Re: [PATCH v2 0/2] printk: Reduce unnecessary wait times by pr_flush()

[Petr Mladek]

On Fri 2023-10-06 10:21:49, Petr Mladek wrote:
> This is an updated version of the patch
> https://lore.kernel.org/r/20230929113233.863824-1-john.ogness@xxxxxxxxxxxxx
> 
> Changes since v1:
> 
>   + Split reduction of the pooling time into separate patch.
>   + Use jiffies to count the real sleeping time.
> 
> Note that my original POC counted jiffies spent in the entire cycle.
> It would count also the time spent by console_lock() and by flushing
> the legacy consoles in console_unlock().
> 
> The current version counts only the time spent by msleep(1) aka
> the pooling interval.
> 
> 
> John Ogness (1):
>   printk: flush consoles before checking progress
> 
> Petr Mladek (1):
>   printk: Reduce pr_flush() pooling time

JFYI, the patchset has been committed into printk/linux.git,
branch rework/misc-cleanups.

I am going to push it in the next merge window for 6.7.
IMHO, the issue is not critical and we are already at 6.6-rc5.

Best Regards,
Petr