From: Johannes Weiner <hannes@xxxxxxxxxxx> Subject: mm: workingset: use cheaper __inc_lruvec_state in irqsafe node reclaim No need to use the preemption-safe lruvec state function inside the reclaim region that has irqs disabled. Link: http://lkml.kernel.org/r/20181009184732.762-3-hannes@xxxxxxxxxxx Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Rik van Riel <riel@xxxxxxxxxxx> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/workingset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/workingset.c~mm-workingset-use-cheaper-__inc_lruvec_state-in-irqsafe-node-reclaim +++ a/mm/workingset.c @@ -500,7 +500,7 @@ static enum lru_status shadow_lru_isolat } if (WARN_ON_ONCE(node->exceptional)) goto out_invalid; - inc_lruvec_page_state(virt_to_page(node), WORKINGSET_NODERECLAIM); + __inc_lruvec_page_state(virt_to_page(node), WORKINGSET_NODERECLAIM); __radix_tree_delete_node(&mapping->i_pages, node, workingset_lookup_update(mapping)); _
