bcachefs: Fix for cmd_list_journal

cmd_list_journal wasn't correctly listing the most recent journal
entries as blacklisted - because in the recovery path when just reading
the journal, we were failing to add those to the blacklist table.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

fs/bcachefs/recovery.c

@@ -1175,9 +1175,6 @@ int bch2_fs_recovery(struct bch_fs *c)
 		blacklist_seq = journal_seq = le64_to_cpu(clean->journal_seq) + 1;
 	}
 
-	if (c->opts.read_journal_only)
-		goto out;
-
 	if (c->opts.reconstruct_alloc) {
 		c->sb.compat &= ~(1ULL << BCH_COMPAT_alloc_info);
 		drop_alloc_keys(&c->journal_keys);
@@ -1208,6 +1205,13 @@ int bch2_fs_recovery(struct bch_fs *c)
 		}
 	}
 
+	/*
+	 * note: cmd_list_journal needs the blacklist table fully up to date so
+	 * it can asterisk ignored journal entries:
+	 */
+	if (c->opts.read_journal_only)
+		goto out;
+
 	ret = bch2_fs_journal_start(&c->journal, journal_seq);
 	if (ret)
 		goto err;