[libvirt] [PATCH] virsh-volume: add support for --reflink

[Chen, Hanxiao]

> -----Original Message-----
> From: John Ferlan [mailto:jferlan at redhat.com]
> Sent: Monday, February 02, 2015 7:52 PM
> To: Chen, Hanxiao/陈 晗霄; libvir-list at redhat.com
> Subject: Re: [libvirt] [PATCH] virsh-volume: add support for --reflink
> 
> 
> 
> On 02/01/2015 10:14 PM, Chen Hanxiao wrote:
> > add support for --reflink to specify
> > VIR_STORAGE_VOL_CREATE_REFLINK flag.
> >
> > Signed-off-by: Chen Hanxiao <chenhanxiao at cn.fujitsu.com>
> > ---
> >  tools/virsh-volume.c | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >
> 
> What about the man page (virsh.pod) to describe --reflink?
> 

I'll add a man-page patch and resend it.

Thanks,
- Chen

> 
> > diff --git a/tools/virsh-volume.c b/tools/virsh-volume.c
> > index d585ee2..db94154 100644
> > --- a/tools/virsh-volume.c
> > +++ b/tools/virsh-volume.c
> > @@ -204,6 +204,7 @@ cmdVolCreateAs(vshControl *ctl, const vshCmd *cmd)
> >
> >      if (vshCommandOptBool(cmd, "prealloc-metadata"))
> >          flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
> > +
> >      if (!(pool = vshCommandOptPool(ctl, cmd, "pool", NULL)))
> >          return false;
> >
> > @@ -378,6 +379,7 @@ cmdVolCreate(vshControl *ctl, const vshCmd *cmd)
> >
> >      if (vshCommandOptBool(cmd, "prealloc-metadata"))
> >          flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
> > +
> >      if (!(pool = vshCommandOptPool(ctl, cmd, "pool", NULL)))
> >          return false;
> >
> > @@ -441,6 +443,10 @@ static const vshCmdOptDef opts_vol_create_from[] = {
> >       .type = VSH_OT_BOOL,
> >       .help = N_("preallocate metadata (for qcow2 instead of full allocation)")
> >      },
> > +    {.name = "reflink",
> > +     .type = VSH_OT_BOOL,
> > +     .help = N_("use btrfs COW lightweight copy")
> > +    },
> >      {.name = NULL}
> >  };
> >
> > @@ -460,6 +466,9 @@ cmdVolCreateFrom(vshControl *ctl, const vshCmd *cmd)
> >      if (vshCommandOptBool(cmd, "prealloc-metadata"))
> >          flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
> >
> > +    if (vshCommandOptBool(cmd, "reflink"))
> > +        flags |= VIR_STORAGE_VOL_CREATE_REFLINK;
> > +
> >      if (vshCommandOptStringReq(ctl, cmd, "file", &from) < 0)
> >          goto cleanup;
> >
> > @@ -554,6 +563,10 @@ static const vshCmdOptDef opts_vol_clone[] = {
> >       .type = VSH_OT_BOOL,
> >       .help = N_("preallocate metadata (for qcow2 instead of full allocation)")
> >      },
> > +    {.name = "reflink",
> > +     .type = VSH_OT_BOOL,
> > +     .help = N_("use btrfs COW lightweight copy")
> > +    },
> >      {.name = NULL}
> >  };
> >
> > @@ -574,6 +587,9 @@ cmdVolClone(vshControl *ctl, const vshCmd *cmd)
> >      if (vshCommandOptBool(cmd, "prealloc-metadata"))
> >          flags |= VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA;
> >
> > +    if (vshCommandOptBool(cmd, "reflink"))
> > +        flags |= VIR_STORAGE_VOL_CREATE_REFLINK;
> > +
> >      origpool = virStoragePoolLookupByVolume(origvol);
> >      if (!origpool) {
> >          vshError(ctl, "%s", _("failed to get parent pool"));
> >