[PATCH v2 1/2] mm: create promo_wmark_pages and clean up open-coded sites

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From: Kaiyang Zhao <kaiyang2@xxxxxxxxxx>

Define promo_wmark_pages and convert current call sites of wmark_pages
with fixed WMARK_PROMO to using it instead.

Signed-off-by: Kaiyang Zhao <kaiyang2@xxxxxxxxxx>
---
 include/linux/mmzone.h | 1 +
 kernel/sched/fair.c    | 2 +-
 mm/vmscan.c            | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 9f389c76581f..6ea22b3e2f30 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -671,6 +671,7 @@ enum zone_watermarks {
 #define min_wmark_pages(z) (z->_watermark[WMARK_MIN] + z->watermark_boost)
 #define low_wmark_pages(z) (z->_watermark[WMARK_LOW] + z->watermark_boost)
 #define high_wmark_pages(z) (z->_watermark[WMARK_HIGH] + z->watermark_boost)
+#define promo_wmark_pages(z) (z->_watermark[WMARK_PROMO] + z->watermark_boost)
 #define wmark_pages(z, i) (z->_watermark[i] + z->watermark_boost)
 
 /*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 416e29b56cc4..20ea6d085305 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1742,7 +1742,7 @@ static bool pgdat_free_space_enough(struct pglist_data *pgdat)
 			continue;
 
 		if (zone_watermark_ok(zone, 0,
-				      wmark_pages(zone, WMARK_PROMO) + enough_wmark,
+				      promo_wmark_pages(zone) + enough_wmark,
 				      ZONE_MOVABLE, 0))
 			return true;
 	}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c89d0551655e..31d13462571e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -6705,7 +6705,7 @@ static bool pgdat_balanced(pg_data_t *pgdat, int order, int highest_zoneidx)
 			continue;
 
 		if (sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING)
-			mark = wmark_pages(zone, WMARK_PROMO);
+			mark = promo_wmark_pages(zone);
 		else
 			mark = high_wmark_pages(zone);
 		if (zone_watermark_ok_safe(zone, order, mark, highest_zoneidx))
-- 
2.43.0





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