[PATCH v2 1/3] ovl: disable uuid when redirect_dir is used

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From: Vyacheslav Yurkov <Vyacheslav.Yurkov@xxxxxxxxxx>

Currently decoding origin with lower null uuid is not allowed when user
opted-in to one of the new features that require following the lower inode
of non-dir upper (index, xino, metacopy). Now we add redirect_dir too to
that feature list.

Signed-off-by: Vyacheslav Yurkov <Vyacheslav.Yurkov@xxxxxxxxxx>
---
 fs/overlayfs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index b01d4147520d..97ea35fdd933 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1600,7 +1600,7 @@ static bool ovl_lower_uuid_ok(struct ovl_fs *ofs, const uuid_t *uuid)
 	 * lower inode of non-dir upper.
 	 */
 	if (!ofs->config.index && !ofs->config.metacopy &&
-	    ofs->config.xino != OVL_XINO_ON &&
+	    !ofs->config.redirect_dir && ofs->config.xino != OVL_XINO_ON &&
 	    uuid_is_null(uuid))
 		return false;
 
-- 
2.25.1




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