fs: mark expected switch fall-throughs

[linux.git] / fs / btrfs / volumes.h

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 3ad9d58d1b6618aea5d79220e48fdf98ac243360..adcbb4e7b1a03df26578eab4533e408f27780179 100644 (file)
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -390,6 +390,7 @@ static inline enum btrfs_map_op btrfs_op(struct bio *bio)
                return BTRFS_MAP_WRITE;
        default:
                WARN_ON_ONCE(1);
+               /* fall through */
        case REQ_OP_READ:
                return BTRFS_MAP_READ;
        }