diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory_hotplug.c | 3 | ||||
| -rw-r--r-- | mm/page_alloc.c | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 597d371329d3..3ad25f9d1fc1 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -966,6 +966,9 @@ repeat: init_per_zone_wmark_min(); + if (!populated_zone(zone)) + zone_pcp_reset(zone); + if (!node_present_pages(node)) { node_clear_state(node, N_HIGH_MEMORY); kswapd_stop(node); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9ad6866ac49c..9c9a31665a78 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5894,6 +5894,19 @@ void free_contig_range(unsigned long pfn, unsigned nr_pages) #endif #ifdef CONFIG_MEMORY_HOTREMOVE +void zone_pcp_reset(struct zone *zone) +{ + unsigned long flags; + + /* avoid races with drain_pages() */ + local_irq_save(flags); + if (zone->pageset != &boot_pageset) { + free_percpu(zone->pageset); + zone->pageset = &boot_pageset; + } + local_irq_restore(flags); +} + /* * All pages in the range must be isolated before calling this. */ |