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Kernel: Ensure we flush the entire ext2 superblock

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Liav A
2020-04-06 16:50:24 +03:00
committed by Andreas Kling
parent 061badeaea
commit 65dd9d5ad3
Notes: sideshowbarker 2024-07-19 07:50:58 +09:00 
Author: https://github.com/supercomputer7
Commit: https://github.com/SerenityOS/serenity/commit/65dd9d5ad30
Pull-request: https://github.com/SerenityOS/serenity/pull/1668
3 changed files with 26 additions and 2 deletions
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6
Kernel/FileSystem/Ext2FileSystem.cpp
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@@ -81,7 +81,8 @@ Ext2FS::~Ext2FS()
bool Ext2FS::flush_super_block()
{
LOCKER(m_lock);
bool success = raw_write(2, (const u8*)&m_super_block);
ASSERT((sizeof(ext2_super_block) % logical_block_size()) == 0);
bool success = raw_write_blocks(2, (sizeof(ext2_super_block) / logical_block_size()), (const u8*)&m_super_block);
ASSERT(success);
return true;
}
@@ -96,7 +97,8 @@ const ext2_group_desc& Ext2FS::group_descriptor(GroupIndex group_index) const
bool Ext2FS::initialize()
{
LOCKER(m_lock);
bool success = raw_read(2, (u8*)&m_super_block);
ASSERT((sizeof(ext2_super_block) % logical_block_size()) == 0);
bool success = raw_read_blocks(2, (sizeof(ext2_super_block) / logical_block_size()), (u8*)&m_super_block);
ASSERT(success);
auto& super_block = this->super_block();