[libvirt] [PATCH v2 0/3] Be more selective when determining cdrom for taint messaging

Michal Privoznik mprivozn at redhat.com
Mon Sep 18 13:12:44 UTC 2017


On 09/11/2017 04:32 PM, John Ferlan wrote:
> v1: https://www.redhat.com/archives/libvir-list/2017-September/msg00103.html
> 
> Changes since v1:
> 
>  Split into 3 parts... The first patch would be the bare minimum using
>  STRPREFIX instead of STREQ type comparisons for the incoming path to
>  be "/dev/cdrom[N]" or "/dev/srN" (or resolved to that).
> 
>  This would "work" for the most part, but then since it's possible to 
>  make even more checks let's check against the collected node device
>  data. Patch 2 therefore will "tag" the already collected cdrom data
>  with a capability. This allows patch3 to find any/all CDROM's on the
>  host and compare the resolved path to that list of devices returning
>  "true" if something matches a node device declared physical CDROM.
> 
> I split things up mainly to make it easier to decide whether patch 1
> is sufficient or not. If patch2 and patch3 are OK, I would also add
> a release note indicating the improvement to find CDROM by node device
> capability.  It's a separate "improvement" on it's own as well. Whether
> it's truly useful or not, is a different question...

[1]

> 
> John Ferlan (3):
>   qemu: Be more selective when determining cdrom for taint messaging

ACK to this one ^^

>   nodedev: Add capability bit to detect 'cdrom' devices
>   qemu: Add inquiry to nodedev for cdrom taint checking

However, these two ^^ look like an overkill to me. It's still just a
taint message that nobody cares about. Or?
1: Yeah, I don't think we really need such a big hammer for tiny nail.
But I might be missing something.

Michal




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