Message ID | 20230727080502.77895-18-zhengqi.arch@bytedance.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-fsdevel-owner@vger.kernel.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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 239D8C41513 for <linux-fsdevel@archiver.kernel.org>; Thu, 27 Jul 2023 08:20:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234100AbjG0IUp (ORCPT <rfc822;linux-fsdevel@archiver.kernel.org>); Thu, 27 Jul 2023 04:20:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230478AbjG0IRg (ORCPT <rfc822;linux-fsdevel@vger.kernel.org>); Thu, 27 Jul 2023 04:17:36 -0400 Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 755CA5FC3 for <linux-fsdevel@vger.kernel.org>; Thu, 27 Jul 2023 01:10:10 -0700 (PDT) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-682eef7d752so203902b3a.0 for <linux-fsdevel@vger.kernel.org>; Thu, 27 Jul 2023 01:10:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445357; x=1691050157; 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=1//FAyntSoVVhHGcFkYF5rOUv8OYZDaOr/FI52lXs1g=; b=WprFfHhwxvgCbIOGEhvz/77THpnE+uaWMbMuLLIIDpVeL3Jz2616v8wLFkzo7HZvSd TNFFTtJffBxh3fLTgZ0hA52iTzwFJ1lb7YC8GT96AcRGLEmRK6UnsPg5TF0WeT/gBbXI n3D8mngVfbe3MYXC32UZAJFJiGuaHBVIWM9CunOWIYu990kGDPAj43N4rpm3m8rpgsHd 02xW2JacWcelFq3TAnDCLUfDJo66VYYZvDcSFvyxJpg5YwEtAXcJf/FphGWJu7IrCr2v NhF0NyS2ftTWJJ0Gd6+a6tHW0SZpG4hIgkFC42XLIYM9ZEOFnWGm8ZzCwBndTMQ8KaY8 M1zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445357; x=1691050157; 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=1//FAyntSoVVhHGcFkYF5rOUv8OYZDaOr/FI52lXs1g=; b=k8kfvnIt032FnWqpx/jajcD44yf3upBy0oual51cpZquMqdJo9DBzzJKKcs/Es4dqy 8W25Lvbzqo8QdYEl10/965adxLPQNdWsE6FHMdgVMfy2MdXSN3xB20Aoc1vgZhk3Cx5B dCE2iMRZLNEoIX45Fp+cBYemRGzs8vV3qPcwamgAUn1KVYNXMvXF85TI+edYhiaAS+m9 NjxpAFwBpKnmb/aDtG/vS5Pqv+myOfnrvAt2P54enWTEkJMEoSpDfifteGehyuZMbVyV EX4thRtOdLHeUSj2tVTgK6LFlQkKv9gKIjvq7S/ClaqpZlGumqpAhdlrlx0mtFneBIXx rfLA== X-Gm-Message-State: ABy/qLb9sOM1M+vuYVLpvrWd32ux2JuFj9zlOhUvELNph33qpfqj/xi0 fCoSQfbI0E8SQ+dMxs2DGw163g== X-Google-Smtp-Source: APBJJlHvmYnqUEfQMupLlQUSLLnEPxVICkIYSDMBUwnFYoQAuRxCEO7ekKLA8kJr4NX0LnRrY6UJ3A== X-Received: by 2002:a05:6a00:13a3:b0:676:2a5c:7bc5 with SMTP id t35-20020a056a0013a300b006762a5c7bc5mr5229938pfg.1.1690445356761; Thu, 27 Jul 2023 01:09:16 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id j8-20020aa78d08000000b006828e49c04csm885872pfe.75.2023.07.27.01.09.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 01:09:16 -0700 (PDT) From: Qi Zheng <zhengqi.arch@bytedance.com> 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 <zhengqi.arch@bytedance.com>, Muchun Song <songmuchun@bytedance.com> Subject: [PATCH v3 17/49] quota: dynamically allocate the dquota-cache shrinker Date: Thu, 27 Jul 2023 16:04:30 +0800 Message-Id: <20230727080502.77895-18-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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: <linux-fsdevel.vger.kernel.org> X-Mailing-List: linux-fsdevel@vger.kernel.org |
Series |
use refcount+RCU method to implement lockless slab shrink
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expand
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diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index e8232242dd34..8883e6992f7c 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -791,12 +791,6 @@ dqcache_shrink_count(struct shrinker *shrink, struct shrink_control *sc) percpu_counter_read_positive(&dqstats.counter[DQST_FREE_DQUOTS])); } -static struct shrinker dqcache_shrinker = { - .count_objects = dqcache_shrink_count, - .scan_objects = dqcache_shrink_scan, - .seeks = DEFAULT_SEEKS, -}; - /* * Safely release dquot and put reference to dquot. */ @@ -2957,6 +2951,7 @@ static int __init dquot_init(void) { int i, ret; unsigned long nr_hash, order; + struct shrinker *dqcache_shrinker; printk(KERN_NOTICE "VFS: Disk quotas %s\n", __DQUOT_VERSION__); @@ -2991,8 +2986,15 @@ static int __init dquot_init(void) pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld," " %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); - if (register_shrinker(&dqcache_shrinker, "dquota-cache")) - panic("Cannot register dquot shrinker"); + dqcache_shrinker = shrinker_alloc(0, "dquota-cache"); + if (!dqcache_shrinker) + panic("Cannot allocate dquot shrinker"); + + dqcache_shrinker->count_objects = dqcache_shrink_count; + dqcache_shrinker->scan_objects = dqcache_shrink_scan; + dqcache_shrinker->seeks = DEFAULT_SEEKS; + + shrinker_register(dqcache_shrinker); return 0; }