fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / kernel / hrtimer.c

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 21c38a7..8596409 100644 (file)
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -332,6 +332,12 @@ hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval)
                orun++;
        }
        timer->expires = ktime_add(timer->expires, interval);
+       /*
+        * Make sure, that the result did not wrap with a very large
+        * interval.
+        */
+       if (timer->expires.tv64 < 0)
+               timer->expires = ktime_set(KTIME_SEC_MAX, 0);
 
        return orun;
 }
@@ -693,7 +699,7 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
        return t->task == NULL;
 }
 
-static long __sched nanosleep_restart(struct restart_block *restart)
+long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
 {
        struct hrtimer_sleeper t;
        struct timespec __user *rmtp;
@@ -702,13 +708,13 @@ static long __sched nanosleep_restart(struct restart_block *restart)
 
        restart->fn = do_no_restart_syscall;
 
-       hrtimer_init(&t.timer, restart->arg3, HRTIMER_ABS);
-       t.timer.expires.tv64 = ((u64)restart->arg1 << 32) | (u64) restart->arg0;
+       hrtimer_init(&t.timer, restart->arg0, HRTIMER_ABS);
+       t.timer.expires.tv64 = ((u64)restart->arg3 << 32) | (u64) restart->arg2;
 
        if (do_nanosleep(&t, HRTIMER_ABS))
                return 0;
 
-       rmtp = (struct timespec __user *) restart->arg2;
+       rmtp = (struct timespec __user *) restart->arg1;
        if (rmtp) {
                time = ktime_sub(t.timer.expires, t.timer.base->get_time());
                if (time.tv64 <= 0)
@@ -718,7 +724,7 @@ static long __sched nanosleep_restart(struct restart_block *restart)
                        return -EFAULT;
        }
 
-       restart->fn = nanosleep_restart;
+       restart->fn = hrtimer_nanosleep_restart;
 
        /* The other values in restart are already filled in */
        return -ERESTART_RESTARTBLOCK;
@@ -751,11 +757,11 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec __user *rmtp,
        }
 
        restart = &current_thread_info()->restart_block;
-       restart->fn = nanosleep_restart;
-       restart->arg0 = t.timer.expires.tv64 & 0xFFFFFFFF;
-       restart->arg1 = t.timer.expires.tv64 >> 32;
-       restart->arg2 = (unsigned long) rmtp;
-       restart->arg3 = (unsigned long) t.timer.base->index;
+       restart->fn = hrtimer_nanosleep_restart;
+       restart->arg0 = (unsigned long) t.timer.base->index;
+       restart->arg1 = (unsigned long) rmtp;
+       restart->arg2 = t.timer.expires.tv64 & 0xFFFFFFFF;
+       restart->arg3 = t.timer.expires.tv64 >> 32;
 
        return -ERESTART_RESTARTBLOCK;
 }