From: Yongqiang Yang <xiaoqiangnk@gmail.com>
To: linux-ext4@vger.kernel.org
Cc: aedilger@gmail.com, tytso@mit.edu,
Yongqiang Yang <xiaoqiangnk@gmail.com>
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 [thread overview]
Message-ID: <1313033308-882-9-git-send-email-xiaoqiangnk@gmail.com> (raw)
In-Reply-To: <1313033308-882-1-git-send-email-xiaoqiangnk@gmail.com>
This patch adds a function named ext4_setup_new_descs() which sets up
a flex groups each time.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
---
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.
*
--
1.7.5.1
next prev parent reply other threads:[~2011-08-11 3:35 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-11 3:28 New resize interface implementation Yongqiang Yang
2011-08-11 3:28 ` [PATCH 01/13] ext4: add a function which extends a group without checking parameters Yongqiang Yang
2011-08-11 5:47 ` Andreas Dilger
2011-08-11 6:27 ` Yongqiang Yang
2011-08-21 17:07 ` Ted Ts'o
2011-08-22 2:51 ` Andreas Dilger
2011-08-11 3:28 ` [PATCH 02/13] ext4: add a function which adds a new desc to a fs Yongqiang Yang
2011-08-11 5:49 ` Andreas Dilger
2011-08-11 3:28 ` [PATCH 03/13] ext4: add a function which sets up a new group desc Yongqiang Yang
2011-08-11 6:42 ` Andreas Dilger
2011-08-12 8:49 ` Yongqiang Yang
2011-08-11 3:28 ` [PATCH 04/13] ext4: add a function which updates super block Yongqiang Yang
2011-08-11 3:28 ` [PATCH 05/13] ext4: add a structure which will be used by 64bit-resize interface Yongqiang Yang
2011-08-11 10:57 ` Steven Liu
2011-08-11 3:28 ` [PATCH 06/13] ext4: add a function which sets up group blocks of a flex groups Yongqiang Yang
2011-08-11 3:28 ` [PATCH 07/13] ext4: add a function which adds several group descriptors Yongqiang Yang
2011-08-11 3:28 ` Yongqiang Yang [this message]
2011-08-11 3:28 ` [PATCH 09/13] ext4: enable ext4_update_super() to handle a flex groups Yongqiang Yang
2011-08-11 3:28 ` [PATCH 10/13] ext4: pass verify_reserved_gdb() the number of group decriptors Yongqiang Yang
2011-08-11 3:28 ` [PATCH 11/13] ext4: add a new function which allocates bitmaps and inode tables Yongqiang Yang
2011-08-11 3:28 ` [PATCH 12/13] ext4: add a new function which adds a flex group to a fs Yongqiang Yang
2011-08-11 3:28 ` [PATCH 13/13] ext4: add new online resize interface Yongqiang Yang
[not found] ` <CAKgsxVQAwEetdyGcOciA8+wi_eLA7Fmq60kfDvEK1WzgYxdUMQ@mail.gmail.com>
2011-08-17 7:28 ` New resize interface implementation Yongqiang Yang
[not found] ` <CAKgsxVSfrCt6tyxDdczLYFu0YeGXfuEAA=o_5T4TOkeNXSG8iA@mail.gmail.com>
2011-08-26 20:06 ` Justin Maggard
2011-09-01 12:30 ` Amir Goldstein
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