mm: page_mkwrite change prototype to match fault

[linux-2.6-omap-h63xx.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3daa05feed9f7521983e6de482e11910947bb7c3..aeabe953ba4f6d85d4492ab6915d4d6d589cc71c 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -98,12 +98,13 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_HUGETLB     0x00400000      /* Huge TLB Page VM */
 #define VM_NONLINEAR   0x00800000      /* Is non-linear (remap_file_pages) */
 #define VM_MAPPED_COPY 0x01000000      /* T if mapped copy of data (nommu mmap) */
-#define VM_INSERTPAGE  0x02000000      /* The vma has had "vm_insert_page()" done on it. Refer note in VM_PFNMAP_AT_MMAP below */
+#define VM_INSERTPAGE  0x02000000      /* The vma has had "vm_insert_page()" done on it */
 #define VM_ALWAYSDUMP  0x04000000      /* Always include in core dumps */
 
 #define VM_CAN_NONLINEAR 0x08000000    /* Has ->fault & does nonlinear pages */
 #define VM_MIXEDMAP    0x10000000      /* Can contain "struct page" and pure PFN pages */
 #define VM_SAO         0x20000000      /* Strong Access Ordering (powerpc) */
+#define VM_PFN_AT_MMAP 0x40000000      /* PFNMAP vma that is fully mapped at mmap time */
 
 #ifndef VM_STACK_DEFAULT_FLAGS         /* arch can override this */
 #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
@@ -126,17 +127,6 @@ extern unsigned int kobjsize(const void *objp);
  */
 #define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
 
-/*
- * pfnmap vmas that are fully mapped at mmap time (not mapped on fault).
- * Used by x86 PAT to identify such PFNMAP mappings and optimize their handling.
- * Note VM_INSERTPAGE flag is overloaded here. i.e,
- * VM_INSERTPAGE && !VM_PFNMAP implies
- *     The vma has had "vm_insert_page()" done on it
- * VM_INSERTPAGE && VM_PFNMAP implies
- *     The vma is PFNMAP with full mapping at mmap time
- */
-#define VM_PFNMAP_AT_MMAP (VM_INSERTPAGE | VM_PFNMAP)
-
 /*
  * mapping from the currently active vm_flags protection bits (the
  * low four bits) to a page protection mask..
@@ -145,6 +135,7 @@ extern pgprot_t protection_map[16];
 
 #define FAULT_FLAG_WRITE       0x01    /* Fault was a write access */
 #define FAULT_FLAG_NONLINEAR   0x02    /* Fault was via a nonlinear mapping */
+#define FAULT_FLAG_MKWRITE     0x04    /* Fault was mkwrite of existing pte */
 
 /*
  * This interface is used by x86 PAT code to identify a pfn mapping that is
@@ -156,7 +147,7 @@ extern pgprot_t protection_map[16];
  */
 static inline int is_linear_pfn_mapping(struct vm_area_struct *vma)
 {
-       return ((vma->vm_flags & VM_PFNMAP_AT_MMAP) == VM_PFNMAP_AT_MMAP);
+       return (vma->vm_flags & VM_PFN_AT_MMAP);
 }
 
 static inline int is_pfn_mapping(struct vm_area_struct *vma)
@@ -197,7 +188,7 @@ struct vm_operations_struct {
 
        /* notification that a previously read-only page is about to become
         * writable, if an error is returned it will cause a SIGBUS */
-       int (*page_mkwrite)(struct vm_area_struct *vma, struct page *page);
+       int (*page_mkwrite)(struct vm_area_struct *vma, struct vm_fault *vmf);
 
        /* called by access_process_vm when get_user_pages() fails, typically
         * for use by special VMAs that can switch between memory and hardware
@@ -844,6 +835,7 @@ int __set_page_dirty_nobuffers(struct page *page);
 int __set_page_dirty_no_writeback(struct page *page);
 int redirty_page_for_writepage(struct writeback_control *wbc,
                                struct page *page);
+void account_page_dirtied(struct page *page, struct address_space *mapping);
 int set_page_dirty(struct page *page);
 int set_page_dirty_lock(struct page *page);
 int clear_page_dirty_for_io(struct page *page);