Lines Matching refs:pgdat
1168 static bool skip_throttle_noprogress(pg_data_t *pgdat) in skip_throttle_noprogress() argument
1177 if (pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES) in skip_throttle_noprogress()
1186 struct zone *zone = pgdat->node_zones + i; in skip_throttle_noprogress()
1201 void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason) in reclaim_throttle() argument
1203 wait_queue_head_t *wqh = &pgdat->reclaim_wait[reason]; in reclaim_throttle()
1232 if (atomic_inc_return(&pgdat->nr_writeback_throttled) == 1) { in reclaim_throttle()
1233 WRITE_ONCE(pgdat->nr_reclaim_start, in reclaim_throttle()
1234 node_page_state(pgdat, NR_THROTTLED_WRITTEN)); in reclaim_throttle()
1241 if (skip_throttle_noprogress(pgdat)) { in reclaim_throttle()
1263 atomic_dec(&pgdat->nr_writeback_throttled); in reclaim_throttle()
1265 trace_mm_vmscan_throttled(pgdat->node_id, jiffies_to_usecs(timeout), in reclaim_throttle()
1275 void __acct_reclaim_writeback(pg_data_t *pgdat, struct folio *folio, in __acct_reclaim_writeback() argument
1289 nr_written = node_page_state(pgdat, NR_THROTTLED_WRITTEN) - in __acct_reclaim_writeback()
1290 READ_ONCE(pgdat->nr_reclaim_start); in __acct_reclaim_writeback()
1293 wake_up(&pgdat->reclaim_wait[VMSCAN_THROTTLE_WRITEBACK]); in __acct_reclaim_writeback()
1657 struct pglist_data *pgdat) in demote_folio_list() argument
1659 int target_nid = next_demotion_node(pgdat->node_id); in demote_folio_list()
1681 node_get_allowed_targets(pgdat, &allowed_mask); in demote_folio_list()
1713 struct pglist_data *pgdat, struct scan_control *sc, in shrink_folio_list() argument
1726 do_demote_pass = can_demote(pgdat->node_id, sc); in shrink_folio_list()
1831 test_bit(PGDAT_WRITEBACK, &pgdat->flags)) { in shrink_folio_list()
1995 !test_bit(PGDAT_DIRTY, &pgdat->flags))) { in shrink_folio_list()
2162 nr_reclaimed += demote_folio_list(&demote_folios, pgdat); in shrink_folio_list()
2434 static int too_many_isolated(struct pglist_data *pgdat, int file, in too_many_isolated() argument
2447 inactive = node_page_state(pgdat, NR_INACTIVE_FILE); in too_many_isolated()
2448 isolated = node_page_state(pgdat, NR_ISOLATED_FILE); in too_many_isolated()
2450 inactive = node_page_state(pgdat, NR_INACTIVE_ANON); in too_many_isolated()
2451 isolated = node_page_state(pgdat, NR_ISOLATED_ANON); in too_many_isolated()
2466 wake_throttle_isolated(pgdat); in too_many_isolated()
2566 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in shrink_inactive_list() local
2569 while (unlikely(too_many_isolated(pgdat, file, sc))) { in shrink_inactive_list()
2575 reclaim_throttle(pgdat, VMSCAN_THROTTLE_ISOLATED); in shrink_inactive_list()
2589 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, nr_taken); in shrink_inactive_list()
2601 nr_reclaimed = shrink_folio_list(&folio_list, pgdat, sc, &stat, false); in shrink_inactive_list()
2606 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); in shrink_inactive_list()
2641 reclaim_throttle(pgdat, VMSCAN_THROTTLE_WRITEBACK); in shrink_inactive_list()
2653 trace_mm_vmscan_lru_shrink_inactive(pgdat->node_id, in shrink_inactive_list()
2689 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in shrink_active_list() local
2698 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, nr_taken); in shrink_active_list()
