[patch 1/4] powerpc: fix for OProfile callgraph for Power 64 bit user apps

[Paul Mackerras]

Michael Ellerman writes:

> __copy_from_user_inatomic() accepts any value for n, it just has a
> special case for 1, 2, 4 and 8 - but it should still work for other
> values.

There is a bug in __copy_from_user_inatomic that

http://patchwork.ozlabs.org/linuxppc/patch?id=18418

fixes, and I'm about to send that Linus-wards.

Carl, to what extent does that fix eliminate the need for the changes
in your patch?

Paul.