From: Christoph Hellwig <hch@lst.de> To: Jens Axboe <axboe@kernel.dk> 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: [PATCH 18/23] block: add a error_count field to struct request Date: Wed, 19 Apr 2017 21:27:03 +0200 [thread overview] Message-ID: <20170419192708.22098-19-hch@lst.de> (raw) In-Reply-To: <20170419192708.22098-1-hch@lst.de> This is for the legacy floppy and ataflop drivers that currently abuse ->errors for this purpose. It's stashed away in a union to not grow the struct size, the other fields are either used by modern drivers for different purposes or the I/O scheduler before queing the I/O to drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/blkdev.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d8bcd51b8a47..e8006abce8b6 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -175,6 +175,7 @@ struct request { struct rb_node rb_node; /* sort/lookup */ struct bio_vec special_vec; void *completion_data; + int error_count; /* for legacy drivers, don't use */ }; /* -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: hch@lst.de (Christoph Hellwig) Subject: [PATCH 18/23] block: add a error_count field to struct request Date: Wed, 19 Apr 2017 21:27:03 +0200 [thread overview] Message-ID: <20170419192708.22098-19-hch@lst.de> (raw) In-Reply-To: <20170419192708.22098-1-hch@lst.de> This is for the legacy floppy and ataflop drivers that currently abuse ->errors for this purpose. It's stashed away in a union to not grow the struct size, the other fields are either used by modern drivers for different purposes or the I/O scheduler before queing the I/O to drivers. Signed-off-by: Christoph Hellwig <hch at lst.de> --- include/linux/blkdev.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d8bcd51b8a47..e8006abce8b6 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -175,6 +175,7 @@ struct request { struct rb_node rb_node; /* sort/lookup */ struct bio_vec special_vec; void *completion_data; + int error_count; /* for legacy drivers, don't use */ }; /* -- 2.11.0
next prev parent reply other threads:[~2017-04-19 19:27 UTC|newest] Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-04-19 19:26 kill req->errors V3 Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 01/23] pd: don't check blk_execute_rq return value Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 21:02 ` Bart Van Assche 2017-04-19 21:02 ` Bart Van Assche 2017-04-19 21:02 ` Bart Van Assche 2017-04-19 19:26 ` [PATCH 02/23] block: remove the " Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 21:07 ` Bart Van Assche 2017-04-19 21:07 ` Bart Van Assche 2017-04-19 21:07 ` Bart Van Assche 2017-04-20 5:11 ` hch 2017-04-20 5:11 ` hch 2017-04-19 19:26 ` [PATCH 03/23] nvme-fc: fix status code handling in nvme_fc_fcpio_done Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 04/23] nvme: split nvme status from block req->errors Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 05/23] nvme: make nvme_error_status private Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 06/23] virtio: fix spelling of virtblk_scsi_request_done Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 07/23] virtio_blk: don't use req->errors Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 08/23] scsi: introduce a result field in struct scsi_request Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-20 1:43 ` Martin K. Petersen 2017-04-20 1:43 ` Martin K. Petersen 2017-04-20 5:17 ` Christoph Hellwig 2017-04-20 5:17 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 09/23] loop: zero-fill bio on the submitting cpu Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 10/23] null_blk: don't pass always-0 req->errors to blk_mq_complete_request Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 11/23] dm rq: don't pass irrelevant error code " Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 12/23] dm mpath: don't check for req->errors Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 13/23] nbd: don't use req->errors Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:26 ` [PATCH 14/23] mtip32xx: add a status field to struct mtip_cmd Christoph Hellwig 2017-04-19 19:26 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 15/23] xen-blkfront: don't use req->errors Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 16/23] blk-mq: remove the error argument to blk_mq_complete_request Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 17/23] blk-mq: simplify __blk_mq_complete_request Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig [this message] 2017-04-19 19:27 ` [PATCH 18/23] block: add a error_count field to struct request Christoph Hellwig 2017-04-19 19:27 ` [PATCH 19/23] floppy: switch from req->errors to req->error_count Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 20/23] ataflop: " Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 21/23] swim3: remove (commented out) printing of req->errors Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 22/23] blktrace: remove the unused block_rq_abort tracepoint Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 19:27 ` [PATCH 23/23] block: remove the errors field from struct request Christoph Hellwig 2017-04-19 19:27 ` Christoph Hellwig 2017-04-19 21:10 ` Bart Van Assche 2017-04-19 21:10 ` Bart Van Assche 2017-04-19 21:10 ` Bart Van Assche 2017-04-20 14:02 kill req->errors V4 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
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