Commits
Paul E. McKenney committed ac5e9e801f4
rcu: Add memory barriers for NOCB leader wakeup commit 6b5fc3a1331810db407c9e0e673dc1837afdc9d0 upstream. Wait/wakeup operations do not guarantee ordering on their own. Instead, either locking or memory barriers are required. This commit therefore adds memory barriers to wake_nocb_leader() and nocb_leader_wait(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Krister Johansen <kjlx@templeofstupid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>