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Re: [Qemu-devel] [PATCH v4 6/7] commit: remove unused check


From: Fam Zheng
Subject: Re: [Qemu-devel] [PATCH v4 6/7] commit: remove unused check
Date: Tue, 8 Oct 2013 17:32:12 +0800
User-agent: Mutt/1.5.21 (2010-09-15)

On Mon, 09/30 14:17, Paolo Bonzini wrote:
> Il 30/09/2013 14:02, Fam Zheng ha scritto:
> > We support top == active for commit now, remove the check which is dead
> > code now.
> > 
> > Signed-off-by: Fam Zheng <address@hidden>
> > ---
> >  block/commit.c | 7 -------
> >  1 file changed, 7 deletions(-)
> > 
> > diff --git a/block/commit.c b/block/commit.c
> > index ac4b7cc..086f8c9 100644
> > --- a/block/commit.c
> > +++ b/block/commit.c
> > @@ -198,13 +198,6 @@ void commit_start(BlockDriverState *bs, 
> > BlockDriverState *base,
> >          return;
> >      }
> >  
> > -    /* Once we support top == active layer, remove this check */
> > -    if (top == bs) {
> > -        error_setg(errp,
> > -                   "Top image as the active layer is currently 
> > unsupported");
> > -        return;
> > -    }
> > -
> >      if (top == base) {
> >          error_setg(errp, "Invalid files for merge: top and base are the 
> > same");
> >          return;
> > 
> 
> Perhaps this could even become an assertion, or it could take care of
> calling commit_active_start?
> 

Good idea. I'll make it an assertion.

Thanks,
Fam



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