diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2015-02-11 01:10:36 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-11 01:30:32 +0300 |
| commit | 636a002b704e0a36cefb5f4cf0293fab858fc46c (patch) | |
| tree | b751b2cc7b07c9998bde925945d7817e49a6f176 | |
| parent | d99f95e6522db22192c331c75de182023a49fbcc (diff) | |
| download | linux-636a002b704e0a36cefb5f4cf0293fab858fc46c.tar.xz | |
ia64: drop _PAGE_FILE and pte_file()-related helpers
We've replaced remap_file_pages(2) implementation with emulation. Nobody
creates non-linear mapping anymore.
This patch also increase number of bits availble for swap offset.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/ia64/include/asm/pgtable.h | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index 7935115398a6..2f07bb3dda91 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -57,9 +57,6 @@ #define _PAGE_ED (__IA64_UL(1) << 52) /* exception deferral */ #define _PAGE_PROTNONE (__IA64_UL(1) << 63) -/* Valid only for a PTE with the present bit cleared: */ -#define _PAGE_FILE (1 << 1) /* see swap & file pte remarks below */ - #define _PFN_MASK _PAGE_PPN_MASK /* Mask of bits which may be changed by pte_modify(); the odd bits are there for _PAGE_PROTNONE */ #define _PAGE_CHG_MASK (_PAGE_P | _PAGE_PROTNONE | _PAGE_PL_MASK | _PAGE_AR_MASK | _PAGE_ED) @@ -300,7 +297,6 @@ extern unsigned long VMALLOC_END; #define pte_exec(pte) ((pte_val(pte) & _PAGE_AR_RX) != 0) #define pte_dirty(pte) ((pte_val(pte) & _PAGE_D) != 0) #define pte_young(pte) ((pte_val(pte) & _PAGE_A) != 0) -#define pte_file(pte) ((pte_val(pte) & _PAGE_FILE) != 0) #define pte_special(pte) 0 /* @@ -472,27 +468,16 @@ extern void paging_init (void); * * Format of swap pte: * bit 0 : present bit (must be zero) - * bit 1 : _PAGE_FILE (must be zero) - * bits 2- 8: swap-type - * bits 9-62: swap offset - * bit 63 : _PAGE_PROTNONE bit - * - * Format of file pte: - * bit 0 : present bit (must be zero) - * bit 1 : _PAGE_FILE (must be one) - * bits 2-62: file_offset/PAGE_SIZE + * bits 1- 7: swap-type + * bits 8-62: swap offset * bit 63 : _PAGE_PROTNONE bit */ -#define __swp_type(entry) (((entry).val >> 2) & 0x7f) -#define __swp_offset(entry) (((entry).val << 1) >> 10) -#define __swp_entry(type,offset) ((swp_entry_t) { ((type) << 2) | ((long) (offset) << 9) }) +#define __swp_type(entry) (((entry).val >> 1) & 0x7f) +#define __swp_offset(entry) (((entry).val << 1) >> 9) +#define __swp_entry(type,offset) ((swp_entry_t) { ((type) << 1) | ((long) (offset) << 8) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define PTE_FILE_MAX_BITS 61 -#define pte_to_pgoff(pte) ((pte_val(pte) << 1) >> 3) -#define pgoff_to_pte(off) ((pte_t) { ((off) << 2) | _PAGE_FILE }) - /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. |