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Date:      Tue, 6 Sep 2005 18:33:15 +0300
From:      Giorgos Keramidas <keramida@freebsd.org>
To:        Igor Shmukler <shmukler@mail.ru>
Cc:        Dag-Erling Sm?rgrav <des@des.no>, Sergey Uvarov <uvarovsl@mail.pnpi.spb.ru>, freebsd-hackers@freebsd.org
Subject:   Re: vn_fullpath() again
Message-ID:  <20050906153315.GB28262@orion.daedalusnetworks.priv>
In-Reply-To: <E1ECfMF-0009JQ-00.shmukler-mail-ru@f16.mail.ru>
References:  <868xyack37.fsf@xps.des.no> <E1ECfMF-0009JQ-00.shmukler-mail-ru@f16.mail.ru>

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On 2005-09-06 19:27, Igor Shmukler <shmukler@mail.ru> wrote:
> Perhaps, I do not get it or maybe you are do not getting my point.
>
> There are times when resolving would not be possible or a name returned is
> not necessarily the one used when file was first accessed. We have discussed
> it here and everyone agreed on that. The hardlinks or files unlinked while
> vnode is still open are corner cases. The unlink is a bit more difficult to
> deal with, but hardlinks are probably not a big issue. As long as we can get
> A name, we may not even need to know THE name.

Why does it make sense to get name A in the following scenario then?

	user 1 creates file A
	user 1 hardlinks this to B
	user 1 gets the "real name" of A
	user 2 deletes file A
	user 2 creates a new file called A
	user 1 tries to access A and gets something unexpected

Corner cases and their handling *is* important.  Find another way to do
whatever it is you're thinking you can do with "the real name of a vnode".




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