NFS: Add a few more fatal I/O errors to nfs_error_is_fatal()

[karo-tx-linux.git] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3d0aab9ee80d1f27e29074b95773649a48d7c7bf..e5828875f7bbd7a770d5c23334a0e3994ffe544f 100644 (file)
--- 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;