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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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3
Kernel/FileSystem/SysFS/RootDirectory.cpp
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@ -8,6 +8,7 @@
#include <Kernel/FileSystem/SysFS/RootDirectory.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Bus/Directory.h>
#include <Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Devices/Directory.h>
#include <Kernel/Sections.h>
namespace Kernel {
@ -21,9 +22,11 @@ SysFSRootDirectory::SysFSRootDirectory()
{
auto buses_directory = SysFSBusDirectory::must_create(*this);
auto device_identifiers_directory = SysFSDeviceIdentifiersDirectory::must_create(*this);
auto devices_directory = SysFSDevicesDirectory::must_create(*this);
MUST(m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(buses_directory);
list.append(device_identifiers_directory);
list.append(devices_directory);
return {};
}));
m_buses_directory = buses_directory;