*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
-** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
static void drop_node(struct config_group *, struct config_item *);
static void release_node(struct config_item *);
+static ssize_t show_cluster(struct config_item *i, struct configfs_attribute *a,
+ char *buf);
+static ssize_t store_cluster(struct config_item *i,
+ struct configfs_attribute *a,
+ const char *buf, size_t len);
static ssize_t show_comm(struct config_item *i, struct configfs_attribute *a,
char *buf);
static ssize_t store_comm(struct config_item *i, struct configfs_attribute *a,
static ssize_t node_weight_read(struct node *nd, char *buf);
static ssize_t node_weight_write(struct node *nd, const char *buf, size_t len);
+struct cluster {
+ struct config_group group;
+ unsigned int cl_tcp_port;
+ unsigned int cl_buffer_size;
+ unsigned int cl_rsbtbl_size;
+ unsigned int cl_lkbtbl_size;
+ unsigned int cl_dirtbl_size;
+ unsigned int cl_recover_timer;
+ unsigned int cl_toss_secs;
+ unsigned int cl_scan_secs;
+ unsigned int cl_log_debug;
+ unsigned int cl_protocol;
+ unsigned int cl_timewarn_cs;
+};
+
+enum {
+ CLUSTER_ATTR_TCP_PORT = 0,
+ CLUSTER_ATTR_BUFFER_SIZE,
+ CLUSTER_ATTR_RSBTBL_SIZE,
+ CLUSTER_ATTR_LKBTBL_SIZE,
+ CLUSTER_ATTR_DIRTBL_SIZE,
+ CLUSTER_ATTR_RECOVER_TIMER,
+ CLUSTER_ATTR_TOSS_SECS,
+ CLUSTER_ATTR_SCAN_SECS,
+ CLUSTER_ATTR_LOG_DEBUG,
+ CLUSTER_ATTR_PROTOCOL,
+ CLUSTER_ATTR_TIMEWARN_CS,
+};
+
+struct cluster_attribute {
+ struct configfs_attribute attr;
+ ssize_t (*show)(struct cluster *, char *);
+ ssize_t (*store)(struct cluster *, const char *, size_t);
+};
+
+static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field,
+ unsigned int *info_field, int check_zero,
+ const char *buf, size_t len)
+{
+ unsigned int x;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ x = simple_strtoul(buf, NULL, 0);
+
+ if (check_zero && !x)
+ return -EINVAL;
+
+ *cl_field = x;
+ *info_field = x;
+
+ return len;
+}
+
+#define __CONFIGFS_ATTR(_name,_mode,_read,_write) { \
+ .attr = { .ca_name = __stringify(_name), \
+ .ca_mode = _mode, \
+ .ca_owner = THIS_MODULE }, \
+ .show = _read, \
+ .store = _write, \
+}
+
+#define CLUSTER_ATTR(name, check_zero) \
+static ssize_t name##_write(struct cluster *cl, const char *buf, size_t len) \
+{ \
+ return cluster_set(cl, &cl->cl_##name, &dlm_config.ci_##name, \
+ check_zero, buf, len); \
+} \
+static ssize_t name##_read(struct cluster *cl, char *buf) \
+{ \
+ return snprintf(buf, PAGE_SIZE, "%u\n", cl->cl_##name); \
+} \
+static struct cluster_attribute cluster_attr_##name = \
+__CONFIGFS_ATTR(name, 0644, name##_read, name##_write)
+
+CLUSTER_ATTR(tcp_port, 1);
+CLUSTER_ATTR(buffer_size, 1);
+CLUSTER_ATTR(rsbtbl_size, 1);
+CLUSTER_ATTR(lkbtbl_size, 1);
+CLUSTER_ATTR(dirtbl_size, 1);
+CLUSTER_ATTR(recover_timer, 1);
+CLUSTER_ATTR(toss_secs, 1);
+CLUSTER_ATTR(scan_secs, 1);
+CLUSTER_ATTR(log_debug, 0);
+CLUSTER_ATTR(protocol, 0);
+CLUSTER_ATTR(timewarn_cs, 1);
+
+static struct configfs_attribute *cluster_attrs[] = {
+ [CLUSTER_ATTR_TCP_PORT] = &cluster_attr_tcp_port.attr,
+ [CLUSTER_ATTR_BUFFER_SIZE] = &cluster_attr_buffer_size.attr,
+ [CLUSTER_ATTR_RSBTBL_SIZE] = &cluster_attr_rsbtbl_size.attr,
+ [CLUSTER_ATTR_LKBTBL_SIZE] = &cluster_attr_lkbtbl_size.attr,
+ [CLUSTER_ATTR_DIRTBL_SIZE] = &cluster_attr_dirtbl_size.attr,
+ [CLUSTER_ATTR_RECOVER_TIMER] = &cluster_attr_recover_timer.attr,
+ [CLUSTER_ATTR_TOSS_SECS] = &cluster_attr_toss_secs.attr,
+ [CLUSTER_ATTR_SCAN_SECS] = &cluster_attr_scan_secs.attr,
+ [CLUSTER_ATTR_LOG_DEBUG] = &cluster_attr_log_debug.attr,
+ [CLUSTER_ATTR_PROTOCOL] = &cluster_attr_protocol.attr,
+ [CLUSTER_ATTR_TIMEWARN_CS] = &cluster_attr_timewarn_cs.attr,
