From a458360af63a36424c9f607015f0858aacb84a19 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 19 Apr 2018 15:59:55 -0700 Subject: rcu: Drop early GP request check from rcu_gp_kthread() Now that grace-period requests use funnel locking and now that they set ->gp_flags to RCU_GP_FLAG_INIT even when the RCU grace-period kthread has not yet started, rcu_gp_kthread() no longer needs to check need_any_future_gp() at startup time. This commit therefore removes this check. Signed-off-by: Paul E. McKenney Tested-by: Nicholas Piggin --- kernel/rcu/tree.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'kernel/rcu') diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 020a0fe2dbee..ed238886e6ca 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2135,12 +2135,6 @@ static int __noreturn rcu_gp_kthread(void *arg) struct rcu_state *rsp = arg; struct rcu_node *rnp = rcu_get_root(rsp); - /* Check for early-boot work. */ - raw_spin_lock_irq_rcu_node(rnp); - if (need_any_future_gp(rnp)) - WRITE_ONCE(rsp->gp_flags, RCU_GP_FLAG_INIT); - raw_spin_unlock_irq_rcu_node(rnp); - rcu_bind_gp_kthread(); for (;;) { -- cgit v1.2.3