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-rw-r--r--include/linux/mm.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e173cd297d88..d2948af126ca 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1518,15 +1518,17 @@ unsigned long ra_submit(struct file_ra_state *ra,
struct address_space *mapping,
struct file *filp);
-/* Do stack extension */
+/* Generic expand stack which grows the stack according to GROWS{UP,DOWN} */
extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
+
+/* CONFIG_STACK_GROWSUP still needs to to grow downwards at some places */
+extern int expand_downwards(struct vm_area_struct *vma,
+ unsigned long address);
#if VM_GROWSUP
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);
/* Look up the first VMA which satisfies addr < vm_end, NULL if none. */
extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long addr);