From: Christoph Hellwig <hch@infradead.org>
To: Po-Wen Kao <powen.kao@mediatek.com>
Cc: linux-block@vger.kernel.org, axboe@kernel.dk,
linux-kernel@vger.kernel.org, stanley.chu@mediatek.com,
linux-scsi@vger.kernel.org, martin.petersen@oracle.com,
avri.altman@wdc.com, alim.akhtar@samsung.com, jejb@linux.ibm.com,
peter.wang@mediatek.com, chun-hung.wu@mediatek.com,
alice.chao@mediatek.com, jonathan.hsu@mediatek.com,
cc.chou@mediatek.com, chaotian.jing@mediatek.com,
jiajie.hao@mediatek.com, wsd_upstream@mediatek.com,
ed.tsai@mediatek.com
Subject: Re: [PATCH 1/2] blk-mq: new busy request iterator for driver
Date: Wed, 29 Sep 2021 08:08:26 +0100 [thread overview]
Message-ID: <YVQQ6mNhdMVQOhZN@infradead.org> (raw)
In-Reply-To: <20210929070047.4223-2-powen.kao@mediatek.com>
On Wed, Sep 29, 2021 at 03:00:46PM +0800, Po-Wen Kao wrote:
> Driver occasionally execute allocated request directly without
> dispatching to block layer, thus request never appears in tags->rqs.
> To allow driver to iterate through requests in static_rqs, a new
> interface blk_mq_drv_tagset_busy_iter() is introduced.
Don't do that. All requests must be dispatched to blk-mq. Let's not
even get started on these hacks that will make our life painful forever.
next prev parent reply other threads:[~2021-09-29 7:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-29 7:00 [PATCH 0/2] Fix UFS task management command timeout Po-Wen Kao
2021-09-29 7:00 ` [PATCH 1/2] blk-mq: new busy request iterator for driver Po-Wen Kao
2021-09-29 7:08 ` Christoph Hellwig [this message]
2021-09-29 7:00 ` [PATCH 2/2] scsi: ufs: fix TM request timeout Po-Wen Kao
2021-09-29 7:39 ` [PATCH 0/2] Fix UFS task management command timeout Avri Altman
2021-09-30 8:50 ` Po-Wen Kao
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