From patchwork Mon Aug 7 11:09:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13343546 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 3C6CFC41513 for ; Mon, 7 Aug 2023 11:15:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232145AbjHGLPF (ORCPT ); Mon, 7 Aug 2023 07:15:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232091AbjHGLOe (ORCPT ); Mon, 7 Aug 2023 07:14:34 -0400 Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C721173E for ; Mon, 7 Aug 2023 04:13:17 -0700 (PDT) Received: by mail-pj1-x102e.google.com with SMTP id 98e67ed59e1d1-268663fb09cso630939a91.0 for ; Mon, 07 Aug 2023 04:13:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1691406751; x=1692011551; 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=y2Zq84YPu5W9umXtWflPPzaPyFOqe/t1tbhlrQuOI+E=; b=Y3Gw/8I9wjDIixxDLIQ9R5eAEihH4V5EOGMa/tEQP2UVJcVR6XKMsoq0kNQA9Anemf f07XdP3K3VTdRiql0M+klRK3bCLbXjjp+xplnI9SAQQIK1LQ+ZTQ4iN7KAzzTyuvBW+2 22vOneIjM2lcCre/t1Mc8DL07qt3h0LYO3V6dBXrNJ+ZsacS8/3b5gEWrOt6ylq3sp75 +tN/NsYby1EhnscHKGVaTQLZ5Bd9+GL+XZMM1MIKbWLpVeAc6COrlmvCwmGvjTVu68WR OgVgTRpqhZcRZgjQYAuUYTgXANtTE72/EYkbNkp+iXkkiBUoh7hJkggb0sVF4vx/kVZQ USbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691406751; x=1692011551; 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=y2Zq84YPu5W9umXtWflPPzaPyFOqe/t1tbhlrQuOI+E=; b=CpmakjacfTG64+V3LjdmmPeGc394LzLXdCzPAMboA1/55X51pGAVkHBXhSe8Mcvj/O DP9UCEzXVp85cGDHVxdBtnIxtEnjzi++WYqQFTzQRwn+p5hP7kzJAJ2zUBkT2IxrsEs7 PRj8nHLeNR0Kbgfcd5JhJP6M9j8YImewJq9rPM8qGbqleB5oQ7A/gn7zUzfjPLEFim69 D6iTF4E6lBcECmumMa14fFJy8DMpWrQgblJff0QaDBm6aPSc/E8Wdhaf9yvX3iNV0YVf FprOVd56Gb9GFLBwjC77szW6P1vCv8YELzhCOG572fL3rYe90yLz1udTEY+s8cJ4AqhV z89w== X-Gm-Message-State: ABy/qLZILPuRI44K8E8DtBae7X0dQr2CpLfjAN71uv0/DRBaAIA8bSUY 0+BH87NPcS4So5P0JvJ3yp35bQ== X-Google-Smtp-Source: APBJJlFA47zqmiKwpfw7q81pKFEqmAkA29wiqRNlMoLoIZqzioc4qMsA62pUfPaD7HBA/F0aUxQzvA== X-Received: by 2002:a17:90a:6c97:b0:263:730b:f568 with SMTP id y23-20020a17090a6c9700b00263730bf568mr23062652pjj.3.1691406750926; Mon, 07 Aug 2023 04:12:30 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id y13-20020a17090aca8d00b0025be7b69d73sm5861191pjt.12.2023.08.07.04.12.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 04:12:30 -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, simon.horman@corigine.com, dlemoal@kernel.org 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 v4 12/48] gfs2: dynamically allocate the gfs2-qd shrinker Date: Mon, 7 Aug 2023 19:09:00 +0800 Message-Id: <20230807110936.21819-13-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230807110936.21819-1-zhengqi.arch@bytedance.com> References: <20230807110936.21819-1-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 Reviewed-by: Muchun Song --- 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 632806c5ed67..d1e4d8ab8fa1 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);