From patchwork Mon Aug 7 11:08:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 711236 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 C5E05EB64DD for ; Mon, 7 Aug 2023 11:14:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231128AbjHGLOC (ORCPT ); Mon, 7 Aug 2023 07:14:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232064AbjHGLNc (ORCPT ); Mon, 7 Aug 2023 07:13:32 -0400 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 041322697 for ; Mon, 7 Aug 2023 04:12:46 -0700 (PDT) Received: by mail-pg1-x534.google.com with SMTP id 41be03b00d2f7-51f64817809so360181a12.1 for ; Mon, 07 Aug 2023 04:12:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1691406725; x=1692011525; 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=2qNGhCyBYRkIC+KqhUj1bienmPbnCoyI88yux10rL0c=; b=Xc/b9RVeZGabBZRzbFnLG60A3XcuysnQbX8QDB63xQh9Qsy33GgzK9r54ssZ8BRYsv Zo1icyrpegHwV8KMFlNuxd6Vv7rJh2g9STB5A/Cyu6q4WM+YLxsvvmbNVVdkSntCluNl It/PLVMY+sHjh9niVg4dAEeIOr6EcMWhtMnuFdCY7H6/MC8Iz/ZfTZnLr8OJnSIA36e9 mmNGX7xKmI8VWlsJYDncO9Zq/rF2h1OiOCACwI0xXgbsWIREHFfM5CkS8NCDLLHpFGlK JETB4OwnLh2lGmaSIFNM9gd2qMpLx0zP9hut1e08UtN8MQU5ZK62c3ni+xnuk2sIAfG7 kkXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691406725; x=1692011525; 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=2qNGhCyBYRkIC+KqhUj1bienmPbnCoyI88yux10rL0c=; b=TXqUPkTPvEIu1m4ckCVIY5u/6D6TjDEXGaDHIXbpbs3q4cqLne8Unh0ksymFv9XJri Lz128tJ5Bb1gyFakjEecSMkpwWrzVjAe5XW7VvI51L6r7bayf09bFhdKgwCLhimL8+H6 XGqmoJNm02Pi8VSyYZVOI6frNoQnOuzOWeHzdK+qg5EDkLRYop9ZAgUPKqg1RHu0ZfHk XnqwsxpHnjdjZy8ZCZZ9qDm/ZyxcV1US4xvuWW1rb9M/zwENHSIsLoxGUnZs+uAchNKK ItjOxGvgedWqZu2rW37LmdBJmM45CLb6+4g+5Ygoi+UEPiYQNlQpgpCxWhzhcAerfSge sU+A== X-Gm-Message-State: AOJu0Yx1ObPMS5Q+q9Km9Sw8Trq7jmcxBaaNz4IjjzVS9j1zGD0j3W3B hAs6hDhPRqO4TeeqN+VVzNqxJw== X-Google-Smtp-Source: AGHT+IH0i+Trkswf5ZN/Zo/hyk0nSAkeHBCb5cnTJePkF3I+vCqNyDS8fjeM0LPIBtSn2h3E1rmPDQ== X-Received: by 2002:a17:90a:2909:b0:269:5bf7:d79c with SMTP id g9-20020a17090a290900b002695bf7d79cmr2210453pjd.1.1691406724771; Mon, 07 Aug 2023 04:12:04 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id y13-20020a17090aca8d00b0025be7b69d73sm5861191pjt.12.2023.08.07.04.11.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 04:12:04 -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 10/48] f2fs: dynamically allocate the f2fs-shrinker Date: Mon, 7 Aug 2023 19:08:58 +0800 Message-Id: <20230807110936.21819-11-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: linux-arm-msm@vger.kernel.org Use new APIs to dynamically allocate the f2fs-shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song --- fs/f2fs/super.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index aa1f9a3a8037..9092310582aa 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -83,11 +83,27 @@ void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, #endif /* f2fs-wide shrinker description */ -static struct shrinker f2fs_shrinker_info = { - .scan_objects = f2fs_shrink_scan, - .count_objects = f2fs_shrink_count, - .seeks = DEFAULT_SEEKS, -}; +static struct shrinker *f2fs_shrinker_info; + +static int __init f2fs_init_shrinker(void) +{ + f2fs_shrinker_info = shrinker_alloc(0, "f2fs-shrinker"); + if (!f2fs_shrinker_info) + return -ENOMEM; + + f2fs_shrinker_info->count_objects = f2fs_shrink_count; + f2fs_shrinker_info->scan_objects = f2fs_shrink_scan; + f2fs_shrinker_info->seeks = DEFAULT_SEEKS; + + shrinker_register(f2fs_shrinker_info); + + return 0; +} + +static void f2fs_exit_shrinker(void) +{ + shrinker_free(f2fs_shrinker_info); +} enum { Opt_gc_background, @@ -4940,7 +4956,7 @@ static int __init init_f2fs_fs(void) err = f2fs_init_sysfs(); if (err) goto free_garbage_collection_cache; - err = register_shrinker(&f2fs_shrinker_info, "f2fs-shrinker"); + err = f2fs_init_shrinker(); if (err) goto free_sysfs; err = register_filesystem(&f2fs_fs_type); @@ -4985,7 +5001,7 @@ static int __init init_f2fs_fs(void) f2fs_destroy_root_stats(); unregister_filesystem(&f2fs_fs_type); free_shrinker: - unregister_shrinker(&f2fs_shrinker_info); + f2fs_exit_shrinker(); free_sysfs: f2fs_exit_sysfs(); free_garbage_collection_cache: @@ -5017,7 +5033,7 @@ static void __exit exit_f2fs_fs(void) f2fs_destroy_post_read_processing(); f2fs_destroy_root_stats(); unregister_filesystem(&f2fs_fs_type); - unregister_shrinker(&f2fs_shrinker_info); + f2fs_exit_shrinker(); f2fs_exit_sysfs(); f2fs_destroy_garbage_collection_cache(); f2fs_destroy_extent_cache();