uml: eliminate SIGALRM

Now that ITIMER_REAL is no longer used, there is no need for any use of
SIGALRM whatsoever.  This patch removes all mention of it.

In addition, real_alarm_handler took a signal argument which is now always
SIGVTALRM.  So, that is gone.

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, 2 insertions, 3 deletions

diff --git a/arch/um/os-Linux/skas/trap.c b/arch/um/os-Linux/skas/trap.c
index e53face44200..3b1b9244f468 100644
--- a/arch/um/os-Linux/skas/trap.c
+++ b/arch/um/os-Linux/skas/trap.c
@@ -58,9 +58,8 @@ void sig_handler_common_skas(int sig, void *sc_ptr)
 
         handler = sig_info[sig];
 
-        /* unblock SIGALRM, SIGVTALRM, SIGIO if sig isn't IRQ signal */
-        if (sig != SIGIO && sig != SIGWINCH &&
-            sig != SIGVTALRM && sig != SIGALRM)
+        /* unblock SIGVTALRM, SIGIO if sig isn't IRQ signal */
+        if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM))
                 unblock_signals();
 
         handler(sig, r);