From: Kaiyang Zhao <kaiyang2@xxxxxxxxxx> Use ZONE_MOVABLE exclusively for non-0 order allocations Signed-off-by: Kaiyang Zhao <zh_kaiyang@xxxxxxxxxxx> --- mm/page_alloc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 47421bedc12b..9ad9357e340a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3403,6 +3403,16 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags, struct page *page; unsigned long mark; + /* + * Disallows high-order movable allocations in other zones if + * ZONE_MOVABLE is populated on this node. + */ + if (ac->highest_zoneidx >= ZONE_MOVABLE && + order > 0 && + zone_idx(zone) != ZONE_MOVABLE && + populated_zone(&(zone->zone_pgdat->node_zones[ZONE_MOVABLE]))) + continue; + if (cpusets_enabled() && (alloc_flags & ALLOC_CPUSET) && !__cpuset_zone_allowed(zone, gfp_mask)) -- 2.40.1
