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-rw-r--r--include/linux/thread_info.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index db78775eff3b..ccc1899bd62e 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -8,6 +8,7 @@
#define _LINUX_THREAD_INFO_H
#include <linux/types.h>
+#include <linux/bug.h>
struct timespec;
struct compat_timespec;
@@ -125,10 +126,26 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
static inline void set_restore_sigmask(void)
{
set_thread_flag(TIF_RESTORE_SIGMASK);
- set_thread_flag(TIF_SIGPENDING);
+ WARN_ON(!test_thread_flag(TIF_SIGPENDING));
+}
+static inline void clear_restore_sigmask(void)
+{
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_restore_sigmask(void)
+{
+ return test_thread_flag(TIF_RESTORE_SIGMASK);
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+ return test_and_clear_thread_flag(TIF_RESTORE_SIGMASK);
}
#endif /* TIF_RESTORE_SIGMASK && !HAVE_SET_RESTORE_SIGMASK */
+#ifndef HAVE_SET_RESTORE_SIGMASK
+#error "no set_restore_sigmask() provided and default one won't work"
+#endif
+
#endif /* __KERNEL__ */
#endif /* _LINUX_THREAD_INFO_H */