diff options
| author | John Keeping <john@metanate.com> | 2023-04-06 20:08:57 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-04-15 10:17:16 +0200 |
| commit | 803235982b8c086184d04798d9079d236f352f88 (patch) | |
| tree | 2887a4b98a563571a42d833c890591610736a2c3 /kernel/irq | |
| parent | softirq: Add trace points for tasklet entry/exit (diff) | |
| download | linux-803235982b8c086184d04798d9079d236f352f88.tar.xz linux-803235982b8c086184d04798d9079d236f352f88.zip | |
genirq: Update affinity of secondary threads
For interrupts with secondary threads, the affinity is applied when the
thread is created but if the interrupts affinity is changed later only
the primary thread is updated.
Update the secondary thread's affinity as well to keep all the interrupts
activity on the assigned CPUs.
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230406180857.588682-1-john@metanate.com
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 8ce75495e04f..d2742af0f0fd 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -189,9 +189,12 @@ void irq_set_thread_affinity(struct irq_desc *desc) { struct irqaction *action; - for_each_action_of_desc(desc, action) + for_each_action_of_desc(desc, action) { if (action->thread) set_bit(IRQTF_AFFINITY, &action->thread_flags); + if (action->secondary && action->secondary->thread) + set_bit(IRQTF_AFFINITY, &action->secondary->thread_flags); + } } #ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK |