Re: [rhel6-branch] mpath: add MultipathDevices first, before their partitions.

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Ack.

On Wed, 2010-08-04 at 20:45 +0200, Ales Kozumplik wrote:
> Otherwise the partitions will be ignored because their disks (the mpath
> devices) don't have disklabels yet.
> 
> Also in udev_device_get_uuid() compare just the plain strings, not the
> punctuation. This resulted in some of the devices with remmants of MD raid
> on them not being added to the device tree (due to the same value of
> ID_FS_UUID).
> 
> Resolves: rhbz#615987
> Related: rhbz#595866
> ---
>  storage/devicetree.py |    1 +
>  storage/udev.py       |    8 +++++---
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/storage/devicetree.py b/storage/devicetree.py
> index b497ecb..bbe8e51 100644
> --- a/storage/devicetree.py
> +++ b/storage/devicetree.py
> @@ -2037,6 +2037,7 @@ class DeviceTree(object):
>                  whitelist.append(p.name)
>              self.__multipathConfigWriter.addMultipathDevice(mp)
>              self._addDevice(mp)
> +            self.addUdevDevice(mp_info)
>          for d in self.devices:
>              if not d.name in whitelist:
>                  self.__multipathConfigWriter.addBlacklistDevice(d)
> diff --git a/storage/udev.py b/storage/udev.py
> index faa2b21..12116f6 100644
> --- a/storage/udev.py
> +++ b/storage/udev.py
> @@ -21,6 +21,7 @@
>  #
>  
>  import os
> +import re
>  
>  import iutil
>  from errors import *
> @@ -150,10 +151,11 @@ def udev_device_get_format(udev_info):
>  
>  def udev_device_get_uuid(udev_info):
>      """ Get the UUID from the device's format as reported by udev. """
> -    md_uuid = udev_info.get("MD_UUID")
> -    uuid = udev_info.get("ID_FS_UUID")
> +    md_uuid = udev_info.get("MD_UUID", '')
> +    uuid = udev_info.get("ID_FS_UUID", '')
>      # we don't want to return the array's uuid as a member's uuid
> -    if uuid and not md_uuid == uuid:
> +    if len(uuid) > 0 and \
> +            re.sub(r'\W', '', md_uuid) != re.sub(r'\W', '', uuid):
>          return udev_info.get("ID_FS_UUID")
>  
>  def udev_device_get_label(udev_info):


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