From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 565FCC433B4 for ; Tue, 18 May 2021 13:54:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35F586135F for ; Tue, 18 May 2021 13:54:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242810AbhERNz1 (ORCPT ); Tue, 18 May 2021 09:55:27 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4735 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245342AbhERNzS (ORCPT ); Tue, 18 May 2021 09:55:18 -0400 Received: from dggems701-chm.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4Fky7V3b1kzqVCP; Tue, 18 May 2021 21:50:30 +0800 (CST) Received: from dggeme703-chm.china.huawei.com (10.1.199.99) by dggems701-chm.china.huawei.com (10.3.19.178) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2176.2; Tue, 18 May 2021 21:53:59 +0800 Received: from huawei.com (10.175.104.170) by dggeme703-chm.china.huawei.com (10.1.199.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 18 May 2021 21:53:58 +0800 From: Miaohe Lin To: CC: , , Subject: [PATCH 4/5] mm/swap: remove unused global variable nr_swapper_spaces Date: Tue, 18 May 2021 21:53:51 +0800 Message-ID: <20210518135352.3705306-5-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210518135352.3705306-1-linmiaohe@huawei.com> References: <20210518135352.3705306-1-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.104.170] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggeme703-chm.china.huawei.com (10.1.199.99) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since commit b6038942480e ("mm: memcg: add swapcache stat for memcg v2"), the last user of nr_swapper_spaces is gone. So we remove this unused one. Signed-off-by: Miaohe Lin --- mm/swap_state.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/mm/swap_state.c b/mm/swap_state.c index bab386c7b655..a55b7b74b0e6 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -37,7 +37,6 @@ static const struct address_space_operations swap_aops = { }; struct address_space *swapper_spaces[MAX_SWAPFILES] __read_mostly; -static unsigned int nr_swapper_spaces[MAX_SWAPFILES] __read_mostly; static bool enable_vma_readahead __read_mostly = true; #define SWAP_RA_WIN_SHIFT (PAGE_SHIFT / 2) @@ -686,7 +685,6 @@ int init_swap_address_space(unsigned int type, unsigned long nr_pages) /* swap cache doesn't use writeback related tags */ mapping_set_no_writeback_tags(space); } - nr_swapper_spaces[type] = nr; swapper_spaces[type] = spaces; return 0; @@ -695,7 +693,6 @@ int init_swap_address_space(unsigned int type, unsigned long nr_pages) void exit_swap_address_space(unsigned int type) { kvfree(swapper_spaces[type]); - nr_swapper_spaces[type] = 0; swapper_spaces[type] = NULL; } -- 2.23.0