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 <dennisszhou@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/mm/percpu-stats.c b/mm/percpu-stats.c
index fa0f5de..44e561d 100644
--- a/mm/percpu-stats.c
+++ b/mm/percpu-stats.c
@@ -164,6 +164,7 @@ static int percpu_stats_show(struct seq_file *m, void *v)
PU(nr_max_chunks);
PU(min_alloc_size);
PU(max_alloc_size);
+ P("empty_pop_pages", pcpu_nr_empty_pop_pages);
seq_putc(m, '\n');
#undef PU