more rcu_read_(un)lock conversions

[PATCH 1/2] virtio/vhost: Use auto_rcu_read macros

Posted by Dr. David Alan Gilbert (git) 6 years ago

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Use RCU_READ_LOCK_GUARD instead of manual rcu_read_(un)lock

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 hw/virtio/vhost.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 99de5f196f..4da0d5a6c5 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -924,7 +924,7 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write)
     uint64_t uaddr, len;
     int ret = -EFAULT;
 
-    rcu_read_lock();
+    RCU_READ_LOCK_GUARD();
 
     trace_vhost_iotlb_miss(dev, 1);
 
@@ -956,8 +956,6 @@ int vhost_device_iotlb_miss(struct vhost_dev *dev, uint64_t iova, int write)
     trace_vhost_iotlb_miss(dev, 2);
 
 out:
-    rcu_read_unlock();
-
     return ret;
 }
 
-- 
2.23.0

[PATCH 1/2] virtio/vhost: Use auto_rcu_read macros
[PATCH 2/2] virtio_net: use RCU_READ_LOCK_GUARD