linux-kernel - Re: [PATCH] slab: prevent warnings when allocating with __GFP

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Message-ID: <0000013f33cdc631-eadb07d1-ef08-4e2c-a218-1997eb86cde9-000000@email.amazonses.com>
Date:	Tue, 11 Jun 2013 15:14:51 +0000
From:	Christoph Lameter <cl@...two.org>
To:	Sasha Levin <sasha.levin@...cle.com>
cc:	Pekka Enberg <penberg@...nel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] slab: prevent warnings when allocating with
 __GFP_NOWARN

On Tue, 11 Jun 2013, Sasha Levin wrote:

> I think that leaving the warning makes sense to catch similar
> things which are actually bugs - we had a similar issue with
> /dev/kmsg (if I remember correctly) which actually pointed to
> a bug.

Right. Requesting an allocation larger than even supported by the page
allocator from the slab allocators that are specializing in allocations of
small objects is usually an indication of a problem in the code.

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