mm: memcg: remove redundant seq_buf_has_overflowed()
Both the end of memory_stat_format() and memcg_stat_format() will call WARN_ON_ONCE(seq_buf_has_overflowed()). However, memory_stat_format() is the only caller of memcg_stat_format(), when memcg is on the default hierarchy, seq_buf_has_overflowed() will be executed twice, so remove the redundant one. Link: https://lkml.kernel.org/r/20240626094232.2432891-1-xiujianfeng@huawei.comSigned-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Shakeel Butt <shakeelb@google.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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