drbd: Improve some function and variable naming

Rename functions
conn_destroy() -> drbd_destroy_connection(),
drbd_minor_destroy() -> drbd_destroy_device()
drbd_adm_add_minor() -> drbd_adm_add_minor()
drbd_adm_delete_minor() -> drbd_adm_del_minor()

Rename global variable minors to drbd_devices

Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>

7 files changed, 47 insertions, 47 deletions

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 85e2f4b56a06..b324314768fd 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -166,7 +166,7 @@ drbd_insert_fault(struct drbd_device *device, unsigned int type) {
 #define div_floor(A, B) ((A)/(B))
 
 extern struct ratelimit_state drbd_ratelimit_state;
-extern struct idr minors; /* RCU, updates: genl_lock() */
+extern struct idr drbd_devices; /* RCU, updates: genl_lock() */
 extern struct list_head drbd_connections; /* RCU, updates: genl_lock() */
 
 extern const char *cmdname(enum drbd_packet cmd);
@@ -771,7 +771,7 @@ struct drbd_device {
 
 static inline struct drbd_device *minor_to_device(unsigned int minor)
 {
-        return (struct drbd_device *)idr_find(&minors, minor);
+        return (struct drbd_device *)idr_find(&drbd_devices, minor);
 }
 
 static inline struct drbd_peer_device *first_peer_device(struct drbd_device *device)
@@ -1175,11 +1175,11 @@ extern rwlock_t global_state_lock;
 
 extern int conn_lowest_minor(struct drbd_connection *connection);
 enum drbd_ret_code drbd_create_minor(struct drbd_connection *connection, unsigned int minor, int vnr);
-extern void drbd_minor_destroy(struct kref *kref);
+extern void drbd_destroy_device(struct kref *kref);
 
 extern int set_resource_options(struct drbd_connection *connection, struct res_opts *res_opts);
 extern struct drbd_connection *conn_create(const char *name, struct res_opts *res_opts);
-extern void conn_destroy(struct kref *kref);
+extern void drbd_destroy_connection(struct kref *kref);
 struct drbd_connection *conn_get_by_name(const char *name);
 extern struct drbd_connection *conn_get_by_addrs(void *my_addr, int my_addr_len,
                                             void *peer_addr, int peer_addr_len);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index b7c858f51fa6..4da017d22f4b 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -117,7 +117,7 @@ module_param_string(usermode_helper, usermode_helper, sizeof(usermode_helper), 0
 /* in 2.6.x, our device mapping and config info contains our virtual gendisks
  * as member "struct gendisk *vdisk;"
  */
-struct idr minors;
+struct idr drbd_devices;
 struct list_head drbd_connections;  /* list of struct drbd_connection */
 
 struct kmem_cache *drbd_request_cache;
@@ -364,7 +364,7 @@ restart:
 
         /* Release mod reference taken when thread was started */
 
-        kref_put(&connection->kref, &conn_destroy);
+        kref_put(&connection->kref, drbd_destroy_connection);
         module_put(THIS_MODULE);
         return retval;
 }
@@ -416,7 +416,7 @@ int drbd_thread_start(struct drbd_thread *thi)
                 if (IS_ERR(nt)) {
                         conn_err(connection, "Couldn't start thread\n");
 
-                        kref_put(&connection->kref, &conn_destroy);
+                        kref_put(&connection->kref, drbd_destroy_connection);
                         module_put(THIS_MODULE);
                         return false;
                 }
@@ -2158,7 +2158,7 @@ static void drbd_release_all_peer_reqs(struct drbd_device *device)
 }
 
 /* caution. no locking. */
-void drbd_minor_destroy(struct kref *kref)
+void drbd_destroy_device(struct kref *kref)
 {
         struct drbd_device *device = container_of(kref, struct drbd_device, kref);
         struct drbd_connection *connection = first_peer_device(device)->connection;
@@ -2195,7 +2195,7 @@ void drbd_minor_destroy(struct kref *kref)
         kfree(first_peer_device(device));
         kfree(device);
 
-        kref_put(&connection->kref, &conn_destroy);
+        kref_put(&connection->kref, drbd_destroy_connection);
 }
 
 /* One global retry thread, if we need to push back some bio and have it
@@ -2301,26 +2301,26 @@ static void drbd_cleanup(void)
 
         drbd_genl_unregister();
 
