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authorJeremy Fitzhardinge <jeremy@goop.org>2008-09-07 15:21:17 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-13 10:21:05 +0200
commita32ad4626776f09b30ef98a872a5f6fb64fe6607 (patch)
tree5345673a5c9728c2f51ab177b19842b5f2fa2965 /arch
parent88b4c146961f4178f38a8c3e6e54709fa39a3f36 (diff)
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 <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/mm/init_64.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5beb8968345..7c8bb46e83e 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);
/*