forked from luck/tmp_suning_uos_patched
2625d469ba
This commit is the third step towards full abstraction of all accesses to the ->dynticks counter, implementing the previously open-coded atomic add of 1 and entry checks in a new rcu_dynticks_eqs_enter() function, and the same but with exit checks in a new rcu_dynticks_eqs_exit() function. This abstraction will ease changes to the ->dynticks counter operation. Note that this commit gets rid of the smp_mb__before_atomic() and the smp_mb__after_atomic() calls that were previously present. The reason that this is OK from a memory-ordering perspective is that the atomic operation is now atomic_add_return(), which, as a value-returning atomic, guarantees full ordering. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> [ paulmck: Fixed RCU_TRACE() statements added by this commit. ] Reviewed-by: Josh Triplett <josh@joshtriplett.org> |
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| .. | ||
| Makefile | ||
| rcu.h | ||
| rcuperf.c | ||
| rcutorture.c | ||
| srcu.c | ||
| sync.c | ||
| tiny_plugin.h | ||
| tiny.c | ||
| tree_exp.h | ||
| tree_plugin.h | ||
| tree_trace.c | ||
| tree.c | ||
| tree.h | ||
| update.c | ||