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Commit a32ad462 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Ingo Molnar
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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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 88b4c146

arch/x86/mm/init_64.c

+0 −3
Original line number Diff line number Diff line
@@ -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);



	/*