"Theodore Ts'o" <[email protected]> wrote:
> On Fri, Feb 10, 2006 at 03:54:44PM +0100, Joerg Schilling wrote:
> > >
> > > 1) File != device.
> >
> > I am sorry, but it turns out that you did not understand the problem.
> >
> > Try to inform yourself about the relevence (and content) of st_dev before
> > replying again.
>
> st_dev is irrelevant in the context of CD burning.
If you did try to understand the reason why I did introduce the POSIX
claim, you would know that if Linux did try to follow the POSIX rule,
a side effect would be that removable devices need to have a stable
mapping in the kernel
> In the context of mounted files, the only guarantee given by POSIX is
> that st_dev and st_ino for a particular file is unique. But that
> clearly is true while the containing filesystem is mounted. Even with
> Solaris, if a particular removable filesystem is unmounted and removed
> from one device (say one Jazz/Zip drive) and inserted into another
> device (say another Jazz/Zip drive), st_dev will change --- while the
> system is running.
Please don't confuse the fact that you will _always_ be able to find
ways to confuse a system with the fact that this needs to happen in all cases.
Jörg
--
EMail:[email protected] (home) Jörg Schilling D-13353 Berlin
[email protected] (uni)
[email protected] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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