arc: drop _PAGE_FILE and pte_file()-related helpers

We've replaced remap_file_pages(2) implementation with emulation.  Nobody
creates non-linear mapping anymore.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index 6b0b7f7ef783cec0ecbd0bbd53e084be2011ae82..bdc8ccaf390d5ad9142628209a0739d6c43461ef 100644 (file)
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -61,7 +61,6 @@
 #define _PAGE_WRITE         (1<<4)     /* Page has user write perm (H) */
 #define _PAGE_READ          (1<<5)     /* Page has user read perm (H) */
 #define _PAGE_MODIFIED      (1<<6)     /* Page modified (dirty) (S) */
-#define _PAGE_FILE          (1<<7)     /* page cache/ swap (S) */
 #define _PAGE_GLOBAL        (1<<8)     /* Page is global (H) */
 #define _PAGE_PRESENT       (1<<10)    /* TLB entry is valid (H) */
 
@@ -73,7 +72,6 @@
 #define _PAGE_READ          (1<<3)     /* Page has user read perm (H) */
 #define _PAGE_ACCESSED      (1<<4)     /* Page is accessed (S) */
 #define _PAGE_MODIFIED      (1<<5)     /* Page modified (dirty) (S) */
-#define _PAGE_FILE          (1<<6)     /* page cache/ swap (S) */
 #define _PAGE_GLOBAL        (1<<8)     /* Page is global (H) */
 #define _PAGE_PRESENT       (1<<9)     /* TLB entry is valid (H) */
 #define _PAGE_SHARED_CODE   (1<<11)    /* Shared Code page with cmn vaddr
@@ -268,15 +266,6 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
        pte;                                                            \
 })
 
-/* TBD: Non linear mapping stuff */
-static inline int pte_file(pte_t pte)
-{
-       return pte_val(pte) & _PAGE_FILE;
-}
-
-#define PTE_FILE_MAX_BITS      30
-#define pgoff_to_pte(x)         __pte(x)
-#define pte_to_pgoff(x)                (pte_val(x) >> 2)
 #define pte_pfn(pte)           (pte_val(pte) >> PAGE_SHIFT)
 #define pfn_pte(pfn, prot)     (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
 #define __pte_index(addr)      (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
@@ -364,7 +353,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
 
 /* Encode swap {type,off} tuple into PTE
  * We reserve 13 bits for 5-bit @type, keeping bits 12-5 zero, ensuring that
- * both PAGE_FILE and PAGE_PRESENT are zero in a PTE holding swap "identifier"
+ * PAGE_PRESENT is zero in a PTE holding swap "identifier"
  */
 #define __swp_entry(type, off) ((swp_entry_t) { \
                                        ((type) & 0x1f) | ((off) << 13) })