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Kernel/Storage: Use more locking in the IDE code

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This change should make it less possible for race conditions to happen
and cause fatal errors when accessing the hardware.
This commit is contained in:
Liav A 2021-03-27 09:53:59 +03:00 • committed by Andreas Kling
parent 8b446fb579
commit b96e4c1308
3 changed files with 58 additions and 44 deletions
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5
Kernel/Storage/IDEChannel.h
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@ -163,10 +163,11 @@ protected:
RefPtr<StorageDevice> m_master;
RefPtr<StorageDevice> m_slave;
AsyncBlockDeviceRequest* m_current_request { nullptr };
u32 m_current_request_block_index { 0 };
RefPtr<AsyncBlockDeviceRequest> m_current_request;
size_t m_current_request_block_index { 0 };
bool m_current_request_flushing_cache { false };
SpinLock<u8> m_request_lock;
Lock m_lock { "IDEChannel" };
IOAddressGroup m_io_group;
NonnullRefPtr<IDEController> m_parent_controller;