Kexec Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: John Ogness <john.ogness@linutronix.de>
Cc: Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 2/4] printk: store instead of processing cont parts
Date: Sun, 19 Jul 2020 23:35:27 +0900	[thread overview]
Message-ID: <20200719143527.GA566@jagdpanzerIV.localdomain> (raw)
In-Reply-To: <20200717234818.8622-3-john.ogness@linutronix.de>

On (20/07/18 01:54), John Ogness wrote:
> ---
>  kernel/printk/printk.c | 114 ++++-------------------------------------
>  1 file changed, 11 insertions(+), 103 deletions(-)
> 
> diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
> index fec71229169e..c4274c867771 100644
> --- a/kernel/printk/printk.c
> +++ b/kernel/printk/printk.c
> @@ -495,9 +495,14 @@ static void truncate_msg(u16 *text_len, u16 *trunc_msg_len)
>  		*trunc_msg_len = 0;
>  }
>  
> +static inline u32 printk_caller_id(void)
> +{
> +	return in_task() ? task_pid_nr(current) :
> +		0x80000000 + raw_smp_processor_id();
> +}

Can we merge lines that we don't want to merge?

   pr_cont()  ->  IRQ -> pr_cont() -> NMI -> pr_cont()

                  |__________________________________|
   different       same 0x80000000 + cpu_id caller id
   caller id

	-ss

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  reply	other threads:[~2020-07-19 14:35 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-17 23:48 [PATCH 0/4] printk: reimplement LOG_CONT handling John Ogness
2020-07-17 23:48 ` [PATCH 1/4] printk: ringbuffer: support dataless records John Ogness
2020-07-20 14:49   ` John Ogness
2020-07-17 23:48 ` [PATCH 2/4] printk: store instead of processing cont parts John Ogness
2020-07-19 14:35   ` Sergey Senozhatsky [this message]
2020-07-19 18:27     ` Linus Torvalds
2020-07-20  1:50       ` Sergey Senozhatsky
2020-07-20 18:30         ` Linus Torvalds
2020-07-21  3:53           ` Joe Perches
2020-07-21 14:42           ` Sergey Senozhatsky
2020-07-21 14:57             ` John Ogness
2020-07-29  2:03               ` Sergey Senozhatsky
2020-07-21 15:40             ` Linus Torvalds
2020-07-28  2:22               ` Sergey Senozhatsky
2020-07-17 23:48 ` [PATCH 3/4] printk: process cont records during reading John Ogness
2020-07-17 23:48 ` [PATCH 4/4] ipconfig: cleanup printk usage John Ogness
2020-07-18  0:00 ` [PATCH 0/4] printk: reimplement LOG_CONT handling Linus Torvalds
2020-07-18 14:42   ` John Ogness
2020-07-18 17:42     ` Linus Torvalds
2020-08-11 16:05     ` Petr Mladek
2020-08-12 16:39       ` POC: Alternative solution: " Petr Mladek
2020-08-13  0:24         ` John Ogness
2020-08-13  5:18           ` Sergey Senozhatsky
2020-08-13  7:44             ` John Ogness
2020-08-13  8:41               ` Petr Mladek
2020-08-13 10:29                 ` John Ogness
2020-08-13 11:30                   ` Petr Mladek
2020-08-14  3:34                   ` Sergey Senozhatsky
2020-08-14  8:16                     ` John Ogness
2020-08-14  9:12                       ` Petr Mladek
2020-08-13 11:54                 ` Sergey Senozhatsky
2020-08-14  9:04                   ` Petr Mladek
2020-08-14 22:46                   ` Linus Torvalds
2020-08-14 23:52                     ` Joe Perches
2020-08-15  2:33                       ` Linus Torvalds
2020-08-15  3:08                         ` Joe Perches
2020-08-15  9:25                       ` David Laight
2020-08-15  5:41                     ` Sergey Senozhatsky
2020-08-13  7:51             ` Petr Mladek
2020-08-13  7:31           ` Petr Mladek

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200719143527.GA566@jagdpanzerIV.localdomain \
    --to=sergey.senozhatsky@gmail.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=john.ogness@linutronix.de \
    --cc=kexec@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    --cc=pmladek@suse.com \
    --cc=rostedt@goodmis.org \
    --cc=sergey.senozhatsky.work@gmail.com \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox