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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09C74C43334 for ; Tue, 7 Jun 2022 19:33:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355698AbiFGTdk (ORCPT ); Tue, 7 Jun 2022 15:33:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346131AbiFGSlg (ORCPT ); Tue, 7 Jun 2022 14:41:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25503186BB4; Tue, 7 Jun 2022 10:58:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 364CA61883; Tue, 7 Jun 2022 17:58:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46116C385A5; Tue, 7 Jun 2022 17:58:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654624733; bh=zAI4Ecr07YE0jxsrG6iNMiep9L8whui7+AfVab8/K6U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D8PZVRQqt3WYJBlNDsKCDYul7RlCrVfYqD+Aa/XvNYqx5wvPG6ub5Lad0BeBhG+Fw 9o4bkVAYd4CezHMdKsDrLK4Ysocadp78/NWzpTuNevwRW2Qdar4l68IlWmpJXKOtXL Q0ksq/eg3woXq1GCTg/b4NT1dZ4OVvaLAsHFCaGs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Miaohe Lin , "Rafael J. Wysocki" , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , KOSAKI Motohiro , Andrew Morton , Sasha Levin Subject: [PATCH 5.15 432/667] drivers/base/node.c: fix compaction sysfs file leak Date: Tue, 7 Jun 2022 19:01:37 +0200 Message-Id: <20220607164947.682182691@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607164934.766888869@linuxfoundation.org> References: <20220607164934.766888869@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Miaohe Lin [ Upstream commit da63dc84befaa9e6079a0bc363ff0eaa975f9073 ] Compaction sysfs file is created via compaction_register_node in register_node. But we forgot to remove it in unregister_node. Thus compaction sysfs file is leaked. Using compaction_unregister_node to fix this issue. Link: https://lkml.kernel.org/r/20220401070905.43679-1-linmiaohe@huawei.com Fixes: ed4a6d7f0676 ("mm: compaction: add /sys trigger for per-node memory compaction") Signed-off-by: Miaohe Lin Cc: Greg Kroah-Hartman Cc: Rafael J. Wysocki Cc: Mel Gorman Cc: Minchan Kim Cc: KAMEZAWA Hiroyuki Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin --- drivers/base/node.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/base/node.c b/drivers/base/node.c index c56d34f8158f..0f5319b79fad 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -679,6 +679,7 @@ static int register_node(struct node *node, int num) */ void unregister_node(struct node *node) { + compaction_unregister_node(node); hugetlb_unregister_node(node); /* no-op, if memoryless node */ node_remove_accesses(node); node_remove_caches(node); -- 2.35.1