linux-kernel - Re: [PATCH] vfs: initialize d_iname to null for long file names

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Message-ID: <20081126164505.GA16175@infradead.org>
Date:	Wed, 26 Nov 2008 11:45:05 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Eric Van Hensbergen <ericvh@...il.com>,
	Latchesar Ionkov <lucho@...kov.net>,
	v9fs-developer@...ts.sourceforge.net,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] vfs: initialize d_iname to null for long file names

On Wed, Nov 26, 2008 at 09:41:05PM +0800, Wu Fengguang wrote:
> dentry->d_iname is currently uninitialized for long file names.  Init
> it to null string to avoid bad behaviors on careless references to it.

I don't really see the point.  If your code references it's already
buggy.  The only proper way to acces it is through dentry->d_name.

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