From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f53.google.com (mail-qv1-f53.google.com [209.85.219.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 35A9330DD35 for ; Mon, 15 Dec 2025 21:17:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765833482; cv=none; b=af6tu6p7ss1zk76sfT/SwHqvaJ9vvhyp5JY6VLVY89zpZOftyGGTaaJygTrfOL7DgX4W+ZKuKR6PBLc2BLHccHkZKRIjmEZvQXkpGwgRMYweU19pLuSMiZZNeH8M7hsB0rIpJdYNmgclJQGzlzFLpiRmlgPq/uS4hlkfhEYBISc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765833482; c=relaxed/simple; bh=CKH+FAAjzoon1OSofCyCce54ZroGwUuCKRL8FMDMFd8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZmG0elMyqQBhQsUa2QpDvUBuhbJMpxtBv7jo4QXDzD0mSiDHizbR0X5a5IWAUjbIPg8aXBqNcRE9M6axdWv8JILhvMmn9uhZGgygmAQJNsD8qoCTUiH6cipkkijywYEI9/X2tPW00Z0RCezU0MRhYv81gnn32wYZ+8vBQxqRYjE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=cmpxchg.org; spf=pass smtp.mailfrom=cmpxchg.org; dkim=pass (2048-bit key) header.d=cmpxchg.org header.i=@cmpxchg.org header.b=l25U/l6x; arc=none smtp.client-ip=209.85.219.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=cmpxchg.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cmpxchg.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cmpxchg.org header.i=@cmpxchg.org header.b="l25U/l6x" Received: by mail-qv1-f53.google.com with SMTP id 6a1803df08f44-88a367a1dbbso13878526d6.0 for ; Mon, 15 Dec 2025 13:17:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg.org; s=google; t=1765833477; x=1766438277; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=rQYOTwdjJwYgvuX1nPstCicu4NCv26qFYc5XYhTLu6s=; b=l25U/l6xkMdk4avz9x8Qm1HZan+6tmYV9fzTGwToDT7VvTcukRzfL3RR3T3ugQxaWN UqBDHXZJpUetn5jyw7oVH1PA5z5xQILInTO6UTFpjXkbUecCC0IJNYM1tzrVXYmQZkMT UWsPoHaizF3jjNtYR8yQ8N/ktY7TYQI7VuJEnd8do1jutD6/dvB0xFPLAdukgfSAxwlu kF5uY/feeddLCy0nSniBEn2szppCC0+9/qde7ugCzERFX9AtJEEaI6C8s2lVPj1aAEK4 /htm1tx4FT9aNhby7COhA0DZLz/tFTcMv/j0XjBcTvuJu9O95sBHAEMBWVwlbJ6E8IlF G4Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765833477; x=1766438277; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=rQYOTwdjJwYgvuX1nPstCicu4NCv26qFYc5XYhTLu6s=; b=WO5yPW2Lhm40pdwl0z5nekiH9VoXs+ANc3sz+CqS8UbnZkee+CsyvgjEYVAG8tdmqE 8jSDHP140c/mpAdn+9NqAJ7EEd8F46TGzEpwNUuB+9S8Yg10N8ynZkTF39FKOhPiypWt W563o4m7t7j1taNk3uGwgAIZ52WEcqhKF968kAaALV3LcGkNtjmZXwTFGZl6fyV2pvCo 5wmZpXKvGYgJj2LG6/+nU8FxqK8G5XC1G74IADTfAo47BxN0MCCVqQWsruvUTiUrWHmE OqLspDa5Xjb0XQON1M5CrBTIDFY49IAhZwSva11KtOLdjD+RVcHNTmlCkLlnxOieIJLi 7KMA== X-Forwarded-Encrypted: i=1; AJvYcCVJBWKgBiizVJgqDPGu5C9X4sai70P1hUFVx5ko56SzKsNthrAUPPmes1Ypx3WnlITXhcxFfN/GProEnoM=@vger.kernel.org X-Gm-Message-State: AOJu0YzRp6EXhyynucFd2otkGMZgUehO5NAOZ4p7LHuGa2sKqtwBJ1HG 1aCGr+DD+iaHsRAhQAZI/rp/uXIPOG0wKGnMoAa/mW3rEsg2utxxWClU+ttDub7BAEA= X-Gm-Gg: AY/fxX51OziXwgo32joySbOu/JZuscPjWjx7CJU/zqQpSg0DL30JubnVMuDWbSZ/Gvi 1ePphF7fQmrXfGqKgDYiQ9buZWZmzXo/5ncRCvLEzIZVJ4OxsY90vLNI/wDUhGxvkIy5tQm2CsQ beLPXr4hpa0yrsBdw5Hxdc3sfO1sgJRCq7o6TcLYVpifyw/U2VI6J/MERLZEo4xZ5ojuDg86/uC Vy7Phtzea51WeNFCCmhlgb+EVDDH0fP/WjPMiP5KtTQYUrCVi+MpI7A9TwX4nXhASw5zuWb9Rit br+j5BtsJRrOE5+4wF8p6Iq8fJo9evGwkXbGyy92bd+OWp2Gl7aQM7GV1XwlnmSTa1LGlpvs4AG aDMRh5CGJ3tKSgsuf4/pRtThP/Vyx9p7hnaz+W4sNGiVAOj5Mw2Hf+kI+3VFkUoBrHZeyM4Siye I1Xoq83I31jg== X-Google-Smtp-Source: AGHT+IExtT3C2ce1bnbMtFFEc4vbTu4xnrtsiKWUFgckjaMMD6DyYbjwCUrjL+1tWyqf3FThMCPBWg== X-Received: by 2002:a05:622a:4109:b0:4ee:2420:4f7a with SMTP id d75a77b69052e-4f1d047a1aamr167228381cf.2.1765833477067; Mon, 15 Dec 2025 13:17:57 -0800 (PST) Received: from localhost ([2603:7000:c01:2716:929a:4aff:fe16:c778]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4f345c2e0ecsm2877711cf.19.2025.12.15.13.17.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Dec 2025 13:17:55 -0800 (PST) Date: Mon, 15 Dec 2025 16:17:54 -0500 From: Johannes Weiner To: Chen Ridong Cc: akpm@linux-foundation.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, david@kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, corbet@lwn.net, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, zhengqi.arch@bytedance.com, linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, lujialin4@huawei.com, zhongjinji@honor.com Subject: Re: [PATCH -next 4/5] mm/mglru: combine shrink_many into shrink_node_memcgs Message-ID: <20251215211754.GG905277@cmpxchg.org> References: <20251209012557.1949239-1-chenridong@huaweicloud.com> <20251209012557.1949239-5-chenridong@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251209012557.1949239-5-chenridong@huaweicloud.com> On Tue, Dec 09, 2025 at 01:25:56AM +0000, Chen Ridong wrote: > @@ -5822,6 +5779,12 @@ static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc) > > shrink_one(lruvec, sc); > > + if (should_abort_scan(lruvec, sc)) { Can you please rename this and add the jump label check? if (lru_gen_enabled() && lru_gen_should_abort_scan()) The majority of the checks in there already happen inside shrink_node_memcgs() itself. Factoring those out is probably better in another patch, but no need to burden classic LRU in the meantime.