target: remove g_device_list

g_device_list is no longer needed because we now use the idr code
for lookups and seaches.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index bd32a0c..3ae8fbf 100644 (file)
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -49,8 +49,8 @@
 #include "target_core_pr.h"
 #include "target_core_ua.h"
 
-DEFINE_MUTEX(g_device_mutex);
-LIST_HEAD(g_device_list);
+DEFINE_MUTEX(device_mutex);
+LIST_HEAD(device_list);
 static DEFINE_IDR(devices_idr);
 
 static struct se_hba *lun0_hba;
@@ -773,7 +773,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
        INIT_LIST_HEAD(&dev->delayed_cmd_list);
        INIT_LIST_HEAD(&dev->state_list);
        INIT_LIST_HEAD(&dev->qf_cmd_list);
-       INIT_LIST_HEAD(&dev->g_dev_node);
        spin_lock_init(&dev->execute_task_lock);
        spin_lock_init(&dev->delayed_cmd_lock);
        spin_lock_init(&dev->dev_reservation_lock);
@@ -895,11 +894,11 @@ struct se_device *target_find_device(int id, bool do_depend)
 {
        struct se_device *dev;
 
-       mutex_lock(&g_device_mutex);
+       mutex_lock(&device_mutex);
        dev = idr_find(&devices_idr, id);
        if (dev && do_depend && target_depend_item(&dev->dev_group.cg_item))
                dev = NULL;
-       mutex_unlock(&g_device_mutex);
+       mutex_unlock(&device_mutex);
        return dev;
 }
 EXPORT_SYMBOL(target_find_device);
@@ -943,9 +942,9 @@ int target_for_each_device(int (*fn)(struct se_device *dev, void *data),
        iter.fn = fn;
        iter.data = data;
 
-       mutex_lock(&g_device_mutex);
+       mutex_lock(&device_mutex);
        ret = idr_for_each(&devices_idr, target_devices_idr_iter, &iter);
-       mutex_unlock(&g_device_mutex);
+       mutex_unlock(&device_mutex);
        return ret;
 }
 
@@ -964,13 +963,13 @@ int target_configure_device(struct se_device *dev)
         * Add early so modules like tcmu can use during its
         * configuration.
         */
-       mutex_lock(&g_device_mutex);
+       mutex_lock(&device_mutex);
        /*
         * Use cyclic to try and avoid collisions with devices
         * that were recently removed.
         */
        id = idr_alloc_cyclic(&devices_idr, dev, 0, INT_MAX, GFP_KERNEL);
-       mutex_unlock(&g_device_mutex);
+       mutex_unlock(&device_mutex);
        if (id < 0) {
                ret = -ENOMEM;
                goto out;
@@ -1036,10 +1035,6 @@ int target_configure_device(struct se_device *dev)
        hba->dev_count++;
        spin_unlock(&hba->device_lock);
 
-       mutex_lock(&g_device_mutex);
-       list_add_tail(&dev->g_dev_node, &g_device_list);
-       mutex_unlock(&g_device_mutex);
-
        dev->dev_flags |= DF_CONFIGURED;
 
        return 0;
@@ -1047,9 +1042,9 @@ int target_configure_device(struct se_device *dev)
 out_free_alua:
        core_alua_free_lu_gp_mem(dev);
 out_free_index:
-       mutex_lock(&g_device_mutex);
+       mutex_lock(&device_mutex);
        idr_remove(&devices_idr, dev->dev_index);
-       mutex_unlock(&g_device_mutex);
+       mutex_unlock(&device_mutex);
 out:
        se_release_vpd_for_dev(dev);
        return ret;
@@ -1066,10 +1061,9 @@ void target_free_device(struct se_device *dev)
 
                dev->transport->destroy_device(dev);
 
-               mutex_lock(&g_device_mutex);
+               mutex_lock(&device_mutex);
                idr_remove(&devices_idr, dev->dev_index);
-               list_del(&dev->g_dev_node);
-               mutex_unlock(&g_device_mutex);
+               mutex_unlock(&device_mutex);
 
                spin_lock(&hba->device_lock);
                hba->dev_count--;

diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 1d3ac02..f30e8ac 100644 (file)
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -56,9 +56,6 @@ struct target_fabric_configfs {
 extern struct t10_alua_lu_gp *default_lu_gp;
 
 /* target_core_device.c */
-extern struct mutex g_device_mutex;
-extern struct list_head g_device_list;
-
 int    core_alloc_rtpi(struct se_lun *lun, struct se_device *dev);
 struct se_dev_entry *core_get_se_deve_from_rtpi(struct se_node_acl *, u16);
 void   target_pr_kref_release(struct kref *);

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 51a92f1..516764f 100644 (file)
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -796,7 +796,6 @@ struct se_device {
        struct list_head        delayed_cmd_list;
        struct list_head        state_list;
        struct list_head        qf_cmd_list;
-       struct list_head        g_dev_node;
        /* Pointer to associated SE HBA */
        struct se_hba           *se_hba;
        /* T10 Inquiry and VPD WWN Information */