1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 184cbdfbcc99..f3aa4bdafef6 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -310,6 +310,7 @@ struct fscache_cookie {
         atomic_t                        usage;          /* number of users of this cookie */
         atomic_t                        n_children;     /* number of children of this cookie */
         spinlock_t                      lock;
+        spinlock_t                      stores_lock;    /* lock on page store tree */
         struct hlist_head               backing_objects; /* object(s) backing this file/index */
         const struct fscache_cookie_def *def;           /* definition */
         struct fscache_cookie           *parent;        /* parent of this entry */