Re: [PATCH 01/11] fs: add O_BENEATH_ONLY flag to openat(2)

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On 8 July 2014 13:07, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> There's two different AT_* namespaces.  The flags that most *at syscalls
> has, and the the one for the dfd argument, which currently only contains
> AT_FDCWD, although a new constant has recently been proposed to it.
>
> Having an AT_BENEATH magic value for the dfd argument certainly feels
> elegant to me

How would that work? The directory beneath which openat is looking is
conveyed in the dfd argument itself. If I'm understanding this right,
you'd have to pass a different value for "open relative to fd#5" and
"open relative to fd#5, but beneath it only", which doesn't sound
hugely elegant to me.

Meredydd
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