[CFT][PATCH] mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount

[joeyli]

Hi Eric, 

On Tue, Dec 02, 2014 at 03:53:34AM -0600, Eric W. Biederman wrote:
> Richard Weinberger <richard at nod.at> writes:
> 
> > Am 01.12.2014 um 02:29 schrieb Eric W. Biederman:
> >>>>>> Any chance you can test that with Eric's patch or mine [1] applied?
> >>>>>> If that doesn't work, can you try to catch the failure with strace?
> >>>>>
> >>>>> With your patch applied on top of Linus's tree as of today libvirt-lxc works fine again. :)
> >>>>
> >>>> *Scratches head*
> >>>>
> >>>> Did you really have my latest patch applied?
> >>>>
> >>>> Andy's patch implies a change of policy that I really don't want to
> >>>> deploy as a bug fix.
> >>>
> >>> Hmm, let me double check this tomorrow with a fresh brain.
> >>> Maybe I got hit by another issue while testing your patch.
> >>> Currently I'm fighting against three libvirt-lxc issues in parallel. :-\
> >> 
> >> Please do.  I just reran through my regression tests that explore this
> >> issue rather throughly and all of my remount test cases are passing.  So
> >> if things are truly failing I want to understand what is going on, and
> >> add to my regression tests.
> >> 
> >> I should have done that sooner of course but I am still paging back in
> >> after being distracted with the other things in life.
> >
> > I can confirm that your patch "mnt: Implicitly add MNT_NODEV on remount as we do on mount"
> > unbreaks libvirt-lxc too. :-)
> > Sorry for the false negative.
> 
> Thanks I will add your Tested-by.
> 
> Eric

Cedric help to test my kernel that included your patch. Please feel free to
add:

Tested-by: Cedric Bosdonnat <cbosdonnat at suse.com>


Regards
Joey Lee