vm: simplify unmap_vmas() calling convention

None of the callers want to pass in 'zap_details', and it doesn't even
make sense for the case of actually unmapping vma's.  So remove the
argument, and clean up the interface.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 9 deletions

diff --git a/mm/memory.c b/mm/memory.c
index 6105f475fa86..f7b6c9859796 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1340,7 +1340,6 @@ static void unmap_single_vma(struct mmu_gather *tlb,
  * @start_addr: virtual address at which to start unmapping
  * @end_addr: virtual address at which to end unmapping
  * @nr_accounted: Place number of unmapped pages in vm-accountable vma's here
- * @details: details of nonlinear truncation or shared cache invalidation
  *
  * Unmap all pages in the vma list.
  *
@@ -1355,15 +1354,13 @@ static void unmap_single_vma(struct mmu_gather *tlb,
  */
 void unmap_vmas(struct mmu_gather *tlb,
                 struct vm_area_struct *vma, unsigned long start_addr,
-                unsigned long end_addr, unsigned long *nr_accounted,
-                struct zap_details *details)
+                unsigned long end_addr, unsigned long *nr_accounted)
 {
         struct mm_struct *mm = vma->vm_mm;
 
         mmu_notifier_invalidate_range_start(mm, start_addr, end_addr);
         for ( ; vma && vma->vm_start < end_addr; vma = vma->vm_next)
-                unmap_single_vma(tlb, vma, start_addr, end_addr, nr_accounted,
-                                 details);
+                unmap_single_vma(tlb, vma, start_addr, end_addr, nr_accounted, NULL);
         mmu_notifier_invalidate_range_end(mm, start_addr, end_addr);
 }
 
@@ -1376,19 +1373,22 @@ void unmap_vmas(struct mmu_gather *tlb,
  *
  * Caller must protect the VMA list
  */
-void zap_page_range(struct vm_area_struct *vma, unsigned long address,
+void zap_page_range(struct vm_area_struct *vma, unsigned long start,
                 unsigned long size, struct zap_details *details)
 {
         struct mm_struct *mm = vma->vm_mm;
         struct mmu_gather tlb;
-        unsigned long end = address + size;
+        unsigned long end = start + size;
         unsigned long nr_accounted = 0;
 
         lru_add_drain();
         tlb_gather_mmu(&tlb, mm, 0);
         update_hiwater_rss(mm);
-        unmap_vmas(&tlb, vma, address, end, &nr_accounted, details);
-        tlb_finish_mmu(&tlb, address, end);
+        mmu_notifier_invalidate_range_start(mm, start, end);
+        for ( ; vma && vma->vm_start < end; vma = vma->vm_next)
+                unmap_single_vma(&tlb, vma, start, end, &nr_accounted, details);
+        mmu_notifier_invalidate_range_end(mm, start, end);
+        tlb_finish_mmu(&tlb, start, end);
 }
 
 /**