[CRIU] [PATCH 1/3] mount: build tree of mounts before dumping them

[Andrey Vagin]

When CRIU wants to dump content, it checks that nothing is overmounted.
The list of children for such mounts must be empty, but these lists are
filled during constructing a tree of mounts.

Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 mount.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mount.c b/mount.c
index fbc9f7d..68965bb 100644
--- a/mount.c
+++ b/mount.c
@@ -469,6 +469,9 @@ int dump_mnt_ns(int ns_pid, struct cr_fdset *fdset)
 		return -1;
 	}
 
+	if (mnt_build_tree(pm) == NULL)
+		return -1;
+
 	if (validate_shared(mntinfo)) {
 		pr_err("Can't proceed %d's mountinfo\n", ns_pid);
 		return -1;
-- 
1.8.3.1