tree 53c4069ef7be8e54e0bce7c82c0f7316f08390e6
parent c4853efec665134b2e6fc9c13447323240980351
author Michael S. Tsirkin <mst@redhat.com> 1320044736 +0100
committer Jens Axboe <axboe@kernel.dk> 1320044736 +0100

virtio-blk: use ida to allocate disk index

Based on a patch by Mark Wu <dwu@redhat.com>

Current index allocation in virtio-blk is based on a monotonically
increasing variable "index". This means we'll run out of numbers
after a while.  It also could cause confusion about the disk
name in the case of hot-plugging disks.
Change virtio-blk to use ida to allocate index, instead.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>