From: Artem Bityutskiy <dedekind1@gmail.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 01/16] writeback: do not self-wakeup
Date: Sun, 18 Jul 2010 12:43:09 +0300 [thread overview]
Message-ID: <1279446189.16247.49.camel@localhost.localdomain> (raw)
In-Reply-To: <20100718064435.GA23811@infradead.org>
On Sun, 2010-07-18 at 02:44 -0400, Christoph Hellwig wrote:
> On Fri, Jul 16, 2010 at 03:44:57PM +0300, Artem Bityutskiy wrote:
> > From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
> >
> > The bdi forker thread wakes up itself via 'bdi_add_to_pending()'.
> > And the thread is the only user of 'bdi_add_to_pending()'. Thus,
> > we can safely zap the unneeded 'wake_up_process()' call.
>
> At least right now it's called using call_rcu, which offloads the function
> to a RCU thread of some sorts.
Christoph, thanks for your review. I'll amend my series and re-send. And
I also have to think about some of your suggestions.
I did not CC you to spam your mailbox less, since I'm sure you would not
miss the series in the fsdevel ML. But if you prefer being CCed, let me
know.
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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next prev parent reply other threads:[~2010-07-18 9:43 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-16 12:44 [RFC][PATCH 00/16] kill unnecessary bdi wakeups + cleanups Artem Bityutskiy
2010-07-16 12:44 ` [RFC][PATCH 01/16] writeback: do not self-wakeup Artem Bityutskiy
2010-07-18 6:44 ` Christoph Hellwig
2010-07-18 9:43 ` Artem Bityutskiy [this message]
2010-07-16 12:44 ` [RFC][PATCH 02/16] writeback: remove redundant list initialization Artem Bityutskiy
2010-07-18 6:44 ` Christoph Hellwig
2010-07-16 12:44 ` [RFC][PATCH 03/16] writeback: harmonize writeback threads naming Artem Bityutskiy
2010-07-18 6:45 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 04/16] writeback: fix possible race when shutting down bdi Artem Bityutskiy
2010-07-18 6:47 ` Christoph Hellwig
2010-07-20 8:58 ` Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 05/16] writeback: fix possible race when creating bdi threads Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 06/16] writeback: improve bdi_has_dirty_io Artem Bityutskiy
2010-07-18 6:49 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 07/16] writeback: do not lose wake-ups in the forker thread Artem Bityutskiy
2010-07-18 6:49 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 08/16] writeback: do not lose default bdi wake-ups Artem Bityutskiy
2010-07-18 6:52 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 09/16] writeback: do not lose wake-ups in bdi threads Artem Bityutskiy
2010-07-18 6:52 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 10/16] writeback: simplify bdi code a little Artem Bityutskiy
2010-07-18 6:56 ` Christoph Hellwig
2010-07-20 10:34 ` Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 11/16] writeback: move last_active to bdi Artem Bityutskiy
2010-07-18 7:03 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 12/16] writeback: add to bdi_list in the forker thread Artem Bityutskiy
2010-07-18 6:58 ` Christoph Hellwig
2010-07-20 11:07 ` Artem Bityutskiy
2010-07-20 11:32 ` Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 13/16] writeback: restructure bdi forker loop a little Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 14/16] writeback: move bdi threads exiting logic to the forker thread Artem Bityutskiy
2010-07-18 7:02 ` Christoph Hellwig
2010-07-20 12:23 ` Artem Bityutskiy
2010-07-20 12:54 ` Artem Bityutskiy
2010-07-16 12:45 ` [RFC][PATCH 15/16] writeback: clean-up the warning about non-registered bdi Artem Bityutskiy
2010-07-18 7:03 ` Christoph Hellwig
2010-07-16 12:45 ` [RFC][PATCH 16/16] writeback: prevent unnecessary bdi threads wakeups Artem Bityutskiy
2010-07-18 7:45 ` Christoph Hellwig
2010-07-20 13:13 ` Artem Bityutskiy
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