[PATCH] writeback: fix typo in comment

[Julia Lawall]

Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxxx>

---
 fs/fs-writeback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index a1074a26e784..a21d8f1a56d1 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -738,7 +738,7 @@ EXPORT_SYMBOL_GPL(wbc_attach_and_unlock_inode);
  * incorrectly attributed).
  *
  * To resolve this issue, cgroup writeback detects the majority dirtier of
- * an inode and transfers the ownership to it.  To avoid unnnecessary
+ * an inode and transfers the ownership to it.  To avoid unnecessary
  * oscillation, the detection mechanism keeps track of history and gives
  * out the switch verdict only if the foreign usage pattern is stable over
  * a certain amount of time and/or writeback attempts.