heirarchy => hierarchy

Signed-off-by: Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com>
---
 Note: No functionality change is intended.
 block/blk-iolatency.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 2f8fdecdd7a9..f2e65fad71da 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -34,7 +34,7 @@
  * throttle "unloved", but nobody else.
  *
  * In this example "fast", "slow", and "normal" will be the only groups actually
- * accounting their io latencies.  We have to walk up the heirarchy to the root
+ * accounting their io latencies.  We have to walk up the hierarchy to the root
  * on every submit and complete so we can do the appropriate stat recording and
  * adjust the queue depth of ourselves if needed.
  *
-- 
2.34.1