1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * Internal cl interfaces.
38 * Author: Nikita Danilov <nikita.danilov@sun.com>
40 #ifndef _CL_INTERNAL_H
41 #define _CL_INTERNAL_H
43 #define CLT_PVEC_SIZE (14)
46 * Thread local state internal for generic cl-code.
48 struct cl_thread_info {
53 struct cl_2queue clt_queue;
56 * Fields used by cl_lock.c
58 struct cl_lock_descr clt_descr;
59 struct cl_page_list clt_list;
63 * Counters used to check correctness of cl_lock interface usage.
67 * Number of outstanding calls to cl_lock_mutex_get() made by the
68 * current thread. For debugging.
70 int clt_nr_locks_locked;
71 /** List of locked locks. */
72 struct lu_ref clt_locks_locked;
73 /** Number of outstanding holds on the top-level locks. */
75 /** Number of outstanding uses on the top-level locks. */
77 /** Number of held top-level extent locks. */
78 int clt_nr_locks_acquired;
82 * Fields used by cl_page.c
84 struct cl_page *clt_pvec[CLT_PVEC_SIZE];
87 * Fields used by cl_io.c
90 * Pointer to the topmost ongoing IO in this thread.
92 struct cl_io *clt_current_io;
95 struct cl_thread_info *cl_env_info(const struct lu_env *env);
97 #endif /* _CL_INTERNAL_H */