Lines Matching defs:pfn

714  * Walk the radix tree to find the page containing the bit that represents @pfn
717 static int memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, void **addr, unsigned int *bit_nr)
725     if (pfn >= zone->start_pfn && pfn < zone->end_pfn) {
734         if (pfn >= curr->start_pfn && pfn < curr->end_pfn) {
752      * pfn falls into the current node then we do not need to walk
756     if (zone == bm->cur.zone && ((pfn - zone->start_pfn) & ~BM_BLOCK_MASK) == bm->cur.node_pfn) {
761     block_nr = (pfn - zone->start_pfn) >> BM_BLOCK_SHIFT;
776     bm->cur.node_pfn = (pfn - zone->start_pfn) & ~BM_BLOCK_MASK;
780     *bit_nr = (pfn - zone->start_pfn) & BM_BLOCK_MASK;
785 static void memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn)
791     error = memory_bm_find_bit(bm, pfn, &addr, &bit);
796 static int mem_bm_set_bit_check(struct memory_bitmap *bm, unsigned long pfn)
802     error = memory_bm_find_bit(bm, pfn, &addr, &bit);
810 static void memory_bm_clear_bit(struct memory_bitmap *bm, unsigned long pfn)
816     error = memory_bm_find_bit(bm, pfn, &addr, &bit);
829 static int memory_bm_test_bit(struct memory_bitmap *bm, unsigned long pfn)
835     error = memory_bm_find_bit(bm, pfn, &addr, &bit);
840 static bool memory_bm_pfn_present(struct memory_bitmap *bm, unsigned long pfn)
845     return !memory_bm_find_bit(bm, pfn, &addr, &bit);
894     unsigned long bits, pfn, pages;
902             pfn = bm->cur.zone->start_pfn + bm->cur.node_pfn + bit;
904             return pfn;
1055         unsigned long pfn;
1060         for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) {
1061             if (pfn_valid(pfn)) {
1068                 mem_bm_set_bit_check(bm, pfn);
1169     unsigned long pfn;
1177         pfn = memory_bm_next_pfn(bm);
1178         while (pfn != BM_END_OF_MAP) {
1179             if (pfn_valid(pfn)) {
1180                 clear_or_poison_free_page(pfn_to_page(pfn));
1183             pfn = memory_bm_next_pfn(bm);
1236 static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn)
1240     if (!pfn_valid(pfn)) {
1244     page = pfn_to_online_page(pfn);
1276         unsigned long pfn, max_zone_pfn;
1284         for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) {
1285             if (saveable_highmem_page(zone, pfn)) {
1309 static struct page *saveable_page(struct zone *zone, unsigned long pfn)
1313     if (!pfn_valid(pfn)) {
1317     page = pfn_to_online_page(pfn);
1332     if (PageReserved(page) && (!kernel_page_present(page) || pfn_is_nosave(pfn))) {
1349     unsigned long pfn, max_zone_pfn;
1360         for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) {
1361             if (saveable_page(zone, pfn)) {
1402 static inline struct page *page_is_saveable(struct zone *zone, unsigned long pfn)
1404     return is_highmem(zone) ? saveable_highmem_page(zone, pfn) : saveable_page(zone, pfn);
1436 #define page_is_saveable(zone, pfn) saveable_page(zone, pfn)
1447     unsigned long pfn;
1455         for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) {
1456             if (page_is_saveable(zone, pfn)) {
1457                 memory_bm_set_bit(orig_bm, pfn);
1464         pfn = memory_bm_next_pfn(orig_bm);
1465         if (unlikely(pfn == BM_END_OF_MAP)) {
1468         copy_data_page(memory_bm_next_pfn(copy_bm), pfn);
1668         unsigned long pfn = memory_bm_next_pfn(&copy_bm);
1669         struct page *page = pfn_to_page(pfn);
1684         memory_bm_clear_bit(&copy_bm, pfn);
2204     unsigned long pfn;
2207     pfn = memory_bm_next_pfn(src);
2208     while (pfn != BM_END_OF_MAP) {
2209         memory_bm_set_bit(dst, pfn);
2210         pfn = memory_bm_next_pfn(src);
2222     unsigned long pfn;
2226     pfn = memory_bm_next_pfn(free_pages_map);
2227     while (pfn != BM_END_OF_MAP) {
2229         pfn = memory_bm_next_pfn(free_pages_map);
2324     unsigned long pfn;
2328     pfn = memory_bm_next_pfn(bm);
2329     while (pfn != BM_END_OF_MAP) {
2330         if (PageHighMem(pfn_to_page(pfn))) {
2334         pfn = memory_bm_next_pfn(bm);
2618     unsigned long pfn = memory_bm_next_pfn(bm);
2619     if (pfn == BM_END_OF_MAP) {
2623     page = pfn_to_page(pfn);