Re: [PATCH v2 0/2] printk: Add force_con printk flag to not suppress sysrq header msgs

From: Petr Mladek
Date: Thu Nov 07 2024 - 10:58:44 EST


On Tue 2024-11-05 16:45:07, Marcos Paulo de Souza wrote:
> Hello,
>
> This is the second version of the patchset. It now addresses comments
> from John and Petr, while also mentioning that the current work solves
> one issue on handle_sysrq when the printk messages are deferred.
>
> The original cover-letter in is the v1.
>
> Please review!
>
> Signed-off-by: Marcos Paulo de Souza <mpdesouza@xxxxxxxx>
> ---
> Changes in v2:
> - Mentioned that it fixes a bug related to loglevel= dance (suggested by John)
> - Changed to loud_con to FORCE_CON (John, Petr)
> - Don't skip printk delay if FORCE_CON is specified (John)
> - Set FORCE_CON when LOG_CONT is handled (John)
> - Changed force_con from a per-CPU variable to a global variable because
> we can't disable migration on the callsites. (John, Petr)
> - Used is_printk_force_console() on boot_delay_msec(), since it's used
> when the message is stored, instead of setting is as an argument.
> - Link to v1: https://lore.kernel.org/r/20241016-printk-loud-con-v1-0-065e4dad6632@xxxxxxxx
> ---
> Marcos Paulo de Souza (2):
> printk: Introduce FORCE_CON flag
> tty: sysrq: Use printk_force_console context on __handle_sysrq

The patchset looks ready for linux-next from my POV. I am going to
push it there tomorrow or on Monday unless anyone complains.

There was some bike-shedding about the code style in the reviews.
But the proposals did not look like a big win. I think that it
is not worth a respin.

Best Regards,
Petr