From: Borislav Petkov <bp@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Jiri Kosina <jkosina@suse.cz>, Shawn Guo <shawn.guo@linaro.org>,
Sasha Levin <levinsasha928@gmail.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Josh Boyer <jwboyer@gmail.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
LKML <linux-kernel@vger.kernel.org>,
Florian Tobias Schandinat <florianSchandinat@gmx.de>
Subject: Re: [PATCH] fb: Rework locking to fix lock ordering on takeover
Date: Sun, 13 Jan 2013 01:02:42 +0100 [thread overview]
Message-ID: <20130113000242.GD10630@liondog.tnic> (raw)
In-Reply-To: <20130112131323.31d2a585.akpm@linux-foundation.org>
On Sat, Jan 12, 2013 at 01:13:23PM -0800, Andrew Morton wrote:
> Florian has been taking a month or two's downtime (now expired, I
> think) so I've been waiting for him to reappear to process this one for
> 3.8.
>
> Meanwhile, I guess we could put it into mainline ;) It has been in
> -next for a month.
>
> From: Alan Cox <alan@linux.intel.com>
> Subject: 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 is partly a band aid, the fb layer is terminally confused about the
> locking rules it uses for its notifiers it seems.
>
> [akpm@linux-foundation.org: remove stray non-ascii char, tidy comment]
> [akpm@linux-foundation.org: export do_take_over_console()]
> Signed-off-by: Alan Cox <alan@linux.intel.com>
> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Yes, that's the one, modulo Andrew's fixes, which I've been running.
Irregardless, I'll run this one tomorrow just in case, because it
triggers here so easily.
Thanks.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2013-01-13 0:02 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-16 19:27 [PATCH] fb: Rework locking to fix lock ordering on takeover Alan Cox
2012-11-21 12:45 ` Josh Boyer
2012-11-21 12:53 ` Alan Cox
2012-12-18 15:20 ` Josh Boyer
2012-12-25 16:08 ` Sasha Levin
2012-12-26 2:41 ` Cong Wang
2012-12-26 18:09 ` Sasha Levin
2012-12-27 4:53 ` Borislav Petkov
2012-12-28 11:50 ` Shawn Guo
2012-12-28 12:40 ` Borislav Petkov
2013-01-04 12:50 ` Alexander Holler
2013-01-04 13:25 ` Alan Cox
2013-01-04 13:36 ` Alexander Holler
2013-01-05 11:41 ` Alexander Holler
2013-01-05 11:42 ` [PATCH] fb: udlfb: fix scheduling while atomic Alexander Holler
2013-01-06 12:46 ` Alexander Holler
2013-01-09 13:47 ` [PATCH v2] " Alexander Holler
2013-01-05 12:07 ` [PATCH] fb: Rework locking to fix lock ordering on takeover Alan Cox
2013-01-05 12:06 ` Alexander Holler
2013-01-07 9:37 ` Jiri Kosina
2013-01-12 18:36 ` Borislav Petkov
2013-01-12 20:51 ` Linus Torvalds
2013-01-12 21:05 ` Alan Cox
2013-01-12 21:13 ` Andrew Morton
2013-01-13 0:02 ` Borislav Petkov [this message]
2013-01-15 12:06 ` Maarten Lankhorst
2013-01-15 15:12 ` Alan Cox
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