Re: [PATCH 08/14] perf report: Cache cumulative callchains

Rodrigo Campos
2013-11-01T15:16:26Z

On Fri, Nov 01, 2013 at 04:07:22PM +0900, Namhyung Kim wrote:
> Hi Rodrigo,
>
> On Thu, 31 Oct 2013 11:13:34 +0000, Rodrigo Campos wrote:
> > On Thu, Oct 31, 2013 at 03:56:10PM +0900, Namhyung Kim wrote:
>
> I think the right fix is assigning "iter->priv = NULL" as you said. But
> I changed this patch a bit for v3 so need to check it again.

Btw, that would have a race condition if this is run on multiple threads (I
mean, if different threads can free the same "iter->prev" pointer), at least if
we do it just assigning NULL after the free(). But maybe that's not an issue ?

Thanks a lot,
Rodrigo