ceph: replace list_entry with container_of

Usage of non-list.h list_entry function for container_of
functionality replaced with direct use of container_of.
Signed-off-by: Noah Watkins <noah@noahdesu.com>
Signed-off-by: Sage Weil <sage@newdream.net>

fs/ceph/super.h

@@ -364,7 +364,7 @@ struct ceph_inode_info {
 
 static inline struct ceph_inode_info *ceph_inode(struct inode *inode)
 {
-	return list_entry(inode, struct ceph_inode_info, vfs_inode);
+	return container_of(inode, struct ceph_inode_info, vfs_inode);
 }
 
 static inline void ceph_i_clear(struct inode *inode, unsigned mask)