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SubjectRe: [PATCH v2] memcg: charge before adding to swapcache on swapin
Hi Shakeel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20210222]
[cannot apply to linus/master hnaz-linux-mm/master v5.11 v5.11-rc7 v5.11-rc6 v5.11]
[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: 37dfbfbdca66834bc0f64ec9b35e09ac6c8898da
config: arm-colibri_pxa300_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git remote add linux-review
git fetch --no-tags linux-review Shakeel-Butt/memcg-charge-before-adding-to-swapcache-on-swapin/20210223-135711
git checkout 7ad6fb47580886394809b563b7476954a35f3054
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm

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

All warnings (new ones prefixed by >>):

In file included from include/linux/swap.h:9,
from mm/swap_state.c:13:
include/linux/memcontrol.h:1149:1: error: expected identifier or '(' before '{' token
1149 | {
| ^
>> include/linux/memcontrol.h:1147:19: warning: 'mem_cgroup_charge_swapin_page' used but never defined
1147 | static inline int mem_cgroup_charge_swapin_page(struct page *page,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/mem_cgroup_charge_swapin_page +1147 include/linux/memcontrol.h

> 1147 static inline int mem_cgroup_charge_swapin_page(struct page *page,
1148 struct mm_struct *mm, gfp_t gfp, swp_entry_t entry);
> 1149 {
1150 return 0;
1151 }

0-DAY CI Kernel Test Service, Intel Corporation
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