[Xen-changelog] [xen-unstable] xend: fix "xm block-detach 0 ..." for extended-ID devices

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxxxx>
# Date 1292004499 0
# Node ID 56359dc2b207c3b80bc47851838dcde6d79d2b22
# Parent  3b3fce9050b9b14f3a11123f6943998413ea7e7e
xend: fix "xm block-detach 0 ..." for  extended-ID devices

Simply taking stat()'s st_rdev doesn't work here, as the minor is
split into two parts, the major is present, and the "extended" bit
isn't set.

Rather than fixing this in a way that would likely be OS-dependent,
simply remove the access to the device file, and instead just parse
the provided string (as is done e.g. for block-attach).

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Signed-off-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 tools/python/xen/util/blkif.py |    5 -----
 1 files changed, 5 deletions(-)

diff -r 3b3fce9050b9 -r 56359dc2b207 tools/python/xen/util/blkif.py
--- a/tools/python/xen/util/blkif.py    Fri Dec 10 16:49:05 2010 +0000
+++ b/tools/python/xen/util/blkif.py    Fri Dec 10 18:08:19 2010 +0000
@@ -18,11 +18,6 @@ def blkdev_name_to_number(name):
 
     devname = 'virtual-device'
     devnum = None
-
-    try:
-        return (devname, os.stat(n).st_rdev)
-    except Exception, ex:
-        pass
 
     scsi_major = [ 8, 65, 66, 67, 68, 69, 70, 71, 128, 129, 130, 131, 132, 
133, 134, 135 ]
     if re.match( '/dev/sd[a-z]([1-9]|1[0-5])?$', n):

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