uml: GENERIC_CLOCKEVENTS support

Enable CONFIG_GENERIC_CLOCKEVENTS.

timer_irq gets its name changed to timer_handler, and becomes the recipient of
timer signals.

The clock_event_device is set up to imitate the current ticking clock, i.e.
CLOCK_EVT_FEAT_ONESHOT is not enabled yet.

disable_timer now doesn't ignore SIGALRM and SIGVTALRM because that breaks
delay calibration.

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, 0 insertions, 4 deletions

diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index b156f03e1713..6ff3d98281ba 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -34,10 +34,6 @@ void disable_timer(void)
             (setitimer(ITIMER_REAL, &disable, NULL) < 0))
                 printk(UM_KERN_ERR "disable_timer - setitimer failed, "
                        "errno = %d\n", errno);
-
-        /* If there are signals already queued, after unblocking ignore them */
-        signal(SIGALRM, SIG_IGN);
-        signal(SIGVTALRM, SIG_IGN);
 }
 
 int switch_timers(int to_real)