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Lines Matching refs:si

127 static int __try_to_reclaim_swap(struct swap_info_struct *si,  in __try_to_reclaim_swap()  argument
130 swp_entry_t entry = swp_entry(si->type, offset); in __try_to_reclaim_swap()
171 static int discard_swap(struct swap_info_struct *si) in discard_swap() argument
179 se = first_se(si); in discard_swap()
183 err = blkdev_issue_discard(si->bdev, start_block, in discard_swap()
194 err = blkdev_issue_discard(si->bdev, start_block, in discard_swap()
241 static void discard_swap_cluster(struct swap_info_struct *si, in discard_swap_cluster() argument
244 struct swap_extent *se = offset_to_swap_extent(si, start_page); in discard_swap_cluster()
258 if (blkdev_issue_discard(si->bdev, start_block, in discard_swap_cluster()
351 static inline struct swap_cluster_info *lock_cluster(struct swap_info_struct *si, in lock_cluster() argument
356 ci = si->cluster_info; in lock_cluster()
375 struct swap_info_struct *si, unsigned long offset) in lock_cluster_or_swap_info() argument
380 ci = lock_cluster(si, offset); in lock_cluster_or_swap_info()
383 spin_lock(&si->lock); in lock_cluster_or_swap_info()
388 static inline void unlock_cluster_or_swap_info(struct swap_info_struct *si, in unlock_cluster_or_swap_info() argument
394 spin_unlock(&si->lock); in unlock_cluster_or_swap_info()
453 static void swap_cluster_schedule_discard(struct swap_info_struct *si, in swap_cluster_schedule_discard() argument
462 memset(si->swap_map + idx * SWAPFILE_CLUSTER, in swap_cluster_schedule_discard()
465 cluster_list_add_tail(&si->discard_clusters, si->cluster_info, idx); in swap_cluster_schedule_discard()
467 schedule_work(&si->discard_work); in swap_cluster_schedule_discard()
470 static void __free_cluster(struct swap_info_struct *si, unsigned long idx) in __free_cluster() argument
472 struct swap_cluster_info *ci = si->cluster_info; in __free_cluster()
475 cluster_list_add_tail(&si->free_clusters, ci, idx); in __free_cluster()
482 static void swap_do_scheduled_discard(struct swap_info_struct *si) in swap_do_scheduled_discard() argument
487 info = si->cluster_info; in swap_do_scheduled_discard()
489 while (!cluster_list_empty(&si->discard_clusters)) { in swap_do_scheduled_discard()
490 idx = cluster_list_del_first(&si->discard_clusters, info); in swap_do_scheduled_discard()
491 spin_unlock(&si->lock); in swap_do_scheduled_discard()
493 discard_swap_cluster(si, idx * SWAPFILE_CLUSTER, in swap_do_scheduled_discard()
496 spin_lock(&si->lock); in swap_do_scheduled_discard()
497 ci = lock_cluster(si, idx * SWAPFILE_CLUSTER); in swap_do_scheduled_discard()
498 __free_cluster(si, idx); in swap_do_scheduled_discard()
499 memset(si->swap_map + idx * SWAPFILE_CLUSTER, in swap_do_scheduled_discard()
507 struct swap_info_struct *si; in swap_discard_work() local
509 si = container_of(work, struct swap_info_struct, discard_work); in swap_discard_work()
511 spin_lock(&si->lock); in swap_discard_work()
512 swap_do_scheduled_discard(si); in swap_discard_work()
513 spin_unlock(&si->lock); in swap_discard_work()
516 static void alloc_cluster(struct swap_info_struct *si, unsigned long idx) in alloc_cluster() argument
518 struct swap_cluster_info *ci = si->cluster_info; in alloc_cluster()
520 VM_BUG_ON(cluster_list_first(&si->free_clusters) != idx); in alloc_cluster()
521 cluster_list_del_first(&si->free_clusters, ci); in alloc_cluster()
525 static void free_cluster(struct swap_info_struct *si, unsigned long idx) in free_cluster() argument
527 struct swap_cluster_info *ci = si->cluster_info + idx; in free_cluster()
