From 5694c93e6c4954fa9424c215f75eeb919bddad64 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 18 Apr 2014 14:43:56 -0400 Subject: [PATCH] NFSd: Move default initialisers from create_client() to alloc_client() 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 Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4state.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 3ba65979a3cd..230d21cb1717 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1078,6 +1078,18 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name) 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(struct xdr_netobj name, 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(struct xdr_netobj name, 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); -- 2.39.2