353 static ssize_t kernel_readv(struct file *file, const struct kvec *vec,  in kernel_readv()  argument
363 	res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos, 0);  in kernel_readv()
389 	struct kvec *vec, __vec[PIPE_DEF_BUFFERS];  in default_file_splice_read()  local
415 	vec = __vec;  in default_file_splice_read()
417 		vec = kmalloc(nr_pages * sizeof(struct kvec), GFP_KERNEL);  in default_file_splice_read()
418 		if (unlikely(!vec)) {  in default_file_splice_read()
429 		vec[i].iov_base = page_address(pages[i]) + offset;  in default_file_splice_read()
430 		vec[i].iov_len = this_len;  in default_file_splice_read()
435 	res = kernel_readv(in, vec, nr_pages, *ppos);  in default_file_splice_read()
441 	if (vec != __vec)  in default_file_splice_read()
442 		kfree(vec);  in default_file_splice_read()