535 if ((si->flags & (SWP_WRITEOK | SWP_PAGE_DISCARD)) == in free_cluster()
537 swap_cluster_schedule_discard(si, idx); in free_cluster()
541 __free_cluster(si, idx); in free_cluster()
589 scan_swap_map_ssd_cluster_conflict(struct swap_info_struct *si, in scan_swap_map_ssd_cluster_conflict() argument
596 conflict = !cluster_list_empty(&si->free_clusters) && in scan_swap_map_ssd_cluster_conflict()
597 offset != cluster_list_first(&si->free_clusters) && in scan_swap_map_ssd_cluster_conflict()
598 cluster_is_free(&si->cluster_info[offset]); in scan_swap_map_ssd_cluster_conflict()
603 percpu_cluster = this_cpu_ptr(si->percpu_cluster); in scan_swap_map_ssd_cluster_conflict()
612 static bool scan_swap_map_try_ssd_cluster(struct swap_info_struct *si, in scan_swap_map_try_ssd_cluster() argument
620 cluster = this_cpu_ptr(si->percpu_cluster); in scan_swap_map_try_ssd_cluster()
622 if (!cluster_list_empty(&si->free_clusters)) { in scan_swap_map_try_ssd_cluster()
623 cluster->index = si->free_clusters.head; in scan_swap_map_try_ssd_cluster()
626 } else if (!cluster_list_empty(&si->discard_clusters)) { in scan_swap_map_try_ssd_cluster()
632 swap_do_scheduled_discard(si); in scan_swap_map_try_ssd_cluster()
633 *scan_base = this_cpu_read(*si->cluster_next_cpu); in scan_swap_map_try_ssd_cluster()
645 max = min_t(unsigned long, si->max, in scan_swap_map_try_ssd_cluster()
648 ci = lock_cluster(si, tmp); in scan_swap_map_try_ssd_cluster()
650 if (!si->swap_map[tmp]) in scan_swap_map_try_ssd_cluster()
681 static void swap_range_alloc(struct swap_info_struct *si, unsigned long offset, in swap_range_alloc() argument
686 if (offset == si->lowest_bit) in swap_range_alloc()
687 si->lowest_bit += nr_entries; in swap_range_alloc()
688 if (end == si->highest_bit) in swap_range_alloc()
689 WRITE_ONCE(si->highest_bit, si->highest_bit - nr_entries); in swap_range_alloc()
690 si->inuse_pages += nr_entries; in swap_range_alloc()
691 if (si->inuse_pages == si->pages) { in swap_range_alloc()
692 si->lowest_bit = si->max; in swap_range_alloc()
693 si->highest_bit = 0; in swap_range_alloc()
694 del_from_avail_list(si); in swap_range_alloc()
710 static void swap_range_free(struct swap_info_struct *si, unsigned long offset, in swap_range_free() argument
717 if (offset < si->lowest_bit) in swap_range_free()
718 si->lowest_bit = offset; in swap_range_free()
719 if (end > si->highest_bit) { in swap_range_free()
720 bool was_full = !si->highest_bit; in swap_range_free()
722 WRITE_ONCE(si->highest_bit, end); in swap_range_free()
723 if (was_full && (si->flags & SWP_WRITEOK)) in swap_range_free()
724 add_to_avail_list(si); in swap_range_free()
727 si->inuse_pages -= nr_entries; in swap_range_free()
728 if (si->flags & SWP_BLKDEV) in swap_range_free()
730 si->bdev->bd_disk->fops->swap_slot_free_notify; in swap_range_free()
734 arch_swap_invalidate_page(si->type, offset); in swap_range_free()
735 frontswap_invalidate_page(si->type, offset); in swap_range_free()
737 swap_slot_free_notify(si->bdev, offset); in swap_range_free()
740 clear_shadow_from_swap_cache(si->type, begin, end); in swap_range_free()
743 static void set_cluster_next(struct swap_info_struct *si, unsigned long next) in set_cluster_next() argument
747 if (!(si->flags & SWP_SOLIDSTATE)) { in set_cluster_next()
748 si->cluster_next = next; in set_cluster_next()
752 prev = this_cpu_read(*si->cluster_next_cpu); in set_cluster_next()
761 if (si->highest_bit <= si->lowest_bit) in set_cluster_next()
763 next = si->lowest_bit + in set_cluster_next()
