tree-wide: fix assorted typos all over the place

That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 2e0746d..ca25ee5 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -1004,7 +1004,7 @@
  * iscsi_tcp_task_xmit - xmit normal PDU task
  * @task: iscsi command task
  *
- * We're expected to return 0 when everything was transmitted succesfully,
+ * We're expected to return 0 when everything was transmitted successfully,
  * -EAGAIN if there's still data in the queue, or != 0 for any other kind
  * of error.
  */