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Re: [Qemu-devel] [Qemu-block] [PATCH] block: fix memory leak in early ex
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [Qemu-block] [PATCH] block: fix memory leak in early exit |
Date: |
Fri, 16 Oct 2015 10:37:17 +0200 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
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 <address@hidden> 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 <address@hidden>
> > Cc: Jeff Cody <address@hidden>
> > Signed-off-by: Stefan Hajnoczi <address@hidden>
>
> 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 <address@hidden>
Kevin, please take Alberto's patch instead of mine. The Message-ID is:
address@hidden
BTW, I notice that Jeff isn't listed as maintainer for block/stream.c.
So according to MAINTAINERS this patch goes through you.
Stefan