Merge branch 'akpm' (patches from Andrew)

Merge fixes from Andrew Morton:
 "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  dma-mapping: avoid oops when parameter cpu_addr is null
  mm/hugetlb: use EOPNOTSUPP in hugetlb sysctl handlers
  memremap: check pfn validity before passing to pfn_to_page()
  mm, thp: fix migration of PTE-mapped transparent huge pages
  dax: check return value of dax_radix_entry()
  ocfs2: fix return value from ocfs2_page_mkwrite()
  arm64: kasan: clear stale stack poison
  sched/kasan: remove stale KASAN poison after hotplug
  kasan: add functions to clear stack poison
  mm: fix mixed zone detection in devm_memremap_pages
  list: kill list_force_poison()
  mm: __delete_from_page_cache show Bad page if mapped
  mm/hugetlb: hugetlb_no_page: rate-limit warning message

1 files changed, 3 insertions, 3 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 01f2b48c8618..aefba5a9cc47 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2751,7 +2751,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
 	int ret;
 
 	if (!hugepages_supported())
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	table->data = &tmp;
 	table->maxlen = sizeof(unsigned long);
@@ -2792,7 +2792,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
 	int ret;
 
 	if (!hugepages_supported())
-		return -ENOTSUPP;
+		return -EOPNOTSUPP;
 
 	tmp = h->nr_overcommit_huge_pages;
 
@@ -3502,7 +3502,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	 * COW. Warn that such a situation has occurred as it may not be obvious
 	 */
 	if (is_vma_resv_set(vma, HPAGE_RESV_UNMAPPED)) {
-		pr_warning("PID %d killed due to inadequate hugepage pool\n",
+		pr_warn_ratelimited("PID %d killed due to inadequate hugepage pool\n",
 			   current->pid);
 		return ret;
 	}