The patch titled mm, mem-hotplug: recalculate lowmem_reserve when memory hotplug occurs has been removed from the -mm tree. Its filename was mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: mm, mem-hotplug: recalculate lowmem_reserve when memory hotplug occurs From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Currently, memory hotplug calls setup_per_zone_wmarks() and calculate_zone_inactive_ratio(), but doesn't call setup_per_zone_lowmem_reserve(). It means the number of reserved pages aren't updated even if memory hot plug occur. This patch fixes it. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: Mel Gorman <mel@xxxxxxxxx> Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/mm.h | 2 +- mm/memory_hotplug.c | 9 +++++---- mm/page_alloc.c | 4 ++-- 3 files changed, 8 insertions(+), 7 deletions(-) diff -puN include/linux/mm.h~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur include/linux/mm.h --- a/include/linux/mm.h~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur +++ a/include/linux/mm.h @@ -1381,7 +1381,7 @@ extern void set_dma_reserve(unsigned lon extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long, enum memmap_context); extern void setup_per_zone_wmarks(void); -extern void calculate_zone_inactive_ratio(struct zone *zone); +extern int __meminit init_per_zone_wmark_min(void); extern void mem_init(void); extern void __init mmap_init(void); extern void show_mem(unsigned int flags); diff -puN mm/memory_hotplug.c~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur mm/memory_hotplug.c --- a/mm/memory_hotplug.c~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur +++ a/mm/memory_hotplug.c @@ -459,8 +459,9 @@ int __ref online_pages(unsigned long pfn 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); @@ -893,8 +894,8 @@ 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); diff -puN mm/page_alloc.c~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur mm/page_alloc.c --- a/mm/page_alloc.c~mm-mem-hotplug-recalculate-lowmem_reserve-when-memory-hotplug-occur +++ a/mm/page_alloc.c @@ -5094,7 +5094,7 @@ void setup_per_zone_wmarks(void) * 1TB 101 10GB * 10TB 320 32GB */ -void __meminit calculate_zone_inactive_ratio(struct zone *zone) +static void __meminit calculate_zone_inactive_ratio(struct zone *zone) { unsigned int gb, ratio; @@ -5140,7 +5140,7 @@ static void __meminit setup_per_zone_ina * 8192MB: 11584k * 16384MB: 16384k */ -static int __init init_per_zone_wmark_min(void) +int __meminit init_per_zone_wmark_min(void) { unsigned long lowmem_kbytes; _ Patches currently in -mm which might be from kosaki.motohiro@xxxxxxxxxxxxxx are origin.patch linux-next.patch mm-increase-reclaim_distance-to-30.patch slab-use-numa_no_node.patch m32r-convert-cpumask-api.patch m32r-fix-spin_lock_irqsave-misuse.patch m32r-remove-redundant-declaration.patch getdelays-show-average-cpu-io-swap-reclaim-delays.patch mm-move-enum-vm_event_item-into-a-standalone-header-file.patch memcg-count-the-soft_limit-reclaim-in-global-background-reclaim.patch memcg-add-the-soft_limit-reclaim-in-global-direct-reclaim.patch memcg-reclaim-memory-from-nodes-in-round-robin-order.patch memcg-reclaim-memory-from-nodes-in-round-robin-fix.patch memcg-reclaim-memory-from-nodes-in-round-robin-fix-2.patch memcg-reclaim-memory-from-nodes-in-round-robin-order-fix.patch memcg-fix-get_scan_count-for-small-targets.patch memcg-remove-unused-retry-signal-from-reclaim.patch vmscanmemcg-memcg-aware-swap-token.patch vmscan-implement-swap-token-trace.patch vmscan-implement-swap-token-priority-aging.patch add-the-pagefault-count-into-memcg-stats.patch cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node.patch cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-cpusets-initialize-spread-rotor-lazily.patch proc-put-check_mem_permission-after-__get_free_page-in-mem_write.patch proc-fix-pagemap_read-error-case.patch cpumask-convert-for_each_cpumask-with-for_each_cpu.patch cpumask-convert-cpumask_of_cpu-to-cpumask_of.patch cpumask-alloc_cpumask_var-use-numa_no_node.patch cpumask-add-cpumask_var_t-documentation.patch kexec-remove-kmsg_dump_kexec.patch kexec-remove-kmsg_dump_kexec-fix.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html