-        idr_for_each_entry(&minors, device, i) {
-                idr_remove(&minors, device_to_minor(device));
+        idr_for_each_entry(&drbd_devices, device, i) {
+                idr_remove(&drbd_devices, device_to_minor(device));
                 idr_remove(&first_peer_device(device)->connection->volumes, device->vnr);
                 destroy_workqueue(device->submit.wq);
                 del_gendisk(device->vdisk);
                 /* synchronize_rcu(); No other threads running at this point */
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
         }
 
         /* not _rcu since, no other updater anymore. Genl already unregistered */
         list_for_each_entry_safe(connection, tmp, &drbd_connections, connections) {
                 list_del(&connection->connections); /* not _rcu no proc, not other threads */
                 /* synchronize_rcu(); */
-                kref_put(&connection->kref, &conn_destroy);
+                kref_put(&connection->kref, drbd_destroy_connection);
         }
 
         drbd_destroy_mempools();
         unregister_blkdev(DRBD_MAJOR, "drbd");
 
-        idr_destroy(&minors);
+        idr_destroy(&drbd_devices);
 
         printk(KERN_INFO "drbd: module cleanup done.\n");
 }
@@ -2576,7 +2576,7 @@ fail:
         return NULL;
 }
 
-void conn_destroy(struct kref *kref)
+void drbd_destroy_connection(struct kref *kref)
 {
         struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);
 
@@ -2688,7 +2688,7 @@ enum drbd_ret_code drbd_create_minor(struct drbd_connection *connection, unsigne
         device->read_requests = RB_ROOT;
         device->write_requests = RB_ROOT;
 
-        minor_got = idr_alloc(&minors, device, minor, minor + 1, GFP_KERNEL);
+        minor_got = idr_alloc(&drbd_devices, device, minor, minor + 1, GFP_KERNEL);
         if (minor_got < 0) {
                 if (minor_got == -ENOSPC) {
                         err = ERR_MINOR_EXISTS;
@@ -2725,7 +2725,7 @@ enum drbd_ret_code drbd_create_minor(struct drbd_connection *connection, unsigne
 out_idr_remove_vol:
         idr_remove(&connection->volumes, vnr_got);
 out_idr_remove_minor:
-        idr_remove(&minors, minor_got);
+        idr_remove(&drbd_devices, minor_got);
         synchronize_rcu();
 out_no_minor_idr:
         drbd_bm_cleanup(device);
@@ -2736,7 +2736,7 @@ out_no_io_page:
 out_no_disk:
         blk_cleanup_queue(q);
 out_no_q:
-        kref_put(&connection->kref, &conn_destroy);
+        kref_put(&connection->kref, drbd_destroy_connection);
 out_no_peer_device:
         kfree(device);
         return err;
@@ -2772,7 +2772,7 @@ int __init drbd_init(void)
         init_waitqueue_head(&drbd_pp_wait);
 
         drbd_proc = NULL; /* play safe for drbd_cleanup */
-        idr_init(&minors);
+        idr_init(&drbd_devices);
 
         rwlock_init(&global_state_lock);
         INIT_LIST_HEAD(&drbd_connections);
@@ -2863,7 +2863,7 @@ void conn_md_sync(struct drbd_connection *connection)
                 kref_get(&device->kref);
                 rcu_read_unlock();
                 drbd_md_sync(device);
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
                 rcu_read_lock();
         }
         rcu_read_unlock();
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index a8c9c86e29f5..83d8c18fb84c 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -45,8 +45,8 @@
 // int drbd_adm_create_resource(struct sk_buff *skb, struct genl_info *info);
 // int drbd_adm_delete_resource(struct sk_buff *skb, struct genl_info *info);
 
-int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info);
-int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info);
+int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info);
+int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info);
 
 int drbd_adm_new_resource(struct sk_buff *skb, struct genl_info *info);
 int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info);
@@ -274,7 +274,7 @@ fail:
 static int drbd_adm_finish(struct genl_info *info, int retcode)
 {
         if (adm_ctx.connection) {
-                kref_put(&adm_ctx.connection->kref, &conn_destroy);
+                kref_put(&adm_ctx.connection->kref, drbd_destroy_connection);
                 adm_ctx.connection = NULL;
         }
 
@@ -517,7 +517,7 @@ static int _try_outdate_peer_async(void *data)
 
         conn_try_outdate_peer(connection);
 
