tree 5d1f009d9292ad680b8a7a58930bb02139d377e3
parent 52494535103986dbbf689b44d8c2c7efe2132b16
author Richard Braun <rbraun@sceen.net> 1355393252 +0100
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1357683295 -0800

Documentation: Memory barrier semantics of atomic_xchg()

Add atomic_xchg() to documentation for atomic operations and
memory barriers.

Signed-off-by: Richard Braun <rbraun@sceen.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>