From 0d594aa75f5e9f48c5365708f9b7d286a73ede53 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 24 Apr 2018 18:31:30 +0200 Subject: [PATCH] powerpc/nohash: Remove _PAGE_BUSY _PAGE_BUSY is always 0, remove it. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/nohash/64/pgtable.h | 10 +++------- arch/powerpc/include/asm/nohash/pte-book3e.h | 5 ----- 2 files changed, 3 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index ef3fdfc..6ac8381 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -186,14 +186,12 @@ static inline unsigned long pte_update(struct mm_struct *mm, __asm__ __volatile__( "1: ldarx %0,0,%3 # pte_update\n\ - andi. %1,%0,%6\n\ - bne- 1b \n\ andc %1,%0,%4 \n\ - or %1,%1,%7\n\ + or %1,%1,%6\n\ stdcx. %1,0,%3 \n\ bne- 1b" : "=&r" (old), "=&r" (tmp), "=m" (*ptep) - : "r" (ptep), "r" (clr), "m" (*ptep), "i" (_PAGE_BUSY), "r" (set) + : "r" (ptep), "r" (clr), "m" (*ptep), "r" (set) : "cc" ); #else unsigned long old = pte_val(*ptep); @@ -295,13 +293,11 @@ static inline void __ptep_set_access_flags(struct mm_struct *mm, __asm__ __volatile__( "1: ldarx %0,0,%4\n\ - andi. %1,%0,%6\n\ - bne- 1b \n\ or %0,%3,%0\n\ stdcx. %0,0,%4\n\ bne- 1b" :"=&r" (old), "=&r" (tmp), "=m" (*ptep) - :"r" (bits), "r" (ptep), "m" (*ptep), "i" (_PAGE_BUSY) + :"r" (bits), "r" (ptep), "m" (*ptep) :"cc"); #else unsigned long old = pte_val(*ptep); diff --git a/arch/powerpc/include/asm/nohash/pte-book3e.h b/arch/powerpc/include/asm/nohash/pte-book3e.h index 9ff51b4..12730b8 100644 --- a/arch/powerpc/include/asm/nohash/pte-book3e.h +++ b/arch/powerpc/include/asm/nohash/pte-book3e.h @@ -57,13 +57,8 @@ #define _PAGE_USER (_PAGE_BAP_UR | _PAGE_BAP_SR) /* Can be read */ #define _PAGE_PRIVILEGED (_PAGE_BAP_SR) -#define _PAGE_BUSY 0 - #define _PAGE_SPECIAL _PAGE_SW0 -/* Flags to be preserved on PTE modifications */ -#define _PAGE_HPTEFLAGS _PAGE_BUSY - /* Base page size */ #ifdef CONFIG_PPC_64K_PAGES #define _PAGE_PSIZE _PAGE_PSIZE_64K -- 2.7.4