EXT3_FEATURE_INCOMPAT_JOURNAL_DEV  480 include/linux/ext2_fs.h #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x0008
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV  579 include/linux/ext3_fs.h #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x0008 /* Journal device */