Re: [PATCH] kill i_dev
H. Peter Anvin (firstname.lastname@example.org)
21 Nov 2002 16:22:54 -0800
Followup to: <Pine.LNX.email@example.com>
By author: Linus Torvalds <firstname.lastname@example.org>
In newsgroup: linux.dev.kernel
> > There is a single side effect: a stat on a socket now sees
> > a nonzero st_dev. There is nothing against that - FreeBSD
> > has a nonzero value as well - but there is at least one
> > utility (fuser) that will need an update.
> Looking at the patch (not testing it), as far as I can tell we'll return a
> basically random number that is just whatever the anonymous super-block
> was allocated, right?
> I'm not convinced that returning random numbers to user space is
> necessarily a great idea.. That said, I think we already do it for unnamed
> pipes anyway, so I'm more wondering if we should have some way to map
> these numbews (in user space) to a valid thing, so that they wouldn't just
> be random numbers.
What's really important is that they don't map to anything else. I
don't think it matters what the numbers is, since there is a much
better way to find out that you're a pipe or a socket.
<email@example.com> at work, <firstname.lastname@example.org> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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