From: Roman Gushchin <guro@xxxxxx> Subject: mm: kmem: cleanup memcg_kmem_uncharge_memcg() arguments Drop the unused page argument and put the memcg pointer at the first place. This make the function consistent with its peers: __memcg_kmem_uncharge_memcg(), memcg_kmem_charge_memcg(), etc. Link: http://lkml.kernel.org/r/20200109202659.752357-3-guro@xxxxxx Signed-off-by: Roman Gushchin <guro@xxxxxx> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/memcontrol.h | 4 ++-- mm/slab.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) --- a/include/linux/memcontrol.h~mm-kmem-cleanup-memcg_kmem_uncharge_memcg-arguments +++ a/include/linux/memcontrol.h @@ -1414,8 +1414,8 @@ static inline int memcg_kmem_charge_memc return 0; } -static inline void memcg_kmem_uncharge_memcg(struct page *page, int order, - struct mem_cgroup *memcg) +static inline void memcg_kmem_uncharge_memcg(struct mem_cgroup *memcg, + int order) { if (memcg_kmem_enabled()) __memcg_kmem_uncharge_memcg(memcg, 1 << order); --- a/mm/slab.h~mm-kmem-cleanup-memcg_kmem_uncharge_memcg-arguments +++ a/mm/slab.h @@ -395,7 +395,7 @@ static __always_inline void memcg_unchar if (likely(!mem_cgroup_is_root(memcg))) { lruvec = mem_cgroup_lruvec(memcg, page_pgdat(page)); mod_lruvec_state(lruvec, cache_vmstat_idx(s), -(1 << order)); - memcg_kmem_uncharge_memcg(page, order, memcg); + memcg_kmem_uncharge_memcg(memcg, order); } else { mod_node_page_state(page_pgdat(page), cache_vmstat_idx(s), -(1 << order)); _
