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From: Jens Axboe <jaxboe@fusionio.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH] block: remove REQ_HARDBARRIER
Date: Sat, 23 Oct 2010 21:07:26 +0200	[thread overview]
Message-ID: <4CC3326E.5020009@fusionio.com> (raw)
In-Reply-To: <20101023165924.GA1395@lst.de>

On 2010-10-23 18:59, Christoph Hellwig wrote:
> REQ_HARDBARRIER is dead now, so remove the leftovers.  What's left
> at this point is:
> 
>  - various checks inside the block layer.
>  - sanity checks in bio based drivers.
>  - now unused bio_empty_barrier helper.
>  - Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it's dead for a while,
>    but Xen really needs to sort out it's barrier situaton.
>  - setting of ordered tags in uas - dead code copied from old scsi
>    drivers.
>  - scsi different retry for barriers - it's dead and should have been
>    removed when flushes were converted to FS requests.
>  - blktrace handling of barriers - removed.  Someone who knows blktrace
>    better should add support for REQ_FLUSH and REQ_FUA, though.

Thanks Christoph, applied for 2.6.37 (but with a few days of brewing).

-- 
Jens Axboe

  parent reply	other threads:[~2010-10-23 19:07 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-16 16:51 [RFC PATCHSET block#for-2.6.36-post] block: convert to REQ_FLUSH/FUA Tejun Heo
2010-08-16 16:51 ` Tejun Heo
2010-08-16 16:51 ` [PATCH 1/5] block/loop: implement REQ_FLUSH/FUA support Tejun Heo
2010-08-16 16:51   ` Tejun Heo
2010-08-16 16:51 ` Tejun Heo
2010-08-16 16:52 ` [PATCH 2/5] virtio_blk: " Tejun Heo
2010-08-16 16:52 ` Tejun Heo
2010-08-16 16:52   ` Tejun Heo
2010-08-16 18:33   ` Christoph Hellwig
2010-08-17  8:17     ` Tejun Heo
2010-08-17 13:23       ` Christoph Hellwig
2010-08-17 16:22         ` Tejun Heo
2010-08-18 10:22         ` Rusty Russell
2010-08-17  1:16   ` Rusty Russell
2010-08-17  8:18     ` Tejun Heo
2010-08-19 15:14   ` [PATCH 2/5 UPDATED] virtio_blk: drop REQ_HARDBARRIER support Tejun Heo
2010-08-16 16:52 ` [PATCH 3/5] lguest: replace VIRTIO_F_BARRIER support with VIRTIO_F_FLUSH/FUA support Tejun Heo
2010-08-16 16:52   ` Tejun Heo
2010-08-19 15:15   ` [PATCH 3/5] lguest: replace VIRTIO_F_BARRIER support with VIRTIO_F_FLUSH support Tejun Heo
2010-08-16 16:52 ` [PATCH 3/5] lguest: replace VIRTIO_F_BARRIER support with VIRTIO_F_FLUSH/FUA support Tejun Heo
2010-08-16 16:52 ` [PATCH 4/5] md: implment REQ_FLUSH/FUA support Tejun Heo
2010-08-16 16:52 ` Tejun Heo
2010-08-16 16:52   ` Tejun Heo
2010-08-24  5:41   ` Neil Brown
2010-08-25 11:22     ` [PATCH UPDATED " Tejun Heo
2010-08-25 11:42       ` Neil Brown
2010-08-16 16:52 ` [PATCH 5/5] dm: implement " Tejun Heo
2010-08-16 16:52   ` Tejun Heo
2010-08-16 19:02   ` Mike Snitzer
2010-08-17  9:33     ` Tejun Heo
2010-08-17 13:13       ` Christoph Hellwig
2010-08-17 14:07       ` Mike Snitzer
2010-08-17 16:51         ` Tejun Heo
2010-08-17 18:21           ` Mike Snitzer
2010-08-17 18:21             ` Mike Snitzer
2010-08-18  6:32             ` Tejun Heo
2010-08-19 10:32           ` Kiyoshi Ueda
2010-08-19 15:45             ` Tejun Heo
2010-08-16 16:52 ` Tejun Heo
2010-08-18  9:53 ` [RFC PATCHSET block#for-2.6.36-post] block: convert to REQ_FLUSH/FUA Christoph Hellwig
2010-08-18 14:26   ` James Bottomley
2010-08-18 14:33     ` Christoph Hellwig
2010-08-19 15:37     ` FUJITA Tomonori
2010-08-19 15:41       ` Christoph Hellwig
2010-08-19 15:56         ` FUJITA Tomonori
2010-08-23 16:47 ` Christoph Hellwig
2010-08-24  9:51   ` Lars Ellenberg
2010-08-24 15:45   ` Philipp Reisner
     [not found]     ` <20101022083511.GA7853@lst.de>
2010-10-23 11:18       ` [GIT PULL] convert DRBD " Philipp Reisner
2010-10-23 11:21         ` Christoph Hellwig
2010-10-23 16:48         ` Jens Axboe
2010-10-23 16:59           ` [PATCH] block: remove REQ_HARDBARRIER Christoph Hellwig
2010-10-23 17:17             ` Matthew Wilcox
2010-10-23 19:07             ` Jens Axboe [this message]
2010-10-24 11:58               ` Christoph Hellwig
2010-11-10 13:42               ` Christoph Hellwig
2010-11-10 13:59                 ` Jens Axboe
2010-10-23 19:08             ` Jens Axboe
2010-10-25  8:54             ` Tejun Heo

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