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Date: Fri, 13 Feb 2004 03:32:18 +0000
From: Jamie Lokier <jamie@shareable.org>
To: Ulrich Windl <Ulrich.Windl@RZ.Uni-Regensburg.DE>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.2: "filp->f_mode & 2..."
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References: <402B4FB2.mailxG23119XFU@pc5234.klinik.uni-regensburg.de>
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Ulrich Windl wrote:
> filp->f_mode & 2 || permission(filp->f_dentry->d_inode,2,NULL)
> 
> It's obvious to some, likely for others that "2" there really stands for
> "002", the good old UNIX write permission.

That's FMODE_WRITE (= 2).  It isn't related at all to the Unix write
permission of 002, as you'll notice FMODE_READ is 1, not 4.

-- Jamie