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SubjectRe: [patch 5/5] mm: vmstat_refresh: avoid queueing work item if cpu stats are clean
Hi Marcelo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/sched/core]
[also build test ERROR on v5.13]
[cannot apply to hnaz-linux-mm/master tip/master linus/master tip/core/entry next-20210709]
[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]

base: 031e3bd8986fffe31e1ddbf5264cccfe30c9abd7
config: arm64-randconfig-r012-20210709 (attached as .config)
compiler: clang version 13.0.0 ( 8d69635ed9ecf36fd0ca85906bfde17949671cbe)
reproduce (this is a W=1 build):
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
git remote add linux-review
git fetch --no-tags linux-review Marcelo-Tosatti/optionally-perform-deferred-actions-on-return-to-userspace/20210710-021217
git checkout 91934f6f1fd6271ef8af8ec384868558014e371b
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <>

All errors (new ones prefixed by >>):

>> mm/vmstat.c:1909:11: error: no member named 'expire' in 'struct per_cpu_pageset'
if (!p->expire)
~ ^
1 error generated.

vim +1909 mm/vmstat.c

1897 #ifdef CONFIG_PROC_FS
1898 static bool need_drain_remote_zones(int cpu)
1899 {
1900 struct zone *zone;
1902 for_each_populated_zone(zone) {
1903 struct per_cpu_pageset *p;
1905 p = per_cpu_ptr(zone->pageset, cpu);
1907 if (!p->pcp.count)
1908 continue;
> 1909 if (!p->expire)
1910 continue;
1911 if (zone_to_nid(zone) == cpu_to_node(cpu))
1912 continue;
1914 return true;
1915 }
1917 return false;
1918 }

0-DAY CI Kernel Test Service, Intel Corporation
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