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| author | Zqiang <qiang1.zhang@intel.com> | 2022-04-29 14:42:22 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-07-19 20:43:39 +0200 |
| commit | 5103850654fdc651f0a7076ac753b958f018bb85 (patch) | |
| tree | 89adc36d81d75bd2ce82d4b22b97465bdc914a47 /kernel/rcu/tree.h | |
| parent | rcu/nocb: Add an option to offload all CPUs on boot (diff) | |
| download | linux-5103850654fdc651f0a7076ac753b958f018bb85.tar.xz linux-5103850654fdc651f0a7076ac753b958f018bb85.zip | |
rcu: Add nocb_cb_kthread check to rcu_is_callbacks_kthread()
Callbacks are invoked in RCU kthreads when calbacks are offloaded
(rcu_nocbs boot parameter) or when RCU's softirq handler has been
offloaded to rcuc kthreads (use_softirq==0). The current code allows
for the rcu_nocbs case but not the use_softirq case. This commit adds
support for the use_softirq case.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 4f8532c33558..649ad4f0129b 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -426,7 +426,7 @@ static void rcu_flavor_sched_clock_irq(int user); static void dump_blkd_tasks(struct rcu_node *rnp, int ncheck); static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags); static void rcu_preempt_boost_start_gp(struct rcu_node *rnp); -static bool rcu_is_callbacks_kthread(void); +static bool rcu_is_callbacks_kthread(struct rcu_data *rdp); static void rcu_cpu_kthread_setup(unsigned int cpu); static void rcu_spawn_one_boost_kthread(struct rcu_node *rnp); static bool rcu_preempt_has_tasks(struct rcu_node *rnp); |