From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C7B0C6453 for ; Tue, 22 Mar 2022 21:40:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76B14C340EE; Tue, 22 Mar 2022 21:40:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1647985214; bh=HxZoLzTj6RCg+j3ovTGgyoE0bXf5C530MJKDVUt8Zm4=; h=Date:To:From:In-Reply-To:Subject:From; b=xqVDj6fhSnn0Xf78q0BhffN8zlovUFJSZBbIjFb7NBmC01d0DNciDXPGEK2aOsSKc 0X/EI/gV63RNlxPo9Z8IokP3nMJS5FJG8yMkPETTbz+QC8Zgbg2lz/PWl9QmmkV5P/ SMv3Yd4VJ2HgYnVzt4/G8KOuTolMyhOacdgowlLI= Date: Tue, 22 Mar 2022 14:40:13 -0700 To: vdavydov.dev@gmail.com,vbabka@suse.cz,surenb@google.com,songmuchun@bytedance.com,shy828301@gmail.com,shakeelb@google.com,rppt@linux.ibm.com,roman.gushchin@linux.dev,mhocko@suse.com,hannes@cmpxchg.org,guro@fb.com,richard.weiyang@gmail.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 034/227] mm/memcg: mem_cgroup_per_node is already set to 0 on allocation Message-Id: <20220322214014.76B14C340EE@smtp.kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: From: Wei Yang Subject: mm/memcg: mem_cgroup_per_node is already set to 0 on allocation kzalloc_node() would set data to 0, so it's not necessary to set it again. Link: https://lkml.kernel.org/r/20220201004643.8391-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang Reviewed-by: Muchun Song Acked-by: Michal Hocko Reviewed-by: Roman Gushchin Reviewed-by: Mike Rapoport Reviewed-by: Shakeel Butt Cc: Roman Gushchin Cc: Johannes Weiner Cc: Suren Baghdasaryan Cc: Vladimir Davydov Cc: Vlastimil Babka Cc: Yang Shi Signed-off-by: Andrew Morton --- mm/memcontrol.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/memcontrol.c~mm-memcg-mem_cgroup_per_node-is-already-set-to-0-on-allocation +++ a/mm/memcontrol.c @@ -5105,8 +5105,6 @@ static int alloc_mem_cgroup_per_node_inf } lruvec_init(&pn->lruvec); - pn->usage_in_excess = 0; - pn->on_tree = false; pn->memcg = memcg; memcg->nodeinfo[node] = pn; _