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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 3AB7CC76186 for ; Wed, 24 Jul 2019 22:25:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EF44E21850 for ; Wed, 24 Jul 2019 22:25:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="H4jhYx8U" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728912AbfGXWZ1 (ORCPT ); Wed, 24 Jul 2019 18:25:27 -0400 Received: from mail-wr1-f44.google.com ([209.85.221.44]:43088 "EHLO mail-wr1-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726796AbfGXWZ0 (ORCPT ); Wed, 24 Jul 2019 18:25:26 -0400 Received: by mail-wr1-f44.google.com with SMTP id p13so48544731wru.10 for ; Wed, 24 Jul 2019 15:25:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=DPc2yEcgq/b9vFg2Z8md/oUGvl79yEGfi4JLqxoFpQc=; b=H4jhYx8UbehkrHcMRO6KDhXWx+B4y/2Uj02LZy5ZfkdGGCPSz/T+/Vcr0T9eg4ofQG OGFjus/zvSoc2QMeRUvNSsbx6nHyedhWhkdUyl+0YVbTOtYgm6PrSdi2I+uueWA4SGg9 jVrtXr7+iOj0SlqTlMkMgMroEzxzDtnG2TRNO+0kvPjIYi3G8M1MlNdnJkNu/zbpFsXX pCYvLLrH3PD/YAc2kkMgSaf6r9QSOHCOK5z6oHO2e2UdpUnH1zqXw82Eh5g9P8na6WjU dVeHb6Xe97ZlmXooApXPA02a5G6CHxIvkmN69vy1V2NYM7iN7a8fwIuhB0GzkAKda944 TTkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=DPc2yEcgq/b9vFg2Z8md/oUGvl79yEGfi4JLqxoFpQc=; b=G5AUt4haggqhzjm5nd/Nt8lbHMsTazoh94VomnONVubYYBBMlY2sOC2lcG20rouDOZ 2/LDzm+UszyTIqtEdQmEAv8yWl80elQy8kCP7U51G2bUBX58nWo60LUaJcsScYUcezEc hpIF5OCTndHtHDqVRUjkYz0S5FY66GRK0kKdx6dTsUw6Z8N5Qx6WcOmItpWzsAAh3QSB DrLFEdgTdNNHYDPKXKdnhI3EAlfIma92h336yI4YLEDqldKxM7bPpSyoLlc4C8ljfYDB 4ubb3l3Xn7hFnGQsaGiKQfzYUjbvP6Ov77krVqSjpADa8DmhYfsOQES1ZTbbPlk4miQn Z8rA== X-Gm-Message-State: APjAAAWH0PXs5xHTVDaGwHAASV6B8aK9SI1tzzbTR/WG2/cMuYfFBIbY vaSEwOo2FXfYs4sjQmRkEcp6+Y6b X-Google-Smtp-Source: APXvYqw64KakGaoiEBYe+78yu/LY+xlsdfPqP9raMSXbYPh522Gv7ZBNo2GxF/dIJS3+O1QBnMmxIw== X-Received: by 2002:adf:f601:: with SMTP id t1mr90210072wrp.337.1564007124605; Wed, 24 Jul 2019 15:25:24 -0700 (PDT) Received: from archlinux.localnet (65.red-83-34-150.dynamicip.rima-tde.net. [83.34.150.65]) by smtp.gmail.com with ESMTPSA id o6sm92167076wra.27.2019.07.24.15.25.22 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 24 Jul 2019 15:25:23 -0700 (PDT) From: Diego Calleja To: Qu Wenruo Cc: linux-btrfs@vger.kernel.org Subject: Re: [PATCH] btrfs: extent-tree: Add comment for walk_control to explain how btrfs drops a subvolume. Date: Thu, 25 Jul 2019 00:25:18 +0200 Message-ID: <3769531.JR3RUOJnLt@archlinux> In-Reply-To: <20190723075721.9383-1-wqu@suse.com> References: <20190723075721.9383-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org El martes, 23 de julio de 2019 9:57:21 (CEST) Qu Wenruo escribi=F3: > + * A <- tree root, level 2 > + * / \ > + * B C <- tree nodes, level 1 > + * / \ / \ > + * D E F G <- tree leaves, level 0 > + * > + * 1) Basic dropping. > + * All above tree blocks are owned exclusively. > + * Drop tree blocks using LRN iteration. > + * Tree drop sequence is: D E B F C G A. Excuse me if I am wrong, but there seems to be a small typo, shouldn't it be "F G C"?