764 prandom_u32_max(si->highest_bit - si->lowest_bit + 1); in set_cluster_next()
766 next = max_t(unsigned int, next, si->lowest_bit); in set_cluster_next()
768 this_cpu_write(*si->cluster_next_cpu, next); in set_cluster_next()
771 static int scan_swap_map_slots(struct swap_info_struct *si, in scan_swap_map_slots() argument
794 si->flags += SWP_SCANNING; in scan_swap_map_slots()
800 if (si->flags & SWP_SOLIDSTATE) in scan_swap_map_slots()
801 scan_base = this_cpu_read(*si->cluster_next_cpu); in scan_swap_map_slots()
803 scan_base = si->cluster_next; in scan_swap_map_slots()
807 if (si->cluster_info) { in scan_swap_map_slots()
808 if (!scan_swap_map_try_ssd_cluster(si, &offset, &scan_base)) in scan_swap_map_slots()
810 } else if (unlikely(!si->cluster_nr--)) { in scan_swap_map_slots()
811 if (si->pages - si->inuse_pages < SWAPFILE_CLUSTER) { in scan_swap_map_slots()
812 si->cluster_nr = SWAPFILE_CLUSTER - 1; in scan_swap_map_slots()
816 spin_unlock(&si->lock); in scan_swap_map_slots()
824 scan_base = offset = si->lowest_bit; in scan_swap_map_slots()
828 for (; last_in_cluster <= si->highest_bit; offset++) { in scan_swap_map_slots()
829 if (si->swap_map[offset]) in scan_swap_map_slots()
832 spin_lock(&si->lock); in scan_swap_map_slots()
834 si->cluster_next = offset; in scan_swap_map_slots()
835 si->cluster_nr = SWAPFILE_CLUSTER - 1; in scan_swap_map_slots()
845 spin_lock(&si->lock); in scan_swap_map_slots()
846 si->cluster_nr = SWAPFILE_CLUSTER - 1; in scan_swap_map_slots()
850 if (si->cluster_info) { in scan_swap_map_slots()
851 while (scan_swap_map_ssd_cluster_conflict(si, offset)) { in scan_swap_map_slots()
855 if (!scan_swap_map_try_ssd_cluster(si, &offset, in scan_swap_map_slots()
860 if (!(si->flags & SWP_WRITEOK)) in scan_swap_map_slots()
862 if (!si->highest_bit) in scan_swap_map_slots()
864 if (offset > si->highest_bit) in scan_swap_map_slots()
865 scan_base = offset = si->lowest_bit; in scan_swap_map_slots()
867 ci = lock_cluster(si, offset); in scan_swap_map_slots()
869 if (vm_swap_full() && si->swap_map[offset] == SWAP_HAS_CACHE) { in scan_swap_map_slots()
872 spin_unlock(&si->lock); in scan_swap_map_slots()
873 swap_was_freed = __try_to_reclaim_swap(si, offset, TTRS_ANYWAY); in scan_swap_map_slots()
874 spin_lock(&si->lock); in scan_swap_map_slots()
881 if (si->swap_map[offset]) { in scan_swap_map_slots()
888 WRITE_ONCE(si->swap_map[offset], usage); in scan_swap_map_slots()
889 inc_cluster_info_page(si, si->cluster_info, offset); in scan_swap_map_slots()
892 swap_range_alloc(si, offset, 1); in scan_swap_map_slots()
893 slots[n_ret++] = swp_entry(si->type, offset); in scan_swap_map_slots()
896 if ((n_ret == nr) || (offset >= si->highest_bit)) in scan_swap_map_slots()
905 spin_unlock(&si->lock); in scan_swap_map_slots()
907 spin_lock(&si->lock); in scan_swap_map_slots()
912 if (si->cluster_info) { in scan_swap_map_slots()
913 if (scan_swap_map_try_ssd_cluster(si, &offset, &scan_base)) in scan_swap_map_slots()
915 } else if (si->cluster_nr && !si->swap_map[++offset]) { in scan_swap_map_slots()
917 --si->cluster_nr; in scan_swap_map_slots()
932 scan_limit = si->highest_bit; in scan_swap_map_slots()
935 if (!si->swap_map[offset]) in scan_swap_map_slots()
941 set_cluster_next(si, offset + 1); in scan_swap_map_slots()
942 si->flags -= SWP_SCANNING; in scan_swap_map_slots()
946 spin_unlock(&si->lock); in scan_swap_map_slots()
947 while (++offset <= READ_ONCE(si->highest_bit)) { in scan_swap_map_slots()
948 if (data_race(!si->swap_map[offset])) { in scan_swap_map_slots()
949 spin_lock(&si->lock); in scan_swap_map_slots()
