How to use Map.Update on a percpu array?

[Ghostbaby]

• CODE

type MemberFieldsOffset struct {
	Ready                          uint8
	TaskFilesOffset                uint32
	SockFlagsOffset                uint32
	TcpSockCopiedSeqOffset         uint32
	TcpSockWriteSeqOffset          uint32
	StructFilesStructFdtOffset     uint32
	StructFilesPrivateDataOffset   uint32
	StructFileFInodeOffset         uint32
	StructInodeIModeOffset         uint32
	StructFileDentryOffset         uint32
	StructDentryNameOffset         uint32
	StructSockFamilyOffset         uint32
	StructSockSaddrOffset          uint32
	StructSockDaddrOffset          uint32
	StructSockIp6saddrOffset       uint32
	StructSockIp6daddrOffset       uint32
	StructSockDportOffset          uint32
	StructSockSportOffset          uint32
	StructSockSkcStateOffset       uint32
	StructSockCommonIpv6onlyOffset uint32
}

...
	if err := m.Update(0, []metadata.MemberFieldsOffset{offset}, ebpf.UpdateAny); err != nil {
		return fmt.Errorf("更新偏移量映射失败: %w", err)
	}
...

• ERROR

marshal value: metadata.MemberFieldsOffset doesn't marshal to 80 bytes

[Ghostbaby]

解决方法：
https://github.com/cen-ngc5139/nfs-trace/issues/89#issuecomment-2423579581

[ti-mo]

@Ghostbaby Please stick to English on the issue tracker and Q&A. Thanks for linking your solution, though.