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mm: memcontrol: drop unused cpu argument from flush_nmi_stats

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flush_nmi_stats() does not use its cpu argument.  Remove it from the
function and its !CONFIG_MEMCG_NMI_SAFETY_REQUIRES_ATOMIC stub.  The
caller still uses cpu for the subsequent per-CPU rstat flush.

No functional change.

Link: https://lore.kernel.org/20260713090010.2991906-1-guopeng.zhang@linux.dev
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Guopeng Zhang 2026-07-13 17:00:10 +08:00 committed by Andrew Morton
parent 45b1ec4887
commit 219a53f6c8
1 changed files with 3 additions and 5 deletions
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8
mm/memcontrol.c
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@ -4433,8 +4433,7 @@ static void mem_cgroup_stat_aggregate(struct aggregate_control *ac)
}
#ifdef CONFIG_MEMCG_NMI_SAFETY_REQUIRES_ATOMIC
static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent,
int cpu)
static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent)
{
int nid;
@ -4485,8 +4484,7 @@ static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent,
}
}
#else
static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent,
int cpu)
static void flush_nmi_stats(struct mem_cgroup *memcg, struct mem_cgroup *parent)
{}
#endif
@ -4498,7 +4496,7 @@ static void mem_cgroup_css_rstat_flush(struct cgroup_subsys_state *css, int cpu)
struct aggregate_control ac;
int nid;
flush_nmi_stats(memcg, parent, cpu);
flush_nmi_stats(memcg, parent);
statc = per_cpu_ptr(memcg->vmstats_percpu, cpu);