diff options
| -rw-r--r-- | fs/ext4/resize.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index eb720d9e2953..5b56aa6c13f2 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1954,6 +1954,26 @@ retry: } } + /* + * Make sure the last group has enough space so that it's + * guaranteed to have enough space for all metadata blocks + * that it might need to hold. (We might not need to store + * the inode table blocks in the last block group, but there + * will be cases where this might be needed.) + */ + if ((ext4_group_first_block_no(sb, n_group) + + ext4_group_overhead_blocks(sb, n_group) + 2 + + sbi->s_itb_per_group + sbi->s_cluster_ratio) >= n_blocks_count) { + n_blocks_count = ext4_group_first_block_no(sb, n_group); + n_group--; + n_blocks_count_retry = 0; + if (resize_inode) { + iput(resize_inode); + resize_inode = NULL; + } + goto retry; + } + /* extend the last group */ if (n_group == o_group) add = n_blocks_count - o_blocks_count; |