From: Rik van Riel <riel@redhat.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Dave Chinner <david@fromorbit.com>, Jan Kara <jack@suse.cz>,
Mel Gorman <mel@csn.ul.ie>, Christoph Hellwig <hch@infradead.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 06/17] writeback: sync expired inodes first in background writeback
Date: Fri, 06 May 2011 15:02:27 -0400 [thread overview]
Message-ID: <4DC445C3.2050102@redhat.com> (raw)
In-Reply-To: <20110506031612.539339712@intel.com>
On 05/05/2011 11:08 PM, Wu Fengguang wrote:
> A background flush work may run for ever. So it's reasonable for it to
> mimic the kupdate behavior of syncing old/expired inodes first.
>
> At each queue_io() time, first try enqueuing only newly expired inodes.
> If there are zero expired inodes to work with, then relax the rule and
> enqueue all dirty inodes.
>
> CC: Dave Chinner<david@fromorbit.com>
> CC: Jan Kara<jack@suse.cz>
> CC: Rik van Riel<riel@redhat.com>
> Acked-by: Mel Gorman<mel@csn.ul.ie>
> Signed-off-by: Wu Fengguang<fengguang.wu@intel.com>
Acked-by: Rik van Riel<riel@redhat.com>
--
All rights reversed
next prev parent reply other threads:[~2011-05-06 19:02 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-06 3:08 [PATCH 00/17] writeback fixes and cleanups for 2.6.40 Wu Fengguang
2011-05-06 3:08 ` [PATCH 01/17] writeback: introduce wbc.tagged_sync for the WB_SYNC_NONE sync stage Wu Fengguang
2011-05-06 16:08 ` Jan Kara
2011-05-06 3:08 ` [PATCH 02/17] writeback: update dirtied_when for synced inode to prevent livelock Wu Fengguang
2011-05-06 16:33 ` Jan Kara
2011-05-10 2:14 ` Wu Fengguang
2011-05-10 12:05 ` Jan Kara
2011-05-06 3:08 ` [PATCH 03/17] writeback: introduce writeback_control.inodes_cleaned Wu Fengguang
2011-05-06 14:36 ` Jan Kara
2011-05-10 2:23 ` Wu Fengguang
2011-05-10 13:52 ` Jan Kara
2011-05-10 15:00 ` Wu Fengguang
2011-05-06 3:08 ` [PATCH 04/17] writeback: try more writeback as long as something was written Wu Fengguang
2011-05-09 16:05 ` Jan Kara
2011-05-10 2:40 ` Wu Fengguang
2011-05-06 3:08 ` [PATCH 05/17] writeback: the kupdate expire timestamp should be a moving target Wu Fengguang
2011-05-06 3:08 ` [PATCH 06/17] writeback: sync expired inodes first in background writeback Wu Fengguang
2011-05-06 19:02 ` Rik van Riel [this message]
2011-05-09 16:08 ` Jan Kara
2011-05-09 16:18 ` Rik van Riel
2011-05-10 2:45 ` Wu Fengguang
2011-05-06 3:08 ` [PATCH 07/17] writeback: refill b_io iff empty Wu Fengguang
2011-05-06 3:08 ` [PATCH 08/17] writeback: split inode_wb_list_lock into bdi_writeback.list_lock Wu Fengguang
2011-05-06 3:08 ` [PATCH 09/17] writeback: elevate queue_io() into wb_writeback() Wu Fengguang
2011-05-09 16:15 ` Jan Kara
2011-05-06 3:08 ` [PATCH 10/17] writeback: avoid extra sync work at enqueue time Wu Fengguang
2011-05-09 16:16 ` Jan Kara
2011-05-06 3:08 ` [PATCH 11/17] writeback: add bdi_dirty_limit() kernel-doc Wu Fengguang
2011-05-06 3:08 ` [PATCH 12/17] writeback: skip balance_dirty_pages() for in-memory fs Wu Fengguang
2011-05-06 3:08 ` [PATCH 13/17] writeback: remove writeback_control.more_io Wu Fengguang
2011-05-06 3:08 ` [PATCH 14/17] writeback: make writeback_control.nr_to_write straight Wu Fengguang
2011-05-09 16:54 ` Jan Kara
2011-05-10 3:19 ` Wu Fengguang
2011-05-10 13:44 ` Jan Kara
2011-05-11 14:38 ` Wu Fengguang
2011-05-11 14:54 ` Jan Kara
2011-05-06 3:08 ` [PATCH 15/17] writeback: remove .nonblocking and .encountered_congestion Wu Fengguang
2011-05-06 3:08 ` [PATCH 16/17] writeback: trace event writeback_single_inode Wu Fengguang
2011-05-06 4:16 ` [PATCH 16/17] writeback: trace event writeback_single_inode (v2) Wu Fengguang
2011-05-06 3:08 ` [PATCH 17/17] writeback: trace event writeback_queue_io Wu Fengguang
2011-05-06 4:06 ` [PATCH 00/17] writeback fixes and cleanups for 2.6.40 Anca Emanuel
2011-05-06 4:09 ` Wu Fengguang
-- strict thread matches above, loose matches on Subject: below --
2011-05-12 13:57 [PATCH 00/17] writeback fixes and cleanups for 2.6.40 (v2) Wu Fengguang
2011-05-12 13:57 ` [PATCH 06/17] writeback: sync expired inodes first in background writeback Wu Fengguang
2011-05-12 22:55 ` Dave Chinner
2011-05-16 13:00 ` Wu Fengguang
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