mirror of
https://github.com/RGBCube/serenity
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b02ee664e7
To do this we also need to get rid of LockRefPtrs in the USB code as well. Most of the SysFS nodes are statically generated during boot and are not mutated afterwards. The same goes for general device code - once we generate the appropriate SysFS nodes, we almost never mutate the node pointers afterwards, making locking unnecessary.
43 lines
1.9 KiB
C++
43 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Bus/PCI/API.h>
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#include <Kernel/Bus/PCI/Access.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceAttribute.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceDirectory.h>
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#include <Kernel/Sections.h>
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#include <Kernel/Storage/StorageDevice.h>
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namespace Kernel {
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StorageDevice const& StorageDeviceSysFSDirectory::device(Badge<StorageDeviceAttributeSysFSComponent>) const
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{
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return *m_device;
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}
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UNMAP_AFTER_INIT NonnullRefPtr<StorageDeviceSysFSDirectory> StorageDeviceSysFSDirectory::create(SysFSDirectory const& parent_directory, StorageDevice const& device)
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{
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// FIXME: Handle allocation failure gracefully
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auto lun_address = device.logical_unit_number_address();
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auto device_name = MUST(KString::formatted("{:02x}:{:02x}.{}", lun_address.controller_id, lun_address.target_id, lun_address.disk_id));
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auto directory = adopt_ref(*new (nothrow) StorageDeviceSysFSDirectory(move(device_name), parent_directory, device));
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MUST(directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
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list.append(StorageDeviceAttributeSysFSComponent::must_create(*directory, StorageDeviceAttributeSysFSComponent::Type::EndLBA));
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list.append(StorageDeviceAttributeSysFSComponent::must_create(*directory, StorageDeviceAttributeSysFSComponent::Type::SectorSize));
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list.append(StorageDeviceAttributeSysFSComponent::must_create(*directory, StorageDeviceAttributeSysFSComponent::Type::CommandSet));
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return {};
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}));
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return directory;
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}
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UNMAP_AFTER_INIT StorageDeviceSysFSDirectory::StorageDeviceSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const& parent_directory, StorageDevice const& device)
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: SysFSDirectory(parent_directory)
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, m_device(device)
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, m_device_directory_name(move(device_directory_name))
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{
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}
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}
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