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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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10
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.cpp
View file

@ -12,6 +12,14 @@
namespace Kernel {
static SysFSDeviceIdentifiersDirectory* s_the { nullptr };
SysFSDeviceIdentifiersDirectory& SysFSDeviceIdentifiersDirectory::the()
{
VERIFY(s_the);
return *s_the;
}
UNMAP_AFTER_INIT NonnullRefPtr<SysFSDeviceIdentifiersDirectory> SysFSDeviceIdentifiersDirectory::must_create(SysFSRootDirectory const& root_directory)
{
auto devices_directory = adopt_ref_if_nonnull(new SysFSDeviceIdentifiersDirectory(root_directory)).release_nonnull();
@ -20,7 +28,7 @@ UNMAP_AFTER_INIT NonnullRefPtr<SysFSDeviceIdentifiersDirectory> SysFSDeviceIdent
list.append(SysFSCharacterDevicesDirectory::must_create(*devices_directory));
return {};
}));
s_the = devices_directory;
return devices_directory;
}
SysFSDeviceIdentifiersDirectory::SysFSDeviceIdentifiersDirectory(SysFSRootDirectory const& root_directory)