Re: cvs commit: src/sys/kern vfs_syscalls.c

["Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>]

On 15.08.2005, at 18:01, Joerg Sonnenberger wrote:
> The problem here is that when old and new resolve to the same
> file (read: reference the same inode) strange race conditions can occur
> which might led to the reference counter reaching 0 for example.

Yes, but if we do it correctly (namecache helping here), this won't 
happen.

> That is exactly the behaviour the standard wants to avoid. The wording
> of SUS is also pretty clear, "resolve to the same existing name" does
> mean nothing less than having the same inode for a traditional Unix
> filesystem. I also won't say this behaviour is counter-intuitive, it
> makes as much sense as just dropping the old node.

The standard is clear to me: it doesn't talk about links, but symbolic 
links.

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