[lvm-devel] [PATCH 4/6] Add pv->vg to solidify link between a pv and a vg.

[Alasdair G Kergon]

On Thu, Apr 01, 2010 at 05:57:30PM -0400, Dave Wysochanski wrote:
> lvm2app needs a link back to the vg in order to use the vg handle for
> memory allocations as well as other things.  This patch adds the field
> to struct physical_volume, and sets the field when returning from
> vg_read() internal library call.
 
> +	struct volume_group *vg; /* FIXME: Only valid when used with lvm2app. */

Please make it generally applicable and always internally consistent i.e.
always pointing back to the VG struct which contains the list it is on.

Also update vg_validate whenever extending the core metadata structs.

Alasdair