[PATCH V2 20/68] powerpc/mm: Handle _PTE_NONE_MASK

Aneesh Kumar K.V aneesh.kumar at linux.vnet.ibm.com
Sat Apr 9 16:13:16 AEST 2016


I am splitting this as a separate patch to get better review. If ok
we should merge this with previous patch.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/book3s/64/hash.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index d547c6b44749..9d1f986bc60a 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -36,8 +36,7 @@
 #endif
 #define _PAGE_SPECIAL		0x00400 /* software: special page */
 #define H_PAGE_BUSY		0x00800 /* software: PTE & hash are busy */
-
-
+#define H_PTE_NONE_MASK		_PAGE_HPTEFLAGS
 #define H_PAGE_F_GIX_SHIFT	57
 #define H_PAGE_F_GIX		(7ul << 57)	/* HPTE index within HPTEG */
 #define H_PAGE_F_SECOND		(1ul << 60)	/* HPTE is in 2ndary HPTEG */
@@ -136,7 +135,6 @@
 
 /* Hash table based platforms need atomic updates of the linux PTE */
 #define PTE_ATOMIC_UPDATES	1
-#define _PTE_NONE_MASK	_PAGE_HPTEFLAGS
 /*
  * _PAGE_CHG_MASK masks of bits that are to be preserved across
  * pgprot changes
@@ -381,7 +379,7 @@ static inline int pte_write(pte_t pte)		{ return !!(pte_val(pte) & _PAGE_WRITE);
 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_special(pte_t pte)	{ return !!(pte_val(pte) & _PAGE_SPECIAL); }
-static inline int pte_none(pte_t pte)		{ return (pte_val(pte) & ~_PTE_NONE_MASK) == 0; }
+static inline int pte_none(pte_t pte)		{ return (pte_val(pte) & ~H_PTE_NONE_MASK) == 0; }
 static inline pgprot_t pte_pgprot(pte_t pte)	{ return __pgprot(pte_val(pte) & PAGE_PROT_BITS); }
 
 #ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
-- 
2.5.0



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