} else {
/*Handle frame buffer allocated in user space*/
mutex_unlock(&bo->mutex);
- down_read(¤t->mm->mmap_sem);
- page_nr = get_user_pages((unsigned long)userptr,
- (int)(bo->pgnr), 1, pages, NULL);
- up_read(¤t->mm->mmap_sem);
+ page_nr = get_user_pages_fast((unsigned long)userptr,
+ (int)(bo->pgnr), 1, pages);
mutex_lock(&bo->mutex);
bo->mem_type = HMM_BO_MEM_TYPE_USER;
}