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Date:   Mon, 4 Apr 2016 13:52:00 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To:     Petr Mladek <pmladek@suse.com>
Cc:     kbuild test robot <lkp@intel.com>, kbuild-all@01.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Russell King <rmk+kernel@arm.linux.org.uk>,
        Daniel Thompson <daniel.thompson@linaro.org>,
        Jiri Kosina <jkosina@suse.com>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        linux-kernel@vger.kernel.org, x86@kernel.org,
        linux-arm-kernel@lists.infradead.org,
        adi-buildroot-devel@lists.sourceforge.net,
        linux-cris-kernel@axis.com, linux-mips@linux-mips.org,
        linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
        linux-sh@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: [PATCH v4 5/5] printk/nmi: flush NMI messages on the system panic
Message-ID: <20160404045200.GE6164@swordfish>
References: <1459353210-20260-6-git-send-email-pmladek@suse.com>
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Hello,

On (03/31/16 14:36), Petr Mladek wrote:
[..]
>  #ifdef CONFIG_PRINTK_NMI
> +#define deferred_console_in_nmi() in_nmi()
>  #else
> +#define deferred_console_in_nmi() 0
[..]
> +	if (!in_sched && !deferred_console_in_nmi()) {
>  		lockdep_off();
>  		/*
>  		 * Try to acquire and then immediately release the console

or use SCHED level for nmi messages instead of defining deferred_console_in_nmi()?
so !in_sched will work for both SCHED and NMI messages.

	-ss