From: "Paul E. McKenney" <[email protected]> Now that synchronize_rcu() waits for preempt-disable regions of code as well as RCU read-side critical sections, the synchronize_sched() in sys_membarrier() can be replaced by synchronize_rcu(). This commit therefore makes this change.
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Mathieu Desnoyers <[email protected]> --- kernel/sched/membarrier.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/membarrier.c b/kernel/sched/membarrier.c index 76e0eaf4654e..388a7a6c1aa2 100644 --- a/kernel/sched/membarrier.c +++ b/kernel/sched/membarrier.c @@ -298,7 +298,7 @@ SYSCALL_DEFINE2(membarrier, int, cmd, int, flags) if (tick_nohz_full_enabled()) return -EINVAL; if (num_online_cpus() > 1) - synchronize_sched(); + synchronize_rcu(); return 0; case MEMBARRIER_CMD_GLOBAL_EXPEDITED: return membarrier_global_expedited(); -- 2.17.1
