linux-kernel - Re: [PATCH] Avoid a NULL pointer in btrfs

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Message-ID: <20110119141334.GA2544@localhost.localdomain>
Date:	Wed, 19 Jan 2011 09:14:02 -0500
From:	Josef Bacik <josef@...hat.com>
To:	Liuwenyi <qingshenlwy@...il.com>
Cc:	strongzgy@...il.com, onlyflyer@...il.com,
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	ak@...ux.intel.com, akpm@...ux-foundation.org,
	miaox@...fujitsu.com, josef@...hat.com, chris.mason@...cle.com,
	Yang Ruirui <ruirui.r.yang@...to.com>, meego-kernel@...go.com
Subject: Re: [PATCH] Avoid a NULL pointer in btrfs

On Wed, Jan 19, 2011 at 10:08:13PM +0800, Liuwenyi wrote:
> In Yang Ruirui's mail, the btrfs will create a oops. This is caused by a
> null pointer in test_range_bit() while lock the spinlock.
> 
> So, It is necessary to add a pointer check into test_range_bit()
> 


NAK, the tree shouldn't be null coming into this function, something else is
going wrong.  What oops is this?  Thanks,

Josef
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