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mm: memcontrol: rename memcg_cache_id to memcg_kmem_id

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The memcg_cache_id() introduced by commit 2633d7a028 ("slab/slub:
consider a memcg parameter in kmem_create_cache") is used to index in the
kmem_cache->memcg_params->memcg_caches array.  Since
kmem_cache->memcg_params.memcg_caches has been removed by commit
9855609bde ("mm: memcg/slab: use a single set of kmem_caches for all
accounted allocations").  So the name does not need to reflect cache
related.  Just rename it to memcg_kmem_id.  And it can reflect kmem
related.

Link: https://lkml.kernel.org/r/20220228122126.37293-17-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Alex Shi <alexs@kernel.org>
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: Chao Yu <chao@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Fam Zheng <fam.zheng@bytedance.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kari Argillander <kari.argillander@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Muchun Song 2022-03-22 14:41:38 -07:00 committed by Linus Torvalds
parent d70110704d
commit 7c52f65de4
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/memcontrol.h
View File

@ -1708,7 +1708,7 @@ static inline void memcg_kmem_uncharge_page(struct page *page, int order)
* A helper for accessing memcg's kmem_id, used for getting
* corresponding LRU lists.
*/
static inline int memcg_cache_id(struct mem_cgroup *memcg)
static inline int memcg_kmem_id(struct mem_cgroup *memcg)
{
return memcg ? memcg->kmemcg_id : -1;
}
@ -1746,7 +1746,7 @@ static inline bool memcg_kmem_enabled(void)
return false;
}
static inline int memcg_cache_id(struct mem_cgroup *memcg)
static inline int memcg_kmem_id(struct mem_cgroup *memcg)
{
return -1;
}

8
mm/list_lru.c
View File

@ -75,7 +75,7 @@ list_lru_from_kmem(struct list_lru *lru, int nid, void *ptr,
if (!memcg)
goto out;
l = list_lru_from_memcg_idx(lru, nid, memcg_cache_id(memcg));
l = list_lru_from_memcg_idx(lru, nid, memcg_kmem_id(memcg));
out:
if (memcg_ptr)
*memcg_ptr = memcg;
@ -182,7 +182,7 @@ unsigned long list_lru_count_one(struct list_lru *lru,
long count;
rcu_read_lock();
l = list_lru_from_memcg_idx(lru, nid, memcg_cache_id(memcg));
l = list_lru_from_memcg_idx(lru, nid, memcg_kmem_id(memcg));
count = l ? READ_ONCE(l->nr_items) : 0;
rcu_read_unlock();
@ -273,7 +273,7 @@ list_lru_walk_one(struct list_lru *lru, int nid, struct mem_cgroup *memcg,
unsigned long ret;
spin_lock(&nlru->lock);
ret = __list_lru_walk_one(lru, nid, memcg_cache_id(memcg), isolate,
ret = __list_lru_walk_one(lru, nid, memcg_kmem_id(memcg), isolate,
cb_arg, nr_to_walk);
spin_unlock(&nlru->lock);
return ret;
@ -289,7 +289,7 @@ list_lru_walk_one_irq(struct list_lru *lru, int nid, struct mem_cgroup *memcg,
unsigned long ret;
spin_lock_irq(&nlru->lock);
ret = __list_lru_walk_one(lru, nid, memcg_cache_id(memcg), isolate,
ret = __list_lru_walk_one(lru, nid, memcg_kmem_id(memcg), isolate,
cb_arg, nr_to_walk);
spin_unlock_irq(&nlru->lock);
return ret;