| /linux/fs/proc/ |
| H A D | internal.h | 186 int mapcount = atomic_read(&page->_mapcount) + 1; in folio_precise_page_mapcount() local
188 if (page_mapcount_is_type(mapcount)) in folio_precise_page_mapcount()
189 mapcount = 0; in folio_precise_page_mapcount()
191 mapcount += folio_entire_mapcount(folio); in folio_precise_page_mapcount()
193 return mapcount; in folio_precise_page_mapcount()
220 int mapcount, entire_mapcount, avg; in folio_average_page_mapcount() local
225 mapcount = folio_large_mapcount(folio); in folio_average_page_mapcount()
226 if (unlikely(mapcount <= 0)) in folio_average_page_mapcount()
229 if (mapcount <= entire_mapcount) in folio_average_page_mapcount()
231 mapcount -= entire_mapcount; in folio_average_page_mapcount()
[all …]
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| H A D | task_mmu.c | 855 * - supports mapcount up to 2^24, or 16M;
924 int mapcount; in smaps_account() local
953 * Treat all non-present entries (where relying on the mapcount and in smaps_account()
957 * Note that it would not be safe to read the mapcount especially for in smaps_account()
967 mapcount = folio_average_page_mapcount(folio); in smaps_account()
972 * We obtain a snapshot of the mapcount. Without holding the folio lock in smaps_account()
974 * mapcount atomically. in smaps_account()
980 mapcount = folio_precise_page_mapcount(folio, page); in smaps_account()
981 exclusive = mapcount < 2; in smaps_account()
984 if (mapcount > in smaps_account()
1039 int mapcount; smaps_pte_entry() local
[all...] |
| /linux/include/trace/events/ |
| H A D | page_ref.h | 23 __field(int, mapcount)
33 __entry->mapcount = atomic_read(&page->_mapcount);
43 __entry->mapcount, __entry->mapping, __entry->mt,
71 __field(int, mapcount)
82 __entry->mapcount = atomic_read(&page->_mapcount);
93 __entry->mapcount, __entry->mapping, __entry->mt,
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| /linux/mm/ |
| H A D | debug.c | 74 int mapcount = atomic_read(&page->_mapcount) + 1; in __dump_folio() local
77 if (page_mapcount_is_type(mapcount)) in __dump_folio()
78 mapcount = 0; in __dump_folio()
81 folio_ref_count(folio), mapcount, mapping, in __dump_folio()
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| H A D | rmap.c | 901 int mapcount; member
924 pra->mapcount--; in folio_referenced_one()
989 pra->mapcount -= nr; in folio_referenced_one()
1010 if (!pra->mapcount) in folio_referenced_one()
1057 .mapcount = folio_mapcount(folio), in folio_referenced()
1069 if (!pra.mapcount) in folio_referenced()
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| H A D | filemap.c | 164 int mapcount = folio_mapcount(folio); in filemap_unaccount_folio() local
166 if (folio_ref_count(folio) >= mapcount + 2) { in filemap_unaccount_folio()
174 folio_ref_sub(folio, mapcount); in filemap_unaccount_folio()
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| H A D | Kconfig | 955 bool "No per-page mapcount (EXPERIMENTAL)"
962 instead: for example, using the average per-page mapcount in such
963 a large allocation instead of the per-page mapcount.
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| /linux/drivers/xen/ |
| H A D | xen-scsiback.c | 466 int mapcount = 0, i, err = 0; in scsiback_gnttab_data_map_list() local
471 if (gnttab_page_cache_get(&info->free_pages, pg + mapcount)) { in scsiback_gnttab_data_map_list()
472 gnttab_page_cache_put(&info->free_pages, pg, mapcount); in scsiback_gnttab_data_map_list()
476 gnttab_set_map_op(&map[mapcount], vaddr_page(pg[mapcount]), in scsiback_gnttab_data_map_list()
478 mapcount++; in scsiback_gnttab_data_map_list()
479 if (mapcount < VSCSI_GRANT_BATCH) in scsiback_gnttab_data_map_list()
481 err = scsiback_gnttab_data_map_batch(map, pg, grant, mapcount); in scsiback_gnttab_data_map_list()
482 pg += mapcount; in scsiback_gnttab_data_map_list()
483 grant += mapcount; in scsiback_gnttab_data_map_list()
[all...] |
| /linux/Documentation/translations/zh_CN/mm/ |
| H A D | page_migration.rst | 80 4. 所有对该页的页表引用都被转换为迁移条目。这就减少了一个页面的mapcount。如果产生的
81 mapcount不是零，那么我们就不迁移该页。所有试图访问该页的用户空间进程现在将等待页
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| /linux/kernel/irq/ |
| H A D | irqdomain.c | 660 domain->mapcount--; in irq_domain_disassociate()
702 domain->mapcount++; in irq_domain_associate_locked()
1326 domain->mapcount++; in irq_domain_insert_irq()
1346 domain->mapcount--; in irq_domain_remove_irq()
2105 seq_printf(m, "%*smapped: %u\n", ind + 1, "", d->mapcount); in irq_domain_debug_show_one()
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| /linux/include/linux/ |
| H A D | mm.h | 1596 int mapcount; in folio_mapcount() local
1599 mapcount = atomic_read(&folio->_mapcount) + 1; in folio_mapcount()
1600 if (page_mapcount_is_type(mapcount)) in folio_mapcount()
1601 mapcount = 0; in folio_mapcount()
1602 return mapcount; in folio_mapcount()
2615 int mapcount = folio_mapcount(folio); in folio_maybe_mapped_shared() local
2619 return mapcount > 1; in folio_maybe_mapped_shared()
2634 if (mapcount <= 1) in folio_maybe_mapped_shared()
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| H A D | page-flags.h | 947 static inline bool page_mapcount_is_type(unsigned int mapcount) in page_mapcount_is_type() argument
949 return page_type_has_type(mapcount - 1); in page_mapcount_is_type()
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| /linux/Documentation/dev-tools/ |
| H A D | kasan.rst | 230 page:ffffea0007d13b00 count:1 mapcount:0 mapping:ffff8801f7001640 index:0x0
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| /linux/Documentation/admin-guide/ |
| H A D | kernel-parameters.txt | 776 mapcount/refcount, memcg_data, etc.).
|