zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/fs/jffs2/xattr_user.c b/ap/os/linux/linux-3.4.x/fs/jffs2/xattr_user.c
new file mode 100644
index 0000000..916b5c9
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/jffs2/xattr_user.c
@@ -0,0 +1,55 @@
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2006 NEC Corporation
+ *
+ * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include <linux/xattr.h>
+#include <linux/mtd/mtd.h>
+#include "nodelist.h"
+
+static int jffs2_user_getxattr(struct dentry *dentry, const char *name,
+ void *buffer, size_t size, int type)
+{
+ if (!strcmp(name, ""))
+ return -EINVAL;
+ return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
+ name, buffer, size);
+}
+
+static int jffs2_user_setxattr(struct dentry *dentry, const char *name,
+ const void *buffer, size_t size, int flags, int type)
+{
+ if (!strcmp(name, ""))
+ return -EINVAL;
+ return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_USER,
+ name, buffer, size, flags);
+}
+
+static size_t jffs2_user_listxattr(struct dentry *dentry, char *list,
+ size_t list_size, const char *name, size_t name_len, int type)
+{
+ size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1;
+
+ if (list && retlen <= list_size) {
+ strcpy(list, XATTR_USER_PREFIX);
+ strcpy(list + XATTR_USER_PREFIX_LEN, name);
+ }
+
+ return retlen;
+}
+
+const struct xattr_handler jffs2_user_xattr_handler = {
+ .prefix = XATTR_USER_PREFIX,
+ .list = jffs2_user_listxattr,
+ .set = jffs2_user_setxattr,
+ .get = jffs2_user_getxattr
+};