Commit a72a08a4 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar
Browse files

x86: cpa: fix split thinko 



Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 3c1df68b

arch/x86/mm/pageattr.c

+4 −0
Original line number Diff line number Diff line
@@ -216,8 +216,12 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot) 
	prot = static_protections(prot, address);



	if (level == PG_LEVEL_4K) {

		WARN_ON_ONCE(pgprot_val(prot) & _PAGE_PSE);

		set_pte_atomic(kpte, pfn_pte(pfn, canon_pgprot(prot)));

	} else {

		/* Clear the PSE bit for the 4k level pages ! */

		pgprot_val(prot) = pgprot_val(prot) & ~_PAGE_PSE;



		err = split_large_page(kpte, address);

		if (!err)

			goto repeat;