| /* 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); |
| |
| extern int unuse_swap_pte(struct vm_area_struct *vma, pmd_t *pmd, |
| unsigned long addr, swp_entry_t entry, struct folio *folio); |
| |
| /* 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 */ |
