Re: [RFC V3] mm: Generalize and rename notify_page_fault() as kprobe_page_fault()

Anshuman Khandual
2019-06-10T02:35:15Z

On 06/07/2019 05:33 PM, Stephen Rothwell wrote:
> Hi Anshuman,
>
> On Fri, 7 Jun 2019 16:04:15 +0530 Anshuman Khandual <anshuman.khandual@arm.com> wrote:
>>
>> +static nokprobe_inline bool kprobe_page_fault(struct pt_regs *regs,
>> + unsigned int trap)
>> +{
>> + int ret = 0;
>> +
>> + /*
>> + * To be potentially processing a kprobe fault and to be allowed
>> + * to call kprobe_running(), we have to be non-preemptible.
>> + */
>> + if (kprobes_built_in() && !preemptible() && !user_mode(regs)) {
>> + if (kprobe_running() && kprobe_fault_handler(regs, trap))
>> + ret = 1;
>> + }
>> + return ret;
>> +}
>
> Since this is now declared as "bool" (thanks for that), you should make
> "ret" be bool and use true and false;

Sure, done.