On Wed, Jan 16, 2019 at 09:47:41PM +0800, Dongli Zhang wrote:
> There is no need to wake up xen_blkif_schedule() as kthread_stop() is able
> to already wake up the kernel thread.
>
> Signed-off-by: Dongli Zhang <dongli.zh...@oracle.com>
> ---
> drivers/block/xen-blkback/xenbus.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/block/xen-blkback/xenbus.c
> b/drivers/block/xen-blkback/xenbus.c
> index a4bc74e..37ac59e 100644
> --- a/drivers/block/xen-blkback/xenbus.c
> +++ b/drivers/block/xen-blkback/xenbus.c
> @@ -254,10 +254,8 @@ static int xen_blkif_disconnect(struct xen_blkif *blkif)
> if (!ring->active)
> continue;
>
> - if (ring->xenblkd) {
> + if (ring->xenblkd)
> kthread_stop(ring->xenblkd);
> - wake_up(&ring->shutdown_wq);
I've now realized that shutdown_wq is basically useless, and should be
removed, could you please do it in this patch?
Thanks, Roger.
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