[PATCH] 6: 2.5.29-memory

Trivial patch; removes cruft that got left over from the TLB shootdown
changes.  "dir" is never used in zap_page_range

mm/memory.c

@@ -408,11 +408,8 @@ void zap_page_range(struct vm_area_struct *vma, unsigned long address, unsigned
 {
 	struct mm_struct *mm = vma->vm_mm;
 	mmu_gather_t *tlb;
-	pgd_t * dir;
 	unsigned long start = address, end = address + size;
 
-	dir = pgd_offset(mm, address);
-
 	/*
 	 * This is a long-lived spinlock. That's fine.
 	 * There's no contention, because the page table