From a63b7bbc2175901d79fa36ba734499655c077f0d Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 5 May 2015 12:12:19 -0500
Subject: [PATCH] GFS2: add support for rename2 and RENAME_EXCHANGE

gfs2 now uses the rename2 directory iop, and supports the
RENAME_EXCHANGE flag (as well as RENAME_NOREPLACE, which the vfs
takes care of).

Signed-off-by: Benjamin Marzinski <bmarzins redhat com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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