+ NULL,
+};
+
enum {
COMM_ATTR_NODEID = 0,
COMM_ATTR_LOCAL,
struct configfs_subsystem subsys;
};
-struct cluster {
- struct config_group group;
-};
-
struct spaces {
struct config_group ss_group;
};
static struct configfs_item_operations cluster_ops = {
.release = release_cluster,
+ .show_attribute = show_cluster,
+ .store_attribute = store_cluster,
};
static struct configfs_group_operations spaces_ops = {
static struct config_item_type cluster_type = {
.ct_item_ops = &cluster_ops,
+ .ct_attrs = cluster_attrs,
.ct_owner = THIS_MODULE,
};
cl->group.default_groups[1] = &cms->cs_group;
cl->group.default_groups[2] = NULL;
+ cl->cl_tcp_port = dlm_config.ci_tcp_port;
+ cl->cl_buffer_size = dlm_config.ci_buffer_size;
+ cl->cl_rsbtbl_size = dlm_config.ci_rsbtbl_size;
+ cl->cl_lkbtbl_size = dlm_config.ci_lkbtbl_size;
+ cl->cl_dirtbl_size = dlm_config.ci_dirtbl_size;
+ cl->cl_recover_timer = dlm_config.ci_recover_timer;
+ cl->cl_toss_secs = dlm_config.ci_toss_secs;
+ cl->cl_scan_secs = dlm_config.ci_scan_secs;
+ cl->cl_log_debug = dlm_config.ci_log_debug;
+ cl->cl_protocol = dlm_config.ci_protocol;
+ cl->cl_timewarn_cs = dlm_config.ci_timewarn_cs;
+
space_list = &sps->ss_group;
comm_list = &cms->cs_group;
return &cl->group;
* Functions for user space to read/write attributes
*/
+static ssize_t show_cluster(struct config_item *i, struct configfs_attribute *a,
+ char *buf)
+{
+ struct cluster *cl = to_cluster(i);
+ struct cluster_attribute *cla =
+ container_of(a, struct cluster_attribute, attr);
+ return cla->show ? cla->show(cl, buf) : 0;
+}
+
+static ssize_t store_cluster(struct config_item *i,
+ struct configfs_attribute *a,
+ const char *buf, size_t len)
+{
+ struct cluster *cl = to_cluster(i);
+ struct cluster_attribute *cla =
+ container_of(a, struct cluster_attribute, attr);
+ return cla->store ? cla->store(cl, buf, len) : -EINVAL;
+}
+
static ssize_t show_comm(struct config_item *i, struct configfs_attribute *a,
char *buf)
{
static struct space *get_space(char *name)
{
+ struct config_item *i;
+
if (!space_list)
return NULL;
- return to_space(config_group_find_obj(space_list, name));
+
+ down(&space_list->cg_subsys->su_sem);
+ i = config_group_find_obj(space_list, name);
+ up(&space_list->cg_subsys->su_sem);
+
+ return to_space(i);
}
static void put_space(struct space *sp)
if (cm->nodeid != nodeid)
continue;
found = 1;
+ config_item_get(i);
break;
} else {
if (!cm->addr_count ||
memcmp(cm->addr[0], addr, sizeof(*addr)))
continue;
found = 1;
+ config_item_get(i);
break;
}
}
up(&clusters_root.subsys.su_sem);
- if (found)
- config_item_get(i);
- else
+ if (!found)
cm = NULL;
return cm;
}
#define DEFAULT_RECOVER_TIMER 5
#define DEFAULT_TOSS_SECS 10
#define DEFAULT_SCAN_SECS 5
+#define DEFAULT_LOG_DEBUG 0
+#define DEFAULT_PROTOCOL 0
+#define DEFAULT_TIMEWARN_CS 500 /* 5 sec = 500 centiseconds */
struct dlm_config_info dlm_config = {
- .tcp_port = DEFAULT_TCP_PORT,
- .buffer_size = DEFAULT_BUFFER_SIZE,
- .rsbtbl_size = DEFAULT_RSBTBL_SIZE,
- .lkbtbl_size = DEFAULT_LKBTBL_SIZE,
- .dirtbl_size = DEFAULT_DIRTBL_SIZE,
- .recover_timer = DEFAULT_RECOVER_TIMER,
- .toss_secs = DEFAULT_TOSS_SECS,
- .scan_secs = DEFAULT_SCAN_SECS
+ .ci_tcp_port = DEFAULT_TCP_PORT,
+ .ci_buffer_size = DEFAULT_BUFFER_SIZE,
+ .ci_rsbtbl_size = DEFAULT_RSBTBL_SIZE,
+ .ci_lkbtbl_size = DEFAULT_LKBTBL_SIZE,
+ .ci_dirtbl_size = DEFAULT_DIRTBL_SIZE,
+ .ci_recover_timer = DEFAULT_RECOVER_TIMER,
+ .ci_toss_secs = DEFAULT_TOSS_SECS,
+ .ci_scan_secs = DEFAULT_SCAN_SECS,
+ .ci_log_debug = DEFAULT_LOG_DEBUG,
+ .ci_protocol = DEFAULT_PROTOCOL,
+ .ci_timewarn_cs = DEFAULT_TIMEWARN_CS
};
git.openpandora.org / pandora-kernel.git / blobdiff