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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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31
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/Directory.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/Forward.h>
namespace Kernel {
class StorageDeviceSysFSDirectory;
class StorageDevice;
class SysFSStorageDirectory : public SysFSDirectory {
friend class SysFSComponentRegistry;
public:
virtual StringView name() const override { return "storage"sv; }
static SysFSStorageDirectory& the();
static NonnullRefPtr<SysFSStorageDirectory> must_create(SysFSDevicesDirectory const&);
void plug(Badge<StorageDevice>, StorageDeviceSysFSDirectory&);
void unplug(Badge<StorageDevice>, SysFSDirectory&);
private:
explicit SysFSStorageDirectory(SysFSDevicesDirectory const&);
};
}