diff options
| author | Arve Hjønnevåg <arve@android.com> | 2008-12-10 20:06:28 -0800 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2011-06-14 09:08:40 -0700 |
| commit | f2a96a65e2486d60b3bcb47f5184462690b3eeac (patch) | |
| tree | 29fd645ed44a0a69fde1f941b978b3c1e6d42886 /kernel/sched.c | |
| parent | ac7df7d13e258e059dd75341043913498302dcb8 (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/sched.c')
| -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 3f2e502d609b..ea7a385dacd6 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -8037,13 +8037,24 @@ static inline int preempt_count_equals(int preempt_offset) return (nested == 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(const 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; |