The patch titled drain_node_page(): Drain pages in batch units has been removed from the -mm tree. Its filename was drain_node_page-drain-pages-in-batch-units.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ Subject: drain_node_page(): Drain pages in batch units From: Christoph Lameter <clameter@xxxxxxx> drain_node_pages() currently drains the complete pageset of all pages. If there are a large number of pages in the queues then we may hold off interrupts for too long. Duplicate the method used in free_hot_cold_page. Only drain pcp->batch pages at one time. Signed-off-by: Christoph Lameter <clameter@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxx> --- mm/page_alloc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff -puN mm/page_alloc.c~drain_node_page-drain-pages-in-batch-units mm/page_alloc.c --- a/mm/page_alloc.c~drain_node_page-drain-pages-in-batch-units +++ a/mm/page_alloc.c @@ -685,9 +685,15 @@ void drain_node_pages(int nodeid) pcp = &pset->pcp[i]; if (pcp->count) { + int to_drain; + local_irq_save(flags); - free_pages_bulk(zone, pcp->count, &pcp->list, 0); - pcp->count = 0; + if (pcp->count >= pcp->batch) + to_drain = pcp->batch; + else + to_drain = pcp->count; + free_pages_bulk(zone, to_drain, &pcp->list, 0); + pcp->count -= to_drain; local_irq_restore(flags); } } _ Patches currently in -mm which might be from clameter@xxxxxxx are origin.patch workstruct-implement-generic-up-cmpxchg-where-an-arch-doesnt-support-it.patch ia64-resolve-name-clash-by-renaming-is_available_memory.patch deal-with-cases-of-zone_dma-meaning-the-first-zone.patch introduce-config_zone_dma.patch optional-zone_dma-in-the-vm.patch optional-zone_dma-in-the-vm-no-gfp_dma-check-in-the-slab-if-no-config_zone_dma-is-set.patch optional-zone_dma-in-the-vm-no-gfp_dma-check-in-the-slab-if-no-config_zone_dma-is-set-reduce-config_zone_dma-ifdefs.patch optional-zone_dma-for-ia64.patch remove-zone_dma-remains-from-parisc.patch remove-zone_dma-remains-from-sh-sh64.patch set-config_zone_dma-for-arches-with-generic_isa_dma.patch zoneid-fix-up-calculations-for-zoneid_pgshift.patch slab-use-a-multiply-instead-of-a-divide-in-obj_to_index.patch slab-use-a-multiply-instead-of-a-divide-in-obj_to_index-tweaks.patch sched-domain-move-sched-group-allocations-to-percpu-area.patch sched-avoid-taking-rq-lock-in-wake_priority_sleeper.patch sched-remove-staggering-of-load-balancing.patch sched-disable-interrupts-for-locking-in-load_balance.patch sched-extract-load-calculation-from-rebalance_tick.patch sched-move-idle-status-calculation-into-rebalance_tick.patch sched-use-softirq-for-load-balancing.patch sched-call-tasklet-less-frequently.patch sched-add-option-to-serialize-load-balancing.patch sched-add-option-to-serialize-load-balancing-fix.patch mm-only-sched-add-a-few-scheduler-event-counters.patch zvc-support-nr_slab_reclaimable--nr_slab_unreclaimable-swap_prefetch.patch reduce-max_nr_zones-swap_prefetch-remove-incorrect-use-of-zone_highmem.patch numa-add-zone_to_nid-function-swap_prefetch.patch remove-uses-of-kmem_cache_t-from-mm-and-include-linux-slabh-prefetch.patch readahead-state-based-method-aging-accounting.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