diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7d8f642..ecf6633 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1647,19 +1647,11 @@ static inline void expand(struct zone *zone, struct page *page, } } -/* - * This page is about to be returned from the page allocator - */ -static inline int check_new_page(struct page *page) +static void check_new_page_bad(struct page *page) { - const char *bad_reason; - unsigned long bad_flags; + const char *bad_reason = NULL; + unsigned long bad_flags = 0; - if (page_expected_state(page, PAGE_FLAGS_CHECK_AT_PREP|__PG_HWPOISON)) - return 0; - - bad_reason = NULL; - bad_flags = 0; if (unlikely(atomic_read(&page->_mapcount) != -1)) bad_reason = "nonzero mapcount"; if (unlikely(page->mapping != NULL)) @@ -1678,11 +1670,20 @@ static inline int check_new_page(struct page *page) if (unlikely(page->mem_cgroup)) bad_reason = "page still charged to cgroup"; #endif - if (unlikely(bad_reason)) { - bad_page(page, bad_reason, bad_flags); - return 1; - } - return 0; + bad_page(page, bad_reason, bad_flags); +} + +/* + * This page is about to be returned from the page allocator + */ +static inline int check_new_page(struct page *page) +{ + if (likely(page_expected_state(page, + PAGE_FLAGS_CHECK_AT_PREP|__PG_HWPOISON))) + return 0; + + check_new_page_bad(page); + return 1; } static inline bool free_pages_prezeroed(bool poisoned) |