From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Christoph Lameter <clameter@sgi.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, Indan Zupancic <indan@nul.nu>,
Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
Daniel Phillips <phillips@google.com>,
Rik van Riel <riel@redhat.com>,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH 0/4] VM deadlock prevention -v5
Date: Fri, 25 Aug 2006 17:52:04 +0200 [thread overview]
Message-ID: <1156521124.23000.1.camel@twins> (raw)
In-Reply-To: <Pine.LNX.4.64.0608250849480.9083@schroedinger.engr.sgi.com>
On Fri, 2006-08-25 at 08:51 -0700, Christoph Lameter wrote:
> On Fri, 25 Aug 2006, Peter Zijlstra wrote:
>
> > The basic premises is that network sockets serving the VM need undisturbed
> > functionality in the face of severe memory shortage.
> >
> > This patch-set provides the framework to provide this.
>
> Hmmm.. Is it not possible to avoid the memory pools by
> guaranteeing that a certain number of page is easily reclaimable?
We're not actually using mempools, but the memalloc reserve. Purely easy
reclaimable memory is not enough however, since packet receive happens
from IRQ context, and we cannot unmap pages in IRQ context.
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next prev parent reply other threads:[~2006-08-25 15:52 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-25 15:39 Peter Zijlstra
2006-08-25 15:39 ` [PATCH 1/4] net: VM deadlock avoidance framework Peter Zijlstra
2006-08-26 2:37 ` Indan Zupancic
2006-08-28 10:22 ` Peter Zijlstra
2006-08-28 16:03 ` Indan Zupancic
2006-08-28 17:32 ` Peter Zijlstra
2006-08-29 0:01 ` Indan Zupancic
2006-08-29 9:49 ` Peter Zijlstra
2006-08-29 19:53 ` Indan Zupancic
2006-08-25 15:40 ` [PATCH 2/4] blkdev: iosched selection for queue creation Peter Zijlstra
2006-08-25 15:40 ` [PATCH 3/4] nbd: deadlock prevention for NBD Peter Zijlstra
2006-08-25 15:40 ` [PATCH 4/4] nfs: deadlock prevention for NFS Peter Zijlstra
2006-08-25 20:14 ` Trond Myklebust
2006-08-25 20:36 ` Peter Zijlstra
2006-08-26 3:05 ` Indan Zupancic
2006-08-25 15:51 ` [PATCH 0/4] VM deadlock prevention -v5 Christoph Lameter
2006-08-25 15:52 ` Peter Zijlstra [this message]
2006-08-25 16:04 ` Rik van Riel
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