fs/exec: Use vma_next() instead of linked list

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/fs/exec.c b/fs/exec.c
index 1dd658ac3390ab675eb2a2c8f1e050a63dee02d3..95b317e0ceca478e9a190d039c40a3e058ce3d23 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -713,7 +713,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                 * when the old and new regions overlap clear from new_end.
                 */
                free_pgd_range(&tlb, new_end, old_end, new_end,
-                       vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+                       vma_next(mm, vma) ? vma_next(mm, vma)->vm_start : USER_PGTABLES_CEILING);
        } else {
                /*
                 * otherwise, clean from old_start; this is done to not touch
@@ -722,7 +722,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                 * for the others its just a little faster.
                 */
                free_pgd_range(&tlb, old_start, old_end, new_end,
-                       vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+                       vma_next(mm, vma) ? vma_next(mm, vma)->vm_start : USER_PGTABLES_CEILING);
        }
        tlb_finish_mmu(&tlb, old_start, old_end);