From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- drivers/accessibility/speakup/thread.c | 62 ++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 drivers/accessibility/speakup/thread.c (limited to 'drivers/accessibility/speakup/thread.c') diff --git a/drivers/accessibility/speakup/thread.c b/drivers/accessibility/speakup/thread.c new file mode 100644 index 000000000..2fc75e60f --- /dev/null +++ b/drivers/accessibility/speakup/thread.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include + +#include "spk_types.h" +#include "speakup.h" +#include "spk_priv.h" + +DECLARE_WAIT_QUEUE_HEAD(speakup_event); +EXPORT_SYMBOL_GPL(speakup_event); + +int speakup_thread(void *data) +{ + unsigned long flags; + int should_break; + struct bleep our_sound; + + our_sound.active = 0; + our_sound.freq = 0; + our_sound.jiffies = 0; + + mutex_lock(&spk_mutex); + while (1) { + DEFINE_WAIT(wait); + + while (1) { + spin_lock_irqsave(&speakup_info.spinlock, flags); + our_sound = spk_unprocessed_sound; + spk_unprocessed_sound.active = 0; + prepare_to_wait(&speakup_event, &wait, + TASK_INTERRUPTIBLE); + should_break = kthread_should_stop() || + our_sound.active || + (synth && synth->catch_up && synth->alive && + (speakup_info.flushing || + !synth_buffer_empty())); + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (should_break) + break; + mutex_unlock(&spk_mutex); + schedule(); + mutex_lock(&spk_mutex); + } + finish_wait(&speakup_event, &wait); + if (kthread_should_stop()) + break; + + if (our_sound.active) + kd_mksound(our_sound.freq, our_sound.jiffies); + if (synth && synth->catch_up && synth->alive) { + /* + * It is up to the callee to take the lock, so that it + * can sleep whenever it likes + */ + synth->catch_up(synth); + } + + speakup_start_ttys(); + } + mutex_unlock(&spk_mutex); + return 0; +} -- cgit v1.3.1