diff options
Diffstat (limited to 'include/linux/swapfile.h')
| -rw-r--r-- | include/linux/swapfile.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h new file mode 100644 index 000000000000..9d995cd9009b --- /dev/null +++ b/include/linux/swapfile.h @@ -0,0 +1,20 @@ +#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 spinlock_t swap_avail_lock; +extern struct plist_head swap_avail_head; +extern struct swap_info_struct *swap_info[]; +extern int try_to_unuse(unsigned int, bool, unsigned long); +extern int swap_ratio(struct swap_info_struct **si); +extern void setup_swap_ratio(struct swap_info_struct *p, int prio); +extern bool is_swap_ratio_group(int prio); +extern unsigned long generic_max_swapfile_size(void); +extern unsigned long max_swapfile_size(void); + +#endif /* _LINUX_SWAPFILE_H */ |