Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

fs/ocfs2/super.c

@@ -78,7 +78,7 @@ static struct kmem_cache *ocfs2_inode_cachep = NULL;
 struct kmem_cache *ocfs2_dquot_cachep;
 struct kmem_cache *ocfs2_qf_chunk_cachep;
 
-/* OCFS2 needs to schedule several differnt types of work which
+/* OCFS2 needs to schedule several different types of work which
  * require cluster locking, disk I/O, recovery waits, etc. Since these
  * types of work tend to be heavy we avoid using the kernel events
  * workqueue and schedule on our own. */