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diff --git a/src/ceph/src/common/xattr.h b/src/ceph/src/common/xattr.h
new file mode 100644
index 0000000..15b3561
--- /dev/null
+++ b/src/ceph/src/common/xattr.h
@@ -0,0 +1,44 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 Stanislav Sedov <stas@FreeBSD.org>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ */
+
+#ifndef CEPH_EXTATTR_H
+#define CEPH_EXTATTR_H
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Almost everyone defines ENOATTR, except for Linux,
+// which does #define ENOATTR ENODATA.  It seems that occasionally that
+// isn't defined, though, so let's make sure.
+#ifndef ENOATTR
+# define ENOATTR ENODATA
+#endif
+
+int ceph_os_setxattr(const char *path, const char *name,
+                  const void *value, size_t size);
+int ceph_os_fsetxattr(int fd, const char *name, const void *value,
+                   size_t size);
+ssize_t ceph_os_getxattr(const char *path, const char *name,
+                         void *value, size_t size);
+ssize_t ceph_os_fgetxattr(int fd, const char *name, void *value,
+                          size_t size);
+ssize_t ceph_os_listxattr(const char *path, char *list, size_t size);
+ssize_t ceph_os_flistxattr(int fd, char *list, size_t size);
+int ceph_os_removexattr(const char *path, const char *name);
+int ceph_os_fremovexattr(int fd, const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !CEPH_EXTATTR_H */