mm: fix comments for mmap_init()

mmap_init() is no longer associated with VMA slab.  So fix it.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: seokhoon.yoon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
diff --git a/mm/mmap.c b/mm/mmap.c
index 1cd7001..46059b7 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -3446,7 +3446,7 @@ void mm_drop_all_locks(struct mm_struct *mm)
 }
 
 /*
- * initialise the VMA slab
+ * initialise the percpu counter for VM
  */
 void __init mmap_init(void)
 {
diff --git a/mm/nommu.c b/mm/nommu.c
index 62600ba..215c622 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -517,7 +517,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 }
 
 /*
- * initialise the VMA and region record slabs
+ * initialise the percpu counter for VM and region record slabs
  */
 void __init mmap_init(void)
 {