percpu: fix early calls for spinlock in pcpu_stats

[mirror_ubuntu-bionic-kernel.git] / mm / percpu-internal.h

diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h
index d030fce745a2863a9a8fdcab0b4585ac73f3b984..cd2442e13d8f5add724bb6be9de1c3dc2ae8f715 100644 (file)
--- a/mm/percpu-internal.h
+++ b/mm/percpu-internal.h
@@ -116,13 +116,14 @@ static inline void pcpu_stats_area_dealloc(struct pcpu_chunk *chunk)
  */
 static inline void pcpu_stats_chunk_alloc(void)
 {
-       spin_lock_irq(&pcpu_lock);
+       unsigned long flags;
+       spin_lock_irqsave(&pcpu_lock, flags);
 
        pcpu_stats.nr_chunks++;
        pcpu_stats.nr_max_chunks =
                max(pcpu_stats.nr_max_chunks, pcpu_stats.nr_chunks);
 
-       spin_unlock_irq(&pcpu_lock);
+       spin_unlock_irqrestore(&pcpu_lock, flags);
 }
 
 /*
@@ -130,11 +131,12 @@ static inline void pcpu_stats_chunk_alloc(void)
  */
 static inline void pcpu_stats_chunk_dealloc(void)
 {
-       spin_lock_irq(&pcpu_lock);
+       unsigned long flags;
+       spin_lock_irqsave(&pcpu_lock, flags);
 
        pcpu_stats.nr_chunks--;
 
-       spin_unlock_irq(&pcpu_lock);
+       spin_unlock_irqrestore(&pcpu_lock, flags);
 }
 
 #else