2763 __mod_node_page_state(pgdat, NR_ISOLATED_ANON + file, -nr_taken); in shrink_active_list()
2770 trace_mm_vmscan_lru_shrink_active(pgdat->node_id, nr_taken, nr_activate, in shrink_active_list()
2775 struct pglist_data *pgdat) in reclaim_folio_list() argument
2788 nr_reclaimed = shrink_folio_list(folio_list, pgdat, &sc, &dummy_stat, false); in reclaim_folio_list()
2899 static void prepare_scan_count(pg_data_t *pgdat, struct scan_control *sc) in prepare_scan_count() argument
2907 target_lruvec = mem_cgroup_lruvec(sc->target_mem_cgroup, pgdat); in prepare_scan_count()
2978 free = sum_zone_node_page_state(pgdat->node_id, NR_FREE_PAGES); in prepare_scan_count()
2979 file = node_page_state(pgdat, NR_ACTIVE_FILE) + in prepare_scan_count()
2980 node_page_state(pgdat, NR_INACTIVE_FILE); in prepare_scan_count()
2983 struct zone *zone = &pgdat->node_zones[z]; in prepare_scan_count()
2996 anon = node_page_state(pgdat, NR_INACTIVE_ANON); in prepare_scan_count()
3015 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in get_scan_count() local
3026 if (!sc->may_swap || !can_reclaim_anon_pages(memcg, pgdat->node_id, sc)) { in get_scan_count()
3213 static bool can_age_anon_pages(struct pglist_data *pgdat, in can_age_anon_pages() argument
3221 return can_demote(pgdat->node_id, sc); in can_age_anon_pages()
3269 struct pglist_data *pgdat = NODE_DATA(nid); in get_lruvec() local
3276 if (!lruvec->pgdat) in get_lruvec()
3277 lruvec->pgdat = pgdat; in get_lruvec()
3284 return &pgdat->__lruvec; in get_lruvec()
3290 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in get_swappiness() local
3295 if (!can_demote(pgdat->node_id, sc) && in get_swappiness()
3550 struct pglist_data *pgdat = lruvec_pgdat(walk->lruvec); in should_skip_mm() local
3551 int key = pgdat->node_id % BITS_PER_TYPE(mm->lru_gen.bitmap); in should_skip_mm()
3960 struct pglist_data *pgdat, bool can_swap) in get_pfn_folio() argument
3965 if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat)) in get_pfn_folio()
3969 if (folio_nid(folio) != pgdat->node_id) in get_pfn_folio()
4001 struct pglist_data *pgdat = lruvec_pgdat(walk->lruvec); in walk_pte_range() local
4031 folio = get_pfn_folio(pfn, memcg, pgdat, walk->can_swap); in walk_pte_range()
4069 struct pglist_data *pgdat = lruvec_pgdat(walk->lruvec); in walk_pmd_range_locked() local
4112 folio = get_pfn_folio(pfn, memcg, pgdat, walk->can_swap); in walk_pmd_range_locked()
4181 struct pglist_data *pgdat = lruvec_pgdat(walk->lruvec); in walk_pmd_range() local
4191 if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat)) in walk_pmd_range()
4314 static struct lru_gen_mm_walk *set_mm_walk(struct pglist_data *pgdat, bool force_alloc) in set_mm_walk() argument
4318 if (pgdat && current_is_kswapd()) { in set_mm_walk()
4321 walk = &pgdat->mm_walk; in set_mm_walk()
4536 static void set_initial_priority(struct pglist_data *pgdat, struct scan_control *sc) in set_initial_priority() argument
4548 reclaimable = node_page_state(pgdat, NR_INACTIVE_FILE); in set_initial_priority()
4549 if (can_reclaim_anon_pages(NULL, pgdat->node_id, sc)) in set_initial_priority()
4550 reclaimable += node_page_state(pgdat, NR_INACTIVE_ANON); in set_initial_priority()
4611 static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc) in lru_gen_age_node() argument
