From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Mel Gorman <mgorman@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Linux-MM <linux-mm@kvack.org>,
Linux-Netdev <netdev@vger.kernel.org>,
Linux-NFS <linux-nfs@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>,
Trond Myklebust <Trond.Myklebust@netapp.com>,
Neil Brown <neilb@suse.de>
Subject: Re: [PATCH 03/10] mm: Add support for a filesystem to control swap files
Date: Mon, 12 Sep 2011 14:06:43 +0200 [thread overview]
Message-ID: <1315829203.26517.30.camel@twins> (raw)
In-Reply-To: <20110912115605.GB3207@suse.de>
On Mon, 2011-09-12 at 12:56 +0100, Mel Gorman wrote:
> I took a look at what was involved with doing the block lookups in
> ext4. It's what led to patch 4 of this series because it was necessary that
> the filesystem get the same information as the generic handler. It got a
> bit messy but looked like it would have worked if I kept at it. I stopped
> because I did nt see a major advantage with swap_writepage() looking up
> the block map instead of having looked it up in advance with bmap() but
> I could have missed something.
IIRC the filesystem folks don't like the bmap thing and would like it to
go away.. could be they changed their minds again though, who knows ;-)
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next prev parent reply other threads:[~2011-09-12 12:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-09 11:00 [RFC PATCH 00/10] Swap-over-NFS without deadlocking v1 Mel Gorman
2011-09-09 11:00 ` [PATCH 01/10] netvm: Prevent a stream-specific deadlock Mel Gorman
2011-09-09 11:00 ` [PATCH 02/10] selinux: tag avc cache alloc as non-critical Mel Gorman
2011-09-09 11:00 ` [PATCH 03/10] mm: Add support for a filesystem to control swap files Mel Gorman
2011-09-09 13:00 ` Christoph Hellwig
2011-09-09 13:15 ` Mel Gorman
2011-09-09 13:36 ` Christoph Hellwig
2011-09-12 9:04 ` Peter Zijlstra
2011-09-12 9:34 ` Mel Gorman
2011-09-12 9:56 ` Peter Zijlstra
2011-09-12 11:56 ` Mel Gorman
2011-09-12 12:06 ` Peter Zijlstra [this message]
2011-09-09 11:00 ` [PATCH 04/10] mm: swap: Implement generic handlers for swap-related address ops Mel Gorman
2011-09-09 11:00 ` [PATCH 05/10] mm: Methods for teaching filesystems about PG_swapcache pages Mel Gorman
2011-09-09 11:00 ` [PATCH 06/10] nfs: teach the NFS client how to treat " Mel Gorman
2011-09-09 11:00 ` [PATCH 07/10] nfs: disable data cache revalidation for swapfiles Mel Gorman
2011-09-09 11:00 ` [PATCH 08/10] nfs: enable swap on NFS Mel Gorman
2011-09-09 11:00 ` [PATCH 09/10] nfs: Prevent page allocator recursions with swap over NFS Mel Gorman
2011-09-09 11:00 ` [PATCH 10/10] Avoid dereferencing bd_disk during swap_entry_free for network storage Mel Gorman
2011-09-09 13:02 ` Christoph Hellwig
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