953 READ_ONCE(si->swap_map[offset]) == SWAP_HAS_CACHE) { in scan_swap_map_slots()
954 spin_lock(&si->lock); in scan_swap_map_slots()
963 offset = si->lowest_bit; in scan_swap_map_slots()
965 if (data_race(!si->swap_map[offset])) { in scan_swap_map_slots()
966 spin_lock(&si->lock); in scan_swap_map_slots()
970 READ_ONCE(si->swap_map[offset]) == SWAP_HAS_CACHE) { in scan_swap_map_slots()
971 spin_lock(&si->lock); in scan_swap_map_slots()
981 spin_lock(&si->lock); in scan_swap_map_slots()
984 si->flags -= SWP_SCANNING; in scan_swap_map_slots()
988 static int swap_alloc_cluster(struct swap_info_struct *si, swp_entry_t *slot) in swap_alloc_cluster() argument
1004 if (cluster_list_empty(&si->free_clusters)) in swap_alloc_cluster()
1007 idx = cluster_list_first(&si->free_clusters); in swap_alloc_cluster()
1009 ci = lock_cluster(si, offset); in swap_alloc_cluster()
1010 alloc_cluster(si, idx); in swap_alloc_cluster()
1013 map = si->swap_map + offset; in swap_alloc_cluster()
1017 swap_range_alloc(si, offset, SWAPFILE_CLUSTER); in swap_alloc_cluster()
1018 *slot = swp_entry(si->type, offset); in swap_alloc_cluster()
1023 static void swap_free_cluster(struct swap_info_struct *si, unsigned long idx) in swap_free_cluster() argument
1028 ci = lock_cluster(si, offset); in swap_free_cluster()
1029 memset(si->swap_map + offset, 0, SWAPFILE_CLUSTER); in swap_free_cluster()
1031 free_cluster(si, idx); in swap_free_cluster()
1033 swap_range_free(si, offset, SWAPFILE_CLUSTER); in swap_free_cluster()
1036 static unsigned long scan_swap_map(struct swap_info_struct *si, in scan_swap_map() argument
1042 n_ret = scan_swap_map_slots(si, usage, 1, &entry); in scan_swap_map()
1054 struct swap_info_struct *si, *next; in get_swap_pages() local
1076 plist_for_each_entry_safe(si, next, &swap_avail_heads[node], avail_lists[node]) { in get_swap_pages()
1078 plist_requeue(&si->avail_lists[node], &swap_avail_heads[node]); in get_swap_pages()
1080 spin_lock(&si->lock); in get_swap_pages()
1081 if (!si->highest_bit || !(si->flags & SWP_WRITEOK)) { in get_swap_pages()
1083 if (plist_node_empty(&si->avail_lists[node])) { in get_swap_pages()
1084 spin_unlock(&si->lock); in get_swap_pages()
1087 WARN(!si->highest_bit, in get_swap_pages()
1089 si->type); in get_swap_pages()
1090 WARN(!(si->flags & SWP_WRITEOK), in get_swap_pages()
1092 si->type); in get_swap_pages()
1093 __del_from_avail_list(si); in get_swap_pages()
1094 spin_unlock(&si->lock); in get_swap_pages()
1098 if (si->flags & SWP_BLKDEV) in get_swap_pages()
1099 n_ret = swap_alloc_cluster(si, swp_entries); in get_swap_pages()
1101 n_ret = scan_swap_map_slots(si, SWAP_HAS_CACHE, in get_swap_pages()
1103 spin_unlock(&si->lock); in get_swap_pages()
1107 si->type); in get_swap_pages()
1139 struct swap_info_struct *si = swap_type_to_swap_info(type); in get_swap_page_of_type() local
1142 if (!si) in get_swap_page_of_type()
1145 spin_lock(&si->lock); in get_swap_page_of_type()
1146 if (si->flags & SWP_WRITEOK) { in get_swap_page_of_type()
1148 offset = scan_swap_map(si, 1); in get_swap_page_of_type()
1151 spin_unlock(&si->lock); in get_swap_page_of_type()
1155 spin_unlock(&si->lock); in get_swap_page_of_type()
1309 struct swap_info_struct *si; in get_swap_device() local
1314 si = swp_swap_info(entry); in get_swap_device()
1315 if (!si) in get_swap_device()
1319 if (data_race(!(si->flags & SWP_VALID))) in get_swap_device()
1322 if (offset >= si->max) in get_swap_device()
1325 return si; in get_swap_device()
1389 struct swap_info_struct *si; in put_swap_page() local
1395 si = _swap_info_get(entry); in put_swap_page()
1396 if (!si) in put_swap_page()
