The patch titled
Subject: rcutorture: make use of the helper function kthread_run_on_cpu()
has been added to the -mm tree. Its filename is
rcutorture-make-use-of-the-helper-function-kthread_run_on_cpu.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/rcutorture-make-use-of-the-helper-function-kthread_run_on_cpu.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/rcutorture-make-use-of-the-helper-function-kthread_run_on_cpu.patch
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------------------------------------------------------
From: Cai Huoqing <caihuoqing@xxxxxxxxx>
Subject: rcutorture: make use of the helper function kthread_run_on_cpu()
Replace kthread_create_on_node/kthread_bind/wake_up_process() with
kthread_run_on_cpu() to simplify the code.
Link: https://lkml.kernel.org/r/20211022025711.3673-5-caihuoqing@xxxxxxxxx
Signed-off-by: Cai Huoqing <caihuoqing@xxxxxxxxx>
Cc: Bernard Metzler <bmt@xxxxxxxxxxxxxx>
Cc: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: Doug Ledford <dledford@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxx>
Cc: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: "Paul E . McKenney" <paulmck@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/rcu/rcutorture.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/kernel/rcu/rcutorture.c~rcutorture-make-use-of-the-helper-function-kthread_run_on_cpu
+++ a/kernel/rcu/rcutorture.c
@@ -1992,9 +1992,8 @@ static int rcutorture_booster_init(unsig
mutex_lock(&boost_mutex);
rcu_torture_disable_rt_throttle();
VERBOSE_TOROUT_STRING("Creating rcu_torture_boost task");
- boost_tasks[cpu] = kthread_create_on_node(rcu_torture_boost, NULL,
- cpu_to_node(cpu),
- "rcu_torture_boost");
+ boost_tasks[cpu] = kthread_run_on_cpu(rcu_torture_boost, NULL,
+ cpu, "rcu_torture_boost_%u");
if (IS_ERR(boost_tasks[cpu])) {
retval = PTR_ERR(boost_tasks[cpu]);
VERBOSE_TOROUT_STRING("rcu_torture_boost task create failed");
@@ -2003,8 +2002,6 @@ static int rcutorture_booster_init(unsig
mutex_unlock(&boost_mutex);
return retval;
}
- kthread_bind(boost_tasks[cpu], cpu);
- wake_up_process(boost_tasks[cpu]);
mutex_unlock(&boost_mutex);
return 0;
}
_
Patches currently in -mm which might be from caihuoqing@xxxxxxxxx are
kthread-add-the-helper-function-kthread_run_on_cpu.patch
rdma-siw-make-use-of-the-helper-function-kthread_run_on_cpu.patch
ring-buffer-make-use-of-the-helper-function-kthread_run_on_cpu.patch
rcutorture-make-use-of-the-helper-function-kthread_run_on_cpu.patch
trace-osnoise-make-use-of-the-helper-function-kthread_run_on_cpu.patch
trace-hwlat-make-use-of-the-helper-function-kthread_run_on_cpu.patch
