| From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 12/40] rcu: Move rcu_gp_in_progress() to ->gp_seq | Date | Mon, 25 Jun 2018 17:08:31 -0700 |
| |
This commit makes rcu_gp_in_progress() use ->gp_seq instead of ->completed and ->gpnum. The READ_ONCE() invocations are buried in rcu_seq_current().
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index eef3ce54114f..fc889c58964c 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -219,7 +219,7 @@ unsigned long rcu_rnp_online_cpus(struct rcu_node *rnp) */ static int rcu_gp_in_progress(struct rcu_state *rsp) { - return READ_ONCE(rsp->completed) != READ_ONCE(rsp->gpnum); + return rcu_seq_state(rcu_seq_current(&rsp->gp_seq)); } /* -- 2.17.1
|