Re: more fexecve questions

[Jason Thorpe <thorpej%me.com@localhost>]

> On Sep 10, 2019, at 9:26 PM, Christos Zoulas <christos%astron.com@localhost> wrote:
> 
> I think is time to ditch NCHNAMLEN like FreeBSD did, and rely on
> the namei cache for reverse mappings. This way we can also implement
> F_GETPATH which Kamil seems to keep bringing up :-).

FWIW, XNU's VFS uses this approach as well.  There are cases where it will call into the file system to get the name associated with a vnode, but it uses name cache data pretty frequently (and F_GETPATH is pretty heavily used on platforms that use XNU).

-- thorpej