mm: remove useless vma parameter to offset_il_node

While reading the code I found that offset_il_node() has a vm_area_struct
pointer parameter which is unused.

Link: http://lkml.kernel.org/r/1502899755-23146-1-git-send-email-ldufour@linux.vnet.ibm.com
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 0fa665d..1f5db48 100644 (file)
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1745,8 +1745,7 @@ unsigned int mempolicy_slab_node(void)
  * node in pol->v.nodes (starting from n=0), wrapping around if n exceeds the
  * number of present nodes.
  */
-static unsigned offset_il_node(struct mempolicy *pol,
-                              struct vm_area_struct *vma, unsigned long n)
+static unsigned offset_il_node(struct mempolicy *pol, unsigned long n)
 {
        unsigned nnodes = nodes_weight(pol->v.nodes);
        unsigned target;
@@ -1779,7 +1778,7 @@ static inline unsigned interleave_nid(struct mempolicy *pol,
                BUG_ON(shift < PAGE_SHIFT);
                off = vma->vm_pgoff >> (shift - PAGE_SHIFT);
                off += (addr - vma->vm_start) >> shift;
-               return offset_il_node(pol, vma, off);
+               return offset_il_node(pol, off);
        } else
                return interleave_nodes(pol);
 }
@@ -2247,7 +2246,7 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 
                pgoff = vma->vm_pgoff;
                pgoff += (addr - vma->vm_start) >> PAGE_SHIFT;
-               polnid = offset_il_node(pol, vma, pgoff);
+               polnid = offset_il_node(pol, pgoff);
                break;
 
        case MPOL_PREFERRED: