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Commit 976eba1c authored by Paul Durrant's avatar Paul Durrant Committed by Stefano Stabellini
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xen-disk: only advertize feature-persistent if grant copy is not available



If grant copy is available then it will always be used in preference to
persistent maps. In this case feature-persistent should not be advertized
to the frontend, otherwise it may needlessly copy data into persistently
granted buffers.

Signed-off-by: default avatarPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: default avatarStefano Stabellini <sstabellini@kernel.org>
Reviewed-by: default avatarStefano Stabellini <sstabellini@kernel.org>
parent b0ac694f
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