diff options
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 0a480853d527..222c55208b5c 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -395,6 +395,7 @@ static void exit_mm(struct task_struct *tsk) { struct mm_struct *mm = tsk->mm; struct core_state *core_state; + int mm_released; mm_release(tsk, mm); if (!mm) @@ -441,9 +442,12 @@ static void exit_mm(struct task_struct *tsk) enter_lazy_tlb(mm, current); task_unlock(tsk); mm_update_next_owner(mm); - mmput(mm); + + mm_released = mmput(mm); if (test_thread_flag(TIF_MEMDIE)) exit_oom_victim(); + if (mm_released) + set_tsk_thread_flag(tsk, TIF_MM_RELEASED); } static struct task_struct *find_alive_thread(struct task_struct *p) @@ -639,6 +643,7 @@ 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); @@ -647,11 +652,16 @@ static void check_stack_usage(void) spin_lock(&low_water_lock); if (free < lowest_to_date) { - pr_warn("%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) { + printk(KERN_WARNING "%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) {} @@ -708,6 +718,7 @@ void do_exit(long code) exit_signals(tsk); /* sets PF_EXITING */ + sched_exit(tsk); schedtune_exit_task(tsk); /* |