Re: [RFC PATCH v8 0/3] Add support for AT_INTERPRETED (was O_MAYEXEC)

From: Al Viro
Date: Tue Sep 08 2020 - 14:51:54 EST

On Tue, Sep 08, 2020 at 09:59:53AM +0200, Mickaël Salaün wrote:
> Hi,
> This height patch series rework the previous O_MAYEXEC series by not
> adding a new flag to openat2(2) but to faccessat2(2) instead. As
> suggested, this enables to perform the access check on a file descriptor
> instead of on a file path (while opening it). This may require two
> checks (one on open and then with faccessat2) but it is a more generic
> approach [8].

Again, why is that folded into lookup/open/whatnot, rather than being
an operation applied to a file (e.g. O_PATH one)?