signal: simplify set_user_sigmask/restore_user_sigmask

[platform/kernel/linux-rpi.git] / include / linux / sched / signal.h

diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 5324586..efd8ce7 100644 (file)
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -15,10 +15,10 @@
  */
 
 struct sighand_struct {
-       refcount_t              count;
-       struct k_sigaction      action[_NSIG];
        spinlock_t              siglock;
+       refcount_t              count;
        wait_queue_head_t       signalfd_wqh;
+       struct k_sigaction      action[_NSIG];
 };
 
 /*
@@ -420,7 +420,6 @@ void task_join_group_stop(struct task_struct *task);
 static inline void set_restore_sigmask(void)
 {
        set_thread_flag(TIF_RESTORE_SIGMASK);
-       WARN_ON(!test_thread_flag(TIF_SIGPENDING));
 }
 
 static inline void clear_tsk_restore_sigmask(struct task_struct *task)
@@ -451,7 +450,6 @@ static inline bool test_and_clear_restore_sigmask(void)
 static inline void set_restore_sigmask(void)
 {
        current->restore_sigmask = true;
-       WARN_ON(!test_thread_flag(TIF_SIGPENDING));
 }
 static inline void clear_tsk_restore_sigmask(struct task_struct *task)
 {
@@ -484,6 +482,16 @@ static inline void restore_saved_sigmask(void)
                __set_current_blocked(&current->saved_sigmask);
 }
 
+extern int set_user_sigmask(const sigset_t __user *umask, size_t sigsetsize);
+
+static inline void restore_saved_sigmask_unless(bool interrupted)
+{
+       if (interrupted)
+               WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+       else
+               restore_saved_sigmask();
+}
+
 static inline sigset_t *sigmask_to_save(void)
 {
        sigset_t *res = &current->blocked;