From a32ad4626776f09b30ef98a872a5f6fb64fe6607 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Sun, 7 Sep 2008 15:21:17 -0700 Subject: [PATCH] x86-64: don't check for map replacement The check prevents flags on mappings from being changed, which is not desireable. There's no need to check for replacing a mapping, and x86-32 does not do this check. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 5beb89683453..7c8bb46e83e4 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -196,9 +196,6 @@ set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte) } pte = pte_offset_kernel(pmd, vaddr); - if (!pte_none(*pte) && pte_val(new_pte) && - pte_val(*pte) != (pte_val(new_pte) & __supported_pte_mask)) - pte_ERROR(*pte); set_pte(pte, new_pte); /* -- 2.20.1