-        kref_put(&connection->kref, &conn_destroy);
+        kref_put(&connection->kref, drbd_destroy_connection);
         return 0;
 }
 
@@ -529,7 +529,7 @@ void conn_try_outdate_peer_async(struct drbd_connection *connection)
         opa = kthread_run(_try_outdate_peer_async, connection, "drbd_async_h");
         if (IS_ERR(opa)) {
                 conn_err(connection, "out of mem, failed to invoke fence-peer helper\n");
-                kref_put(&connection->kref, &conn_destroy);
+                kref_put(&connection->kref, drbd_destroy_connection);
         }
 }
 
@@ -2924,7 +2924,7 @@ static int get_one_status(struct sk_buff *skb, struct netlink_callback *cb)
          * on each iteration.
          */
 
-        /* synchronize with conn_create()/conn_destroy() */
+        /* synchronize with conn_create()/drbd_destroy_connection() */
         rcu_read_lock();
         /* revalidate iterator position */
         list_for_each_entry_rcu(tmp, &drbd_connections, connections) {
@@ -3056,7 +3056,7 @@ int drbd_adm_get_status_all(struct sk_buff *skb, struct netlink_callback *cb)
         if (!connection)
                 return -ENODEV;
 
-        kref_put(&connection->kref, &conn_destroy); /* get_one_status() (re)validates connection by itself */
+        kref_put(&connection->kref, drbd_destroy_connection); /* get_one_status() (re)validates connection by itself */
 
         /* prime iterators, and set "filter" mode mark:
          * only dump this connection. */
@@ -3266,7 +3266,7 @@ out:
         return 0;
 }
 
-int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info)
+int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info)
 {
         struct drbd_genlmsghdr *dh = info->userhdr;
         enum drbd_ret_code retcode;
@@ -3303,7 +3303,7 @@ out:
         return 0;
 }
 
-static enum drbd_ret_code adm_delete_minor(struct drbd_device *device)
+static enum drbd_ret_code adm_del_minor(struct drbd_device *device)
 {
         if (device->state.disk == D_DISKLESS &&
             /* no need to be device->state.conn == C_STANDALONE &&
@@ -3313,17 +3313,17 @@ static enum drbd_ret_code adm_delete_minor(struct drbd_device *device)
                 _drbd_request_state(device, NS(conn, C_WF_REPORT_PARAMS),
                                     CS_VERBOSE + CS_WAIT_COMPLETE);
                 idr_remove(&first_peer_device(device)->connection->volumes, device->vnr);
-                idr_remove(&minors, device_to_minor(device));
+                idr_remove(&drbd_devices, device_to_minor(device));
                 destroy_workqueue(device->submit.wq);
                 del_gendisk(device->vdisk);
                 synchronize_rcu();
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
                 return NO_ERROR;
         } else
                 return ERR_MINOR_CONFIGURED;
 }
 
-int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info)
+int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info)
 {
         enum drbd_ret_code retcode;
 
@@ -3333,7 +3333,7 @@ int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info)
         if (retcode != NO_ERROR)
                 goto out;
 
-        retcode = adm_delete_minor(adm_ctx.device);
+        retcode = adm_del_minor(adm_ctx.device);
 out:
         drbd_adm_finish(info, retcode);
         return 0;
@@ -3389,7 +3389,7 @@ int drbd_adm_down(struct sk_buff *skb, struct genl_info *info)
 
         /* delete volumes */
         idr_for_each_entry(&adm_ctx.connection->volumes, device, i) {
-                retcode = adm_delete_minor(device);
+                retcode = adm_del_minor(device);
                 if (retcode != NO_ERROR) {
                         /* "can not happen" */
                         drbd_msg_put_info("failed to delete volume");
@@ -3401,7 +3401,7 @@ int drbd_adm_down(struct sk_buff *skb, struct genl_info *info)
         if (conn_lowest_minor(adm_ctx.connection) < 0) {
                 list_del_rcu(&adm_ctx.connection->connections);
                 synchronize_rcu();
-                kref_put(&adm_ctx.connection->kref, &conn_destroy);
+                kref_put(&adm_ctx.connection->kref, drbd_destroy_connection);
 
