[PATCH] riscv: add tracepoints for page fault

[Zhu Hengbo]

On 2024/7/15 21:36, Matthew Wilcox wrote:
> On Mon, Jul 15, 2024 at 10:13:55AM +0000, Zhu Hengbo wrote:
>> Introduce page_fault_user and page_fault_kernel for riscv page fault.
>> Help to get more detail information when page fault happen.
> Why be different from x86?
>
>         TP_printk("address=%ps ip=%ps error_code=0x%lx",
>                   (void *)__entry->address, (void *)__entry->ip,
>                   __entry->error_code) );
>
> adding the instruction pointer (ip) seems like it would be useful.
>
Yes, adding the ip information will indeed be helpful. I will update this patch.

Thanks for the suggestion.

>> +	TP_printk("user page fault, address=%ps cause=0x%lx",
>> +		  (void *)__entry->address, __entry->cause)
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