From patchwork Mon Jul 24 09:43:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13323917 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 D197FC001E0 for ; Mon, 24 Jul 2023 09:49:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232281AbjGXJtY (ORCPT ); Mon, 24 Jul 2023 05:49:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231688AbjGXJsj (ORCPT ); Mon, 24 Jul 2023 05:48:39 -0400 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82C11270A for ; Mon, 24 Jul 2023 02:47:11 -0700 (PDT) Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1b867f9198dso8895365ad.0 for ; Mon, 24 Jul 2023 02:47:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690192015; x=1690796815; 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=hKcV3vb4MClJJQ+mNTta07ndMYtKKP0SAkTwCVeOX0w=; b=a7lFhyKpvN91nijv1nVs3JeaaLMDFPSuaWY4NCEQD9DCJQdlhcmwFlvKgxp6H5QA07 3dkX4W4M1txISO3DSWoCDCRM1ysYCDf7oPJVOFGCIfe+DlrmZLhiur4I07AdWC0aW3Dw CVnibojO6zdjwPP037s+ZGzHTbYwQp1TRk5IbZ0gf2icMTq1nF1E5wJ/BtOX4xZvFUp0 NkBwNV73kgVtBd1NdtpFu3djSHL7HyBXhuBz5mRGNaBtssuegwQh/61PWGRXQCMhsibP +eC6XYGvARqk02NWbIzA2EZWiSinAW1FFs+vgwRWCCseEycqYRnDfiCLO/I65f90R1Q3 zmCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690192015; x=1690796815; 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=hKcV3vb4MClJJQ+mNTta07ndMYtKKP0SAkTwCVeOX0w=; b=Ny2ny08VUkhBSbBrvNg8HL/pcwnbQFVQmuDDo6RqGpqsQo0XPLGe0umq4M9v6Fi4/l gyIXs6jjPgtr8Cs96lb4YYHHfO4+fYai6GiBGeLjc5XRc6yi6K/YZK44yEmhozTPMDIg 2PYhA86A4YYWdz4N6XHZO14AdF30jUVAFG69rckJTXXeEzf/VGFOAaHaoLqoiPrCCKWh KNJQ864wR10KPFw6hYsdIoztoYSLdVe9ii5gLyfr2pnQ/mnHx8lGNVG4xCqae75x0TYx /U9pkAgnt9WDLtwth9b9A2LaJXxhRCgPwZ3U2V8qBvLJy7otPUr3emxDfnOT+hOyxMCW Gb+w== X-Gm-Message-State: ABy/qLb8t2LUVBp4aygT+rIjGDcjnY+IJZjltwzahOab2BekmNebze9t qPiiRkq02Y+vIXJ7fJs891q+yg== X-Google-Smtp-Source: APBJJlFJGAUudAfwbE4FzEeIId9jY33sdTrNWRyhFQwrzl0Tx9fNVh9CNxBzY73cH6rP3yfMJCnueA== X-Received: by 2002:a17:902:dace:b0:1b8:811:b079 with SMTP id q14-20020a170902dace00b001b80811b079mr12305026plx.0.1690192015077; Mon, 24 Jul 2023 02:46:55 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id d5-20020a170902c18500b001bb20380bf2sm8467233pld.13.2023.07.24.02.46.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jul 2023 02:46:54 -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 Subject: [PATCH v2 09/47] f2fs: dynamically allocate the f2fs-shrinker Date: Mon, 24 Jul 2023 17:43:16 +0800 Message-Id: <20230724094354.90817-10-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230724094354.90817-1-zhengqi.arch@bytedance.com> References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: rcu@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 ca31163da00a..8b08473db358 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 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_unregister(f2fs_shrinker_info); +} enum { Opt_gc_background, @@ -4941,7 +4957,7 @@ 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); @@ -4986,7 +5002,7 @@ 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: @@ -5018,7 +5034,7 @@ 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();