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Date: Fri, 16 Oct 2015 10:37:17 +0200
From: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20151016083717.GC7432@stefanha-thinkpad.redhat.com>
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Subject: Re: [Qemu-devel] [Qemu-block] [PATCH] block: fix memory leak in
	early exit
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To: Kevin Wolf <kwolf@redhat.com>
Cc: Alberto Garcia <berto@igalia.com>, Jeff Cody <jcody@redhat.com>, Fam Zheng <famz@redhat.com>, qemu-devel@nongnu.org, qemu-block@nongnu.org

On Fri, Oct 16, 2015 at 08:58:12AM +0200, Alberto Garcia wrote:
> On Thu 15 Oct 2015 05:54:27 PM CEST, Stefan Hajnoczi <stefanha@redhat.com> wrote:
> > The stream block job has two early exit code paths.  They do not free
> > s->backing_file_str.
> >
> > Also, the early exits rely on the fact that the coroutine hasn't yielded
> > yet and was launched from the main thread.  Therefore the coroutine is
> > guaranteed to be running in the main thread where block_job_completed()
> > may be called safely.  This is very subtle so it's nice to eliminate the
> > assumption by unifying the early exit with the normal exit code path.
> >
> > Cc: Fam Zheng <famz@redhat.com>
> > Cc: Jeff Cody <jcody@redhat.com>
> > Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> 
> I had a slightly simpler version of this in my intermediate block
> streaming series in case you're interested:
> 
>    https://patchwork.ozlabs.org/patch/471881/
> 
> But this one looks good to me too, so:
> 
> Reviewed-by: Alberto Garcia <berto@igalia.com>

Kevin, please take Alberto's patch instead of mine.  The Message-ID is:

  d575a576c18d8972ac1a200c4022b39cbbce2507.1435008395.git.berto@igalia.com

BTW, I notice that Jeff isn't listed as maintainer for block/stream.c.
So according to MAINTAINERS this patch goes through you.

Stefan