[PATCH] Use a safer method to get a dm partition's disk name.
David Lehman
dlehman at redhat.com
Tue Feb 17 14:59:20 UTC 2015
Resolves: rhbz#1190886
Related: rhbz#1181336
---
blivet/udev.py | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/blivet/udev.py b/blivet/udev.py
index 7ae42b1..aefa631 100644
--- a/blivet/udev.py
+++ b/blivet/udev.py
@@ -580,7 +580,19 @@ def device_is_biosraid_member(info):
return False
def device_get_dm_partition_disk(info):
- return os.path.basename(os.path.dirname(device_get_sysfs_path(info)))
+ if not device_is_dm_partition(info):
+ return None
+
+ disk = None
+ majorminor = info["ID_PART_ENTRY_DISK"]
+ if majorminor:
+ major, minor = majorminor.split(":")
+ for device in get_devices():
+ if device.get("MAJOR") == major and device.get("MINOR") == minor:
+ disk = device_get_name(device)
+ break
+
+ return disk
def device_is_dm_partition(info):
return (device_is_dm(info) and
--
1.9.3
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