1dbd32488f
This change in fact does the following:
1. Use support for symlinks between /sys/dev/block/ storage device
identifier nodes and devices in /sys/devices/storage/{LUN}.
2. Add basic nodes in a /sys/devices/storage/{LUN} directory, to let
userspace to know about the device and its details.
39 lines
1.4 KiB
C++
39 lines
1.4 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/FileSystem/SysFS/RootDirectory.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/BlockDevicesDirectory.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/CharacterDevicesDirectory.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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static SysFSDeviceIdentifiersDirectory* s_the { nullptr };
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SysFSDeviceIdentifiersDirectory& SysFSDeviceIdentifiersDirectory::the()
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{
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VERIFY(s_the);
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return *s_the;
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}
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UNMAP_AFTER_INIT NonnullRefPtr<SysFSDeviceIdentifiersDirectory> SysFSDeviceIdentifiersDirectory::must_create(SysFSRootDirectory const& root_directory)
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{
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auto devices_directory = adopt_ref_if_nonnull(new SysFSDeviceIdentifiersDirectory(root_directory)).release_nonnull();
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MUST(devices_directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
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list.append(SysFSBlockDevicesDirectory::must_create(*devices_directory));
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list.append(SysFSCharacterDevicesDirectory::must_create(*devices_directory));
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return {};
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}));
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s_the = devices_directory;
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return devices_directory;
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}
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SysFSDeviceIdentifiersDirectory::SysFSDeviceIdentifiersDirectory(SysFSRootDirectory const& root_directory)
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: SysFSDirectory(root_directory)
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{
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}
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}
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