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Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 4805fdec8d6e..5a743cc87238 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -108,6 +108,9 @@ enum pageflags {
#ifdef CONFIG_MEMORY_FAILURE
PG_hwpoison, /* hardware poisoned page. Don't touch */
#endif
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ PG_compound_lock,
+#endif
__NR_PAGEFLAGS,
/* Filesystems */
@@ -397,6 +400,12 @@ static inline void __ClearPageTail(struct page *page)
#define __PG_MLOCKED 0
#endif
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#define __PG_COMPOUND_LOCK (1 << PG_compound_lock)
+#else
+#define __PG_COMPOUND_LOCK 0
+#endif
+
/*
* Flags checked when a page is freed. Pages being freed should not have
* these flags set. It they are, there is a problem.
@@ -406,7 +415,8 @@ static inline void __ClearPageTail(struct page *page)
1 << PG_private | 1 << PG_private_2 | \
1 << PG_buddy | 1 << PG_writeback | 1 << PG_reserved | \
1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \
- 1 << PG_unevictable | __PG_MLOCKED | __PG_HWPOISON)
+ 1 << PG_unevictable | __PG_MLOCKED | __PG_HWPOISON | \
+ __PG_COMPOUND_LOCK)
/*
* Flags checked when a page is prepped for return by the page allocator.