percpu: expose pcpu_nr_empty_pop_pages in pcpu_stats

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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>

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Dennis Zhou (Facebook) 2017-07-15 22:23:08 -04:00 • committed by Tejun Heo

parent 02459164a2

commit 6b9b6f3994

3 changed files with 3 additions and 1 deletions

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1

mm/percpu-internal.h

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1

mm/percpu-stats.c

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2

mm/percpu.c

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