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SubjectRe: [PATCH 03/25] vfs: Allow fsinfo() to query what's in an fs_context [ver #14]
On Wed, Jun 26, 2019 at 11:02:59AM +0100, David Howells wrote:
> Christian Brauner <christian@brauner.io> wrote:
>
> > > + ret = mutex_lock_interruptible(&fc->uapi_mutex);
> > > + if (ret == 0) {
> > > + ret = -EIO;
> >
> > Why EIO when there's no root dentry?
>
> Because I don't want to use ENODATA/EBADF and preferably not EINVAL and
> because the context you're accessing isn't in the correct state for you to be
> able to do that. How about EBADFD ("File descriptor in bad state")?

Do we have that? If so that sounds good.

Christian

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