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-rw-r--r--drivers/md/bcache/bcache.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index e4a3f692057b..a3763d664a67 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -548,6 +548,7 @@ struct cache_set {
*/
wait_queue_head_t btree_cache_wait;
struct task_struct *btree_cache_alloc_lock;
+ spinlock_t btree_cannibalize_lock;
/*
* When we free a btree node, we increment the gen of the bucket the