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Ext2FS: Fail the mount if BGD table cache allocation fails

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Instead of asserting if we can't allocate enough memory for a BGD table
cache, just fail the mount instead.
This commit is contained in:
Andreas Kling
2020-12-18 13:18:47 +01:00
parent 8cde8ba511
commit 47da86d136
2 changed files with 9 additions and 5 deletions
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8
Kernel/FileSystem/Ext2FileSystem.cpp
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@@ -141,8 +141,12 @@ bool Ext2FS::initialize()
unsigned blocks_to_read = ceil_div(m_block_group_count * sizeof(ext2_group_desc), block_size());
BlockIndex first_block_of_bgdt = block_size() == 1024 ? 2 : 1;
m_cached_group_descriptor_table = KBuffer::create_with_size(block_size() * blocks_to_read, Region::Access::Read | Region::Access::Write, "Ext2FS: Block group descriptors");
auto buffer = UserOrKernelBuffer::for_kernel_buffer(m_cached_group_descriptor_table.value().data());
m_cached_group_descriptor_table = KBuffer::try_create_with_size(block_size() * blocks_to_read, Region::Access::Read | Region::Access::Write, "Ext2FS: Block group descriptors");
if (!m_cached_group_descriptor_table) {
dbgln("Ext2FS: Failed to allocate memory for group descriptor table");
return false;
}
auto buffer = UserOrKernelBuffer::for_kernel_buffer(m_cached_group_descriptor_table->data());
read_blocks(first_block_of_bgdt, blocks_to_read, buffer);
#ifdef EXT2_DEBUG