From: Arjan van de Ven <arjan@infradead.org>
To: "Leonidas ." <leonidas137@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: GFP_NOWAIT and GFP_NOMEMALLOC
Date: Tue, 29 Sep 2009 13:59:25 +0200 [thread overview]
Message-ID: <20090929135925.50ac88bf@infradead.org> (raw)
In-Reply-To: <f22d86810909290425s46406fe5ib00bcfc9673f70df@mail.gmail.com>
On Tue, 29 Sep 2009 16:55:24 +0530
"Leonidas ." <leonidas137@gmail.com> 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...
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2009-09-29 11:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-29 11:25 GFP_NOWAIT and GFP_NOMEMALLOC Leonidas .
2009-09-29 11:59 ` Arjan van de Ven [this message]
2009-09-29 12:16 ` Leonidas .
2009-09-29 12:37 ` Arjan van de Ven
2009-09-29 12:43 ` Leonidas .
2009-10-04 18:56 ` Pavel Machek
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