Re: [RFC PATCH 0/7] cross rename

[Andy Lutomirski]

On 10/01/2013 09:00 AM, Miklos Szeredi wrote:
> This series adds a new syscall, renameat2(), which is the same as renameat() but
> with a flags argument.  Internally i_op->reaname2() is also added, which can
> later be merged with ->rename() but is kept separately for now, since this would
> just blow up this patch without helping review.

How hard would it be to also add RENAME_NOREPLACE that fails if the
destination already exists?

IMO this would get rid of the last sane use of hard links (link + unlink
to simulate non-clobbering rename), and it would be nice on filesystems
that don't have hard links.

Windows has supported this since Windows 98, IIRC (using MoveFileEx).

--Andy

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