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-rw-r--r--fs/configfs/dir.c44
-rw-r--r--fs/configfs/item.c1
-rw-r--r--fs/dlm/config.c38
-rw-r--r--fs/ocfs2/cluster/nodemanager.c22
4 files changed, 33 insertions, 72 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index f419519ec41f..b51ce6778145 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -701,23 +701,29 @@ static int populate_groups(struct config_group *group)
{
struct config_group *new_group;
int ret = 0;
- int i;
-
- if (group->default_groups) {
- for (i = 0; group->default_groups[i]; i++) {
- new_group = group->default_groups[i];
- ret = create_default_group(group, new_group);
- if (ret) {
- detach_groups(group);
- break;
- }
+ list_for_each_entry(new_group, &group->default_groups, group_entry) {
+ ret = create_default_group(group, new_group);
+ if (ret) {
+ detach_groups(group);
+ break;
}
}
return ret;
}
+void configfs_remove_default_groups(struct config_group *group)
+{
+ struct config_group *g, *n;
+
+ list_for_each_entry_safe(g, n, &group->default_groups, group_entry) {
+ list_del(&g->group_entry);
+ config_item_put(&g->cg_item);
+ }
+}
+EXPORT_SYMBOL(configfs_remove_default_groups);
+
/*
* All of link_obj/unlink_obj/link_group/unlink_group require that
* subsys->su_mutex is held.
@@ -766,15 +772,10 @@ static void link_obj(struct config_item *parent_item, struct config_item *item)
static void unlink_group(struct config_group *group)
{
- int i;
struct config_group *new_group;
- if (group->default_groups) {
- for (i = 0; group->default_groups[i]; i++) {
- new_group = group->default_groups[i];
- unlink_group(new_group);
- }
- }
+ list_for_each_entry(new_group, &group->default_groups, group_entry)
+ unlink_group(new_group);
group->cg_subsys = NULL;
unlink_obj(&group->cg_item);
@@ -782,7 +783,6 @@ static void unlink_group(struct config_group *group)
static void link_group(struct config_group *parent_group, struct config_group *group)
{
- int i;
struct config_group *new_group;
struct configfs_subsystem *subsys = NULL; /* gcc is a turd */
@@ -796,12 +796,8 @@ static void link_group(struct config_group *parent_group, struct config_group *g
BUG();
group->cg_subsys = subsys;
- if (group->default_groups) {
- for (i = 0; group->default_groups[i]; i++) {
- new_group = group->default_groups[i];
- link_group(group, new_group);
- }
- }
+ list_for_each_entry(new_group, &group->default_groups, group_entry)
+ link_group(group, new_group);
}
/*
diff --git a/fs/configfs/item.c b/fs/configfs/item.c
index b863a09cd2f1..8b2a994042dd 100644
--- a/fs/configfs/item.c
+++ b/fs/configfs/item.c
@@ -182,6 +182,7 @@ void config_group_init(struct config_group *group)
{
config_item_init(&group->cg_item);
INIT_LIST_HEAD(&group->cg_children);
+ INIT_LIST_HEAD(&group->default_groups);
}
EXPORT_SYMBOL(config_group_init);
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 8e294fbbac39..519112168a9e 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -346,7 +346,6 @@ static struct config_group *make_cluster(struct config_group *g,
void *gps = NULL;
cl = kzalloc(sizeof(struct dlm_cluster), GFP_NOFS);
- gps = kcalloc(3, sizeof(struct config_group *), GFP_NOFS);
sps = kzalloc(sizeof(struct dlm_spaces), GFP_NOFS);
cms = kzalloc(sizeof(struct dlm_comms), GFP_NOFS);
@@ -357,10 +356,8 @@ static struct config_group *make_cluster(struct config_group *g,
config_group_init_type_name(&sps->ss_group, "spaces", &spaces_type);
config_group_init_type_name(&cms->cs_group, "comms", &comms_type);
- cl->group.default_groups = gps;
- cl->group.default_groups[0] = &sps->ss_group;
- cl->group.default_groups[1] = &cms->cs_group;
- cl->group.default_groups[2] = NULL;
+ configfs_add_default_group(&sps->ss_group, &cl->group);
+ configfs_add_default_group(&cms->cs_group, &cl->group);
cl->cl_tcp_port = dlm_config.ci_tcp_port;
cl->cl_buffer_size = dlm_config.ci_buffer_size;
@@ -383,7 +380,6 @@ static struct config_group *make_cluster(struct config_group *g,
fail:
kfree(cl);
- kfree(gps);
kfree(sps);
kfree(cms);
return ERR_PTR(-ENOMEM);
@@ -392,14 +388,8 @@ static struct config_group *make_cluster(struct config_group *g,
static void drop_cluster(struct config_group *g, struct config_item *i)
{
struct dlm_cluster *cl = config_item_to_cluster(i);
- struct config_item *tmp;
- int j;
- for (j = 0; cl->group.default_groups[j]; j++) {
- tmp = &cl->group.default_groups[j]->cg_item;
- cl->group.default_groups[j] = NULL;
- config_item_put(tmp);
- }
+ configfs_remove_default_groups(&cl->group);
