• Josef Bacik's avatar
    btrfs: remove WARN_ON in log_dir_items · 2cc83342
    Josef Bacik authored
    When Filipe added the recursive directory logging stuff in
    2f2ff0ee
    
     ("Btrfs: fix metadata inconsistencies after directory
    fsync") he specifically didn't take the directory i_mutex for the
    children directories that we need to log because of lockdep.  This is
    generally fine, but can lead to this WARN_ON() tripping if we happen to
    run delayed deletion's in between our first search and our second search
    of dir_item/dir_indexes for this directory.  We expect this to happen,
    so the WARN_ON() isn't necessary.  Drop the WARN_ON() and add a comment
    so we know why this case can happen.
    
    CC: stable@vger.kernel.org # 4.4+
    Reviewed-by: default avatarFilipe Manana <fdmanana@suse.com>
    Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    2cc83342