diff options
Diffstat (limited to 'mm/swap.c')
| -rw-r--r-- | mm/swap.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/mm/swap.c b/mm/swap.c index 4929bc1be60e..7ede3eddc12a 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/mm/swap.c * @@ -58,16 +59,16 @@ static DEFINE_PER_CPU(struct pagevec, activate_page_pvecs); static void __page_cache_release(struct page *page) { if (PageLRU(page)) { - struct zone *zone = page_zone(page); + pg_data_t *pgdat = page_pgdat(page); struct lruvec *lruvec; unsigned long flags; - spin_lock_irqsave(zone_lru_lock(zone), flags); - lruvec = mem_cgroup_page_lruvec(page, zone->zone_pgdat); + spin_lock_irqsave(&pgdat->lru_lock, flags); + lruvec = mem_cgroup_page_lruvec(page, pgdat); VM_BUG_ON_PAGE(!PageLRU(page), page); __ClearPageLRU(page); del_page_from_lru_list(page, lruvec, page_off_lru(page)); - spin_unlock_irqrestore(zone_lru_lock(zone), flags); + spin_unlock_irqrestore(&pgdat->lru_lock, flags); } __ClearPageWaiters(page); mem_cgroup_uncharge(page); @@ -320,19 +321,14 @@ static inline void activate_page_drain(int cpu) { } -static bool need_activate_page_drain(int cpu) -{ - return false; -} - void activate_page(struct page *page) { - struct zone *zone = page_zone(page); + pg_data_t *pgdat = page_pgdat(page); page = compound_head(page); - spin_lock_irq(zone_lru_lock(zone)); - __activate_page(page, mem_cgroup_page_lruvec(page, zone->zone_pgdat), NULL); - spin_unlock_irq(zone_lru_lock(zone)); + spin_lock_irq(&pgdat->lru_lock); + __activate_page(page, mem_cgroup_page_lruvec(page, pgdat), NULL); + spin_unlock_irq(&pgdat->lru_lock); } #endif @@ -653,13 +649,15 @@ void lru_add_drain(void) put_cpu(); } +#ifdef CONFIG_SMP + +static DEFINE_PER_CPU(struct work_struct, lru_add_drain_work); + static void lru_add_drain_per_cpu(struct work_struct *dummy) { lru_add_drain(); } -static DEFINE_PER_CPU(struct work_struct, lru_add_drain_work); - /* * Doesn't need any cpu hotplug locking because we do rely on per-cpu * kworkers being shut down before our page_alloc_cpu_dead callback is @@ -702,6 +700,12 @@ void lru_add_drain_all(void) mutex_unlock(&lock); } +#else +void lru_add_drain_all(void) +{ + lru_add_drain(); +} +#endif /** * release_pages - batched put_page() @@ -864,7 +868,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec, SetPageLRU(page); /* * Page becomes evictable in two ways: - * 1) Within LRU lock [munlock_vma_pages() and __munlock_pagevec()]. + * 1) Within LRU lock [munlock_vma_page() and __munlock_pagevec()]. * 2) Before acquiring LRU lock to put the page to correct LRU and then * a) do PageLRU check with lock [check_move_unevictable_pages] * b) do PageLRU check before lock [clear_page_mlock] |