Re: mmotm 2019-07-24-21-39 uploaded (mm/memcontrol)

Andrew Morton
2019-07-25T23:40:03Z

On Thu, 25 Jul 2019 15:02:59 -0700 Randy Dunlap <rdunlap@infradead.org> wrote:

> On 7/24/19 9:40 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2019-07-24-21-39 has been uploaded to
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue. Uploaded at random hopefully
> > more than once a week.
> >
> > You will need quilt to apply these patches to the latest Linus release (5.x
> > or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> >
>
> on i386:
>
> ld: mm/memcontrol.o: in function `mem_cgroup_handle_over_high':
> memcontrol.c:(.text+0x6235): undefined reference to `__udivdi3'

Thanks. This?

--- a/mm/memcontrol.c~mm-throttle-allocators-when-failing-reclaim-over-memoryhigh-fix-fix
+++ a/mm/memcontrol.c
@@ -2414,8 +2414,9 @@ void mem_cgroup_handle_over_high(void)
*/
clamped_high = max(high, 1UL);

- overage = ((u64)(usage - high) << MEMCG_DELAY_PRECISION_SHIFT)
- / clamped_high;
+ overage = (u64)(usage - high) << MEMCG_DELAY_PRECISION_SHIFT;
+ do_div(overage, clamped_high);
+
penalty_jiffies = ((u64)overage * overage * HZ)
>> (MEMCG_DELAY_PRECISION_SHIFT + MEMCG_DELAY_SCALING_SHIFT);

_