The patch titled Subject: fixup: vmscan: Fix build on !CONFIG_MEMCG from nr_deactivate changes has been added to the -mm tree. Its filename is mm-move-nr_deactivate-accounting-to-shrink_active_list-fix.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-move-nr_deactivate-accounting-to-shrink_active_list-fix.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-move-nr_deactivate-accounting-to-shrink_active_list-fix.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Chris Down <chris@xxxxxxxxxxxxxx> Subject: fixup: vmscan: Fix build on !CONFIG_MEMCG from nr_deactivate changes "mm: move nr_deactivate accounting to shrink_active_list()" uses the non-irqsaved version of count_memcg_events (__count_memcg_events), but we've only exported the irqsaving version of it to userspace, so the build breaks: mm/vmscan.c: In function `shrink_active_list': mm/vmscan.c:2101:2: error: implicit declaration of function `__count_memcg_events'; did you mean `count_memcg_events'? [-Werror=implicit-function-declaration] This fixup makes it build with !CONFIG_MEMCG. Link: http://lkml.kernel.org/r/20190322150513.GA22021@xxxxxxxxxxxxxx Signed-off-by: Chris Down <chris@xxxxxxxxxxxxxx> Cc: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/memcontrol.h | 6 ++++++ 1 file changed, 6 insertions(+) --- a/include/linux/memcontrol.h~mm-move-nr_deactivate-accounting-to-shrink_active_list-fix +++ a/include/linux/memcontrol.h @@ -1114,6 +1114,12 @@ static inline void count_memcg_events(st { } +static inline void __count_memcg_events(struct mem_cgroup *memcg, + enum vm_event_item idx, + unsigned long count) +{ +} + static inline void count_memcg_page_event(struct page *page, int idx) { _ Patches currently in -mm which might be from chris@xxxxxxxxxxxxxx are mm-move-nr_deactivate-accounting-to-shrink_active_list-fix.patch mm-proportional-memorylowmin-reclaim.patch mm-make-memoryemin-the-baseline-for-utilisation-determination.patch mm-memcg-make-scan-aggression-always-exclude-protection.patch mm-rename-ambiguously-named-memorystat-counters-and-functions.patch mm-consider-subtrees-in-memoryevents.patch