From: Petr Mladek <pmladek@suse.com>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Jan Kara <jack@suse.cz>, Tejun Heo <tj@kernel.org>,
Calvin Owens <calvinowens@fb.com>,
Thomas Gleixner <tglx@linutronix.de>,
Mel Gorman <mgorman@techsingularity.net>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Laura Abbott <labbott@redhat.com>,
Andy Lutomirski <luto@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Kees Cook <keescook@chromium.org>,
linux-kernel@vger.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: [RFC][PATCHv4 1/6] printk: use vprintk_func in vprintk()
Date: Thu, 24 Nov 2016 17:28:44 +0100 [thread overview]
Message-ID: <20161124162844.GE24103@pathway.suse.cz> (raw)
In-Reply-To: <20161027154933.1211-2-sergey.senozhatsky@gmail.com>
On Fri 2016-10-28 00:49:28, Sergey Senozhatsky wrote:
> vprintk(), just like printk(), better be using per-cpu printk_func
> instead of direct vprintk_emit() call. Just in case if vprintk()
> will ever be called from NMI, or from any other context that can
> deadlock in printk().
>
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Makes sense.
Reviewed-by: Petr Mladek <pmladek@suse.com>
Best Regards,
Petr
next prev parent reply other threads:[~2016-11-24 16:28 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-27 15:49 [RFC][PATCHv4 0/6] printk: use printk_safe to handle printk() recursive calls Sergey Senozhatsky
2016-10-27 15:49 ` [RFC][PATCHv4 1/6] printk: use vprintk_func in vprintk() Sergey Senozhatsky
2016-11-24 16:28 ` Petr Mladek [this message]
2016-10-27 15:49 ` [RFC][PATCHv4 2/6] printk: rename nmi.c and exported api Sergey Senozhatsky
2016-11-24 16:35 ` Petr Mladek
2016-12-01 1:07 ` Sergey Senozhatsky
2016-12-01 12:12 ` Petr Mladek
2016-10-27 15:49 ` [RFC][PATCHv4 3/6] printk: introduce per-cpu safe_print seq buffer Sergey Senozhatsky
2016-11-24 16:58 ` Petr Mladek
2016-12-01 1:08 ` Sergey Senozhatsky
2016-12-01 5:32 ` Sergey Senozhatsky
2016-10-27 15:49 ` [RFC][PATCHv4 4/6] printk: report lost messages in printk safe/nmi contexts Sergey Senozhatsky
2016-11-25 11:07 ` Petr Mladek
2016-12-01 2:10 ` Sergey Senozhatsky
2016-12-01 12:50 ` Petr Mladek
2016-10-27 15:49 ` [RFC][PATCHv4 5/6] printk: use printk_safe buffers Sergey Senozhatsky
2016-11-25 14:28 ` Petr Mladek
2016-12-01 2:14 ` Sergey Senozhatsky
2016-10-27 15:49 ` [RFC][PATCHv4 6/6] printk: remove zap_locks() function Sergey Senozhatsky
2016-11-25 15:01 ` Petr Mladek
2016-11-25 15:17 ` Peter Zijlstra
2016-12-01 2:34 ` Sergey Senozhatsky
2016-12-01 5:42 ` Peter Zijlstra
2016-12-01 13:36 ` Petr Mladek
2016-12-02 1:11 ` Sergey Senozhatsky
2016-12-01 2:18 ` Sergey Senozhatsky
2016-12-01 12:50 ` Sergey Senozhatsky
2016-12-01 13:15 ` Petr Mladek
2016-10-28 3:30 ` [RFC][PATCHv4 0/6] printk: use printk_safe to handle printk() recursive calls Linus Torvalds
2016-10-28 4:05 ` Sergey Senozhatsky
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