JBD2_KNOWN_ROCOMPAT_FEATURES 1419 fs/jbd2/journal.c 		     ~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) ||
JBD2_KNOWN_ROCOMPAT_FEATURES 1568 fs/jbd2/journal.c 	    (ro       & JBD2_KNOWN_ROCOMPAT_FEATURES) == ro &&