[PATCH 00/17] Swap-over-NBD without deadlocking V11 · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 01/17] mm: Serialize access to min_free_kbytes · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 07/17] mm: Ignore mempolicies when using ALLOC_NO_WATERMARK · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 14/17] mm: Micro-optimise slab to avoid a function call · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 15/17] nbd: Set SOCK_MEMALLOC for access to PFMEMALLOC reserves · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 17/17] mm: Account for the number of times direct reclaimers get throttled · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 16/17] mm: Throttle direct reclaimers if PF_MEMALLOC reserves are low and swap is backed by network storage · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 13/17] netvm: Set PF_MEMALLOC as appropriate during SKB processing · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 13/17] netvm: Set PF_MEMALLOC as appropriate during SKB processing · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 12/17] netvm: Propagate page->pfmemalloc from skb_alloc_page to skb · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 12/17] netvm: Propagate page->pfmemalloc from skb_alloc_page to skb · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 11/17] netvm: Propagate page->pfmemalloc to skb · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 11/17] netvm: Propagate page->pfmemalloc to skb · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 10/17] netvm: Allow skb allocation to use PFMEMALLOC reserves · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 10/17] netvm: Allow skb allocation to use PFMEMALLOC reserves · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 09/17] netvm: Allow the use of __GFP_MEMALLOC by specific sockets · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 09/17] netvm: Allow the use of __GFP_MEMALLOC by specific sockets · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 08/17] net: Introduce sk_gfp_atomic() to allow addition of GFP flags depending on the individual socket · Mel Gorman <mgorman@suse.de> · 2012-05-17
Re: [PATCH 08/17] net: Introduce sk_gfp_atomic() to allow addition of GFP flags depending on the individual socket · David Miller <davem@davemloft.net> · 2012-05-17
[PATCH 06/17] mm: Only set page->pfmemalloc when ALLOC_NO_WATERMARKS was used · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 05/17] mm: allow PF_MEMALLOC from softirq context · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 04/17] mm: Introduce __GFP_MEMALLOC to allow access to emergency reserves · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 03/17] mm: slub: Optimise the SLUB fast path to avoid pfmemalloc checks · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 02/17] mm: sl[au]b: Add knowledge of PFMEMALLOC reserve pages · Mel Gorman <mgorman@suse.de> · 2012-05-17
[PATCH 02.5] mm: sl[au]b: first remove PFMEMALLOC flag then SLAB flag · Sebastian Andrzej Siewior <hidden> · 2012-06-15
Re: [PATCH 02.5] mm: sl[au]b: first remove PFMEMALLOC flag then SLAB flag · Cong Wang <hidden> · 2012-06-16
Re: [PATCH 02.5] mm: sl[au]b: first remove PFMEMALLOC flag then SLAB flag · Mel Gorman <mgorman@suse.de> · 2012-06-20
Re: [PATCH 00/17] Swap-over-NBD without deadlocking V11 · Eric B Munson <hidden> · 2012-05-18
Re: [PATCH 00/17] Swap-over-NBD without deadlocking V11 · Eric B Munson <hidden> · 2012-05-18

Re: [PATCH 13/17] netvm: Set PF_MEMALLOC as appropriate during SKB processing

From: David Miller <davem@davemloft.net>
Date: 2012-05-17 20:13:32
Also in: linux-mm, lkml

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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