Re: [PATCH v8 8/8] x86/resctrl: Display hardware ids of resource groups

[Reinette Chatre]

Hi Babu,

On 9/1/2023 10:28 AM, Moger, Babu wrote:
> On 8/31/23 19:43, Reinette Chatre wrote:
>> On 8/31/2023 4:58 PM, Moger, Babu wrote:
>>> @@ -3336,6 +3340,9 @@ static int mkdir_rdt_prepare(struct kernfs_node
>>> *parent_kn,
>>>         else
>>>                 files = RFTYPE_BASE | RFTYPE_MON;
>>>
>>> +       if (rdt_mon_capable)
>>> +               files |= RFTYPE_MON;
>>> +
>>
>> Is this not redundant considering what just happened a few lines above?
> 
> Yea. Right. I will change the previous line to
> 
> files = RFTYPE_BASE;
> 

This is not clear to me. If I understand correctly this means that
when rtype == RDTMON_GROUP then files = RFTYPE_BASE?
This does not sound right to me. I think it would be awkward to to set
files = RFTYPE_BASE if rtype == RDTMON_GROUP and then later do another
test using rdt_mon_capable to set the correct flag. It should be possible
to integrate this better.

What is needed is:
When group is a control group:
	files = RFTYPE_BASE | RFTYPE_CTRL;
When group is a monitor group:
	files = RFTYPE_BASE | RFTYPE_MON;
When group is a monitor and control group then:
	files = RFTYPE_BASE | RFTYPE_CTRL | RFTYPE_MON;

How about just moving the "if (rdt_mon_capable)" check into the 
snippet that sets the flag for a control group?

Reinette