On Wed, 2015-10-14 at 11:33 +0200, Peter Zijlstra wrote:
> On Wed, Oct 14, 2015 at 05:26:53PM +0800, Boqun Feng wrote:
> > Michael and Peter, rest of this patchset depends on commits which are
> > currently in the locking/core branch of the tip, so I would like it as a
> > whole queued there. Besid
On Wed, Oct 14, 2015 at 05:26:53PM +0800, Boqun Feng wrote:
> Michael and Peter, rest of this patchset depends on commits which are
> currently in the locking/core branch of the tip, so I would like it as a
> whole queued there. Besides, I will keep this patch Cc'ed to stable in
> future versions,
On Wed, Oct 14, 2015 at 10:06:13AM +0200, Peter Zijlstra wrote:
> On Wed, Oct 14, 2015 at 08:51:34AM +0800, Boqun Feng wrote:
> > On Wed, Oct 14, 2015 at 11:10:00AM +1100, Michael Ellerman wrote:
>
> > > Thanks for fixing this. In future you should send a patch like this as a
> > > separate patch.
On Wed, Oct 14, 2015 at 08:51:34AM +0800, Boqun Feng wrote:
> On Wed, Oct 14, 2015 at 11:10:00AM +1100, Michael Ellerman wrote:
> > Thanks for fixing this. In future you should send a patch like this as a
> > separate patch. I've not been paying attention to it because I assumed it
> > was
>
> G
On Wed, Oct 14, 2015 at 11:10:00AM +1100, Michael Ellerman wrote:
> On Mon, 2015-10-12 at 22:30 +0800, Boqun Feng wrote:
> > According to memory-barriers.txt, xchg, cmpxchg and their atomic{,64}_
> > versions all need to imply a full barrier, however they are now just
> > RELEASE+ACQUIRE, which is
On Mon, 2015-10-12 at 22:30 +0800, Boqun Feng wrote:
> According to memory-barriers.txt, xchg, cmpxchg and their atomic{,64}_
> versions all need to imply a full barrier, however they are now just
> RELEASE+ACQUIRE, which is not a full barrier.
>
> So replace PPC_RELEASE_BARRIER and PPC_ACQUIRE_BA
According to memory-barriers.txt, xchg, cmpxchg and their atomic{,64}_
versions all need to imply a full barrier, however they are now just
RELEASE+ACQUIRE, which is not a full barrier.
So replace PPC_RELEASE_BARRIER and PPC_ACQUIRE_BARRIER with
PPC_ATOMIC_ENTRY_BARRIER and PPC_ATOMIC_EXIT_BARRIER
