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Re: [Xen-devel] [PATCH v3 7/8] xen_disk: use a single entry iovec

To: Paul Durrant <paul.durrant@xxxxxxxxxx>
From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Date: Thu, 17 May 2018 11:59:05 +0100
Cc: Kevin Wolf <kwolf@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, qemu-block@xxxxxxxxxx, qemu-devel@xxxxxxxxxx, Max Reitz <mreitz@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 17 May 2018 10:59:26 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Fri, May 04, 2018 at 08:26:06PM +0100, Paul Durrant wrote:
> Since xen_disk now always copies data to and from a guest there is no need
> to maintain a vector entry corresponding to every page of a request.
> This means there is less per-request state to maintain so the ioreq
> structure can shrink significantly.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

-- 
Anthony PERARD

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References:
- [Xen-devel] [PATCH v3 0/8] xen_disk: legacy code removal and cleanup
  - From: Paul Durrant
- [Xen-devel] [PATCH v3 7/8] xen_disk: use a single entry iovec
  - From: Paul Durrant

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