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-rw-r--r--include/linux/swap.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 75b2b0166cb1..a5f475335aea 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -317,6 +317,8 @@ struct swap_info_struct {
unsigned int pages; /* total of usable pages of swap */
atomic_long_t inuse_pages; /* number of those currently in use */
struct percpu_cluster __percpu *percpu_cluster; /* per cpu's swap location */
+ struct percpu_cluster *global_cluster; /* Use one global cluster for rotating device */
+ spinlock_t global_cluster_lock; /* Serialize usage of global cluster */
struct rb_root swap_extent_root;/* root of the swap extent rbtree */
struct block_device *bdev; /* swap device or bdev of swap file */
struct file *swap_file; /* seldom referenced */