diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/lustre_handles.h')
-rw-r--r-- | drivers/staging/lustre/lustre/include/lustre_handles.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/drivers/staging/lustre/lustre/include/lustre_handles.h b/drivers/staging/lustre/lustre/include/lustre_handles.h deleted file mode 100644 index c48c97362cf6..000000000000 --- a/drivers/staging/lustre/lustre/include/lustre_handles.h +++ /dev/null @@ -1,93 +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) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - */ - -#ifndef __LUSTRE_HANDLES_H_ -#define __LUSTRE_HANDLES_H_ - -/** \defgroup handles handles - * - * @{ - */ - -#include <linux/atomic.h> -#include <linux/list.h> -#include <linux/rcupdate.h> -#include <linux/spinlock.h> -#include <linux/types.h> - -#include <linux/libcfs/libcfs.h> - -struct portals_handle_ops { - void (*hop_addref)(void *object); - void (*hop_free)(void *object, int size); -}; - -/* These handles are most easily used by having them appear at the very top of - * whatever object that you want to make handles for. ie: - * - * struct ldlm_lock { - * struct portals_handle handle; - * ... - * }; - * - * Now you're able to assign the results of cookie2handle directly to an - * ldlm_lock. If it's not at the top, you'll want to use container_of() - * to compute the start of the structure based on the handle field. - */ -struct portals_handle { - struct list_head h_link; - __u64 h_cookie; - const void *h_owner; - struct portals_handle_ops *h_ops; - - /* newly added fields to handle the RCU issue. -jxiong */ - struct rcu_head h_rcu; - spinlock_t h_lock; - unsigned int h_size:31; - unsigned int h_in:1; -}; - -/* handles.c */ - -/* Add a handle to the hash table */ -void class_handle_hash(struct portals_handle *, - struct portals_handle_ops *ops); -void class_handle_unhash(struct portals_handle *); -void *class_handle2object(__u64 cookie, const void *owner); -void class_handle_free_cb(struct rcu_head *rcu); -int class_handle_init(void); -void class_handle_cleanup(void); - -/** @} handles */ - -#endif |