[devel-5.10-rt]Some modifications related to vtime · Pull Request !54 · anolis/embedded-kernel

sched/vtime: Consolidate IRQ time accounting
    
    The 3 architectures implementing CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
    all have their own version of irq time accounting that dispatch the
    cputime to the appropriate index: hardirq, softirq, system, idle,
    guest... from an all-in-one function.
    
    Instead of having these ad-hoc versions, move the cputime destination
    dispatch decision to the core code and leave only the actual per-index
    cputime accounting to the architecture.
    upstream:
    29f7e9a994a43a4d93063074237b201b1b8faa5e
    
    s390/vtime: Use the generic IRQ entry accounting
    
    s390 has its own version of IRQ entry accounting because it doesn't
    account the idle time the same way the other architectures do. Only
    the actual idle sleep time is accounted as idle time, the rest of the
    idle task execution is accounted as system time.
    
    Make the generic IRQ entry accounting aware of architectures that have
    their own way of accounting idle time and convert s390 to use it.
    
    This prepares s390 to get involved in further consolidations of IRQ
    time accounting.
    upstream:
    6fa72e9d817ebcb72555896d19dfa24533e106d4

sched/cputime: Remove symbol exports from IRQ time
     accounting
    
    account_irq_enter_time() and account_irq_exit_time() are not called
    from modules. EXPORT_SYMBOL_GPL() can be safely removed from the IRQ
    cputime accounting functions called from there.
    upstream:
    193e6814b74c01be310ae0d8c894e868e83d4e85

类型	指派人员	状态
审查	ralf003 张润 meganz009 liuchun22 ZTE-HuangJian	进行中 (0/1人)
测试	ranmaosheng meganz009 杨洋 liuchun22 ZTE-HuangJian	进行中 (0/1人)

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