LXR linux/include/linux/swapfile.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_SWAPFILE_H
   3#define _LINUX_SWAPFILE_H
   4
   5/*
   6 * these were static in swapfile.c but frontswap.c needs them and we don't
   7 * want to expose them to the dozens of source files that include swap.h
   8 */
   9extern spinlock_t swap_lock;
  10extern struct plist_head swap_active_head;
  11extern struct swap_info_struct *swap_info[];
  12extern int try_to_unuse(unsigned int, bool, unsigned long);
  13extern unsigned long generic_max_swapfile_size(void);
  14extern unsigned long max_swapfile_size(void);
  15
  16#endif /* _LINUX_SWAPFILE_H */
  17