tree b7af564d1e32ce4eceba6f6a438256d6c3ca77fd
parent 9c02f2b02e29a2244e36c6e1f246080d8afc6cff
author Chris Lalancette <clalance@redhat.com> 1221687032 -0700
committer Jens Axboe <jens.axboe@oracle.com> 1223535378 +0200

block: Expand Xen blkfront for > 16 xvd

Until recently, the maximum number of xvd block devices you could attach
to a Xen domU was 16. This limitation turned out to be problematic for
some users, so it was expanded to handle a much larger number of disks.
However, this requires a couple of changes in the way that blkfront
scans for disks. This functionality is already present in the Xen
linux-2.6.18-xen.hg tree; the attached patch adds this functionality to
the mainline xen-blkfront implementation. I successfully tested it on a
2.6.25 tree, and build tested it on 2.6.27-rc3.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>