On Monday, 13 September, 2010, David Nicol wrote:
> https://btrfs.wiki.kernel.org/index.php/Category:Documentation does
> not mention any btrfs command. the btrfsctl command has the -c sync
> tool, and the tools for creating and deleting snapshots and
> subvolumes, so it seems that unless this btrfs program does all of
> that I have amended the right tool to provide a command line access to
> a new ioctl that waits for deleted subvolume cleanups to finish.
$ /sbin/btrfs help
Usage:
btrfs subvolume snapshot <source> [<dest>/]<name>
Create a writable snapshot of the subvolume <source> with
the name <name> in the <dest> directory.
btrfs subvolume delete <subvolume>
Delete the subvolume <subvolume>.
btrfs subvolume create [<dest>/]<name>
Create a subvolume in <dest> (or the current directory if
not passed).
btrfs subvolume list <path>
List the snapshot/subvolume of a filesystem.
btrfs subvolume find-new <path> <last_gen>
List the recently modified files in a filesystem.
btrfs filesystem defragment [-vcf] [-s start] [-l len] [-t size]
<file>|<dir> [<file>|<dir>...]
Defragment a file or a directory.
btrfs subvolume set-default <id> <path>
Set the subvolume of the filesystem <path> which will be
mounted
as default.
btrfs filesystem sync <path>
Force a sync on the filesystem <path>.
btrfs filesystem resize [+/-]<newsize>[gkm]|max <filesystem>
Resize the file system. If 'max' is passed, the filesystem
will occupe all available space on the device.
btrfs filesystem show [<uuid>|<label>]
Show the info of a btrfs filesystem. If no <uuid> or <label>
is passed, info of all the btrfs filesystem are shown.
btrfs filesystem df <path>
Show space usage information for a mount point
.
btrfs filesystem balance <path>
Balance the chunks across the device.
btrfs device scan [<device> [<device>..]
Scan all device for or the passed device for a btrfs
filesystem.
btrfs device add <dev> [<dev>..] <path>
Add a device to a filesystem.
btrfs device delete <dev> [<dev>..] <path>
Remove a device from a filesystem.
btrfs help|--help|-h
Show the help.
Btrfs Btrfs v0.19
>
> Nothing on https://btrfs.wiki.kernel.org/index.php/Btrfsctl says
> anything about deprecation or obsolescence.
>
> On Mon, Sep 13, 2010 at 12:23 PM, Goffredo Baroncelli
> <kreij...@gmail.com> wrote:
> > Hi David,
> >
> > please don't do that. "btrfsctl" is obsolete, now the develop should
involve
> > the "btrfs" command.
> > I you need help in updating the "btrfs" command source files, don't
hesitate
> > to contact me.
> >
> > Regards
> > G.Baroncelli
>
>
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