Messages in this thread Patch in this message | | | From | John Ogness <> | Subject | [PATCH printk v4 04/15] printk: wake up all waiters | Date | Thu, 21 Apr 2022 23:28:39 +0206 |
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There can be multiple tasks waiting for new records. They should all be woken. Use wake_up_interruptible_all() instead of wake_up_interruptible().
Signed-off-by: John Ogness <john.ogness@linutronix.de> Reviewed-by: Petr Mladek <pmladek@suse.com> --- kernel/printk/printk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index f817dfb4852d..e23357002648 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -3326,7 +3326,7 @@ static void wake_up_klogd_work_func(struct irq_work *irq_work) } if (pending & PRINTK_PENDING_WAKEUP) - wake_up_interruptible(&log_wait); + wake_up_interruptible_all(&log_wait); } static DEFINE_PER_CPU(struct irq_work, wake_up_klogd_work) = -- 2.30.2
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