[PATCH] ocfs2: use generic_segment_checks

	return total ? total : ret;

}

static int ocfs2_check_iovec(const struct iovec *iov, size_t *counted,

			     unsigned long *nr_segs)

{

	size_t ocount;		/* original count */

	unsigned long seg;

	ocount = 0;

	for (seg = 0; seg < *nr_segs; seg++) {

		const struct iovec *iv = &iov[seg];

		/*

		 * If any segment has a negative length, or the cumulative

		 * length ever wraps negative then return -EINVAL.

		 */

		ocount += iv->iov_len;

		if (unlikely((ssize_t)(ocount|iv->iov_len) < 0))

			return -EINVAL;

		if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len))

			continue;

		if (seg == 0)

			return -EFAULT;

		*nr_segs = seg;

		ocount -= iv->iov_len;	/* This segment is no good */

		break;

	}

	*counted = ocount;

	return 0;

}

static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,

				    const struct iovec *iov,

				    unsigned long nr_segs,

	if (iocb->ki_left == 0)

		return 0;

	ret = ocfs2_check_iovec(iov, &ocount, &nr_segs);

	ret = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);

	if (ret)

		return ret;