diff options
author | David Sterba <dsterba@suse.cz> | 2015-04-14 17:37:23 +0200 |
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committer | David Sterba <dsterba@suse.cz> | 2015-04-14 17:41:27 +0200 |
commit | 7ffccaf0c3b4d4979d7d74bab3d79d9541a6e665 (patch) | |
tree | 1d64b306503787588d0d79ab467b95f8c6a83c99 /Documentation/btrfstune.asciidoc | |
parent | 32ca2fa502c0a00a7dc40adbdae2e7b7765e6d63 (diff) |
btrfs-progs: Documentaion: rename to .asciidoc
A few minor benefits:
* editors set highliting according to the extensions
* web access to the git repository (github) renders the .asciidoc
files:
* we can link to them from the wiki
* the files are editable via browser and such editations can be
submitted for merge easily
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'Documentation/btrfstune.asciidoc')
-rw-r--r-- | Documentation/btrfstune.asciidoc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/btrfstune.asciidoc b/Documentation/btrfstune.asciidoc new file mode 100644 index 00000000..96202211 --- /dev/null +++ b/Documentation/btrfstune.asciidoc @@ -0,0 +1,44 @@ +btrfstune(8) +============ + +NAME +---- +btrfstune - tune various btrfs filesystem parameters + +SYNOPSIS +-------- +*btrfstune* [options] <dev> [<dev>...] + +DESCRIPTION +----------- +*btrfstune* is used to tune various btrfs filesystem parameters,you can +enable/disable some extended features for btrfs. + +OPTIONS +------- +-S <value>:: +Updates the seeding value. +A positive value will enable seeding, zero will disable seeding, negtive is not allowed. +Enable seeding 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. +-f:: +Allow dangerous changes, e.g. clear the seeding flag. Make sure that you are +aware of the dangers. + +When mounting the new device, btrfs will check whether the seeding flag is set +when try to open seeding device. If the user clears the seeding flag of the +seeding device, the new device will not be mountable. Even setting the seeding +flag back will not fix this problem, because the generation will be changed at +that time. Clear the seeding flag may damage the new filesystem. + +EXIT STATUS +----------- +*btrfstune* will return 0 if no error happened. +If any problems happened, 1 will be returned. + +SEE ALSO +-------- +`mkfs.btrfs`(8) |