4619 set_initial_priority(pgdat, sc); in lru_gen_age_node()
4623 struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat); in lru_gen_age_node()
4671 struct pglist_data *pgdat = folio_pgdat(folio); in lru_gen_look_around() local
4672 struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat); in lru_gen_look_around()
4722 folio = get_pfn_folio(pfn, memcg, pgdat, can_swap); in lru_gen_look_around()
4785 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in lru_gen_rotate_memcg() local
4787 spin_lock_irqsave(&pgdat->memcg_lru.lock, flags); in lru_gen_rotate_memcg()
4800 new = get_memcg_gen(pgdat->memcg_lru.seq); in lru_gen_rotate_memcg()
4802 new = get_memcg_gen(pgdat->memcg_lru.seq + 1); in lru_gen_rotate_memcg()
4812 hlist_nulls_add_head_rcu(&lruvec->lrugen.list, &pgdat->memcg_lru.fifo[new][bin]); in lru_gen_rotate_memcg()
4814 hlist_nulls_add_tail_rcu(&lruvec->lrugen.list, &pgdat->memcg_lru.fifo[new][bin]); in lru_gen_rotate_memcg()
4816 pgdat->memcg_lru.nr_memcgs[old]--; in lru_gen_rotate_memcg()
4817 pgdat->memcg_lru.nr_memcgs[new]++; in lru_gen_rotate_memcg()
4819 if (!pgdat->memcg_lru.nr_memcgs[old] && old == get_memcg_gen(pgdat->memcg_lru.seq)) in lru_gen_rotate_memcg()
4820 WRITE_ONCE(pgdat->memcg_lru.seq, pgdat->memcg_lru.seq + 1); in lru_gen_rotate_memcg()
4822 spin_unlock_irqrestore(&pgdat->memcg_lru.lock, flags); in lru_gen_rotate_memcg()
4832 struct pglist_data *pgdat = NODE_DATA(nid); in lru_gen_online_memcg() local
4835 spin_lock_irq(&pgdat->memcg_lru.lock); in lru_gen_online_memcg()
4839 gen = get_memcg_gen(pgdat->memcg_lru.seq); in lru_gen_online_memcg()
4843 hlist_nulls_add_tail_rcu(&lruvec->lrugen.list, &pgdat->memcg_lru.fifo[gen][bin]); in lru_gen_online_memcg()
4844 pgdat->memcg_lru.nr_memcgs[gen]++; in lru_gen_online_memcg()
4846 spin_unlock_irq(&pgdat->memcg_lru.lock); in lru_gen_online_memcg()
4867 struct pglist_data *pgdat = NODE_DATA(nid); in lru_gen_release_memcg() local
4870 spin_lock_irq(&pgdat->memcg_lru.lock); in lru_gen_release_memcg()
4878 pgdat->memcg_lru.nr_memcgs[gen]--; in lru_gen_release_memcg()
4880 if (!pgdat->memcg_lru.nr_memcgs[gen] && gen == get_memcg_gen(pgdat->memcg_lru.seq)) in lru_gen_release_memcg()
4881 WRITE_ONCE(pgdat->memcg_lru.seq, pgdat->memcg_lru.seq + 1); in lru_gen_release_memcg()
4883 spin_unlock_irq(&pgdat->memcg_lru.lock); in lru_gen_release_memcg()
5192 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in evict_folios() local
5208 reclaimed = shrink_folio_list(&list, pgdat, sc, &stat, false); in evict_folios()
5433 struct pglist_data *pgdat = lruvec_pgdat(lruvec); in shrink_one() local
5449 shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, sc->priority); in shrink_one()
5470 static void shrink_many(struct pglist_data *pgdat, struct scan_control *sc) in shrink_many() argument
5481 gen = get_memcg_gen(READ_ONCE(pgdat->memcg_lru.seq)); in shrink_many()
5489 hlist_nulls_for_each_entry_rcu(lrugen, pos, &pgdat->memcg_lru.fifo[gen][bin], list) { in shrink_many()
5563 static void shrink_many(struct pglist_data *pgdat, struct scan_control *sc) in shrink_many() argument
5575 static void lru_gen_shrink_node(struct pglist_data *pgdat, struct scan_control *sc) in lru_gen_shrink_node() argument
5594 set_mm_walk(pgdat, sc->proactive); in lru_gen_shrink_node()
