On (19/11/12 19:12), Sergey Senozhatsky wrote:

On (19/11/12 09:35), Petr Mladek wrote:
[..]

quoted

This is getting too complicated. It would introduce too many
hidden rules. While the explicitly passed loglevel parameter
is straightforward and clear.

If loglevel is DEFAULT or NOTICE or INFO then we can overwrite it
(either downgrade or upgrade). That's one rule, basically. Not too
complicated, I guess.

Can be taken even a bit further than

	show_stack(NULL, NULL, LOGLEVEL_DEBUG);
or
	show_stack(NULL, NULL, LOGLEVEL_ERR);

For instance,

	spin_lock_irqsave(&rq->lock, flags);
	printk_emergency_enter(LOGLEVEL_SCHED);
		...
		show_stack(...);
		printk();
		printk();
		...
	spin_unlock_irqrestore(&rq->lock, flags);

or

	spin_lock_irqsave(&uart_port->lock, flags);
	printk_emergency_enter(LOGLEVEL_SCHED);
		...
		printk();
		printk();
		...

and so on.

	-ss