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-rw-r--r--mm/hugetlb.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index b34f50156f7e..f8ca7cca3c1a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3475,7 +3475,6 @@ static int demote_pool_huge_page(struct hstate *h, nodemask_t *nodes_allowed)
{
int nr_nodes, node;
struct page *page;
- int rc = 0;
lockdep_assert_held(&hugetlb_lock);
@@ -3486,15 +3485,19 @@ static int demote_pool_huge_page(struct hstate *h, nodemask_t *nodes_allowed)
}
for_each_node_mask_to_free(h, nr_nodes, node, nodes_allowed) {
- if (!list_empty(&h->hugepage_freelists[node])) {
- page = list_entry(h->hugepage_freelists[node].next,
- struct page, lru);
- rc = demote_free_huge_page(h, page);
- break;
+ list_for_each_entry(page, &h->hugepage_freelists[node], lru) {
+ if (PageHWPoison(page))
+ continue;
+
+ return demote_free_huge_page(h, page);
}
}
- return rc;
+ /*
+ * Only way to get here is if all pages on free lists are poisoned.
+ * Return -EBUSY so that caller will not retry.
+ */
+ return -EBUSY;
}
#define HSTATE_ATTR_RO(_name) \