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Suggested-by: Alex Williamson Signed-off-by: Ankit Agrawal --- include/linux/memory-failure.h | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/memory-failure.h b/include/linux/memory-failure.h index 7b5e11cf905f..d333dcdbeae7 100644 --- a/include/linux/memory-failure.h +++ b/include/linux/memory-failure.h @@ -4,8 +4,6 @@ #include -struct pfn_address_space; - struct pfn_address_space { struct interval_tree_node node; struct address_space *mapping; @@ -13,7 +11,18 @@ struct pfn_address_space { unsigned long pfn, pgoff_t *pgoff); }; +#ifdef CONFIG_MEMORY_FAILURE int register_pfn_address_space(struct pfn_address_space *pfn_space); void unregister_pfn_address_space(struct pfn_address_space *pfn_space); +#else +static inline int register_pfn_address_space(struct pfn_address_space *pfn_space) +{ + return -EOPNOTSUPP; +} + +static inline void unregister_pfn_address_space(struct pfn_address_space *pfn_space) +{ +} +#endif /* CONFIG_MEMORY_FAILURE */ #endif /* _LINUX_MEMORY_FAILURE_H */ -- 2.34.1