diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/ldlm/l_lock.c')
-rw-r--r-- | drivers/staging/lustre/lustre/ldlm/l_lock.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c deleted file mode 100644 index 296259aa51e6..000000000000 --- a/drivers/staging/lustre/lustre/ldlm/l_lock.c +++ /dev/null @@ -1,73 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * 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. - * - * 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). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - */ - -#define DEBUG_SUBSYSTEM S_LDLM - -#include <lustre_dlm.h> -#include <lustre_lib.h> - -/** - * Lock a lock and its resource. - * - * LDLM locking uses resource to serialize access to locks - * but there is a case when we change resource of lock upon - * enqueue reply. We rely on lock->l_resource = new_res - * being an atomic operation. - */ -struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock) - __acquires(&lock->l_lock) - __acquires(&lock->l_resource->lr_lock) -{ - spin_lock(&lock->l_lock); - - lock_res(lock->l_resource); - - ldlm_set_res_locked(lock); - return lock->l_resource; -} -EXPORT_SYMBOL(lock_res_and_lock); - -/** - * Unlock a lock and its resource previously locked with lock_res_and_lock - */ -void unlock_res_and_lock(struct ldlm_lock *lock) - __releases(&lock->l_resource->lr_lock) - __releases(&lock->l_lock) -{ - /* on server-side resource of lock doesn't change */ - ldlm_clear_res_locked(lock); - - unlock_res(lock->l_resource); - spin_unlock(&lock->l_lock); -} -EXPORT_SYMBOL(unlock_res_and_lock); |