From nobody Fri Sep 5 08:00:51 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2425AEB64DA for ; Tue, 18 Jul 2023 06:35:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231290AbjGRGfX (ORCPT ); Tue, 18 Jul 2023 02:35:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230464AbjGRGfV (ORCPT ); Tue, 18 Jul 2023 02:35:21 -0400 Received: from mail.208.org (unknown [183.242.55.162]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDDB6100 for ; Mon, 17 Jul 2023 23:35:17 -0700 (PDT) Received: from mail.208.org (email.208.org [127.0.0.1]) by mail.208.org (Postfix) with ESMTP id 4R4q2772CdzBR1P0 for ; Tue, 18 Jul 2023 14:35:11 +0800 (CST) Authentication-Results: mail.208.org (amavisd-new); dkim=pass reason="pass (just generated, assumed good)" header.d=208.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=208.org; h= content-transfer-encoding:content-type:message-id:user-agent :references:in-reply-to:subject:to:from:date:mime-version; s= dkim; t=1689662111; x=1692254112; bh=yn+JWbmBbrWw3KEkIDHioGPetU/ l5QIFVV2S6Fv5Pwo=; b=ovUFLSVD19HJxV23ehOi+7nrhXQL3NJbFb+7jgmaeyk Y+wkxzS3Xi0rnxoW6Mur0siiYqV7m+s6b+bAFkAa1AW+/v6wLVD6rBf6EZzoKw0J jYX/0NlfY7TAX28IIXyVLBSKvLocwSkFJtkIaPqxmJSExSshzeOicADarIZf9zUL Y8hCuXHh3JdeLvAcF9NvY5VqoTRMcQMCrRMcE0x7NVjM0jzEhdky2c2dWClR6kLd 61703zycC54gsVK6eaZ2pkAH3x3cl2JpcHGOZTr7i4BsOdt6hngKWyU3ckkPB16p RsAW3Bk22wSbq3RSRu9iwYHAb89U77ATJ3s8nxy1q2Q== X-Virus-Scanned: amavisd-new at mail.208.org Received: from mail.208.org ([127.0.0.1]) by mail.208.org (mail.208.org [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id dqOxMzrkgCIB for ; Tue, 18 Jul 2023 14:35:11 +0800 (CST) Received: from localhost (email.208.org [127.0.0.1]) by mail.208.org (Postfix) with ESMTPSA id 4R4q2747MQzBQslS; Tue, 18 Jul 2023 14:35:11 +0800 (CST) MIME-Version: 1.0 Date: Tue, 18 Jul 2023 14:35:11 +0800 From: sunran001@208suo.com To: dennis@kernel.org, tj@kernel.org, cl@linux.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm/percpu.c: change GFP_KERNEL to GFP_ATOMIC In-Reply-To: <20230718063328.16140-1-xujianghui@cdjrlc.com> References: <20230718063328.16140-1-xujianghui@cdjrlc.com> User-Agent: Roundcube Webmail Message-ID: <7aa3a1cee63518cb13906d11ea130c9c@208suo.com> X-Sender: sunran001@208suo.com Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8"; format="flowed" ERROR: function pcpu_balance_populated called on line 2238 inside lock on line 2234 but uses GFP_KERNEL Generated by: scripts/coccinelle/locks/call_kern.cocci Signed-off-by: Ran Sun --- mm/percpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/percpu.c b/mm/percpu.c index 28e07ede46f6..d8809c7511cd 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -2033,7 +2033,7 @@ static void pcpu_balance_free(bool empty_only) static void pcpu_balance_populated(void) { /* gfp flags passed to underlying allocators */ - const gfp_t gfp =3D GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN; + const gfp_t gfp =3D GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; struct pcpu_chunk *chunk; int slot, nr_to_pop, ret;