[SRU][N/O:linux-intel][PATCH 1/4] mm: print the promo watermark in zoneinfo

[Thibault Ferrante]

From: Kaiyang Zhao <kaiyang2 at cs.cmu.edu>

BugLink: https://bugs.launchpad.net/bugs/2103530

Print the promo watermark in zoneinfo just like other watermarks.  This
helps users check and verify all the watermarks are appropriate.

Link: https://lkml.kernel.org/r/20240801232548.36604-3-kaiyang2@cs.cmu.edu
Signed-off-by: Kaiyang Zhao <kaiyang2 at cs.cmu.edu>
Cc: Johannes Weiner <hannes at cmpxchg.org>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
(cherry picked from commit d7f77d7bf6cd2a59186b6ae8affc5862ff05fb41 https://github.com/intel/kernel-downstream)
Signed-off-by: Thibault Ferrante <thibault.ferrante at canonical.com>
---
 mm/vmstat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index b8efd2826c40a..60ba6b696df5e 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1718,6 +1718,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
 		   "\n        min      %lu"
 		   "\n        low      %lu"
 		   "\n        high     %lu"
+		   "\n        promo    %lu"
 		   "\n        spanned  %lu"
 		   "\n        present  %lu"
 		   "\n        managed  %lu"
@@ -1727,6 +1728,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
 		   min_wmark_pages(zone),
 		   low_wmark_pages(zone),
 		   high_wmark_pages(zone),
+		   promo_wmark_pages(zone),
 		   zone->spanned_pages,
 		   zone->present_pages,
 		   zone_managed_pages(zone),
-- 
2.45.2