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SubjectRe: [RFC PATCH] vhost-blk: An in-kernel accelerator for virtio-blk

On 07/28/2011 05:22 PM, Michael S. Tsirkin wrote:
> On Thu, Jul 28, 2011 at 10:29:05PM +0800, Liu Yuan wrote:
>> +static struct miscdevice vhost_blk_misc = {
>> + 234,
> Don't get a major unless you really must.

the minor number 234 conflicts with that of BTRFS, in kernel 3.0 at least.
Therefore you cannot load vhost_blk.ko if btrfs.ko was already loaded.
Probably that number should be something else, with which you don't have
conflict with any minor number in include/linux/miscdevice.h.

Dongsu Park

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