--- include/linux/mm.h

+++ include/linux/mm.h

@@ -77,11 +77,7 @@ extern unsigned int kobjsize(const void

#define VM_MAYSHARE 0x00000080

#define VM_GROWSDOWN 0x00000100 /* general info on the segment */

-#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)

#define VM_GROWSUP 0x00000200

-#else

-#define VM_GROWSUP 0x00000000

-#endif

#define VM_PFNMAP 0x00000400 /* Page-ranges managed without "struct page", just pure PFN */

#define VM_DENYWRITE 0x00000800 /* ETXTBSY on write attempts.. */

@@ -842,12 +838,6 @@ int set_page_dirty(struct page *page);

int set_page_dirty_lock(struct page *page);

int clear_page_dirty_for_io(struct page *page);

-/* Is the vma a continuation of the stack vma above it? */

-static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)

-{

- return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);

-}

-

extern unsigned long move_page_tables(struct vm_area_struct *vma,

unsigned long old_addr, struct vm_area_struct *new_vma,

unsigned long new_addr, unsigned long len);

@@ -1206,10 +1196,8 @@ unsigned long ra_submit(struct file_ra_s

/* Do stack extension */

extern int expand_stack(struct vm_area_struct *vma, unsigned long address);

-#if VM_GROWSUP

+#ifdef CONFIG_IA64

extern int expand_upwards(struct vm_area_struct *vma, unsigned long address);

-#else

- #define expand_upwards(vma, address) do { } while (0)

#endif

extern int expand_stack_downwards(struct vm_area_struct *vma,

unsigned long address);