diff -pru linux_2_4_18_orig/arch/mips/mm/tlb-r3k.c linux_2_4_18/arch/mips/mm/tlb-r3k.c
--- linux_2_4_18_orig/arch/mips/mm/tlb-r3k.c	Fri Apr 26 07:50:07 2002
+++ linux_2_4_18/arch/mips/mm/tlb-r3k.c	Mon May 27 16:36:14 2002
@@ -118,7 +118,7 @@ void local_flush_tlb_range(struct mm_str
 
 void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 {
-	if (!vma || vma->vm_mm->context != 0) {
+	if (vma && vma->vm_mm->context) {
 		unsigned long flags;
 		int oldpid, newpid, idx;
 
diff -pru linux_2_4_18_orig/arch/mips/mm/tlb-r4k.c linux_2_4_18/arch/mips/mm/tlb-r4k.c
--- linux_2_4_18_orig/arch/mips/mm/tlb-r4k.c	Fri Apr 26 07:50:07 2002
+++ linux_2_4_18/arch/mips/mm/tlb-r4k.c	Mon May 27 16:31:45 2002
@@ -140,7 +140,7 @@ void local_flush_tlb_range(struct mm_str
 
 void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 {
-	if (!vma || vma->vm_mm->context != 0) {
+	if (vma && vma->vm_mm->context) {
 		unsigned long flags;
 		int oldpid, newpid, idx;