From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
rostedt@goodmis.org, Zqiang <qiang.zhang@linux.dev>,
"Paul E . McKenney" <paulmck@kernel.org>
Subject: [PATCH RFC 09/10] rcu-tasks: Rename tasks_rcu_exit_srcu_stall_timer to tasks_rcu_exit_stall_timer
Date: Thu, 30 Jul 2026 18:04:00 -0700 [thread overview]
Message-ID: <20260731010401.3531631-9-paulmck@kernel.org> (raw)
In-Reply-To: <c50fb3e6-8d9f-4311-953e-a4703ba1e863@paulmck-laptop>
From: Zqiang <qiang.zhang@linux.dev>
This 'commit 1612160b9127 ("rcu-tasks: Eliminate deadlocks involving
do_exit() and RCU tasks")' has reimplemented the rcu_tasks_postscan(),
and the synchronize_srcu() has been removed, this commit therefore
rename tasks_rcu_exit_srcu_stall_timer to tasks_rcu_exit_stall_timer.
Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/tasks.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index 0306a0568f0144..fce57d90db1a60 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -155,8 +155,8 @@ static struct rcu_tasks rt_name = \
#ifdef CONFIG_TASKS_RCU
/* Report delay of scan exiting tasklist in rcu_tasks_postscan(). */
-static void tasks_rcu_exit_srcu_stall(struct timer_list *unused);
-static DEFINE_TIMER(tasks_rcu_exit_srcu_stall_timer, tasks_rcu_exit_srcu_stall);
+static void tasks_rcu_exit_stall(struct timer_list *unused);
+static DEFINE_TIMER(tasks_rcu_exit_stall_timer, tasks_rcu_exit_stall);
#endif
/* Control stall timeouts. Disable with <= 0, otherwise jiffies till stall. */
@@ -1032,8 +1032,8 @@ static void rcu_tasks_postscan(struct list_head *hop)
int rtsi = READ_ONCE(rcu_task_stall_info);
if (!IS_ENABLED(CONFIG_TINY_RCU)) {
- tasks_rcu_exit_srcu_stall_timer.expires = jiffies + rtsi;
- add_timer(&tasks_rcu_exit_srcu_stall_timer);
+ tasks_rcu_exit_stall_timer.expires = jiffies + rtsi;
+ add_timer(&tasks_rcu_exit_stall_timer);
}
/*
@@ -1086,7 +1086,7 @@ static void rcu_tasks_postscan(struct list_head *hop)
}
if (!IS_ENABLED(CONFIG_TINY_RCU))
- timer_delete_sync(&tasks_rcu_exit_srcu_stall_timer);
+ timer_delete_sync(&tasks_rcu_exit_stall_timer);
}
/* See if tasks are still holding out, complain if so. */
@@ -1158,7 +1158,7 @@ static void rcu_tasks_postgp(struct rcu_tasks *rtp)
synchronize_rcu();
}
-static void tasks_rcu_exit_srcu_stall(struct timer_list *unused)
+static void tasks_rcu_exit_stall(struct timer_list *unused)
{
#ifndef CONFIG_TINY_RCU
int rtsi;
@@ -1168,8 +1168,8 @@ static void tasks_rcu_exit_srcu_stall(struct timer_list *unused)
__func__, rcu_tasks.kname, rcu_tasks.tasks_gp_seq,
tasks_gp_state_getname(&rcu_tasks), jiffies - rcu_tasks.gp_jiffies);
pr_info("Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()\n");
- tasks_rcu_exit_srcu_stall_timer.expires = jiffies + rtsi;
- add_timer(&tasks_rcu_exit_srcu_stall_timer);
+ tasks_rcu_exit_stall_timer.expires = jiffies + rtsi;
+ add_timer(&tasks_rcu_exit_stall_timer);
#endif // #ifndef CONFIG_TINY_RCU
}
--
2.40.1
next prev parent reply other threads:[~2026-07-31 1:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 1:03 [PATCH 0/10] RCU Tasks updates for v7.3 Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 01/10] rcu-tasks: TASKS_TRACE_RCU doesn't need IRQ_WORK Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 02/10] rcu-tasks: Remove unused struct rcu_tasks's->n_ipis_fails variables Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 03/10] rcu-tasks: Dump rcu tasks status when the boot-test failed Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 04/10] rcu-tasks: Apply READ_ONCE() and WRITE_ONCE() to fix data race Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 05/10] rcu-tasks: Remove smp_mb() in rcu_spawn_tasks_kthread_generic() Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 06/10] rcu-tasks: Update comments in call_rcu_tasks_generic() Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 07/10] rcu-tasks: Dump rtpcp->lazy_timer status in show_rcu_tasks_generic_gp_kthread() Paul E. McKenney
2026-07-31 1:03 ` [PATCH RFC 08/10] rcu-tasks: Fix IRQ read lock/unlock data race Paul E. McKenney
2026-07-31 1:04 ` Paul E. McKenney [this message]
2026-07-31 1:04 ` [PATCH RFC 10/10] rcu-tasks: Fix some comments for call_rcu_tasks() and call_rcu_tasks_rude() Paul E. McKenney
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