On Fri, 28 Dec 2007, Darren Reed wrote:
[ ... ]
> Is this behaviour defined by a standard (such as POSIX or the
> VFS design) or are we free to innovate here and do something
> that allowed such a shortcut as required?
Wrt. to standards, quote from:
http://www.opengroup.org/onlinepubs/009695399/functions/rename.html
ERRORS
The rename() function shall fail if:
[ ... ]
[EXDEV]
[CX] The links named by new and old are on different file systems and
the
implementation does not support links between file systems.
Hence, it's implementation-dependent, as per IEEE1003.1.
FrankH.
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