Return inode usage information for volumes mounted on this minion

    CLI Example:

    .. code-block:: bash

        salt '*' disk.inodeusage

def inodeusage(args=None):
    '''
    Return inode usage information for volumes mounted on this minion

    CLI Example:

    .. code-block:: bash

        salt '*' disk.inodeusage
    '''
    flags = _clean_flags(args, 'disk.inodeusage')
    if __grains__['kernel'] == 'AIX':
        cmd = 'df -i'
    else:
        cmd = 'df -iP'
    if flags:
        cmd += ' -{0}'.format(flags)
    ret = {}
    out = __salt__['cmd.run'](cmd, python_shell=False).splitlines()
    for line in out:
        if line.startswith('Filesystem'):
            continue
        comps = line.split()
        # Don't choke on empty lines
        if not comps:
            continue

        try:
            if __grains__['kernel'] == 'OpenBSD':
                ret[comps[8]] = {
                    'inodes': int(comps[5]) + int(comps[6]),
                    'used': comps[5],
                    'free': comps[6],
                    'use': comps[7],
                    'filesystem': comps[0],
                }
            elif __grains__['kernel'] == 'AIX':
                ret[comps[6]] = {
                    'inodes': comps[4],
                    'used': comps[5],
                    'free': comps[2],
                    'use': comps[5],
                    'filesystem': comps[0],
                }
            else:
                ret[comps[5]] = {
                    'inodes': comps[1],
                    'used': comps[2],
                    'free': comps[3],
                    'use': comps[4],
                    'filesystem': comps[0],
                }
        except (IndexError, ValueError):
            log.error('Problem parsing inode usage information')
            ret = {}
    return ret