This resolves an issue with obj_cgroup_get() not being defined if
CONFIG_MEMCG is not defined.
Before this patch, we would see build errors if obj_cgroup_get() is
called from code that is agnostic of CONFIG_MEMCG.
The zswap_store() changes for large folios in subsequent commits will
require the use of obj_cgroup_get() in zswap code that falls into this
category.
Signed-off-by: Kanchana P Sridhar <kanchana.p.sridhar@xxxxxxxxx>
Reviewed-by: Nhat Pham <nphamcs@xxxxxxxxx>
Reviewed-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Reviewed-by: Chengming Zhou <chengming.zhou@xxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
---
include/linux/memcontrol.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 34d2da05f2f1..15c2716f9aa3 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1282,6 +1282,10 @@ struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css)
return NULL;
}
+static inline void obj_cgroup_get(struct obj_cgroup *objcg)
+{
+}
+
static inline void obj_cgroup_put(struct obj_cgroup *objcg)
{
}
--
2.27.0
