linux-kernel - Re: [PATCH 4/7] blk-mq: make blk_abort

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Message-ID: <20171229100747.GC4020@infradead.org>
Date:   Fri, 29 Dec 2017 02:07:47 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Tejun Heo <tj@...nel.org>
Cc:     jack@...e.cz, axboe@...nel.dk, clm@...com, jbacik@...com,
        kernel-team@...com, linux-kernel@...r.kernel.org,
        linux-btrfs@...r.kernel.org, peterz@...radead.org,
        jianchao.w.wang@...cle.com, Bart.VanAssche@....com,
        Asai Thambi SP <asamymuthupa@...ron.com>,
        Stefan Haberland <sth@...ux.vnet.ibm.com>,
        Jan Hoeppner <hoeppner@...ux.vnet.ibm.com>
Subject: Re: [PATCH 4/7] blk-mq: make blk_abort_request() trigger timeout path

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.