linux-kernel - Re: tty, vt: lockdep warnings (Patch v3)

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Message-ID: <CA+1xoqeZ7ByntzpaWKkphJNOJqMzBLvufSvKwe7mS-2sMyVSBg@mail.gmail.com>
Date:	Tue, 13 Nov 2012 11:24:29 -0500
From:	Sasha Levin <levinsasha928@...il.com>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	Hugh Dickins <hughd@...gle.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Bjørn Mork <bjorn@...k.no>,
	Dave Jones <davej@...hat.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>, linux-kernel@...r.kernel.org,
	linux-fbdev@...r.kernel.org, florianSchandinat@....de
Subject: Re: tty, vt: lockdep warnings (Patch v3)

On Fri, Nov 9, 2012 at 2:42 PM, Sasha Levin <sasha.levin@...cle.com> wrote:
> On 11/09/2012 02:34 PM, Hugh Dickins wrote:
>> On Thu, 8 Nov 2012, Alan Cox wrote:
>>> commit f35b3fbf24c4e4debb6a7a864b09854ccc2a22e7
>>> Author: Alan Cox <alan@...ux.intel.com>
>>> Date:   Wed Nov 7 16:35:08 2012 +0000
>>>
>>>     fb: Rework locking to fix lock ordering on takeover
>>>
>>>     Adjust the console layer to allow a take over call where the caller already
>>>     holds the locks. Make the fb layer lock in order.
>>>
>>>     This s partly a band aid, the fb layer is terminally confused about the
>>>     locking rules it uses for its notifiers it seems.
>>>
>>>     Signed-off-by: Alan Cox <alan@...ux.intel.com>
>>
>> This version works for me too - thanks.
>> Hugh
>
> I was planning to test it last night, but new code in mm/ failed horribly and
> was BUG()ing all over the place, so I didn't get any significant testing
> of this patch done.
>
> Will update...

Nothing complains anywhere, looks great.


Thanks,
Sasha
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