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| author | Frederic Weisbecker <frederic@kernel.org> | 2022-02-16 16:42:07 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-04-11 17:05:58 -0700 |
| commit | 3352911fa9b47a90165e5c6fed440048c55146d1 (patch) | |
| tree | f185cee952395496318080742fd9d2c62c9c9ff7 /kernel/rcu/tree.h | |
| parent | 2eed973adc6e749439730e53e6220b122398d319 (diff) | |
| download | linux-stable-3352911fa9b47a90165e5c6fed440048c55146d1.tar.gz linux-stable-3352911fa9b47a90165e5c6fed440048c55146d1.tar.bz2 linux-stable-3352911fa9b47a90165e5c6fed440048c55146d1.zip | |
rcu: Initialize boost kthread only for boot node prior SMP initialization
The rcu_spawn_gp_kthread() function is called as an early initcall,
which means that SMP initialization hasn't happened yet and only the
boot CPU is online. Therefore, create only the boost kthread for the
leaf node of the boot CPU.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Uladzislau Rezki <uladzislau.rezki@sony.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index f6a3d54585c9..b2a0f2613ab9 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -422,7 +422,6 @@ static void rcu_preempt_boost_start_gp(struct rcu_node *rnp); static bool rcu_is_callbacks_kthread(void); static void rcu_cpu_kthread_setup(unsigned int cpu); static void rcu_spawn_one_boost_kthread(struct rcu_node *rnp); -static void __init rcu_spawn_boost_kthreads(void); static bool rcu_preempt_has_tasks(struct rcu_node *rnp); static bool rcu_preempt_need_deferred_qs(struct task_struct *t); static void rcu_preempt_deferred_qs(struct task_struct *t); |