int swsusp_shrink_memory(void)
{
long size, tmp;
struct zone *zone;
unsigned long pages = 0;
unsigned int i = 0;
char *p = "-\\|/";
printk("Shrinking memory... ");
do {
size = 2 * count_highmem_pages();
size += size / 50 + count_data_pages();
size += (size + PBES_PER_PAGE - 1) / PBES_PER_PAGE +
PAGES_FOR_IO;
tmp = size;
for_each_zone (zone)
if (!is_highmem(zone))
tmp -= zone->free_pages;
if (tmp > 0) {
tmp = shrink_all_memory(SHRINK_BITE);
if (!tmp)
return -ENOMEM;
pages += tmp;
} else if (size > image_size / PAGE_SIZE) {
tmp = shrink_all_memory(SHRINK_BITE);
pages += tmp;
}
printk("\b%c", p[i++%4]);
} while (tmp > 0);
printk("\bdone (%lu pages freed)\n", pages);
return 0;
}
int swsusp_shrink_memory(void)
{
long tmp;
struct zone *zone;
unsigned long pages = 0;
unsigned int i = 0;
char *p = "-\\|/";
struct timeval start, stop;
printk("Shrinking memory... ");
do_gettimeofday(&start);
do {
long size, highmem_size;
highmem_size = count_highmem_pages();
size = count_data_pages() + PAGES_FOR_IO;
tmp = size;
size += highmem_size;
for_each_zone (zone)
if (populated_zone(zone)) {
if (is_highmem(zone)) {
highmem_size -=
zone_page_state(zone, NR_FREE_PAGES);
} else {
tmp -= zone_page_state(zone, NR_FREE_PAGES);
tmp += zone->lowmem_reserve[ZONE_NORMAL];
tmp += snapshot_additional_pages(zone);
}
}
if (highmem_size < 0)
highmem_size = 0;
tmp += highmem_size;
if (tmp > 0) {
tmp = __shrink_memory(tmp);
if (!tmp)
return -ENOMEM;
pages += tmp;
} else if (size > image_size / PAGE_SIZE) {
tmp = __shrink_memory(size - (image_size / PAGE_SIZE));
pages += tmp;
}
printk("\b%c", p[i++%4]);
} while (tmp > 0);
do_gettimeofday(&stop);
printk("\bdone (%lu pages freed)\n", pages);
swsusp_show_speed(&start, &stop, pages, "Freed");
return 0;
}
