[MIPS] Kill num_online_cpus() loops.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 25 insertions, 16 deletions

diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index bd128fab4b36..3191afa29ad8 100644
--- a/arch/mips/kernel/gdb-stub.c
+++ b/arch/mips/kernel/gdb-stub.c
@@ -769,7 +769,7 @@ void handle_exception(struct gdb_regs *regs)
         /*
          * acquire the CPU spinlocks
          */
-        for (i = num_online_cpus()-1; i >= 0; i--)
+        for_each_online_cpu(i)
                 if (__raw_spin_trylock(&kgdb_cpulock[i]) == 0)
                         panic("kgdb: couldn't get cpulock %d\n", i);
 
@@ -1044,7 +1044,7 @@ finish_kgdb:
 
 exit_kgdb_exception:
         /* release locks so other CPUs can go */
-        for (i = num_online_cpus()-1; i >= 0; i--)
+        for_each_online_cpu(i)
                 __raw_spin_unlock(&kgdb_cpulock[i]);
         spin_unlock(&kgdb_lock);
 
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 481ba5355dcb..5ca3809a1b45 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -375,10 +375,13 @@ void flush_tlb_mm(struct mm_struct *mm)
         if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
                 smp_on_other_tlbs(flush_tlb_mm_ipi, (void *)mm);
         } else {
-                int i;
-                for (i = 0; i < num_online_cpus(); i++)
-                        if (smp_processor_id() != i)
-                                cpu_context(i, mm) = 0;
+                cpumask_t mask = cpu_online_map;
+                unsigned int cpu;
+
+                cpu_clear(smp_processor_id(), mask);
+                for_each_online_cpu(cpu)
+                        if (cpu_context(cpu, mm))
+                                cpu_context(cpu, mm) = 0;
         }
         local_flush_tlb_mm(mm);
 
@@ -411,10 +414,13 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned l
                 fd.addr2 = end;
                 smp_on_other_tlbs(flush_tlb_range_ipi, (void *)&fd);
         } else {
-                int i;
-                for (i = 0; i < num_online_cpus(); i++)
-                        if (smp_processor_id() != i)
-                                cpu_context(i, mm) = 0;
+                cpumask_t mask = cpu_online_map;
+                unsigned int cpu;
+
+                cpu_clear(smp_processor_id(), mask);
+                for_each_online_cpu(cpu)
+                        if (cpu_context(cpu, mm))
+                                cpu_context(cpu, mm) = 0;
         }
         local_flush_tlb_range(vma, start, end);
         preempt_enable();
@@ -453,10 +459,13 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
                 fd.addr1 = page;
                 smp_on_other_tlbs(flush_tlb_page_ipi, (void *)&fd);
         } else {
-                int i;
-                for (i = 0; i < num_online_cpus(); i++)
-                        if (smp_processor_id() != i)
-                                cpu_context(i, vma->vm_mm) = 0;
+                cpumask_t mask = cpu_online_map;
+                unsigned int cpu;
+
+                cpu_clear(smp_processor_id(), mask);
+                for_each_online_cpu(cpu)
+                        if (cpu_context(cpu, vma->vm_mm))
+                                cpu_context(cpu, vma->vm_mm) = 0;
         }
         local_flush_tlb_page(vma, page);
         preempt_enable();
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 4d91e2f455c0..a8c1a698d588 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -1264,7 +1264,7 @@ void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
                         if (cpu_has_vtag_icache)
                                 flush_icache_all();
                         /* Traverse all online CPUs (hack requires contigous range) */
-                        for (i = 0; i < num_online_cpus(); i++) {
+                        for_each_online_cpu(i) {
                                 /*
                                  * We don't need to worry about our own CPU, nor those of
                                  * CPUs who don't share our TLB.
@@ -1293,7 +1293,7 @@ void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
         /*
          * SMTC shares the TLB within VPEs and possibly across all VPEs.
          */
-        for (i = 0; i < num_online_cpus(); i++) {
+        for_each_online_cpu(i) {
                 if ((smtc_status & SMTC_TLB_SHARED) ||
                     (cpu_data[i].vpe_id == cpu_data[cpu].vpe_id))
                         cpu_context(i, mm) = asid_cache(i) = asid;