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Kernel: Protect PCI access with spinlock instead of mutex

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This commit is contained in:
Andreas Kling 2022-02-03 15:46:59 +01:00
parent 200589ba27
commit 64254b5df8
2 changed files with 11 additions and 12 deletions
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5
Kernel/Bus/PCI/Access.h
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@ -36,7 +36,7 @@ public:
DeviceIdentifier get_device_identifier(Address address) const;
Spinlock const& scan_lock() const { return m_scan_lock; }
Mutex const& access_lock() const { return m_access_lock; }
RecursiveSpinlock const& access_lock() const { return m_access_lock; }
void add_host_controller_and_enumerate_attached_devices(NonnullOwnPtr<HostController>, Function<void(DeviceIdentifier const&)> callback);
@ -51,8 +51,7 @@ private:
Vector<Capability> get_capabilities(Address);
Optional<u8> get_capabilities_pointer(Address address);
// General Data-members
mutable Mutex m_access_lock;
mutable RecursiveSpinlock m_access_lock;
mutable Spinlock m_scan_lock;
HashMap<u32, NonnullOwnPtr<HostController>> m_host_controllers;