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workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu() 

Use pr_warn_once() to achieve the same thing. It's simpler.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Ammar Faizi 2023-02-26 23:53:20 +07:00 committed by Tejun Heo
parent 2c106e156a
commit a8ec5880bd
1 changed files with 2 additions and 4 deletions
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6
kernel/workqueue.c
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@ -1392,15 +1392,13 @@ static bool is_chained_work(struct workqueue_struct *wq)
*/
static int wq_select_unbound_cpu(int cpu)
{
static bool printed_dbg_warning;
int new_cpu;
if (likely(!wq_debug_force_rr_cpu)) {
if (cpumask_test_cpu(cpu, wq_unbound_cpumask))
return cpu;
} else if (!printed_dbg_warning) {
pr_warn("workqueue: round-robin CPU selection forced, expect performance impact\n");
printed_dbg_warning = true;
} else {
pr_warn_once("workqueue: round-robin CPU selection forced, expect performance impact\n");
}
if (cpumask_empty(wq_unbound_cpumask))