xattr handlers: Simplify list operation
[linux-2.6-block.git] / fs / ext4 / xattr_trusted.c
index 121fdf9fdc02687b3bbaeb230d6ee25b0cc86239..2a3c6f9b8cb8452115aaaa4fadb786d3a2ca2612 100644 (file)
 #include "ext4.h"
 #include "xattr.h"
 
-static size_t
-ext4_xattr_trusted_list(const struct xattr_handler *handler,
-                       struct dentry *dentry, char *list, size_t list_size,
-                       const char *name, size_t name_len)
+static bool
+ext4_xattr_trusted_list(struct dentry *dentry)
 {
-       const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-       const size_t total_len = prefix_len + name_len + 1;
-
-       if (!capable(CAP_SYS_ADMIN))
-               return 0;
-
-       if (list && total_len <= list_size) {
-               memcpy(list, XATTR_TRUSTED_PREFIX, prefix_len);
-               memcpy(list+prefix_len, name, name_len);
-               list[prefix_len + name_len] = '\0';
-       }
-       return total_len;
+       return capable(CAP_SYS_ADMIN);
 }
 
 static int