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Re: [Qemu-devel] [PATCH for-2.4] block: keep bitmap if incremental backu


From: Jeff Cody
Subject: Re: [Qemu-devel] [PATCH for-2.4] block: keep bitmap if incremental backup job is cancelled
Date: Thu, 25 Jun 2015 12:33:25 -0400
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, Jun 25, 2015 at 12:30:56PM -0400, John Snow wrote:
> 
> 
> On 06/25/2015 08:53 AM, Stefan Hajnoczi wrote:
> > Reclaim the dirty bitmap if an incremental backup block job is
> > cancelled.  The ret variable may be 0 when the job is cancelled so it's
> > not enough to check ret < 0.
> > 
> > Reviewed-by: John Snow <address@hidden>
> > Reviewed-by: Max Reitz <address@hidden>
> > Signed-off-by: Stefan Hajnoczi <address@hidden>
> > ---
> >  block/backup.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/block/backup.c b/block/backup.c
> > index 4a1af68..ddf8424 100644
> > --- a/block/backup.c
> > +++ b/block/backup.c
> > @@ -431,7 +431,7 @@ static void coroutine_fn backup_run(void *opaque)
> >  
> >      if (job->sync_bitmap) {
> >          BdrvDirtyBitmap *bm;
> > -        if (ret < 0) {
> > +        if (ret < 0 || block_job_is_cancelled(&job->common)) {
> >              /* Merge the successor back into the parent, delete nothing. */
> >              bm = bdrv_reclaim_dirty_bitmap(bs, job->sync_bitmap, NULL);
> >              assert(bm);
> > 
> 
> Didn't Jeff Cody already stage this?

Yes



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