bcachefs: Always write a journal entry when stopping journal

This is to fix a (harmless) bug where the read clock hand in the
superblock doesn't match the journal.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/journal.c

@@ -979,9 +979,11 @@ void bch2_fs_journal_stop(struct journal *j)
 
 	wait_event(j->wait, journal_entry_close(j));
 
-	/* do we need to write another journal entry? */
-	if (test_bit(JOURNAL_NOT_EMPTY, &j->flags))
-		bch2_journal_meta(j);
+	/*
+	 * Always write a new journal entry, to make sure the clock hands are up
+	 * to date (and match the superblock)
+	 */
+	bch2_journal_meta(j);
 
 	journal_quiesce(j);