Re: [V4] powerpc: Implement {cmp}xchg for u8 and u16

From: Michael Ellerman
Date: Thu Nov 24 2016 - 19:04:31 EST


On Wed, 2016-04-27 at 09:16:45 UTC, xinhui wrote:
> From: Pan Xinhui <xinhui.pan@xxxxxxxxxxxxxxxxxx>
>
> 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) <peterz@xxxxxxxxxxxxx>
> Signed-off-by: Pan Xinhui <xinhui.pan@xxxxxxxxxxxxxxxxxx>
> Acked-by: Boqun Feng <boqun.feng@xxxxxxxxx>
> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/d0563a1297e234ed37f6b51c2e9321

cheers