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>
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 1897785..a6d8072 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -227,6 +227,7 @@
extern char *get_umid(void);
/* signal.c */
+extern void timer_init(void);
extern void set_sigstack(void *sig_stack, int size);
extern void remove_sigstack(void);
extern void set_handler(int sig, void (*handler)(int), int flags, ...);
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 2bda07dc..758d4f9 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -97,6 +97,8 @@
{
int err;
+ timer_init();
+
err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL);
if (err != 0)
printk(KERN_ERR "register_timer : request_irq failed - "
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index a633fa8..2fe4822 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -145,10 +145,6 @@
flags = on_sigstack ? SA_ONSTACK : 0;
- set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
- flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
- set_handler(SIGALRM, (__sighandler_t) alarm_handler,
- flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART,
SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1);
signal(SIGWINCH, SIG_IGN);
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 1c5267e..53593c8 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -85,6 +85,16 @@
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,