Re: [PATCH -tip] x86/mce: Use atomic_inc_return barrier when starting monad sync
From: Borislav Petkov
Date: Wed Mar 23 2016 - 04:30:31 EST
On Mon, Mar 21, 2016 at 04:19:56PM -0700, Davidlohr Bueso wrote:
> mce_start() has an explicit smp_wmb to serialize writes to
> global_nwo and mce_callin. However, atomic_inc_return() implies
> barriers on both sides of the call, as such simply rely on this
> full smp barrier.
> Signed-off-by: Davidlohr Bueso <dbueso@xxxxxxx>
> arch/x86/kernel/cpu/mcheck/mce.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
ECO tip #101: Trim your mails when you reply.