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authorMuchun Song <songmuchun@bytedance.com>2021-11-05 21:37:56 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-06 21:30:35 +0100
commite80216d9f1f5c90b3cab834cd4fb492d731f70aa (patch)
treed29e2a43ba2f183703392ab4e3af4c9fc8486d45 /include
parentmm: memcontrol: remove kmemcg_id reparenting (diff)
downloadlinux-e80216d9f1f5c90b3cab834cd4fb492d731f70aa.tar.xz
linux-e80216d9f1f5c90b3cab834cd4fb492d731f70aa.zip
mm: memcontrol: remove the kmem states
Now the kmem states is only used to indicate whether the kmem is offline. However, we can set ->kmemcg_id to -1 to indicate whether the kmem is offline. Finally, we can remove the kmem states to simplify the code. Link: https://lkml.kernel.org/r/20211025125259.56624-1-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Acked-by: Roman Gushchin <guro@fb.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/memcontrol.h7
1 files changed, 0 insertions, 7 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 3096c9a0ee01..f207f98bdb76 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -180,12 +180,6 @@ struct mem_cgroup_thresholds {
struct mem_cgroup_threshold_ary *spare;
};
-enum memcg_kmem_state {
- KMEM_NONE,
- KMEM_ALLOCATED,
- KMEM_ONLINE,
-};
-
#if defined(CONFIG_SMP)
struct memcg_padding {
char x[0];
@@ -318,7 +312,6 @@ struct mem_cgroup {
#ifdef CONFIG_MEMCG_KMEM
int kmemcg_id;
- enum memcg_kmem_state kmem_state;
struct obj_cgroup __rcu *objcg;
struct list_head objcg_list; /* list of inherited objcgs */
#endif