From: Jim Fehlig <jfehlig@novell.com>
Date: Thu, 10 Mar 2011 18:17:16 +0000 (+0000)
Subject: libxl: Call setsid(2) before exec'ing device model
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=bea472a7e1b35effb24fae81fc556fbacd238e05;p=xen.git

libxl: Call setsid(2) before exec'ing device model

While doing development on libvirt libxenlight driver I noticed
that terminating a libxenlight client causes any qemu-dm
processes that were indirectly created by the client to also
terminate.  Calling setsid(2) before exec'ing qemu-dm resolves
the issue.

Signed-off-by: Jim Fehlig <jfehlig@novell.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
---

diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index bc0bae7a96..d535e11a76 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -694,6 +694,7 @@ retry_transaction:
     if (rc < 0)
         goto out_close;
     if (!rc) { /* inner child */
+        setsid();
         libxl__exec(null, logfile_w, logfile_w,
                    libxl__abs_path(&gc, info->device_model, libxl_libexec_path()),
                    args);