Re: [PATCHv4] virtio-blk: use ida to allocate disk index
From: Jens Axboe
Date: Mon Oct 31 2011 - 03:05:56 EST
On 2011-10-30 20:29, Michael S. Tsirkin wrote:
> Based on a patch by Mark Wu <dwu@xxxxxxxxxx>
> 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@xxxxxxxxxx>
> Changes from Mark's versions:
> use the new ida_simple_get
> error handling cleanup
> fix user after free
> Works fine for me.
> Jens, could you merge this for 3.2?
> That is, unless Rusty complains shortly ...
Yep, tentatively added.
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