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>

arch/ia64/kernel/esi.c

@@ -84,7 +84,7 @@ static int __init esi_init (void)
 		      case ESI_DESC_ENTRY_POINT:
 			break;
 		      default:
-			printk(KERN_WARNING "Unkown table type %d found in "
+			printk(KERN_WARNING "Unknown table type %d found in "
 			       "ESI table, ignoring rest of table\n", *p);
 			return -ENODEV;
 		}

arch/ia64/kernel/perfmon.c

@@ -3523,7 +3523,7 @@ pfm_use_debug_registers(struct task_struct *task)
  * IA64_THREAD_DBG_VALID set. This indicates a task which was
  * able to use the debug registers for debugging purposes via
  * ptrace(). Therefore we know it was not using them for
- * perfmormance monitoring, so we only decrement the number
+ * performance monitoring, so we only decrement the number
  * of "ptraced" debug register users to keep the count up to date
  */
 int