From 86b4f2865f2ebd7e6b3d85beb66a9390eb46eb96 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:01:45 +0100
Subject: [PATCH 074/116] virtiofsd: passthrough_ll: add renameat2 support
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RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-71-dgilbert@redhat.com>
Patchwork-id: 93531
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 070/112] virtiofsd: passthrough_ll: add renameat2 support
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>

From: Miklos Szeredi <mszeredi@redhat.com>

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit f0ab7d6f78a7d3c1c19fd81a91c9b1199f56c4f6)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 tools/virtiofsd/passthrough_ll.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
index 98114a3..18d69ab 100644
--- a/tools/virtiofsd/passthrough_ll.c
+++ b/tools/virtiofsd/passthrough_ll.c
@@ -1099,7 +1099,17 @@ static void lo_rename(fuse_req_t req, fuse_ino_t parent, const char *name,
     }
 
     if (flags) {
+#ifndef SYS_renameat2
         fuse_reply_err(req, EINVAL);
+#else
+        res = syscall(SYS_renameat2, lo_fd(req, parent), name,
+                       lo_fd(req, newparent), newname, flags);
+        if (res == -1 && errno == ENOSYS) {
+            fuse_reply_err(req, EINVAL);
+        } else {
+            fuse_reply_err(req, res == -1 ? errno : 0);
+        }
+#endif
         return;
     }
 
-- 
1.8.3.1