From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 23 Jul 2007 15:13:06 -0700
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] add __GFP_ZERP to GFP_LEVEL_MASK
Message-Id: <20070723151306.86e3e0ce.akpm@linux-foundation.org>
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To: Christoph Lameter <clameter@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>, Linus Torvalds <torvalds@linux-foundation.org>, linux-kernel <linux-kernel@vger.kernel.org>, Daniel Phillips <phillips@google.com>, linux-mm <linux-mm@kvack.org>
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On Mon, 23 Jul 2007 14:43:23 -0700
Christoph Lameter <clameter@sgi.com> wrote:

> __GFP_ZERO is implemented by the slab allocators (the page allocator
> has no knowledge about the length of the object to be zeroed). The slab
> allocators do not pass __GFP_ZERO to the page allocator.

OK, well that was weird.  So

	kmalloc(42, GFP_KERNEL|__GFP_ZERO);

duplicates

	kzalloc(42, GFP_KERNEL);


Why do it both ways?

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