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authorTonghao Zhang <xiangxia.m.yue@gmail.com>2018-09-25 15:36:50 +0300
committerDavid S. Miller <davem@davemloft.net>2018-09-27 06:25:55 +0300
commita6a67a2f343c613752165101208bd096b0bba6e1 (patch)
tree6a6f2ba71ada9bf34eef5e1c6bd1533f5adae590 /drivers/vhost/net.c
parent78139c94dc8c96a478e67dab3bee84dc6eccb5fd (diff)
downloadlinux-a6a67a2f343c613752165101208bd096b0bba6e1.tar.xz
net: vhost: replace magic number of lock annotation
Use the VHOST_NET_VQ_XXX as a subclass for mutex_lock_nested. Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/net.c')
-rw-r--r--drivers/vhost/net.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 1bff6bc8161a..5fe57ab968c3 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -856,7 +856,7 @@ static void handle_tx(struct vhost_net *net)
struct vhost_virtqueue *vq = &nvq->vq;
struct socket *sock;
- mutex_lock(&vq->mutex);
+ mutex_lock_nested(&vq->mutex, VHOST_NET_VQ_TX);
sock = vq->private_data;
if (!sock)
goto out;
@@ -921,7 +921,7 @@ static int vhost_net_rx_peek_head_len(struct vhost_net *net, struct sock *sk,
/* Flush batched heads first */
vhost_net_signal_used(rnvq);
/* Both tx vq and rx socket were polled here */
- mutex_lock_nested(&tvq->mutex, 1);
+ mutex_lock_nested(&tvq->mutex, VHOST_NET_VQ_TX);
vhost_disable_notify(&net->dev, tvq);
preempt_disable();
@@ -1063,7 +1063,7 @@ static void handle_rx(struct vhost_net *net)
__virtio16 num_buffers;
int recv_pkts = 0;
- mutex_lock_nested(&vq->mutex, 0);
+ mutex_lock_nested(&vq->mutex, VHOST_NET_VQ_RX);
sock = vq->private_data;
if (!sock)
goto out;