5596 set_initial_priority(pgdat, sc); in lru_gen_shrink_node()
5602 shrink_one(&pgdat->__lruvec, sc); in lru_gen_shrink_node()
5604 shrink_many(pgdat, sc); in lru_gen_shrink_node()
5614 pgdat->kswapd_failures = 0; in lru_gen_shrink_node()
6218 void lru_gen_init_pgdat(struct pglist_data *pgdat) in lru_gen_init_pgdat() argument
6222 spin_lock_init(&pgdat->memcg_lru.lock); in lru_gen_init_pgdat()
6226 INIT_HLIST_NULLS_HEAD(&pgdat->memcg_lru.fifo[i][j], i); in lru_gen_init_pgdat()
6277 static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc) in lru_gen_age_node() argument
6285 static void lru_gen_shrink_node(struct pglist_data *pgdat, struct scan_control *sc) in lru_gen_shrink_node() argument
6427 static inline bool should_continue_reclaim(struct pglist_data *pgdat, in should_continue_reclaim() argument
6454 struct zone *zone = &pgdat->node_zones[z]; in should_continue_reclaim()
6472 inactive_lru_pages = node_page_state(pgdat, NR_INACTIVE_FILE); in should_continue_reclaim()
6473 if (can_reclaim_anon_pages(NULL, pgdat->node_id, sc)) in should_continue_reclaim()
6474 inactive_lru_pages += node_page_state(pgdat, NR_INACTIVE_ANON); in should_continue_reclaim()
6479 static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc) in shrink_node_memcgs() argument
6486 struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat); in shrink_node_memcgs()
6525 shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, in shrink_node_memcgs()
6537 static void shrink_node(pg_data_t *pgdat, struct scan_control *sc) in shrink_node() argument
6544 lru_gen_shrink_node(pgdat, sc); in shrink_node()
6548 target_lruvec = mem_cgroup_lruvec(sc->target_mem_cgroup, pgdat); in shrink_node()
6556 prepare_scan_count(pgdat, sc); in shrink_node()
6558 shrink_node_memcgs(pgdat, sc); in shrink_node()
6591 set_bit(PGDAT_WRITEBACK, &pgdat->flags); in shrink_node()
6595 set_bit(PGDAT_DIRTY, &pgdat->flags); in shrink_node()
6605 reclaim_throttle(pgdat, VMSCAN_THROTTLE_WRITEBACK); in shrink_node()
6633 reclaim_throttle(pgdat, VMSCAN_THROTTLE_CONGESTED); in shrink_node()
6635 if (should_continue_reclaim(pgdat, nr_node_reclaimed, sc)) in shrink_node()
6645 pgdat->kswapd_failures = 0; in shrink_node()
6683 static void consider_reclaim_throttle(pg_data_t *pgdat, struct scan_control *sc) in consider_reclaim_throttle() argument
6692 wqh = &pgdat->reclaim_wait[VMSCAN_THROTTLE_NOPROGRESS]; in consider_reclaim_throttle()
6710 reclaim_throttle(pgdat, VMSCAN_THROTTLE_NOPROGRESS); in consider_reclaim_throttle()
6813 static void snapshot_refaults(struct mem_cgroup *target_memcg, pg_data_t *pgdat) in snapshot_refaults() argument
6821 target_lruvec = mem_cgroup_lruvec(target_memcg, pgdat); in snapshot_refaults()
6933 static bool allow_direct_reclaim(pg_data_t *pgdat) in allow_direct_reclaim() argument
6941 if (pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES) in allow_direct_reclaim()
6945 zone = &pgdat->node_zones[i]; in allow_direct_reclaim()
6963 if (!wmark_ok && waitqueue_active(&pgdat->kswapd_wait)) { in allow_direct_reclaim()
6964 if (READ_ONCE(pgdat->kswapd_highest_zoneidx) > ZONE_NORMAL) in allow_direct_reclaim()
6965 WRITE_ONCE(pgdat->kswapd_highest_zoneidx, ZONE_NORMAL); in allow_direct_reclaim()
6967 wake_up_interruptible(&pgdat->kswapd_wait); in allow_direct_reclaim()
