From patchwork Thu Jul 27 08:04:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13330525 X-Patchwork-Delegate: snitzer@redhat.com 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 us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 69F87C07E8B for ; Thu, 27 Jul 2023 17:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690480532; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=ovY1jyYd+XTRbW4bMUpf91ntskr8zCiDVCIHi0QLAC0=; b=ROUZuVXObqFNvAnWZJ37xDHKq8WmyyY+vkFkBbpCWT3hvpiEF3ILx5XAd9Abwnsbp63LvZ GY3qlLLgQhHuxknFy8CgBAkYCyOVUU03kPctaxQgHCvyCxStBADTCeBfEB4kF5kYHFSe63 2n/TJwM/d+XUYc9yX1EbOB5SiK26O/Q= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-55-MLPtOTMGP0qltcDxDImXLA-1; Thu, 27 Jul 2023 13:55:27 -0400 X-MC-Unique: MLPtOTMGP0qltcDxDImXLA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id AA2031064B12; Thu, 27 Jul 2023 17:55:01 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (unknown [10.30.29.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id 956C2F782D; Thu, 27 Jul 2023 17:55:01 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (localhost [IPv6:::1]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 9212119376C6; Thu, 27 Jul 2023 17:54:57 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 4E2DA1946A6C for ; Thu, 27 Jul 2023 08:09:20 +0000 (UTC) Received: by smtp.corp.redhat.com (Postfix) id 3E0D6F77AD; Thu, 27 Jul 2023 08:09:20 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast03.extmail.prod.ext.rdu2.redhat.com [10.11.55.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3630DF6CD2 for ; Thu, 27 Jul 2023 08:09:20 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 17FAA89E740 for ; Thu, 27 Jul 2023 08:09:20 +0000 (UTC) Received: from mail-pf1-f181.google.com (mail-pf1-f181.google.com [209.85.210.181]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-67-dhi_4HlOO1GBs2geykDcOA-1; Thu, 27 Jul 2023 04:09:17 -0400 X-MC-Unique: dhi_4HlOO1GBs2geykDcOA-1 Received: by mail-pf1-f181.google.com with SMTP id d2e1a72fcca58-686f6231bdeso112898b3a.1 for ; Thu, 27 Jul 2023 01:09:17 -0700 (PDT) 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=bmihY0DYssbBbg8s3J4NuPcFxgAba4H6wirgmbooNSSr0/NtCsBCy2MO4JG5oMwFxx o9bjn9ByHF/vfIMjZcZUmgC/a/UXKlyn4brsZwUA+fpiO4AOwLoFWEVMXaUHczS1dRIu OT44WkhfRHVCLw7+rr7NPxjzlql/IeFqW/uIo1g31NNlBSMMAmkFDNIeJ7O2AvqEhnrs j60d54UYjtJmYLWVvl8JTyASB706lKDOWSnrncDj4i8Vdw8tZeya3BOi0Kfr5cmUe88n gTXleymuAYk6Vz2djyVczGq2QCmoNHbBXXik5A4LX9yP/ClUi3IJltv/TOeVN9Tkm1xt gnww== X-Gm-Message-State: ABy/qLY/1egEL9e4JO/VMOG3ozVMTjDUeoi4P0rpZ7Wkm+mIWItBQTto NmZGpGdUL4LOIDg79zdzGMR6hA== 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 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 Date: Thu, 27 Jul 2023 16:04:30 +0800 Message-Id: <20230727080502.77895-18-zhengqi.arch@bytedance.com> In-Reply-To: <20230727080502.77895-1-zhengqi.arch@bytedance.com> References: <20230727080502.77895-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mailman-Approved-At: Thu, 27 Jul 2023 17:54:53 +0000 Subject: [dm-devel] [PATCH v3 17/49] quota: dynamically allocate the dquota-cache shrinker X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, x86@kernel.org, cluster-devel@redhat.com, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, linux-arm-msm@vger.kernel.org, rcu@vger.kernel.org, linux-bcache@vger.kernel.org, Qi Zheng , Muchun Song , linux-raid@vger.kernel.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: bytedance.com Use new APIs to dynamically allocate the dquota-cache shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song --- fs/quota/dquot.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) 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; }