[IA64] make mmu_context.h and tlb.c 80-column friendly

wrap_mmu_context(), delayed_tlb_flush(), get_mmu_context() all
have an extra { } block which cause one extra indentation.
get_mmu_context() is particularly bad with 5 indentations to
the most inner "if".  It finally gets on my nerve that I can't
keep the code within 80 columns.  Remove the extra { } block
and while I'm at it, reformat all the comments to 80-column
friendly.  No functional change at all with this patch.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 18 insertions, 15 deletions

diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 39628fca274c..41105d454423 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -29,7 +29,7 @@
 
 static struct {
         unsigned long mask;     /* mask of supported purge page-sizes */
-        unsigned long max_bits; /* log2() of largest supported purge page-size */
+        unsigned long max_bits; /* log2 of largest supported purge page-size */
 } purge;
 
 struct ia64_ctx ia64_ctx = {
@@ -58,7 +58,7 @@ mmu_context_init (void)
 void
 wrap_mmu_context (struct mm_struct *mm)
 {
-        int i;
+        int i, cpu;
         unsigned long flush_bit;
 
         for (i=0; i <= ia64_ctx.max_ctx / BITS_PER_LONG; i++) {
@@ -72,20 +72,21 @@ wrap_mmu_context (struct mm_struct *mm)
         ia64_ctx.limit = find_next_bit(ia64_ctx.bitmap,
                                 ia64_ctx.max_ctx, ia64_ctx.next);
 
-        /* can't call flush_tlb_all() here because of race condition with O(1) scheduler [EF] */
-        {
-                int cpu = get_cpu(); /* prevent preemption/migration */
-                for_each_online_cpu(i) {
-                        if (i != cpu)
-                                per_cpu(ia64_need_tlb_flush, i) = 1;
-                }
-                put_cpu();
-        }
+        /*
+         * can't call flush_tlb_all() here because of race condition
+         * with O(1) scheduler [EF]
+         */
+        cpu = get_cpu(); /* prevent preemption/migration */
+        for_each_online_cpu(i)
+                if (i != cpu)
+                        per_cpu(ia64_need_tlb_flush, i) = 1;
+        put_cpu();
         local_flush_tlb_all();
 }
 
 void
-ia64_global_tlb_purge (struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long nbits)
+ia64_global_tlb_purge (struct mm_struct *mm, unsigned long start,
+                       unsigned long end, unsigned long nbits)
 {
         static DEFINE_SPINLOCK(ptcg_lock);
 
@@ -133,7 +134,8 @@ local_flush_tlb_all (void)
 }
 
 void
-flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end)
+flush_tlb_range (struct vm_area_struct *vma, unsigned long start,
+                 unsigned long end)
 {
         struct mm_struct *mm = vma->vm_mm;
         unsigned long size = end - start;
@@ -147,7 +149,8 @@ flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long
 #endif
 
         nbits = ia64_fls(size + 0xfff);
-        while (unlikely (((1UL << nbits) & purge.mask) == 0) && (nbits < purge.max_bits))
+        while (unlikely (((1UL << nbits) & purge.mask) == 0) &&
+                        (nbits < purge.max_bits))
                 ++nbits;
         if (nbits > purge.max_bits)
                 nbits = purge.max_bits;
@@ -189,5 +192,5 @@ ia64_tlb_init (void)
         local_cpu_data->ptce_stride[0] = ptce_info.stride[0];
         local_cpu_data->ptce_stride[1] = ptce_info.stride[1];
 
-        local_flush_tlb_all();          /* nuke left overs from bootstrapping... */
+        local_flush_tlb_all();  /* nuke left overs from bootstrapping... */
 }