signals: add set_restore_sigmask

[linux-2.6-omap-h63xx.git] / include / linux / thread_info.h

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index accd7bad35b09152b8ecf2abcd8ab063c53ae5fb..43d8162c696e9e43823900c3a9f5e83ad7a3b6cb 100644 (file)
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -92,6 +92,19 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
 #define set_need_resched()     set_thread_flag(TIF_NEED_RESCHED)
 #define clear_need_resched()   clear_thread_flag(TIF_NEED_RESCHED)
 
-#endif
+#ifdef TIF_RESTORE_SIGMASK
+/**
+ * set_restore_sigmask() - make sure saved_sigmask processing gets done
+ *
+ * This sets TIF_RESTORE_SIGMASK and ensures that the arch signal code
+ * will run before returning to user mode, to process the flag.
+ */
+static inline void set_restore_sigmask(void)
+{
+       set_thread_flag(TIF_RESTORE_SIGMASK);
+}
+#endif /* TIF_RESTORE_SIGMASK */
+
+#endif /* __KERNEL__ */
 
 #endif /* _LINUX_THREAD_INFO_H */