From patchwork Mon Sep 11 09:44:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13379758 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 2D76ECA0EC7 for ; Mon, 11 Sep 2023 20:55:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239510AbjIKUzD (ORCPT ); Mon, 11 Sep 2023 16:55:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54346 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235918AbjIKJq3 (ORCPT ); Mon, 11 Sep 2023 05:46:29 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FD7B116 for ; Mon, 11 Sep 2023 02:46:03 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1bf1876ef69so11138105ad.1 for ; Mon, 11 Sep 2023 02:46:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1694425562; x=1695030362; darn=vger.kernel.org; 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=vEaLNFUhwmRxiNXJvWOPc9Z79QJgQluJlkgX3lFWQho=; b=gOxko638HsLgsWcQM8ZBxit1ohP69BYgLCBujdoJ2To0duqKxeriBW+3V5k4ouTNJV grBw30CtJ9hALTxxprwQrY38B4wX8PCdXfzSbZ3FaA0CNcLtPEkyuD0+NIPj2CPvTy6t wVKhCUe+JKt56Ec/dYr/S9HUE7FgxkFb3X7RAl73ba/3IRrKFCbwmg4mruCg+6Uh7OXY 6zX2nbgMNeJxzZe2ymp/I/UY0KLd7LHnAcNTpdaJ9Gw3R4Fo/EV1fTrNoAxC+3Yv9dwi 1GmXsW1HglVJyqSzmTaI/OuanvXaChxuUKZvzAhbDvn+8V3/uzCR7Rq76vmd6Xn6HVKK y7Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694425562; x=1695030362; 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=vEaLNFUhwmRxiNXJvWOPc9Z79QJgQluJlkgX3lFWQho=; b=MbCdA64tUxhRrz48u47T0RvHiomLBYoGBCAzMe2oprbJDnNXMzTrkSDvr9krALva16 0sBH8KHVgw7PDQE1EQ/VerzgYxbNKTO6QIBS83cHpmd8csWr+ak4Mx81l9m2Yld9yDr6 EczlACy8auQ7MhucPYsHu0dafVCfLU4qNfjcma99rjE5YgJ5knaU8CVKiPFOWtbopAoq CZwBMDLBJxpeW7VXb4eoBktWrl9Q+7NnTzvBxSQHYrFmMvfac/8j1OMG7SqMjMqxNzpi OIY1jT2KHzd445Hj9FtECiLyVV04RkEKnrRnbe2WMA+oxh79nqgwQn9ErmQm9yaT2Ogu crSg== X-Gm-Message-State: AOJu0YzsrKFN53V1OPO/9tK0YC7v6qQl22+EGkDqP6CFivKKtSOmle+t C0HgcwWDbfvKPA5p9CFcVQCUsg== X-Google-Smtp-Source: AGHT+IEEe7OKLpAjWZ6ZHMp4sopalHLkAI6pc9tZjZALl4cTsdDgpaoyKPO/MAR6mRgsc+S+sQMbZw== X-Received: by 2002:a17:903:3386:b0:1c3:8dbe:aecb with SMTP id kb6-20020a170903338600b001c38dbeaecbmr8865820plb.2.1694425562720; Mon, 11 Sep 2023 02:46:02 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id az7-20020a170902a58700b001bdc2fdcf7esm5988188plb.129.2023.09.11.02.45.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Sep 2023 02:46:02 -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, linux-fsdevel@vger.kernel.org, Qi Zheng , Muchun Song , Chao Yu , Gao Xiang , Yue Hu , Jeffle Xu , linux-erofs@lists.ozlabs.org Subject: [PATCH v6 06/45] erofs: dynamically allocate the erofs-shrinker Date: Mon, 11 Sep 2023 17:44:05 +0800 Message-Id: <20230911094444.68966-7-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230911094444.68966-1-zhengqi.arch@bytedance.com> References: <20230911094444.68966-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Use new APIs to dynamically allocate the erofs-shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song Reviewed-by: Chao Yu Reviewed-by: Gao Xiang CC: Yue Hu CC: Jeffle Xu CC: linux-erofs@lists.ozlabs.org --- fs/erofs/utils.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c index cc6fb9e98899..e9c25cd7b601 100644 --- a/fs/erofs/utils.c +++ b/fs/erofs/utils.c @@ -270,19 +270,24 @@ static unsigned long erofs_shrink_scan(struct shrinker *shrink, return freed; } -static struct shrinker erofs_shrinker_info = { - .scan_objects = erofs_shrink_scan, - .count_objects = erofs_shrink_count, - .seeks = DEFAULT_SEEKS, -}; +static struct shrinker *erofs_shrinker_info; int __init erofs_init_shrinker(void) { - return register_shrinker(&erofs_shrinker_info, "erofs-shrinker"); + erofs_shrinker_info = shrinker_alloc(0, "erofs-shrinker"); + if (!erofs_shrinker_info) + return -ENOMEM; + + erofs_shrinker_info->count_objects = erofs_shrink_count; + erofs_shrinker_info->scan_objects = erofs_shrink_scan; + + shrinker_register(erofs_shrinker_info); + + return 0; } void erofs_exit_shrinker(void) { - unregister_shrinker(&erofs_shrinker_info); + shrinker_free(erofs_shrinker_info); } #endif /* !CONFIG_EROFS_FS_ZIP */