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-rw-r--r--include/linux/mm.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index fb19bb9..b969efb 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -13,6 +13,7 @@
#include <linux/debug_locks.h>
#include <linux/mm_types.h>
#include <linux/range.h>
+#include <linux/pfn.h>
struct mempolicy;
struct anon_vma;
@@ -106,6 +107,9 @@ extern unsigned int kobjsize(const void *objp);
#define VM_PFN_AT_MMAP 0x40000000 /* PFNMAP vma that is fully mapped at mmap time */
#define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */
+/* Bits set in the VMA until the stack is in its final location */
+#define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ)
+
#ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */
#define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
#endif
@@ -334,6 +338,7 @@ void put_page(struct page *page);
void put_pages_list(struct list_head *pages);
void split_page(struct page *page, unsigned int order);
+int split_free_page(struct page *page);
/*
* Compound pages have a destructor function. Provide a
@@ -591,7 +596,7 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
static __always_inline void *lowmem_page_address(struct page *page)
{
- return __va(page_to_pfn(page) << PAGE_SHIFT);
+ return __va(PFN_PHYS(page_to_pfn(page)));
}
#if defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL)
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