[CRIU] [PATCH 15/16] mount: print error message if readlinkat failed

[Andrey Vagin]

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

diff --git a/mount.c b/mount.c
index a6819f3..bcc89cd 100644
--- a/mount.c
+++ b/mount.c
@@ -1802,6 +1802,7 @@ int mntns_collect_root(pid_t pid)
 	pfd = open_pid_proc(pid);
 	ret = readlinkat(pfd, "root", path, sizeof(path) - 1);
 	if (ret < 0) {
+		pr_perror("Unable to read /proc/%d/root", pid);
 		close_pid_proc();
 		return ret;
 	}
-- 
1.8.5.3