linux-kernel - Re: [2.6.33-rc6-git regression] idr fix breaks Xorg

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Message-ID: <4B6A890F.3090102@kernel.org>
Date:	Thu, 04 Feb 2010 17:45:03 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Dave Airlie <airlied@...il.com>
CC:	Andy Isaacson <adi@...apodia.org>, linux-kernel@...r.kernel.org,
	dri-devel@...ts.sourceforge.net
Subject: Re: [2.6.33-rc6-git regression] idr fix breaks Xorg

Hello,

On 02/04/2010 05:40 PM, Dave Airlie wrote:
> Hmm at this late stage, maybe revert first? since the old idr code works fine
> with the subsystems in question.
> 
> The drm idr code usage isn't anything crazy, the EBADF is the return code
> from the mmap ioctl when it calls the idr lookup function for a handle.
> 
> The lookup function is just an idr_find inside a spinlock.

Yeap, you're right.  I'll send a patch to revert it.

Thanks.

-- 
tejun
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