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

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Sat, Nov 07, 2015 at 02:17:13AM -0800, Christoph Hellwig wrote:
> 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.

Not sure I follow. There are a couple of patches that are touching
Xen block code right now - the multi-queue, the ones in xen-tip
(which look to have be merged on Wednesday) and this one.

And oddly enough I never got copied on this original patch.
> 
> 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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