"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.
Signed-off-by: Chris Down <ch...@chrisdown.name>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Kirill Tkhai <ktk...@virtuozzo.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Tejun Heo <t...@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: cgro...@vger.kernel.org
Cc: linux...@kvack.org
Cc: kernel-t...@fb.com
---
include/linux/memcontrol.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 534267947664..b226c4bafc93 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1147,6 +1147,12 @@ static inline void count_memcg_events(struct mem_cgroup
*memcg,
{
}
+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)
{
--
2.21.0
