From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
mingo@kernel.org
Cc: stern@rowland.harvard.edu, parri.andrea@gmail.com,
will.deacon@arm.com, peterz@infradead.org, boqun.feng@gmail.com,
npiggin@gmail.com, dhowells@redhat.com, j.alglave@ucl.ac.uk,
luc.maranget@inria.fr, akiyks@gmail.com,
Andrea Parri <andrea.parri@amarulasolutions.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Daniel Lustig <dlustig@nvidia.com>,
Jonathan Corbet <corbet@lwn.net>
Subject: [PATCH memory-model 5/5] doc: Replace smp_cond_acquire() with smp_cond_load_acquire()
Date: Wed, 26 Sep 2018 11:29:20 -0700 [thread overview]
Message-ID: <20180926182920.27644-5-paulmck@linux.ibm.com> (raw)
In-Reply-To: <20180926182845.GA24839@linux.ibm.com>
From: Andrea Parri <andrea.parri@amarulasolutions.com>
Amend commit 1f03e8d2919270 ("locking/barriers: Replace smp_cond_acquire()
with smp_cond_load_acquire()") by updating the documentation accordingly.
Also remove some obsolete information related to the implementation.
Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jade Alglave <j.alglave@ucl.ac.uk>
Cc: Luc Maranget <luc.maranget@inria.fr>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Akira Yokosawa <akiyks@gmail.com>
Cc: Daniel Lustig <dlustig@nvidia.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
---
Documentation/memory-barriers.txt | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 0d8d7ef131e9..c1d913944ad8 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -471,8 +471,7 @@ And a couple of implicit varieties:
operations after the ACQUIRE operation will appear to happen after the
ACQUIRE operation with respect to the other components of the system.
ACQUIRE operations include LOCK operations and both smp_load_acquire()
- and smp_cond_acquire() operations. The later builds the necessary ACQUIRE
- semantics from relying on a control dependency and smp_rmb().
+ and smp_cond_load_acquire() operations.
Memory operations that occur before an ACQUIRE operation may appear to
happen after it completes.
--
2.17.1
next prev parent reply other threads:[~2018-09-26 18:29 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-26 18:28 [PATCH memory-model 0/5] Updates to the formal memory model Paul E. McKenney
2018-09-26 18:29 ` [PATCH memory-model 1/5] tools/memory-model: Add litmus-test naming scheme Paul E. McKenney
2018-10-02 10:10 ` [tip:locking/core] " tip-bot for Paul E. McKenney
2018-09-26 18:29 ` [PATCH memory-model 2/5] tools/memory-model: Add extra ordering for locks and remove it for ordinary release/acquire Paul E. McKenney
2018-10-02 10:11 ` [tip:locking/core] " tip-bot for Alan Stern
2021-09-08 11:00 ` Peter Zijlstra
2021-09-08 11:44 ` Peter Zijlstra
2021-09-08 14:42 ` Alan Stern
2021-09-08 15:12 ` Peter Zijlstra
2021-09-08 16:08 ` Linus Torvalds
2021-09-09 7:25 ` Peter Zijlstra
2021-09-09 13:35 ` Will Deacon
2021-09-09 17:02 ` Linus Torvalds
2021-09-09 18:59 ` Alan Stern
2021-09-09 17:03 ` Dan Lustig
2021-09-09 18:00 ` Paul E. McKenney
2021-09-10 14:20 ` Boqun Feng
2021-09-10 15:33 ` Palmer Dabbelt
2021-09-10 16:36 ` Alan Stern
2021-09-10 17:12 ` Peter Zijlstra
2021-09-10 17:56 ` Alan Stern
2021-09-10 17:17 ` Peter Zijlstra
2021-09-12 0:26 ` Boqun Feng
2021-09-10 0:01 ` Boqun Feng
2021-09-10 5:37 ` Boqun Feng
2021-09-10 9:33 ` Peter Zijlstra
2021-09-10 10:04 ` Boqun Feng
2021-09-10 13:48 ` Dan Lustig
2021-09-10 14:15 ` Boqun Feng
2021-09-09 17:46 ` Paul E. McKenney
2021-09-10 11:08 ` Will Deacon
2021-09-17 3:21 ` Nicholas Piggin
2021-09-17 5:31 ` Nicholas Piggin
2021-09-17 14:36 ` Michael Ellerman
2018-09-26 18:29 ` [PATCH memory-model 3/5] tools/memory-model: Fix a README typo Paul E. McKenney
2018-10-02 10:11 ` [tip:locking/core] " tip-bot for SeongJae Park
2018-09-26 18:29 ` [PATCH memory-model 4/5] tools/memory-model: Add more LKMM limitations Paul E. McKenney
2018-10-02 10:12 ` [tip:locking/core] " tip-bot for Paul E. McKenney
2018-09-26 18:29 ` Paul E. McKenney [this message]
2018-10-02 10:12 ` [tip:locking/core] locking/memory-barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() tip-bot for Andrea Parri
2018-10-02 8:28 ` [PATCH memory-model 0/5] Updates to the formal memory model Ingo Molnar
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