From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Indan Zupancic <indan@nul.nu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
Daniel Phillips <phillips@google.com>,
Rik van Riel <riel@redhat.com>,
David Miller <davem@davemloft.net>
Subject: [RFC][PATCH 0/4] VM deadlock prevention -v4
Date: Sat, 12 Aug 2006 16:14:15 +0200 [thread overview]
Message-ID: <20060812141415.30842.78695.sendpatchset@lappy> (raw)
Hi,
here the latest effort, it includes a whole new trivial allocator with a
horrid name and an almost full rewrite of the deadlock prevention core.
This version does not do anything per device and hence does not depend
on the new netdev_alloc_skb() API.
The reason to add a second allocator to the receive side is twofold:
1) it allows easy detection of the memory pressure / OOM situation;
2) it allows the receive path to be unbounded and go at full speed when
resources permit.
The choice of using the global memalloc reserve as a mempool makes that
the new allocator has to release pages as soon as possible; if we were
to hoard pages in the allocator the memalloc reserve would not get
replenished readily.
Peter
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next reply other threads:[~2006-08-12 14:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-12 14:14 Peter Zijlstra [this message]
2006-08-12 14:14 ` [RFC][PATCH 1/4] pfn_to_kaddr() for UML Peter Zijlstra
2006-08-12 14:14 ` [RFC][PATCH 2/4] SROG allocator Peter Zijlstra
2006-08-12 14:14 ` [RFC][PATCH 3/4] deadlock prevention core Peter Zijlstra
2006-08-12 14:41 ` Jeff Garzik
2006-08-12 15:06 ` rename *MEMALLOC flags (was: Re: [RFC][PATCH 3/4] deadlock prevention core) Peter Zijlstra
2006-08-12 15:28 ` Indan Zupancic
2006-08-12 15:34 ` Peter Zijlstra
2006-08-14 0:06 ` rename *MEMALLOC flags Daniel Phillips
2006-08-14 1:00 ` Paul Jackson
2006-08-14 3:42 ` Nick Piggin
2006-08-12 17:31 ` [RFC][PATCH 3/4] deadlock prevention core Indan Zupancic
2006-08-12 17:44 ` Peter Zijlstra
2006-08-12 17:54 ` Indan Zupancic
2006-08-12 18:08 ` Peter Zijlstra
2006-08-12 18:32 ` Indan Zupancic
2006-08-12 18:47 ` Peter Zijlstra
2006-08-12 19:45 ` Indan Zupancic
2006-08-12 14:14 ` [RFC][PATCH 4/4] deadlock prevention for NBD Peter Zijlstra
2006-08-24 14:43 ` Pavel Machek
2006-08-12 16:51 ` [RFC][PATCH 0/4] VM deadlock prevention -v4 Indan Zupancic
2006-08-12 17:33 ` Peter Zijlstra
2006-08-12 18:16 ` Indan Zupancic
2006-08-12 18:54 ` Peter Zijlstra
2006-08-12 20:05 ` Indan Zupancic
2006-08-14 0:42 ` Daniel Phillips
2006-08-14 5:20 ` Evgeniy Polyakov
2006-08-14 12:21 ` Rik van Riel
2006-08-14 12:51 ` Herbert Xu
2006-08-14 14:22 ` Rik van Riel
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