access_ok
if (!access_ok(VERIFY_WRITE,
if (!access_ok(VERIFY_READ,
if (unlikely(!access_ok(urelocs, remain*sizeof(*urelocs)))) {
if (!access_ok(VERIFY_READ, addr, size))
if (!access_ok(VERIFY_READ, user, nfences * sizeof(*user)))
if (!access_ok(args->flags & I915_USERPTR_READ_ONLY ? VERIFY_READ : VERIFY_WRITE,
if (!access_ok(VERIFY_READ, regs, n_regs * sizeof(u32) * 2))
if (!access_ok(VERIFY_WRITE, u64_to_user_ptr(query_item->data_ptr),