[2/3] powerpc: Avoid load hit store in setup_sigcontext()

[Michael Ellerman]

On Sun, 2016-29-05 at 12:03:51 UTC, Anton Blanchard wrote:
> From: Anton Blanchard <anton at samba.org>
> 
> In setup_sigcontext(), we set current->thread.vrsave then use it
> straight after. Since current is hidden from the compiler via inline
> assembly, it cannot optimise this and we end up with a load hit store.
> 
> Fix this by using a temporary.
> 
> Signed-off-by: Anton Blanchard <anton at samba.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/d96f234f47aff593538f9e3d67

cheers