mm, thp: do not allow thp faults to avoid cpuset restrictions

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

diff --git a/mm/memory.c b/mm/memory.c
index d67fd9fcf1f2e11d8b77c513113475df125ad99d..7e8d8205b6108fcf5b0a97aad3da36c9455b230f 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2882,7 +2882,8 @@ static int do_read_fault(struct mm_struct *mm, struct vm_area_struct *vma,
         * if page by the offset is not ready to be mapped (cold cache or
         * something).
         */
-       if (vma->vm_ops->map_pages && fault_around_pages() > 1) {
+       if (vma->vm_ops->map_pages && !(flags & FAULT_FLAG_NONLINEAR) &&
+           fault_around_pages() > 1) {
                pte = pte_offset_map_lock(mm, pmd, address, &ptl);
                do_fault_around(vma, address, pte, pgoff, flags);
                if (!pte_same(*pte, orig_pte))