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nios2: drop _PAGE_FILE and pte_file()-related helpers

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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>
Cc: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2015-02-10 14:10:56 -08:00 committed by Linus Torvalds
parent 6bf63a8ccb
commit 3ee802ead2
2 changed files with 1 additions and 10 deletions
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1
arch/nios2/include/asm/pgtable-bits.h
View File

@ -30,6 +30,5 @@
#define _PAGE_PRESENT (1<<25) /* PTE contains a translation */
#define _PAGE_ACCESSED (1<<26) /* page referenced */
#define _PAGE_DIRTY (1<<27) /* dirty page */
#define _PAGE_FILE (1<<28) /* PTE used for file mapping or swap */
#endif /* _ASM_NIOS2_PGTABLE_BITS_H */

10
arch/nios2/include/asm/pgtable.h
View File

@ -112,8 +112,6 @@ static inline int pte_dirty(pte_t pte) \
{ return pte_val(pte) & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte) \
{ return pte_val(pte) & _PAGE_ACCESSED; }
static inline int pte_file(pte_t pte) \
{ return pte_val(pte) & _PAGE_FILE; }
static inline int pte_special(pte_t pte) { return 0; }
#define pgprot_noncached pgprot_noncached
@ -272,8 +270,7 @@ static inline void pte_clear(struct mm_struct *mm,
__FILE__, __LINE__, pgd_val(e))
/*
* Encode and decode a swap entry (must be !pte_none(pte) && !pte_present(pte)
* && !pte_file(pte)):
* Encode and decode a swap entry (must be !pte_none(pte) && !pte_present(pte):
*
* 31 30 29 28 27 26 25 24 23 22 21 20 19 18 ... 1 0
* 0 0 0 0 type. 0 0 0 0 0 0 offset.........
@ -290,11 +287,6 @@ static inline void pte_clear(struct mm_struct *mm,
#define __swp_entry_to_pte(swp) ((pte_t) { (swp).val })
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
/* Encode and decode a nonlinear file mapping entry */
#define PTE_FILE_MAX_BITS 25
#define pte_to_pgoff(pte) (pte_val(pte) & 0x1ffffff)
#define pgoff_to_pte(off) __pte(((off) & 0x1ffffff) | _PAGE_FILE)
#define kern_addr_valid(addr) (1)
#include <asm-generic/pgtable.h>