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Kernel/SysFS: Add /sys/devices/storage directory

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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.
This commit is contained in:
Liav A 2022-04-23 11:48:40 +03:00 • committed by Andreas Kling
parent 22335e53e0
commit 1dbd32488f
19 changed files with 450 additions and 1 deletions
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30
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceDirectory.h Normal file
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/*
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/FileSystem/SysFS/Component.h>
#include <Kernel/KString.h>
#include <Kernel/Storage/StorageDevice.h>
namespace Kernel {
class StorageDeviceAttributeSysFSComponent;
class StorageDeviceSysFSDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<StorageDeviceSysFSDirectory> create(SysFSDirectory const&, StorageDevice const&);
virtual StringView name() const override { return m_device_directory_name->view(); }
StorageDevice const& device(Badge<StorageDeviceAttributeSysFSComponent>) const;
private:
StorageDeviceSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const&, StorageDevice const&);
RefPtr<StorageDevice> m_device;
NonnullOwnPtr<KString> m_device_directory_name;
};
}