Commit 10d47031 authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Paul E. McKenney
Browse files

rcu/nocb: Merge rcu_spawn_cpu_nocb_kthread() and rcu_spawn_one_nocb_kthread() 



The rcu_spawn_one_nocb_kthread() function is called only from
rcu_spawn_cpu_nocb_kthread().  Therefore, inline the former into
the latter, saving a few lines of code.

Reviewed-by: default avatarNeeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Tested-by: default avatarJuri Lelli <juri.lelli@redhat.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent d2cf0854

kernel/rcu/tree_nocb.h

+4 −11
Original line number Diff line number Diff line
@@ -1233,12 +1233,15 @@ static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp) 
 * rcuo CB kthread, spawn it.  Additionally, if the rcuo GP kthread

 * for this CPU's group has not yet been created, spawn it as well.

 */

static void rcu_spawn_one_nocb_kthread(int cpu)

static void rcu_spawn_cpu_nocb_kthread(int cpu)

{

	struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);

	struct rcu_data *rdp_gp;

	struct task_struct *t;



	if (!rcu_scheduler_fully_active || !rcu_nocb_is_setup)

		return;



	/* If there already is an rcuo kthread, then nothing to do. */

	if (rdp->nocb_cb_kthread)

		return;
@@ -1262,16 +1265,6 @@ static void rcu_spawn_one_nocb_kthread(int cpu) 
	WRITE_ONCE(rdp->nocb_gp_kthread, rdp_gp->nocb_gp_kthread);

}



/*

 * If the specified CPU is a no-CBs CPU that does not already have its

 * rcuo kthread, spawn it.

 */

static void rcu_spawn_cpu_nocb_kthread(int cpu)

{

	if (rcu_scheduler_fully_active && rcu_nocb_is_setup)

		rcu_spawn_one_nocb_kthread(cpu);

}



/*

 * Once the scheduler is running, spawn rcuo kthreads for all online

 * no-CBs CPUs.  This assumes that the early_initcall()s happen before