NILFS_SEGMENT_USAGE_FNS  616 include/uapi/linux/nilfs2_ondisk.h NILFS_SEGMENT_USAGE_FNS(DIRTY, dirty)
NILFS_SEGMENT_USAGE_FNS  617 include/uapi/linux/nilfs2_ondisk.h NILFS_SEGMENT_USAGE_FNS(ERROR, error)