diff options
Diffstat (limited to 'drivers/vfio/vfio_main.c')
| -rw-r--r-- | drivers/vfio/vfio_main.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index ce6e6a560c70..6d51b700764e 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -126,6 +126,19 @@ static void vfio_release_device_set(struct vfio_device *device) xa_unlock(&vfio_device_set_xa); } +unsigned int vfio_device_set_open_count(struct vfio_device_set *dev_set) +{ + struct vfio_device *cur; + unsigned int open_count = 0; + + lockdep_assert_held(&dev_set->lock); + + list_for_each_entry(cur, &dev_set->device_list, dev_set_list) + open_count += cur->open_count; + return open_count; +} +EXPORT_SYMBOL_GPL(vfio_device_set_open_count); + /* * Group objects - create, release, get, put, search */ |