From patchwork Mon Aug 7 11:09:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13343766 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 DA517C41513 for ; Mon, 7 Aug 2023 11:23:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232478AbjHGLX4 (ORCPT ); Mon, 7 Aug 2023 07:23:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232525AbjHGLWy (ORCPT ); Mon, 7 Aug 2023 07:22:54 -0400 Received: from mail-io1-f53.google.com (mail-io1-f53.google.com [209.85.166.53]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B648A26AC for ; Mon, 7 Aug 2023 04:20:08 -0700 (PDT) Received: by mail-io1-f53.google.com with SMTP id ca18e2360f4ac-790b6761117so45036439f.0 for ; Mon, 07 Aug 2023 04:20:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1691406804; x=1692011604; 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=4VJlLpDqVGiuvI83ez+3bl7yR5bVuWalBgtTU2vfBLE=; b=i2oZ2Se5RaRdFd0q9t3NqBTv/dUkxD/p2SyHpAjMjg/XHGqyx1ejwAfepurqt3olXd 4JrDoh1Y9dLDoFntnleeQjfq8XZjg4nTjOSD4Duga+gvfwhzkhg3QVfdrOJlicPQaYUD v5DwTanMH6RhkvK4rWOetuDFETnSCGxcV41PCfrrWGGU2b+vPg8IYLTIauqtUI6qQnyf JDKJFxqA5C/eh/Oo8gwkHqwPIIO1pJg4e68ItW2uJIdbbavFER6b/PwVILGTxzeWrF6b lEtQmpfrwSnO090W7cEUPihusqog8pTCjc32QMYuqZWzqkk8YiBOx308Pfsd+2Yt04OK T2NQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691406804; x=1692011604; 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=4VJlLpDqVGiuvI83ez+3bl7yR5bVuWalBgtTU2vfBLE=; b=QlTgaSky3SPOOrYQwHHE8+SZiRAp8CqAgVcAQafP2BZhKE8nxMyaDbC592IQcu8nje 2hp9mULKctRPbPpIhBp24Sjfisx04lXAb5BZ9mv13DtGGs+6hMEoZEF1yCYtpq8dI8SA GLHQq11uE+/cy2M0kZc5+UF1j4mvf95sUou0Tz1qa0bsAOiljfMOkNNBK7AqccufrlUZ hPR+o73fcoD/YKSlVpq2+ZJaQxHmVxpM/H1Uy2+dMr2WZtBssokxxB9spfh/MiYEp2UQ j9E+R3WaFoEl2375PGtZ4mFuwYn52xMkmw36IvQciIwe7mvraV1KU8b1jDvYcMYBz0fq OhXg== X-Gm-Message-State: ABy/qLamjfHS8IOCKXV1ppb5+wbvjUuNt9q51t3C5KaM7lFO6+l5r32J cLTWhVKBJgs9H1gJCz7JVKxk/Q== X-Google-Smtp-Source: APBJJlG6KxjpSP18cuDMGPLwCal+2Q6XOYkRmOlR+93TSEU+QOz0TNU1VRvfHZPrdEq648UTFq+gsw== X-Received: by 2002:a92:d944:0:b0:349:3c78:fd14 with SMTP id l4-20020a92d944000000b003493c78fd14mr13499018ilq.1.1691406803912; Mon, 07 Aug 2023 04:13:23 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id y13-20020a17090aca8d00b0025be7b69d73sm5861191pjt.12.2023.08.07.04.13.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 04:13:23 -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, simon.horman@corigine.com, dlemoal@kernel.org 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 , Muchun Song Subject: [PATCH v4 16/48] quota: dynamically allocate the dquota-cache shrinker Date: Mon, 7 Aug 2023 19:09:04 +0800 Message-Id: <20230807110936.21819-17-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230807110936.21819-1-zhengqi.arch@bytedance.com> References: <20230807110936.21819-1-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 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 9e72bfe8bbad..c303cffdf433 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. */ @@ -2956,6 +2950,7 @@ 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__); @@ -2990,8 +2985,15 @@ 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; }