lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / mm / memory-failure.c

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 8424b64..92a6479 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -539,6 +539,13 @@ static int delete_from_lru_cache(struct page *p)
                 */
                ClearPageActive(p);
                ClearPageUnevictable(p);
+
+               /*
+                * Poisoned page might never drop its ref count to 0 so we have
+                * to uncharge it manually from its memcg.
+                */
+               mem_cgroup_uncharge(p);
+
                /*
                 * drop the page count elevated by isolate_lru_page()
                 */
@@ -1208,7 +1215,10 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
         * page_remove_rmap() in try_to_unmap_one(). So to determine page status
         * correctly, we save a copy of the page flags at this time.
         */
-       page_flags = p->flags;
+       if (PageHuge(p))
+               page_flags = hpage->flags;
+       else
+               page_flags = p->flags;
 
        /*
         * unpoison always clear PG_hwpoison inside page lock
@@ -1572,7 +1582,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
                 * Did it turn free?
                 */
                ret = __get_any_page(page, pfn, 0);
-               if (!PageLRU(page)) {
+               if (ret == 1 && !PageLRU(page)) {
                        /* Drop page reference which is from __get_any_page() */
                        put_hwpoison_page(page);
                        pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n",
@@ -1619,12 +1629,8 @@ static int soft_offline_huge_page(struct page *page, int flags)
        if (ret) {
                pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
                        pfn, ret, page->flags);
-               /*
-                * We know that soft_offline_huge_page() tries to migrate
-                * only one hugepage pointed to by hpage, so we need not
-                * run through the pagelist here.
-                */
-               putback_active_hugepage(hpage);
+               if (!list_empty(&pagelist))
+                       putback_movable_pages(&pagelist);
                if (ret > 0)
                        ret = -EIO;
        } else {