2024-05-27 11:51:34

by Christoph Hellwig

[permalink] [raw]
Subject: Re: [PATCH RFC v2] fhandle: expose u64 mount id to name_to_handle_at(2)

On Sun, May 26, 2024 at 10:32:39PM +0000, Trond Myklebust wrote:
> I assume the reason is to give the caller a race free way to figure out
> which submount the path resolves to.

But the handle op are global to the file systems (aka super_block). It
does not matter what mount you use to access it.

Snip random things about userland NFS servers I couldn't care less
about..