fix similar typos to successfull

When I review ocfs2 code, find there are 2 typos to "successfull".  After
doing grep "successfull " in kernel tree, 22 typos found totally -- great
minds always think alike :)

This patch fixes all the similar typos. Thanks for Randy's ack and comments.

Signed-off-by: Coly Li <coyli@suse.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index ea2ce3c..3f54db3 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2536,7 +2536,7 @@
 		 */
 		newdepth = ext_depth(inode);
 		/*
-		 * update the extent length after successfull insert of the
+		 * update the extent length after successful insert of the
 		 * split extent
 		 */
 		orig_ex.ee_len = cpu_to_le16(ee_len -
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index f731ab4..b0c4cad 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1324,7 +1324,7 @@
 			goto out;
 		}
 
-		mlog(0, "lock %s, successfull return from ocfs2_dlm_lock\n",
+		mlog(0, "lock %s, successful return from ocfs2_dlm_lock\n",
 		     lockres->l_name);
 
 		/* At this point we've gone inside the dlm and need to
@@ -2951,7 +2951,7 @@
 		ocfs2_dlm_dump_lksb(&lockres->l_lksb);
 		BUG();
 	}
-	mlog(0, "lock %s, successfull return from ocfs2_dlm_unlock\n",
+	mlog(0, "lock %s, successful return from ocfs2_dlm_unlock\n",
 	     lockres->l_name);
 
 	ocfs2_wait_on_busy_lock(lockres);