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Kernel: Don't lock Ext2FS while reading and writing blocks

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There is really no reason for this. The underlying block devices are
(should be) thread safe themselves
This commit is contained in:
Bananymous
2026-05-09 21:38:18 +03:00
parent 0bf7328e04
commit 5f237abc3b
1 changed files with 2 additions and 10 deletions
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12
kernel/kernel/FS/Ext2/FileSystem.cpp
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@@ -307,31 +307,27 @@ namespace Kernel
BAN::ErrorOr<void> Ext2FS::read_block(uint32_t block, BlockBufferWrapper& buffer)
{
LockGuard _(m_mutex);
const uint32_t sector_size = m_block_device->blksize();
const uint32_t block_size = this->block_size();
const uint32_t sectors_per_block = block_size / sector_size;
ASSERT(block >= superblock().first_data_block + 1);
ASSERT(buffer.size() >= block_size);
TRY(m_block_device->read_blocks(block * sectors_per_block, sectors_per_block, buffer.span()));
TRY(m_block_device->read_blocks(block * sectors_per_block, sectors_per_block, buffer.span()));
return {};
}
BAN::ErrorOr<void> Ext2FS::write_block(uint32_t block, const BlockBufferWrapper& buffer)
{
LockGuard _(m_mutex);
const uint32_t sector_size = m_block_device->blksize();
const uint32_t block_size = this->block_size();
const uint32_t sectors_per_block = block_size / sector_size;
ASSERT(block >= superblock().first_data_block + 1);
ASSERT(buffer.size() >= block_size);
TRY(m_block_device->write_blocks(block * sectors_per_block, sectors_per_block, buffer.span()));
TRY(m_block_device->write_blocks(block * sectors_per_block, sectors_per_block, buffer.span()));
return {};
}
@@ -339,8 +335,6 @@ namespace Kernel
{
auto superblock_buffer = TRY(get_block_buffer());
LockGuard _(m_mutex);
const uint32_t sector_size = m_block_device->blksize();
ASSERT(1024 % sector_size == 0);
@@ -364,8 +358,6 @@ namespace Kernel
BAN::ErrorOr<void> Ext2FS::sync_block(uint32_t block)
{
LockGuard _(m_mutex);
const uint32_t sector_size = m_block_device->blksize();
const uint32_t block_size = this->block_size();
const uint32_t sectors_per_block = block_size / sector_size;