From: Christoph Hellwig <hch@infradead.org>
To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jan Kara <jack@suse.cz>, Mel Gorman <mel@linux.vnet.ibm.com>,
Mel Gorman <mel@csn.ul.ie>, Dave Chinner <david@fromorbit.com>,
Itaru Kitayama <kitayama@cl.bb4u.ne.jp>,
Minchan Kim <minchan.kim@gmail.com>,
Linux Memory Management List <linux-mm@kvack.org>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/6] writeback: introduce writeback_control.inodes_cleaned
Date: Wed, 4 May 2011 07:16:47 -0400 [thread overview]
Message-ID: <20110504111647.GA19261@infradead.org> (raw)
In-Reply-To: <20110504111130.GA5191@localhost>
On Wed, May 04, 2011 at 07:11:30PM +0800, Wu Fengguang wrote:
> On Wed, May 04, 2011 at 07:05:00PM +0800, Christoph Hellwig wrote:
> > Same here - this has nothing to do with actual page writeback and really
> > should stay internal to fs/fs-writeback.c
>
> OK, I'll check how to constrain writeback_control to the minimal scope.
The basic idea would be to pass the struct wb_writeback_work all the
way down to writeback_sb_inodes, and initialize the struct writeback_control
there. This requires adding a few more fields like more_io and
older_than_this to struct wb_writeback_work, and redoing a lot of the
tracing, but it immediately clean things up, e.g. suddently
wbc.nr_to_write vs work->nr_pages starts to make sense, and instead
of saving and restoring pages_skipped in writeback_sb_inodes it can
always start with a clean zero value.
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next prev parent reply other threads:[~2011-05-04 11:16 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 8:03 [PATCH 0/6] writeback: moving expire targets for background/kupdate works v2 Wu Fengguang
2011-04-20 8:03 ` [PATCH 1/6] writeback: pass writeback_control down to move_expired_inodes() Wu Fengguang
2011-05-04 11:04 ` Christoph Hellwig
2011-05-04 11:13 ` Wu Fengguang
2011-04-20 8:03 ` [PATCH 2/6] writeback: introduce writeback_control.inodes_cleaned Wu Fengguang
2011-05-04 11:05 ` Christoph Hellwig
2011-05-04 11:11 ` Wu Fengguang
2011-05-04 11:16 ` Christoph Hellwig [this message]
2011-05-04 11:32 ` Wu Fengguang
2011-04-20 8:03 ` [PATCH 3/6] writeback: try more writeback as long as something was written Wu Fengguang
2011-04-20 8:03 ` [PATCH 4/6] writeback: the kupdate expire timestamp should be a moving target Wu Fengguang
2011-04-20 8:03 ` [PATCH 5/6] writeback: sync expired inodes first in background writeback Wu Fengguang
2011-04-20 23:40 ` Andrew Morton
2011-04-21 1:14 ` Wu Fengguang
2011-04-21 1:21 ` Wu Fengguang
2011-04-24 3:15 ` Wu Fengguang
2011-04-26 12:17 ` Jan Kara
2011-04-26 13:51 ` Wu Fengguang
2011-04-26 13:59 ` Wu Fengguang
2011-04-26 14:05 ` Wu Fengguang
2011-04-27 11:15 ` Wu Fengguang
2011-04-20 8:03 ` [PATCH 6/6] writeback: refill b_io iff empty Wu Fengguang
2011-05-04 7:39 ` Wu Fengguang
2011-05-05 16:37 ` Jan Kara
2011-05-05 16:47 ` Wu Fengguang
2011-05-06 5:29 ` Wu Fengguang
2011-05-06 8:42 ` [RFC][PATCH] writeback: limit number of moved inodes in queue_io() Wu Fengguang
2011-05-06 10:06 ` [RFC][PATCH v2] " Wu Fengguang
2011-05-06 23:06 ` Dave Chinner
2011-05-06 14:21 ` [PATCH 6/6] writeback: refill b_io iff empty Jan Kara
2011-05-10 4:31 ` Wu Fengguang
2011-05-10 4:53 ` Dave Chinner
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