Unverified Commit d94d97db authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!7686 ext4: fix corruption during on-line resize 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhihao Cheng <chengzhihao@huaweicloud.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/AGDKXKWF43YYPC5A6DLRSCEABW23V2TW/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9Q9CF 
 
Link:https://gitee.com/openeuler/kernel/pulls/7686

 

Reviewed-by: default avatarzhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 15d99104 7a385af0

fs/ext4/resize.c

+2 −1
Original line number Diff line number Diff line
@@ -1551,7 +1551,8 @@ static int ext4_flex_group_add(struct super_block *sb, 
		int gdb_num = group / EXT4_DESC_PER_BLOCK(sb);

		int gdb_num_end = ((group + flex_gd->count - 1) /

				   EXT4_DESC_PER_BLOCK(sb));

		int meta_bg = ext4_has_feature_meta_bg(sb);

		int meta_bg = ext4_has_feature_meta_bg(sb) &&

			      gdb_num >= le32_to_cpu(es->s_first_meta_bg);

		sector_t padding_blocks = meta_bg ? 0 : sbi->s_sbh->b_blocknr -

					 ext4_group_first_block_no(sb, 0);

		sector_t old_gdb = 0;