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Date: Sat, 19 Jan 2002 07:29:33 -0500 (EST)
From: Alexander Viro <viro@math.psu.edu>
To: Xavier Bestel <xavier.bestel@free.fr>
cc: Matthias Schniedermeyer <ms@citd.de>, "H. Peter Anvin" <hpa@zytor.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: rm-ing files with open file descriptors
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On 19 Jan 2002, Xavier Bestel wrote:

> On Sat, 2002-01-19 at 13:16, Matthias Schniedermeyer wrote:
> > > > Well no. new_fd will refer to a completely new, empty file
> > > > which has no relation to the old file at all.
> > > > 
> > > > There is no way to recreate a file with a nlink count of 0,
> > > > well that is until someone adds flink(fd, newpath) to the kernel.
> > > > 
> > > 
> > > This *might* work:
> > > 
> > > link("/proc/self/fd/40", newpath);
> > 
> > cat /proc/<id>/fd/<nr> > whatever
> > actually works.
> 
> Once it's unliked ? I doubt it.

Egads...  It certainly works, unlinked or not.  Please learn the basics of
Unix filesystem semantics.

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