| /* 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 */ |