Re: [RFC] O_NOACC: open without any access

[Miklos Szeredi]

On Wed, 24 Jun 2009, Ulrich Drepper wrote:
> On Wed, Jun 17, 2009 at 23:55, Miklos Szeredi<miklos@xxxxxxxxxx> wrote:
> > The sole purpose is to help race free "userspace lookup" type
> > operations. ÂSo fstat, fch*, *at work but nothing else. ÂFilesystem's
> > ->open() is not called and f_op is set to NULL.
> 
> Before adding something like this, please look at the 2009 POSIX spec.

Is it available online somewhere?  If not, could you please post the
relevant parts?

>  There are two new open() flags which have to be implemented: O_EXEC
> and O_SEARCH.  These might already suffice for what you want.

I suspect they are not quite what we want (both of them requring
MAY_EXEC on file, no?)

Thanks,
Miklos
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