_PAGE_BIT_FILE (bit 6) is always less than _PAGE_BIT_PROTNONE (bit 8),
so drop redundant #ifdef.
CC: Linus Torvalds <torva...@linux-foundation.org>
CC: Mel Gorman <mgor...@suse.de>
CC: Peter Anvin <h...@zytor.com>
CC: Ingo Molnar <mi...@kernel.org>
CC: Steven Noonan <ste...@uplinklabs.net>
CC: Rik van Riel <r...@redhat.com>
CC: David Vrabel <david.vra...@citrix.com>
CC: Andrew Morton <a...@linux-foundation.org>
CC: Peter Zijlstra <pet...@infradead.org>
CC: Pavel Emelyanov <xe...@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcu...@openvz.org>
---
arch/x86/include/asm/pgtable-2level.h | 10 ----------
arch/x86/include/asm/pgtable_64.h | 8 --------
2 files changed, 18 deletions(-)
Index: linux-2.6.git/arch/x86/include/asm/pgtable-2level.h
===================================================================
--- linux-2.6.git.orig/arch/x86/include/asm/pgtable-2level.h
+++ linux-2.6.git/arch/x86/include/asm/pgtable-2level.h
@@ -115,13 +115,8 @@ static __always_inline pte_t pgoff_to_pt
*/
#define PTE_FILE_MAX_BITS 29
#define PTE_FILE_SHIFT1 (_PAGE_BIT_PRESENT + 1)
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
#define PTE_FILE_SHIFT2 (_PAGE_BIT_FILE + 1)
#define PTE_FILE_SHIFT3 (_PAGE_BIT_PROTNONE + 1)
-#else
-#define PTE_FILE_SHIFT2 (_PAGE_BIT_PROTNONE + 1)
-#define PTE_FILE_SHIFT3 (_PAGE_BIT_FILE + 1)
-#endif
#define PTE_FILE_BITS1 (PTE_FILE_SHIFT2 - PTE_FILE_SHIFT1 - 1)
#define PTE_FILE_BITS2 (PTE_FILE_SHIFT3 - PTE_FILE_SHIFT2 - 1)
@@ -153,13 +148,8 @@ static __always_inline pte_t pgoff_to_pt
#endif /* CONFIG_MEM_SOFT_DIRTY */
/* Encode and de-code a swap entry */
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
#define SWP_TYPE_BITS (_PAGE_BIT_FILE - _PAGE_BIT_PRESENT - 1)
#define SWP_OFFSET_SHIFT (_PAGE_BIT_PROTNONE + 1)
-#else
-#define SWP_TYPE_BITS (_PAGE_BIT_PROTNONE - _PAGE_BIT_PRESENT - 1)
-#define SWP_OFFSET_SHIFT (_PAGE_BIT_FILE + 1)
-#endif
#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
Index: linux-2.6.git/arch/x86/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.git.orig/arch/x86/include/asm/pgtable_64.h
+++ linux-2.6.git/arch/x86/include/asm/pgtable_64.h
@@ -143,7 +143,6 @@ static inline int pgd_large(pgd_t pgd) {
#define pte_unmap(pte) ((void)(pte))/* NOP */
/* Encode and de-code a swap entry */
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
#define SWP_TYPE_BITS (_PAGE_BIT_FILE - _PAGE_BIT_PRESENT - 1)
#ifdef CONFIG_NUMA_BALANCING
/* Automatic NUMA balancing needs to be distinguishable from swap entries */
@@ -151,13 +150,6 @@ static inline int pgd_large(pgd_t pgd) {
#else
#define SWP_OFFSET_SHIFT (_PAGE_BIT_PROTNONE + 1)
#endif
-#else
-#ifdef CONFIG_NUMA_BALANCING
-#error Incompatible format for automatic NUMA balancing
-#endif
-#define SWP_TYPE_BITS (_PAGE_BIT_PROTNONE - _PAGE_BIT_PRESENT - 1)
-#define SWP_OFFSET_SHIFT (_PAGE_BIT_FILE + 1)
-#endif
#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
--
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