Re: [PATCH v7 09/24] x86/resctrl: Introduce bitmap mbm_cntr_free_map to track assignable counters

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Hi Reinette,

On 9/23/24 17:28, Reinette Chatre wrote:
> Hi Babu,
> 
> On 9/23/24 11:33 AM, Moger, Babu wrote:
>> Hi Reinette,
>>
>> On 9/19/24 11:42, Reinette Chatre wrote:
>>> Hi Babu,
>>>
>>> On 9/4/24 3:21 PM, Babu Moger wrote:
>>>> Hardware provides a set of counters when mbm_cntr_assignable feature is
>>>> supported. These counters are used for assigning the events in resctrl
>>>> a group when the feature is enabled. The kernel must manage and track the
>>>
>>> The second sentence ("These counters ...") is difficult to parse.
>>
>> How about?
>>
>> Counters are used for assigning the events in resctrl group.
> 
> Apologies but I am just not able to parse this. How about: "These counters
> are assigned to the MBM monitoring events of a MON group that needs to
> be tracked."

Sure.

> ...
> 
>>>> + */
>>>> +static int mbm_cntrs_init(struct rdt_resource *r)
>>>
>>> Needs __init?
>>
>> Did you mean to merge this with dom_data_init and don't have to have a
>> separate function. Please clarify.
> 
> Here I was referring to the actual __init storage class attribute. Since
> mbm_cntrs_init() is only called by __init code, it too should have the
> __init storage class attribute.
> I do expect that mbm_cntrs_init() will be called by dom_data_init() and
> care should be taken when making this change since it seems that dom_data_init()
> itself needs the __init storage class attribute. Looks like this was missed
> by commit bd334c86b5d7 ("x86/resctrl: Add __init attribute to rdt_get_mon_l3_config()")

Sure. I can take care of this.

-- 
Thanks
Babu Moger




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