Messages in this thread Patch in this message | | | From | Cai Huoqing <> | Subject | [PATCH 6/6] trace/hwlat: Make use of the helper macro kthread_run_on_cpu() | Date | Thu, 21 Oct 2021 20:01:35 +0800 |
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Repalce kthread_create/kthread_bind/wake_up_process() with kthread_run_on_cpu() to simplify the code.
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> --- kernel/trace/trace_hwlat.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/kernel/trace/trace_hwlat.c b/kernel/trace/trace_hwlat.c index 1b83d75eb103..0e555335f095 100644 --- a/kernel/trace/trace_hwlat.c +++ b/kernel/trace/trace_hwlat.c @@ -491,18 +491,14 @@ static void stop_per_cpu_kthreads(void) static int start_cpu_kthread(unsigned int cpu) { struct task_struct *kthread; - char comm[24]; - snprintf(comm, 24, "hwlatd/%d", cpu); - - kthread = kthread_create_on_cpu(kthread_fn, NULL, cpu, comm); + kthread = kthread_run_on_cpu(kthread_fn, NULL, cpu, "hwlatd/%u"); if (IS_ERR(kthread)) { pr_err(BANNER "could not start sampling thread\n"); return -ENOMEM; } per_cpu(hwlat_per_cpu_data, cpu).kthread = kthread; - wake_up_process(kthread); return 0; } -- 2.25.1
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