1 files changed, 9 insertions, 6 deletions

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 89f95396ec46..809025ed97ea 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1552,7 +1552,6 @@ static const struct file_operations proc_vmstat_file_operations = {
 #endif /* CONFIG_PROC_FS */
 
 #ifdef CONFIG_SMP
-static struct workqueue_struct *vmstat_wq;
 static DEFINE_PER_CPU(struct delayed_work, vmstat_work);
 int sysctl_stat_interval __read_mostly = HZ;
 
@@ -1623,7 +1622,7 @@ static void vmstat_update(struct work_struct *w)
                  * to occur in the future. Keep on running the
                  * update worker thread.
                  */
-                queue_delayed_work_on(smp_processor_id(), vmstat_wq,
+                queue_delayed_work_on(smp_processor_id(), mm_percpu_wq,
                                 this_cpu_ptr(&vmstat_work),
                                 round_jiffies_relative(sysctl_stat_interval));
         }
@@ -1702,7 +1701,7 @@ static void vmstat_shepherd(struct work_struct *w)
                 struct delayed_work *dw = &per_cpu(vmstat_work, cpu);
 
                 if (!delayed_work_pending(dw) && need_update(cpu))
-                        queue_delayed_work_on(cpu, vmstat_wq, dw, 0);
+                        queue_delayed_work_on(cpu, mm_percpu_wq, dw, 0);
         }
         put_online_cpus();
 
@@ -1718,7 +1717,6 @@ static void __init start_shepherd_timer(void)
                 INIT_DEFERRABLE_WORK(per_cpu_ptr(&vmstat_work, cpu),
                         vmstat_update);
 
-        vmstat_wq = alloc_workqueue("vmstat", WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
         schedule_delayed_work(&shepherd,
                 round_jiffies_relative(sysctl_stat_interval));
 }
@@ -1764,11 +1762,16 @@ static int vmstat_cpu_dead(unsigned int cpu)
 
 #endif
 
+struct workqueue_struct *mm_percpu_wq;
+
 void __init init_mm_internals(void)
 {
-#ifdef CONFIG_SMP
-        int ret;
+        int ret __maybe_unused;
 
+        mm_percpu_wq = alloc_workqueue("mm_percpu_wq",
+                                       WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+
+#ifdef CONFIG_SMP
         ret = cpuhp_setup_state_nocalls(CPUHP_MM_VMSTAT_DEAD, "mm/vmstat:dead",
                                         NULL, vmstat_cpu_dead);
         if (ret < 0)