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/mm/filemap.c b/mm/filemap.c
index ef169f3..c3d3506 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1844,7 +1844,7 @@
 
 /*
  * Copy as much as we can into the page and return the number of bytes which
- * were sucessfully copied.  If a fault is encountered then return the number of
+ * were successfully copied.  If a fault is encountered then return the number of
  * bytes which were copied.
  */
 size_t iov_iter_copy_from_user_atomic(struct page *page,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 7226e60..c31a310 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -209,7 +209,7 @@
 	int	prev_priority;	/* for recording reclaim priority */
 
 	/*
-	 * While reclaiming in a hiearchy, we cache the last child we
+	 * While reclaiming in a hierarchy, we cache the last child we
 	 * reclaimed from.
 	 */
 	int last_scanned_child;
@@ -2466,7 +2466,7 @@
 
 	cgroup_lock();
 	/*
-	 * If parent's use_hiearchy is set, we can't make any modifications
+	 * If parent's use_hierarchy is set, we can't make any modifications
 	 * in the child subtrees. If it is unset, then the change can
 	 * occur, provided the current cgroup has no children.
 	 *
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index dacc641..1ac49fe 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -174,7 +174,7 @@
 	list_for_each_entry_safe (tk, next, to_kill, nd) {
 		if (doit) {
 			/*
-			 * In case something went wrong with munmaping
+			 * In case something went wrong with munmapping
 			 * make sure the process doesn't catch the
 			 * signal and then access the memory. Just kill it.
 			 * the signal handlers