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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>
This commit is contained in:
Qi Zheng 2025-11-10 16:44:37 +08:00 committed by Andrew Morton
parent 2ab7f1bbaf
commit 3a47e8771c
1 changed files with 5 additions and 5 deletions
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10
mm/vmstat.c
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@ -392,7 +392,7 @@ void __mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
delta >>= PAGE_SHIFT; delta >>= PAGE_SHIFT;
} }
/* See __mod_node_page_state */ /* See __mod_zone_page_state() */
preempt_disable_nested(); preempt_disable_nested();
x = delta + __this_cpu_read(*p); 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 __percpu *p = pcp->vm_stat_diff + item;
s8 v, t; s8 v, t;
/* See __mod_node_page_state */ /* See __mod_zone_page_state() */
preempt_disable_nested(); preempt_disable_nested();
v = __this_cpu_inc_return(*p); 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)); VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
/* See __mod_node_page_state */ /* See __mod_zone_page_state() */
preempt_disable_nested(); preempt_disable_nested();
v = __this_cpu_inc_return(*p); 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 __percpu *p = pcp->vm_stat_diff + item;
s8 v, t; s8 v, t;
/* See __mod_node_page_state */ /* See __mod_zone_page_state() */
preempt_disable_nested(); preempt_disable_nested();
v = __this_cpu_dec_return(*p); 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)); VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
/* See __mod_node_page_state */ /* See __mod_zone_page_state() */
preempt_disable_nested(); preempt_disable_nested();
v = __this_cpu_dec_return(*p); v = __this_cpu_dec_return(*p);