From: Jens Axboe <jaxboe@fusionio.com>
To: Tejun Heo <tj@kernel.org>
Cc: "jack@suse.cz" <jack@suse.cz>,
"snitzer@redhat.com" <snitzer@redhat.com>,
"mst@redhat.com" <mst@redhat.com>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"dm-devel@redhat.com" <dm-devel@redhat.com>,
"James.Bottomley@suse.de" <James.Bottomley@suse.de>,
"konishi.ryusuke@lab.ntt.co.jp" <konishi.ryusuke@lab.ntt.co.jp>,
"hch@lst.de" <hch@lst.de>,
"k-ueda@ct.jp.nec.com" <k-ueda@ct.jp.nec.com>,
"vst@vlnb.net" <vst@vlnb.net>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"rusty@rustcorp.com.au" <rusty@rustcorp.com.au>,
"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
"mpatocka@redhat.com" <mpatocka@redhat.com>,
"swhiteho@redhat.com" <swhiteho@redhat.com>,
"chris.mason@oracle.com" <chris.mason@oracle.com>,
"tytso@mit.edu" <tytso@mit.edu>,
Subject: Re: [PATCHSET #upstream] block, fs: replace HARDBARRIER with FLUSH/FUA, take#2
Date: Fri, 03 Sep 2010 20:53:34 +0200 [thread overview]
Message-ID: <4C81442E.5040301@fusionio.com> (raw)
In-Reply-To: <1283509796-1510-1-git-send-email-tj@kernel.org>
On 09/03/2010 12:29 PM, Tejun Heo wrote:
> Hello,
>
> This patchset is combination of the following two patchsets.
>
> [1] block, fs: replace HARDBARRIER with FLUSH/FUA
> [2] block, dm: finish REQ_FLUSH/FUA conversion, take#2
>
> Changes from the previous postings are
>
> * Rebased on top of v2.6.36-rc3.
>
> * 0010-block-implement-REQ_FLUSH-FUA-based-interface-for-FL.patch
> description updated to include why special -EOPNOTSUPP handling is
> no longer necessary as suggested by Mike Snitzer.
>
> * 0025-dm-relax-ordering-of-bio-based-flush-implementation.patch
> description updated to include why flush_error and special error
> handling logic are no longer necessary as suggested by Mike
> Snitzer.
>
> * 0013-block-initialize-flush-request-with-WRITE_FLUSH-inst.patch and
> 0014-block-kick-queue-after-sequencing-REQ_FLUSH-FUA.patch added.
> These fixes aren't strictly required by the current users but remove
> fishy corner cases.
>
> * 0015-block-make-sure-FSEQ_DATA-request-has-the-same-rq_di.patch
> added. This is needed to make requested based dm work.
>
> * 0026-dm-fix-locking-context-in-queue_io.patch added. This fixes
> locking context problem introduced by
> 0025-dm-relax-ordering-of-bio-based-flush-implementation.patch.
>
> * Tested/Reviewed-by's added and patches reordered such that block
> layer conversion comes first followed by block driver conversions,
> filesystem conversions and then finally removal of deprecate stuff.
>
> I think the patchset is mostly ready now although I would love to have
> acked/reviewd-by's on bio-based dm conversion patches. Jens,
> Christoph, how do you guys wanna steer these patches? I think it
> would be best to go through the block tree but splitting parts and
> doing cross tree pull/merges should be doable too.
Since the core changes are block churn, it would probably be
sanest to pull everything in there. Core into for-2.6.37/core,
then have for-2.6.37/fs and 2.6.37/drivers on top of that.
--
Jens Axboe
next prev parent reply other threads:[~2010-09-03 18:53 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
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 ` Jens Axboe [this message]
2010-09-08 16:12 ` [PATCHSET #upstream] block, fs: replace HARDBARRIER with FLUSH/FUA, take#2 Tejun Heo
2010-09-10 10:19 ` Jens Axboe
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