xen: convert to cpumask_var_t and new cpumask primitives.

Simple change, and eventual space saving when NR_CPUS >> nr_cpu_ids.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 2cce362..b3a9586 100644 (file)
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -33,7 +33,7 @@
 #include "xen-ops.h"
 #include "mmu.h"
 
-cpumask_t xen_cpu_initialized_map;
+cpumask_var_t xen_cpu_initialized_map;
 
 static DEFINE_PER_CPU(int, resched_irq);
 static DEFINE_PER_CPU(int, callfunc_irq);
@@ -192,7 +192,10 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
        if (xen_smp_intr_init(0))
                BUG();
 
-       xen_cpu_initialized_map = cpumask_of_cpu(0);
+       if (!alloc_cpumask_var(&xen_cpu_initialized_map, GFP_KERNEL))
+               panic("could not allocate xen_cpu_initialized_map\n");
+
+       cpumask_copy(xen_cpu_initialized_map, cpumask_of(0));
 
        /* Restrict the possible_map according to max_cpus. */
        while ((num_possible_cpus() > 1) && (num_possible_cpus() > max_cpus)) {
@@ -221,7 +224,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
        struct vcpu_guest_context *ctxt;
        struct desc_struct *gdt;
 
-       if (cpu_test_and_set(cpu, xen_cpu_initialized_map))
+       if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))
                return 0;
 
        ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);

diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index 2a234db..212ffe0 100644 (file)
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -35,7 +35,8 @@ void xen_post_suspend(int suspend_cancelled)
                        pfn_to_mfn(xen_start_info->console.domU.mfn);
        } else {
 #ifdef CONFIG_SMP
-               xen_cpu_initialized_map = cpu_online_map;
+               BUG_ON(xen_cpu_initialized_map == NULL);
+               cpumask_copy(xen_cpu_initialized_map, cpu_online_mask);
 #endif
                xen_vcpu_restore();
        }

diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 9e1afae..c1f8faf 100644 (file)
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -58,7 +58,7 @@ void __init xen_init_spinlocks(void);
 __cpuinit void xen_init_lock_cpu(int cpu);
 void xen_uninit_lock_cpu(int cpu);
 
-extern cpumask_t xen_cpu_initialized_map;
+extern cpumask_var_t xen_cpu_initialized_map;
 #else
 static inline void xen_smp_init(void) {}
 #endif