Re: request for patches: showing mount options

[Miklos Szeredi]

> After a successful mount, the NFS mount command tucks some options into 
> /etc/mtab that reflect which mountd was used for the mount, and what 
> protocol version and port was used for the mount request.  Those options 
> are not passed to the kernel, and do not appear in /proc/mounts today. 
> See nfs(5)'s discussion of the mountport, mounthost, mountprog, and 
> mountvers options.
> 
> However, the trend for NFS is to push mount option parsing into the 
> kernel.  Thus all options will be passed to the kernel, and at that 
> point it should be able to reflect the mount* options in /proc/mounts. 
> But it doesn't do that quite yet.

Trond, do you have a roadmap for this?

> I'm wondering if there are other such cases in other file systems.

Anything that has /sbin/mount.XXX could be doing this.  According to
Karel, those are nfs, cifs and ocfs2.

Miklos
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