[PATCH] mm: add nr_free_highatomic in show_free_areas

[gaoxu]

The commit c928807f6f6b6("mm/page_alloc: keep track of free highatomic")
adds a new variable nr_free_highatomic, which is useful for analyzing low
mem issues. add nr_free_highatomic in show_free_areas.

Signed-off-by: gao xu <gaoxu2@xxxxxxxxx>
---
 mm/show_mem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/show_mem.c b/mm/show_mem.c
index ad373b4b6..03e8d968f 100644
--- a/mm/show_mem.c
+++ b/mm/show_mem.c
@@ -305,6 +305,7 @@ static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_z
 			" low:%lukB"
 			" high:%lukB"
 			" reserved_highatomic:%luKB"
+			" free_highatomic:%luKB"
 			" active_anon:%lukB"
 			" inactive_anon:%lukB"
 			" active_file:%lukB"
@@ -326,6 +327,7 @@ static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_z
 			K(low_wmark_pages(zone)),
 			K(high_wmark_pages(zone)),
 			K(zone->nr_reserved_highatomic),
+			K(zone->nr_free_highatomic),
 			K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)),
 			K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)),
 			K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)),
-- 
2.17.1