Subject: Re: bug#56682: feature/improved-locked-narrowing 9dee6df39c: Reworked locked narrowing.

From: Dmitry Gutov <[email-masked]>
Date: Tue, 31 Jan 2023 18:03:28 +0200

On 31/01/2023 17:17, Gregory Heytings wrote:
> 
>>
>> note that a significant part of the redisplay slowdowns wasn't caused 
>> by font-lock, and thus the removal of locking will not regress those 
>> performance improvements.
>>
> 
> That is correct.
> 
>>
>> And for those (potential?) cases where font-lock is a real problem for 
>> performance, we could stop it from widening using an existing knob.
>>
> 
> That is not correct.  There is no knob that can prevent a mode from 
> widening.

Just the existing convention which implores modes not to do that.

CC Mode will continue to do what it does, I guess.