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-rw-r--r--include/linux/mmzone.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 041136b5628a..578247a341b2 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -382,6 +382,7 @@ enum zone_watermarks {
/* Fields and list protected by pagesets local_lock in page_alloc.c */
struct per_cpu_pages {
+ spinlock_t lock; /* Protects lists field */
int count; /* number of pages in the list */
int high; /* high watermark, emptying needed */
int batch; /* chunk size for buddy add/remove */