x86: CPA remove bogus NX clear

In split_large_page we clear the NX bit for the new split ptes, but we
need to preserve the original setting of it for the split ptes.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index e297bd65e513308fd1c2a26ee59126c8c077e04b..877b5cca2cb8534b84c3e5c3fa921ebe960b22fa 100644 (file)
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -225,7 +225,6 @@ static int split_large_page(pte_t *kpte, unsigned long address)
        paravirt_alloc_pt(&init_mm, page_to_pfn(base));
 #endif
 
-       pgprot_val(ref_prot) &= ~_PAGE_NX;
        for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE)
                set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, ref_prot));