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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-06-06 10:45:37 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-06-06 10:45:37 -0700 |
| commit | 8dd06ef34b6e2f41b29fbf5fc1663780f2524285 (patch) | |
| tree | d59152f37ea7b36c3cf1778e20b85239f89c4e77 /kernel/workqueue.c | |
| parent | 642aa86eaf8f1e6fe894f20fd7f12f0db52ee03c (diff) | |
| parent | d0ac7079d5fcaaaf3eb99c197a08ac1b399754f4 (diff) | |
| download | cachepc-linux-8dd06ef34b6e2f41b29fbf5fc1663780f2524285.tar.gz cachepc-linux-8dd06ef34b6e2f41b29fbf5fc1663780f2524285.zip | |
Merge branch 'next' into for-linus
Prepare input updates for 5.8 merge window.
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index cfc923558e04..4e01c448b4b4 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1411,14 +1411,16 @@ static void __queue_work(int cpu, struct workqueue_struct *wq, return; rcu_read_lock(); retry: - if (req_cpu == WORK_CPU_UNBOUND) - cpu = wq_select_unbound_cpu(raw_smp_processor_id()); - /* pwq which will be used unless @work is executing elsewhere */ - if (!(wq->flags & WQ_UNBOUND)) - pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); - else + if (wq->flags & WQ_UNBOUND) { + if (req_cpu == WORK_CPU_UNBOUND) + cpu = wq_select_unbound_cpu(raw_smp_processor_id()); pwq = unbound_pwq_by_node(wq, cpu_to_node(cpu)); + } else { + if (req_cpu == WORK_CPU_UNBOUND) + cpu = raw_smp_processor_id(); + pwq = per_cpu_ptr(wq->cpu_pwqs, cpu); + } /* * If @work was previously on a different pool, it might still be @@ -2266,7 +2268,7 @@ __acquires(&pool->lock) * While we must be careful to not use "work" after this, the trace * point will only record its address. */ - trace_workqueue_execute_end(work); + trace_workqueue_execute_end(work, worker->current_func); lock_map_release(&lockdep_map); lock_map_release(&pwq->wq->lockdep_map); @@ -2280,7 +2282,7 @@ __acquires(&pool->lock) } /* - * The following prevents a kworker from hogging CPU on !PREEMPT + * The following prevents a kworker from hogging CPU on !PREEMPTION * kernels, where a requeueing work item waiting for something to * happen could deadlock with stop_machine as such work item could * indefinitely requeue itself while all other CPUs are trapped in |