Commit b50516fc authored Feb 04, 2008 by Thomas Gleixner Committed by Ingo Molnar Feb 04, 2008

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>

parent 4cf31841

arch/x86/mm/pageattr.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -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));