tree e34032c0d1276b86076df9f0ad674b8850a4df08
parent 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1507565721 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1512413408 -0800

doc: READ_ONCE() now implies smp_barrier_depends()

This commit updates an example in memory-barriers.txt to account for
the fact that READ_ONCE() now implies smp_barrier_depends().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Added MEMORY_BARRIER instructions from DEC Alpha from
  READ_ONCE(), per David Howells's feedback. ]