linux-kernel - Re: [PATCH 07/16] virtio-blk: drop config

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Date:	Mon, 6 Oct 2014 13:48:45 +0200
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 07/16] virtio-blk: drop config_mutex

On Sun, 5 Oct 2014 19:07:10 +0300
"Michael S. Tsirkin" <mst@...hat.com> wrote:

> config_mutex served two purposes: prevent multiple concurrent config
> change handlers, and synchronize access to config_enable flag.
> 
> Since commit dbf2576e37da0fcc7aacbfbb9fd5d3de7888a3c1
>     workqueue: make all workqueues non-reentrant
> all workqueues are non-reentrant, and config_enable
> is now gone.
> 
> Get rid of the unnecessary lock.
> 
> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
> ---
>  drivers/block/virtio_blk.c | 8 --------
>  1 file changed, 8 deletions(-)
> 

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

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