linux-kernel - Re: [PATCH] f2fs: fix up f2fs_get_parent issue to retrieve correct parent inode number

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Date:	Wed, 12 Dec 2012 16:05:05 +0100
From:	Fubo Chen <fubo.chen@...il.com>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	jaegeuk.kim@...sung.com, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Amit Sahrawat <a.sahrawat@...sung.com>
Subject: Re: [PATCH] f2fs: fix up f2fs_get_parent issue to retrieve correct
 parent inode number

On Wed, Dec 12, 2012 at 3:37 PM, Namjae Jeon <linkinjeon@...il.com> wrote:
> +       /* dot and dotdot dentries should have zero-value hash code */
> +       if (!memcmp(name, ".", 1) || !memcmp(name, "..", 2))
> +               return 0;

That looks suspicious. If memcmp(name, "..", 2) == 0 then always
memcmp(name, ".", 1) == 0. Why two tests ?

Fubo.
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