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-rw-r--r--include/linux/xattr.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index d20051865800..86b0d47984a1 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -19,6 +19,10 @@
#include <linux/user_namespace.h>
#include <uapi/linux/xattr.h>
+/* List of all open_how "versions". */
+#define XATTR_ARGS_SIZE_VER0 16 /* sizeof first published struct */
+#define XATTR_ARGS_SIZE_LATEST XATTR_ARGS_SIZE_VER0
+
struct inode;
struct dentry;