linux-kernel - Re: [PATCH 3/8] Simplify exec_permission

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Message-ID: <20090908144012.GB5579@shareable.org>
Date:	Tue, 8 Sep 2009 15:40:12 +0100
From:	Jamie Lokier <jamie@...reable.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Linux Filesystem Mailing List <linux-fsdevel@...r.kernel.org>,
	Eric Paris <eparis@...hat.com>, Mimi Zohar <zohar@...ibm.com>,
	James Morris <jmorris@...ei.org>
Subject: Re: [PATCH 3/8] Simplify exec_permission_lite() further

Linus Torvalds wrote:
> This function is only called for path components that are already known
> to be directories (they have a '->lookup' method).  So don't bother
> doing that whole S_ISDIR() testing,

A few years ago you briefly discussed diddling the VFS to accept
objects which are both files and directories.  That is, have
->lookup() and also can be read as regular files.

I don't know if your thinking has changed, and I don't particularly
care, only thought I'd remind in case it's something you'd like to
support at some point.

-- Jamie
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