vfio: More vfio_file_is_group() use cases

Replace further open coded tests with helper.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/166516896843.1215571.5378890510536477434.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
index 04099a8..2d16879 100644 (file)
--- a/drivers/vfio/vfio_main.c
+++ b/drivers/vfio/vfio_main.c
@@ -1615,7 +1615,7 @@ bool vfio_file_enforced_coherent(struct file *file)
        struct vfio_group *group = file->private_data;
        bool ret;
 
-       if (file->f_op != &vfio_group_fops)
+       if (!vfio_file_is_group(file))
                return true;
 
        mutex_lock(&group->group_lock);
@@ -1647,7 +1647,7 @@ void vfio_file_set_kvm(struct file *file, struct kvm *kvm)
 {
        struct vfio_group *group = file->private_data;
 
-       if (file->f_op != &vfio_group_fops)
+       if (!vfio_file_is_group(file))
                return;
 
        mutex_lock(&group->group_lock);
@@ -1667,7 +1667,7 @@ bool vfio_file_has_dev(struct file *file, struct vfio_device *device)
 {
        struct vfio_group *group = file->private_data;
 
-       if (file->f_op != &vfio_group_fops)
+       if (!vfio_file_is_group(file))
                return false;
 
        return group == device->group;