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Ext2FS: Fix block allocation ignoring the very last block group

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The block group indices are 1-based for some reason. Because of that,
we were forgetting to check in the very last block group when doing
block allocation. This caused block allocation to fail even when the
superblock indicated that we had free blocks.

Fixes #3674.
This commit is contained in:
Andreas Kling 2020-10-07 13:42:17 +02:00
parent d1592643a6
commit eeffd5be07
1 changed files with 1 additions and 1 deletions
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2
Kernel/FileSystem/Ext2FileSystem.cpp
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@ -1135,7 +1135,7 @@ Vector<Ext2FS::BlockIndex> Ext2FS::allocate_blocks(GroupIndex preferred_group_in
} else {
if (group_index == preferred_group_index)
group_index = 1;
for (; group_index < m_block_group_count; ++group_index) {
for (; group_index <= m_block_group_count; ++group_index) {
if (group_descriptor(group_index).bg_free_blocks_count) {
found_a_group = true;
break;