/* helper function to extract extent size hint from inode  */
xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip)
/* helper function to extract extent size hint from inode  */
xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip)
{
	xfs_extlen_t		extsz;
	if (unlikely(XFS_IS_REALTIME_INODE(ip))) {
		extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
				? ip->i_d.di_extsize
				: ip->i_mount->m_sb.sb_rextsize;
		ASSERT(extsz);
	} else {
		extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE)
				? ip->i_d.di_extsize : 0;
	}
	return extsz;
}