                 retcode = NO_ERROR;
         } else {
@@ -3428,7 +3428,7 @@ int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info)
         if (conn_lowest_minor(adm_ctx.connection) < 0) {
                 list_del_rcu(&adm_ctx.connection->connections);
                 synchronize_rcu();
-                kref_put(&adm_ctx.connection->kref, &conn_destroy);
+                kref_put(&adm_ctx.connection->kref, drbd_destroy_connection);
 
                 retcode = NO_ERROR;
         } else {
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index f1c81c101fad..2f26e8ffa45b 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -236,7 +236,7 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
         */
 
         rcu_read_lock();
-        idr_for_each_entry(&minors, device, i) {
+        idr_for_each_entry(&drbd_devices, device, i) {
                 if (prev_i != i - 1)
                         seq_printf(seq, "\n");
                 prev_i = i;
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index e08e99f756a5..791005e163db 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1058,7 +1058,7 @@ randomize:
                         clear_bit(DISCARD_MY_DATA, &device->flags);
 
                 drbd_connected(device);
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
                 rcu_read_lock();
         }
         rcu_read_unlock();
@@ -1166,7 +1166,7 @@ static void drbd_flush(struct drbd_connection *connection)
                                 drbd_bump_write_ordering(connection, WO_drain_io);
                         }
                         put_ldev(device);
-                        kref_put(&device->kref, &drbd_minor_destroy);
+                        kref_put(&device->kref, drbd_destroy_device);
 
                         rcu_read_lock();
                         if (rv)
@@ -1409,7 +1409,7 @@ static void conn_wait_active_ee_empty(struct drbd_connection *connection)
                 kref_get(&device->kref);
                 rcu_read_unlock();
                 drbd_wait_ee_list_empty(device, &device->active_ee);
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
                 rcu_read_lock();
         }
         rcu_read_unlock();
@@ -4459,7 +4459,7 @@ static void conn_disconnect(struct drbd_connection *connection)
                 kref_get(&device->kref);
                 rcu_read_unlock();
                 drbd_disconnected(device);
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, &drbd_destroy_device);
                 rcu_read_lock();
         }
         rcu_read_unlock();
@@ -5199,10 +5199,10 @@ static int connection_finish_peer_reqs(struct drbd_connection *connection)
                         kref_get(&device->kref);
                         rcu_read_unlock();
                         if (drbd_finish_peer_reqs(device)) {
-                                kref_put(&device->kref, &drbd_minor_destroy);
+                                kref_put(&device->kref, drbd_destroy_device);
                                 return 1;
                         }
-                        kref_put(&device->kref, &drbd_minor_destroy);
+                        kref_put(&device->kref, drbd_destroy_device);
                         rcu_read_lock();
                 }
                 set_bit(SIGNAL_ASENDER, &connection->flags);
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 22c4e7d57a80..bb3d5947904d 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -1574,7 +1574,7 @@ static int w_after_conn_state_ch(struct drbd_work *w, int unused)
                         spin_unlock_irq(&connection->req_lock);
                 }
         }
-        kref_put(&connection->kref, &conn_destroy);
+        kref_put(&connection->kref, drbd_destroy_connection);
 
         conn_md_sync(connection);
 
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index aa1ad7f39786..378e48c983b3 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1458,7 +1458,7 @@ static int _drbd_pause_after(struct drbd_device *device)
         int i, rv = 0;
 
         rcu_read_lock();
-        idr_for_each_entry(&minors, odev, i) {
+        idr_for_each_entry(&drbd_devices, odev, i) {
                 if (odev->state.conn == C_STANDALONE && odev->state.disk == D_DISKLESS)
                         continue;
                 if (!_drbd_may_sync_now(odev))
@@ -1482,7 +1482,7 @@ static int _drbd_resume_next(struct drbd_device *device)
         int i, rv = 0;
 
         rcu_read_lock();
-        idr_for_each_entry(&minors, odev, i) {
+        idr_for_each_entry(&drbd_devices, odev, i) {
                 if (odev->state.conn == C_STANDALONE && odev->state.disk == D_DISKLESS)
                         continue;
                 if (odev->state.aftr_isp) {
@@ -1939,7 +1939,7 @@ int drbd_worker(struct drbd_thread *thi)
                 kref_get(&device->kref);
                 rcu_read_unlock();
                 drbd_device_cleanup(device);
-                kref_put(&device->kref, &drbd_minor_destroy);
+                kref_put(&device->kref, drbd_destroy_device);
                 rcu_read_lock();
         }
         rcu_read_unlock();