6987 pg_data_t *pgdat = NULL; in throttle_direct_reclaim() local
7026 pgdat = zone->zone_pgdat; in throttle_direct_reclaim()
7027 if (allow_direct_reclaim(pgdat)) in throttle_direct_reclaim()
7033 if (!pgdat) in throttle_direct_reclaim()
7048 wait_event_interruptible_timeout(pgdat->pfmemalloc_wait, in throttle_direct_reclaim()
7049 allow_direct_reclaim(pgdat), HZ); in throttle_direct_reclaim()
7053 allow_direct_reclaim(pgdat)); in throttle_direct_reclaim()
7110 pg_data_t *pgdat, in mem_cgroup_shrink_node() argument
7113 struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat); in mem_cgroup_shrink_node()
7187 static void kswapd_age_node(struct pglist_data *pgdat, struct scan_control *sc) in kswapd_age_node() argument
7193 lru_gen_age_node(pgdat, sc); in kswapd_age_node()
7197 if (!can_age_anon_pages(pgdat, sc)) in kswapd_age_node()
7200 lruvec = mem_cgroup_lruvec(NULL, pgdat); in kswapd_age_node()
7206 lruvec = mem_cgroup_lruvec(memcg, pgdat); in kswapd_age_node()
7213 static bool pgdat_watermark_boosted(pg_data_t *pgdat, int highest_zoneidx) in pgdat_watermark_boosted() argument
7226 zone = pgdat->node_zones + i; in pgdat_watermark_boosted()
7241 static bool pgdat_balanced(pg_data_t *pgdat, int order, int highest_zoneidx) in pgdat_balanced() argument
7252 zone = pgdat->node_zones + i; in pgdat_balanced()
7277 static void clear_pgdat_congested(pg_data_t *pgdat) in clear_pgdat_congested() argument
7279 struct lruvec *lruvec = mem_cgroup_lruvec(NULL, pgdat); in clear_pgdat_congested()
7283 clear_bit(PGDAT_DIRTY, &pgdat->flags); in clear_pgdat_congested()
7284 clear_bit(PGDAT_WRITEBACK, &pgdat->flags); in clear_pgdat_congested()
7293 static bool prepare_kswapd_sleep(pg_data_t *pgdat, int order, in prepare_kswapd_sleep() argument
7309 if (waitqueue_active(&pgdat->pfmemalloc_wait)) in prepare_kswapd_sleep()
7310 wake_up_all(&pgdat->pfmemalloc_wait); in prepare_kswapd_sleep()
7313 if (pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES) in prepare_kswapd_sleep()
7316 if (pgdat_balanced(pgdat, order, highest_zoneidx)) { in prepare_kswapd_sleep()
7317 clear_pgdat_congested(pgdat); in prepare_kswapd_sleep()
7332 static bool kswapd_shrink_node(pg_data_t *pgdat, in kswapd_shrink_node() argument
7342 zone = pgdat->node_zones + z; in kswapd_shrink_node()
7353 shrink_node(pgdat, sc); in kswapd_shrink_node()
7371 update_reclaim_active(pg_data_t *pgdat, int highest_zoneidx, bool active) in update_reclaim_active() argument
7377 zone = pgdat->node_zones + i; in update_reclaim_active()
7390 set_reclaim_active(pg_data_t *pgdat, int highest_zoneidx) in set_reclaim_active() argument
7392 update_reclaim_active(pgdat, highest_zoneidx, true); in set_reclaim_active()
7396 clear_reclaim_active(pg_data_t *pgdat, int highest_zoneidx) in clear_reclaim_active() argument
7398 update_reclaim_active(pgdat, highest_zoneidx, false); in clear_reclaim_active()
7414 static int balance_pgdat(pg_data_t *pgdat, int order, int highest_zoneidx) in balance_pgdat() argument
7443 zone = pgdat->node_zones + i; in balance_pgdat()
7453 set_reclaim_active(pgdat, highest_zoneidx); in balance_pgdat()
7475 zone = pgdat->node_zones + i; in balance_pgdat()
7491 balanced = pgdat_balanced(pgdat, sc.order, highest_zoneidx); in balance_pgdat()
7523 kswapd_age_node(pgdat, &sc); in balance_pgdat()
