From da1ce0670c14d8380e423a3239e562a1dc15fa9e Mon Sep 17 00:00:00 2001
From: Miklos Szeredi
Date: Tue, 1 Apr 2014 17:08:43 +0200
Subject: vfs: add cross-rename

If flags contain RENAME_EXCHANGE then exchange source and destination files.
There's no restriction on the type of the files; e.g. a directory can be
exchanged with a symlink.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
---
 include/uapi/linux/fs.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/uapi/linux/fs.h')

diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 9250f4dd7d96..ca1a11bb4443 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -36,6 +36,7 @@
 #define SEEK_MAX	SEEK_HOLE
 
 #define RENAME_NOREPLACE	(1 << 0)	/* Don't overwrite target */
+#define RENAME_EXCHANGE		(1 << 1)	/* Exchange source and dest */
 
 struct fstrim_range {
 	__u64 start;
-- 
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