From 515bae9cdc6a78eda0879e1f158056d73ec808b7 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 21 Jun 2005 17:15:55 -0700 Subject: [PATCH] ppc64: Mark kernel hptes dirty We dont use the hardware referenced and changed bits and setting them early avoids a store to memory. We already do this for userspace hptes but not kernel ones. Do it. Signed-off-by: Anton Blanchard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/mm/hash_utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/ppc64/mm/hash_utils.c b/arch/ppc64/mm/hash_utils.c index 87d0525f56f..1647b1c6f28 100644 --- a/arch/ppc64/mm/hash_utils.c +++ b/arch/ppc64/mm/hash_utils.c @@ -195,7 +195,7 @@ void __init htab_initialize(void) memset((void *)table, 0, htab_size_bytes); } - mode_rw = _PAGE_ACCESSED | _PAGE_COHERENT | PP_RWXX; + mode_rw = _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_COHERENT | PP_RWXX; /* On U3 based machines, we need to reserve the DART area and * _NOT_ map it to avoid cache paradoxes as it's remapped non -- cgit v1.2.3