linux-kernel - Re: [RFC][PATCH 3/9] mm: page->pfmemalloc only used by slab/skb

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Message-ID: <alpine.DEB.2.10.1401141348130.19618@nuc>
Date:	Tue, 14 Jan 2014 13:49:06 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Dave Hansen <dave@...1.net>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, penberg@...nel.org
Subject: Re: [RFC][PATCH 3/9] mm: page->pfmemalloc only used by slab/skb

On Tue, 14 Jan 2014, Dave Hansen wrote:

> page->pfmemalloc does not deserve a spot in 'struct page'.  It is
> only used transiently _just_ after a page leaves the buddy
> allocator.

Why would we need to do this if we are removing the cmpxchg_double?
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