diff options
Diffstat (limited to 'kernel/power/power.h')
| -rw-r--r-- | kernel/power/power.h | 27 |
1 files changed, 3 insertions, 24 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index a64d3f22de97..a3e47cbdaf31 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -143,30 +143,9 @@ struct resume_swap_area { /* If unset, the snapshot device cannot be open. */ extern atomic_t snapshot_device_available; -/** - * The bitmap is used for tracing allocated swap pages - * - * The entire bitmap consists of a number of bitmap_page - * structures linked with the help of the .next member. - * Thus each page can be allocated individually, so we only - * need to make 0-order memory allocations to create - * the bitmap. - */ - -#define BITMAP_PAGE_SIZE (PAGE_SIZE - sizeof(void *)) -#define BITMAP_PAGE_CHUNKS (BITMAP_PAGE_SIZE / sizeof(long)) -#define BITS_PER_CHUNK (sizeof(long) * 8) -#define BITMAP_PAGE_BITS (BITMAP_PAGE_CHUNKS * BITS_PER_CHUNK) - -struct bitmap_page { - unsigned long chunks[BITMAP_PAGE_CHUNKS]; - struct bitmap_page *next; -}; - -extern void free_bitmap(struct bitmap_page *bitmap); -extern struct bitmap_page *alloc_bitmap(unsigned int nr_bits); -extern sector_t alloc_swapdev_block(int swap, struct bitmap_page *bitmap); -extern void free_all_swap_pages(int swap, struct bitmap_page *bitmap); +extern sector_t alloc_swapdev_block(int swap); +extern void free_all_swap_pages(int swap); +extern int swsusp_swap_in_use(void); extern int swsusp_check(void); extern int swsusp_shrink_memory(void); |