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authorAndrea Parri <[email protected]>2018-09-26 11:29:20 -0700
committerIngo Molnar <[email protected]>2018-10-02 10:28:05 +0200
commit2f359c7ea554ba9cb78a52c82bedff351cdabd2b (patch)
treeae9f63f768a3aa06abf140f0b4eeacb672eac136
parentd8fa25c4efde0e5f31a427202e583d73d3f021c4 (diff)
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]>
-rw-r--r--Documentation/memory-barriers.txt3
1 files changed, 1 insertions, 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.