1 files changed, 15 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 6d188161b20e..64e61b032dac 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -35,6 +35,21 @@ struct folio_batch;
 /* Do not use these with a slab allocator */
 #define GFP_SLAB_BUG_MASK (__GFP_DMA32|__GFP_HIGHMEM|~__GFP_BITS_MASK)
 
+/*
+ * Different from WARN_ON_ONCE(), no warning will be issued
+ * when we specify __GFP_NOWARN.
+ */
+#define WARN_ON_ONCE_GFP(cond, gfp)	({				\
+	static bool __section(".data.once") __warned;			\
+	int __ret_warn_once = !!(cond);					\
+									\
+	if (unlikely(!(gfp & __GFP_NOWARN) && __ret_warn_once && !__warned)) { \
+		__warned = true;					\
+		WARN_ON(1);						\
+	}								\
+	unlikely(__ret_warn_once);					\
+})
+
 void page_writeback_init(void);
 
 static inline void *folio_raw_mapping(struct folio *folio)