uml: separate timer initialization

Move timer signal initialization from init_irq_signals to a new function,
timer_init.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 1c5267ec13b0..53593c8b9c34 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -85,6 +85,16 @@ void alarm_handler(int sig, struct sigcontext *sc)
         set_signals(enabled);
 }
 
+void timer_init(void)
+{
+        set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
+                    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+                    SIGALRM, -1);
+        set_handler(SIGALRM, (__sighandler_t) alarm_handler,
+                    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+                    SIGALRM, -1);
+}
+
 void set_sigstack(void *sig_stack, int size)
 {
         stack_t stack = ((stack_t) { .ss_flags  = 0,