tree c47dd9015bb072e1d31d1cefdfe9995d8a2388ef
parent 4dcaebbf6586d299be8513512a1253f177b803d7
author David Vrabel <david.vrabel@citrix.com> 1317311610 +0100
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1319637755 -0400

block: xen-blkback: use API provided by xenbus module to map rings

The xenbus module provides xenbus_map_ring_valloc() and
xenbus_map_ring_vfree().  Use these to map the ring pages granted by
the frontend.

Acked-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>