nfsd: serialize layout stateid morphing operations

[firefly-linux-kernel-4.4.55.git] / fs / nfsd / state.h

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 31bde12feefeec8434ef0aa25d24d318c9a4f938..1fa0f3848d4eb6324dbf391145ac1ef25f023874 100644 (file)
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -562,6 +562,7 @@ struct nfs4_layout_stateid {
        struct nfsd4_callback           ls_recall;
        stateid_t                       ls_recall_sid;
        bool                            ls_recalled;
+       struct mutex                    ls_mutex;
 };
 
 static inline struct nfs4_layout_stateid *layoutstateid(struct nfs4_stid *s)