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fix 32bit overflow in timespec_to_sample()

PATCH New Oleg Nesterov 1 participant 1 message Nov 24, 2005

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Oleg Nesterov

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PATCH 1/1 fix 32bit overflow in timespec_to_sample()

fix 32bit overflow in timespec_to_sample()

Signed-off-by Oleg Nesterov <[email protected]>
kernel/posix-cpu-timers.c renamed from kernel/posix-cpu-timers.c~ +1 -1
@@ -36,7 +36,7 @@ timespec_to_sample(clockid_t which_clock
 	union cpu_time_count ret;
 	ret.sched = 0;		/* high half always zero when .cpu used */
 	if (CPUCLOCK_WHICH(which_clock) == CPUCLOCK_SCHED) {
-		ret.sched = tp->tv_sec * NSEC_PER_SEC + tp->tv_nsec;
+		ret.sched = (unsigned long long)tp->tv_sec * NSEC_PER_SEC + tp->tv_nsec;
 	} else {
 		ret.cpu = timespec_to_cputime(tp);
 	}