cpumask: use mm_cpumask() wrapper: sparc

Makes code futureproof against the impending change to mm->cpu_vm_mask.

It's also a chance to use the new cpumask_ ops which take a pointer
(the older ones are deprecated, but there's no hurry for arch code).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 9 insertions, 8 deletions

diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index be1ae37e7733..132d81fb2616 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -143,7 +143,7 @@ void smp_flush_tlb_all(void)
 void smp_flush_cache_mm(struct mm_struct *mm)
 {
         if(mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask))
                         xc1((smpfunc_t) BTFIXUP_CALL(local_flush_cache_mm), (unsigned long) mm);
@@ -154,12 +154,13 @@ void smp_flush_cache_mm(struct mm_struct *mm)
 void smp_flush_tlb_mm(struct mm_struct *mm)
 {
         if(mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask)) {
                         xc1((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_mm), (unsigned long) mm);
                         if(atomic_read(&mm->mm_users) == 1 && current->active_mm == mm)
-                                mm->cpu_vm_mask = cpumask_of_cpu(smp_processor_id());
+                                cpumask_copy(mm_cpumask(mm),
+                                             cpumask_of(smp_processor_id()));
                 }
                 local_flush_tlb_mm(mm);
         }
@@ -171,7 +172,7 @@ void smp_flush_cache_range(struct vm_area_struct *vma, unsigned long start,
         struct mm_struct *mm = vma->vm_mm;
 
         if (mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask))
                         xc3((smpfunc_t) BTFIXUP_CALL(local_flush_cache_range), (unsigned long) vma, start, end);
@@ -185,7 +186,7 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
         struct mm_struct *mm = vma->vm_mm;
 
         if (mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask))
                         xc3((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_range), (unsigned long) vma, start, end);
@@ -198,7 +199,7 @@ void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
         struct mm_struct *mm = vma->vm_mm;
 
         if(mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask))
                         xc2((smpfunc_t) BTFIXUP_CALL(local_flush_cache_page), (unsigned long) vma, page);
@@ -211,7 +212,7 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
         struct mm_struct *mm = vma->vm_mm;
 
         if(mm->context != NO_CONTEXT) {
-                cpumask_t cpu_mask = mm->cpu_vm_mask;
+                cpumask_t cpu_mask = *mm_cpumask(mm);
                 cpu_clear(smp_processor_id(), cpu_mask);
                 if (!cpus_empty(cpu_mask))
                         xc2((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_page), (unsigned long) vma, page);
@@ -240,7 +241,7 @@ void smp_flush_page_to_ram(unsigned long page)
 
 void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
 {
-        cpumask_t cpu_mask = mm->cpu_vm_mask;
+        cpumask_t cpu_mask = *mm_cpumask(mm);
         cpu_clear(smp_processor_id(), cpu_mask);
         if (!cpus_empty(cpu_mask))
                 xc2((smpfunc_t) BTFIXUP_CALL(local_flush_sig_insns), (unsigned long) mm, insn_addr);