From 205e6d17cdf5b7f7b221bf64be9850eabce429c9 Mon Sep 17 00:00:00 2001 From: Ankit Agrawal Date: Thu, 15 Jan 2026 20:28:48 +0000 Subject: mm: add stubs for PFNMAP memory failure registration functions Add stubs to address CONFIG_MEMORY_FAILURE disabled. Suggested-by: Alex Williamson Signed-off-by: Ankit Agrawal Link: https://lore.kernel.org/r/20260115202849.2921-2-ankita@nvidia.com Signed-off-by: Alex Williamson --- include/linux/memory-failure.h | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'include/linux/memory-failure.h') 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 */ -- cgit v1.2.3