1 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index dcdfc2bda922..6071e911c7f4 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -32,7 +32,7 @@ struct vm_struct {
         struct page             **pages;
         unsigned int            nr_pages;
         phys_addr_t             phys_addr;
-        void                    *caller;
+        const void              *caller;
 };
 
 /*
@@ -62,7 +62,7 @@ extern void *vmalloc_32_user(unsigned long size);
 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
                         unsigned long start, unsigned long end, gfp_t gfp_mask,
-                        pgprot_t prot, int node, void *caller);
+                        pgprot_t prot, int node, const void *caller);
 extern void vfree(const void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
@@ -85,14 +85,15 @@ static inline size_t get_vm_area_size(const struct vm_struct *area)
 
 extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
 extern struct vm_struct *get_vm_area_caller(unsigned long size,
-                                        unsigned long flags, void *caller);
+                                        unsigned long flags, const void *caller);
 extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
                                         unsigned long start, unsigned long end);
 extern struct vm_struct *__get_vm_area_caller(unsigned long size,
                                         unsigned long flags,
                                         unsigned long start, unsigned long end,
-                                        void *caller);
+                                        const void *caller);
 extern struct vm_struct *remove_vm_area(const void *addr);
+extern struct vm_struct *find_vm_area(const void *addr);
 
 extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
                         struct page ***pages);