* [PATCH] rcu-tasks: Fix some comments for call_rcu_tasks() and call_rcu_tasks_rude()
@ 2026-07-21 9:48 Zqiang
0 siblings, 0 replies; only message in thread
From: Zqiang @ 2026-07-21 9:48 UTC (permalink / raw)
To: paulmck, frederic, neeraj.upadhyay, joelagnelf, urezki, boqun
Cc: qiang.zhang, rcu, linux-kernel
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>
---
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 35d73f1aa7c4..6d50a9c8e950 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -1179,7 +1179,7 @@ static void tasks_rcu_exit_srcu_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().
--
2.17.1
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2026-07-21 9:48 [PATCH] rcu-tasks: Fix some comments for call_rcu_tasks() and call_rcu_tasks_rude() Zqiang
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