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Commit 8e31c2ac authored by Andi Kleen's avatar Andi Kleen Committed by Ingo Molnar
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x86: CPA: remove BUG_ON for LRU/Compound pages 



New implementation does not use lru for anything so there is no need
to reject pages that are in the LRU. Similar for compound pages (which
were checked because they also use page->lru)

[ tglx@linutronix.de: removed unused variable ]

Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent aa65af3f

arch/x86/mm/pageattr.c

+0 −5
Original line number Diff line number Diff line
@@ -513,7 +513,6 @@ static int __change_page_attr(struct cpa_data *cpa, int primary) 
	unsigned long address = cpa->vaddr;

	int do_split, err;

	unsigned int level;

	struct page *kpte_page;

	pte_t *kpte, old_pte;



repeat:
@@ -532,10 +531,6 @@ static int __change_page_attr(struct cpa_data *cpa, int primary) 
		return -EINVAL;

	}



	kpte_page = virt_to_page(kpte);

	BUG_ON(PageLRU(kpte_page));

	BUG_ON(PageCompound(kpte_page));



	if (level == PG_LEVEL_4K) {

		pte_t new_pte;

		pgprot_t new_prot = pte_pgprot(old_pte);