1 files changed, 7 insertions, 3 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3d0aab9ee80d..e5828875f7bb 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4403,7 +4403,9 @@ int hugetlb_reserve_pages(struct inode *inode,
         return 0;
 out_err:
         if (!vma || vma->vm_flags & VM_MAYSHARE)
-                region_abort(resv_map, from, to);
+                /* Don't call region_abort if region_chg failed */
+                if (chg >= 0)
+                        region_abort(resv_map, from, to);
         if (vma && is_vma_resv_set(vma, HPAGE_RESV_OWNER))
                 kref_put(&resv_map->refs, resv_map_release);
         return ret;
@@ -4651,6 +4653,7 @@ follow_huge_pmd(struct mm_struct *mm, unsigned long address,
 {
         struct page *page = NULL;
         spinlock_t *ptl;
+        pte_t pte;
 retry:
         ptl = pmd_lockptr(mm, pmd);
         spin_lock(ptl);
@@ -4660,12 +4663,13 @@ retry:
          */
         if (!pmd_huge(*pmd))
                 goto out;
-        if (pmd_present(*pmd)) {
+        pte = huge_ptep_get((pte_t *)pmd);
+        if (pte_present(pte)) {
                 page = pmd_page(*pmd) + ((address & ~PMD_MASK) >> PAGE_SHIFT);
                 if (flags & FOLL_GET)
                         get_page(page);
         } else {
-                if (is_hugetlb_entry_migration(huge_ptep_get((pte_t *)pmd))) {
+                if (is_hugetlb_entry_migration(pte)) {
                         spin_unlock(ptl);
                         __migration_entry_wait(mm, (pte_t *)pmd, ptl);
                         goto retry;