linux-kernel - Re: [PATCH v7 22/46] virtio_blk: fix race at module removal

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Message-ID: <20141201123621.22be329d.cornelia.huck@de.ibm.com>
Date:	Mon, 1 Dec 2014 12:36:21 +0100
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>,
	rusty@....ibm.com, nab@...ux-iscsi.org, pbonzini@...hat.com,
	thuth@...ux.vnet.ibm.com, dahi@...ux.vnet.ibm.com,
	Rusty Russell <rusty@...tcorp.com.au>,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v7 22/46] virtio_blk: fix race at module removal

On Sun, 30 Nov 2014 17:11:06 +0200
"Michael S. Tsirkin" <mst@...hat.com> wrote:

> If a device appears while module is being removed,
> driver will get a callback after we've given up
> on the major number.
> 
> In theory this means this major number can get reused
> by something else, resulting in a conflict.
> 
> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
> ---
>  drivers/block/virtio_blk.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Cornelia Huck <cornelia.huck@...ibm.com>

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