From: Andrew Morton <akpm@osdl.org>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: pbadari@us.ibm.com, linux-fsdevel@vger.kernel.org,
ext2-devel@lists.sourceforge.net
Subject: Re: Bufferheads & page-cache reference
Date: Mon, 14 Feb 2005 14:31:42 -0800 [thread overview]
Message-ID: <20050214143142.6c12fdb3.akpm@osdl.org> (raw)
In-Reply-To: <20050214221044.GX13009@holomorphy.com>
William Lee Irwin III <wli@holomorphy.com> wrote:
>
> On Mon, Feb 14, 2005 at 01:40:58PM -0800, Andrew Morton wrote:
> > Seems about right. There's also the buffer_heads_over_limit logic in
> > mm/vmscan.c and fs/buffer.c. That logic has a hole in that it requires
> > that there be a highmem shortage before we start to reclaim the lowmem
> > buffer_heads, but it is somewhat helpful.
>
> It would be beneficial to close the hole in that logic.
Really? Who's hurting?
> Do you have any
> particularly preferred methods in mind?
>
None that are particularly elegant. One approach might be to trigger a
highmem zone scan when we hit the limit, and to somehow tell that scan to
only do buffer_head stripping.
next prev parent reply other threads:[~2005-02-14 22:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-14 19:30 Bufferheads & page-cache reference Badari Pulavarty
2005-02-14 19:31 ` [Ext2-devel] " Sonny Rao
2005-02-14 21:40 ` Andrew Morton
2005-02-14 22:10 ` William Lee Irwin III
2005-02-14 22:31 ` Andrew Morton [this message]
2005-02-14 22:50 ` William Lee Irwin III
2005-02-15 0:22 ` Badari Pulavarty
2005-02-15 2:57 ` Andrew Morton
2005-02-15 16:03 ` Badari Pulavarty
2005-02-15 17:26 ` Andrew Morton
2005-02-15 1:27 ` Badari Pulavarty
2005-02-15 3:05 ` Andrew Morton
2005-02-15 16:46 ` Badari Pulavarty
2005-02-15 17:54 ` Andrew Morton
2005-02-15 18:15 ` Badari Pulavarty
2005-02-15 19:07 ` Nikita Danilov
2005-02-15 19:39 ` Badari Pulavarty
2005-02-15 20:00 ` Andrew Morton
2005-02-16 0:02 ` [RFC] [PATCH] Generic mpage_writepage() support Badari Pulavarty
2005-02-16 11:41 ` Nikita Danilov
2005-02-16 18:37 ` Badari Pulavarty
2005-02-16 19:09 ` Dave Kleikamp
2005-02-16 19:28 ` Badari Pulavarty
2005-02-16 19:43 ` Dave Kleikamp
2005-02-16 21:38 ` [Ext2-devel] " Badari Pulavarty
2005-02-16 21:46 ` Dave Kleikamp
2005-02-17 0:13 ` [RFC] [PATCH] nobh_write_page() support Badari Pulavarty
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