start: close data socket in parent

Brings the number of open fds in the monitor process for a standard container
without ttys down to 17.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/start.c b/src/lxc/start.c
index 664dbc3baa73e7157ef763575553bda75273b695..81cee074f791b1bfbe24c4c941e1e91e516e201f 100644 (file)
--- a/src/lxc/start.c
+++ b/src/lxc/start.c
@@ -1149,6 +1149,11 @@ int __lxc_start(const char *name, struct lxc_conf *conf,
                ERROR("failed to spawn '%s'", name);
                goto out_fini_nonet;
        }
+       /* close parent side of data socket */
+       close(handler->data_sock[0]);
+       handler->data_sock[0] = -1;
+       close(handler->data_sock[1]);
+       handler->data_sock[1] = -1;
 
        handler->conf->reboot = 0;