1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2004 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #define DEBUG_SUBSYSTEM S_SM
25 #include <linux/module.h>
26 #include <linux/kmod.h>
27 #include <linux/init.h>
29 #include <linux/slab.h>
30 #include <linux/string.h>
31 #include <linux/errno.h>
32 #include <linux/obd_class.h>
33 #include <linux/obd_support.h>
34 #include <linux/lustre_lib.h>
35 #include <linux/lustre_idl.h>
36 #include <linux/lustre_smfs.h>
37 #include "smfs_internal.h"
40 static struct list_head option_list;
41 static char *options = NULL;
42 static char *opt_left = NULL;
44 int init_option(char *data)
46 INIT_LIST_HEAD(&option_list);
47 OBD_ALLOC(options, strlen(data) + 1);
49 CERROR("Can not allocate memory \n");
52 memcpy(options, data, strlen(data));
58 void cleanup_option(void)
60 struct option *option;
61 while (!list_empty(&option_list)) {
62 option = list_entry(option_list.next, struct option, list);
63 list_del(&option->list);
64 OBD_FREE(option->opt, strlen(option->opt) + 1);
66 OBD_FREE(option->value, strlen(option->value) + 1);
67 OBD_FREE(option, sizeof(struct option));
69 OBD_FREE(options, strlen(options) + 1);
72 int get_opt(struct option **option, char **pos)
74 char *name, *value, *left, *tmp;
75 struct option *tmp_opt;
82 left = strchr(opt_left, ',');
86 left = opt_left + strlen(opt_left);
88 OBD_ALLOC(tmp_opt, sizeof(struct option));
90 tmp_opt->value = NULL;
93 while(tmp != left && *tmp != '=') {
97 OBD_ALLOC(name, length + 1);
99 while (opt_left != tmp) *name++ = *opt_left++;
102 /*this option has value*/
103 opt_left ++; /*after '='*/
104 if (left == opt_left) {
105 OBD_FREE(tmp_opt->opt, strlen(tmp_opt->opt) + 1);
106 OBD_FREE(tmp_opt, sizeof(struct option));
110 length = left - opt_left;
111 OBD_ALLOC(value, length + 1);
113 OBD_FREE(tmp_opt->opt, strlen(tmp_opt->opt) + 1);
114 OBD_FREE(tmp_opt, sizeof(struct option));
117 tmp_opt->value = value;
118 while (opt_left != left) *value++ = *opt_left++;
120 list_add(&tmp_opt->list, &option_list);
121 if (*opt_left == ',') opt_left ++; /*after ','*/