1399 ci = lock_cluster_or_swap_info(si, offset); in put_swap_page()
1402 map = si->swap_map + offset; in put_swap_page()
1411 unlock_cluster_or_swap_info(si, ci); in put_swap_page()
1412 spin_lock(&si->lock); in put_swap_page()
1414 swap_free_cluster(si, idx); in put_swap_page()
1415 spin_unlock(&si->lock); in put_swap_page()
1420 if (!__swap_entry_free_locked(si, offset + i, SWAP_HAS_CACHE)) { in put_swap_page()
1421 unlock_cluster_or_swap_info(si, ci); in put_swap_page()
1425 lock_cluster_or_swap_info(si, offset); in put_swap_page()
1428 unlock_cluster_or_swap_info(si, ci); in put_swap_page()
1434 struct swap_info_struct *si; in split_swap_cluster() local
1438 si = _swap_info_get(entry); in split_swap_cluster()
1439 if (!si) in split_swap_cluster()
1441 ci = lock_cluster(si, offset); in split_swap_cluster()
1509 struct swap_info_struct *si; in __swap_count() local
1513 si = get_swap_device(entry); in __swap_count()
1514 if (si) { in __swap_count()
1515 count = swap_count(si->swap_map[offset]); in __swap_count()
1516 put_swap_device(si); in __swap_count()
1521 static int swap_swapcount(struct swap_info_struct *si, swp_entry_t entry) in swap_swapcount() argument
1527 ci = lock_cluster_or_swap_info(si, offset); in swap_swapcount()
1528 count = swap_count(si->swap_map[offset]); in swap_swapcount()
1529 unlock_cluster_or_swap_info(si, ci); in swap_swapcount()
1541 struct swap_info_struct *si; in __swp_swapcount() local
1543 si = get_swap_device(entry); in __swp_swapcount()
1544 if (si) { in __swp_swapcount()
1545 count = swap_swapcount(si, entry); in __swp_swapcount()
1546 put_swap_device(si); in __swp_swapcount()
1597 static bool swap_page_trans_huge_swapped(struct swap_info_struct *si, in swap_page_trans_huge_swapped() argument
1601 unsigned char *map = si->swap_map; in swap_page_trans_huge_swapped()
1607 ci = lock_cluster_or_swap_info(si, offset); in swap_page_trans_huge_swapped()
1620 unlock_cluster_or_swap_info(si, ci); in swap_page_trans_huge_swapped()
1627 struct swap_info_struct *si; in page_swapped() local
1634 si = _swap_info_get(entry); in page_swapped()
1635 if (si) in page_swapped()
1636 return swap_page_trans_huge_swapped(si, entry); in page_swapped()
1645 struct swap_info_struct *si; in page_trans_huge_map_swapcount() local
1669 si = _swap_info_get(entry); in page_trans_huge_map_swapcount()
1670 if (si) { in page_trans_huge_map_swapcount()
1671 map = si->swap_map; in page_trans_huge_map_swapcount()
1676 ci = lock_cluster(si, offset); in page_trans_huge_map_swapcount()
1871 struct swap_info_struct *si = swap_type_to_swap_info(type); in swapdev_block() local
1873 if (!si || !(si->flags & SWP_WRITEOK)) in swapdev_block()
1963 struct swap_info_struct *si; in unuse_pte_range() local
1968 si = swap_info[type]; in unuse_pte_range()
1981 if (frontswap && !frontswap_test(si, offset)) in unuse_pte_range()
1985 swap_map = &si->swap_map[offset]; in unuse_pte_range()
2142 static unsigned int find_next_to_unuse(struct swap_info_struct *si, in find_next_to_unuse() argument
2154 for (i = prev + 1; i < si->max; i++) { in find_next_to_unuse()
2155 count = READ_ONCE(si->swap_map[i]); in find_next_to_unuse()
2157 if (!frontswap || frontswap_test(si, i)) in find_next_to_unuse()
2163 if (i == si->max) in find_next_to_unuse()
2180 struct swap_info_struct *si = swap_info[type]; in try_to_unuse() local
2185 if (!READ_ONCE(si->inuse_pages)) in try_to_unuse()
2201 while (READ_ONCE(si->inuse_pages) && in try_to_unuse()
2230 while (READ_ONCE(si->inuse_pages) && in try_to_unuse()
2232 (i = find_next_to_unuse(si, i, frontswap)) != 0) { in try_to_unuse()
