/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_MEMORY_FAILURE_H #define _LINUX_MEMORY_FAILURE_H #include <linux/interval_tree.h> struct pfn_address_space { struct interval_tree_node node; struct address_space *mapping; int (*pfn_to_vma_pgoff)(struct vm_area_struct *vma, 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 */