From: Minchan Kim <minchan.kim@gmail.com>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jan Kara <jack@suse.cz>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Mel Gorman <mel@csn.ul.ie>, Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Dave Chinner <david@fromorbit.com>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH 1/2 v2] writeback: integrated background writeback work
Date: Tue, 2 Nov 2010 10:55:25 +0900 [thread overview]
Message-ID: <AANLkTi=iLAJmUozo1hkuGZbNYXi08fjQemLEg8_nw91O@mail.gmail.com> (raw)
In-Reply-To: <20101101203947.GB7309@localhost>
On Tue, Nov 2, 2010 at 5:39 AM, Wu Fengguang <fengguang.wu@intel.com> wrote:
> From: Jan Kara <jack@suse.cz>
>
> Check whether background writeback is needed after finishing each work.
>
> When bdi flusher thread finishes doing some work check whether any kind
> of background writeback needs to be done (either because
> dirty_background_ratio is exceeded or because we need to start flushing
> old inodes). If so, just do background write back.
>
> This way, bdi_start_background_writeback() just needs to wake up the
> flusher thread. It will do background writeback as soon as there is no
> other work.
>
> This is a preparatory patch for the next patch which stops background
> writeback as soon as there is other work to do.
>
> Signed-off-by: Jan Kara <jack@suse.cz>
> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
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next prev parent reply other threads:[~2010-11-02 1:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-13 12:31 [PATCH 0/4] [RFC] transfer vmscan pageout works to the flusher thread Wu Fengguang
2010-09-13 12:31 ` [PATCH 1/4] writeback: integrated background work Wu Fengguang
2010-09-13 22:46 ` Minchan Kim
2010-09-14 0:53 ` Wu Fengguang
2010-09-14 12:45 ` Jan Kara
2010-09-13 12:31 ` [PATCH 2/4] writeback: quit background/periodic work when other works are enqueued Wu Fengguang
2010-09-14 12:40 ` Jan Kara
2010-11-01 12:07 ` Wu Fengguang
2010-11-01 15:08 ` Jan Kara
2010-11-01 15:13 ` Jan Kara
2010-11-01 12:14 ` [PATCH 1/2] writeback: integrated background writeback work Wu Fengguang
2010-11-01 12:22 ` [PATCH 2/2] writeback: stop background/kupdate works from livelocking other works Wu Fengguang
2010-11-01 15:22 ` Christoph Hellwig
2010-11-02 1:57 ` Minchan Kim
2010-11-05 12:15 ` Johannes Weiner
2010-11-01 15:21 ` [PATCH 1/2] writeback: integrated background writeback work Christoph Hellwig
2010-11-01 20:37 ` Wu Fengguang
2010-11-01 20:39 ` [PATCH 1/2 v2] " Wu Fengguang
2010-11-02 1:55 ` Minchan Kim [this message]
2010-11-05 12:01 ` Johannes Weiner
2010-09-13 12:31 ` [PATCH 3/4] writeback: introduce bdi_start_inode_writeback() Wu Fengguang
2010-09-14 13:36 ` Jan Kara
2010-11-01 12:35 ` Wu Fengguang
2010-09-13 12:31 ` [PATCH 4/4] vmscan: transfer async file writeback to the flusher Wu Fengguang
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