From patchwork Thu Jul 27 08:04:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 707106 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 EE314C00528 for ; Thu, 27 Jul 2023 08:26:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232952AbjG0I0l (ORCPT ); Thu, 27 Jul 2023 04:26:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233706AbjG0IZp (ORCPT ); Thu, 27 Jul 2023 04:25:45 -0400 Received: from mail-pf1-f172.google.com (mail-pf1-f172.google.com [209.85.210.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 294B44ED4 for ; Thu, 27 Jul 2023 01:13:57 -0700 (PDT) Received: by mail-pf1-f172.google.com with SMTP id d2e1a72fcca58-682eef7d752so203595b3a.0 for ; Thu, 27 Jul 2023 01:13:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445284; x=1691050084; 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=f+zNYaRC7WOrXvS9MeEiQUBTAQfjLjc/pgN/esuhj34=; b=abLX7f3+1Jx7z4l7fMDPHLPoRZGZ9R0nM8ns3oWVX7aiHujgqPmDptRXrf7K4N1NV7 iafFd1vKgmMytglgpeByIm2etm8PBx6nYdrahZ4g0/dxHWR3bRoC5c0K2oAToNHdR0rs G85XXQ+OMNSfgkQPICGhKu4AFUznJk92yyLKwDX6t68bXy1Y1afxgcqF2Hrs2hRsS8Pi 1cVGQ/135Rq8DHs2i32YJ/uaSpZLHmMFkQEdBwI9bGEy1fU1/6Py8qR+g4Mw2XtURfuH rP2vSQAfzwsm7AmoQxkWOyj1kIWSKeW+aRYJEV/VwcFYAz1pgMCM8AVBtPjE13HITA/4 GS9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445284; x=1691050084; 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=f+zNYaRC7WOrXvS9MeEiQUBTAQfjLjc/pgN/esuhj34=; b=B9J8qX7e2fUdamBQbP2jWYcSZ+jngCUYmIWuPhWznEWOmdQdmctVcJTcq48h2RT/xW z6WKFKwIUgM4kyPu9D0gsAnjNdK4580QAeqPy24Eg3eGg4klmvUUegKB9ktAZrL91Zj2 tD+oCoKkTpiLjYjoO4p5RJYz7zl2Xr9QZckJ+XEfDTpHZwMAGjzi9TFssJNt5fFdTMII DlOlVscNw+h5Bnm2g/H+iXEnAhZSjqra/d/pzQJJWmqixuySpqODRqFpyCkhpZSPQ1Ue P/wZmwyxRkzO3UaIMbaSg8bhwXVwxDk/ZIDE5QFqCqj86g16Rwt/vqusTX8K2zoD+gL8 XqJQ== X-Gm-Message-State: ABy/qLYhQS/0Vbj1HpA7qOEEgOQz+8qGIE4xU/+YAlCCNurT1b+uxUbw XXptQTLktV/X6X3f46pz4mSNQA== X-Google-Smtp-Source: APBJJlHpYZMPheHhGtAzh7w//Dgf2VgsvvziRNiT4CodVVfE3Y9RoyQKb/hEjPAgUidNi6thlhXB+g== X-Received: by 2002:a05:6a20:4286:b0:12d:77e:ba3 with SMTP id o6-20020a056a20428600b0012d077e0ba3mr6418674pzj.0.1690445284151; Thu, 27 Jul 2023 01:08:04 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id j8-20020aa78d08000000b006828e49c04csm885872pfe.75.2023.07.27.01.07.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 01:08:03 -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 , Muchun Song Subject: [PATCH v3 11/49] f2fs: dynamically allocate the f2fs-shrinker Date: Thu, 27 Jul 2023 16:04:24 +0800 Message-Id: <20230727080502.77895-12-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: 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 a123f1378d57..9200b67aa745 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, @@ -4937,7 +4953,7 @@ 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); @@ -4982,7 +4998,7 @@ 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: @@ -5014,7 +5030,7 @@ 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();