On Tue, Aug 13, 2013 at 02:38:05PM -0500, Eric Sandeen wrote:
> > +. ./common/rc
> > +. ./common/filter
> > +
> > +# real QA test starts here
> > +_supported_fs btrfs
> > +_supported_os Linux
> > +_require_scratch
> > +
> > +_scratch_mkfs > /dev/null 2>&1
> > +_scratch_mount
> > +
> > +# This will be set to subvolid 256. If this ever changes in the future for
> > +# whatever reason we'll have to pull the subvolid out of the subvol list command
> > +# but since it's a newly mkfs'ed fs we should be fine with this.
>
> . . . and then you grab it out of the subvol list command anyway ;)
>
> So really this comment should go, and it sure would be nice to have
> a btrfs_get_subvolid() helper for future generations...
This is available in the 'btrfs subvol show /subvol':
# btrfs subvol show subv1
/mnt/a15/subv1
Name: subv1
uuid: cf010ad0-38bf-7a42-88be-3360f68cd335
Parent uuid: e6543f70-5d38-1845-b976-d18095860bdf
Creation time: 2013-08-29 15:18:18
Object ID: 258
Generation (Gen): 6
Gen at creation: 6
Parent: 5
Top Level: 5
Flags: readonly
Snapshot(s):
Though it involves grep as well.
david
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