#ifndef _LINUX_SWAPFILE_H
#define _LINUX_SWAPFILE_H
/*
* 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);
#endif /* _LINUX_SWAPFILE_H */