X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fldlm%2Fl_lock.c;h=d1de7d1f85da3eb668374069223151b8489e69f1;hb=0d8a372d30572077fbf943c7d3f32e3d5d7ee3d5;hp=e23a75530c5344ddd40fee3ff040a48efd79d067;hpb=ec295cad998d4d5e7fc915491da5ac646dbc6af6;p=fs%2Flustre-release.git diff --git a/lustre/ldlm/l_lock.c b/lustre/ldlm/l_lock.c index e23a755..d1de7d1 100644 --- a/lustre/ldlm/l_lock.c +++ b/lustre/ldlm/l_lock.c @@ -1,26 +1,35 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (C) 2001, 2002 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of the Lustre file system, http://www.lustre.org - * Lustre is a trademark of Cluster File Systems, Inc. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. * - * You may have signed or agreed to another license before downloading - * this software. If so, you are bound by the terms and conditions - * of that agreement, and the following does not apply to you. See the - * LICENSE file included with this distribution for more information. + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). * - * If you did not agree to a different license, then this copy of Lustre - * is open source software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * - * In either case, Lustre is distributed in the hope that it will be - * useful, but WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * license text for more details. + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. * + * GPL HEADER END + */ +/* + * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. */ #define DEBUG_SUBSYSTEM S_LDLM @@ -41,31 +50,22 @@ */ struct ldlm_resource * lock_res_and_lock(struct ldlm_lock *lock) { - struct ldlm_resource *res = lock->l_resource; + /* on server-side resource of lock doesn't change */ + if (!lock->l_ns_srv) + cfs_spin_lock(&lock->l_lock); - if (ns_is_server(res->lr_namespace)) { - /* on server-side resource of lock doesn't change */ - lock_res(res); - return res; - } + lock_res(lock->l_resource); - spin_lock(&lock->l_lock); - res = lock->l_resource; - lock_res(res); - return res; + lock->l_res_locked = 1; + return lock->l_resource; } void unlock_res_and_lock(struct ldlm_lock *lock) { - struct ldlm_resource *res = lock->l_resource; - - if (ns_is_server(res->lr_namespace)) { - /* on server-side resource of lock doesn't change */ - unlock_res(res); - return; - } + /* on server-side resource of lock doesn't change */ + lock->l_res_locked = 0; - unlock_res(res); - spin_unlock(&lock->l_lock); + unlock_res(lock->l_resource); + if (!lock->l_ns_srv) + cfs_spin_unlock(&lock->l_lock); } -