Messages in this thread | | | Date | Sat, 22 Feb 2003 16:02:01 -0600 (CST) | From | Kai Germaschewski <> | Subject | Re: [PATCH] elapsed times wrap |
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On Sat, 22 Feb 2003, Hugh Dickins wrote:
> Userspace shows huge elapsed time across jiffies wrap: with USER_HZ > less then HZ, sys_times needs jiffies_64 to calculate its retval. > > --- 2.5.62/kernel/sys.c Sat Feb 15 08:30:12 2003 > +++ linux/kernel/sys.c Fri Feb 21 20:41:52 2003 > @@ -870,7 +870,7 @@ > if (copy_to_user(tbuf, &tmp, sizeof(struct tms))) > return -EFAULT; > } > - return jiffies_to_clock_t(jiffies); > + return (long) jiffies_64_to_clock_t(get_jiffies_64()); > }
That makes me wonder, aren't all uses of jiffies_to_clock_t() broken then? Well, all which take an absolute time as an argument at least.
--Kai
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