From: Tejun Heo <tj@kernel.org>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>,
agk@redhat.com, jaxboe@fusionio.com,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org,
linux-raid@vger.kernel.org, dm-devel@redhat.com, hch@lst.de,
konishi.ryusuke@lab.ntt.co.jp, James.Bottomley@suse.de,
tytso@mit.edu, chris.mason@oracle.com, swhiteho@redhat.com,
vst@vlnb.net, jack@suse.cz, rwheeler@redhat.com, hare@suse.de,
neilb@suse.de, rusty@rustcorp.com.au, mst@redhat.com,
k-ueda@ct.jp.nec.com
Subject: Re: [PATCH 23/41] dm: implement REQ_FLUSH/FUA support for bio-based dm
Date: Sat, 11 Sep 2010 01:36:21 +0200 [thread overview]
Message-ID: <4C8AC0F5.5080206@kernel.org> (raw)
In-Reply-To: <Pine.LNX.4.64.1009101554300.5286@hs20-bc2-1.build.redhat.com>
On 09/10/2010 10:06 PM, Mikulas Patocka wrote:
> But I have my work rules that I learned: I use no git kernels and no
> external patches (except Alasdair's patchset that I want to test). I only
> use -rc or final kernels. I need a stable computer --- I don't want to
> solve problems like "does it crash because I pulled something or does it
> crash because I made a bug in my code?" So, put that into 2.6.37-rc1 and
> I'll optimize flushes in dm for -rc2 or -rc3.
Alright, I'm sorry but this is as far as I would go for dm conversion
patches. If you wanna split it further or do it your way, please feel
free to. I think it would be beneficial to do things now but, hey,
you guys are maintaining dm part of the kernel, so it's up to you
guys. But, I think it would be silly for everyone else to wait for
the rather special requirement for dm, so if we have to go forward
without dm updates, I suppose we will have to. Jens, please feel free
to drop dm conversion patches.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-09-10 23:36 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 10:29 [PATCHSET #upstream] block, fs: replace HARDBARRIER with FLUSH/FUA, take#2 Tejun Heo
2010-09-03 10:29 ` [PATCH 01/41] ide: remove unnecessary blk_queue_flushing() test in do_ide_request() Tejun Heo
2010-09-03 10:29 ` [PATCH 02/41] block/loop: queue ordered mode should be DRAIN_FLUSH Tejun Heo
2010-09-12 8:38 ` Tao Ma
2010-09-12 11:41 ` Tejun Heo
2010-09-12 11:55 ` Tao Ma
2010-09-03 10:29 ` [PATCH 03/41] block: kill QUEUE_ORDERED_BY_TAG Tejun Heo
2010-09-03 10:29 ` [PATCH 04/41] block: deprecate barrier and replace blk_queue_ordered() with blk_queue_flush() Tejun Heo
2010-09-03 10:29 ` [PATCH 05/41] block: remove spurious uses of REQ_HARDBARRIER Tejun Heo
2010-09-03 10:29 ` [PATCH 06/41] block: misc cleanups in barrier code Tejun Heo
2010-09-03 10:29 ` [PATCH 07/41] block: drop barrier ordering by queue draining Tejun Heo
2010-09-03 10:29 ` [PATCH 08/41] block: rename blk-barrier.c to blk-flush.c Tejun Heo
2010-09-03 10:29 ` [PATCH 09/41] block: rename barrier/ordered to flush Tejun Heo
2010-09-03 10:29 ` [PATCH 10/41] block: implement REQ_FLUSH/FUA based interface for FLUSH/FUA requests Tejun Heo
2010-09-03 10:29 ` [PATCH 11/41] block: filter flush bio's in __generic_make_request() Tejun Heo
2010-09-03 10:29 ` [PATCH 12/41] block: simplify queue_next_fseq Tejun Heo
2010-09-03 10:29 ` [PATCH 13/41] block: initialize flush request with WRITE_FLUSH instead of REQ_FLUSH Tejun Heo
2010-09-03 10:29 ` [PATCH 14/41] block: kick queue after sequencing REQ_FLUSH/FUA Tejun Heo
