The quilt patch titled
Subject: mm: define obj_cgroup_get() if CONFIG_MEMCG is not defined
has been removed from the -mm tree. Its filename was
mm-define-obj_cgroup_get-if-config_memcg-is-not-defined.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Kanchana P Sridhar <kanchana.p.sridhar@xxxxxxxxx>
Subject: mm: define obj_cgroup_get() if CONFIG_MEMCG is not defined
Date: Mon, 30 Sep 2024 22:32:16 -0700
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.
Link: https://lkml.kernel.org/r/20241001053222.6944-2-kanchana.p.sridhar@xxxxxxxxx
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>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
Cc: Shakeel Butt <shakeel.butt@xxxxxxxxx>
Cc: Usama Arif <usamaarif642@xxxxxxxxx>
Cc: Wajdi Feghali <wajdi.k.feghali@xxxxxxxxx>
Cc: "Zou, Nanhai" <nanhai.zou@xxxxxxxxx>
Cc: Barry Song <21cnbao@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 4 ++++
1 file changed, 4 insertions(+)
--- a/include/linux/memcontrol.h~mm-define-obj_cgroup_get-if-config_memcg-is-not-defined
+++ a/include/linux/memcontrol.h
@@ -1282,6 +1282,10 @@ struct mem_cgroup *mem_cgroup_from_css(s
return NULL;
}
+static inline void obj_cgroup_get(struct obj_cgroup *objcg)
+{
+}
+
static inline void obj_cgroup_put(struct obj_cgroup *objcg)
{
}
_
Patches currently in -mm which might be from kanchana.p.sridhar@xxxxxxxxx are
