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/fs/ntfs/compress.c b/fs/ntfs/compress.c
index 9669541..08f7530 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -927,7 +927,7 @@
 		return 0;
 
 	ntfs_debug("Failed. Returning error code %s.", err == -EOVERFLOW ?
-			"EOVERFLOW" : (!err ? "EIO" : "unkown error"));
+			"EOVERFLOW" : (!err ? "EIO" : "unknown error"));
 	return err < 0 ? err : -EIO;
 
 read_err: