drm/radeon/radeon_gem.c

324 	down_read(&rdev->exclusive_lock);
331 		up_read(&rdev->exclusive_lock);
339 		up_read(&rdev->exclusive_lock);
344 	up_read(&rdev->exclusive_lock);
383 	down_read(&rdev->exclusive_lock);
426 	up_read(&rdev->exclusive_lock);
433 	up_read(&rdev->exclusive_lock);
451 	down_read(&rdev->exclusive_lock);
456 		up_read(&rdev->exclusive_lock);
463 	up_read(&rdev->exclusive_lock);