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Re: [Xen-devel] [PATCH 06/32] xen blkback: prepare for bi_rw split

To: mchristi@xxxxxxxxxx
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sat, 7 Nov 2015 02:17:13 -0800
Cc: linux-scsi@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, RogerPauMonnérroger.pau@xxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx
Delivery-date: Sat, 07 Nov 2015 10:17:43 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

A little offtopic for this patch, but can some explain this whole
mess about bios in Xen blkfront?  We can happily do partial completions
at the request later.

Also since the blk-mq conversion the call to blk_end_request_all is
completely broken, so it doesn't look like this code path is exactly
well tested.

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Follow-Ups:
- Re: [Xen-devel] [PATCH 06/32] xen blkback: prepare for bi_rw split
  - From: Bob Liu
- Re: [Xen-devel] [PATCH 06/32] xen blkback: prepare for bi_rw split
  - From: Konrad Rzeszutek Wilk

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