On 3/12/23 9:36 AM, Richard Weinberger wrote:

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quoted

On 3/11/23 11:52 AM, Richard Weinberger wrote:

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next_mnt() finds submounts below a given path p.
While investigating into an issue in my crossmount patches for nfs-utils I
noticed
that it does not work when fsid=root, rootdir=/some/path/ and then "/" is being
exported.
In this case next_mnt() is asked to find submounts of "/" but returns none.

I'm not clear as what you are saying... "rootdir=/some/path/" is not an
export option.

Sorry for being imprecise.
rootdir= is an nfs.conf exports option.Point. But I still need the patch in the
correct

format with the Signed-off-by...

Well, the goal of my mail was not sending a ready-to-apply patch.
It was a question. To me next_mnt() looks wrong but I'm not sure whether
the current handling of "/" is desired for some special case I'm not aware of.

I'll happily send a patch after we agree that next_mnt() is wrong.

I'm still trying to reproduce problem... I have

/etc/nfs.conf: rootdir=/export

/etc/exports:
/home *(rw,sec=sys:krb5:krb5i:krb5p)
/tmp *(rw,fsid=666,all_squash)
/ *(rw,fsid=root,all_squash)

I'm not seeing the problem... Where does the crossmount come in?

steved.