On Wed, Apr 27, 2016 at 05:16:45PM +0800, Pan Xinhui wrote: > From: Pan Xinhui <xinhui....@linux.vnet.ibm.com> > > Implement xchg{u8,u16}{local,relaxed}, and > cmpxchg{u8,u16}{,local,acquire,relaxed}. > > It works on all ppc. > > remove volatile of first parameter in __cmpxchg_local and __cmpxchg > > Suggested-by: Peter Zijlstra (Intel) <pet...@infradead.org> > Signed-off-by: Pan Xinhui <xinhui....@linux.vnet.ibm.com>
Generally has the right shape; and I trust others to double check the ppc-asm minutia. Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org>