Bug#830882: multipath-tools: fix dm- device filtering

[Dragan Stancevic]

Package: multipath-tools
Version: 0.5.0+git1.656f8865-5
Severity: normal
Tags: patch
User: ubuntu-devel at lists.ubuntu.com
Usertags: origin-ubuntu yakkety ubuntu-patch

Dear Maintainer,

During "service multipath-tools start" /sbin/multipath is
called on dm- devices that are filtered but due to a condition
conf->dev_type == DEV_DEVNODE in filtering code multipath
binary wasn't dropping out when hitting a dm- device. This
was due to the fact that in this case conf->dev_type is
set to DEV_UEVENT.

This is causing the logs to be filled with following
messages:

multipath: dm-6: failed to get udev uid: Invalid argument
multipath: dm-6: failed to get sysfs uid: Invalid argument
multipath: dm-6: failed to get sgio uid: No such file or directory


In Ubuntu, the attached patch was applied to achieve the following:

This change alows the filtering to happen.


  * multipath-tools: fix dm- device filtering
   - Allow filtering of DEV_UEVENT dev_type
   - Resolves LP: #1570093


Thanks for considering the patch.


-- System Information:
Debian Release: stretch/sid
  APT prefers xenial-updates
  APT policy: (500, 'xenial-updates'), (500, 'xenial-security'), (500, 'xenial'), (100, 'xenial-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.4.0-28-generic (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
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