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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 E782FC43381 for ; Mon, 1 Apr 2019 17:32:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B598F2171F for ; Mon, 1 Apr 2019 17:32:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554139922; bh=EoGaq4gB+bVANjMzdq90a2/yA4nHMPbWAVcQNw8gXPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=s0/630vQYQq9c7HN69LCG0uqu+11LPzsmxIgVmY5wL8AlfalaXJ9LD9UOUYHfJipn rbUOXQne3GtgZLA6KOtsssfaUaISy3kzzvwaf68Zn/OYkKGLXGnhQLFbwk1W00moVt xN6vn0lmoLDN5+lLxh9X+WDJcOG22PYYGR2A3bxw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733149AbfDARcB (ORCPT ); Mon, 1 Apr 2019 13:32:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:39774 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733060AbfDARb6 (ORCPT ); Mon, 1 Apr 2019 13:31:58 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9184620856; Mon, 1 Apr 2019 17:31:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554139918; bh=EoGaq4gB+bVANjMzdq90a2/yA4nHMPbWAVcQNw8gXPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Dvs/c0WGFwNjB6POxUmLwl48Gg1fsClRzhAH5XZlglKzsuYWHLnlwKJoWop5FplaY ScL8gHdLf3GkdvrGrWXwD5I8i4wBlFMIcmT1+RSYnA9EUJV80Z+M5g64b+4BKyt+tr /bHbBHndAqJb2ofIrRZGgCxYM++L9EoAYLRrLP8M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tahsin Erdogan , Tejun Heo , Jens Axboe , Sasha Levin Subject: [PATCH 4.4 053/131] writeback: initialize inode members that track writeback history Date: Mon, 1 Apr 2019 19:02:03 +0200 Message-Id: <20190401170056.764925105@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190401170051.645954551@linuxfoundation.org> References: <20190401170051.645954551@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 3d65ae4634ed8350aee98a4e6f4e41fe40c7d282 ] inode struct members that track cgroup writeback information should be reinitialized when inode gets allocated from kmem_cache. Otherwise, their values remain and get used by the new inode. Signed-off-by: Tahsin Erdogan Acked-by: Tejun Heo Fixes: d10c80955265 ("writeback: implement foreign cgroup inode bdi_writeback switching") Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin --- fs/inode.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/inode.c b/fs/inode.c index a39c2724d8a0..b5c3a6473aaa 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -154,6 +154,12 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_rdev = 0; inode->dirtied_when = 0; +#ifdef CONFIG_CGROUP_WRITEBACK + inode->i_wb_frn_winner = 0; + inode->i_wb_frn_avg_time = 0; + inode->i_wb_frn_history = 0; +#endif + if (security_inode_alloc(inode)) goto out; spin_lock_init(&inode->i_lock); -- 2.19.1