NAME

       btrfstune - tune various filesystem parameters.

SYNOPSIS

       btrfstune [options] <mnt>

DESCRIPTION

       btrfstune  is  used  to  tune  various  filesystem  parameters,you can enable/disable some
       extended features for btrfs.

       Options

       -S <value>
            updates the seeding value, it forces a fs readonly so that you can use  it  to  build
            other filesystems.

       -r   enable extended inode refs.

       -x   enable skinny metadata extent refs.

EXIT CODE

       btrfstune  will  return  0  if  no  error  happened.   If any problems happened, 1 will be
       returned.

AUTHOR

       Written by Shilong Wang and Wenruo Qu.

COPYRIGHT

       Copyright   ©   2013   Fujitsu,   Inc.     License    GPLv2:    GNU    GPL    version    2
       <http://gnu.org/licenses/gpl.html>.
       This  is  free  software:  you  are  free   to  change  and  redistribute  it. There is NO
       WARRANTY, to the extent permitted by law.

SEE ALSO

       mkfs.btrfs(8)

                                                                                     BTRFSTUNE(8)