Re: [RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock

[Sebastian Andrzej Siewior]

On 07/14/2016 06:09 PM, Steven Rostedt wrote:
> On Thu, 14 Jul 2016 18:05:04 +0200
> Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote:
> 
>> There should be no need to hold the base lock during the wakeup. There
>> should be no boosting involved, the wakeup list has its own lock so it
>> should be safe to do this without the lock.
>>
>> Cc: stable-rt@xxxxxxxxxxxxxxx
> 
> Nothing against this patch, but as you marked it for stable, can you
> add to the change log what issue you had that caused you to make this
> change?

#1 was noticed while looking at the code, it *might* happen.
#2 Is not strictly required for back porting.
I just don't see a reason for holding the lock, that is all.

> -- Steve

Sebastian