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-rw-r--r--Documentation/filesystems/configfs/configfs.txt10
-rw-r--r--Documentation/filesystems/configfs/configfs_example.c14
-rw-r--r--drivers/net/netconsole.c10
-rw-r--r--fs/configfs/dir.c13
-rw-r--r--fs/dlm/config.c45
-rw-r--r--fs/ocfs2/cluster/heartbeat.c17
-rw-r--r--fs/ocfs2/cluster/nodemanager.c45
-rw-r--r--include/linux/configfs.h4
8 files changed, 64 insertions, 94 deletions
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index 15838d706ea2..44c97e6accb2 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -233,12 +233,10 @@ accomplished via the group operations specified on the group's
config_item_type.
struct configfs_group_operations {
- int (*make_item)(struct config_group *group,
- const char *name,
- struct config_item **new_item);
- int (*make_group)(struct config_group *group,
- const char *name,
- struct config_group **new_group);
+ struct config_item *(*make_item)(struct config_group *group,
+ const char *name);
+ struct config_group *(*make_group)(struct config_group *group,
+ const char *name);
int (*commit_item)(struct config_item *item);
void (*disconnect_notify)(struct config_group *group,
struct config_item *item);
diff --git a/Documentation/filesystems/configfs/configfs_example.c b/Documentation/filesystems/configfs/configfs_example.c
index 0b422acd470c..25151fd5c2c6 100644
--- a/Documentation/filesystems/configfs/configfs_example.c
+++ b/Documentation/filesystems/configfs/configfs_example.c
@@ -273,13 +273,13 @@ static inline struct simple_children *to_simple_children(struct config_item *ite
return item ? container_of(to_config_group(item), struct simple_children, group) : NULL;
}
-static int simple_children_make_item(struct config_group *group, const char *name, struct config_item **new_item)
+static struct config_item *simple_children_make_item(struct config_group *group, const char *name)
{
struct simple_child *simple_child;
simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL);
if (!simple_child)
- return -ENOMEM;
+ return NULL;
config_item_init_type_name(&simple_child->item, name,
@@ -287,8 +287,7 @@ static int simple_children_make_item(struct config_group *group, const char *nam
simple_child->storeme = 0;
- *new_item = &simple_child->item;
- return 0;
+ return &simple_child->item;
}
static struct configfs_attribute simple_children_attr_description = {
@@ -360,21 +359,20 @@ static struct configfs_subsystem simple_children_subsys = {
* children of its own.
*/
-static int group_children_make_group(struct config_group *group, const char *name, struct config_group **new_group)
+static struct config_group *group_children_make_group(struct config_group *group, const char *name)
{
struct simple_children *simple_children;
simple_children = kzalloc(sizeof(struct simple_children),
GFP_KERNEL);
if (!simple_children)
- return -ENOMEM;
+ return NULL;
config_group_init_type_name(&simple_children->group, name,
&simple_children_type);
- *new_group = &simple_children->group;
- return 0;
+ return &simple_children->group;
}
static struct configfs_attribute group_children_attr_description = {
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 387a13395015..665341e43055 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -585,9 +585,8 @@ static struct config_item_type netconsole_target_type = {
* Group operations and type for netconsole_subsys.
*/
-static int make_netconsole_target(struct config_group *group,
- const char *name,
- struct config_item **new_item)
+static struct config_item *make_netconsole_target(struct config_group *group,
+ const char *name)
{
unsigned long flags;
struct netconsole_target *nt;
@@ -599,7 +598,7 @@ static int make_netconsole_target(struct config_group *group,
nt = kzalloc(sizeof(*nt), GFP_KERNEL);
if (!nt) {
printk(KERN_ERR "netconsole: failed to allocate memory\n");
- return -ENOMEM;
+ return NULL;
}
nt->np.name = "netconsole";
@@ -616,8 +615,7 @@ static int make_netconsole_target(struct config_group *group,
list_add(&nt->list, &target_list);
spin_unlock_irqrestore(&target_list_lock, flags);
- *new_item = &nt->item;
- return 0;
+ return &nt->item;
}
static void drop_netconsole_target(struct config_group *group,
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 0e64312a084c..614e382a6049 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1073,24 +1073,25 @@ static int configfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
group = NULL;
item = NULL;
if (type->ct_group_ops->make_group) {
- ret = type->ct_group_ops->make_group(to_config_group(parent_item), name, &group);
- if (!ret) {
+ group = type->ct_group_ops->make_group(to_config_group(parent_item), name);
+ if (group) {
link_group(to_config_group(parent_item), group);
item = &group->cg_item;
}
} else {
- ret = type->ct_group_ops->make_item(to_config_group(parent_item), name, &item);
- if (!ret)
+ item = type->ct_group_ops->make_item(to_config_group(parent_item), name);
+ if (item)
link_obj(parent_item, item);
}
mutex_unlock(&subsys->su_mutex);
kfree(name);
- if (ret) {
+ if (!item) {
/*
- * If ret != 0, then link_obj() was never called.
