Re: getmntinfo compatibility question

[Martin Husemann <martin%duskware.de@localhost>]

On Fri, Feb 14, 2025 at 11:59:33AM +0100, Havard Eidnes wrote:
> How that ends up calling __getvfsstat90() I must admit that I do not
> (at the time I wrote this sentence ... more below) understand.

My fault - I only check ktrace but not from where the calls happend.

The rust libc call ends up in compat_getmntino in NetBSD's libc
and there the compat handling is done, but that function expects
the argument buffer to be an old struct, not struct vfsstat.
It internally calls the __getvfsstat90() syscall and then converts
the (correct) struct statvfs (that we would have liked to received)
into the old structure.

Martin