Nicholas Piggin <npig...@gmail.com> writes: > On Mon, 14 Aug 2017 15:21:48 +1000 > Michael Ellerman <m...@ellerman.id.au> wrote: > >> Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> writes: > >> > arch/powerpc/include/asm/vas.h | 35 ++++ >> > arch/powerpc/include/uapi/asm/vas.h | 25 +++ >> >> I thought we weren't exposing VAS to userspace yet? >> >> If we are then we need to get things straight WRT copy/paste abort. > > No we should not be. This might be just a leftover hunk that should > be moved to a future series. > > At the moment (as far as I understand) it should be limited to > preempt-disabled, process context, kernel users which avoids any > concern for switch_to.
I think that comment applied to a previous version, see patch 16. cheers
