Re: RFC: renameat(): Add a RENAME_REMOVE flag to unlink hardlinks

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On Fri, Nov 21, 2014 at 5:50 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> On Sat, Nov 22, 2014 at 01:29:05AM +0000, Pádraig Brady wrote:
>
>> > I assume that VFS can handle this correctly if it wants to.
>>
>> I was assuming there was a way to distinguish directory entries,
>> and that's what should be checked first, which is what my
>> psuedo code patch attempted to show.
>
> There isn't, in general.  Sure, if you get the same struct dentry * from
> both lookups, it's the same one.  But it's not guaranteed to be true on
> every fs out there if those are non-directories (and for directories there's
> no multiple hardlinks in the first place).

Does that mean that the current behavior is inconsistent between filesystems.

-- 
Andy Lutomirski
AMA Capital Management, LLC
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