[libvirt] [PATCH] RFC: Add blockdev-delete QMP command
Ian Main
imain at redhat.com
Tue Feb 11 18:38:12 UTC 2014
On Mon, Feb 10, 2014 at 10:05:54AM -0700, Eric Blake wrote:
> On 02/07/2014 04:15 PM, Ian Main wrote:
> > This is the sister command to blockdev-add. In Fam's example he uses
> > the drive_del HMP command to clean up but when trying to do this via
> > libvirt it doesn't work. This command seems to be needed in order to
> > perform proper cleanup.
> >
> > Signed-off-by: Ian Main <imain at redhat.com>
> > ---
> > blockdev.c | 52 ++++++++++++++++++++++++++++++++++++++--------------
> > qapi-schema.json | 11 +++++++++++
> > qmp-commands.hx | 30 ++++++++++++++++++++++++++++++
> > 3 files changed, 79 insertions(+), 14 deletions(-)
> >
>
> > +SQMP
> > +blockdev-delete
> > +------------
> > +
> > +Remove host block device. The result is that guest generated IO is no
>
> > +Example (1):
> > +
> > +-> { "execute": "blockdev-snapshot-delete-internal-sync",
> > + "arguments": { "device": "target0" }
>
> Wrong example.
Ah, good catch, thanks.
> But indeed having the ability to drop things in QMP would be nice.
>
> In RHEL, libvirt is using a downstream __com.redhat_drive_del before
> falling back to upstream HMP drive_del, so how does this differ from
> drive_del or the RHEL downstream command?
It really doesn't differ except that it's available via QMP.
Ian
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