linux-kernel - Re: [PATCH] vfs: new O

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Message-ID: <9988.1253899252@turing-police.cc.vt.edu>
Date:	Fri, 25 Sep 2009 13:20:52 -0400
From:	Valdis.Kletnieks@...edu
To:	"Dr. David Alan Gilbert" <linux@...blig.org>
Cc:	Miklos Szeredi <miklos@...redi.hu>,
	Andreas Gruenbacher <agruen@...e.de>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vfs: new O_NODE open flag

On Fri, 25 Sep 2009 13:37:47 BST, "Dr. David Alan Gilbert" said:

> Given an fd opened in this way is it possible to reopen it normally and
> be guarenteed to get the same object?

It's not possible even without this flag. Consider:

        fd1 = open("/tmp/foo",flags);
        rc = rename("/tmp/foo","/tmp/bar");
        fd2 = open("/tmp/foo",flags);

Or were you asking if *absent that sort of tomfoolery* if it would work?

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