powerpc: Fix DSCR inheritance over fork()

[Michael Ellerman]

On Wed, 2015-09-12 at 09:11:47 UTC, Anton Blanchard wrote:
> Two DSCR tests have a hack in them:
> 
> 	/*
> 	 * XXX: Force a context switch out so that DSCR
> 	 * current value is copied into the thread struct
> 	 * which is required for the child to inherit the
> 	 * changed value.
> 	 */
> 	sleep(1);
> 
> We should not be working around this in the testcase, it is a kernel bug.
> Fix it by copying the current DSCR to the child, instead of what we
> had in the thread struct at last context switch.
> 
> Signed-off-by: Anton Blanchard <anton at samba.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/db1231dcdb4dc6cdcbdef0ba

cheers