Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32;
From:   Petr Mladek <pmladek@suse.com>
To:     John Ogness <john.ogness@linutronix.de>,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        Steven Rostedt <rostedt@goodmis.org>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Todd Brandt <todd.e.brandt@intel.com>,
        linux-kernel@vger.kernel.org, Petr Mladek <pmladek@suse.com>
Subject: [PATCH v2 0/2] printk: Reduce unnecessary wait times by pr_flush()
Date:   Fri,  6 Oct 2023 10:21:49 +0200
Message-Id: <20231006082151.6969-1-pmladek@suse.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This is an updated version of the patch
https://lore.kernel.org/r/20230929113233.863824-1-john.ogness@linutronix.de

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

 kernel/printk/printk.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

-- 
2.35.3