From patchwork Mon Jul 24 09:43:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13323923 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 6D37AC001DF for ; Mon, 24 Jul 2023 09:52:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232604AbjGXJwv (ORCPT ); Mon, 24 Jul 2023 05:52:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52858 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232580AbjGXJwd (ORCPT ); Mon, 24 Jul 2023 05:52:33 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA01E4223 for ; Mon, 24 Jul 2023 02:48:50 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id d9443c01a7336-1bba9539a23so643225ad.1 for ; Mon, 24 Jul 2023 02:48:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690192098; x=1690796898; 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=av+QDe1dYuRDqLy0LPAsVex0suGCyDNqgU4hNImbDOo=; b=bDwQiK4fS0yTwWq4oVGVRKxPIDCclDxFD1XuAsmfHKruu98HTXXz11gYjdkSK/HgQ4 rQnPx3dscLMyKil4aICcT0ClG/ZXMBy6mCQ6rCkQE03v5xWhoTzeYQvpLwD9l9p7vXT0 v6DYimpLGMp1ValFsBMSR4AyqoftBHG/Cr11IkBPDpuRa7fi2izlKP1Mq3g/2PWtCUJ9 byo8ZZ2a8q2qzXYTrMXoHTjOf2N4B4XMSkAD5N1iIFEjrTIqUQlkmwpGlE+j3WXksgRd fNHXLvhFxXWRY9vsToZ4OCxL1qfGN5pYRyHLSBIlboKFdsL2/OFWebl/aiL58+zCQO6q AKNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690192098; x=1690796898; 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=av+QDe1dYuRDqLy0LPAsVex0suGCyDNqgU4hNImbDOo=; b=eoSwgOtAU8XXeWDxv79dT32GXq2Z0Briou+UJmhdAvJ6fQqLmyqByxmXWsiRxoX9YS Xjkhr2bEMI7PwRQKEtYecGqKTMbMiUXCflqD07sXoqL2l65bD0gKR1Kmf7GZltMOcT0N IzxhiKdJDOtW75t8mlQs6O+5ZMaDkiCOMOuv2ap9uTGqB/rEYoGGsFXXRAjjXjfQxEkJ bsenGqCmKJ23w2UliuUb1J0dtB2AoF+Oom97ol+M7GZyfQ46mBr2/3KXqRoJqeOAai1S TIp+cDup03uM96JQauNqKpPRWliY/OByZ1VFlVYcz8ENz5SbC7/OfBBr7qbz0ExzGp27 BNgg== X-Gm-Message-State: ABy/qLbFQFNJbqjuKmzLEg3WeyS+uCct5vwHc2PTWm9zrMOn1miCYkiC 7fDBtN9pxH87p/Xhw2ByWxsKEQ== X-Google-Smtp-Source: APBJJlGdal6NRof8mBJ7MOpqyhGdVFWorp9Fsw25TA7e6Zh0vfd9YbcVPo2ONhSqPJyVS7KwA30xww== X-Received: by 2002:a17:902:ea01:b0:1bb:83ec:832 with SMTP id s1-20020a170902ea0100b001bb83ec0832mr8333588plg.2.1690192098526; Mon, 24 Jul 2023 02:48:18 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id d5-20020a170902c18500b001bb20380bf2sm8467233pld.13.2023.07.24.02.48.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jul 2023 02:48:18 -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 16/47] ubifs: dynamically allocate the ubifs-slab shrinker Date: Mon, 24 Jul 2023 17:43:23 +0800 Message-Id: <20230724094354.90817-17-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 ubifs-slab shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song --- fs/ubifs/super.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 32cb14759796..f2a3a58f7860 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -54,11 +54,7 @@ module_param_cb(default_version, &ubifs_default_version_ops, &ubifs_default_vers static struct kmem_cache *ubifs_inode_slab; /* UBIFS TNC shrinker description */ -static struct shrinker ubifs_shrinker_info = { - .scan_objects = ubifs_shrink_scan, - .count_objects = ubifs_shrink_count, - .seeks = DEFAULT_SEEKS, -}; +static struct shrinker *ubifs_shrinker_info; /** * validate_inode - validate inode. @@ -2373,7 +2369,7 @@ static void inode_slab_ctor(void *obj) static int __init ubifs_init(void) { - int err; + int err = -ENOMEM; BUILD_BUG_ON(sizeof(struct ubifs_ch) != 24); @@ -2439,10 +2435,16 @@ static int __init ubifs_init(void) if (!ubifs_inode_slab) return -ENOMEM; - err = register_shrinker(&ubifs_shrinker_info, "ubifs-slab"); - if (err) + ubifs_shrinker_info = shrinker_alloc(0, "ubifs-slab"); + if (!ubifs_shrinker_info) goto out_slab; + ubifs_shrinker_info->count_objects = ubifs_shrink_count; + ubifs_shrinker_info->scan_objects = ubifs_shrink_scan; + ubifs_shrinker_info->seeks = DEFAULT_SEEKS; + + shrinker_register(ubifs_shrinker_info); + err = ubifs_compressors_init(); if (err) goto out_shrinker; @@ -2467,7 +2469,7 @@ static int __init ubifs_init(void) dbg_debugfs_exit(); ubifs_compressors_exit(); out_shrinker: - unregister_shrinker(&ubifs_shrinker_info); + shrinker_unregister(ubifs_shrinker_info); out_slab: kmem_cache_destroy(ubifs_inode_slab); return err; @@ -2483,7 +2485,7 @@ static void __exit ubifs_exit(void) dbg_debugfs_exit(); ubifs_sysfs_exit(); ubifs_compressors_exit(); - unregister_shrinker(&ubifs_shrinker_info); + shrinker_unregister(ubifs_shrinker_info); /* * Make sure all delayed rcu free inodes are flushed before we