Re: GFP_NOWAIT and GFP_NOMEMALLOC

From: Arjan van de Ven
Date: Tue Sep 29 2009 - 07:59:07 EST


On Tue, 29 Sep 2009 16:55:24 +0530
"Leonidas ." <leonidas137@xxxxxxxxx> wrote:

> Hi list,
>
> I am new here, I have googled/binged enough before posting this
> message, in case of redundancy please point me to appropriate
> links/resources etc.
>
> I want to kmalloc memory while holding spinlocks in process context,
> here I can't use GFP_KERNEL flag since it can sleep. Using GFP_ATOMIC
> guarantees that allocation will succeed by allocating from emergency
> pools if needed. But I dont think, I need to use emergency pool and I
> want to limit my memory consumption to ZONE_NORMAL without sleeping,
> my module is ready to handle the allocation failure if any.

GFP_NOWAIT is what you want.

can you give us a pointer to what your module is about? Maybe there's
better solutions...


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Arjan van de Ven Intel Open Source Technology Centre
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