The current cheat sheet does not claim that smp_mb__after_atomic() orders later RMW atomic operations, which it must, at least against earlier RMW atomic operations and whatever precedes them. This commit therefore adds the needed "Y". Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> --- tools/memory-model/Documentation/cheatsheet.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/memory-model/Documentation/cheatsheet.txt b/tools/memory-model/Documentation/cheatsheet.txt index d502993ac7d2..94bdc25944d9 100644 --- a/tools/memory-model/Documentation/cheatsheet.txt +++ b/tools/memory-model/Documentation/cheatsheet.txt @@ -14,7 +14,7 @@ smp_wmb() Y W Y Y W smp_mb() & synchronize_rcu() CP Y Y Y Y Y Y Y Y Successful full non-void RMW CP Y Y Y Y Y Y Y Y Y Y Y smp_mb__before_atomic() CP Y Y Y a a a a Y -smp_mb__after_atomic() CP a a Y Y Y Y Y +smp_mb__after_atomic() CP a a Y Y Y Y Y Y Key: C: Ordering is cumulative -- 2.5.2
