From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
This patch adds fabric independent struct config_item_type tfc_discovery_cit to
to target_core_register_fabric() and include/target/target_core_configfs.h:target_fabric_configfs_template
in order to use statically allocated default groups from struct target_fabric_configfs->tf_default_groups[]
for the discovery authentication group in /sys/kernel/config/target/$FABRIC/discovery_auth.
This patch also adds TF_DISC_ATTR() and TF_DISC_ATTR_RO() macros in include/target/target_core_fabric_configfs.h
that are used by fabric module configfs code when setting up fabric dependent attributes for
/sys/kernel/config/target/$FABRIC/discovery_auth.
Also, this patch removes the legacy v3.x method via struct target_fabric_configfs->reg_default_groups_callback()
Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_configfs.c | 25 +++++++++++++++++--------
include/target/target_core_configfs.h | 4 +++-
include/target/target_core_fabric_configfs.h | 12 ++++++++++++
3 files changed, 32 insertions(+), 9 deletions(-)
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 3d25b61..8655fbf 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -189,14 +189,15 @@ static struct config_group *target_core_register_fabric(
*/
printk(KERN_INFO "Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n",
&TF_CIT_TMPL(tf)->tfc_wwn_cit);
+
+ tf->tf_group.default_groups = tf->tf_default_groups;
+ tf->tf_group.default_groups[0] = &tf->tf_disc_group;
+ tf->tf_group.default_groups[1] = NULL;
+
config_group_init_type_name(&tf->tf_group, name,
&TF_CIT_TMPL(tf)->tfc_wwn_cit);
- /*
- * Setup any default configfs groups in the top level directory of
- * this fabric module.
- */
- if (tf->reg_default_groups_callback != NULL)
- tf->reg_default_groups_callback(tf);
+ config_group_init_type_name(&tf->tf_disc_group, "discovery_auth",
+ &TF_CIT_TMPL(tf)->tfc_discovery_cit);
printk(KERN_INFO "Target_Core_ConfigFS: REGISTER -> Allocated Fabric:"
" %s\n", tf->tf_group.cg_item.ci_name);
@@ -220,6 +221,9 @@ static void target_core_deregister_fabric(
{
struct target_fabric_configfs *tf = container_of(
to_config_group(item), struct target_fabric_configfs, tf_group);
+ struct config_group *tf_group;
+ struct config_item *df_item;
+ int i;
printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Looking up %s in"
" tf list\n", config_item_name(item));
@@ -234,6 +238,13 @@ static void target_core_deregister_fabric(
printk(KERN_INFO "Target_Core_ConfigFS: DEREGISTER -> Releasing ci"
" %s\n", config_item_name(item));
+
+ tf_group = &tf->tf_group;
+ for (i = 0; tf_group->default_groups[i]; i++) {
+ df_item = &tf_group->default_groups[i]->cg_item;
+ tf_group->default_groups[i] = NULL;
+ config_item_put(df_item);
+ }
config_item_put(item);
}
@@ -344,7 +355,6 @@ void target_fabric_configfs_free(
list_del(&tf->tf_list);
mutex_unlock(&g_tf_lock);
- kfree(tf->tf_group.default_groups);
kfree(tf);
}
EXPORT_SYMBOL(target_fabric_configfs_free);
@@ -443,7 +453,6 @@ void target_fabric_configfs_deregister(
" %s\n", tf->tf_name);
tf->tf_module = NULL;
tf->tf_subsys = NULL;
- kfree(tf->tf_group.default_groups);
kfree(tf);
printk("<<<<<<<<<<<<<<<<<<<<<< END FABRIC API >>>>>>>>>>>>>>>>>"
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
index 0a5a8a4..28565a1 100644
--- a/include/target/target_core_configfs.h
+++ b/include/target/target_core_configfs.h
@@ -44,6 +44,7 @@ extern int target_core_init_configfs(void);
extern void target_core_exit_configfs(void);
struct target_fabric_configfs_template {
+ struct config_item_type tfc_discovery_cit;
struct config_item_type tfc_wwn_cit;
struct config_item_type tfc_tpg_cit;
struct config_item_type tfc_tpg_base_cit;
@@ -59,9 +60,10 @@ struct target_fabric_configfs_template {
struct target_fabric_configfs {
char tf_name[TARGET_FABRIC_NAME_SIZE];
atomic_t tf_access_cnt;
- void (*reg_default_groups_callback)(struct target_fabric_configfs *);
struct list_head tf_list;
struct config_group tf_group;
+ struct config_group tf_disc_group;
+ struct config_group *tf_default_groups[2];
/* Pointer to fabric's config_item */
struct config_item *tf_fabric;
/* Passed from fabric modules */
diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h
index 6d177ca..f876f56 100644
--- a/include/target/target_core_fabric_configfs.h
+++ b/include/target/target_core_fabric_configfs.h
@@ -47,4 +47,16 @@ static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \
__CONFIGFS_EATTR_RO(_name, \
_fabric##_wwn_show_attr_##_name);
+CONFIGFS_EATTR_STRUCT(target_fabric_discovery, target_fabric_configfs);
+#define TF_DISC_ATTR(_fabric, _name, _mode) \
+static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
+ __CONFIGFS_EATTR(_name, _mode, \
+ _fabric##_disc_show_##_name, \
+ _fabric##_disc_store_##_name);
+
+#define TF_DISC_ATTR_RO(_fabric, _name) \
+static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
+ __CONFIGFS_EATTR_RO(_name, \
+ _fabric##_disc_show_##_name);
+
extern int target_fabric_setup_cits(struct target_fabric_configfs *);
--
1.5.6.5
--
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