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Merge "msm: move printk out of spin lock low_water_lock"

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2018-06-23 07:54:51 -07:00
committed by Gerrit - the friendly Code Review server
parent b50d2bd7c7 1a538b3997
commit d905b74146
1 changed files with 7 additions and 2 deletions
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9
kernel/exit.c
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@@ -717,6 +717,7 @@ static void check_stack_usage(void)
static DEFINE_SPINLOCK(low_water_lock);
static int lowest_to_date = THREAD_SIZE;
unsigned long free;
int islower = false;
free = stack_not_used(current);
@@ -725,11 +726,15 @@ static void check_stack_usage(void)
spin_lock(&low_water_lock);
if (free < lowest_to_date) {
pr_info("%s (%d) used greatest stack depth: %lu bytes left\n",
current->comm, task_pid_nr(current), free);
lowest_to_date = free;
islower = true;
}
spin_unlock(&low_water_lock);
if (islower) {
pr_info("%s (%d) used greatest stack depth: %lu bytes left\n",
current->comm, task_pid_nr(current), free);
}
}
#else
static inline void check_stack_usage(void) {}