Commit 938ba408 authored by John Ogness's avatar John Ogness Committed by Petr Mladek
Browse files

printk: wake up all waiters 



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: default avatarJohn Ogness <john.ogness@linutronix.de>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220421212250.565456-5-john.ogness@linutronix.de
parent 1f5d7830

kernel/printk/printk.c

+1 −1
Original line number Diff line number Diff line
@@ -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) =