From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Mel Gorman <mgorman@suse.de>, Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>, XFS <xfs@oss.sgi.com>,
Christoph Hellwig <hch@infradead.org>,
Johannes Weiner <jweiner@redhat.com>,
Wu Fengguang <fengguang.wu@intel.com>, Jan Kara <jack@suse.cz>,
Rik van Riel <riel@redhat.com>,
Minchan Kim <minchan.kim@gmail.com>
Subject: Re: [RFC PATCH 0/5] Reduce filesystem writeback from page reclaim (again)
Date: Thu, 14 Jul 2011 00:51:23 -0400 [thread overview]
Message-ID: <20110714045123.GB3203@infradead.org> (raw)
In-Reply-To: <20110714003340.GZ23038@dastard>
On Thu, Jul 14, 2011 at 10:33:40AM +1000, Dave Chinner wrote:
> patchset. After all, that's what I keep asking for (so we can get
> rid of .writepage altogether), and if the numbers don't add up, then
> I'll shut up about it. ;)
Unfortunately there's a few more users of ->writepage in addition to
memory reclaim. The most visible on is page migration, but there's also
a write_one_page helper used by a few filesystems that would either
need to get a writepage-like callback or a bigger rewrite.
I agree that killing of ->writepage would be a worthwhile goal, though.
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next prev parent reply other threads:[~2011-07-14 4:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-13 14:31 [RFC PATCH 0/5] Reduce filesystem writeback from page reclaim (again) Mel Gorman
2011-07-13 14:31 ` [PATCH 1/5] mm: vmscan: Do not writeback filesystem pages in direct reclaim Mel Gorman
2011-07-13 23:34 ` Dave Chinner
2011-07-14 6:17 ` Mel Gorman
2011-07-14 1:38 ` KAMEZAWA Hiroyuki
2011-07-14 4:46 ` Christoph Hellwig
2011-07-14 4:46 ` KAMEZAWA Hiroyuki
2011-07-14 15:07 ` Christoph Hellwig
2011-07-14 23:55 ` KAMEZAWA Hiroyuki
2011-07-15 2:22 ` Dave Chinner
2011-07-18 2:22 ` Dave Chinner
2011-07-18 3:06 ` Dave Chinner
2011-07-14 6:19 ` Mel Gorman
2011-07-14 6:17 ` KAMEZAWA Hiroyuki
2011-07-13 14:31 ` [PATCH 2/5] mm: vmscan: Do not writeback filesystem pages in kswapd except in high priority Mel Gorman
2011-07-13 23:37 ` Dave Chinner
2011-07-14 6:29 ` Mel Gorman
2011-07-14 11:52 ` Dave Chinner
2011-07-14 13:17 ` Mel Gorman
2011-07-15 3:12 ` Dave Chinner
2011-07-13 14:31 ` [PATCH 3/5] mm: vmscan: Throttle reclaim if encountering too many dirty pages under writeback Mel Gorman
2011-07-13 23:41 ` Dave Chinner
2011-07-14 6:33 ` Mel Gorman
2011-07-13 14:31 ` [PATCH 4/5] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes Mel Gorman
2011-07-13 16:40 ` Johannes Weiner
2011-07-13 17:15 ` Mel Gorman
2011-07-13 14:31 ` [PATCH 5/5] mm: writeback: Prioritise dirty inodes encountered by direct reclaim for background flushing Mel Gorman
2011-07-13 21:39 ` Jan Kara
2011-07-14 0:09 ` Dave Chinner
2011-07-14 7:03 ` Mel Gorman
2011-07-13 23:56 ` Dave Chinner
2011-07-14 7:30 ` Mel Gorman
2011-07-14 15:09 ` Christoph Hellwig
2011-07-14 15:49 ` Mel Gorman
2011-07-13 15:31 ` [RFC PATCH 0/5] Reduce filesystem writeback from page reclaim (again) Mel Gorman
2011-07-14 0:33 ` Dave Chinner
2011-07-14 4:51 ` Christoph Hellwig [this message]
2011-07-14 7:37 ` Mel Gorman
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