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-rw-r--r--include/linux/sched/signal.h1
-rw-r--r--kernel/sched/core.c2
-rw-r--r--kernel/signal.c11
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(&current->sighand->siglock);
+ set_tsk_thread_flag(current, TIF_SIGPENDING);
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
+}
+
/* Given the mask, find the first available signal that should be serviced. */
#define SYNCHRONOUS_MASK \