From: Steven Rostedt <rostedt@goodmis.org>
To: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>, Tejun Heo <tj@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] printk: wake up klogd in vprintk_emit
Date: Wed, 18 Apr 2018 11:10:38 -0400 [thread overview]
Message-ID: <20180418111038.209cc0cc@gandalf.local.home> (raw)
In-Reply-To: <20180418150214.z7oyughldrktj6e4@pathway.suse.cz>
On Wed, 18 Apr 2018 17:02:14 +0200
Petr Mladek <pmladek@suse.com> wrote:
> > Calling wake_up_klogd() will grab the rq lock and give us a A-B<->B-A
> > locking order.
>
> wake_up_klogd() uses the lockless irq_work_queue(). So it is actually
> safe.
I didn't look at the code. OK then we don't need to worry about that.
>
> But the name is confusing. We should rename it.
Yes, I would because the old wake_up_klogd() did do a wakeup. Perhaps
we should name it: kick_klogd().
-- Steve
next prev parent reply other threads:[~2018-04-18 15:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-14 3:01 [PATCH 2/2] printk: wake up klogd in vprintk_emit Sergey Senozhatsky
2018-04-18 14:04 ` Petr Mladek
2018-04-19 1:23 ` Sergey Senozhatsky
2018-04-19 9:54 ` Petr Mladek
2018-04-18 14:29 ` Steven Rostedt
2018-04-18 15:02 ` Petr Mladek
2018-04-18 15:10 ` Steven Rostedt [this message]
2018-04-19 1:17 ` Sergey Senozhatsky
2018-04-19 1:42 ` [PATCHv2] " Sergey Senozhatsky
2018-04-19 10:02 ` Petr Mladek
2018-04-20 1:52 ` Sergey Senozhatsky
2018-04-20 8:18 ` Petr Mladek
2018-04-25 13:23 ` Petr Mladek
2018-04-26 1:44 ` Sergey Senozhatsky
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