From 1f391eb270791359ee79031945dbe3afeaec6ce3 Mon Sep 17 00:00:00 2001 From: Muchun Song <songmuchun@bytedance.com> Date: Tue, 22 Mar 2022 14:41:22 -0700 Subject: mm: list_lru: rename memcg_drain_all_list_lrus to memcg_reparent_list_lrus The purpose of the memcg_drain_all_list_lrus() is list_lrus reparenting. It is very similar to memcg_reparent_objcgs(). Rename it to memcg_reparent_list_lrus() so that the name can more consistent with memcg_reparent_objcgs(). Link: https://lkml.kernel.org/r/20220228122126.37293-12-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> --- mm/list_lru.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'mm/list_lru.c') diff --git a/mm/list_lru.c b/mm/list_lru.c index fc938d8ff48f..488dacd1f8ff 100644 --- a/mm/list_lru.c +++ b/mm/list_lru.c @@ -457,8 +457,8 @@ int memcg_update_all_list_lrus(int new_size) return ret; } -static void memcg_drain_list_lru_node(struct list_lru *lru, int nid, - int src_idx, struct mem_cgroup *dst_memcg) +static void memcg_reparent_list_lru_node(struct list_lru *lru, int nid, + int src_idx, struct mem_cgroup *dst_memcg) { struct list_lru_node *nlru = &lru->node[nid]; int dst_idx = dst_memcg->kmemcg_id; @@ -486,22 +486,22 @@ out: spin_unlock_irq(&nlru->lock); } -static void memcg_drain_list_lru(struct list_lru *lru, - int src_idx, struct mem_cgroup *dst_memcg) +static void memcg_reparent_list_lru(struct list_lru *lru, + int src_idx, struct mem_cgroup *dst_memcg) { int i; for_each_node(i) - memcg_drain_list_lru_node(lru, i, src_idx, dst_memcg); + memcg_reparent_list_lru_node(lru, i, src_idx, dst_memcg); memcg_list_lru_free(lru, src_idx); } -void memcg_drain_all_list_lrus(struct mem_cgroup *src, struct mem_cgroup *dst) +void memcg_reparent_list_lrus(struct mem_cgroup *memcg, struct mem_cgroup *parent) { struct cgroup_subsys_state *css; struct list_lru *lru; - int src_idx = src->kmemcg_id; + int src_idx = memcg->kmemcg_id; /* * Change kmemcg_id of this cgroup and all its descendants to the @@ -517,17 +517,17 @@ void memcg_drain_all_list_lrus(struct mem_cgroup *src, struct mem_cgroup *dst) * call. */ rcu_read_lock(); - css_for_each_descendant_pre(css, &src->css) { - struct mem_cgroup *memcg; + css_for_each_descendant_pre(css, &memcg->css) { + struct mem_cgroup *child; - memcg = mem_cgroup_from_css(css); - memcg->kmemcg_id = dst->kmemcg_id; + child = mem_cgroup_from_css(css); + child->kmemcg_id = parent->kmemcg_id; } rcu_read_unlock(); mutex_lock(&list_lrus_mutex); list_for_each_entry(lru, &memcg_list_lrus, list) - memcg_drain_list_lru(lru, src_idx, dst); + memcg_reparent_list_lru(lru, src_idx, parent); mutex_unlock(&list_lrus_mutex); } -- cgit v1.2.3