7535 nr_soft_reclaimed = mem_cgroup_soft_limit_reclaim(pgdat, sc.order, in balance_pgdat()
7544 if (kswapd_shrink_node(pgdat, &sc)) in balance_pgdat()
7552 if (waitqueue_active(&pgdat->pfmemalloc_wait) && in balance_pgdat()
7553 allow_direct_reclaim(pgdat)) in balance_pgdat()
7554 wake_up_all(&pgdat->pfmemalloc_wait); in balance_pgdat()
7583 pgdat->kswapd_failures++; in balance_pgdat()
7586 clear_reclaim_active(pgdat, highest_zoneidx); in balance_pgdat()
7597 zone = pgdat->node_zones + i; in balance_pgdat()
7607 wakeup_kcompactd(pgdat, pageblock_order, highest_zoneidx); in balance_pgdat()
7610 snapshot_refaults(NULL, pgdat); in balance_pgdat()
7631 static enum zone_type kswapd_highest_zoneidx(pg_data_t *pgdat, in kswapd_highest_zoneidx() argument
7634 enum zone_type curr_idx = READ_ONCE(pgdat->kswapd_highest_zoneidx); in kswapd_highest_zoneidx()
7639 static void kswapd_try_to_sleep(pg_data_t *pgdat, int alloc_order, int reclaim_order, in kswapd_try_to_sleep() argument
7648 prepare_to_wait(&pgdat->kswapd_wait, &wait, TASK_INTERRUPTIBLE); in kswapd_try_to_sleep()
7657 if (prepare_kswapd_sleep(pgdat, reclaim_order, highest_zoneidx)) { in kswapd_try_to_sleep()
7664 reset_isolation_suitable(pgdat); in kswapd_try_to_sleep()
7670 wakeup_kcompactd(pgdat, alloc_order, highest_zoneidx); in kswapd_try_to_sleep()
7680 WRITE_ONCE(pgdat->kswapd_highest_zoneidx, in kswapd_try_to_sleep()
7681 kswapd_highest_zoneidx(pgdat, in kswapd_try_to_sleep()
7684 if (READ_ONCE(pgdat->kswapd_order) < reclaim_order) in kswapd_try_to_sleep()
7685 WRITE_ONCE(pgdat->kswapd_order, reclaim_order); in kswapd_try_to_sleep()
7688 finish_wait(&pgdat->kswapd_wait, &wait); in kswapd_try_to_sleep()
7689 prepare_to_wait(&pgdat->kswapd_wait, &wait, TASK_INTERRUPTIBLE); in kswapd_try_to_sleep()
7697 prepare_kswapd_sleep(pgdat, reclaim_order, highest_zoneidx)) { in kswapd_try_to_sleep()
7698 trace_mm_vmscan_kswapd_sleep(pgdat->node_id); in kswapd_try_to_sleep()
7708 set_pgdat_percpu_threshold(pgdat, calculate_normal_threshold); in kswapd_try_to_sleep()
7713 set_pgdat_percpu_threshold(pgdat, calculate_pressure_threshold); in kswapd_try_to_sleep()
7720 finish_wait(&pgdat->kswapd_wait, &wait); in kswapd_try_to_sleep()
7740 pg_data_t *pgdat = (pg_data_t *)p; in kswapd() local
7742 const struct cpumask *cpumask = cpumask_of_node(pgdat->node_id); in kswapd()
7762 WRITE_ONCE(pgdat->kswapd_order, 0); in kswapd()
7763 WRITE_ONCE(pgdat->kswapd_highest_zoneidx, MAX_NR_ZONES); in kswapd()
7764 atomic_set(&pgdat->nr_writeback_throttled, 0); in kswapd()
7768 alloc_order = reclaim_order = READ_ONCE(pgdat->kswapd_order); in kswapd()
7769 highest_zoneidx = kswapd_highest_zoneidx(pgdat, in kswapd()
7773 kswapd_try_to_sleep(pgdat, alloc_order, reclaim_order, in kswapd()
7777 alloc_order = READ_ONCE(pgdat->kswapd_order); in kswapd()
7778 highest_zoneidx = kswapd_highest_zoneidx(pgdat, in kswapd()
7780 WRITE_ONCE(pgdat->kswapd_order, 0); in kswapd()
7781 WRITE_ONCE(pgdat->kswapd_highest_zoneidx, MAX_NR_ZONES); in kswapd()
7802 trace_mm_vmscan_kswapd_wake(pgdat->node_id, highest_zoneidx, in kswapd()
7804 reclaim_order = balance_pgdat(pgdat, alloc_order, in kswapd()
7825 pg_data_t *pgdat; in wakeup_kswapd() local
7834 pgdat = zone->zone_pgdat; in wakeup_kswapd()
7835 curr_idx = READ_ONCE(pgdat->kswapd_highest_zoneidx); in wakeup_kswapd()
