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From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Mike Snitzer <snitzer@redhat.com>, Christoph Hellwig <hch@lst.de>,
	Jens Axboe <axboe@kernel.dk>
Cc: "dm-devel@redhat.com" <dm-devel@redhat.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>
Subject: Re: [PATCH v2 1/4] nvme: return BLK_STS_DO_NOT_RETRY if the DNR bit is set
Date: Thu, 15 Apr 2021 23:48:01 +0000
Message-ID: <BYAPR04MB496537773A662383CF1B7BEE864D9@BYAPR04MB4965.namprd04.prod.outlook.com> (raw)
In-Reply-To: <20210415231530.95464-2-snitzer@redhat.com>

On 4/15/21 16:27, Mike Snitzer wrote:
> If the DNR bit is set we should not retry the command.
>
> We care about the retryable vs not retryable distinction at the block
> layer so propagate the equivalent of the DNR bit by introducing
> BLK_STS_DO_NOT_RETRY. Update blk_path_error() to _not_ retry if it
> is set.
>
> This change runs with the suggestion made here:
> https://lore.kernel.org/linux-nvme/20190813170144.GA10269@lst.de/
>
> Suggested-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Mike Snitzer <snitzer@redhat.com>

Looks good.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>



  reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-15 23:15 [PATCH v2 0/4] nvme: improve error handling and ana_state to work well with dm-multipath Mike Snitzer
2021-04-15 23:15 ` [PATCH v2 1/4] nvme: return BLK_STS_DO_NOT_RETRY if the DNR bit is set Mike Snitzer
2021-04-15 23:48   ` Chaitanya Kulkarni [this message]
2021-04-16 13:51   ` Hannes Reinecke
2021-04-15 23:15 ` [PATCH v2 2/4] nvme: allow local retry for requests with REQ_FAILFAST_TRANSPORT set Mike Snitzer
2021-04-16 14:01   ` Hannes Reinecke
2021-04-16 14:53     ` Mike Snitzer
2021-04-16 15:20       ` Hannes Reinecke
2021-04-16 15:32         ` Mike Snitzer
2021-04-15 23:15 ` [PATCH v2 3/4] nvme: introduce FAILUP handling for REQ_FAILFAST_TRANSPORT Mike Snitzer
2021-04-16 14:07   ` Hannes Reinecke
2021-04-16 15:03     ` Mike Snitzer
2021-04-16 16:23       ` Hannes Reinecke
2021-04-16 20:03     ` [dm-devel] " Ewan D. Milne
2021-04-16 20:52   ` Ewan D. Milne
2021-04-16 21:44     ` Mike Snitzer
2021-04-15 23:15 ` [PATCH v2 4/4] nvme: decouple basic ANA log page re-read support from native multipathing Mike Snitzer

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