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-rw-r--r--mm/percpu.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 41e58f3d8fbf..c66149ce1fe6 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1721,6 +1721,7 @@ void free_percpu(void __percpu *ptr)
struct pcpu_chunk *chunk;
unsigned long flags;
int off;
+ bool need_balance = false;
if (!ptr)
return;
@@ -1742,7 +1743,7 @@ void free_percpu(void __percpu *ptr)
list_for_each_entry(pos, &pcpu_slot[pcpu_nr_slots - 1], list)
if (pos != chunk) {
- pcpu_schedule_balance_work();
+ need_balance = true;
break;
}
}
@@ -1750,6 +1751,9 @@ void free_percpu(void __percpu *ptr)
trace_percpu_free_percpu(chunk->base_addr, off, ptr);
spin_unlock_irqrestore(&pcpu_lock, flags);
+
+ if (need_balance)
+ pcpu_schedule_balance_work();
}
EXPORT_SYMBOL_GPL(free_percpu);