• Qu Wenruo's avatar
    btrfs: Introduce fs_info to extent_io_tree · c258d6e3
    Qu Wenruo authored
    
    
    This patch will add a new member fs_info to extent_io_tree.
    
    This provides the basis for later trace events to distinguish the output
    between different btrfs filesystems. While this increases the size of
    the structure, we want to know the source of the trace events and
    passing the fs_info as an argument to all contexts is not possible.
    
    The selftests are now allowed to set it to NULL as they don't use the
    tracepoints.
    
    Signed-off-by: default avatarQu Wenruo <wqu@suse.com>
    Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    c258d6e3