cpumask: Use mm_cpumask() wrapper instead of cpu_vm_mask
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>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 39ac22b..7af7297 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -132,11 +132,11 @@
pid = mm->context.id;
if (unlikely(pid == MMU_NO_CONTEXT))
goto no_context;
- cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask)) {
+ if (!cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) {
struct tlb_flush_param p = { .pid = pid };
- smp_call_function_mask(cpu_mask, do_flush_tlb_mm_ipi, &p, 1);
+ /* Ignores smp_processor_id() even if set. */
+ smp_call_function_many(mm_cpumask(mm),
+ do_flush_tlb_mm_ipi, &p, 1);
}
_tlbil_pid(pid);
no_context:
@@ -146,16 +146,15 @@
void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
- cpumask_t cpu_mask;
+ struct cpumask *cpu_mask;
unsigned int pid;
preempt_disable();
pid = vma ? vma->vm_mm->context.id : 0;
if (unlikely(pid == MMU_NO_CONTEXT))
goto bail;
- cpu_mask = vma->vm_mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
- if (!cpus_empty(cpu_mask)) {
+ cpu_mask = mm_cpumask(vma->vm_mm);
+ if (!cpumask_equal(cpu_mask, cpumask_of(smp_processor_id()))) {
/* If broadcast tlbivax is supported, use it */
if (mmu_has_feature(MMU_FTR_USE_TLBIVAX_BCAST)) {
int lock = mmu_has_feature(MMU_FTR_LOCK_BCAST_INVAL);
@@ -167,7 +166,8 @@
goto bail;
} else {
struct tlb_flush_param p = { .pid = pid, .addr = vmaddr };
- smp_call_function_mask(cpu_mask,
+ /* Ignores smp_processor_id() even if set in cpu_mask */
+ smp_call_function_many(cpu_mask,
do_flush_tlb_page_ipi, &p, 1);
}
}