1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright(c) 2018 Intel Corporation. All rights reserved.
5 #include <linux/jump_label.h>
7 #define SHUFFLE_ORDER (MAX_ORDER-1)
9 #ifdef CONFIG_SHUFFLE_PAGE_ALLOCATOR
10 DECLARE_STATIC_KEY_FALSE(page_alloc_shuffle_key);
11 extern void __shuffle_free_memory(pg_data_t *pgdat);
12 extern bool shuffle_pick_tail(void);
13 static inline void shuffle_free_memory(pg_data_t *pgdat)
15 if (!static_branch_unlikely(&page_alloc_shuffle_key))
17 __shuffle_free_memory(pgdat);
20 extern void __shuffle_zone(struct zone *z);
21 static inline void shuffle_zone(struct zone *z)
23 if (!static_branch_unlikely(&page_alloc_shuffle_key))
28 static inline bool is_shuffle_order(int order)
30 if (!static_branch_unlikely(&page_alloc_shuffle_key))
32 return order >= SHUFFLE_ORDER;
35 static inline bool shuffle_pick_tail(void)
40 static inline void shuffle_free_memory(pg_data_t *pgdat)
44 static inline void shuffle_zone(struct zone *z)
48 static inline bool is_shuffle_order(int order)
53 #endif /* _MM_SHUFFLE_H */