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rcu-tasks: Remove unused struct rcu_tasks's->n_ipis_fails variables

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The RCU tasks trace has been reimplemented by 'commit c27cea4416
("rcu: Re-implement RCU Tasks Trace in terms of SRCU-fast")', the
rcu_tasks structure's->n_ipis_fails is no longer used, this commit
therefore remove it.

Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Zqiang 2026-07-06 18:03:09 +08:00 committed by Paul E. McKenney
parent ade2e3c3ae
commit 5b79f1d5d7
1 changed files with 2 additions and 4 deletions
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6
kernel/rcu/tasks.h
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@ -67,7 +67,6 @@ struct rcu_tasks_percpu {
* @gp_start: Most recent grace-period start in jiffies.
* @tasks_gp_seq: Number of grace periods completed since boot in upper bits.
* @n_ipis: Number of IPIs sent to encourage grace periods to end.
* @n_ipis_fails: Number of IPI-send failures.
* @kthread_ptr: This flavor's grace-period/callback-invocation kthread.
* @lazy_jiffies: Number of jiffies to allow callbacks to be lazy.
* @pregp_func: This flavor's pre-grace-period function (optional).
@ -102,7 +101,6 @@ struct rcu_tasks {
unsigned long gp_start;
unsigned long tasks_gp_seq;
unsigned long n_ipis;
unsigned long n_ipis_fails;
struct task_struct *kthread_ptr;
unsigned long lazy_jiffies;
rcu_tasks_gp_func_t gp_func;
@ -735,12 +733,12 @@ static void show_rcu_tasks_generic_gp_kthread(struct rcu_tasks *rtp, char *s)
if (havecbs && haveurgent && haveurgentcbs)
break;
}
pr_info("%s: %s(%d) since %lu g:%lu i:%lu/%lu %c%c%c%c l:%lu %s\n",
pr_info("%s: %s(%d) since %lu g:%lu i:%lu %c%c%c%c l:%lu %s\n",
rtp->kname,
tasks_gp_state_getname(rtp), data_race(rtp->gp_state),
jiffies - data_race(rtp->gp_jiffies),
data_race(rcu_seq_current(&rtp->tasks_gp_seq)),
data_race(rtp->n_ipis_fails), data_race(rtp->n_ipis),
data_race(rtp->n_ipis),
".k"[!!data_race(rtp->kthread_ptr)],
".C"[havecbs],
".u"[haveurgent],