From patchwork Fri Dec 30 10:53:50 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongqiang Yang X-Patchwork-Id: 133653 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 5E390B6F9F for ; Sat, 31 Dec 2011 01:37:23 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751362Ab1L3OhV (ORCPT ); Fri, 30 Dec 2011 09:37:21 -0500 Received: from mail-iy0-f174.google.com ([209.85.210.174]:45478 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751292Ab1L3OhU (ORCPT ); Fri, 30 Dec 2011 09:37:20 -0500 Received: by mail-iy0-f174.google.com with SMTP id h11so25392161iae.19 for ; Fri, 30 Dec 2011 06:37:20 -0800 (PST) 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=ZS5AGXWO2aXV79BO/zvb9tzAOhCWkoXJGShVsUBD474=; b=l8C/w4+xQeLR/yGhjJiKe5TXQDeHUNHWRXnAbahCndBmF1u+zLyvvE6F1k851Cm41X kSgVZc1xbSfwRHzBc7RX6piX9OzucvV04tr2EAM+j41LNmmWw6rgJ2u7wLcmDRN9n3Se Lb2qMD+vMrrudwxE5VWDp3tuRDMf1T+Sgt0Sc= Received: by 10.50.184.166 with SMTP id ev6mr45831946igc.2.1325255840369; Fri, 30 Dec 2011 06:37:20 -0800 (PST) Received: from localhost.localdomain ([159.226.43.42]) by mx.google.com with ESMTPS id pb6sm55150642igc.5.2011.12.30.06.37.18 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 30 Dec 2011 06:37:19 -0800 (PST) From: Yongqiang Yang To: tytso@mit.edu Cc: linux-ext4@vger.kernel.org, Yongqiang Yang Subject: [PATCH V6 08/15] ext4: add a function which sets up a flex groups each time Date: Fri, 30 Dec 2011 18:53:50 +0800 Message-Id: <1325242437-26934-9-git-send-email-xiaoqiangnk@gmail.com> X-Mailer: git-send-email 1.7.5.1 In-Reply-To: <1325242437-26934-1-git-send-email-xiaoqiangnk@gmail.com> References: <1325242437-26934-1-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 From: Yongqiang Yang 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 d0d0ade..f82cbee 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; @@ -1144,7 +1145,7 @@ static int ext4_setup_new_desc(handle_t *handle, struct super_block *sb, ext4_free_group_clusters_set(sb, gdp, EXT4_B2C(sbi, 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); @@ -1163,6 +1164,26 @@ 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. *