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Commit 505802a5 authored by Johannes Weiner's avatar Johannes Weiner Committed by Linus Torvalds
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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@cmpxchg.org


Signed-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarRik van Riel <riel@surriel.com>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2ce7135a

mm/workingset.c

+1 −1
Original line number Diff line number Diff line
@@ -500,7 +500,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item, 
	}

	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));