diff options
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 42 |
1 files changed, 16 insertions, 26 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 11adc890ce3..26f4a8a4e0c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -715,7 +715,13 @@ static enum page_references page_check_references(struct page *page, */ SetPageReferenced(page); - if (referenced_page) + if (referenced_page || referenced_ptes > 1) + return PAGEREF_ACTIVATE; + + /* + * Activate file-backed executable pages after first usage. + */ + if (vm_flags & VM_EXEC) return PAGEREF_ACTIVATE; return PAGEREF_KEEP; @@ -728,24 +734,6 @@ static enum page_references page_check_references(struct page *page, return PAGEREF_RECLAIM; } -static noinline_for_stack void free_page_list(struct list_head *free_pages) -{ - struct pagevec freed_pvec; - struct page *page, *tmp; - - pagevec_init(&freed_pvec, 1); - - list_for_each_entry_safe(page, tmp, free_pages, lru) { - list_del(&page->lru); - if (!pagevec_add(&freed_pvec, page)) { - __pagevec_free(&freed_pvec); - pagevec_reinit(&freed_pvec); - } - } - - pagevec_free(&freed_pvec); -} - /* * shrink_page_list() returns the number of reclaimed pages */ @@ -1009,7 +997,7 @@ keep_lumpy: if (nr_dirty && nr_dirty == nr_congested && scanning_global_lru(sc)) zone_set_flag(zone, ZONE_CONGESTED); - free_page_list(&free_pages); + free_hot_cold_page_list(&free_pages, 1); list_splice(&ret_pages, page_list); count_vm_events(PGACTIVATE, pgactivate); @@ -1178,14 +1166,14 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan, * anon page which don't already have a swap slot is * pointless. */ - if (nr_swap_pages <= 0 && PageAnon(cursor_page) && + if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) && !PageSwapCache(cursor_page)) break; if (__isolate_lru_page(cursor_page, mode, file) == 0) { list_move(&cursor_page->lru, dst); mem_cgroup_del_lru(cursor_page); - nr_taken += hpage_nr_pages(page); + nr_taken += hpage_nr_pages(cursor_page); nr_lumpy_taken++; if (PageDirty(cursor_page)) nr_lumpy_dirty++; @@ -2012,8 +2000,9 @@ static inline bool should_continue_reclaim(struct zone *zone, * inactive lists are large enough, continue reclaiming */ pages_for_compaction = (2UL << sc->order); - inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON) + - zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE); + inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE); + if (nr_swap_pages > 0) + inactive_lru_pages += zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON); if (sc->nr_reclaimed < pages_for_compaction && inactive_lru_pages > pages_for_compaction) return true; @@ -3448,9 +3437,10 @@ void scan_mapping_unevictable_pages(struct address_space *mapping) static void warn_scan_unevictable_pages(void) { printk_once(KERN_WARNING - "The scan_unevictable_pages sysctl/node-interface has been " + "%s: The scan_unevictable_pages sysctl/node-interface has been " "disabled for lack of a legitimate use case. If you have " - "one, please send an email to linux-mm@kvack.org.\n"); + "one, please send an email to linux-mm@kvack.org.\n", + current->comm); } /* |