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-rw-r--r--include/linux/swapfile.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h
index e06febf62978..7ed529a77c5b 100644
--- a/include/linux/swapfile.h
+++ b/include/linux/swapfile.h
@@ -6,11 +6,13 @@
* these were static in swapfile.c but frontswap.c needs them and we don't
* want to expose them to the dozens of source files that include swap.h
*/
-extern spinlock_t swap_lock;
-extern struct plist_head swap_active_head;
extern struct swap_info_struct *swap_info[];
-extern int try_to_unuse(unsigned int, bool, unsigned long);
extern unsigned long generic_max_swapfile_size(void);
-extern unsigned long max_swapfile_size(void);
+unsigned long arch_max_swapfile_size(void);
+
+/* Maximum swapfile size supported for the arch (not inclusive). */
+extern unsigned long swapfile_maximum_size;
+/* Whether swap migration entry supports storing A/D bits for the arch */
+extern bool swap_migration_ad_supported;
#endif /* _LINUX_SWAPFILE_H */