From: "Paul E. McKenney" <paulmck@kernel.org>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org, Yunjae Lee <lyj7694@gmail.com>,
SeongJae Park <sj38.park@gmail.com>,
Josh Triplett <josh@joshtriplett.org>,
Matt Turner <mattst88@gmail.com>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Richard Henderson <rth@twiddle.net>,
Peter Zijlstra <peterz@infradead.org>,
Alan Stern <stern@rowland.harvard.edu>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
Joe Perches <joe@perches.com>, Boqun Feng <boqun.feng@gmail.com>,
linux-alpha@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 11/13] powerpc: Remove comment about read_barrier_depends()
Date: Tue, 26 Nov 2019 14:24:28 -0800 [thread overview]
Message-ID: <20191126222428.GX2889@paulmck-ThinkPad-P72> (raw)
In-Reply-To: <87imnebzpb.fsf@mpe.ellerman.id.au>
On Wed, Nov 20, 2019 at 09:37:52PM +1100, Michael Ellerman wrote:
> Will Deacon <will@kernel.org> writes:
> > 'read_barrier_depends()' doesn't exist anymore so stop talking about it.
> >
> > Signed-off-by: Will Deacon <will@kernel.org>
> > ---
> > arch/powerpc/include/asm/barrier.h | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
> > index fbe8df433019..123adcefd40f 100644
> > --- a/arch/powerpc/include/asm/barrier.h
> > +++ b/arch/powerpc/include/asm/barrier.h
> > @@ -18,8 +18,6 @@
> > * mb() prevents loads and stores being reordered across this point.
> > * rmb() prevents loads being reordered across this point.
> > * wmb() prevents stores being reordered across this point.
> > - * read_barrier_depends() prevents data-dependent loads being reordered
> > - * across this point (nop on PPC).
>
> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Queued for v5.6, thank you both!
Thanx, Paul
next prev parent reply other threads:[~2019-11-26 22:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 17:01 [PATCH 00/13] Finish off [smp_]read_barrier_depends() Will Deacon
2019-11-08 17:01 ` [PATCH 01/13] compiler.h: Split {READ,WRITE}_ONCE definitions out into rwonce.h Will Deacon
2019-11-08 19:57 ` Arnd Bergmann
2019-11-11 8:10 ` Christian Borntraeger
2019-11-11 9:32 ` [PATCH 01/13] compiler.h: Split {READ, WRITE}_ONCE " Arnd Bergmann
2019-11-12 11:36 ` [PATCH 01/13] compiler.h: Split {READ,WRITE}_ONCE " Will Deacon
2019-11-08 17:01 ` [PATCH 02/13] READ_ONCE: Undefine internal __READ_ONCE_SIZE macro after use Will Deacon
2019-11-08 17:01 ` [PATCH 03/13] READ_ONCE: Allow __READ_ONCE_SIZE cases to be overridden by the architecture Will Deacon
2019-11-08 17:01 ` [PATCH 04/13] vhost: Remove redundant use of read_barrier_depends() barrier Will Deacon
2019-11-08 17:01 ` [PATCH 05/13] alpha: Override READ_ONCE() with barriered implementation Will Deacon
2019-11-08 17:01 ` [PATCH 06/13] READ_ONCE: Remove smp_read_barrier_depends() invocation Will Deacon
2019-11-08 17:01 ` [PATCH 07/13] alpha: Replace smp_read_barrier_depends() usage with smp_[r]mb() Will Deacon
2019-11-08 17:01 ` [PATCH 08/13] locking/barriers: Remove definitions for [smp_]read_barrier_depends() Will Deacon
2019-11-08 17:01 ` [PATCH 09/13] Documentation/barriers: Remove references to [smp_]read_barrier_depends() Will Deacon
2019-11-08 17:01 ` [PATCH 10/13] tools/memory-model: Remove smp_read_barrier_depends() from informal doc Will Deacon
2019-11-08 17:42 ` Alan Stern
2019-11-08 17:01 ` [PATCH 11/13] powerpc: Remove comment about read_barrier_depends() Will Deacon
2019-11-20 10:37 ` Michael Ellerman
2019-11-26 22:24 ` Paul E. McKenney [this message]
2019-11-08 17:01 ` [PATCH 12/13] include/linux: Remove smp_read_barrier_depends() from comments Will Deacon
2019-11-08 17:01 ` [PATCH 13/13] checkpatch: Remove checks relating to [smp_]read_barrier_depends() Will Deacon
2019-11-08 18:50 ` [PATCH 00/13] Finish off [smp_]read_barrier_depends() Paul E. McKenney
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