[JFFS2][XATTR] Remove 'struct list_head ilist' from jffs2_inode_cache.

This patch can reduce 4-byte of memory usage per inode_cache.

[4/10] jffs2-xattr-v5.1-04-remove_ilist_from_ic.patch

Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index 6f6279c..351d947 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -117,7 +117,7 @@
 	uint32_t ino;
 	int nlink;
 #ifdef CONFIG_JFFS2_FS_XATTR
-	struct list_head ilist;
+	struct jffs2_xattr_ref *xref;
 #endif
 };