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: 13329546 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A14D4C8F7 for ; Thu, 27 Jul 2023 08:19:45 +0000 (UTC) Received: from mail-oa1-x29.google.com (mail-oa1-x29.google.com [IPv6:2001:4860:4864:20::29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE5927281 for ; Thu, 27 Jul 2023 01:19:33 -0700 (PDT) Received: by mail-oa1-x29.google.com with SMTP id 586e51a60fabf-1bb6d6b09d6so180798fac.1 for ; Thu, 27 Jul 2023 01:19:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445973; x=1691050773; 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=GmUZDD+EgFdEgpQcYK1fOaKOP8W8TSl0tQPNcr8AA8RQQGOVTVyGsM7HFpU8SepyvA GXwZDa2Y1bXsQIYO0nzg31yGDJf95fG1816QERkq+G7/ZKqdXcbfJwsbag5n+BcpgUoE jPRAiCIOChyhubS2urA0u/n7qLSarlXLuK32rE34RrdoNl5KDnoMrbo30QpuypXafzqh Mmup8yTjFgYCHO+c9fWUpchfNVNQBFPk8//D3YUIi0ZzX3iGIM+C/82z+pk/mhHLIYXY K3Xr/HlPj1NY7v8K/XWHU7mmGl1dygFQoc2Y8Q6M0goU0BbAtQTv2jRf7SEqMNncmGNu s+/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445973; x=1691050773; 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=Lmj26g5s+5Yr2x7+rUI5qmV56qZfIi6lhZq8O1oQrWcj6DX9142N+DpazdRMOc4j29 p1Dkt9+iUFeRDLRm9u9Lx87KEgU2j+b8iPE3LiDlLrcwpfo3QJI6lAj8808x0XudSskL zXqPErMbdm1wYmcMmHxOxuhXkI93jMh3BVRUiC+zJwvJpqZR2yert84adAThNtphxLSY I7ty50U5eV3EKbGrkrmDj1N6iHdZ/6mBkfBSncgnYQ9weH7YgEF8ahrZwL7464XxA9pK aE38iG4LWMCMfdfhjIc87f0gVEzQN+hesbDfJ0JR7Eg2hiucb35oFG2IOdwR31z20Gcf W5Ww== X-Gm-Message-State: ABy/qLZxqdZ1mT+hnPx2Q6sjS/lFer3rsiqmE0oZ/hGPbyGMjyf3Z4WP yQC++7HvMXH2TktyR/NtFDS9KIzeP1mMmGNoo/8= 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> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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();