[PATCH 3.14 148/228] NFSd: Move default initialisers from create_client() to alloc_client()

[Greg Kroah-Hartman]

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <trond.mykleb...@primarydata.com>

commit 5694c93e6c4954fa9424c215f75eeb919bddad64 upstream.

Aside from making it clearer what is non-trivial in create_client(), it
also fixes a bug whereby we can call free_client() before idr_init()
has been called.

Signed-off-by: Trond Myklebust <trond.mykleb...@primarydata.com>
Signed-off-by: J. Bruce Fields <bfie...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/nfsd/nfs4state.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1078,6 +1078,18 @@ static struct nfs4_client *alloc_client(
                return NULL;
        }
        clp->cl_name.len = name.len;
+       INIT_LIST_HEAD(&clp->cl_sessions);
+       idr_init(&clp->cl_stateids);
+       atomic_set(&clp->cl_refcount, 0);
+       clp->cl_cb_state = NFSD4_CB_UNKNOWN;
+       INIT_LIST_HEAD(&clp->cl_idhash);
+       INIT_LIST_HEAD(&clp->cl_openowners);
+       INIT_LIST_HEAD(&clp->cl_delegations);
+       INIT_LIST_HEAD(&clp->cl_lru);
+       INIT_LIST_HEAD(&clp->cl_callbacks);
+       INIT_LIST_HEAD(&clp->cl_revoked);
+       spin_lock_init(&clp->cl_lock);
+       rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table");
        return clp;
 }
 
@@ -1347,7 +1359,6 @@ static struct nfs4_client *create_client
        if (clp == NULL)
                return NULL;
 
-       INIT_LIST_HEAD(&clp->cl_sessions);
        ret = copy_cred(&clp->cl_cred, &rqstp->rq_cred);
        if (ret) {
                spin_lock(&nn->client_lock);
@@ -1355,20 +1366,9 @@ static struct nfs4_client *create_client
                spin_unlock(&nn->client_lock);
                return NULL;
        }
-       idr_init(&clp->cl_stateids);
-       atomic_set(&clp->cl_refcount, 0);
-       clp->cl_cb_state = NFSD4_CB_UNKNOWN;
-       INIT_LIST_HEAD(&clp->cl_idhash);
-       INIT_LIST_HEAD(&clp->cl_openowners);
-       INIT_LIST_HEAD(&clp->cl_delegations);
-       INIT_LIST_HEAD(&clp->cl_lru);
-       INIT_LIST_HEAD(&clp->cl_callbacks);
-       INIT_LIST_HEAD(&clp->cl_revoked);
-       spin_lock_init(&clp->cl_lock);
        nfsd4_init_callback(&clp->cl_cb_null);
        clp->cl_time = get_seconds();
        clear_bit(0, &clp->cl_cb_slot_busy);
-       rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table");
        copy_verf(clp, verf);
        rpc_copy_addr((struct sockaddr *) &clp->cl_addr, sa);
        gen_confirm(clp);


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