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SubjectWhat's wrong with tmpfs?
Under User Mode Linux in 2.6.14, would someone please explain to me why this 

static int graft_tree(struct vfsmount *mnt, struct nameidata *nd)
int err;

if (mnt->mnt_sb->s_flags & MS_NOUSER)
return -EINVAL;

Is triggering when I try to mount tmpfs? Is this happening for anybody else?
Shouldn't I be getting a fresh superblock or something? (Is this just a User
Mode Linux issue? Haven't got a spare box set up to boot it on real hardware
just yet...)

If somebody needs a reproduction sequence, I'm happy to oblige. In theory
"mount -t tmpfs /mnt /mnt" should do it, but if it was _that_ simple it
wouldn't have shipped...

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