linux-kernel - [PATCH memory-model 5/5] doc: Replace smp_cond_acquire() with smp_cond_load

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Message-Id: <20180926182920.27644-5-paulmck@linux.ibm.com>
Date:   Wed, 26 Sep 2018 11:29:20 -0700
From:   "Paul E. McKenney" <paulmck@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mingo@...nel.org
Cc:     stern@...land.harvard.edu, parri.andrea@...il.com,
        will.deacon@....com, peterz@...radead.org, boqun.feng@...il.com,
        npiggin@...il.com, dhowells@...hat.com, j.alglave@....ac.uk,
        luc.maranget@...ia.fr, akiyks@...il.com,
        Andrea Parri <andrea.parri@...rulasolutions.com>,
        "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        Daniel Lustig <dlustig@...dia.com>,
        Jonathan Corbet <corbet@....net>
Subject: [PATCH memory-model 5/5] doc: Replace smp_cond_acquire() with smp_cond_load_acquire()

From: Andrea Parri <andrea.parri@...rulasolutions.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@...rulasolutions.com>
Cc: Alan Stern <stern@...land.harvard.edu>
Cc: Will Deacon <will.deacon@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: David Howells <dhowells@...hat.com>
Cc: Jade Alglave <j.alglave@....ac.uk>
Cc: Luc Maranget <luc.maranget@...ia.fr>
Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: Akira Yokosawa <akiyks@...il.com>
Cc: Daniel Lustig <dlustig@...dia.com>
Cc: Jonathan Corbet <corbet@....net>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Acked-by: Will Deacon <will.deacon@....com>
Acked-by: Alan Stern <stern@...land.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