[PATCH] tell gcc optimizer to never introduce new data races

[Marek Polacek]

On Tue, Jun 10, 2014 at 04:53:27PM +0200, Peter Zijlstra wrote:
> On Tue, Jun 10, 2014 at 03:23:36PM +0200, Jiri Kosina wrote:
> > +# Tell gcc to never replace conditional load with a non-conditional one
> > +KBUILD_CFLAGS	+= $(call cc-option,--param allow-store-data-races=0)
> > +
> 
> Why do we not want: -fmemory-model=safe? And should we not at the very
> least also disable packed-store-data-races?

Note that the option does not exist, even though it is mentioned in the
documentation.

	Marek