X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=mm%2Fmremap.c;h=bea6e98bf3e1e7d16376b50e88954809a4987176;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=d516bf7adb5a4edbb968f7a6ea035bd7781dea11;hpb=134734d875a0a48d994ef20b9905209b4b8b6f75;p=linux-2.6.git

diff --git a/mm/mremap.c b/mm/mremap.c
index d516bf7ad..bea6e98bf 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -100,18 +100,19 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
  	new_pte = pte_offset_map_nested(new_pmd, new_addr);
 	new_ptl = pte_lockptr(mm, new_pmd);
 	if (new_ptl != old_ptl)
-		spin_lock(new_ptl);
+		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+	arch_enter_lazy_mmu_mode();
 
 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,
 				   new_pte++, new_addr += PAGE_SIZE) {
 		if (pte_none(*old_pte))
 			continue;
 		pte = ptep_clear_flush(vma, old_addr, old_pte);
-		/* ZERO_PAGE can be dependant on virtual addr */
 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
 		set_pte_at(mm, new_addr, new_pte, pte);
 	}
 
+	arch_leave_lazy_mmu_mode();
 	if (new_ptl != old_ptl)
 		spin_unlock(new_ptl);
 	pte_unmap_nested(new_pte - 1);
@@ -393,8 +394,8 @@ unsigned long do_mremap(unsigned long addr,
 			if (vma->vm_flags & VM_MAYSHARE)
 				map_flags |= MAP_SHARED;
 
-			new_addr = get_unmapped_area(vma->vm_file, 0, new_len,
-						vma->vm_pgoff, map_flags);
+			new_addr = get_unmapped_area_prot(vma->vm_file, 0, new_len,
+				vma->vm_pgoff, map_flags, vma->vm_flags & VM_EXEC);
 			ret = new_addr;
 			if (new_addr & ~PAGE_MASK)
 				goto out;