[PATCH] Oracle startup split_vma fix

Hugh Dickins
2002-10-01T15:27:13Z

Alessandro Suardi and Zlatko Calusic independently reported that
Oracle cannot start on recent 2.5: excellent research by Zlatko
quickly pointed to vm_pgoff buglet in the new split_vma.

Patch below against 2.5.40 or 2.5.40-mm1: please apply.

--- 2.5.40/mm/mmap.c Tue Oct 1 15:33:04 2002
+++ linux/mm/mmap.c Tue Oct 1 15:53:06 2002
@@ -1058,7 +1058,7 @@
if (new_below) {
new->vm_end = addr;
vma->vm_start = addr;
- vma->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
+ vma->vm_pgoff += ((addr - new->vm_start) >> PAGE_SHIFT);
} else {
vma->vm_end = addr;
new->vm_start = addr;