From 9f8b7c3919e494881697db355b8b8b33400d740e 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() 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 Signed-off-by: J. Bruce Fields [bwh: Backported to 3.2: - Adjust context - Also move initialisation of nfs4_client::cl_strhash, but not nfs4_client::cl_revoked] Signed-off-by: Ben Hutchings --- 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 4cef99ff2408..10eecccf7c78 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -986,6 +986,18 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name) } memcpy(clp->cl_name.data, name.data, name.len); 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_strhash); + INIT_LIST_HEAD(&clp->cl_openowners); + INIT_LIST_HEAD(&clp->cl_delegations); + INIT_LIST_HEAD(&clp->cl_lru); + INIT_LIST_HEAD(&clp->cl_callbacks); + spin_lock_init(&clp->cl_lock); + rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table"); return clp; } @@ -1163,7 +1175,6 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir, if (clp == NULL) return NULL; - INIT_LIST_HEAD(&clp->cl_sessions); princ = svc_gss_principal(rqstp); if (princ) { @@ -1174,21 +1185,10 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir, } } - idr_init(&clp->cl_stateids); memcpy(clp->cl_recdir, recdir, HEXDIR_LEN); - atomic_set(&clp->cl_refcount, 0); - clp->cl_cb_state = NFSD4_CB_UNKNOWN; - INIT_LIST_HEAD(&clp->cl_idhash); - INIT_LIST_HEAD(&clp->cl_strhash); - INIT_LIST_HEAD(&clp->cl_openowners); - INIT_LIST_HEAD(&clp->cl_delegations); - INIT_LIST_HEAD(&clp->cl_lru); - INIT_LIST_HEAD(&clp->cl_callbacks); - spin_lock_init(&clp->cl_lock); INIT_WORK(&clp->cl_cb_null.cb_work, nfsd4_do_callback_rpc); 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); clp->cl_flavor = rqstp->rq_flavor; -- 2.39.2