Commit-ID: 2f359c7ea554ba9cb78a52c82bedff351cdabd2b
Gitweb: https://git.kernel.org/tip/2f359c7ea554ba9cb78a52c82bedff351cdabd2b
Author: Andrea Parri <andrea.pa...@amarulasolutions.com>
AuthorDate: Wed, 26 Sep 2018 11:29:20 -0700
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 2 Oct 2018 10:28:05 +0200
locking/memory-barriers: Replace smp_cond_acquire() with smp_cond_load_acquire()
Amend the changes in 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.pa...@amarulasolutions.com>
Signed-off-by: Paul E. McKenney <paul...@linux.vnet.ibm.com>
Acked-by: Will Deacon <will.dea...@arm.com>
Acked-by: Alan Stern <st...@rowland.harvard.edu>
Cc: Akira Yokosawa <aki...@gmail.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Boqun Feng <boqun.f...@gmail.com>
Cc: Daniel Lustig <dlus...@nvidia.com>
Cc: David Howells <dhowe...@redhat.com>
Cc: Jade Alglave <j.algl...@ucl.ac.uk>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Jonathan Corbet <cor...@lwn.net>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Luc Maranget <luc.maran...@inria.fr>
Cc: Nicholas Piggin <npig...@gmail.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Vince Weaver <vincent.wea...@maine.edu>
Cc: linux-a...@vger.kernel.org
Cc: parri.and...@gmail.com
Link: http://lkml.kernel.org/r/20180926182920.27644-5-paul...@linux.ibm.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
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.
