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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 10/10] rcu-tasks: Fix some comments for call_rcu_tasks() and call_rcu_tasks_rude()
Date: Thu, 30 Jul 2026 18:04:01 -0700	[thread overview]
Message-ID: <20260731010401.3531631-10-paulmck@kernel.org> (raw)
In-Reply-To: <c50fb3e6-8d9f-4311-953e-a4703ba1e863@paulmck-laptop>

From: Zqiang <qiang.zhang@linux.dev>

The comments for call_rcu_tasks() and call_rcu_tasks_rude() referred
to "RCU read-side critical sections", which is ambiguous. specify
"rcu-tasks" and "rcu-tasks rude" respectively to match the actual
flavor being described.

Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 kernel/rcu/tasks.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index fce57d90db1a60..851ac225770c78 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -1179,7 +1179,7 @@ static void tasks_rcu_exit_stall(struct timer_list *unused)
  * @func: actual callback function to be invoked after the grace period
  *
  * The callback function will be invoked some time after a full grace
- * period elapses, in other words after all currently executing RCU
+ * period elapses, in other words after all currently executing rcu-tasks
  * read-side critical sections have completed. call_rcu_tasks() assumes
  * that the read-side critical sections end at a voluntary context
  * switch (not a preemption!), cond_resched_tasks_rcu_qs(), entry into idle,
@@ -1365,8 +1365,8 @@ DEFINE_RCU_TASKS(rcu_tasks_rude, rcu_tasks_rude_wait_gp, call_rcu_tasks_rude,
  * @func: actual callback function to be invoked after the grace period
  *
  * The callback function will be invoked some time after a full grace
- * period elapses, in other words after all currently executing RCU
- * read-side critical sections have completed. call_rcu_tasks_rude()
+ * period elapses, in other words after all currently executing rude
+ * rcu-tasks read-side critical sections have completed. call_rcu_tasks_rude()
  * assumes that the read-side critical sections end at context switch,
  * cond_resched_tasks_rcu_qs(), or transition to usermode execution (as
  * usermode execution is schedulable). As such, there are no read-side
@@ -1390,7 +1390,7 @@ static void call_rcu_tasks_rude(struct rcu_head *rhp, rcu_callback_t func)
  *
  * Control will return to the caller some time after a rude rcu-tasks
  * grace period has elapsed, in other words after all currently
- * executing rcu-tasks read-side critical sections have elapsed.  These
+ * executing rude rcu-tasks read-side critical sections have elapsed. These
  * read-side critical sections are delimited by calls to schedule(),
  * cond_resched_tasks_rcu_qs(), userspace execution (which is a schedulable
  * context), and (in theory, anyway) cond_resched().
-- 
2.40.1


      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 ` [PATCH RFC 09/10] rcu-tasks: Rename tasks_rcu_exit_srcu_stall_timer to tasks_rcu_exit_stall_timer Paul E. McKenney
2026-07-31  1:04 ` Paul E. McKenney [this message]

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