space_list = NULL;
comm_list = NULL;
@@ -410,7 +400,6 @@ static void drop_cluster(struct config_group *g, struct config_item *i)
static void release_cluster(struct config_item *i)
{
struct dlm_cluster *cl = config_item_to_cluster(i);
- kfree(cl->group.default_groups);
kfree(cl);
}
@@ -418,21 +407,17 @@ static struct config_group *make_space(struct config_group *g, const char *name)
{
struct dlm_space *sp = NULL;
struct dlm_nodes *nds = NULL;
- void *gps = NULL;
sp = kzalloc(sizeof(struct dlm_space), GFP_NOFS);
- gps = kcalloc(2, sizeof(struct config_group *), GFP_NOFS);
nds = kzalloc(sizeof(struct dlm_nodes), GFP_NOFS);
- if (!sp || !gps || !nds)
+ if (!sp || !nds)
goto fail;
config_group_init_type_name(&sp->group, name, &space_type);
- config_group_init_type_name(&nds->ns_group, "nodes", &nodes_type);
- sp->group.default_groups = gps;
- sp->group.default_groups[0] = &nds->ns_group;
- sp->group.default_groups[1] = NULL;
+ config_group_init_type_name(&nds->ns_group, "nodes", &nodes_type);
+ configfs_add_default_group(&nds->ns_group, &sp->group);
INIT_LIST_HEAD(&sp->members);
mutex_init(&sp->members_lock);
@@ -441,7 +426,6 @@ static struct config_group *make_space(struct config_group *g, const char *name)
fail:
kfree(sp);
- kfree(gps);
kfree(nds);
return ERR_PTR(-ENOMEM);
}
@@ -449,24 +433,16 @@ static struct config_group *make_space(struct config_group *g, const char *name)
static void drop_space(struct config_group *g, struct config_item *i)
{
struct dlm_space *sp = config_item_to_space(i);
- struct config_item *tmp;
- int j;
/* assert list_empty(&sp->members) */
- for (j = 0; sp->group.default_groups[j]; j++) {
- tmp = &sp->group.default_groups[j]->cg_item;
- sp->group.default_groups[j] = NULL;
- config_item_put(tmp);
- }
-
+ configfs_remove_default_groups(&sp->group);
config_item_put(i);
}
static void release_space(struct config_item *i)
{
struct dlm_space *sp = config_item_to_space(i);
- kfree(sp->group.default_groups);
kfree(sp);
}
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index ebe543894db0..b17d180bdc16 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -630,7 +630,6 @@ static void o2nm_cluster_release(struct config_item *item)
{
struct o2nm_cluster *cluster = to_o2nm_cluster(item);
- kfree(cluster->cl_group.default_groups);
kfree(cluster);
}
@@ -666,7 +665,6 @@ static struct config_group *o2nm_cluster_group_make_group(struct config_group *g
struct o2nm_cluster *cluster = NULL;
struct o2nm_node_group *ns = NULL;
struct config_group *o2hb_group = NULL, *ret = NULL;
- void *defs = NULL;
/* this runs under the parent dir's i_mutex; there can be only
* one caller in here at a time */
@@ -675,20 +673,18 @@ static struct config_group *o2nm_cluster_group_make_group(struct config_group *g
cluster = kzalloc(sizeof(struct o2nm_cluster), GFP_KERNEL);
ns = kzalloc(sizeof(struct o2nm_node_group), GFP_KERNEL);
- defs = kcalloc(3, sizeof(struct config_group *), GFP_KERNEL);
o2hb_group = o2hb_alloc_hb_set();
- if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL)
+ if (cluster == NULL || ns == NULL || o2hb_group == NULL)
goto out;
config_group_init_type_name(&cluster->cl_group, name,
&o2nm_cluster_type);
+ configfs_add_default_group(&ns->ns_group, &cluster->cl_group);
+
config_group_init_type_name(&ns->ns_group, "node",
&o2nm_node_group_type);
+ configfs_add_default_group(o2hb_group, &cluster->cl_group);
- cluster->cl_group.default_groups = defs;
- cluster->cl_group.default_groups[0] = &ns->ns_group;
- cluster->cl_group.default_groups[1] = o2hb_group;
- cluster->cl_group.default_groups[2] = NULL;
rwlock_init(&cluster->cl_nodes_lock);
cluster->cl_node_ip_tree = RB_ROOT;
cluster->cl_reconnect_delay_ms = O2NET_RECONNECT_DELAY_MS_DEFAULT;
@@ -704,7 +700,6 @@ out:
kfree(cluster);
kfree(ns);
o2hb_free_hb_set(o2hb_group);
- kfree(defs);
ret = ERR_PTR(-ENOMEM);
}
@@ -714,18 +709,11 @@ out:
static void o2nm_cluster_group_drop_item(struct config_group *group, struct config_item *item)
{
struct o2nm_cluster *cluster = to_o2nm_cluster(item);
- int i;
- struct config_item *killme;
BUG_ON(o2nm_single_cluster != cluster);
o2nm_single_cluster = NULL;
- for (i = 0; cluster->cl_group.default_groups[i]; i++) {
- killme = &cluster->cl_group.default_groups[i]->cg_item;
- cluster->cl_group.default_groups[i] = NULL;
- config_item_put(killme);
- }
-
+ configfs_remove_default_groups(&cluster->cl_group);
config_item_put(item);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 16:50:51 +0100