From patchwork Thu Jul 27 08:04:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13329680 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 25AA8C04FE0 for ; Thu, 27 Jul 2023 08:30:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232381AbjG0Iae (ORCPT ); Thu, 27 Jul 2023 04:30:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234417AbjG0I2J (ORCPT ); Thu, 27 Jul 2023 04:28:09 -0400 Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2100283CB for ; Thu, 27 Jul 2023 01:14:38 -0700 (PDT) Received: by mail-pf1-f180.google.com with SMTP id d2e1a72fcca58-682eef7d752so203716b3a.0 for ; Thu, 27 Jul 2023 01:14:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445308; x=1691050108; 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=PjmSZHUI5/Kx8ZOfBbo02iydikdUH/y22dszJBbwnrc=; b=Xysv3RsPsBshttSMBUyUOf01pFj7ACJomxAeSKClYNtUM/IzDnc+1qcVpxKo3Yk7lI PMJO/0QAsBuNTHH31vZSyAI+mqZzOZhxUKyEZ0z882UMy5ds0dV7wjv4n79QhgQIluxL 7aiFKUJGI5uVRXEWRoqfDwEepuojrPx+nt9lSRf3+jabTyI60DcKdVq5RfgL5+gSsYt+ gIHfo7xL/z2KDHdpCbDlWUD9Wlzvl0HFxAouF/jEEZTs97EVMQFcZk2wLBhFoNV93wDr cOODQ3G+tMDc7b4BNamRJNYxJL3PiF9jIw3/5zQqa59OSVfyqIzXn4AyZmUz4TWVr103 SUHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445308; x=1691050108; 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=PjmSZHUI5/Kx8ZOfBbo02iydikdUH/y22dszJBbwnrc=; b=EOMZAIZR/8hcYRrXMWLQPNzmnSqadc6HW0wMwIVLiyqwSW8LWkGl66IsPrdImbuQu1 +SfpVTg/cG2w7O0pXtXvqcYjKN6v9oHW5BVV2qAT3DjUe8yS3aDjZQym0TsHOcNhXMdw 60H1v/VE+XxphwlFafqgCIN3O29+rR1ZKHPok9amT6nRpce6pABjGhJDU9iejst7zXgy MMSx2dYYsuOctB8BXfRM0K01VjFimaWVmG3HAWvzxoj0rBlI7D8j/AmNaYAW86f0tSla EhsBgSfhQ5TDmJNZ6Z2/5Nfe6viY3KAFwXjuwHXxRdnzXbRpycAR9QyKSmObrPvcNkeR q/hw== X-Gm-Message-State: ABy/qLbu+G6Cy7H36y+uLgwrPkr2NjqdLdPdqXitSA3qPA8Vo+zBXXy7 a3Um9IJJuc5u5H9SEUS31Bhffw== X-Google-Smtp-Source: APBJJlEap1sNysOWJSQnWaDnt336ll2X4eQUWxGjP7f0SXFaJg3Iw5H2LPNpa2qt6BR3D4CNzXfNwg== X-Received: by 2002:a05:6a00:4a0e:b0:677:3439:874a with SMTP id do14-20020a056a004a0e00b006773439874amr5196539pfb.3.1690445308627; Thu, 27 Jul 2023 01:08:28 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id j8-20020aa78d08000000b006828e49c04csm885872pfe.75.2023.07.27.01.08.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 01:08:28 -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 v3 13/49] gfs2: dynamically allocate the gfs2-qd shrinker Date: Thu, 27 Jul 2023 16:04:26 +0800 Message-Id: <20230727080502.77895-14-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: kvm@vger.kernel.org Use new APIs to dynamically allocate the gfs2-qd shrinker. Signed-off-by: Qi Zheng --- fs/gfs2/main.c | 6 +++--- fs/gfs2/quota.c | 26 ++++++++++++++++++++------ fs/gfs2/quota.h | 3 ++- 3 files changed, 25 insertions(+), 10 deletions(-) diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index afcb32854f14..e47b1cc79f59 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -147,7 +147,7 @@ static int __init init_gfs2_fs(void) if (!gfs2_trans_cachep) goto fail_cachep8; - error = register_shrinker(&gfs2_qd_shrinker, "gfs2-qd"); + error = gfs2_qd_shrinker_init(); if (error) goto fail_shrinker; @@ -196,7 +196,7 @@ static int __init init_gfs2_fs(void) fail_wq2: destroy_workqueue(gfs_recovery_wq); fail_wq1: - unregister_shrinker(&gfs2_qd_shrinker); + gfs2_qd_shrinker_exit(); fail_shrinker: kmem_cache_destroy(gfs2_trans_cachep); fail_cachep8: @@ -229,7 +229,7 @@ static int __init init_gfs2_fs(void) static void __exit exit_gfs2_fs(void) { - unregister_shrinker(&gfs2_qd_shrinker); + gfs2_qd_shrinker_exit(); gfs2_glock_exit(); gfs2_unregister_debugfs(); unregister_filesystem(&gfs2_fs_type); diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index aa5fd06d47bc..6cbf323bc4d0 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -186,13 +186,27 @@ static unsigned long gfs2_qd_shrink_count(struct shrinker *shrink, return vfs_pressure_ratio(list_lru_shrink_count(&gfs2_qd_lru, sc)); } -struct shrinker gfs2_qd_shrinker = { - .count_objects = gfs2_qd_shrink_count, - .scan_objects = gfs2_qd_shrink_scan, - .seeks = DEFAULT_SEEKS, - .flags = SHRINKER_NUMA_AWARE, -}; +static struct shrinker *gfs2_qd_shrinker; + +int __init gfs2_qd_shrinker_init(void) +{ + gfs2_qd_shrinker = shrinker_alloc(SHRINKER_NUMA_AWARE, "gfs2-qd"); + if (!gfs2_qd_shrinker) + return -ENOMEM; + + gfs2_qd_shrinker->count_objects = gfs2_qd_shrink_count; + gfs2_qd_shrinker->scan_objects = gfs2_qd_shrink_scan; + gfs2_qd_shrinker->seeks = DEFAULT_SEEKS; + + shrinker_register(gfs2_qd_shrinker); + return 0; +} + +void gfs2_qd_shrinker_exit(void) +{ + shrinker_free(gfs2_qd_shrinker); +} static u64 qd2index(struct gfs2_quota_data *qd) { diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h index 21ada332d555..f0d54dcbbc75 100644 --- a/fs/gfs2/quota.h +++ b/fs/gfs2/quota.h @@ -59,7 +59,8 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip, } extern const struct quotactl_ops gfs2_quotactl_ops; -extern struct shrinker gfs2_qd_shrinker; +int __init gfs2_qd_shrinker_init(void); +void gfs2_qd_shrinker_exit(void); extern struct list_lru gfs2_qd_lru; extern void __init gfs2_quota_hash_init(void);