VM: unmap_page_range() can return void

return value is always the 4th ('end') argument.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 6 insertions, 9 deletions

diff --git a/mm/memory.c b/mm/memory.c
index fa2f04e0337c..1b6712a9720d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1282,10 +1282,10 @@ static inline unsigned long zap_pud_range(struct mmu_gather *tlb,
         return addr;
 }
 
-static unsigned long unmap_page_range(struct mmu_gather *tlb,
-                                struct vm_area_struct *vma,
-                                unsigned long addr, unsigned long end,
-                                struct zap_details *details)
+static void unmap_page_range(struct mmu_gather *tlb,
+                             struct vm_area_struct *vma,
+                             unsigned long addr, unsigned long end,
+                             struct zap_details *details)
 {
         pgd_t *pgd;
         unsigned long next;
@@ -1305,8 +1305,6 @@ static unsigned long unmap_page_range(struct mmu_gather *tlb,
         } while (pgd++, addr = next, addr != end);
         tlb_end_vma(tlb, vma);
         mem_cgroup_uncharge_end();
-
-        return addr;
 }
 
 /**
@@ -1371,10 +1369,9 @@ unsigned long unmap_vmas(struct mmu_gather *tlb,
                                  */
                                 if (vma->vm_file)
                                         unmap_hugepage_range(vma, start, end, NULL);
-
-                                start = end;
                         } else
-                                start = unmap_page_range(tlb, vma, start, end, details);
+                                unmap_page_range(tlb, vma, start, end, details);
+                        start = end;
                 }
         }