Re: [RFC] mount: overwrite options from /etc/fstab when given on the commandline

[Karel Zak <kzak@redhat.com>]

On Wed, Aug 01, 2012 at 12:14:22PM +0200, Niels de Vos wrote:
> On 08/01/2012 12:03 PM, Karel Zak wrote:
> > On Wed, Aug 01, 2012 at 11:48:33AM +0200, Karel Zak wrote:
> >>> Some options are not allowed to be
> >>> passed multiple times (like the SElinux context options) and mounting will fail
> >>> if options are present in both /etc/fstab and on the commandline.
> >>
> >> This is stupid SELinux disadvantage and SELinux should be fixed.
> >
> > Note that mount(8) and libmount removes all selinux context options on
> > remount for kernels<  2.6.39 because SELinux context remount was
> > unsupported, so this SELinux disadvantage should be hidden for usual
> > use case.
> >
> > Maybe we can also add another exception for SELinux to de-duplicate
> > the SELinux context options in the options string. It's not perfect,
> > but probably acceptable for SELinux -- I can do this for 2.22-rc2.
> 
> That would be great. What is your opinion on getting the SElinux options
> handled differently in the kernel instead or in addition? 

SELinux is no filesystem and we already have (must have) SELinux
specific code in mount(8) (and many others utils;-).

    Karel

-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com