diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt
index debf6813934af05e878863c4a8c53bbf6ae64e62..866b76139420b2b22d25255b136f378b6186d52c 100644
--- a/Documentation/cachetlb.txt
+++ b/Documentation/cachetlb.txt
@@ -253,7 +253,7 @@ Here are the routines, one by one:
 
 	The first of these two routines is invoked after map_vm_area()
 	has installed the page table entries.  The second is invoked
-	before unmap_vm_area() deletes the page table entries.
+	before unmap_kernel_range() deletes the page table entries.
 
 There exists another whole class of cpu cache issues which currently
 require a whole different set of interfaces to handle properly.
diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index c831815c31f0e5a1c572e19a5a3c706721ee8b9a..9eddf37303d722ff2121fa5c77690b997cb7b2bc 100644
--- a/arch/powerpc/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
@@ -301,7 +301,8 @@ void im_free(void * addr)
 	for (p = &imlist ; (tmp = *p) ; p = &tmp->next) {
 		if (tmp->addr == addr) {
 			*p = tmp->next;
-			unmap_vm_area(tmp);
+			unmap_kernel_range((unsigned long)tmp->addr,
+					   tmp->size);
 			kfree(tmp);
 			mutex_unlock(&imlist_mutex);
 			return;
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index ad6e135bf212ac1b77c87ac1ed8cd8b704b93e28..fa5c828d3876c9f421de7aed75611e6b83229d26 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -240,7 +240,6 @@ int __ioremap_explicit(phys_addr_t pa, unsigned long ea,
 /*  
  * Unmap an IO region and remove it from imalloc'd list.
  * Access to IO memory should be serialized by driver.
- * This code is modeled after vmalloc code - unmap_vm_area()
  *
  * XXX	what about calls before mem_init_done (ie python_countermeasures())
  */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 4b7ee83787c1fb18e24720743262910d0b464b58..132b260aef1e5afeee3529eed8d282a9342e6bbe 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -65,9 +65,10 @@ extern struct vm_struct *get_vm_area_node(unsigned long size,
 					  unsigned long flags, int node,
 					  gfp_t gfp_mask);
 extern struct vm_struct *remove_vm_area(void *addr);
+
 extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
 			struct page ***pages);
-extern void unmap_vm_area(struct vm_struct *area);
+extern void unmap_kernel_range(unsigned long addr, unsigned long size);
 
 /*
  *	Internals.  Dont't use..
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d3a9c5368257afd6243c81c26881b25f67ff65f4..ddf87145cc49e0dc3d4e6e74f157b6a5e2e08f5c 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -68,12 +68,12 @@ static inline void vunmap_pud_range(pgd_t *pgd, unsigned long addr,
 	} while (pud++, addr = next, addr != end);
 }
 
-void unmap_vm_area(struct vm_struct *area)
+void unmap_kernel_range(unsigned long addr, unsigned long size)
 {
 	pgd_t *pgd;
 	unsigned long next;
-	unsigned long addr = (unsigned long) area->addr;
-	unsigned long end = addr + area->size;
+	unsigned long start = addr;
+	unsigned long end = addr + size;
 
 	BUG_ON(addr >= end);
 	pgd = pgd_offset_k(addr);
@@ -84,7 +84,12 @@ void unmap_vm_area(struct vm_struct *area)
 			continue;
 		vunmap_pud_range(pgd, addr, next);
 	} while (pgd++, addr = next, addr != end);
-	flush_tlb_kernel_range((unsigned long) area->addr, end);
+	flush_tlb_kernel_range(start, end);
+}
+
+static void unmap_vm_area(struct vm_struct *area)
+{
+	unmap_kernel_range((unsigned long)area->addr, area->size);
 }
 
 static int vmap_pte_range(pmd_t *pmd, unsigned long addr,