From patchwork Thu Jan 11 07:35:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Su Yue X-Patchwork-Id: 10157421 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8C3F6601A1 for ; Thu, 11 Jan 2018 07:31:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B29F286F2 for ; Thu, 11 Jan 2018 07:31:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6E384286F8; Thu, 11 Jan 2018 07:31:17 +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=-6.9 required=2.0 tests=BAYES_00,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 0ECC0286F2 for ; Thu, 11 Jan 2018 07:31:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932102AbeAKHbP (ORCPT ); Thu, 11 Jan 2018 02:31:15 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:53400 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753959AbeAKHbN (ORCPT ); Thu, 11 Jan 2018 02:31:13 -0500 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="35167963" Received: from bogon (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 11 Jan 2018 15:31:10 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 99E2649F0F85 for ; Thu, 11 Jan 2018 15:31:12 +0800 (CST) Received: from archlinux.g08.fujitsu.local (10.167.226.31) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 11 Jan 2018 15:31:10 +0800 From: Su Yue To: CC: Subject: [PATCH v3 10/17] btrfs-progs: lowmem check: remove parameter @trans of delete_extent_item() Date: Thu, 11 Jan 2018 15:35:04 +0800 Message-ID: <20180111073511.25288-11-suy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180111073511.25288-1-suy.fnst@cn.fujitsu.com> References: <20180111073511.25288-1-suy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.31] X-yoursite-MailScanner-ID: 99E2649F0F85.AA237 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: suy.fnst@cn.fujitsu.com Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch removes the parameter @trans of delete_extent_item(). It calls try_avoid_extents_overwrite() and starts a transaction by itself. Note: This patch and next patches cause error in lowmem repair like: "Error: Commit_root already set when starting transaction". This error will disappear after removing @trans finished. Signed-off-by: Su Yue --- cmds-check.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/cmds-check.c b/cmds-check.c index cd8b6ed3898f..aebae43c1fa7 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -13492,13 +13492,22 @@ out: return err; } -static int delete_extent_tree_item(struct btrfs_trans_handle *trans, - struct btrfs_root *root, +static int delete_extent_tree_item(struct btrfs_root *root, struct btrfs_path *path) { struct btrfs_key key; + struct btrfs_trans_handle *trans; int ret = 0; + ret = try_avoid_extents_overwrite(root->fs_info); + if (ret) + return ret; + trans = btrfs_start_transaction(root, 1); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + error("fail to start transaction %s", strerror(-ret)); + goto out; + } btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]); btrfs_release_path(path); ret = btrfs_search_slot(trans, root, &key, path, -1, 1); @@ -13516,6 +13525,7 @@ static int delete_extent_tree_item(struct btrfs_trans_handle *trans, else path->slots[0]--; out: + btrfs_commit_transaction(trans, root); if (ret) error("failed to delete root %llu item[%llu, %u, %llu]", root->objectid, key.objectid, key.type, key.offset); @@ -13567,7 +13577,7 @@ again: ret = check_block_group_item(fs_info, eb, slot); if (repair && ret & REFERENCER_MISSING) - ret = delete_extent_tree_item(trans, root, path); + ret = delete_extent_tree_item(root, path); err |= ret; break; case BTRFS_DEV_ITEM_KEY: @@ -13598,7 +13608,7 @@ again: key.objectid, -1); if (repair && ret & (REFERENCER_MISMATCH | REFERENCER_MISSING)) - ret = delete_extent_tree_item(trans, root, path); + ret = delete_extent_tree_item(root, path); err |= ret; break; case BTRFS_EXTENT_DATA_REF_KEY: @@ -13611,7 +13621,7 @@ again: btrfs_extent_data_ref_count(eb, dref)); if (repair && ret & (REFERENCER_MISMATCH | REFERENCER_MISSING)) - ret = delete_extent_tree_item(trans, root, path); + ret = delete_extent_tree_item(root, path); err |= ret; break; case BTRFS_SHARED_BLOCK_REF_KEY: @@ -13619,7 +13629,7 @@ again: key.objectid, -1); if (repair && ret & (REFERENCER_MISMATCH | REFERENCER_MISSING)) - ret = delete_extent_tree_item(trans, root, path); + ret = delete_extent_tree_item(root, path); err |= ret; break; case BTRFS_SHARED_DATA_REF_KEY: @@ -13627,7 +13637,7 @@ again: key.objectid); if (repair && ret & (REFERENCER_MISMATCH | REFERENCER_MISSING)) - ret = delete_extent_tree_item(trans, root, path); + ret = delete_extent_tree_item(root, path); err |= ret; break; default: