X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fum%2Fos-Linux%2Ftime.c;h=2115b8beb54167ffe9c522a5fbe6727b1e547137;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=6f7626775acb983e7f2e663d2312533d80c1a792;hpb=134734d875a0a48d994ef20b9905209b4b8b6f75;p=linux-2.6.git

diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6f7626775..2115b8beb 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -16,26 +16,27 @@
 #include "process.h"
 #include "kern_constants.h"
 #include "os.h"
+#include "uml-config.h"
 
-/* XXX This really needs to be declared and initialized in a kernel file since
- * it's in <linux/time.h>
- */
-extern struct timespec wall_to_monotonic;
-
-static void set_interval(int timer_type)
+int set_interval(int is_virtual)
 {
 	int usec = 1000000/hz();
+	int timer_type = is_virtual ? ITIMER_VIRTUAL : ITIMER_REAL;
 	struct itimerval interval = ((struct itimerval) { { 0, usec },
 							  { 0, usec } });
 
 	if(setitimer(timer_type, &interval, NULL) == -1)
-		panic("setitimer failed - errno = %d\n", errno);
+		return -errno;
+
+	return 0;
 }
 
+#ifdef UML_CONFIG_MODE_TT
 void enable_timer(void)
 {
-	set_interval(ITIMER_VIRTUAL);
+	set_interval(1);
 }
+#endif
 
 void disable_timer(void)
 {
@@ -45,8 +46,8 @@ void disable_timer(void)
 		printk("disnable_timer - setitimer failed, errno = %d\n",
 		       errno);
 	/* If there are signals already queued, after unblocking ignore them */
-	set_handler(SIGALRM, SIG_IGN, 0, -1);
-	set_handler(SIGVTALRM, SIG_IGN, 0, -1);
+	signal(SIGALRM, SIG_IGN);
+	signal(SIGVTALRM, SIG_IGN);
 }
 
 void switch_timers(int to_real)
@@ -71,6 +72,7 @@ void switch_timers(int to_real)
 		       errno);
 }
 
+#ifdef UML_CONFIG_MODE_TT
 void uml_idle_timer(void)
 {
 	if(signal(SIGVTALRM, SIG_IGN) == SIG_ERR)
@@ -78,24 +80,9 @@ void uml_idle_timer(void)
 
 	set_handler(SIGALRM, (__sighandler_t) alarm_handler,
 		    SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1);
-	set_interval(ITIMER_REAL);
-}
-
-extern void ktime_get_ts(struct timespec *ts);
-#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
-
-void time_init(void)
-{
-	struct timespec now;
-
-	if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR)
-		panic("Couldn't set SIGVTALRM handler");
-	set_interval(ITIMER_VIRTUAL);
-
-	do_posix_clock_monotonic_gettime(&now);
-	wall_to_monotonic.tv_sec = -now.tv_sec;
-	wall_to_monotonic.tv_nsec = -now.tv_nsec;
+	set_interval(0);
 }
+#endif
 
 unsigned long long os_nsecs(void)
 {
@@ -113,16 +100,3 @@ void idle_sleep(int secs)
 	ts.tv_nsec = 0;
 	nanosleep(&ts, NULL);
 }
-
-/* XXX This partly duplicates init_irq_signals */
-
-void user_time_init(void)
-{
-	set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
-		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
-		    SIGALRM, SIGUSR2, -1);
-	set_handler(SIGALRM, (__sighandler_t) alarm_handler,
-		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
-		    SIGVTALRM, SIGUSR2, -1);
-	set_interval(ITIMER_VIRTUAL);
-}