tree 7744a2f51d5f59b2a7241c09fbc5325da37dc800
parent 1d082fd061884a587c490c4fc8a2056ce1e47624
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1408059526 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1410132455 -0700

rcu: Per-CPU operation cleanups to rcu_*_qs() functions

The rcu_bh_qs(), rcu_preempt_qs(), and rcu_sched_qs() functions use
old-style per-CPU variable access and write to ->passed_quiesce even
if it is already set.  This commit therefore updates to use the new-style
per-CPU variable access functions and avoids the spurious writes.
This commit also eliminates the "cpu" argument to these functions because
they are always invoked on the indicated CPU.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>