[Xen-changelog] [xen-4.0-testing] stubdom: Fix stubdom-dm using "grep" improperly

["Xen patchbot-4.0-testing" <patchbot-4.0-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User John Weekes <lists.xen@xxxxxxxxxxxxxxxxxx>
# Date 1294992288 0
# Node ID ea4acac90cfeb730e54fbcf5af06fe63fbfa3df6
# Parent  7a203c60d588a7a15a28a6fb16c69feafd157e0d
stubdom: Fix stubdom-dm using "grep" improperly

stubdom-dm uses "grep" on "xm list" output to determine whether it is
already running. The existing behavior is to use "grep $domname-dm"
but this will result in a false-positive in the case of another domU
running whose name ends with the full new name; for instance, if
"abctest-dm" is running, a new "test-dm" will spin forever, waiting
for it the end.

Any easy fix is to have it use "grep -w" instead of "grep", searching
for the whole word only.

It also might be worth considering a switch to "xl list" from "xm
list", here and in other places.

Signed-off-by: John Weekes <lists.xen@xxxxxxxxxxxxxxxxxx>
Committed-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
xen-unstable changeset:   22714:6852e3e7ef58
xen-unstable date:        Tue Jan 11 16:42:41 2011 +0000
---
 stubdom/stubdom-dm |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r 7a203c60d588 -r ea4acac90cfe stubdom/stubdom-dm
--- a/stubdom/stubdom-dm        Tue Jan 11 10:41:01 2011 +0000
+++ b/stubdom/stubdom-dm        Fri Jan 14 08:04:48 2011 +0000
@@ -91,7 +91,7 @@ trap term SIGHUP
 ############
 # stubdomain
 # Wait for any previous stubdom to terminate
-while xm list | grep $domname-dm
+while xm list | grep -w $domname-dm
 do
        sleep 1
 done

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