[libvirt] [PATCH v2 1/8] storage_backend_rbd: Drop ATTRIBUTE_UNUSED for arguments that are used

[John Ferlan]

On 08/28/2018 09:58 AM, Michal Privoznik wrote:
> On 08/28/2018 03:30 PM, John Ferlan wrote:
>>
>>
>> On 08/20/2018 08:09 AM, Michal Privoznik wrote:
>>> In two places the passed pool object argument is marked as
>>> ATTRIBUTE_UNUSED even though it's used right away.
>>>
>>> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
>>> ---
>>>  src/storage/storage_backend_rbd.c | 4 ++--
>>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>
>> Reviewed-by: John Ferlan <jferlan at redhat.com>
>>
>> Although freeze hasn't been announced, an rc1 tag exists - so I'll state
>> that although the first 2 patches could be designated safe for freeze,
>> the rest of the series needs to wait until after 4.7.0.
> 
> Well, the whole patch set can be viewed as a bug fix and as such is
> exempt from freeze ;-)
> 

Careful there you don't want to set a dangerous precedent, that I could
use ;-)... Still, I see no bz associated with any patch in the series.
Also there are three distinct things happening in this series.

1. Moving the Is/Find duplicate code into AssignDef for TOCTOU. That's a
lot of moving parts and some amount of logic adjustment that should get
more exposure than a few RC days.

2. The usage of in_use during download, upload, and wipe

3. Release of pool lock while in_use is set for more concurrency

I think 2 is a "easy" bug, 1 is a "hard" bug, and 3 is less a bug and
more a concurrency enhancement.

When it comes to late in the game, trivial things (like patch 1), easy
bugs, patches associated w/ customer bzs, and crash/core type bugs
could/should be fixed. But harder to reproduce and/or present in more
than the current (months) release can/should wait.

Of course JMO...

John