Merge tag 'printk-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

torvalds · torvalds · commit 12831f6486f9 · 2022-06-02T08:49:54.000-07:00
Pull printk fixup from Petr Mladek:

 - Revert inappropriate use of wake_up_interruptible_all() in printk()

* tag 'printk-for-5.19-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  Revert "printk: wake up all waiters"
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
@@ -3904,7 +3904,7 @@ static void wake_up_klogd_work_func(struct irq_work *irq_work)
 	}
 
 	if (pending & PRINTK_PENDING_WAKEUP)
-		wake_up_interruptible_all(&log_wait);
+		wake_up_interruptible(&log_wait);
 }
 
 static DEFINE_PER_CPU(struct irq_work, wake_up_klogd_work) =

Original file line number	Diff line number	Diff line change
`@@ -3904,7 +3904,7 @@ static void wake_up_klogd_work_func(struct irq_work *irq_work)`
`3904`	`3904`	`}`
`3905`	`3905`
`3906`	`3906`	`if (pending & PRINTK_PENDING_WAKEUP)`
`3907`		`- wake_up_interruptible_all(&log_wait);`
	`3907`	`+ wake_up_interruptible(&log_wait);`
`3908`	`3908`	`}`
`3909`	`3909`
`3910`	`3910`	`static DEFINE_PER_CPU(struct irq_work, wake_up_klogd_work) =`