+ * If item == NULL, then link_obj() was never called.
* There are no extra references to clean up.
*/
+ ret = -ENOMEM;
goto out_put;
}
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 492d8caaaf25..eac23bd288b2 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -41,20 +41,16 @@ struct comm;
struct nodes;
struct node;
-static int make_cluster(struct config_group *, const char *,
- struct config_group **);
+static struct config_group *make_cluster(struct config_group *, const char *);
static void drop_cluster(struct config_group *, struct config_item *);
static void release_cluster(struct config_item *);
-static int make_space(struct config_group *, const char *,
- struct config_group **);
+static struct config_group *make_space(struct config_group *, const char *);
static void drop_space(struct config_group *, struct config_item *);
static void release_space(struct config_item *);
-static int make_comm(struct config_group *, const char *,
- struct config_item **);
+static struct config_item *make_comm(struct config_group *, const char *);
static void drop_comm(struct config_group *, struct config_item *);
static void release_comm(struct config_item *);
-static int make_node(struct config_group *, const char *,
- struct config_item **);
+static struct config_item *make_node(struct config_group *, const char *);
static void drop_node(struct config_group *, struct config_item *);
static void release_node(struct config_item *);
@@ -396,8 +392,8 @@ static struct node *to_node(struct config_item *i)
return i ? container_of(i, struct node, item) : NULL;
}
-static int make_cluster(struct config_group *g, const char *name,
- struct config_group **new_g)
+static struct config_group *make_cluster(struct config_group *g,
+ const char *name)
{
struct cluster *cl = NULL;
struct spaces *sps = NULL;
@@ -435,15 +431,14 @@ static int make_cluster(struct config_group *g, const char *name,
space_list = &sps->ss_group;
comm_list = &cms->cs_group;
- *new_g = &cl->group;
- return 0;
+ return &cl->group;
fail:
kfree(cl);
kfree(gps);
kfree(sps);
kfree(cms);
- return -ENOMEM;
+ return NULL;
}
static void drop_cluster(struct config_group *g, struct config_item *i)
@@ -471,8 +466,7 @@ static void release_cluster(struct config_item *i)
kfree(cl);
}
-static int make_space(struct config_group *g, const char *name,
- struct config_group **new_g)
+static struct config_group *make_space(struct config_group *g, const char *name)
{
struct space *sp = NULL;
struct nodes *nds = NULL;
@@ -495,14 +489,13 @@ static int make_space(struct config_group *g, const char *name,
INIT_LIST_HEAD(&sp->members);
mutex_init(&sp->members_lock);
sp->members_count = 0;
- *new_g = &sp->group;
- return 0;
+ return &sp->group;
fail:
kfree(sp);
kfree(gps);
kfree(nds);
- return -ENOMEM;
+ return NULL;
}
static void drop_space(struct config_group *g, struct config_item *i)
@@ -529,21 +522,19 @@ static void release_space(struct config_item *i)
kfree(sp);
}
-static int make_comm(struct config_group *g, const char *name,
- struct config_item **new_i)
+static struct config_item *make_comm(struct config_group *g, const char *name)
{
struct comm *cm;
cm = kzalloc(sizeof(struct comm), GFP_KERNEL);
if (!cm)
- return -ENOMEM;
+ return NULL;
config_item_init_type_name(&cm->item, name, &comm_type);
cm->nodeid = -1;
cm->local = 0;
cm->addr_count = 0;
- *new_i = &cm->item;
- return 0;
+ return &cm->item;
}
static void drop_comm(struct config_group *g, struct config_item *i)
@@ -563,15 +554,14 @@ static void release_comm(struct config_item *i)
kfree(cm);
}
-static int make_node(struct config_group *g, const char *name,
- struct config_item **new_i)
+static struct config_item *make_node(struct config_group *g, const char *name)
{
struct space *sp = to_space(g->cg_item.ci_parent);
struct node *nd;
nd = kzalloc(sizeof(struct node), GFP_KERNEL);
if (!nd)
- return -ENOMEM;
+ return NULL;
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
@@ -583,8 +573,7 @@ static int make_node(struct config_group *g, const char *name,
sp->members_count++;
mutex_unlock(&sp->members_lock);
- *new_i = &nd->item;
- return 0;
+ return &nd->item;
}
static void drop_node(struct config_group *g, struct config_item *i)
