From: Oleg Nesterov <oleg@tv-sign.ru>
To: linux-kernel@vger.kernel.org
Cc: Roland McGrath <roland@redhat.com>, Andrew Morton <akpm@osdl.org>
Subject: [PATCH] fix 32bit overflow in timespec_to_sample()
Date: Thu, 24 Nov 2005 19:02:00 +0300 [thread overview]
Message-ID: <4385E3F8.DB0F3E10@tv-sign.ru> (raw)
fix 32bit overflow in timespec_to_sample()
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
--- 2.6.14-rc/kernel/posix-cpu-timers.c~ 2005-10-26 23:33:12.000000000 +0400
+++ 2.6.14-rc/kernel/posix-cpu-timers.c 2005-10-26 23:35:53.000000000 +0400
@@ -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);
}
reply other threads:[~2005-11-24 14:47 UTC|newest]
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