From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
rostedt@goodmis.org, "Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 03/32] rcu-tasks: Move synchronize_rcu_tasks_generic() down
Date: Mon, 20 Jun 2022 15:53:42 -0700 [thread overview]
Message-ID: <20220620225411.3842519-3-paulmck@kernel.org> (raw)
In-Reply-To: <20220620225402.GA3842369@paulmck-ThinkPad-P17-Gen-1>
This is strictly a code-motion commit that moves the
synchronize_rcu_tasks_generic() down to where it can invoke
rcu_tasks_one_gp() without the need for a forward declaration.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/tasks.h | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index d7b12f524e81c..ad993c4ed924f 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -326,17 +326,6 @@ static void call_rcu_tasks_generic(struct rcu_head *rhp, rcu_callback_t func,
irq_work_queue(&rtpcp->rtp_irq_work);
}
-// Wait for a grace period for the specified flavor of Tasks RCU.
-static void synchronize_rcu_tasks_generic(struct rcu_tasks *rtp)
-{
- /* Complain if the scheduler has not started. */
- RCU_LOCKDEP_WARN(rcu_scheduler_active == RCU_SCHEDULER_INACTIVE,
- "synchronize_rcu_tasks called too soon");
-
- /* Wait for the grace period. */
- wait_rcu_gp(rtp->call_func);
-}
-
// RCU callback function for rcu_barrier_tasks_generic().
static void rcu_barrier_tasks_generic_cb(struct rcu_head *rhp)
{
@@ -558,6 +547,17 @@ static int __noreturn rcu_tasks_kthread(void *arg)
}
}
+// Wait for a grace period for the specified flavor of Tasks RCU.
+static void synchronize_rcu_tasks_generic(struct rcu_tasks *rtp)
+{
+ /* Complain if the scheduler has not started. */
+ RCU_LOCKDEP_WARN(rcu_scheduler_active == RCU_SCHEDULER_INACTIVE,
+ "synchronize_rcu_tasks called too soon");
+
+ /* Wait for the grace period. */
+ wait_rcu_gp(rtp->call_func);
+}
+
/* Spawn RCU-tasks grace-period kthread. */
static void __init rcu_spawn_tasks_kthread_generic(struct rcu_tasks *rtp)
{
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2022-06-20 22:54 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 22:54 [PATCH rcu 0/32] RCU Tasks updates for v5.20 Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 01/32] rcu-tasks: Check for abandoned callbacks Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 02/32] rcu-tasks: Split rcu_tasks_one_gp() from rcu_tasks_kthread() Paul E. McKenney
2022-06-20 22:53 ` Paul E. McKenney [this message]
2022-06-20 22:53 ` [PATCH rcu 04/32] rcu-tasks: Drive synchronous grace periods from calling task Paul E. McKenney
2022-09-01 10:36 ` Sascha Hauer
2022-09-01 17:27 ` Paul E. McKenney
2022-09-01 17:33 ` Paul E. McKenney
2022-09-02 11:52 ` Sascha Hauer
2022-09-02 12:04 ` Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 05/32] rcu-tasks: Merge state into .b.need_qs and atomically update Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 06/32] rcu-tasks: Remove rcu_tasks_trace_postgp() wait for counter Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 07/32] rcu-tasks: Make trc_read_check_handler() fetch ->trc_reader_nesting only once Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 08/32] rcu-tasks: Idle tasks on offline CPUs are in quiescent states Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 09/32] rcu-tasks: Handle idle tasks for recently offlined CPUs Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 10/32] rcu-tasks: RCU Tasks Trace grace-period kthread has implicit QS Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 11/32] rcu-tasks: Make rcu_note_context_switch() unconditionally call rcu_tasks_qs() Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 12/32] rcu-tasks: Simplify trc_inspect_reader() QS logic Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 13/32] rcu-tasks: Add slow-IPI indicator to RCU Tasks Trace stall warnings Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 14/32] rcu-tasks: Flag offline CPUs in " Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 15/32] rcu-tasks: Make RCU Tasks Trace stall warnings print full .b.need_qs field Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 16/32] rcu-tasks: Make RCU Tasks Trace stall warning handle idle offline tasks Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 17/32] rcu-tasks: Add data structures for lightweight grace periods Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 18/32] rcu-tasks: Track blocked RCU Tasks Trace readers Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 19/32] rcu-tasks: Untrack blocked RCU Tasks Trace at reader end Paul E. McKenney
2022-06-20 22:53 ` [PATCH rcu 20/32] rcu-tasks: Add blocked-task indicator to RCU Tasks Trace stall warnings Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 21/32] rcu-tasks: Move rcu_tasks_trace_pertask() before rcu_tasks_trace_pregp_step() Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 22/32] rcu-tasks: Avoid rcu_tasks_trace_pertask() duplicate list additions Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 23/32] rcu-tasks: Scan running tasks for RCU Tasks Trace readers Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 24/32] rcu-tasks: Pull in tasks blocked within " Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 25/32] rcu-tasks: Stop RCU Tasks Trace from scanning idle tasks Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 26/32] rcu-tasks: Stop RCU Tasks Trace from scanning full tasks list Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 27/32] rcu-tasks: Maintain a count of tasks blocking RCU Tasks Trace grace period Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 28/32] rcu-tasks: Eliminate RCU Tasks Trace IPIs to online CPUs Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 29/32] rcu-tasks: Disable and enable CPU hotplug in same function Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 30/32] rcu-tasks: Update comments Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 31/32] rcu-tasks: Be more patient for RCU Tasks boot-time testing Paul E. McKenney
2022-06-20 22:54 ` [PATCH rcu 32/32] rcu-tasks: Use delayed_work to delay rcu_tasks_verify_self_tests() Paul E. McKenney
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