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-rw-r--r--fs/nfsd/state.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 88d029dd13aa..e45c183a8bf7 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -440,11 +440,11 @@ struct nfs4_openowner {
/*
* Represents a generic "lockowner". Similar to an openowner. References to it
* are held by the lock stateids that are created on its behalf. This object is
- * a superset of the nfs4_stateowner struct (or would be if it needed any extra
- * fields).
+ * a superset of the nfs4_stateowner struct.
*/
struct nfs4_lockowner {
- struct nfs4_stateowner lo_owner; /* must be first element */
+ struct nfs4_stateowner lo_owner; /* must be first element */
+ struct list_head lo_blocked; /* blocked file_locks */
};
static inline struct nfs4_openowner * openowner(struct nfs4_stateowner *so)
@@ -580,7 +580,13 @@ static inline bool nfsd4_stateid_generation_after(stateid_t *a, stateid_t *b)
return (s32)(a->si_generation - b->si_generation) > 0;
}
+/*
+ * When a client tries to get a lock on a file, we set one of these objects
+ * on the blocking lock. When the lock becomes free, we can then issue a
+ * CB_NOTIFY_LOCK to the server.
+ */
struct nfsd4_blocked_lock {
+ struct list_head nbl_list;
struct file_lock nbl_lock;
struct knfsd_fh nbl_fh;
struct nfsd4_callback nbl_cb;