1 files changed, 1 insertions, 0 deletions

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 5c0dd26d0985..78a53f5a9f18 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -126,6 +126,7 @@ static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status
  * semantics by allowing the server to identify replayed requests.
  */
 struct nfs4_state_owner {
+        spinlock_t           so_lock;
         struct list_head     so_list;    /* per-clientid list of state_owners */
         struct nfs4_client   *so_client;
         u32                  so_id;      /* 32-bit identifier, unique */