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fs/resctrl: Split L3 dependent parts out of __mon_event_count() 

Carve out the L3 resource specific event reading code into a separate helper
to support reading event data from a new monitoring resource.

Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
This commit is contained in:
Tony Luck 2025-12-17 09:20:53 -08:00 committed by Borislav Petkov (AMD)
parent 97fec06d35
commit ad5c2ff75e
1 changed files with 12 additions and 1 deletions
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13
fs/resctrl/monitor.c
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@ -413,7 +413,7 @@ static void mbm_cntr_free(struct rdt_mon_domain *d, int cntr_id)
memset(&d->cntr_cfg[cntr_id], 0, sizeof(*d->cntr_cfg));
}
static int __mon_event_count(struct rdtgroup *rdtgrp, struct rmid_read *rr)
static int __l3_mon_event_count(struct rdtgroup *rdtgrp, struct rmid_read *rr)
{
int cpu = smp_processor_id();
u32 closid = rdtgrp->closid;
@ -494,6 +494,17 @@ static int __mon_event_count(struct rdtgroup *rdtgrp, struct rmid_read *rr)
return ret;
}
static int __mon_event_count(struct rdtgroup *rdtgrp, struct rmid_read *rr)
{
switch (rr->r->rid) {
case RDT_RESOURCE_L3:
return __l3_mon_event_count(rdtgrp, rr);
default:
rr->err = -EINVAL;
return -EINVAL;
}
}
/*
* mbm_bw_count() - Update bw count from values previously read by
* __mon_event_count().