Messages in this thread Patch in this message | | | From | Cody P Schafer <> | Subject | [RFC PATCH v2 14/25] page_alloc: use dnuma to transplant newly freed pages in __free_pages_ok() | Date | Thu, 11 Apr 2013 18:13:46 -0700 |
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__free_pages_ok() handles higher order (order != 0) pages. Transplant hook is added here as this is where the struct zone to free to is decided.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com> --- mm/page_alloc.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4628443..f8ae178 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -59,6 +59,7 @@ #include <linux/migrate.h> #include <linux/page-debug-flags.h> #include <linux/sched/rt.h> +#include <linux/dnuma.h> #include <asm/tlbflush.h> #include <asm/div64.h> @@ -732,6 +733,13 @@ static void __free_pages_ok(struct page *page, unsigned int order) { unsigned long flags; int migratetype; + int dest_nid = dnuma_page_needs_move(page); + struct zone *zone; + + if (dest_nid != NUMA_NO_NODE) + zone = nid_zone(dest_nid, page_zonenum(page)); + else + zone = page_zone(page); if (!free_pages_prepare(page, order)) return; @@ -740,7 +748,11 @@ static void __free_pages_ok(struct page *page, unsigned int order) __count_vm_events(PGFREE, 1 << order); migratetype = get_pageblock_migratetype(page); set_freepage_migratetype(page, migratetype); - free_one_page(page_zone(page), page, order, migratetype); + if (dest_nid != NUMA_NO_NODE) + dnuma_prior_free_to_new_zone(page, order, zone, dest_nid); + free_one_page(zone, page, order, migratetype); + if (dest_nid != NUMA_NO_NODE) + dnuma_post_free_to_new_zone(order); local_irq_restore(flags); } -- 1.8.2.1
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