The patch titled
Subject: memcg: cleanup with !CONFIG_MEMCG_V1
has been added to the -mm mm-unstable branch. Its filename is
memcg-cleanup-with-config_memcg_v1.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/memcg-cleanup-with-config_memcg_v1.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Michal Koutný <mkoutny@xxxxxxxx>
Subject: memcg: cleanup with !CONFIG_MEMCG_V1
Date: Mon, 9 Sep 2024 18:32:20 +0200
Patch series "Followups to controllers' v1 compilation".
The group of patches builds upon recent dissection of memory and cpuset
controller v1 code to under a separate configuration option. The goal of
them patches is to produce behavior that appears to v1 controlelr users
same like if the controller wasn't compiled at all (and no change to v2
users). Plus there are two preceding patches with cleanups I came across
when looking at the new code.
This patch (of 4):
Extern declarations have no definitions with !CONFIG_MEMCG_V1 and no
users, drop them altogether.
Link: https://lkml.kernel.org/r/20240909163223.3693529-1-mkoutny@xxxxxxxx
Link: https://lkml.kernel.org/r/20240909163223.3693529-2-mkoutny@xxxxxxxx
Signed-off-by: Michal Koutný <mkoutny@xxxxxxxx>
Acked-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>
Cc: Chen Ridong <chenridong@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Zefan Li <lizefan.x@xxxxxxxxxxxxx>
Cc: Waiman Long <longman@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol-v1.h | 2 --
1 file changed, 2 deletions(-)
--- a/mm/memcontrol-v1.h~memcg-cleanup-with-config_memcg_v1
+++ a/mm/memcontrol-v1.h
@@ -154,8 +154,6 @@ static inline bool memcg1_charge_skmem(s
gfp_t gfp_mask) { return true; }
static inline void memcg1_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages) {}
-extern struct cftype memsw_files[];
-extern struct cftype mem_cgroup_legacy_files[];
#endif /* CONFIG_MEMCG_V1 */
#endif /* __MM_MEMCONTROL_V1_H */
_
Patches currently in -mm which might be from mkoutny@xxxxxxxx are
memcg-cleanup-with-config_memcg_v1.patch
cgroup-cpuset-expose-cpuset-filesystem-with-cpuset-v1-only.patch
cgroup-disallow-mounting-v1-hierarchies-without-controller-implementation.patch
cgroup-do-not-report-unavailable-v1-controllers-in-proc-cgroups.patch
