6 btrfstune - tune various btrfs filesystem parameters
10 'btrfstune' [options] <dev> [<dev>...]
14 'btrfstune' is used to tune various btrfs filesystem parameters,you can
15 enable/disable some extended features for btrfs.
20 Updates the seeding value, it forces a fs readonly so that you can use it to
21 build other filesystems.
23 Enable extended inode refs.
25 Enable skinny metadata extent refs.
30 'btrfstune' will return 0 if no error happened.
31 If any problems happened, 1 will be returned.
35 Written by Shilong Wang and Wenruo Qu.
39 Copyright (C) 2013 FUJITSU LIMITED.
41 License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
43 This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.