Commit 0734ded1 authored by Vikas Shivappa's avatar Vikas Shivappa Committed by Thomas Gleixner

x86/intel_rdt: Change closid type from int to u32

OS associates a CLOSid(Class of service id) to a task by writing the
high 32 bits of per CPU IA32_PQR_ASSOC MSR when a task is scheduled in.
CPUID.(EAX=10H, ECX=1):EDX[15:0] enumerates the max CLOSID supported and
it is zero indexed. Hence change the type to u32 from int.
Signed-off-by: default avatarVikas Shivappa <vikas.shivappa@linux.intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: peterz@infradead.org
Cc: eranian@google.com
Cc: vikas.shivappa@intel.com
Cc: ak@linux.intel.com
Cc: davidcc@google.com
Cc: reinette.chatre@intel.com
Link: http://lkml.kernel.org/r/1501017287-28083-15-git-send-email-vikas.shivappa@linux.intel.com
parent c7d9aac6
......@@ -46,7 +46,7 @@ static inline void intel_rdt_sched_in(void)
{
if (static_branch_likely(&rdt_alloc_enable_key)) {
struct intel_pqr_state *state = this_cpu_ptr(&pqr_state);
int closid;
u32 closid;
/*
* If this task has a closid assigned, use it.
......
......@@ -72,7 +72,7 @@ struct mongroup {
struct rdtgroup {
struct kernfs_node *kn;
struct list_head rdtgroup_list;
int closid;
u32 closid;
struct cpumask cpu_mask;
int flags;
atomic_t waitcount;
......
......@@ -77,7 +77,7 @@ static void closid_init(void)
static int closid_alloc(void)
{
int closid = ffs(closid_free_map);
u32 closid = ffs(closid_free_map);
if (closid == 0)
return -ENOSPC;
......
......@@ -899,7 +899,7 @@ struct task_struct {
struct list_head cg_list;
#endif
#ifdef CONFIG_INTEL_RDT
int closid;
u32 closid;
#endif
#ifdef CONFIG_FUTEX
struct robust_list_head __user *robust_list;
......
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