[PATCH 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()

get_vm_area_page_order() and vm_area_page_order() do not need to modify
struct vm_struct passed to them.

Constify the parameter.

Signed-off-by: Mike Rapoport (Microsoft) <[email protected]>
---
 mm/vmalloc.c | 4 ++--
 mm/vmalloc.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 6822f0fe9583..fc7993db4152 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3124,7 +3124,7 @@ EXPORT_SYMBOL(vm_map_ram);
 
 static struct vm_struct *vmlist __initdata;
 
-static inline unsigned int vm_area_page_order(struct vm_struct *vm)
+static inline unsigned int vm_area_page_order(const struct vm_struct *vm)
 {
 #ifdef CONFIG_HAVE_ARCH_HUGE_VMALLOC
 	return vm->page_order;
@@ -3133,7 +3133,7 @@ static inline unsigned int vm_area_page_order(struct vm_struct *vm)
 #endif
 }
 
-unsigned int get_vm_area_page_order(struct vm_struct *vm)
+unsigned int get_vm_area_page_order(const struct vm_struct *vm)
 {
 	return vm_area_page_order(vm);
 }
diff --git a/mm/vmalloc.h b/mm/vmalloc.h
index 8866ddcff668..211869f36509 100644
--- a/mm/vmalloc.h
+++ b/mm/vmalloc.h
@@ -12,7 +12,7 @@ void __init vmalloc_init(void);
 int __must_check vmap_pages_range_noflush(unsigned long addr, unsigned long end,
 		pgprot_t prot, struct page **pages,
 		unsigned int page_shift, gfp_t gfp_mask);
-unsigned int get_vm_area_page_order(struct vm_struct *vm);
+unsigned int get_vm_area_page_order(const struct vm_struct *vm);
 #else
 static inline void vmalloc_init(void) {}
 

-- 
2.53.0