Hi Reinette,
On 17/11/2020 19:20, Reinette Chatre wrote:
> On 10/30/2020 9:10 AM, James Morse wrote:
>> Splitting rdt_domain up in a similar way happens in the next patch.
>> No change in behaviour, this patch just moves types around.
>
> Please remove the "this patch" term.
>> diff --git a/arch/x86/kernel/cpu/resctrl/core.c
>> b/arch/x86/kernel/cpu/resctrl/core.c
>> index e5f4ee8f4c3b..470661f2eb68 100644
>> --- a/arch/x86/kernel/cpu/resctrl/core.c
>> +++ b/arch/x86/kernel/cpu/resctrl/core.c
>> @@ -912,9 +938,14 @@ static __init bool get_rdt_resources(void)
>> static __init void rdt_init_res_defs_intel(void)
>> {
>> + struct rdt_hw_resource *hw_res;
>> struct rdt_resource *r;
>> + int i;
>> +
>> + for (i = 0; i < RDT_NUM_RESOURCES; i++) {
>> + hw_res = &rdt_resources_all[i];
>> + r = &rdt_resources_all[i].resctrl;
>> - for_each_rdt_resource(r) {
>> if (r->rid == RDT_RESOURCE_L3 ||
>> r->rid == RDT_RESOURCE_L3DATA ||
>> r->rid == RDT_RESOURCE_L3CODE ||
>
> Could using for_each_rdt_resource() remain with the additional assignment of
> hw_res?
> Similar to the later usage of for_each_alloc_enabled_rdt_resource()?
Sure. I didn't do it here because of the back-to-back container_of(), even
though the
array is defined in the same file. But the compiler will remove all of that.
>> diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
>> b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
>> index c877642e8a14..ab6e584c9d2d 100644
>> --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
>> +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
>> @@ -284,10 +284,12 @@ int update_domains(struct rdt_resource *r, int closid)
>> static int rdtgroup_parse_resource(char *resname, char *tok,
>> struct rdtgroup *rdtgrp)
>> {
>> + struct rdt_hw_resource *hw_res;
>> struct rdt_resource *r;
>> for_each_alloc_enabled_rdt_resource(r) {
>> - if (!strcmp(resname, r->name) && rdtgrp->closid < r->num_closid)
>> + hw_res = resctrl_to_arch_res(r);
>> + if (!strcmp(resname, r->name) && rdtgrp->closid <
>> hw_res->num_closid)
>> return parse_line(tok, r, rdtgrp);
>> }
> This is the usage of for_each_alloc_enabled_rdt_resource() I refer to earlier.
(if it helps, the difference in treatment is because this one is to do with the
filesystem
interface, the others were clearly arch code)
Thanks,
James
