[PATCH] mm, page_alloc: print reserved_highatomic info

[PATCH] mm, page_alloc: print reserved_highatomic info

[lijiazi]

Pintf nr_reserved_highatomic in show_free_areas, because when
alloc_harder is false, this value will be subtracted from the
free_pages in __zone_watermark_ok. Print this value can help
analyze mem alloc fail issue.

Signed-off-by: lijiazi <lijiazi@xiaomi.com>
---
 mm/page_alloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f391c0c..8b78a93 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5354,6 +5354,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
 			" min:%lukB"
 			" low:%lukB"
 			" high:%lukB"
+			" reserved_highatomic:%luKB"
 			" active_anon:%lukB"
 			" inactive_anon:%lukB"
 			" active_file:%lukB"
@@ -5375,6 +5376,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
 			K(min_wmark_pages(zone)),
 			K(low_wmark_pages(zone)),
 			K(high_wmark_pages(zone)),
+			K(zone->nr_reserved_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)),
-- 
2.7.4