From: Rik van Riel <riel@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-mm@kvack.org, Trond Myklebust <Trond.Myklebust@netapp.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC][PATCH] mm: balance_dirty_pages() vs throttle_vm_writeout() deadlock
Date: Tue, 20 Feb 2007 15:00:37 -0500 [thread overview]
Message-ID: <45DB5365.2090207@redhat.com> (raw)
In-Reply-To: <1171986565.23046.5.camel@twins>
Peter Zijlstra wrote:
> However unstable pages don't go away automagickally, they need a push. While
> balance_dirty_pages() does this push, throttle_vm_writeout() doesn't. So we can
> sit here ad infintum.
That would certainly explain the bad interactive behaviour when
doing heavy NFS writeouts!
> Hence I propose to remove the NR_UNSTABLE_NFS count from throttle_vm_writeout().
As long as something else ensures that the unstable pages still
get taken care of like they should, I guess...
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next prev parent reply other threads:[~2007-02-20 20:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-20 15:49 [RFC][PATCH] mm: balance_dirty_pages() vs throttle_vm_writeout() deadlock Peter Zijlstra
2007-02-20 20:00 ` Rik van Riel [this message]
2007-02-22 0:07 ` Andrew Morton
2007-02-26 13:43 ` Peter Zijlstra
2007-02-26 14:10 ` Peter Zijlstra
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