[PATCH] tools/hotplug: Use env rather than sh in xenstored.service

[George Dunlap <george.dunlap@eu.citrix.com>]

Using sh to exec xenstored breaks on selinux systems (at least, on
CentOS 7).  The only purpose of doing that was to be able to expand
the $XENSTORED variable; this can be done with /usr/bin/env instead,
which still works on systemd systems (at least on CentOS 7).

Suggested-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: George Dunlap <george.dunlap@citrix.com>
---

One could argue that this is a bug in 4.6 and should be accepted.  I
could also see an argument, however, that this late in the cycle we
should just wait until 4.6.1.  I'll leave it up to Wei to decide.

CC: Ian Campbell <ian.campbell@citrix.com>
CC: Ian Jackson <ian.jackson@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
CC: Olaf Hering <olaf@aepfle.de>
---
 tools/hotplug/Linux/systemd/xenstored.service.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/hotplug/Linux/systemd/xenstored.service.in b/tools/hotplug/Linux/systemd/xenstored.service.in
index a5f836b..09964f3 100644
--- a/tools/hotplug/Linux/systemd/xenstored.service.in
+++ b/tools/hotplug/Linux/systemd/xenstored.service.in
@@ -15,7 +15,7 @@ EnvironmentFile=-@CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons
 ExecStartPre=/bin/grep -q control_d /proc/xen/capabilities
 ExecStartPre=-/bin/rm -f @XEN_LIB_STORED@/tdb*
 ExecStartPre=/bin/mkdir -p @XEN_RUN_DIR@
-ExecStart=/bin/sh -c "exec $XENSTORED --no-fork $XENSTORED_ARGS"
+ExecStart=/usr/bin/env $XENSTORED --no-fork $XENSTORED_ARGS
 
 [Install]
 WantedBy=multi-user.target
-- 
1.9.1