2272 if (READ_ONCE(si->inuse_pages)) { in try_to_unuse()
2617 struct swap_info_struct *si = p; in SYSCALL_DEFINE1() local
2620 plist_for_each_entry_continue(si, &swap_active_head, list) { in SYSCALL_DEFINE1()
2621 si->prio++; in SYSCALL_DEFINE1()
2622 si->list.prio--; in SYSCALL_DEFINE1()
2624 if (si->avail_lists[nid].prio != 1) in SYSCALL_DEFINE1()
2625 si->avail_lists[nid].prio--; in SYSCALL_DEFINE1()
2764 struct swap_info_struct *si; in swap_start() local
2773 for (type = 0; (si = swap_type_to_swap_info(type)); type++) { in swap_start()
2774 if (!(si->flags & SWP_USED) || !si->swap_map) in swap_start()
2777 return si; in swap_start()
2785 struct swap_info_struct *si = v; in swap_next() local
2791 type = si->type + 1; in swap_next()
2794 for (; (si = swap_type_to_swap_info(type)); type++) { in swap_next()
2795 if (!(si->flags & SWP_USED) || !si->swap_map) in swap_next()
2797 return si; in swap_next()
2810 struct swap_info_struct *si = v; in swap_show() local
2815 if (si == SEQ_START_TOKEN) { in swap_show()
2820 bytes = si->pages << (PAGE_SHIFT - 10); in swap_show()
2821 inuse = si->inuse_pages << (PAGE_SHIFT - 10); in swap_show()
2823 file = si->swap_file; in swap_show()
2831 si->prio); in swap_show()
3155 static bool swap_discardable(struct swap_info_struct *si) in swap_discardable() argument
3157 struct request_queue *q = bdev_get_queue(si->bdev); in swap_discardable()
3435 struct swap_info_struct *si = swap_info[type]; in si_swapinfo() local
3437 if ((si->flags & SWP_USED) && !(si->flags & SWP_WRITEOK)) in si_swapinfo()
3438 nr_to_be_unused += si->inuse_pages; in si_swapinfo()
3454 struct swap_info_struct *si = swap_info[type]; in free_swap_is_low() local
3456 if ((si->flags & SWP_USED) && !(si->flags & SWP_WRITEOK)) in free_swap_is_low()
3457 nr_to_be_unused += si->inuse_pages; in free_swap_is_low()
3624 struct swap_info_struct *si; in add_swap_count_continuation() local
3639 si = get_swap_device(entry); in add_swap_count_continuation()
3640 if (!si) { in add_swap_count_continuation()
3647 spin_lock(&si->lock); in add_swap_count_continuation()
3651 ci = lock_cluster(si, offset); in add_swap_count_continuation()
3653 count = si->swap_map[offset] & ~SWAP_HAS_CACHE; in add_swap_count_continuation()
3674 head = vmalloc_to_page(si->swap_map + offset); in add_swap_count_continuation()
3677 spin_lock(&si->cont_lock); in add_swap_count_continuation()
3686 si->flags |= SWP_CONTINUED; in add_swap_count_continuation()
3714 spin_unlock(&si->cont_lock); in add_swap_count_continuation()
3717 spin_unlock(&si->lock); in add_swap_count_continuation()
3718 put_swap_device(si); in add_swap_count_continuation()
3734 static bool swap_count_continued(struct swap_info_struct *si, in swap_count_continued() argument
3742 head = vmalloc_to_page(si->swap_map + offset); in swap_count_continued()
3748 spin_lock(&si->cont_lock); in swap_count_continued()
3810 spin_unlock(&si->cont_lock); in swap_count_continued()
3818 static void free_swap_count_continuations(struct swap_info_struct *si) in free_swap_count_continuations() argument
3822 for (offset = 0; offset < si->max; offset += PAGE_SIZE) { in free_swap_count_continuations()
3824 head = vmalloc_to_page(si->swap_map + offset); in free_swap_count_continuations()
3839 struct swap_info_struct *si, *next; in cgroup_throttle_swaprate() local
3856 plist_for_each_entry_safe(si, next, &swap_avail_heads[nid], in cgroup_throttle_swaprate()
3858 if (si->bdev) { in cgroup_throttle_swaprate()
3859 blkcg_schedule_throttle(bdev_get_queue(si->bdev), true); in cgroup_throttle_swaprate()