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    SubjectRe: [PATCH 13/17] netvm: Set PF_MEMALLOC as appropriate during SKB processing
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    From: Mel Gorman <mgorman@suse.de>
    Date: Thu, 17 May 2012 15:50:27 +0100

    > In order to make sure pfmemalloc packets receive all memory
    > needed to proceed, ensure processing of pfmemalloc SKBs happens
    > under PF_MEMALLOC. This is limited to a subset of protocols that
    > are expected to be used for writing to swap. Taps are not allowed to
    > use PF_MEMALLOC as these are expected to communicate with userspace
    > processes which could be paged out.
    >
    > [a.p.zijlstra@chello.nl: Ideas taken from various patches]
    > [jslaby@suse.cz: Lock imbalance fix]
    > Signed-off-by: Mel Gorman <mgorman@suse.de>

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


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