@@ -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)),
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(+)