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_FAIL_VAL, /* userdata for fail loc */
53 OBD_TIMEOUT, /* RPC timeout before recovery/intr */
54 OBD_DUMP_ON_TIMEOUT, /* dump kernel debug log upon eviction */
55 OBD_MEMUSED, /* bytes currently OBD_ALLOCated */
56 OBD_SYNCFILTER, /* XXX temporary, as we play with sync osts.. */
57 OBD_LDLM_TIMEOUT, /* LDLM timeout for ASTs before client eviction */
58 OBD_DUMP_ON_EVICTION, /* dump kernel debug log upon eviction */
59 OBD_DEBUG_PEER_ON_TIMEOUT, /* dump peer debug when RPC times out */
62 int LL_PROC_PROTO(proc_fail_loc)
65 int old_fail_loc = obd_fail_loc;
67 rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
68 if (old_fail_loc != obd_fail_loc)
69 wake_up(&obd_race_waitq);
73 int LL_PROC_PROTO(proc_set_timeout)
77 rc = ll_proc_dointvec(table, write, filp, buffer, lenp, ppos);
78 if (ldlm_timeout >= obd_timeout)
79 ldlm_timeout = max(obd_timeout / 3, 1U);
83 static cfs_sysctl_table_t obd_table[] = {
85 .ctl_name = OBD_FAIL_LOC,
86 .procname = "fail_loc",
87 .data = &obd_fail_loc,
88 .maxlen = sizeof(int),
90 .proc_handler = &proc_fail_loc
93 .ctl_name = OBD_FAIL_VAL,
94 .procname = "fail_val",
95 .data = &obd_fail_val,
96 .maxlen = sizeof(int),
98 .proc_handler = &proc_dointvec
101 .ctl_name = OBD_TIMEOUT,
102 .procname = "timeout",
103 .data = &obd_timeout,
104 .maxlen = sizeof(int),
106 .proc_handler = &proc_set_timeout
109 .ctl_name = OBD_DEBUG_PEER_ON_TIMEOUT,
110 .procname = "debug_peer_on_timeout",
111 .data = &obd_debug_peer_on_timeout,
112 .maxlen = sizeof(int),
114 .proc_handler = &proc_dointvec
117 .ctl_name = OBD_DUMP_ON_TIMEOUT,
118 .procname = "dump_on_timeout",
119 .data = &obd_dump_on_timeout,
120 .maxlen = sizeof(int),
122 .proc_handler = &proc_dointvec
125 .ctl_name = OBD_DUMP_ON_EVICTION,
126 .procname = "dump_on_eviction",
127 .data = &obd_dump_on_eviction,
128 .maxlen = sizeof(int),
130 .proc_handler = &proc_dointvec
133 .ctl_name = OBD_MEMUSED,
134 .procname = "memused",
135 .data = (int *)&obd_memory.counter,
136 .maxlen = sizeof(int),
138 .proc_handler = &proc_dointvec
141 .ctl_name = OBD_LDLM_TIMEOUT,
142 .procname = "ldlm_timeout",
143 .data = &ldlm_timeout,
144 .maxlen = sizeof(int),
146 .proc_handler = &proc_set_timeout
151 static cfs_sysctl_table_t parent_table[] = {
153 .ctl_name = OBD_SYSCTL,
154 .procname = "lustre",
163 void obd_sysctl_init (void)
166 if ( !obd_table_header )
167 obd_table_header = cfs_register_sysctl_table(parent_table, 0);
171 void obd_sysctl_clean (void)
174 if ( obd_table_header )
175 cfs_unregister_sysctl_table(obd_table_header);
176 obd_table_header = NULL;