1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
26 #include <linux/module.h>
27 #include <linux/autoconf.h>
28 #include <linux/sysctl.h>
29 #include <linux/sched.h>
31 #include <linux/sysctl.h>
32 #include <linux/version.h>
33 #include <linux/proc_fs.h>
34 #include <linux/slab.h>
35 #include <linux/stat.h>
36 #include <linux/ctype.h>
37 #include <asm/bitops.h>
38 #include <asm/segment.h>
39 #include <asm/uaccess.h>
40 #include <linux/utsname.h>
42 #define DEBUG_SUBSYSTEM S_CLASS
44 #include <obd_support.h>
46 cfs_sysctl_table_header_t *obd_table_header = NULL;
48 #define OBD_SYSCTL 300
51 OBD_FAIL_LOC = 1, /* control test failures instrumentation */
52 OBD_TIMEOUT, /* RPC timeout before recovery/intr */
53 OBD_DUMP_ON_TIMEOUT, /* dump kernel debug log upon eviction */
54 OBD_MEMUSED, /* bytes currently OBD_ALLOCated */
55 OBD_SYNCFILTER, /* XXX temporary, as we play with sync osts.. */
56 OBD_LDLM_TIMEOUT, /* LDLM timeout for ASTs before client eviction */
57 OBD_DUMP_ON_EVICTION, /* dump kernel debug log upon eviction */
58 OBD_DEBUG_PEER_ON_TIMEOUT, /* dump peer debug when RPC times out */
61 int LL_PROC_PROTO(proc_fail_loc)
64 int old_fail_loc = obd_fail_loc;
66 rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
67 if (old_fail_loc != obd_fail_loc)
68 wake_up(&obd_race_waitq);
72 int LL_PROC_PROTO(proc_set_timeout)
76 rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
77 if (ldlm_timeout >= obd_timeout)
78 ldlm_timeout = max(obd_timeout / 3, 1U);
82 static cfs_sysctl_table_t obd_table[] = {
84 .ctl_name = OBD_FAIL_LOC,
85 .procname = "fail_loc",
86 .data = &obd_fail_loc,
87 .maxlen = sizeof(int),
89 .proc_handler = &proc_fail_loc
92 .ctl_name = OBD_TIMEOUT,
93 .procname = "timeout",
95 .maxlen = sizeof(int),
97 .proc_handler = &proc_set_timeout
100 .ctl_name = OBD_DEBUG_PEER_ON_TIMEOUT,
101 .procname = "debug_peer_on_timeout",
102 .data = &obd_debug_peer_on_timeout,
103 .maxlen = sizeof(int),
105 .proc_handler = &proc_dointvec
108 .ctl_name = OBD_DUMP_ON_TIMEOUT,
109 .procname = "dump_on_timeout",
110 .data = &obd_dump_on_timeout,
111 .maxlen = sizeof(int),
113 .proc_handler = &proc_dointvec
116 .ctl_name = OBD_DUMP_ON_EVICTION,
117 .procname = "dump_on_eviction",
118 .data = &obd_dump_on_eviction,
119 .maxlen = sizeof(int),
121 .proc_handler = &proc_dointvec
124 .ctl_name = OBD_MEMUSED,
125 .procname = "memused",
126 .data = (int *)&obd_memory.counter,
127 .maxlen = sizeof(int),
129 .proc_handler = &proc_dointvec
132 .ctl_name = OBD_LDLM_TIMEOUT,
133 .procname = "ldlm_timeout",
134 .data = &ldlm_timeout,
135 .maxlen = sizeof(int),
137 .proc_handler = &proc_set_timeout
142 static cfs_sysctl_table_t parent_table[] = {
144 .ctl_name = OBD_SYSCTL,
145 .procname = "lustre",
154 void obd_sysctl_init (void)
157 if ( !obd_table_header )
158 obd_table_header = cfs_register_sysctl_table(parent_table, 0);
162 void obd_sysctl_clean (void)
165 if ( obd_table_header )
166 cfs_unregister_sysctl_table(obd_table_header);
167 obd_table_header = NULL;