From: Peter Zijlstra <peterz@infradead.org>
To: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
tytso@mit.edu, chris.mason@oracle.com, david@fromorbit.com,
hch@infradead.org, akpm@linux-foundation.org, jack@suse.cz,
yanmin_zhang@linux.intel.com, richard@rsk.demon.co.uk,
damien.wyart@free.fr
Subject: Re: [PATCH 0/11] Per-bdi writeback flusher threads v9
Date: Thu, 28 May 2009 22:35:08 +0200 [thread overview]
Message-ID: <1243542908.6645.104.camel@laptop> (raw)
In-Reply-To: <4A1E9D8B.8020908@gmail.com>
On Thu, 2009-05-28 at 17:19 +0300, Artem Bityutskiy wrote:
> Artem Bityutskiy wrote:
> > question is - should it? 'bdi_register()' a block device,
> > but we do not have one.
>
> Sorry, wanted to say: 'bdi_register()' registers a block
> device.
BDI stands for backing device info and is not related to block devices
other than that block devices can also be (ok, always are) backing
devices.
If you want to do writeback, you need a backing device to write to. The
BDI is the device abstraction for writeback.
next prev parent reply other threads:[~2009-05-28 20:35 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-28 11:46 [PATCH 0/11] Per-bdi writeback flusher threads v9 Jens Axboe
2009-05-28 11:46 ` [PATCH 01/11] ntfs: remove old debug check for dirty data in ntfs_put_super() Jens Axboe
2009-05-28 11:46 ` [PATCH 02/11] btrfs: properly register fs backing device Jens Axboe
2009-05-28 11:46 ` [PATCH 03/11] writeback: move dirty inodes from super_block to backing_dev_info Jens Axboe
2009-05-28 11:46 ` [PATCH 04/11] writeback: switch to per-bdi threads for flushing data Jens Axboe
2009-05-28 14:13 ` Artem Bityutskiy
2009-05-28 22:28 ` Jens Axboe
2009-05-28 11:46 ` [PATCH 05/11] writeback: get rid of pdflush completely Jens Axboe
2009-05-28 11:46 ` [PATCH 06/11] writeback: separate the flushing state/task from the bdi Jens Axboe
2009-05-28 11:46 ` [PATCH 07/11] writeback: support > 1 flusher thread per bdi Jens Axboe
2009-05-28 11:46 ` [PATCH 08/11] writeback: allow sleepy exit of default writeback task Jens Axboe
2009-05-28 11:46 ` [PATCH 09/11] writeback: add some debug inode list counters to bdi stats Jens Axboe
2009-05-28 11:46 ` [PATCH 10/11] writeback: add name to backing_dev_info Jens Axboe
2009-05-28 11:46 ` [PATCH 11/11] writeback: check for registered bdi in flusher add and inode dirty Jens Axboe
2009-05-28 13:56 ` [PATCH 0/11] Per-bdi writeback flusher threads v9 Peter Zijlstra
2009-05-28 22:28 ` Jens Axboe
2009-05-28 14:17 ` Artem Bityutskiy
2009-05-28 14:19 ` Artem Bityutskiy
2009-05-28 20:35 ` Peter Zijlstra [this message]
2009-05-28 22:27 ` Jens Axboe
2009-05-29 15:37 ` Artem Bityutskiy
2009-05-29 15:50 ` Jens Axboe
2009-05-29 16:02 ` Artem Bityutskiy
2009-05-29 17:07 ` Jens Axboe
2009-06-03 7:39 ` Artem Bityutskiy
2009-06-03 7:44 ` Jens Axboe
2009-06-03 7:46 ` Artem Bityutskiy
2009-06-03 7:50 ` Jens Axboe
2009-06-03 7:54 ` Artem Bityutskiy
2009-06-03 7:59 ` Artem Bityutskiy
2009-06-03 8:07 ` Jens Axboe
2009-05-28 14:41 ` Theodore Tso
2009-05-29 16:07 ` Artem Bityutskiy
2009-05-29 16:20 ` Artem Bityutskiy
2009-05-29 17:09 ` Jens Axboe
2009-06-03 8:11 ` Artem Bityutskiy
2009-05-29 17:08 ` Jens Axboe
2009-06-03 11:12 ` Artem Bityutskiy
2009-06-03 11:42 ` Jens Axboe
2009-06-04 15:20 ` Frederic Weisbecker
2009-06-04 19:07 ` Andrew Morton
2009-06-04 19:13 ` Frederic Weisbecker
2009-06-04 19:50 ` Jens Axboe
2009-06-04 20:10 ` Jens Axboe
2009-06-04 22:34 ` Frederic Weisbecker
2009-06-05 19:15 ` Jens Axboe
2009-06-05 21:14 ` Jan Kara
2009-06-06 0:18 ` Chris Mason
2009-06-06 0:23 ` Jan Kara
2009-06-06 1:06 ` Frederic Weisbecker
2009-06-08 9:23 ` Jens Axboe
2009-06-08 12:23 ` Jan Kara
2009-06-08 12:28 ` Jens Axboe
2009-06-08 13:01 ` Jan Kara
2009-06-09 18:39 ` Frederic Weisbecker
2009-06-06 1:00 ` Frederic Weisbecker
2009-06-06 0:35 ` Frederic Weisbecker
2009-06-04 21:37 ` Frederic Weisbecker
2009-06-05 1:14 ` Zhang, Yanmin
2009-06-05 19:16 ` Jens Axboe
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