From 6b9b6f39946c4a7a98fac31ee91bac43cd2b73a9 Mon Sep 17 00:00:00 2001 From: "Dennis Zhou (Facebook)" Date: Sat, 15 Jul 2017 22:23:08 -0400 Subject: percpu: expose pcpu_nr_empty_pop_pages in pcpu_stats Percpu memory holds a minimum threshold of pages that are populated in order to serve atomic percpu memory requests. This change makes it easier to verify that there are a minimum number of populated pages lying around. Signed-off-by: Dennis Zhou Signed-off-by: Tejun Heo --- mm/percpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mm/percpu.c') diff --git a/mm/percpu.c b/mm/percpu.c index bd4130a69bbc..9ec5fd498f1d 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -160,7 +160,7 @@ static LIST_HEAD(pcpu_map_extend_chunks); * The number of empty populated pages, protected by pcpu_lock. The * reserved chunk doesn't contribute to the count. */ -static int pcpu_nr_empty_pop_pages; +int pcpu_nr_empty_pop_pages; /* * Balance work is used to populate or destroy chunks asynchronously. We -- cgit v1.2.1