From patchwork Sun Aug 22 15:01:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sidong Yang X-Patchwork-Id: 12451565 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 3B2C7C4338F for ; Sun, 22 Aug 2021 15:02:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05BF1611CB for ; Sun, 22 Aug 2021 15:02:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233778AbhHVPCj (ORCPT ); Sun, 22 Aug 2021 11:02:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233549AbhHVPCj (ORCPT ); Sun, 22 Aug 2021 11:02:39 -0400 Received: from mail-pg1-x531.google.com (mail-pg1-x531.google.com [IPv6:2607:f8b0:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2271FC061575 for ; Sun, 22 Aug 2021 08:01:58 -0700 (PDT) Received: by mail-pg1-x531.google.com with SMTP id 17so14174043pgp.4 for ; Sun, 22 Aug 2021 08:01:58 -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:mime-version :content-transfer-encoding; bh=2TZICNk2ZyYDy/NkvZzhboQlxO2q8ac4pmrvAC89gLY=; b=j4L5ZD9mq/vVtuwF6pld9kJkm9zup+Iu/kq80r1WwBxPMpLiB1LkWAAX+NGpQ/qFYf 8ScUZL9iFz12ceSPECixPNIIyC0UM6Ec2MKuL+vME/JN2klYifkQwF1Q10brXORZh26U duQ1sTBSE/GaCIFqtiUY9hcxeG8+zFvImqlWz18FvnSMM7RuM3AECSoCjNd9b4XbiQzK je99h2lRn+TMQJjPU9ySOxFn78tM8WVc7cn8PKQ9ZwtXVzKuVGuc0xbLojAe6yIIwxpc Nn6H1Qo3STzP0PDWgaMKR87+mbdwjNVQMIYQ3cVswoZWcSaP8/0+uxCg2uOeL61rwV3y b1wQ== 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:mime-version :content-transfer-encoding; bh=2TZICNk2ZyYDy/NkvZzhboQlxO2q8ac4pmrvAC89gLY=; b=bATPHbt5qEjzQ2vGpYfOMwDrxFJrBqo6nrWyIybL7gmsXYj8389o+iQ2dzcLUf4Fkx RyPFX66Lv4ZC60SP9Y3IKrQicQAudaTpivig7iUMZ4K9ZdZop4Q7JkDfdQP2Eve55AYR kUXBfOY2qFjFDU5NH5Nhfs8SqJPgkcJZoKtZ0QjDuTCHFE1YHqGNWKqgvMrc0SRP4NxU yhHxuWFhoipUfi/wGioFqZwekRLaHU/3AdQyfuPeNmzRvaOhvxYCRpHMa1aqAnT6TMi4 YUqEL+1sNeQ3iBIwvNaEc8cPFEQ7xQQH5KdzDRgd49lijrUs1blpGxbyvE+/4zXbhmVw 3gsw== X-Gm-Message-State: AOAM532pEkQ7rqR380NQU7CPvEQhY2TfYxg6Dx3Nj7it1lV2wc6w2DlG WYq1FHNslbA+JJRyMldeXG6BeD87DcXtng== X-Google-Smtp-Source: ABdhPJxudgHL5S6nQfXRe1ODuC2jQwZ533AvcbUk2E484lr1TqNNK/ef1vAnL86pLX53VbE7vyoejw== X-Received: by 2002:aa7:84c5:0:b0:3e1:16bb:6e22 with SMTP id x5-20020aa784c5000000b003e116bb6e22mr29767781pfn.32.1629644517396; Sun, 22 Aug 2021 08:01:57 -0700 (PDT) Received: from localhost.localdomain ([59.12.165.26]) by smtp.gmail.com with ESMTPSA id n185sm13992266pfn.171.2021.08.22.08.01.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Aug 2021 08:01:57 -0700 (PDT) From: Sidong Yang To: linux-btrfs , David Sterba , Qu Wenruo Cc: Sidong Yang Subject: [RFC PATCH v5 0/2] Add subcommand that dumps file extents Date: Sun, 22 Aug 2021 15:01:38 +0000 Message-Id: <20210822150140.44152-1-realwakka@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi, I'm want to print which device has the file_extent. but I don't know how. Maybe it could be found by find block group in extent tree and find devid in chunk tree again. I don't know it's good way to find it. is there any good way to find devid? This patch series add an subcommand in inspect-internal. It dumps file extents of the file that user provided. For avoiding duplicated code, the patch that export functions is in this series. Sidong Yang (2): btrfs-progs: export util functions about file extent items btrfs-progs: cmds: Add subcommand that dumps file extents --- v2: - Prints type and compression - Use the terms from file_extents_item like disk_bytenr not like "physical" v3: - export util functions for removing duplication - change the way to loop with search ioctl v4: - export COMPRESS_STR_LEN for using function safely v5: - Supports json format - Print hole type by checking disk_bytenr --- Makefile | 2 +- cmds/commands.h | 2 +- cmds/inspect-dump-file-extents.c | 161 +++++++++++++++++++++++++++++++ cmds/inspect.c | 1 + kernel-shared/print-tree.c | 18 ++-- kernel-shared/print-tree.h | 5 + 6 files changed, 178 insertions(+), 11 deletions(-) create mode 100644 cmds/inspect-dump-file-extents.c