From: Andrew Morton <akpm@zip.com.au>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Linus Torvalds <torvalds@transmeta.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [patch 9/21] batched addition of pages to the LRU
Date: Sun, 11 Aug 2002 22:51:19 -0700 [thread overview]
Message-ID: <3D574CD7.DF054D05@zip.com.au> (raw)
In-Reply-To: Pine.LNX.4.44L.0208120222420.23404-100000@imladris.surriel.com
Rik van Riel wrote:
>
> On Sun, 11 Aug 2002, Andrew Morton wrote:
>
> > And it only takes one dirty block! Any LRU page which is dirty
> > against a blocked queue is like a hand grenade floating
> > down a stream [1]. If some innocent task tries to write that
> > page it gets DoSed via the request queue.
>
> This is exactly why we shouldn't wait on dirty pages in
> the pageout path.
It's not the wait-on-writeback which is the problem. It's
the writeout. Perhaps that's what you meant.
prev parent reply other threads:[~2002-08-12 5:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-11 7:39 [patch 9/21] batched addition of pages to the LRU Andrew Morton
2002-08-11 15:23 ` Rik van Riel
2002-08-12 5:16 ` Andrew Morton
2002-08-12 5:24 ` Rik van Riel
2002-08-12 5:51 ` Andrew Morton [this message]
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