linux-kernel - [PATCH 0/2] printk: Add loud_console printk flag to not suppress sysrq header msgs

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Message-Id: <20241016-printk-loud-con-v1-0-065e4dad6632@suse.com>
Date: Wed, 16 Oct 2024 14:03:00 -0300
From: Marcos Paulo de Souza <mpdesouza@...e.com>
To: Petr Mladek <pmladek@...e.com>, Steven Rostedt <rostedt@...dmis.org>, 
 John Ogness <john.ogness@...utronix.de>, 
 Sergey Senozhatsky <senozhatsky@...omium.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, 
 Marcos Paulo de Souza <mpdesouza@...e.com>
Subject: [PATCH 0/2] printk: Add loud_console printk flag to not suppress
 sysrq header msgs

Hello,

These two patches will change printk_context to store a new context,
called loud console. By using this context it would be possible to have
printk messages that are never suppressed by loglevel filtering.

This is useful on __handle_sysrq that currently uses a workaround to
make sure that sysrq header message are not suppressed.

Please review!

Signed-off-by: Marcos Paulo de Souza <mpdesouza@...e.com>
---
Marcos Paulo de Souza (2):
      printk: Introduce LOUD_CON flag
      tty: sysrq: Use printk_loud_console context on __handle_sysrq

 drivers/tty/sysrq.c         | 18 ++++++++----------
 include/linux/printk.h      |  3 +++
 kernel/printk/internal.h    |  3 +++
 kernel/printk/printk.c      |  8 +++++++-
 kernel/printk/printk_safe.c | 27 +++++++++++++++++++++++++--
 5 files changed, 46 insertions(+), 13 deletions(-)
---
base-commit: 1d227fcc72223cbdd34d0ce13541cbaab5e0d72f
change-id: 20241016-printk-loud-con-03b393d5f6fb

Best regards,
-- 
Marcos Paulo de Souza <mpdesouza@...e.com>