On Sun, 5 Oct 2014 19:07:16 +0300 "Michael S. Tsirkin" <mst@xxxxxxxxxx> 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@xxxxxxxxxx> > --- > drivers/net/virtio_net.c | 7 +------ > 1 file changed, 1 insertion(+), 6 deletions(-) > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c > index fa17afa..d80fef4 100644 > --- a/drivers/net/virtio_net.c > +++ b/drivers/net/virtio_net.c > @@ -1430,7 +1426,7 @@ static void virtnet_config_changed_work(struct work_struct *work) > netif_tx_stop_all_queues(vi->dev); > } > done: > - mutex_unlock(&vi->config_lock); > + return; > } > > static void virtnet_config_changed(struct virtio_device *vdev) I'd probably return directly in the remaining 'goto done;' cases, but still Reviewed-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx> _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
