Merge branch 'torvalds/master'

[firefly-linux-kernel-4.4.55.git] / arch / um / os-Linux / util.c

diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index 492ef5e6e166e082969fda850698f75d281bac47..faee55ef6d2f4954aa9770c2d8985554e40797d7 100644 (file)
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -94,6 +94,16 @@ static inline void __attribute__ ((noreturn)) uml_abort(void)
                        exit(127);
 }
 
+/*
+ * UML helper threads must not handle SIGWINCH/INT/TERM
+ */
+void os_fix_helper_signals(void)
+{
+       signal(SIGWINCH, SIG_IGN);
+       signal(SIGINT, SIG_DFL);
+       signal(SIGTERM, SIG_DFL);
+}
+
 void os_dump_core(void)
 {
        int pid;