From patchwork Thu Aug 11 03:28:23 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongqiang Yang X-Patchwork-Id: 109509 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 9D803B6F67 for ; Thu, 11 Aug 2011 13:35:44 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754635Ab1HKDfn (ORCPT ); Wed, 10 Aug 2011 23:35:43 -0400 Received: from mail-pz0-f42.google.com ([209.85.210.42]:48649 "EHLO mail-pz0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753987Ab1HKDfm (ORCPT ); Wed, 10 Aug 2011 23:35:42 -0400 Received: by mail-pz0-f42.google.com with SMTP id 37so2947235pzk.1 for ; Wed, 10 Aug 2011 20:35:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=KwN7dp631yfGV4q3EHtT24w7iZ8s+P4bl0NhkFp1Alo=; b=rpHU2b3XEY/d5HpzPpXQ//UjJoCmnYlf+D7R/xiptVub2Tqg8jDNJUEs6nVrYgkTaW 3FJZrqHWvmMahzOXoy/qqJL1JWGl+5vV1ibHyMKaZShZ0dPDhqriEtAnw8BrbgCpR431 m9awmkcsWelbOwTdKoIfDl1F3Sp1e6dU2ojfo= Received: by 10.143.67.19 with SMTP id u19mr7860322wfk.158.1313033742589; Wed, 10 Aug 2011 20:35:42 -0700 (PDT) Received: from localhost.localdomain ([159.226.43.42]) by mx.google.com with ESMTPS id g4sm1390823pbj.25.2011.08.10.20.35.40 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 10 Aug 2011 20:35:42 -0700 (PDT) From: Yongqiang Yang To: linux-ext4@vger.kernel.org Cc: aedilger@gmail.com, tytso@mit.edu, Yongqiang Yang Subject: [PATCH 08/13] ext4: add a function which sets up a flex groups each time Date: Thu, 11 Aug 2011 11:28:23 +0800 Message-Id: <1313033308-882-9-git-send-email-xiaoqiangnk@gmail.com> X-Mailer: git-send-email 1.7.5.1 In-Reply-To: <1313033308-882-1-git-send-email-xiaoqiangnk@gmail.com> References: <1313033308-882-1-git-send-email-xiaoqiangnk@gmail.com> Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org This patch adds a function named ext4_setup_new_descs() which sets up a flex groups each time. Signed-off-by: Yongqiang Yang --- fs/ext4/resize.c | 25 +++++++++++++++++++++++-- 1 files changed, 23 insertions(+), 2 deletions(-) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 7e91d58..5939b62 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1114,7 +1114,8 @@ static int ext4_add_new_descs(handle_t *handle, struct super_block *sb, * @sb: super block */ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb, - struct ext4_new_group_data *input) + struct ext4_new_group_data *input, + __u16 bg_flags) { struct ext4_sb_info *sbi = EXT4_SB(sb); ext4_group_t group; @@ -1143,7 +1144,7 @@ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb, ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */ ext4_free_blks_set(sb, gdp, input->free_blocks_count); ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb)); - gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED); + gdp->bg_flags = cpu_to_le16(bg_flags); gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp); err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh); @@ -1162,6 +1163,26 @@ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb, } /* + * ext4_setup_new_descs setups group descriptors of a flex groups + */ +static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb, + struct ext4_new_flex_group_data *flex_gd) +{ + struct ext4_new_group_data *group_data = flex_gd->groups; + __u16 *bg_flags = flex_gd->bg_flags; + int i, err = 0; + + for (i = 0; i < flex_gd->count; i++) { + err = ext4_setup_new_desc(handle, sb, group_data + i, + bg_flags[i]); + if (err) + return err; + } + + return err; +} + +/* * ext4_update_super() updates super so that new the added group can be seen * by the filesystem. *