Re: [PATCH v7 5/8] x86/resctrl: Unwind the errors inside rdt_enable_ctx()

["Moger, Babu" <babu.moger@amd.com>]

Hi Reinette,

On 8/16/23 14:07, Reinette Chatre wrote:
> Hi Babu,
> 
> On 8/16/2023 11:17 AM, Moger, Babu wrote:
>> At rdt_kill_sb() the fs context is already freed. But, we can call
>> rdt_disable_ctx() with no parameter. We will have to depend on other
>> parameters to free the enabled features. We can use the same call both in
>> rdt_get_tree() (the failure path above)  and in rdt_kill_sb().
>>
>> The function rdt_disable_ctx will look like this.
>>
>> +static void rdt_disable_ctx(void)
>> +{
>> +       if (resctrl_arch_get_cdp_enabled(RDT_RESOURCE_L3))
>> +               resctrl_arch_set_cdp_enabled(RDT_RESOURCE_L3, false);
>> +
>> +       if (resctrl_arch_get_cdp_enabled(RDT_RESOURCE_L2))
>> +               resctrl_arch_set_cdp_enabled(RDT_RESOURCE_L2, false);
>> +
>> +       if (is_mba_sc(&rdt_resources_all[RDT_RESOURCE_MBA].r_resctrl))
>> +               set_mba_sc(false);
>> +}
>>
>>
> 
> This looks good to me. I think this will end up making
> cdp_disable_all() unused so it may be candidate for removal as part
> of this change.

Yes. We can remove  cdp_disable_all() at part of this patch.
-- 
Thanks
Babu Moger