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 443d108211ab..f02ccb34604d 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1489,28 +1489,25 @@ static struct o2hb_heartbeat_group *to_o2hb_heartbeat_group(struct config_group
: NULL;
}
-static int o2hb_heartbeat_group_make_item(struct config_group *group,
- const char *name,
- struct config_item **new_item)
+static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *group,
+ const char *name)
{
struct o2hb_region *reg = NULL;
- int ret = 0;
+ struct config_item *ret = NULL;
reg = kzalloc(sizeof(struct o2hb_region), GFP_KERNEL);
- if (reg == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ if (reg == NULL)
+ goto out; /* ENOMEM */
config_item_init_type_name(&reg->hr_item, name, &o2hb_region_type);
- *new_item = &reg->hr_item;
+ ret = &reg->hr_item;
spin_lock(&o2hb_live_lock);
list_add_tail(&reg->hr_all_item, &o2hb_all_regions);
spin_unlock(&o2hb_live_lock);
out:
- if (ret)
+ if (ret == NULL)
kfree(reg);
return ret;
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index b364b7052e46..cfdb08b484ed 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -644,32 +644,27 @@ out:
return ret;
}
-static int o2nm_node_group_make_item(struct config_group *group,
- const char *name,
- struct config_item **new_item)
+static struct config_item *o2nm_node_group_make_item(struct config_group *group,
+ const char *name)
{
struct o2nm_node *node = NULL;
- int ret = 0;
+ struct config_item *ret = NULL;
- if (strlen(name) > O2NM_MAX_NAME_LEN) {
- ret = -ENAMETOOLONG;
- goto out;
- }
+ if (strlen(name) > O2NM_MAX_NAME_LEN)
+ goto out; /* ENAMETOOLONG */
node = kzalloc(sizeof(struct o2nm_node), GFP_KERNEL);
- if (node == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ if (node == NULL)
+ goto out; /* ENOMEM */
strcpy(node->nd_name, name); /* use item.ci_namebuf instead? */
config_item_init_type_name(&node->nd_item, name, &o2nm_node_type);
spin_lock_init(&node->nd_lock);
- *new_item = &node->nd_item;
+ ret = &node->nd_item;
out:
- if (ret)
+ if (ret == NULL)
kfree(node);
return ret;
@@ -756,31 +751,25 @@ static struct o2nm_cluster_group *to_o2nm_cluster_group(struct config_group *gro
}
#endif
-static int o2nm_cluster_group_make_group(struct config_group *group,
- const char *name,
- struct config_group **new_group)
+static struct config_group *o2nm_cluster_group_make_group(struct config_group *group,
+ const char *name)
{
struct o2nm_cluster *cluster = NULL;
struct o2nm_node_group *ns = NULL;
- struct config_group *o2hb_group = NULL;
+ struct config_group *o2hb_group = NULL, *ret = NULL;
void *defs = NULL;
- int ret = 0;
/* this runs under the parent dir's i_mutex; there can be only
* one caller in here at a time */
- if (o2nm_single_cluster) {
- ret = -ENOSPC;
- goto out;
- }
+ if (o2nm_single_cluster)
+ goto out; /* ENOSPC */
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) {
- ret = -ENOMEM;
+ if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL)
goto out;
- }
config_group_init_type_name(&cluster->cl_group, name,
&o2nm_cluster_type);
@@ -797,11 +786,11 @@ static int o2nm_cluster_group_make_group(struct config_group *group,
cluster->cl_idle_timeout_ms = O2NET_IDLE_TIMEOUT_MS_DEFAULT;
cluster->cl_keepalive_delay_ms = O2NET_KEEPALIVE_DELAY_MS_DEFAULT;
- *new_group = &cluster->cl_group;
+ ret = &cluster->cl_group;
o2nm_single_cluster = cluster;
out:
- if (ret) {
+ if (ret == NULL) {
kfree(cluster);
kfree(ns);
o2hb_free_hb_set(o2hb_group);
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 0488f937634a..3ae65b1bf90f 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -165,8 +165,8 @@ struct configfs_item_operations {
};
struct configfs_group_operations {
- int (*make_item)(struct config_group *group, const char *name, struct config_item **new_item);
- int (*make_group)(struct config_group *group, const char *name, struct config_group **new_group);
+ struct config_item *(*make_item)(struct config_group *group, const char *name);
+ struct config_group *(*make_group)(struct config_group *group, const char *name);
int (*commit_item)(struct config_item *item);
void (*disconnect_notify)(struct config_group *group, struct config_item *item);
void (*drop_item)(struct config_group *group, struct config_item *item);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 22:42:06 +0000