diff options
| -rw-r--r-- | mm/memory-failure.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index f9fa9982b5d4..7c63ba9ff6e7 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1707,6 +1707,9 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags) } else if (is_free_buddy_page(p)) { pr_info("%s: %#lx free buddy page\n", __func__, pfn); ret = 0; + } else if (page_count(p)) { + /* raced with allocation */ + ret = -EBUSY; } else { pr_info("%s: %#lx: unknown zero refcount page type %lx\n", __func__, pfn, p->flags); @@ -1723,6 +1726,9 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags) { int ret = __get_any_page(page, pfn, flags); + if (ret == -EBUSY) + ret = __get_any_page(page, pfn, flags); + if (ret == 1 && !PageHuge(page) && !PageLRU(page) && !__PageMovable(page)) { /* |