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List:       linux-kernel
Subject:    Re: [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM
From:       Al Viro <viro () ZenIV ! linux ! org ! uk>
Date:       2016-07-09 2:52:30
Message-ID: 20160709025230.GR14480 () ZenIV ! linux ! org ! uk
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On Fri, Jul 08, 2016 at 11:59:50AM -0400, Oleg Drokin wrote:

> "If path names a symbolic link, mkdir() shall fail and set errno to [EEXIST]."
> 
> This sounds pretty straightforward to me, no?
> Since it does not matter that we do not have write permissions here, because
> the name already exists.

When more than one condition applies, we have every right to return any of
them.  POSIX does *NOT* specify the order of checks.  Never had.
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