| commit | 80dcf60e6b97c7363971e7a0a788d8484d35f8a6 | [log] [tgz] |
|---|---|---|
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | Thu Aug 19 16:57:45 2010 -0700 |
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | Fri Aug 20 09:00:17 2010 -0700 |
| tree | 2f493fdf6a7a52675733ac74daa9e1cd9342a030 | |
| parent | 7b0b759b65247cbc66384a912be9acf8d4800636 [diff] |
rcu: apply TINY_PREEMPT_RCU read-side speedup to TREE_PREEMPT_RCU Replace one of the ACCESS_ONCE() calls in each of __rcu_read_lock() and __rcu_read_unlock() with barrier() as suggested by Steve Rostedt in order to avoid the potential compiler-optimization-induced bug noted by Mathieu Desnoyers. Located-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>