diff options
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl')
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/rdtgroup.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index f706e5a288b1..62d9a50c7bba 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -355,13 +355,13 @@ static int rdtgroup_cpus_show(struct kernfs_open_file *of, * from update_closid_rmid() is protected against __switch_to() because * preemption is disabled. */ -static void update_cpu_closid_rmid(void *info) +void resctrl_arch_sync_cpu_closid_rmid(void *info) { - struct rdtgroup *r = info; + struct resctrl_cpu_defaults *r = info; if (r) { this_cpu_write(pqr_state.default_closid, r->closid); - this_cpu_write(pqr_state.default_rmid, r->mon.rmid); + this_cpu_write(pqr_state.default_rmid, r->rmid); } /* @@ -376,11 +376,20 @@ static void update_cpu_closid_rmid(void *info) * Update the PGR_ASSOC MSR on all cpus in @cpu_mask, * * Per task closids/rmids must have been set up before calling this function. + * @r may be NULL. */ static void update_closid_rmid(const struct cpumask *cpu_mask, struct rdtgroup *r) { - on_each_cpu_mask(cpu_mask, update_cpu_closid_rmid, r, 1); + struct resctrl_cpu_defaults defaults, *p = NULL; + + if (r) { + defaults.closid = r->closid; + defaults.rmid = r->mon.rmid; + p = &defaults; + } + + on_each_cpu_mask(cpu_mask, resctrl_arch_sync_cpu_closid_rmid, p, 1); } static int cpus_mon_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask, |