From 717373379510cd6ecf8c6d0e1aae65edfac4551d Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Tue, 5 May 2020 16:35:58 +0100
Subject: [PATCH 7/9] virtiofsd: Show submounts

RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200505163600.22956-6-dgilbert@redhat.com>
Patchwork-id: 96273
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 5/7] virtiofsd: Show submounts
Bugzilla: 1817445
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>

From: Max Reitz <mreitz@redhat.com>

Currently, setup_mounts() bind-mounts the shared directory without
MS_REC.  This makes all submounts disappear.

Pass MS_REC so that the guest can see submounts again.

Fixes: 5baa3b8e95064c2434bd9e2f312edd5e9ae275dc
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424133516.73077-1-mreitz@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Changed Fixes to point to the commit with the problem rather than
          the commit that turned it on
(cherry picked from commit ace0829c0d08f0e5f1451e402e94495bc2166772)

Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 tools/virtiofsd/passthrough_ll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c
index 73d8405..614ba55 100644
--- a/tools/virtiofsd/passthrough_ll.c
+++ b/tools/virtiofsd/passthrough_ll.c
@@ -2670,7 +2670,7 @@ static void setup_mounts(const char *source)
     int oldroot;
     int newroot;
 
-    if (mount(source, source, NULL, MS_BIND, NULL) < 0) {
+    if (mount(source, source, NULL, MS_BIND | MS_REC, NULL) < 0) {
         fuse_log(FUSE_LOG_ERR, "mount(%s, %s, MS_BIND): %m\n", source, source);
         exit(1);
     }
-- 
1.8.3.1