@@ -1869,6 +1869,24 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name)
return NULL;
}
+static void __free_client(struct kref *k)
+{
+ struct nfs4_client *clp = container_of(k, struct nfs4_client, cl_ref);
+
+ free_svc_cred(&clp->cl_cred);
+ kfree(clp->cl_ownerstr_hashtbl);
+ kfree(clp->cl_name.data);
+ idr_destroy(&clp->cl_stateids);
+ if (clp->cl_nfsd_dentry)
+ nfsd_client_rmdir(clp->cl_nfsd_dentry);
+ kmem_cache_free(client_slab, clp);
+}
+
+void drop_client(struct nfs4_client *clp)
+{
+ kref_put(&clp->cl_ref, __free_client);
+}
+
static void
free_client(struct nfs4_client *clp)
{
@@ -1881,11 +1899,7 @@ free_client(struct nfs4_client *clp)
free_session(ses);
}
rpc_destroy_wait_queue(&clp->cl_cb_waitq);
- free_svc_cred(&clp->cl_cred);
- kfree(clp->cl_ownerstr_hashtbl);
- kfree(clp->cl_name.data);
- idr_destroy(&clp->cl_stateids);
- kmem_cache_free(client_slab, clp);
+ drop_client(clp);
}
/* must be called under the client_lock */
@@ -2195,6 +2209,8 @@ static struct nfs4_client *create_client(struct xdr_netobj name,
free_client(clp);
return NULL;
}
+
+ kref_init(&clp->cl_ref);
nfsd4_init_cb(&clp->cl_cb_null, clp, NULL, NFSPROC4_CLNT_CB_NULL);
clp->cl_time = get_seconds();
clear_bit(0, &clp->cl_cb_slot_busy);
@@ -347,6 +347,7 @@ struct nfs4_client {
u32 cl_exchange_flags;
/* number of rpc's in progress over an associated session: */
atomic_t cl_rpc_users;
+ struct kref cl_ref;
struct nfs4_op_map cl_spo_must_allow;
/* for nfs41 callbacks */