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-rw-r--r--mm/memory.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 4425b6059339..83be99d9d8a1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2642,6 +2642,7 @@ int do_swap_page(struct fault_env *fe, pte_t orig_pte)
if (page == swapcache) {
do_page_add_anon_rmap(page, vma, fe->address, exclusive);
mem_cgroup_commit_charge(page, memcg, true, false);
+ activate_page(page);
} else { /* ksm created a completely new copy */
page_add_new_anon_rmap(page, vma, fe->address, false);
mem_cgroup_commit_charge(page, memcg, false, false);
@@ -3133,6 +3134,8 @@ static int do_fault_around(struct fault_env *fe, pgoff_t start_pgoff)
if (pmd_none(*fe->pmd)) {
fe->prealloc_pte = pte_alloc_one(fe->vma->vm_mm, fe->address);
+ if (!fe->prealloc_pte)
+ goto out;
smp_wmb(); /* See comment in __pte_alloc() */
}