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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 0ECC6C433DB for ; Mon, 28 Dec 2020 00:33:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C442722582 for ; Mon, 28 Dec 2020 00:33:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726314AbgL1Acu (ORCPT ); Sun, 27 Dec 2020 19:32:50 -0500 Received: from mx2.suse.de ([195.135.220.15]:53864 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726226AbgL1Acu (ORCPT ); Sun, 27 Dec 2020 19:32:50 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1609115523; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=opiyRlgP8WdR3inTVAmZCPZEQjAAk6aeGaTtyQAw4Vg=; b=bjqYxvJS+V/M7N8tXSyLC3bJo8spyIFWU9FiTueMKpV0JXQyjndxVQlaWAuuUIe6J7mJ0E Dc/W/L3M5ZXGLRBynA3zAn7lWudrkdpYT7c4WWv9Wv5o496Q4H3FLipu7HePBkVsEZyVjC dwJJw5c9dw8kgqQLznuft7NNzoAeS4k= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 97876AE40 for ; Mon, 28 Dec 2020 00:32:03 +0000 (UTC) From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH v5 0/4] btrfs-progs: image: new data dump feature Date: Mon, 28 Dec 2020 08:31:55 +0800 Message-Id: <20201228003159.115343-1-wqu@suse.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This patchset includes the following features: - Introduce data dump feature to dump the whole fs. This will introduce a new magic number to prevent old btrfs-image to hit failure as the item size limit is enlarged. Patch 1 and 2. - Reduce memory usage for compressed data dump restore This is mostly due to the fact that we have much larger max_pending_size introduced by data dump(256K -> 256M). Using 4 * max_pending_size for each decompress thread as buffer is way too expensive now. Use proper inflate() to replace uncompress() calls. Patch 3 - A fix for small dev extent size mismatch with superblock This no longer affects single device dump restore, thus it's only for multi-device dump restore. Patch 4 Changelog: v2: - New small fixes: * Fix a confusing error message due to unpopulated errno * Output error message for chunk tree build error - Fix a regression of previous version Patch "btrfs-progs: image: Rework how we search chunk tree blocks" deleted a "ret = 0" line which could cause false early exit. - Reduce memory usage for data dump v2.1: - Rebased to devel branch Removing 4 already merged patches from the patchset. - Re-order the patchset Put small and independent patches at the top of queue, and put the data dump related feature at the end. - Fix -Wmaybe-uninitialized warnings Strangely, D=1 won't trigger these warnings thus they sneak into v2 without being detected. - Fix FROM: line Reverted to old smtp setup. The new setup will override FROM: line, messing up the name of author. v3: - Fix a wrong option in error string - Fix a bug that we always dump data extents v4: - Rebased to latest devel branch - Add a new small fix to kill the tiny dev extent size mismatch. v5: - Rebased to latest devel branch - Checkpatch fixes Qu Wenruo (4): btrfs-progs: image: introduce framework for more dump versions btrfs-progs: image: introduce -d option to dump data btrfs-progs: image: reduce memory requirement for decompression btrfs-progs: image: fix restored image size misalignment image/main.c | 349 ++++++++++++++++++++++++++++++++++------------- image/metadump.h | 13 +- 2 files changed, 265 insertions(+), 97 deletions(-) -- 2.29.2