Messages in this thread | | | Date | Thu, 17 May 2012 16:13:16 -0400 (EDT) | Subject | Re: [PATCH 13/17] netvm: Set PF_MEMALLOC as appropriate during SKB processing | From | David Miller <> |
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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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