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[Xen-devel] purpose of struct buf_ioreq's dir field

To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Date: Thu, 27 Oct 2016 05:37:57 -0600
Cc: Paul Durrant <paul.durrant@xxxxxxxxxx>
Delivery-date: Thu, 27 Oct 2016 11:38:24 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

Hello,

can anyone shed some light on the purpose of that field? Since
buffered ioreq-s by their nature don't have any response, I don't
see what good they can be for when not doing writes.

Thanks, Jan

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