mm: vmstat: correct the comment above preempt_disable_nested()

The comment explaining why these parts use preempt_disable_nested() is in
__mod_zone_page_state(), not in __mod_node_page_state(), so we should see
__mod_zone_page_state(). Just correct it.

Link: https://lkml.kernel.org/r/20251110084437.46701-1-qi.zheng@linux.dev
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Harry Yoo <harry.yoo@oracle.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/vmstat.c b/mm/vmstat.c
index b53b07aa29e813c75c1ab0172d878d3d0d72a705..65de88cdf40e62f4cc6748a438b81bad511448d4 100644 (file)
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -392,7 +392,7 @@ void __mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
                delta >>= PAGE_SHIFT;
        }
 
-       /* See __mod_node_page_state */
+       /* See __mod_zone_page_state() */
        preempt_disable_nested();
 
        x = delta + __this_cpu_read(*p);
@@ -438,7 +438,7 @@ void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
        s8 __percpu *p = pcp->vm_stat_diff + item;
        s8 v, t;
 
-       /* See __mod_node_page_state */
+       /* See __mod_zone_page_state() */
        preempt_disable_nested();
 
        v = __this_cpu_inc_return(*p);
@@ -461,7 +461,7 @@ void __inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
 
        VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
 
-       /* See __mod_node_page_state */
+       /* See __mod_zone_page_state() */
        preempt_disable_nested();
 
        v = __this_cpu_inc_return(*p);
@@ -494,7 +494,7 @@ void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
        s8 __percpu *p = pcp->vm_stat_diff + item;
        s8 v, t;
 
-       /* See __mod_node_page_state */
+       /* See __mod_zone_page_state() */
        preempt_disable_nested();
 
        v = __this_cpu_dec_return(*p);
@@ -517,7 +517,7 @@ void __dec_node_state(struct pglist_data *pgdat, enum node_stat_item item)
 
        VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
 
-       /* See __mod_node_page_state */
+       /* See __mod_zone_page_state() */
        preempt_disable_nested();
 
        v = __this_cpu_dec_return(*p);