From: Jens Axboe <axboe@kernel.dk>
To: Christoph Hellwig <hch@lst.de>
Cc: "Josef Bacik" <jbacik@fb.com>,
"James Smart" <james.smart@broadcom.com>,
"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-block@vger.kernel.org, dm-devel@redhat.com
Subject: Re: kill req->errors V4
Date: Thu, 20 Apr 2017 12:16:55 -0600 [thread overview]
Message-ID: <20170420181654.GC22378@kernel.dk> (raw)
In-Reply-To: <20170420140316.6546-1-hch@lst.de>
On Thu, Apr 20 2017, Christoph Hellwig wrote:
> Currently the request structure has an errors field that is used in
> various different ways. The oldest drivers use it as an error count,
> blk-mq and the generic timeout code assume that it holds a Linux
> errno for block completions, and various drivers use it for internal
> status values, often overwriting them with Linux errnos later,
> that is unless they are processing passthrough requests in which
> case they'll leave their errors in it.
>
> This series kills the ->errors field and replaced it with new fields
> in the drivers (or an odd hack in a union in struct request for
> two bitrotting old drivers).
Applied for 4.12, thanks.
--
Jens Axboe
WARNING: multiple messages have this Message-ID (diff)
From: axboe@kernel.dk (Jens Axboe)
Subject: kill req->errors V4
Date: Thu, 20 Apr 2017 12:16:55 -0600 [thread overview]
Message-ID: <20170420181654.GC22378@kernel.dk> (raw)
In-Reply-To: <20170420140316.6546-1-hch@lst.de>
On Thu, Apr 20 2017, Christoph Hellwig wrote:
> Currently the request structure has an errors field that is used in
> various different ways. The oldest drivers use it as an error count,
> blk-mq and the generic timeout code assume that it holds a Linux
> errno for block completions, and various drivers use it for internal
> status values, often overwriting them with Linux errnos later,
> that is unless they are processing passthrough requests in which
> case they'll leave their errors in it.
>
> This series kills the ->errors field and replaced it with new fields
> in the drivers (or an odd hack in a union in struct request for
> two bitrotting old drivers).
Applied for 4.12, thanks.
--
Jens Axboe
next prev parent reply other threads:[~2017-04-20 18:16 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-20 14:02 kill req->errors V4 Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:02 ` [PATCH 01/23] pd: don't check blk_execute_rq return value Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:59 ` Johannes Thumshirn
2017-04-20 14:59 ` Johannes Thumshirn
2017-04-20 14:59 ` Johannes Thumshirn
2017-04-20 14:02 ` [PATCH 02/23] block: remove the " Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 15:19 ` Bart Van Assche
2017-04-20 15:19 ` Bart Van Assche
2017-04-20 15:19 ` Bart Van Assche
2017-04-20 14:02 ` [PATCH 03/23] nvme-fc: fix status code handling in nvme_fc_fcpio_done Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:02 ` [PATCH 04/23] nvme: split nvme status from block req->errors Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:02 ` [PATCH 05/23] nvme: make nvme_error_status private Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:02 ` [PATCH 06/23] virtio: fix spelling of virtblk_scsi_request_done Christoph Hellwig
2017-04-20 14:02 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 07/23] virtio_blk: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 08/23] scsi: introduce a result field in struct scsi_request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 09/23] loop: zero-fill bio on the submitting cpu Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 10/23] null_blk: don't pass always-0 req->errors to blk_mq_complete_request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:02 ` Johannes Thumshirn
2017-04-20 15:02 ` Johannes Thumshirn
2017-04-20 15:02 ` Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 11/23] dm rq: don't pass irrelevant error code " Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 12/23] dm mpath: don't check for req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:04 ` Johannes Thumshirn
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 15:25 ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 13/23] nbd: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 14/23] mtip32xx: add a status field to struct mtip_cmd Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:13 ` Johannes Thumshirn
2017-04-20 15:13 ` Johannes Thumshirn
2017-04-20 15:13 ` Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 15/23] xen-blkfront: don't use req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 16/23] blk-mq: remove the error argument to blk_mq_complete_request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:14 ` Johannes Thumshirn
2017-04-20 15:14 ` Johannes Thumshirn
2017-04-20 15:14 ` Johannes Thumshirn
2017-04-20 15:28 ` Bart Van Assche
2017-04-20 15:28 ` Bart Van Assche
2017-04-20 15:28 ` Bart Van Assche
2017-04-20 14:03 ` [PATCH 17/23] blk-mq: simplify __blk_mq_complete_request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 18/23] block: add a error_count field to struct request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 19/23] floppy: switch from req->errors to req->error_count Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 20/23] ataflop: " Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 14:03 ` [PATCH 21/23] swim3: remove (commented out) printing of req->errors Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:19 ` Johannes Thumshirn
2017-04-20 15:19 ` Johannes Thumshirn
2017-04-20 15:19 ` Johannes Thumshirn
2017-04-20 14:03 ` [PATCH 22/23] blktrace: remove the unused block_rq_abort tracepoint Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:20 ` Johannes Thumshirn
2017-04-20 15:20 ` Johannes Thumshirn
2017-04-20 15:20 ` Johannes Thumshirn
2017-04-20 15:25 ` Christoph Hellwig
2017-04-20 15:25 ` Christoph Hellwig
2017-04-20 15:38 ` Johannes Thumshirn
2017-04-20 15:38 ` Johannes Thumshirn
2017-04-20 15:38 ` Johannes Thumshirn
2017-04-20 18:13 ` Jens Axboe
2017-04-20 18:13 ` Jens Axboe
2017-04-20 14:03 ` [PATCH 23/23] block: remove the errors field from struct request Christoph Hellwig
2017-04-20 14:03 ` Christoph Hellwig
2017-04-20 15:21 ` Johannes Thumshirn
2017-04-20 15:21 ` Johannes Thumshirn
2017-04-20 15:21 ` Johannes Thumshirn
2017-04-20 18:16 ` Jens Axboe [this message]
2017-04-20 18:16 ` kill req->errors V4 Jens Axboe
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