+ mm-vmstat-remove-unused-node-and-zone-state-helpers.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/vmstat: remove unused node and zone state helpers
has been added to the -mm mm-new branch.  Its filename is
     mm-vmstat-remove-unused-node-and-zone-state-helpers.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmstat-remove-unused-node-and-zone-state-helpers.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
Subject: mm/vmstat: remove unused node and zone state helpers
Date: Thu, 25 Dec 2025 21:02:13 +0000

Several helper functions for managing node and zone states have become
obsolete and no longer have any callers within the kernel.

  inc_node_state()
  inc_zone_state()
  dec_zone_state()

This commit removes the dead code.

Link: https://lkml.kernel.org/r/20251225210213.2553-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/vmstat.h |    6 ------
 mm/vmstat.c            |   15 ---------------
 2 files changed, 21 deletions(-)

--- a/include/linux/vmstat.h~mm-vmstat-remove-unused-node-and-zone-state-helpers
+++ a/include/linux/vmstat.h
@@ -286,10 +286,8 @@ void mod_node_page_state(struct pglist_d
 void inc_node_page_state(struct page *, enum node_stat_item);
 void dec_node_page_state(struct page *, enum node_stat_item);
 
-extern void inc_node_state(struct pglist_data *, enum node_stat_item);
 extern void __inc_zone_state(struct zone *, enum zone_stat_item);
 extern void __inc_node_state(struct pglist_data *, enum node_stat_item);
-extern void dec_zone_state(struct zone *, enum zone_stat_item);
 extern void __dec_zone_state(struct zone *, enum zone_stat_item);
 extern void __dec_node_state(struct pglist_data *, enum node_stat_item);
 
@@ -394,10 +392,6 @@ static inline void __dec_node_page_state
 #define dec_node_page_state __dec_node_page_state
 #define mod_node_page_state __mod_node_page_state
 
-#define inc_zone_state __inc_zone_state
-#define inc_node_state __inc_node_state
-#define dec_zone_state __dec_zone_state
-
 #define set_pgdat_percpu_threshold(pgdat, callback) { }
 
 static inline void refresh_zone_stat_thresholds(void) { }
--- a/mm/vmstat.c~mm-vmstat-remove-unused-node-and-zone-state-helpers
+++ a/mm/vmstat.c
@@ -672,11 +672,6 @@ void mod_node_page_state(struct pglist_d
 }
 EXPORT_SYMBOL(mod_node_page_state);
 
-void inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
-{
-	mod_node_state(pgdat, item, 1, 1);
-}
-
 void inc_node_page_state(struct page *page, enum node_stat_item item)
 {
 	mod_node_state(page_pgdat(page), item, 1, 1);
@@ -725,16 +720,6 @@ void dec_zone_page_state(struct page *pa
 }
 EXPORT_SYMBOL(dec_zone_page_state);
 
-void inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__inc_node_state(pgdat, item);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL(inc_node_state);
-
 void mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
 					long delta)
 {
_

Patches currently in -mm which might be from richard.weiyang@gmail.com are

mm-vmstat-remove-unused-node-and-zone-state-helpers.patch