linux-kernel - Re: [PATCH 11/17] netvm: Propagate page->pfmemalloc to skb

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Message-Id: <20120517.161252.896110368946490093.davem@davemloft.net>
Date:	Thu, 17 May 2012 16:12:52 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	mgorman@...e.de
Cc:	akpm@...ux-foundation.org, linux-mm@...ck.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	neilb@...e.de, a.p.zijlstra@...llo.nl, michaelc@...wisc.edu,
	emunson@...bm.net
Subject: Re: [PATCH 11/17] netvm: Propagate page->pfmemalloc to skb

From: Mel Gorman <mgorman@...e.de>
Date: Thu, 17 May 2012 15:50:25 +0100

> The skb->pfmemalloc flag gets set to true iff during the slab
> allocation of data in __alloc_skb that the the PFMEMALLOC reserves
> were used. If the packet is fragmented, it is possible that pages
> will be allocated from the PFMEMALLOC reserve without propagating
> this information to the skb. This patch propagates page->pfmemalloc
> from pages allocated for fragments to the skb.
> 
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Acked-by: David S. Miller <davem@...emloft.net>
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