Message ID | 20250417084330.937380-1-nichen@iscas.ac.cn (mailing list archive) |
---|---|
State | New |
Headers | show
Return-Path: <owner-linux-mm@kvack.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14569C369B2 for <linux-mm@archiver.kernel.org>; Thu, 17 Apr 2025 08:44:00 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id AE341280088; Thu, 17 Apr 2025 04:43:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A91FE280086; Thu, 17 Apr 2025 04:43:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 95A7B280088; Thu, 17 Apr 2025 04:43:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 742D9280086 for <linux-mm@kvack.org>; Thu, 17 Apr 2025 04:43:59 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 9160681548 for <linux-mm@kvack.org>; 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imf06.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf06.hostedemail.com: domain of nichen@iscas.ac.cn designates 159.226.251.81 as permitted sender) smtp.mailfrom=nichen@iscas.ac.cn ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1744879438; a=rsa-sha256; cv=none; b=o2NET6NyZNvjQfXHOtl87RzZGF18fX31mcBDG9aPi+4HWI0LIUsMFaUUlUFCPgpl2NV+De O0SWVtm8Fx+kZ0/s7YEndjbACyUM31YZIQeI3AoEqMaCGhuoVqbPqWi9orrY/X+E6OM0Of RU2Gogj9YaxgYxguRH09wpm49afeac4= Received: from localhost (unknown [124.16.138.129]) by APP-03 (Coremail) with SMTP id rQCowAAnzTlHvwBog7+ACQ--.9690S2; Thu, 17 Apr 2025 16:43:51 +0800 (CST) From: Chen Ni <nichen@iscas.ac.cn> To: hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, akpm@linux-foundation.org Cc: cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Chen Ni <nichen@iscas.ac.cn> Subject: [PATCH] mm: memcontrol: remove unnecessary NULL check before free_percpu() Date: Thu, 17 Apr 2025 16:43:30 +0800 Message-Id: <20250417084330.937380-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: rQCowAAnzTlHvwBog7+ACQ--.9690S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Xw43Ww4fGr1fKw4UGw4UJwb_yoWxCwc_uF Wkta4kKr1UAryFkr9rAw1SyFy2va909ayIqF4jqry7JFykt3s8u3y7KrW7Xr1kWFyDJay7 KryDJF47WFy2kjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbfxFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26F4j6r4UJwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E 8cxan2IY04v7MxkF7I0En4kS14v26r1q6r43MxkIecxEwVAFwVW8ZwCF04k20xvY0x0EwI xGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480 Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7 IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k2 6cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxV AFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUHlksUUUUU= X-Originating-IP: [124.16.138.129] X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 8980818000D X-Stat-Signature: juynpmpwjc144zbhgppaoy16otjr8c89 X-HE-Tag: 1744879436-852156 X-HE-Meta: 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 Uuj8DDzV +IyLQGBaK3iSln6k1AuoXndgOGUL9AN+7lCP4ZzjQp23tXfgEElP8gVIrzrQT/9KcOQCPQp75zx1BYqJ5H6VkMP/qDqxQBQP5skGSXOCMiCGWEGO5cxMS0LRCxwVoXPa84vyOgCr2doBX5Cwn+ZEXzxWhbUYg0tPJ3ph50kx4nLZWs6vLn/5Xyzz7Gt8P8DAiyL2GaxfBmKlLplJiVhOGKSHguoZiMYRMh0EwFmQvSBCtRvUKGi+Er03Ijg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> List-Subscribe: <mailto:majordomo@kvack.org> List-Unsubscribe: <mailto:majordomo@kvack.org> |
Series |
mm: memcontrol: remove unnecessary NULL check before free_percpu()
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diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c index 4a9cf27a70af..54c49cbfc968 100644 --- a/mm/memcontrol-v1.c +++ b/mm/memcontrol-v1.c @@ -2198,8 +2198,7 @@ bool memcg1_alloc_events(struct mem_cgroup *memcg) void memcg1_free_events(struct mem_cgroup *memcg) { - if (memcg->events_percpu) - free_percpu(memcg->events_percpu); + free_percpu(memcg->events_percpu); } static int __init memcg1_init(void)
free_percpu() checks for NULL pointers internally. Remove unneeded NULL check here. Signed-off-by: Chen Ni <nichen@iscas.ac.cn> --- mm/memcontrol-v1.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)