gpu/drm/drm_gem.c

70  * struct file.  However, file descriptors as handles to a struct file have
77  * This led to a plan of using our own integer IDs (called handles, following
257  * drm_gem_object_handle_free - release resources bound to userspace handles
425  * drop it before returning. Used to avoid races in establishing new handles
429  * when userspace closes @file_priv for all attached handles, or through the
430  * GEM_CLOSE ioctl for individual handles.
549  * This function is idempotent and handles an already allocated mmap offset
761  * drm_gem_objects_lookup - look up GEM objects from an array of handles
767  * Takes an array of userspace handles and returns a newly allocated array of
782 	u32 *handles;
795 	handles = kvmalloc_array(count, sizeof(u32), GFP_KERNEL);
796 	if (!handles) {
801 	if (copy_from_user(handles, bo_handles, count * sizeof(u32))) {
803 		DRM_DEBUG("Failed to copy in GEM handles\n");
807 	ret = objects_lookup(filp, handles, count, objs);
809 	kvfree(handles);
820  * If looking up an array of handles, use drm_gem_objects_lookup().