diff options
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 9ca1d604f7cd..9f646374e32f 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -374,10 +374,6 @@ void online_page(struct page *page) totalhigh_pages++; #endif -#ifdef CONFIG_FLATMEM - max_mapnr = max(pfn, max_mapnr); -#endif - ClearPageReserved(page); init_page_count(page); __free_page(page); @@ -400,7 +396,7 @@ static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages, } -int online_pages(unsigned long pfn, unsigned long nr_pages) +int __ref online_pages(unsigned long pfn, unsigned long nr_pages) { unsigned long onlined_pages = 0; struct zone *zone; @@ -459,8 +455,9 @@ int online_pages(unsigned long pfn, unsigned long nr_pages) zone_pcp_update(zone); mutex_unlock(&zonelists_mutex); - setup_per_zone_wmarks(); - calculate_zone_inactive_ratio(zone); + + init_per_zone_wmark_min(); + if (onlined_pages) { kswapd_run(zone_to_nid(zone)); node_set_state(zone_to_nid(zone), N_HIGH_MEMORY); @@ -705,7 +702,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) if (!pfn_valid(pfn)) continue; page = pfn_to_page(pfn); - if (!page_count(page)) + if (!get_page_unless_zero(page)) continue; /* * We can skip free pages. And we can only deal with pages on @@ -713,6 +710,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) */ ret = isolate_lru_page(page); if (!ret) { /* Success */ + put_page(page); list_add_tail(&page->lru, &source); move_pages--; inc_zone_page_state(page, NR_ISOLATED_ANON + @@ -724,6 +722,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) pfn); dump_page(page); #endif + put_page(page); /* Because we don't have big zone->lock. we should check this again here. */ if (page_count(page)) { @@ -795,7 +794,7 @@ check_pages_isolated(unsigned long start_pfn, unsigned long end_pfn) return offlined; } -static int offline_pages(unsigned long start_pfn, +static int __ref offline_pages(unsigned long start_pfn, unsigned long end_pfn, unsigned long timeout) { unsigned long pfn, nr_pages, expire; @@ -893,8 +892,8 @@ repeat: zone->zone_pgdat->node_present_pages -= offlined_pages; totalram_pages -= offlined_pages; - setup_per_zone_wmarks(); - calculate_zone_inactive_ratio(zone); + init_per_zone_wmark_min(); + if (!node_present_pages(node)) { node_clear_state(node, N_HIGH_MEMORY); kswapd_stop(node); |