linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
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


  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180926182920.27644-5-paulmck@linux.ibm.com \
    --to=paulmck@linux.ibm.com \
    --cc=akiyks@gmail.com \
    --cc=andrea.parri@amarulasolutions.com \
    --cc=boqun.feng@gmail.com \
    --cc=corbet@lwn.net \
    --cc=dhowells@redhat.com \
    --cc=dlustig@nvidia.com \
    --cc=j.alglave@ucl.ac.uk \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luc.maranget@inria.fr \
    --cc=mingo@kernel.org \
    --cc=npiggin@gmail.com \
    --cc=parri.andrea@gmail.com \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=peterz@infradead.org \
    --cc=stern@rowland.harvard.edu \
    --cc=will.deacon@arm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).