From patchwork Thu Jul 27 08:04:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13329507 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 9E304C04FDF for ; Thu, 27 Jul 2023 08:21:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234553AbjG0IVB (ORCPT ); Thu, 27 Jul 2023 04:21:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234283AbjG0ISz (ORCPT ); Thu, 27 Jul 2023 04:18:55 -0400 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BAF9271F for ; Thu, 27 Jul 2023 01:10:59 -0700 (PDT) Received: by mail-pf1-x435.google.com with SMTP id d2e1a72fcca58-686f74a8992so77877b3a.1 for ; Thu, 27 Jul 2023 01:10:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445429; x=1691050229; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=uDu/4z0sff3MNLq2Hem41DvJLtW9HR7Ht2OY0+o3IBw=; b=iVGfsyXkMcKNuSj4S4+ETT1e5FnNKRSLwcupS7aKQrOa2P/cg11EPb/fa7MepSVN0c souD70V3XZBCWCF1GY2G8kOBoazYK/GwCZP5iJVITEwRi2CFhPhtCnmN6NHRYDRfscjM ei11bn/3SqGlS2cI+uWxsIZ60GgV8/Th1+KRHAcGdOM/vcClXnAdg9IcKu5dXKtmCkaz 1Uv1368bMlurEfH1GvebpNgAfjlYTQWl+OVWRYv+SAitVhKYxMqk7I6vstlqXAV5ZTFg 13mCns35aGRuj+msRJnkqY3lYp1C9AqbhcZNDVttxslcFzKIxthPN+0g8mDIqHh31rTQ XhNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445429; x=1691050229; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=uDu/4z0sff3MNLq2Hem41DvJLtW9HR7Ht2OY0+o3IBw=; b=AliyOZnHS150zyds5+k66rsY775BkcSG3ttxgF1h+bGpRxTaXBApYUGtAYWMmTa3/y 6ucnt6jOaMjy8VLqRNhfysCv+gefuZYnJCQ7C8V1NY+31OkvJYKD0BSq1t2nkP43esCj Ey+/vHaPbeWqOIe8SIn5iy56p3gkjRDYlDWYe6sW/BuoH3GyhlaQMR0UYL+11dxbhhfx 2B79zpMWXEaXvwUFAzv2YPacrlpbOnptIA3SDylHoaEDQ3mqY0GCTJVB7oMNn45B1t3O WsBgTv3mSJCRbAe4s3wCIjUJcUSDxIEPenn/zG31fd814z20jo/rITEkBc0VYOiswwI/ pybQ== X-Gm-Message-State: ABy/qLaQuQFYs7LovsD0vaYPqD/n5W6EpAIhN+JzS0mZjsLOevQNME1s r2U2jLC+P5YXjMrAGtRtkQ69FA== X-Google-Smtp-Source: APBJJlHGswV8UzzwdSNooBFOlXCa2QxTNwcJjWEIeOA/B6KtVME+e61/tgitLanHgBraDSTbcyHPAw== X-Received: by 2002:a05:6a20:1595:b0:137:30db:bc1e with SMTP id h21-20020a056a20159500b0013730dbbc1emr5696433pzj.3.1690445429121; Thu, 27 Jul 2023 01:10:29 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id j8-20020aa78d08000000b006828e49c04csm885872pfe.75.2023.07.27.01.10.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 01:10:28 -0700 (PDT) From: Qi Zheng To: akpm@linux-foundation.org, david@fromorbit.com, tkhai@ya.ru, vbabka@suse.cz, roman.gushchin@linux.dev, djwong@kernel.org, brauner@kernel.org, paulmck@kernel.org, tytso@mit.edu, steven.price@arm.com, cel@kernel.org, senozhatsky@chromium.org, yujie.liu@intel.com, gregkh@linuxfoundation.org, muchun.song@linux.dev Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-nfs@vger.kernel.org, linux-mtd@lists.infradead.org, rcu@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, dm-devel@redhat.com, linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org, Qi Zheng Subject: [PATCH v3 23/49] mm: workingset: dynamically allocate the mm-shadow shrinker Date: Thu, 27 Jul 2023 16:04:36 +0800 Message-Id: <20230727080502.77895-24-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230727080502.77895-1-zhengqi.arch@bytedance.com> References: <20230727080502.77895-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Use new APIs to dynamically allocate the mm-shadow shrinker. Signed-off-by: Qi Zheng --- mm/workingset.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/mm/workingset.c b/mm/workingset.c index da58a26d0d4d..3c53138903a7 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -763,13 +763,6 @@ static unsigned long scan_shadow_nodes(struct shrinker *shrinker, NULL); } -static struct shrinker workingset_shadow_shrinker = { - .count_objects = count_shadow_nodes, - .scan_objects = scan_shadow_nodes, - .seeks = 0, /* ->count reports only fully expendable nodes */ - .flags = SHRINKER_NUMA_AWARE | SHRINKER_MEMCG_AWARE, -}; - /* * Our list_lru->lock is IRQ-safe as it nests inside the IRQ-safe * i_pages lock. @@ -778,9 +771,10 @@ static struct lock_class_key shadow_nodes_key; static int __init workingset_init(void) { + struct shrinker *workingset_shadow_shrinker; unsigned int timestamp_bits; unsigned int max_order; - int ret; + int ret = -ENOMEM; BUILD_BUG_ON(BITS_PER_LONG < EVICTION_SHIFT); /* @@ -797,17 +791,24 @@ static int __init workingset_init(void) pr_info("workingset: timestamp_bits=%d max_order=%d bucket_order=%u\n", timestamp_bits, max_order, bucket_order); - ret = prealloc_shrinker(&workingset_shadow_shrinker, "mm-shadow"); - if (ret) + workingset_shadow_shrinker = shrinker_alloc(SHRINKER_NUMA_AWARE | + SHRINKER_MEMCG_AWARE, + "mm-shadow"); + if (!workingset_shadow_shrinker) goto err; + ret = __list_lru_init(&shadow_nodes, true, &shadow_nodes_key, - &workingset_shadow_shrinker); + workingset_shadow_shrinker); if (ret) goto err_list_lru; - register_shrinker_prepared(&workingset_shadow_shrinker); + + workingset_shadow_shrinker->count_objects = count_shadow_nodes; + workingset_shadow_shrinker->scan_objects = scan_shadow_nodes; + + shrinker_register(workingset_shadow_shrinker); return 0; err_list_lru: - free_prealloced_shrinker(&workingset_shadow_shrinker); + shrinker_free(workingset_shadow_shrinker); err: return ret; }