fs/pstore/internal.h

extern void	pstore_set_kmsg_bytes(int);
extern void	pstore_get_records(void);
extern int	pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
			      char *data, size_t size,
			      struct timespec time, int (*erase)(u64));
extern int	pstore_is_mounted(void);