[Xen-devel] [PATCH] tools/hotplug/Linux/block: fix shared loop device detection

[Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>]

# HG changeset patch
# User Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>
# Date 1309991886 14400
# Node ID 52449dfa903562aa563fef0d229e2dc61a768f4c
# Parent  2f63562df1c4230492a81793dce3672f93c93d9a
tools/hotplug/Linux/block: fix shared loop device detection

We need to prefix 0 or more '0' to '$dev':

  # stat -c '%D' "/system.img"
  13
  # losetup -a
  /dev/loop0: [0013]:12062248 (/system.img)

Signed-off-by: Zhigang Wang <zhigang.x.wang@xxxxxxxxxx>

diff -r 2f63562df1c4 -r 52449dfa9035 tools/hotplug/Linux/block
--- a/tools/hotplug/Linux/block Mon Jun 27 17:37:12 2011 +0100
+++ b/tools/hotplug/Linux/block Wed Jul 06 18:38:06 2011 -0400
@@ -280,7 +280,7 @@ mount it read-write in a guest domain."
           fi
 
           shared_list=$(losetup -a |
-                sed -n -e 
"s@^\([^:]\+\)\(:[[:blank:]]\[${dev}\]:${inode}[[:blank:]](.*)\)@\1@p" )
+                sed -n -e 
"s@^\([^:]\+\)\(:[[:blank:]]\[0*${dev}\]:${inode}[[:blank:]](.*)\)@\1@p" )
           for dev in $shared_list
           do
             if [ -n "$dev" ]

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