Messages in this thread | | | Date | Thu, 12 Nov 2009 09:00:25 +0900 | From | Hidetoshi Seto <> | Subject | Re: [PATCH] fix granularity of task_u/stime() |
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Stanislaw Gruszka wrote: > On Tue, Nov 10, 2009 at 02:47:34PM +0900, Hidetoshi Seto wrote: >> Remove casting to clock_t from task_u/stime(), and keep granularity of >> cputime_t over the calculation. >> >> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> >> --- >> kernel/sched.c | 21 ++++++++++++--------- >> 1 files changed, 12 insertions(+), 9 deletions(-) >> >> diff --git a/kernel/sched.c b/kernel/sched.c >> index 28dd4f4..1632e82 100644 >> --- a/kernel/sched.c >> +++ b/kernel/sched.c >> @@ -5171,41 +5171,44 @@ cputime_t task_stime(struct task_struct *p) >> return p->stime; >> } >> #else >> + >> +#ifndef nsecs_to_cputime >> +# define nsecs_to_cputime(__nsecs) msecs_to_cputime((__nsecs) / NSEC_PER_MSEC) >> +#endif >> + > > I would like to test, but unfortunately with the patch kernel not build > on my system: > > kernel/built-in.o: In function `task_utime': > /usr/src/rhel5/linux-2.6/kernel/sched.c:5187: undefined reference to > `__udivdi3' > kernel/built-in.o: In function `task_stime': > /usr/src/rhel5/linux-2.6/kernel/sched.c:5208: undefined reference to > `__udivdi3' > make: *** [.tmp_vmlinux1] Error 1
Wow, what arch? Could you provide your .config?
Thanks, H.Seto
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