Update Linux kernel to current glibc soft-fp

[Joseph Myers]

On Tue, 19 May 2015, Richard Henderson wrote:

> On 05/15/2015 07:47 AM, Joseph Myers wrote:
> > * Boot the new kernel on a system (physical or virtual) where the
> >   emulation code will be used, and run the glibc math/ tests (glibc
> >   built for hard-float) on that system, making sure the results are no
> >   worse than for an old kernel (that is, that no failures appear that
> >   seem likely to be related to the changes; if your existing baseline
> >   has some libm test failures, that means looking in more detail at
> >   *which* individual tests in test-float, test-double, test-ldouble
> >   are failing before and after the kernel patch, to make sure it isn't
> >   introducing such failures).  If you see such failures, again, either
> >   debug and fix them or report them to me (though instrumenting the
> >   relevant functions to track down which operation's results are
> >   changing may help a lot in finding where the problem it).
> 
> Success, given the following additional patch.

Thanks.  That patch is OK for glibc soft-fp/op-common.h, please commit.  
I'll update the Linux kernel patch, retest for powerpc and submit for 
kernel inclusion.

-- 
Joseph S. Myers
joseph@codesourcery.com