From: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
This patch adds a function named ext4_setup_new_descs() which sets up
a flex groups each time.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
---
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 bae5b4c..5223245 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1082,7 +1082,8 @@ 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;
@@ -1112,7 +1113,7 @@ 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);
@@ -1131,6 +1132,26 @@ 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
--
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