module_param_call(check_copy_up, ovl_ccup_set, ovl_ccup_get, NULL, 0644);
MODULE_PARM_DESC(check_copy_up, "Obsolete; does nothing");
+static bool ovl_must_copy_xattr(const char *name)
+{
+ return !strcmp(name, XATTR_POSIX_ACL_ACCESS) ||
+ !strcmp(name, XATTR_POSIX_ACL_DEFAULT) ||
+ !strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN);
+}
+
int ovl_copy_xattr(struct dentry *old, struct dentry *new)
{
ssize_t list_size, size, value_size = 0;
continue; /* Discard */
}
error = vfs_setxattr(new, name, value, size, 0);
- if (error)
- break;
+ if (error) {
+ if (error != -EOPNOTSUPP || ovl_must_copy_xattr(name))
+ break;
+
+ /* Ignore failure to copy unknown xattrs */
+ error = 0;
+ }
}
kfree(value);
out: