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SubjectRe: [patch v2] mm, oom: fix unnecessary killing of additional processes
Hi David,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v4.18-rc1 next-20180621]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/David-Rientjes/mm-oom-fix-unnecessary-killing-of-additional-processes/20180621-060118
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

include/linux/nodemask.h:265:16: sparse: expression using sizeof(void)
include/linux/nodemask.h:271:16: sparse: expression using sizeof(void)
include/linux/nodemask.h:265:16: sparse: expression using sizeof(void)
include/linux/nodemask.h:271:16: sparse: expression using sizeof(void)
>> mm/oom_kill.c:656:5: sparse: symbol 'oom_free_timeout_ms' was not declared. Should it be static?
include/linux/rcupdate.h:683:9: sparse: context imbalance in 'find_lock_task_mm' - wrong count at exit
include/linux/sched/mm.h:141:37: sparse: dereference of noderef expression
mm/oom_kill.c:218:28: sparse: context imbalance in 'oom_badness' - unexpected unlock
mm/oom_kill.c:398:9: sparse: context imbalance in 'dump_tasks' - different lock contexts for basic block
include/linux/rcupdate.h:683:9: sparse: context imbalance in 'oom_kill_process' - unexpected unlock

Please review and possibly fold the followup patch.

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

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