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authorIngo Molnar <mingo@elte.hu>2008-08-28 11:34:43 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-28 11:36:03 +0200
commitaef745fca016aea45adae5c98e8698904dd8ad51 (patch)
treefc5278fc828ba274ab8c5f8382345113ef14277c /kernel/sched.c
parent29cbef4869bf288256ab76c7dc674cb132b35de2 (diff)
downloadop-kernel-dev-aef745fca016aea45adae5c98e8698904dd8ad51.zip
op-kernel-dev-aef745fca016aea45adae5c98e8698904dd8ad51.tar.gz
sched: clean up __might_sleep()
add KERN_ to the printout and clean up the flow a bit. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c33
1 files changed, 19 insertions, 14 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 6e283dc..b112caa 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -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 (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);
- debug_show_held_locks(current);
- if (irqs_disabled())
- print_irqtrace_events(current);
- dump_stack();
- }
+ 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(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);
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