but, there is a missing case and the page on CMA area could
> be allocated even if APIs are used. This patch handles this case
From: Joonsoo Kim
memalloc_nocma_{save/restore} APIs can be used to skip page allocation
on CMA area, but, there is a missing case and the page on CMA area could
be allocated even if APIs are used. This patch handles this case to fix
the potential issue.
Missing case is an allocation from the
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