def get_fs_of_path(fs_mntpnt, path):
    """ tell what is the gpfs filesystem for input path

      return: either of the following:
        - filesystem name of given path
        - False (if path is not under any gpfs filesystem)
    """

    for fs in fs_mntpnt:
        if path.startswith(fs_mntpnt[fs]):
            return fs

    return False