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Commit aef745fc authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched: clean up __might_sleep() 



add KERN_ to the printout and clean up the flow a bit.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 29cbef48

kernel/sched.c

+19 −14
Original line number Diff line number Diff line
@@ -8226,20 +8226,25 @@ void __might_sleep(char *file, int line) 
#ifdef in_atomic

	static unsigned long prev_jiffy;	/* ratelimiting */



	if ((in_atomic() || irqs_disabled()) &&

	    system_state == SYSTEM_RUNNING && !oops_in_progress) {

	if ((!in_atomic() && !irqs_disabled()) ||

		    system_state != SYSTEM_RUNNING || oops_in_progress)

		return;

	if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy)

		return;

	prev_jiffy = jiffies;

		printk(KERN_ERR "BUG: sleeping function called from invalid"

				" context at %s:%d\n", file, line);

		printk("in_atomic():%d, irqs_disabled():%d, pid: %d, name: %s\n",

			in_atomic(), irqs_disabled(), current->pid, current->comm);



	printk(KERN_ERR

		"BUG: sleeping function called from invalid context at %s:%d\n",

			file, line);

	printk(KERN_ERR

		"in_atomic(): %d, irqs_disabled(): %d, pid: %d, name: %s\n",

			in_atomic(), irqs_disabled(),

			current->pid, current->comm);



	debug_show_held_locks(current);

	if (irqs_disabled())

		print_irqtrace_events(current);

	dump_stack();

	}

#endif

}

EXPORT_SYMBOL(__might_sleep);