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-rw-r--r--mm/hugetlb.c34
1 files changed, 0 insertions, 34 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index b2d44363837a..8254e8f6db6b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4746,40 +4746,6 @@ follow_huge_pgd(struct mm_struct *mm, unsigned long address, pgd_t *pgd, int fla
return pte_page(*(pte_t *)pgd) + ((address & ~PGDIR_MASK) >> PAGE_SHIFT);
}
-#ifdef CONFIG_MEMORY_FAILURE
-
-/*
- * This function is called from memory failure code.
- */
-int dequeue_hwpoisoned_huge_page(struct page *hpage)
-{
- struct hstate *h = page_hstate(hpage);
- int nid = page_to_nid(hpage);
- int ret = -EBUSY;
-
- spin_lock(&hugetlb_lock);
- /*
- * Just checking !page_huge_active is not enough, because that could be
- * an isolated/hwpoisoned hugepage (which have >0 refcount).
- */
- if (!page_huge_active(hpage) && !page_count(hpage)) {
- /*
- * Hwpoisoned hugepage isn't linked to activelist or freelist,
- * but dangling hpage->lru can trigger list-debug warnings
- * (this happens when we call unpoison_memory() on it),
- * so let it point to itself with list_del_init().
- */
- list_del_init(&hpage->lru);
- set_page_refcounted(hpage);
- h->free_huge_pages--;
- h->free_huge_pages_node[nid]--;
- ret = 0;
- }
- spin_unlock(&hugetlb_lock);
- return ret;
-}
-#endif
-
bool isolate_huge_page(struct page *page, struct list_head *list)
{
bool ret = true;