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-rw-r--r--include/linux/mm.h4
-rw-r--r--include/linux/vmalloc.h6
-rw-r--r--mm/nommu.c8
-rw-r--r--mm/vmalloc.c16
4 files changed, 17 insertions, 17 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1961056b1af..a862a96952e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -232,8 +232,8 @@ static inline int get_page_unless_zero(struct page *page)
}
/* Support for virtually mapped pages */
-struct page *vmalloc_to_page(void *addr);
-unsigned long vmalloc_to_pfn(void *addr);
+struct page *vmalloc_to_page(const void *addr);
+unsigned long vmalloc_to_pfn(const void *addr);
static inline struct page *compound_head(struct page *page)
{
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 89338b468d0..ce8e7da0580 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -45,11 +45,11 @@ extern void *vmalloc_32_user(unsigned long size);
extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
pgprot_t prot);
-extern void vfree(void *addr);
+extern void vfree(const void *addr);
extern void *vmap(struct page **pages, unsigned int count,
unsigned long flags, pgprot_t prot);
-extern void vunmap(void *addr);
+extern void vunmap(const void *addr);
extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
unsigned long pgoff);
@@ -71,7 +71,7 @@ extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
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 struct vm_struct *remove_vm_area(const void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
struct page ***pages);
diff --git a/mm/nommu.c b/mm/nommu.c
index b989cb928a7..f3bfd015c40 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -167,7 +167,7 @@ EXPORT_SYMBOL(get_user_pages);
DEFINE_RWLOCK(vmlist_lock);
struct vm_struct *vmlist;
-void vfree(void *addr)
+void vfree(const void *addr)
{
kfree(addr);
}
@@ -183,13 +183,13 @@ void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot)
}
EXPORT_SYMBOL(__vmalloc);
-struct page * vmalloc_to_page(void *addr)
+struct page *vmalloc_to_page(const void *addr)
{
return virt_to_page(addr);
}
EXPORT_SYMBOL(vmalloc_to_page);
-unsigned long vmalloc_to_pfn(void *addr)
+unsigned long vmalloc_to_pfn(const void *addr)
{
return page_to_pfn(virt_to_page(addr));
}
@@ -267,7 +267,7 @@ void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_
}
EXPORT_SYMBOL(vmap);
-void vunmap(void *addr)
+void vunmap(const void *addr)
{
BUG();
}
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index e4c59a30835..21abac2c394 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -169,7 +169,7 @@ EXPORT_SYMBOL_GPL(map_vm_area);
/*
* Map a vmalloc()-space virtual address to the physical page.
*/
-struct page *vmalloc_to_page(void *vmalloc_addr)
+struct page *vmalloc_to_page(const void *vmalloc_addr)
{
unsigned long addr = (unsigned long) vmalloc_addr;
struct page *page = NULL;
@@ -198,7 +198,7 @@ EXPORT_SYMBOL(vmalloc_to_page);
/*
* Map a vmalloc()-space virtual address to the physical page frame number.
*/
-unsigned long vmalloc_to_pfn(void *vmalloc_addr)
+unsigned long vmalloc_to_pfn(const void *vmalloc_addr)
{
return page_to_pfn(vmalloc_to_page(vmalloc_addr));
}
@@ -306,7 +306,7 @@ struct vm_struct *get_vm_area_node(unsigned long size, unsigned long flags,
}
/* Caller must hold vmlist_lock */
-static struct vm_struct *__find_vm_area(void *addr)
+static struct vm_struct *__find_vm_area(const void *addr)
{
struct vm_struct *tmp;
@@ -319,7 +319,7 @@ static struct vm_struct *__find_vm_area(void *addr)
}
/* Caller must hold vmlist_lock */
-static struct vm_struct *__remove_vm_area(void *addr)
+static struct vm_struct *__remove_vm_area(const void *addr)
{
struct vm_struct **p, *tmp;
@@ -348,7 +348,7 @@ found:
* This function returns the found VM area, but using it is NOT safe
* on SMP machines, except for its size or flags.
*/
-struct vm_struct *remove_vm_area(void *addr)
+struct vm_struct *remove_vm_area(const void *addr)
{
struct vm_struct *v;
write_lock(&vmlist_lock);
@@ -357,7 +357,7 @@ struct vm_struct *remove_vm_area(void *addr)
return v;
}
-static void __vunmap(void *addr, int deallocate_pages)
+static void __vunmap(const void *addr, int deallocate_pages)
{
struct vm_struct *area;
@@ -408,7 +408,7 @@ static void __vunmap(void *addr, int deallocate_pages)
*
* Must not be called in interrupt context.
*/
-void vfree(void *addr)
+void vfree(const void *addr)
{
BUG_ON(in_interrupt());
__vunmap(addr, 1);
@@ -424,7 +424,7 @@ EXPORT_SYMBOL(vfree);
*
* Must not be called in interrupt context.
*/
-void vunmap(void *addr)
+void vunmap(const void *addr)
{
BUG_ON(in_interrupt());
__vunmap(addr, 0);