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Kernel: StorageDevice and Ext2 "support" writing

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Bananymous
2023-03-23 12:54:59 +02:00
parent 5f6c58ffd2
commit 9b56801c3d
7 changed files with 88 additions and 3 deletions
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19
kernel/kernel/FS/Ext2.cpp
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@@ -212,7 +212,7 @@ namespace Kernel
return block;
}
ASSERT(false);
ASSERT_NOT_REACHED();
}
BAN::ErrorOr<size_t> Ext2Inode::read(size_t offset, void* buffer, size_t count)
@@ -458,9 +458,9 @@ namespace Kernel
BAN::ErrorOr<BAN::Vector<uint8_t>> Ext2FS::read_block(uint32_t block)
{
const uint32_t sector_size = m_partition.device().sector_size();
uint32_t block_size = 1024 << m_superblock.log_block_size;
const uint32_t block_size = 1024 << m_superblock.log_block_size;
ASSERT(block_size % sector_size == 0);
uint32_t sectors_per_block = block_size / sector_size;
const uint32_t sectors_per_block = block_size / sector_size;
BAN::Vector<uint8_t> block_buffer;
TRY(block_buffer.resize(block_size));
@@ -470,4 +470,17 @@ namespace Kernel
return block_buffer;
}
BAN::ErrorOr<void> Ext2FS::write_block(uint32_t block, BAN::Span<const uint8_t> data)
{
const uint32_t sector_size = m_partition.device().sector_size();
const uint32_t block_size = 1024 << m_superblock.log_block_size;
ASSERT(block_size % sector_size == 0);
ASSERT(data.size() <= block_size);
const uint32_t sectors_per_block = block_size / sector_size;
TRY(m_partition.write_sectors(block * sectors_per_block, sectors_per_block, data.data()));
return {};
}
}