patch-2.4.4 linux/mm/mremap.c

• Lines: 16
• Date: Fri Apr 13 15:17:21 2001
• Orig file: v2.4.3/linux/mm/mremap.c
• Orig date: Mon Mar 19 17:17:43 2001

diff -u --recursive --new-file v2.4.3/linux/mm/mremap.c linux/mm/mremap.c
@@ -276,8 +276,13 @@
 	ret = -ENOMEM;
 	if (flags & MREMAP_MAYMOVE) {
 		if (!(flags & MREMAP_FIXED)) {
-			new_addr = get_unmapped_area(0, new_len);
-			if (!new_addr)
+			unsigned long map_flags = 0;
+			if (vma->vm_flags & VM_SHARED)
+				map_flags |= MAP_SHARED;
+
+			new_addr = get_unmapped_area(vma->vm_file, 0, new_len, vma->vm_pgoff, map_flags);
+			ret = new_addr;
+			if (new_addr & ~PAGE_MASK)
 				goto out;
 		}
 		ret = move_vma(vma, addr, old_len, new_len, new_addr);