Merge tag 'audit-pr-20220321' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoor...

[linux-2.6-microblaze.git] / include / linux / frontswap.h

diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index b07d88c..a631bac 100644 (file)
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -7,31 +7,17 @@
 #include <linux/bitops.h>
 #include <linux/jump_label.h>
 
-/*
- * Return code to denote that requested number of
- * frontswap pages are unused(moved to page cache).
- * Used in shmem_unuse and try_to_unuse.
- */
-#define FRONTSWAP_PAGES_UNUSED 2
-
 struct frontswap_ops {
        void (*init)(unsigned); /* this swap type was just swapon'ed */
        int (*store)(unsigned, pgoff_t, struct page *); /* store a page */
        int (*load)(unsigned, pgoff_t, struct page *); /* load a page */
        void (*invalidate_page)(unsigned, pgoff_t); /* page no longer needed */
        void (*invalidate_area)(unsigned); /* swap type just swapoff'ed */
-       struct frontswap_ops *next; /* private pointer to next ops */
 };
 
-extern void frontswap_register_ops(struct frontswap_ops *ops);
-extern void frontswap_shrink(unsigned long);
-extern unsigned long frontswap_curr_pages(void);
-extern void frontswap_writethrough(bool);
-#define FRONTSWAP_HAS_EXCLUSIVE_GETS
-extern void frontswap_tmem_exclusive_gets(bool);
+int frontswap_register_ops(const struct frontswap_ops *ops);
 
-extern bool __frontswap_test(struct swap_info_struct *, pgoff_t);
-extern void __frontswap_init(unsigned type, unsigned long *map);
+extern void frontswap_init(unsigned type, unsigned long *map);
 extern int __frontswap_store(struct page *page);
 extern int __frontswap_load(struct page *page);
 extern void __frontswap_invalidate_page(unsigned, pgoff_t);
@@ -45,11 +31,6 @@ static inline bool frontswap_enabled(void)
        return static_branch_unlikely(&frontswap_enabled_key);
 }
 
-static inline bool frontswap_test(struct swap_info_struct *sis, pgoff_t offset)
-{
-       return __frontswap_test(sis, offset);
-}
-
 static inline void frontswap_map_set(struct swap_info_struct *p,
                                     unsigned long *map)
 {
@@ -68,11 +49,6 @@ static inline bool frontswap_enabled(void)
        return false;
 }
 
-static inline bool frontswap_test(struct swap_info_struct *sis, pgoff_t offset)
-{
-       return false;
-}
-
 static inline void frontswap_map_set(struct swap_info_struct *p,
                                     unsigned long *map)
 {
@@ -112,11 +88,4 @@ static inline void frontswap_invalidate_area(unsigned type)
                __frontswap_invalidate_area(type);
 }
 
-static inline void frontswap_init(unsigned type, unsigned long *map)
-{
-#ifdef CONFIG_FRONTSWAP
-       __frontswap_init(type, map);
-#endif
-}
-
 #endif /* _LINUX_FRONTSWAP_H */