diff options
author | Arve Hjønnevåg <arve@android.com> | 2008-12-10 20:06:28 -0800 |
---|---|---|
committer | Arve Hjønnevåg <arve@android.com> | 2010-02-03 21:26:58 -0800 |
commit | 563036940546f44a6232bee51459e7ea7d2da2c7 (patch) | |
tree | 673b334af3f0fa7d9f126a11a933653db35c5b52 /kernel | |
parent | 207f66e23a69bc23265e1f133702bc59c3096696 (diff) |
sched: Enable might_sleep before initializing drivers.
This allows detection of init bugs in built-in drivers.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/sched.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 84f8f1020db3..4a8163f7eb58 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -9581,13 +9581,24 @@ static inline int preempt_count_equals(int preempt_offset) return (nested == PREEMPT_INATOMIC_BASE + preempt_offset); } +static int __might_sleep_init_called; +int __init __might_sleep_init(void) +{ + __might_sleep_init_called = 1; + return 0; +} +early_initcall(__might_sleep_init); + void __might_sleep(char *file, int line, int preempt_offset) { #ifdef in_atomic static unsigned long prev_jiffy; /* ratelimiting */ if ((preempt_count_equals(preempt_offset) && !irqs_disabled()) || - system_state != SYSTEM_RUNNING || oops_in_progress) + oops_in_progress) + return; + if (system_state != SYSTEM_RUNNING && + (!__might_sleep_init_called || system_state != SYSTEM_BOOTING)) return; if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) return; |