Re: [PATCH] memcg-v1: Enable setting memory min, low, high

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Hi Shaun,

kernel test robot noticed the following build errors:

[auto build test ERROR on v6.3-rc5]
[also build test ERROR on linus/master]
[cannot apply to akpm-mm/mm-everything next-20230404]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shaun-Tancheff/memcg-v1-Enable-setting-memory-min-low-high/20230405-045143
patch link:    https://lore.kernel.org/r/20230404205013.31520-1-shaun.tancheff%40gmail.com
patch subject: [PATCH] memcg-v1: Enable setting memory min, low, high
config: i386-randconfig-a011-20230403 (https://download.01.org/0day-ci/archive/20230405/202304051011.6E3fABwV-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/180e4266c809a61c2711599c6462bd719efed76c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Shaun-Tancheff/memcg-v1-Enable-setting-memory-min-low-high/20230405-045143
        git checkout 180e4266c809a61c2711599c6462bd719efed76c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202304051011.6E3fABwV-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   ld: mm/memcontrol.o: in function `mem_cgroup_v1_set_defaults':
>> mm/memcontrol.c:3878: undefined reference to `__udivdi3'


vim +3878 mm/memcontrol.c

  3853	
  3854	static inline void mem_cgroup_v1_set_defaults(struct mem_cgroup *memcg,
  3855						       u64 nr_pages)
  3856	{
  3857		u64 max = (u64)(PAGE_COUNTER_MAX * PAGE_SIZE) / PAGE_SIZE;
  3858		u64 min, low, high;
  3859	
  3860		if (mem_cgroup_is_root(memcg) || max == nr_pages)
  3861			return;
  3862	
  3863		min = READ_ONCE(memcg->memory.min);
  3864		low = READ_ONCE(memcg->memory.low);
  3865		if (min || low)
  3866			return;
  3867	
  3868		if (!min && memcg_v1_min_default_percent) {
  3869			min = (nr_pages * memcg_v1_min_default_percent) / 100;
  3870			page_counter_set_min(&memcg->memory, min);
  3871		}
  3872		if (!low && memcg_v1_low_default_percent) {
  3873			low = (nr_pages * memcg_v1_low_default_percent) / 100;
  3874			page_counter_set_low(&memcg->memory, low);
  3875		}
  3876		high = READ_ONCE(memcg->memory.high);
  3877		if (high == PAGE_COUNTER_MAX && memcg_v1_high_default_percent) {
> 3878			high = (nr_pages * memcg_v1_high_default_percent) / 100;
  3879			page_counter_set_high(&memcg->memory, high);
  3880		}
  3881	}
  3882	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests



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