Hard link to root-owned file now fails (since Fedora 19)

[Richard W.M. Jones]

On Fedora 18 (and every Unix since forever):

$ touch foo
$ sudo chown root.root foo
$ ln foo bar

On Fedora 19 & Rawhide:

$ touch foo
$ sudo chown root.root foo
$ ln foo bar
ln: failed to create hard link ‘bar’ => ‘foo’: Operation not permitted

Why?

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
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