Re: [PATCH] virtio-blk: Don't free ida when disk is in use

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Alexander Graf <agraf@xxxxxxx> writes:

> When a file system is mounted on a virtio-blk disk, we then remove it
> and then reattach it, the reattached disk gets the same disk name and
> ids as the hot removed one.
>
> This leads to very nasty effects - mostly rendering the newly attached
> device completely unusable.
>
> Trying what happens when I do the same thing with a USB device, I saw
> that the sd node simply doesn't get free'd when a device gets forcefully
> removed.
>
> Imitate the same behavior for vd devices. This way broken vd devices
> simply are never free'd and newly attached ones keep working just fine.
>
> Signed-off-by: Alexander Graf <agraf@xxxxxxx>

I think deserves a CC:stable, no?

I've put it in my pending queue for *next* merge window for now...

Thanks,
Rusty.
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