Re: [PATCH 28/33] vfs: syscall: Add fsconfig() for configuring and managing a context [ver #11]

From: David Howells
Date: Sat Aug 11 2018 - 16:20:13 EST

Miklos Szeredi <miklos@xxxxxxxxxx> wrote:

> You can determine at fsopen() time whether the filesystem is able to
> support the O_EXCL behavior? If so, then it's trivial to enable this
> conditionally. I think that's what Eric is asking for, it's obviously
> not fair to ask for a change in behavior of the legacy interface.

It's not trivial, see btrfs and nfs :-/