Commit-ID: 2f359c7ea554ba9cb78a52c82bedff351cdabd2b
Gitweb: https://git.kernel.org/tip/2f359c7ea554ba9cb78a52c82bedff351cdabd2b
Author: Andrea Parri <[email protected]>
AuthorDate: Wed, 26 Sep 2018 11:29:20 -0700
Committer: Ingo Molnar <[email protected]>
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 <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Acked-by: Will Deacon <[email protected]>
Acked-by: Alan Stern <[email protected]>
Cc: Akira Yokosawa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Daniel Lustig <[email protected]>
Cc: David Howells <[email protected]>
Cc: Jade Alglave <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Luc Maranget <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vince Weaver <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
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.