7838 WRITE_ONCE(pgdat->kswapd_highest_zoneidx, highest_zoneidx); in wakeup_kswapd()
7840 if (READ_ONCE(pgdat->kswapd_order) < order) in wakeup_kswapd()
7841 WRITE_ONCE(pgdat->kswapd_order, order); in wakeup_kswapd()
7843 if (!waitqueue_active(&pgdat->kswapd_wait)) in wakeup_kswapd()
7847 if (pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES || in wakeup_kswapd()
7848 (pgdat_balanced(pgdat, order, highest_zoneidx) && in wakeup_kswapd()
7849 !pgdat_watermark_boosted(pgdat, highest_zoneidx))) { in wakeup_kswapd()
7858 wakeup_kcompactd(pgdat, order, highest_zoneidx); in wakeup_kswapd()
7862 trace_mm_vmscan_wakeup_kswapd(pgdat->node_id, highest_zoneidx, order, in wakeup_kswapd()
7864 wake_up_interruptible(&pgdat->kswapd_wait); in wakeup_kswapd()
7911 pg_data_t *pgdat = NODE_DATA(nid); in kswapd_run() local
7913 pgdat_kswapd_lock(pgdat); in kswapd_run()
7914 if (!pgdat->kswapd) { in kswapd_run()
7915 pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid); in kswapd_run()
7916 if (IS_ERR(pgdat->kswapd)) { in kswapd_run()
7920 pgdat->kswapd = NULL; in kswapd_run()
7923 pgdat_kswapd_unlock(pgdat); in kswapd_run()
7932 pg_data_t *pgdat = NODE_DATA(nid); in kswapd_stop() local
7935 pgdat_kswapd_lock(pgdat); in kswapd_stop()
7936 kswapd = pgdat->kswapd; in kswapd_stop()
7939 pgdat->kswapd = NULL; in kswapd_stop()
7941 pgdat_kswapd_unlock(pgdat); in kswapd_stop()
7984 static inline unsigned long node_unmapped_file_pages(struct pglist_data *pgdat) in node_unmapped_file_pages() argument
7986 unsigned long file_mapped = node_page_state(pgdat, NR_FILE_MAPPED); in node_unmapped_file_pages()
7987 unsigned long file_lru = node_page_state(pgdat, NR_INACTIVE_FILE) + in node_unmapped_file_pages()
7988 node_page_state(pgdat, NR_ACTIVE_FILE); in node_unmapped_file_pages()
7999 static unsigned long node_pagecache_reclaimable(struct pglist_data *pgdat) in node_pagecache_reclaimable() argument
8011 nr_pagecache_reclaimable = node_page_state(pgdat, NR_FILE_PAGES); in node_pagecache_reclaimable()
8013 nr_pagecache_reclaimable = node_unmapped_file_pages(pgdat); in node_pagecache_reclaimable()
8017 delta += node_page_state(pgdat, NR_FILE_DIRTY); in node_pagecache_reclaimable()
8029 static int __node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned int order) in __node_reclaim() argument
8047 trace_mm_vmscan_node_reclaim_begin(pgdat->node_id, order, in __node_reclaim()
8059 if (node_pagecache_reclaimable(pgdat) > pgdat->min_unmapped_pages || in __node_reclaim()
8060 node_page_state_pages(pgdat, NR_SLAB_RECLAIMABLE_B) > pgdat->min_slab_pages) { in __node_reclaim()
8066 shrink_node(pgdat, &sc); in __node_reclaim()
8080 int node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned int order) in node_reclaim() argument
8094 if (node_pagecache_reclaimable(pgdat) <= pgdat->min_unmapped_pages && in node_reclaim()
8095 node_page_state_pages(pgdat, NR_SLAB_RECLAIMABLE_B) <= in node_reclaim()
8096 pgdat->min_slab_pages) in node_reclaim()
8111 if (node_state(pgdat->node_id, N_CPU) && pgdat->node_id != numa_node_id()) in node_reclaim()
8114 if (test_and_set_bit(PGDAT_RECLAIM_LOCKED, &pgdat->flags)) in node_reclaim()
8117 ret = __node_reclaim(pgdat, gfp_mask, order); in node_reclaim()
8118 clear_bit(PGDAT_RECLAIM_LOCKED, &pgdat->flags); in node_reclaim()