[libvirt] [PATCH] Ignore failure to mount SELinux filesystem in container

[Daniel P. Berrange]

From: "Daniel P. Berrange" <berrange at redhat.com>

User namespaces will deny the ability to mount the SELinux
filesystem. This is harmless for libvirt's LXC needs, so the
error can be ignored.

Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
 src/lxc/lxc_container.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index d9734b5..b37300b 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -741,6 +741,12 @@ static int lxcContainerMountBasicFS(void)
         VIR_DEBUG("Mount %s on %s type=%s flags=%x, opts=%s",
                   srcpath, mnts[i].dst, mnts[i].type, mnts[i].mflags, mnts[i].opts);
         if (mount(srcpath, mnts[i].dst, mnts[i].type, mnts[i].mflags, mnts[i].opts) < 0) {
+#if WITH_SELINUX
+            if (STREQ(mnts[i].src, SELINUX_MOUNT) &&
+                (errno == EINVAL || errno == EPERM))
+                continue;
+#endif
+
             virReportSystemError(errno,
                                  _("Failed to mount %s on %s type %s flags=%x opts=%s"),
                                  srcpath, mnts[i].dst, NULLSTR(mnts[i].type),
-- 
1.8.1.4