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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-mm@kvack.org
Cc: David Miller <davem@davemloft.net>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 0/9] VM deadlock avoidance -v10
Date: Tue, 16 Jan 2007 10:45:57 +0100	[thread overview]
Message-ID: <20070116094557.494892000@taijtu.programming.kicks-ass.net> (raw)

These patches implement the basic infrastructure to allow swap over networked
storage.

The basic idea is to reserve some memory up front to use when regular memory
runs out.

To bound network behaviour we accept only a limited number of concurrent 
packets and drop those packets that are not aimed at the connection(s) servicing
the VM. Also all network paths that interact with userspace are to be avoided - 
e.g. taps and NF_QUEUE.

PF_MEMALLOC is set when processing emergency skbs. This makes sense in that we
are indeed working on behalf of the swapper/VM. This allows us to use the 
regular memory allocators for processing but requires that said processing have
bounded memory usage and has that accounted in the reserve.

I am particularly looking for comments on the design; is this acceptable?

Kind regards,
Peter
-- 


             reply	other threads:[~2007-01-16 10:28 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-16  9:45 Peter Zijlstra [this message]
2007-01-16  9:45 ` [PATCH 1/9] mm: page allocation rank Peter Zijlstra
2007-01-16  9:45 ` [PATCH 2/9] mm: slab allocation fairness Peter Zijlstra
2007-01-16  9:46 ` [PATCH 3/9] mm: allow PF_MEMALLOC from softirq context Peter Zijlstra
2007-01-16  9:46 ` [PATCH 4/9] mm: serialize access to min_free_kbytes Peter Zijlstra
2007-01-16  9:46 ` [PATCH 5/9] mm: emergency pool Peter Zijlstra
2007-01-16  9:46 ` [PATCH 6/9] mm: __GFP_EMERGENCY Peter Zijlstra
2007-01-16  9:46 ` [PATCH 7/9] mm: allow mempool to fall back to memalloc reserves Peter Zijlstra
2007-01-16  9:46 ` [PATCH 8/9] slab: kmem_cache_objs_to_pages() Peter Zijlstra
2007-01-16  9:46 ` [PATCH 9/9] net: vm deadlock avoidance core Peter Zijlstra
2007-01-16 13:25   ` Evgeniy Polyakov
2007-01-16 13:47     ` Peter Zijlstra
2007-01-16 15:33       ` Evgeniy Polyakov
2007-01-16 16:08         ` Peter Zijlstra
2007-01-17  4:54           ` Evgeniy Polyakov
2007-01-17  9:07             ` Peter Zijlstra
2007-01-18 10:41               ` Evgeniy Polyakov
2007-01-18 12:18                 ` Peter Zijlstra
2007-01-18 13:58                   ` Possible ways of dealing with OOM conditions Evgeniy Polyakov
2007-01-18 15:10                     ` Peter Zijlstra
2007-01-18 15:50                       ` Evgeniy Polyakov
2007-01-18 17:31                         ` Peter Zijlstra
2007-01-18 18:34                           ` Evgeniy Polyakov
2007-01-19 12:53                             ` Peter Zijlstra
2007-01-19 22:56                               ` Evgeniy Polyakov
2007-01-20 22:36                                 ` Rik van Riel
2007-01-21  1:46                                   ` Evgeniy Polyakov
2007-01-21  2:14                                     ` Evgeniy Polyakov
2007-01-21 16:30                                     ` Rik van Riel
2007-01-19 17:54                           ` Christoph Lameter
2007-01-17  9:12 ` [PATCH 0/9] VM deadlock avoidance -v10 Pavel Machek
2007-01-17  9:20   ` Peter Zijlstra

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