From: Christoph Hellwig <hch@infradead.org>
To: Tejun Heo <tj@kernel.org>
Cc: jack@suse.cz, axboe@kernel.dk, clm@fb.com, jbacik@fb.com,
kernel-team@fb.com, linux-kernel@vger.kernel.org,
linux-btrfs@vger.kernel.org, peterz@infradead.org,
jianchao.w.wang@oracle.com, Bart.VanAssche@wdc.com,
Asai Thambi SP <asamymuthupa@micron.com>,
Stefan Haberland <sth@linux.vnet.ibm.com>,
Jan Hoeppner <hoeppner@linux.vnet.ibm.com>
Subject: Re: [PATCH 4/7] blk-mq: make blk_abort_request() trigger timeout path
Date: Fri, 29 Dec 2017 02:07:47 -0800 [thread overview]
Message-ID: <20171229100747.GC4020@infradead.org> (raw)
In-Reply-To: <20171216120726.517153-5-tj@kernel.org>
On Sat, Dec 16, 2017 at 04:07:23AM -0800, Tejun Heo wrote:
> Note that this makes blk_abort_request() asynchronous - it initiates
> abortion but the actual termination will happen after a short while,
> even when the caller owns the request. AFAICS, SCSI and ATA should be
> fine with that and I think mtip32xx and dasd should be safe but not
> completely sure. It'd be great if people who know the drivers take a
> look.
For that you'll need to CC linux-ide and linux-scsi, and for the
SAS drivers some of the usual suspects that touch the SAS code.
next prev parent reply other threads:[~2017-12-29 10:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-16 12:07 [PATCHSET v3] blk-mq: reimplement timeout handling Tejun Heo
2017-12-16 12:07 ` [PATCH 1/7] blk-mq: protect completion path with RCU Tejun Heo
2017-12-29 10:04 ` Christoph Hellwig
2018-01-08 17:12 ` Tejun Heo
2017-12-16 12:07 ` [PATCH 2/7] blk-mq: replace timeout synchronization with a RCU and generation based scheme Tejun Heo
2017-12-16 12:07 ` [PATCH 3/7] blk-mq: use blk_mq_rq_state() instead of testing REQ_ATOM_COMPLETE Tejun Heo
2017-12-16 12:07 ` [PATCH 4/7] blk-mq: make blk_abort_request() trigger timeout path Tejun Heo
2017-12-29 10:07 ` Christoph Hellwig [this message]
2017-12-16 12:07 ` [PATCH 5/7] blk-mq: remove REQ_ATOM_COMPLETE usages from blk-mq Tejun Heo
2017-12-21 3:56 ` jianchao.wang
2017-12-21 13:50 ` Tejun Heo
2017-12-22 4:02 ` jianchao.wang
2018-01-08 17:27 ` Tejun Heo
2018-01-09 3:08 ` jianchao.wang
2018-01-09 3:37 ` Tejun Heo
2018-01-09 5:59 ` jianchao.wang
2017-12-16 12:07 ` [PATCH 6/7] blk-mq: remove REQ_ATOM_STARTED Tejun Heo
2017-12-16 12:07 ` [PATCH 7/7] blk-mq: rename blk_mq_hw_ctx->queue_rq_srcu to ->srcu Tejun Heo
2017-12-29 10:02 ` [PATCHSET v3] blk-mq: reimplement timeout handling Christoph Hellwig
2018-01-08 17:03 ` Tejun Heo
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