linux-kernel - Re: [PATCH] tty: add lockdep annotations

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Date:	Thu, 31 May 2012 13:59:38 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Alan Cox <alan@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jens Axboe <jaxboe@...ionio.com>
Subject: Re: [PATCH] tty: add lockdep annotations

On Thu, 2012-05-31 at 13:45 +0200, Jiri Kosina wrote:
> On Thu, 31 May 2012, Eric Dumazet wrote:
> 
> > From: Eric Dumazet <edumazet@...gle.com>
> > 
> > tty_lock_pair() do the right thing to avoid deadlocks, but should
> > instruct LOCKDEP of this to avoid a splat. 
> 
> I have submitted very similar patch to Greg/Alan already 3 days ago[1], 
> but have been told that this is already fixed. Apparently it wasn't?
> 
> [1] https://lkml.org/lkml/2012/5/28/226

I saw that right now.

Not sure your patch is the right fix with hard coded 1 and 2 values ?

0 and 1 should be enough.




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