2010-09-03 10:29 ` [PATCH 15/41] block: make sure FSEQ_DATA request has the same rq_disk as the original Tejun Heo
2010-09-03 10:29 ` [PATCH 16/41] block: update documentation for REQ_FLUSH / REQ_FUA Tejun Heo
2010-09-03 10:29 ` [PATCH 17/41] block: use REQ_FLUSH in blkdev_issue_flush() Tejun Heo
2010-09-03 10:29 ` [PATCH 18/41] block/loop: implement REQ_FLUSH/FUA support Tejun Heo
2010-09-03 10:29 ` [PATCH 19/41] virtio_blk: drop REQ_HARDBARRIER support Tejun Heo
2010-09-03 10:29 ` [PATCH 20/41] lguest: replace VIRTIO_F_BARRIER support with VIRTIO_F_FLUSH support Tejun Heo
2010-09-03 10:29 ` [PATCH 21/41] md: implment REQ_FLUSH/FUA support Tejun Heo
2010-09-03 10:29 ` [PATCH 22/41] block: make __blk_rq_prep_clone() copy most command flags Tejun Heo
2010-09-03 10:29 ` [PATCH 23/41] dm: implement REQ_FLUSH/FUA support for bio-based dm Tejun Heo
2010-09-03 12:36 ` Mike Snitzer
2010-09-06 11:14 ` [dm-devel] " Milan Broz
2010-09-07 21:17 ` Mike Snitzer
2010-09-07 22:15 ` Mike Snitzer
2010-09-07 23:49 ` [PATCH 42/41] dm: convey that all flushes are processed as empty Mike Snitzer
2010-09-08 0:00 ` Christoph Hellwig
2010-09-08 2:04 ` [PATCH 42/41 v2] " Mike Snitzer
2010-09-08 16:09 ` Tejun Heo
2010-09-08 16:09 ` Tejun Heo
2010-09-10 18:25 ` [PATCH 23/41] dm: implement REQ_FLUSH/FUA support for bio-based dm Mikulas Patocka
2010-09-10 18:46 ` Mike Snitzer
2010-09-10 19:05 ` Mikulas Patocka
2010-09-10 19:24 ` Mike Snitzer
2010-09-10 20:06 ` Mikulas Patocka
2010-09-10 23:36 ` Tejun Heo [this message]
2010-09-11 1:46 ` Mike Snitzer
2010-09-18 17:58 ` Bill Davidsen
2010-09-18 20:42 ` [dm-devel] " Mike Snitzer
2010-09-11 12:19 ` Ric Wheeler
2010-09-13 19:01 ` Mikulas Patocka
2010-09-03 10:29 ` [PATCH 24/41] dm: implement REQ_FLUSH/FUA support for request-based dm Tejun Heo
2010-09-08 1:46 ` Kiyoshi Ueda
2010-09-03 10:29 ` [PATCH 25/41] dm: relax ordering of bio-based flush implementation Tejun Heo
2010-09-03 10:29 ` [PATCH 26/41] dm: fix locking context in queue_io() Tejun Heo
2010-09-03 10:29 ` [PATCH 27/41] block: pass gfp_mask and flags to sb_issue_discard Tejun Heo
2010-09-03 10:29 ` [PATCH 28/41] xfs: replace barriers with explicit flush / FUA usage Tejun Heo
2010-09-03 10:29 ` [PATCH 29/41] btrfs: " Tejun Heo
2010-09-03 10:29 ` [PATCH 30/41] gfs2: " Tejun Heo
2010-09-03 10:29 ` [PATCH 31/41] reiserfs: " Tejun Heo
2010-09-03 10:29 ` [PATCH 32/41] nilfs2: " Tejun Heo
2010-09-03 10:29 ` [PATCH 33/41] jbd: " Tejun Heo
2010-09-03 10:29 ` [PATCH 34/41] jbd2: Modify ASYNC_COMMIT code to not rely on queue draining on barrier Tejun Heo
2010-09-03 10:29 ` [PATCH 35/41] jbd2: replace barriers with explicit flush / FUA usage Tejun Heo
2010-09-03 10:29 ` [PATCH 36/41] ext4: do not send discards as barriers Tejun Heo
2010-09-03 10:29 ` [PATCH 37/41] fat: " Tejun Heo
2010-09-03 10:29 ` [PATCH 38/41] swap: " Tejun Heo
2010-09-03 10:29 ` [PATCH 39/41] block: remove the WRITE_BARRIER flag Tejun Heo
2010-09-03 10:29 ` [PATCH 40/41] block: remove the BLKDEV_IFL_BARRIER flag Tejun Heo
2010-09-03 10:29 ` [PATCH 41/41] block: remove the BH_Eopnotsupp flag Tejun Heo
2010-09-03 18:53 ` [PATCHSET #upstream] block, fs: replace HARDBARRIER with FLUSH/FUA, take#2 Jens Axboe
2010-09-08 16:12 ` Tejun Heo
2010-09-10 10:19 ` Jens Axboe
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