From patchwork Mon Nov 5 21:31:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Ring X-Patchwork-Id: 10669215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6B22A13BF for ; Mon, 5 Nov 2018 21:32:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6590C29D7C for ; Mon, 5 Nov 2018 21:32:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 59A4F29D7E; Mon, 5 Nov 2018 21:32:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB8CB29D7C for ; Mon, 5 Nov 2018 21:32:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387580AbeKFGyX (ORCPT ); Tue, 6 Nov 2018 01:54:23 -0500 Received: from mail-wr1-f53.google.com ([209.85.221.53]:40909 "EHLO mail-wr1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387865AbeKFGyW (ORCPT ); Tue, 6 Nov 2018 01:54:22 -0500 Received: by mail-wr1-f53.google.com with SMTP id i17-v6so11164582wre.7 for ; Mon, 05 Nov 2018 13:32:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=n97TryyWB0QoJ95AwbZ3yMH5ymqjEv46h0phsz6/vCo=; b=qz1sWaGJN+iVq6zc8pKVI+nt+RcjCAPvpRPi0+wdxIzYBm5IkspFMQbjp5vu0a8ZJ5 09z1x3NXHkBVr0p/Ee21zaCVBUGCO+TkYUF6C5ioZNUOYGMLcWk81OWrF/7UBl8e/F7k Zf2wIizqYdi48F81qlmx0xf3FmNY86oO/AqZu7IDjGODJ+AWu3aAI7M8ndBHi/PP9JZG ZbgVwaIu5gYcqqpzprbCvtbz6ToCYOxyu4D37gL3wnvDHFoPYdqIANYIVZnIaapXpgJT fX526Co9Mm8eJfnLaY4NhjWcKeIzwsyf3BMPnfzQAh09eMAp5fxXGzfqiEsgLA4d7FbS /T9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=n97TryyWB0QoJ95AwbZ3yMH5ymqjEv46h0phsz6/vCo=; b=g5ouj5eAiNtL3VOpLS4VPZuTICANMoBb1/ZEETGjxfv2jeOfagZ5QK3aGZ/SI3iu7x DDiyIe9M2cSvpF7JhqYaa6RSU0RdJMILYoSIsbBHdjb1UugVrfTJ8c2+c+rpFLOShpF7 ej5rPPA6aJdvh/qnhA2VdpXgkqAfXm7ID3zK06NLeRFg2ap4wEGkyHXFf/LeGcKO3EAT cSe85zBXlXd9q6jxWS79hwDqWGC2jBsnGKtpYV9HWz67MvPKTo1IjME/neDuCIbvzm73 pibks/HewX03gV5PJRbBwD4ez96fQUjlZkZmTmQjxzhXiHgJdNVXnPC1NLeScMU8AJYG FV/A== X-Gm-Message-State: AGRZ1gLJ0vsZ/Sbij0bujtKmgb8fcCzR/0cAqZYs0HK5XqgMgVG+yYdP V77a0NwUoAOaLB4AbH3vTwaXzmBw X-Google-Smtp-Source: AJdET5cBD3tWDd9hiY5MXO5KGvZUPF3YM/apYsJT7p/5pxMbeh8pFt0XLYe6tqa2iKGxhneosQwOaA== X-Received: by 2002:a5d:434c:: with SMTP id u12-v6mr19885266wrr.306.1541453559799; Mon, 05 Nov 2018 13:32:39 -0800 (PST) Received: from dyn.cm.kabsi.at (h081217199198.dyn.cm.kabsi.at. [81.217.199.198]) by smtp.gmail.com with ESMTPSA id x18-v6sm38861711wrs.50.2018.11.05.13.32.38 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 05 Nov 2018 13:32:39 -0800 (PST) From: Stefan Ring To: linux-xfs@vger.kernel.org Subject: [PATCH 4/5] xfs_metadump: Zap unused space in inode btrees Date: Mon, 5 Nov 2018 22:31:44 +0100 Message-Id: <20181105213145.7560-5-stefanrin@gmail.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20181105213145.7560-1-stefanrin@gmail.com> References: <20181105213145.7560-1-stefanrin@gmail.com> Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Stefan Ring Reviewed-by: Darrick J. Wong --- db/metadump.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/db/metadump.c b/db/metadump.c index d4c751c0..59765263 100644 --- a/db/metadump.c +++ b/db/metadump.c @@ -2173,6 +2173,19 @@ process_btinode( } pp = XFS_BMDR_PTR_ADDR(dib, 1, maxrecs); + + if (zero_stale_data) { + char *top; + + /* Unused btree key space */ + top = (char*)XFS_BMDR_KEY_ADDR(dib, nrecs + 1); + memset(top, 0, (char*)pp - top); + + /* Unused btree ptr space */ + top = (char*)&pp[nrecs]; + memset(top, 0, (char*)dib + XFS_DFORK_SIZE(dip, mp, whichfork) - top); + } + for (i = 0; i < nrecs; i++) { xfs_agnumber_t ag; xfs_agblock_t bno;