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Re: [Qemu-stable] [Qemu-block] [PATCH for-2.4] block: keep bitmap if inc


From: Stefan Hajnoczi
Subject: Re: [Qemu-stable] [Qemu-block] [PATCH for-2.4] block: keep bitmap if incremental backup job is cancelled
Date: Fri, 26 Jun 2015 10:57:56 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

On Thu, Jun 25, 2015 at 12:33:25PM -0400, Jeff Cody wrote:
> 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

Thanks!

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