From patchwork Thu Jul 27 08:04:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13329453 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 B90D0C0015E for ; Thu, 27 Jul 2023 08:15:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233567AbjG0IPL (ORCPT ); Thu, 27 Jul 2023 04:15:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233206AbjG0ION (ORCPT ); Thu, 27 Jul 2023 04:14:13 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68B1B46B3 for ; Thu, 27 Jul 2023 01:09:39 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id d2e1a72fcca58-682eef7d752so203655b3a.0 for ; Thu, 27 Jul 2023 01:09:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690445296; x=1691050096; 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=XAY9+N2BbVQBjCT3MmFWkPxUR/2vf6o4m+CtMBoAzag=; b=LFYvlia4velFDizk2hHXlBW7f/l7rbfbGMuqLFZUpWLlBrVWlN4fEmfbvc4omxzXDA GS62NEHVqB0PFgv0flEq3EjMDASyoMQLwnHtJ15RD867cmoYFSzpLBJze2MH0FTuVYWD NsiHc1gWK/drytRuk+pd4JkJ3rj2hRu9B8SocS/OtbfY5xFfSOGukZMVRW73BQpYmdrG /5Ymr320vt1GGeIXCFFSw58+k2f5zcvch0LSG0bHy5CbC3AFLqLQjQMF/E7WQcKZk1m8 rvHs1btuYuzdVvuVmWOj+XioQ9BrFWnwjxo07/zHn9Dajw02v1LQ6Dr1U7VOL/6BCiXk S4AA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690445296; x=1691050096; 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=XAY9+N2BbVQBjCT3MmFWkPxUR/2vf6o4m+CtMBoAzag=; b=RSBF0bMhneeDV4hygItO+4+st8aantYqhwhEMaK2q8JVkJeMxZIwFFDxQagxzLVuLl aNeLZpLSKfIh0Pa3dzHIra83nVbNtgIcCheEbzevjIVMHnsRzhD8b6uvNXZCNwlJmiw/ 0vKODp1ixxeWtzB2qvXQXGNVAocVCS7hqa+fkakD/2U5en4IlxKlM/3IilnTr8eqSj7k g3pDsuzCBj43shxgR0KE2TQ/dv8HqEz7YGBkwP59qwz4K5kRzzElqrPz+XA6i+tbHaAY kjsXqRzjIQ7baYliXEIEdYsKbKwNfvulGevcChtjvPg2iZaMsdxrGElmO02JOK7nLNyX YUVQ== X-Gm-Message-State: ABy/qLYKaBrBnl0MZ96zYrW07UcEKrIsqajgQ2M4p0JT0GH/xtPGrjp1 NRNq/6ejWjcecKJXnzOX+pp3pA== X-Google-Smtp-Source: APBJJlFXIDspBDKYt+edW+ekZSGIMkDEJizocNVTOvlzV7xMQBKW4TeDX8VYOaL7MgnXn0ggLAa8Tw== X-Received: by 2002:a05:6a00:1586:b0:67f:8ef5:2643 with SMTP id u6-20020a056a00158600b0067f8ef52643mr5200829pfk.2.1690445296182; Thu, 27 Jul 2023 01:08:16 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id j8-20020aa78d08000000b006828e49c04csm885872pfe.75.2023.07.27.01.08.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jul 2023 01:08:15 -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 12/49] gfs2: dynamically allocate the gfs2-glock shrinker Date: Thu, 27 Jul 2023 16:04:25 +0800 Message-Id: <20230727080502.77895-13-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: rcu@vger.kernel.org Use new APIs to dynamically allocate the gfs2-glock shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song --- fs/gfs2/glock.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 1438e7465e30..8d582ba7514f 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -2046,11 +2046,7 @@ static unsigned long gfs2_glock_shrink_count(struct shrinker *shrink, return vfs_pressure_ratio(atomic_read(&lru_count)); } -static struct shrinker glock_shrinker = { - .seeks = DEFAULT_SEEKS, - .count_objects = gfs2_glock_shrink_count, - .scan_objects = gfs2_glock_shrink_scan, -}; +static struct shrinker *glock_shrinker; /** * glock_hash_walk - Call a function for glock in a hash bucket @@ -2472,13 +2468,19 @@ int __init gfs2_glock_init(void) return -ENOMEM; } - ret = register_shrinker(&glock_shrinker, "gfs2-glock"); - if (ret) { + glock_shrinker = shrinker_alloc(0, "gfs2-glock"); + if (!glock_shrinker) { destroy_workqueue(glock_workqueue); rhashtable_destroy(&gl_hash_table); - return ret; + return -ENOMEM; } + glock_shrinker->count_objects = gfs2_glock_shrink_count; + glock_shrinker->scan_objects = gfs2_glock_shrink_scan; + glock_shrinker->seeks = DEFAULT_SEEKS; + + shrinker_register(glock_shrinker); + for (i = 0; i < GLOCK_WAIT_TABLE_SIZE; i++) init_waitqueue_head(glock_wait_table + i); @@ -2487,7 +2489,7 @@ int __init gfs2_glock_init(void) void gfs2_glock_exit(void) { - unregister_shrinker(&glock_shrinker); + shrinker_free(glock_shrinker); rhashtable_destroy(&gl_hash_table); destroy_workqueue(glock_workqueue); }