diff options
Diffstat (limited to 'include/linux/vdpa.h')
| -rw-r--r-- | include/linux/vdpa.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 2ae8443331e1..2cb14847831e 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -66,7 +66,7 @@ struct vdpa_mgmt_dev; * @dma_dev: the actual device that is performing DMA * @driver_override: driver name to force a match * @config: the configuration ops for this device. - * @cf_mutex: Protects get and set access to configuration layout. + * @cf_lock: Protects get and set access to configuration layout. * @index: device index * @features_valid: were features initialized? for legacy guests * @use_va: indicate whether virtual address must be used by this device @@ -79,7 +79,7 @@ struct vdpa_device { struct device *dma_dev; const char *driver_override; const struct vdpa_config_ops *config; - struct mutex cf_mutex; /* Protects get/set config */ + struct rw_semaphore cf_lock; /* Protects get/set config */ unsigned int index; bool features_valid; bool use_va; @@ -398,10 +398,10 @@ static inline int vdpa_reset(struct vdpa_device *vdev) const struct vdpa_config_ops *ops = vdev->config; int ret; - mutex_lock(&vdev->cf_mutex); + down_write(&vdev->cf_lock); vdev->features_valid = false; ret = ops->reset(vdev); - mutex_unlock(&vdev->cf_mutex); + up_write(&vdev->cf_lock); return ret; } @@ -420,9 +420,9 @@ static inline int vdpa_set_features(struct vdpa_device *vdev, u64 features) { int ret; - mutex_lock(&vdev->cf_mutex); + down_write(&vdev->cf_lock); ret = vdpa_set_features_unlocked(vdev, features); - mutex_unlock(&vdev->cf_mutex); + up_write(&vdev->cf_lock); return ret; } |