diff options
| -rw-r--r-- | include/linux/sched/signal.h | 1 | ||||
| -rw-r--r-- | kernel/sched/core.c | 2 | ||||
| -rw-r--r-- | kernel/signal.c | 11 |
3 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index 94558ffa82ab..b55fd293c1e5 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -372,6 +372,7 @@ static inline int signal_pending_state(long state, struct task_struct *p) */ extern void recalc_sigpending_and_wake(struct task_struct *t); extern void recalc_sigpending(void); +extern void calculate_sigpending(void); extern void signal_wake_up_state(struct task_struct *t, unsigned int state); diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 78d8facba456..3e4ed4b7aa2d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2813,6 +2813,8 @@ asmlinkage __visible void schedule_tail(struct task_struct *prev) if (current->set_child_tid) put_user(task_pid_vnr(current), current->set_child_tid); + + calculate_sigpending(); } /* diff --git a/kernel/signal.c b/kernel/signal.c index dddbea558455..1e06f1eba363 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -172,6 +172,17 @@ void recalc_sigpending(void) } +void calculate_sigpending(void) +{ + /* Have any signals or users of TIF_SIGPENDING been delayed + * until after fork? + */ + spin_lock_irq(¤t->sighand->siglock); + set_tsk_thread_flag(current, TIF_SIGPENDING); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); +} + /* Given the mask, find the first available signal that should be serviced. */ #define SYNCHRONOUS_MASK \ |