clean up address limit helpers v2

[Christoph Hellwig]

On Thu, Jul 16, 2020 at 04:49:24PM -0700, Andrew Morton wrote:
> On Tue, 14 Jul 2020 12:54:59 +0200 Christoph Hellwig <hch at lst.de> wrote:
> 
> > Hi all,
> > 
> > in preparation for eventually phasing out direct use of set_fs(), this
> > series removes the segment_eq() arch helper that is only used to
> > implement or duplicate the uaccess_kernel() API, and then adds
> > descriptive helpers to force the kernel address limit.
> > 
> > 
> > Changes since v1:
> >  - drop to incorrect hunks
> >  - fix a commit log typo
> 
> I think this *is* v1.  I can't find any differences in the patches and I
> was unable to eyeball any changelog alterations?

No, this actuall is v2.

"[PATCH 5/6] uaccess: add force_uaccess_{begin,end} helpers" dropped
two incorrect hunks in the m68k and sh arch code, and lost and "er"
in the commit log.