TESTCLEARFLAG(uname, lname, policy)
#define TESTPAGEFLAG_FALSE(uname, lname) \
-static inline bool folio_test_##lname(const struct folio *folio) { return 0; } \
+static inline bool folio_test_##lname(const struct folio *folio) { return false; } \
static inline int Page##uname(const struct page *page) { return 0; }
#define SETPAGEFLAG_NOOP(uname, lname) \
PAGEFLAG(HWPoison, hwpoison, PF_ANY)
TESTSCFLAG(HWPoison, hwpoison, PF_ANY)
#define __PG_HWPOISON (1UL << PG_hwpoison)
+#define MAGIC_HWPOISON 0x48575053U /* HWPS */
+extern void SetPageHWPoisonTakenOff(struct page *page);
+extern void ClearPageHWPoisonTakenOff(struct page *page);
extern bool take_page_off_buddy(struct page *page);
+extern bool put_page_back_buddy(struct page *page);
#else
PAGEFLAG_FALSE(HWPoison, hwpoison)
#define __PG_HWPOISON 0
__PAGEFLAG(Isolated, isolated, PF_ANY);
-/*
- * If network-based swap is enabled, sl*b must keep track of whether pages
- * were allocated from pfmemalloc reserves.
- */
-static inline int PageSlabPfmemalloc(struct page *page)
-{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
- return PageActive(page);
-}
-
-/*
- * A version of PageSlabPfmemalloc() for opportunistic checks where the page
- * might have been freed under us and not be a PageSlab anymore.
- */
-static inline int __PageSlabPfmemalloc(struct page *page)
-{
- return PageActive(page);
-}
-
-static inline void SetPageSlabPfmemalloc(struct page *page)
-{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
- SetPageActive(page);
-}
-
-static inline void __ClearPageSlabPfmemalloc(struct page *page)
-{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
- __ClearPageActive(page);
-}
-
-static inline void ClearPageSlabPfmemalloc(struct page *page)
-{
- VM_BUG_ON_PAGE(!PageSlab(page), page);
- ClearPageActive(page);
-}
-
#ifdef CONFIG_MMU
#define __PG_MLOCKED (1UL << PG_mlocked)
#else