Merge commit 'v2.6.36-rc3' into x86/memblock

[firefly-linux-kernel-4.4.55.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 993e85f0afcbcaafd686c4104189490493964d3a..c0cceded7683f32cfeb9e87acf96bbd51dad7129 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -78,7 +78,11 @@ extern unsigned int kobjsize(const void *objp);
 #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.. */
 
@@ -815,6 +819,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
 }
 
 extern void truncate_pagecache(struct inode *inode, loff_t old, loff_t new);
+extern void truncate_setsize(struct inode *inode, loff_t newsize);
 extern int vmtruncate(struct inode *inode, loff_t offset);
 extern int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end);
 
@@ -1331,8 +1336,10 @@ unsigned long ra_submit(struct file_ra_state *ra,
 
 /* Do stack extension */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
-#ifdef CONFIG_IA64
+#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);
@@ -1358,7 +1365,15 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma)
        return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 }
 
+#ifdef CONFIG_MMU
 pgprot_t vm_get_page_prot(unsigned long vm_flags);
+#else
+static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
+{
+       return __pgprot(0);
+}
+#endif
+
 struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
 int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
                        unsigned long pfn, unsigned long size, pgprot_t);
@@ -1467,6 +1482,14 @@ extern int sysctl_memory_failure_recovery;
 extern void shake_page(struct page *p, int access);
 extern atomic_long_t mce_bad_pages;
 extern int soft_offline_page(struct page *page, int flags);
+#ifdef CONFIG_MEMORY_FAILURE
+int is_hwpoison_address(unsigned long addr);
+#else
+static inline int is_hwpoison_address(unsigned long addr)
+{
+       return 0;
+}
+#endif
 
 extern void dump_page(struct page *page);