Hi,
> @@ -358,6 +361,7 @@ group_add_out:
> ext4_fsblk_t n_blocks_count;
> struct super_block *sb = inode->i_sb;
> int err = 0, err2 = 0;
> + ext4_group_t o_group = EXT4_SB(sb)->s_groups_count;
>
> if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
> EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
> @@ -388,6 +392,11 @@ group_add_out:
> if (err == 0)
> err = err2;
> mnt_drop_write_file(filp);
> + if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
Maybe a n00b question Ted, but can o_group here be bigger than ->s_groups_count
in any chance?
The patch looks good,
Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
--
Carlos
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