From: Tejun Heo <tj@kernel.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>,
axboe@kernel.dk, laijs@cn.fujitsu.com, fengguang.wu@intel.com,
linux-kernel@vger.kernel.org, jmoyer@redhat.com
Subject: Re: [PATCH 3/4] writeback: replace custom worker pool implementation with unbound workqueue
Date: Wed, 20 Mar 2013 22:07:18 -0700 [thread overview]
Message-ID: <20130321050718.GA8012@mtj.dyndns.org> (raw)
In-Reply-To: <20130321015721.GL17758@dastard>
Hello, Dave.
On Thu, Mar 21, 2013 at 12:57:21PM +1100, Dave Chinner wrote:
> When you have a system that has 50+ active filesystems (pretty
> common in the distributed storage environments were every disk has
> it's own filesystem), knowing which filesystem(s) are getting stuck
> in writeback from the sysrq-w or hangcheck output is pretty damn
> important....
Hmm... I guess, then, what we can do is adding a worker description
which is printed out with task dump. ie. A work function can call
work_set_desc(fmt, arg....). It won't be expensive and can be
implemented relatively easily. Does that sound good enough?
Thanks.
--
tejun
next prev parent reply other threads:[~2013-03-21 5:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-07 21:44 [PATCHSET] writeback: convert writeback to unbound workqueue Tejun Heo
2013-03-07 21:44 ` [PATCH 1/4] implement current_is_workqueue_rescuer() Tejun Heo
2013-03-13 0:42 ` Tejun Heo
2013-03-07 21:44 ` [PATCH 2/4] writeback: remove unused bdi_pending_list Tejun Heo
2013-03-12 12:02 ` Jan Kara
2013-03-07 21:44 ` [PATCH 3/4] writeback: replace custom worker pool implementation with unbound workqueue Tejun Heo
2013-03-12 15:05 ` Jan Kara
2013-03-18 22:32 ` Jan Kara
2013-03-18 22:35 ` Tejun Heo
2013-03-19 15:46 ` Jan Kara
2013-03-19 17:28 ` Tejun Heo
2013-03-21 1:57 ` Dave Chinner
2013-03-21 5:07 ` Tejun Heo [this message]
2013-03-21 11:32 ` Jan Kara
2013-03-21 13:08 ` Christoph Hellwig
2013-03-21 18:37 ` Tejun Heo
2013-03-07 21:44 ` [PATCH 4/4] writeback: expose the bdi_wq workqueue Tejun Heo
2013-03-12 15:06 ` [PATCHSET] writeback: convert writeback to unbound workqueue Jens Axboe
2013-03-12 17:10 ` Tejun Heo
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