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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w16-20020a05640234d000b0042e4da74023si8643753edc.515.2022.06.12.20.27.32; Sun, 12 Jun 2022 20:27:57 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=1NGXFsXF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=bytedance.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236104AbiFMDVm (ORCPT + 99 others); Sun, 12 Jun 2022 23:21:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231716AbiFMDVl (ORCPT ); Sun, 12 Jun 2022 23:21:41 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E534205F2 for ; Sun, 12 Jun 2022 20:21:41 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id 3-20020a17090a174300b001e426a02ac5so7584264pjm.2 for ; Sun, 12 Jun 2022 20:21:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=qbAkkO2zSW3z0Q8/BVx6T9JB6N1UA+DX5z/rLPoFpPg=; b=1NGXFsXFPUAUMfe9N4JthX1ALkYAWYMsOuYDyQtcQeW8WNFwZlcHItd6XrM+lng3UI Rt8zNF+zxAVQWenqcclBqxhu/Xxcn8j6sBXL0Vs/E0KHyZDDP8ejdsufZhWWAEQx8IUF aPs9uCjcBNIjeaM3oRwnjC7VxRpdjBRyJDmBA3koSCVptEqjkDJAp/clVapRzZK7ivQt vvIiT7jbLJuwAp1rHkKsK8q/MFc8GsBuxLrD/3Rh6x7b8DZ/wsoFLkc7jS2kZdxRtLkQ JbuYUgDS79x7n4D6hVdrAFjYjrBaho7I6QHY9iGc3X+OP24M9FH+2CgJEl9gSFtl/hNL 54jw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=qbAkkO2zSW3z0Q8/BVx6T9JB6N1UA+DX5z/rLPoFpPg=; b=VXgzRYlv3x+mX1QEuHrRrEmhYWc7EC1RFjLmJ29IXJ8w3ENY7eLe6/Cq+jn2HJ6ThR VrNlDK17Q0TNAR3A1GRb7SjRqvZCpk8B4XGvCLvHoqoPlVfRxkDfEczvhXLnNuuumpwy p/rzkcMJtxhatLN6h+2Eggxu8UjOPI5W0GFhxkDZhW2VFnVG4nr0lcMi9zsRAE8CI5b1 Mn+pJu5D46oaJPsdZe2fYCxDE74T9kjZuy/QziE5QDmdWrWbl06DAAEFWeQSPXtBgYGC aaGuN1DRa7yzNgnvuEuXwRB8Kg0SdmRJGCO4IVYsAfMCgtDfph02pPzEhbDyU0SHK+eA foFw== X-Gm-Message-State: AOAM533vIfe7AVQ2ozXlOIIGy5D3yS5X2wziTYxgBCuQ8nxOJXqAsiU0 hbWIFrSHUu/Y17NB1oLZ0atHwQ== X-Received: by 2002:a17:902:f612:b0:14c:e978:f99e with SMTP id n18-20020a170902f61200b0014ce978f99emr56667491plg.23.1655090500604; Sun, 12 Jun 2022 20:21:40 -0700 (PDT) Received: from localhost ([139.177.225.255]) by smtp.gmail.com with ESMTPSA id i3-20020a62c103000000b0051008603b66sm3967995pfg.219.2022.06.12.20.21.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Jun 2022 20:21:40 -0700 (PDT) Date: Mon, 13 Jun 2022 11:21:37 +0800 From: Muchun Song To: Daniel Vetter Cc: LKML , DRI Development , Daniel Vetter , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Vlastimil Babka , Roman Gushchin , linux-mm@kvack.org Subject: Re: [PATCH 2/3] mm/slab: delete cache_alloc_debugcheck_before() Message-ID: References: <20220605152539.3196045-1-daniel.vetter@ffwll.ch> <20220605152539.3196045-2-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220605152539.3196045-2-daniel.vetter@ffwll.ch> X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jun 05, 2022 at 05:25:38PM +0200, Daniel Vetter wrote: > It only does a might_sleep_if(GFP_RECLAIM) check, which is already > covered by the might_alloc() in slab_pre_alloc_hook(). And all callers > of cache_alloc_debugcheck_before() call that beforehand already. > > Signed-off-by: Daniel Vetter Nice cleanup. Reviewed-by: Muchun Song Thanks.