diff options
Diffstat (limited to 'include/linux/swapfile.h')
| -rw-r--r-- | include/linux/swapfile.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h new file mode 100644 index 000000000..7ed529a77 --- /dev/null +++ b/include/linux/swapfile.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#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 struct swap_info_struct *swap_info[]; +extern unsigned long generic_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 */ |