tree 6f83b4f9f823160fb20b6896ea7f3be7d6fdb633
parent 92e963f50fc74041b5e9e744c330dca48e04f08d
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1451434998 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1457995936 -0700

documentation: Fix control dependency and identical stores

The summary of the "CONTROL DEPENDENCIES" section incorrectly states that
barrier() may be used to prevent compiler reordering when more than one
leg of the control-dependent "if" statement start with identical stores.
This is incorrect at high optimization levels.  This commit therefore
updates the summary to match the detailed description.

Reported by: Jianyu Zhan <nasa4836@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>