diff options
Diffstat (limited to 'tools/memory-model/Documentation/cheatsheet.txt')
| -rw-r--r-- | tools/memory-model/Documentation/cheatsheet.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/memory-model/Documentation/cheatsheet.txt b/tools/memory-model/Documentation/cheatsheet.txt index 956b1ae4..33ba98d 100644 --- a/tools/memory-model/Documentation/cheatsheet.txt +++ b/tools/memory-model/Documentation/cheatsheet.txt @@ -1,6 +1,6 @@ Prior Operation Subsequent Operation --------------- --------------------------- - C Self R W RWM Self R W DR DW RMW SV + C Self R W RMW Self R W DR DW RMW SV -- ---- - - --- ---- - - -- -- --- -- Store, e.g., WRITE_ONCE() Y Y @@ -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 @@ -26,4 +26,5 @@ Key: C: Ordering is cumulative DR: Dependent read (address dependency) DW: Dependent write (address, data, or control dependency) RMW: Atomic read-modify-write operation - SV Same-variable access + SELF: Orders self, as opposed to accesses before and/or after + SV: Orders later accesses to the same variable |
