• David Sterba's avatar
    btrfs: prepare for extensions in compression options · a7164fa4
    David Sterba authored
    This is a minimal patch intended to be backported to older kernels.
    We're going to extend the string specifying the compression method and
    this would fail on kernels before that change (the string is compared
    exactly).
    
    Relax the string matching only to the prefix, ie. ignoring anything that
    goes after "zlib" or "lzo", regardless of th format extension we decide
    to use. This applies to the mount options and properties.
    
    That way, patched old kernels could be booted on systems already
    utilizing the new compression spec.
    
    Applicable since commit 63541927, v3.14.
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    a7164fa4
super.c 63.3 KB