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    SubjectRe: [PATCH 1/5] The config option itself
    sukadev@us.ibm.com wrote:
    > Serge E. Hallyn [serue@us.ibm.com] wrote:
    > | Quoting Serge E. Hallyn (serue@us.ibm.com):
    > | > Quoting Pavel Emelyanov (xemul@openvz.org):
    > | > > The option is called NAMESPACES. It can be selectable only
    > | > > if EMBEDDED is chosen (this was Eric's requisition). When
    > | > > the EMBEDDED is off namespaces will be on automatically.
    > | > >
    > | > > One more option (NAMESPACES_EXPERIMENTAL) was added by
    > | > > Serge's request to move there all the namespaces that are
    > | > > not finished yet. Currently only the user and the network
    > | > > namespaces are such.
    > | > >
    > | > > Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
    > | > >
    > | > > ---
    > | > >
    > | > > diff --git a/init/Kconfig b/init/Kconfig
    > | > > index 684ccfb..05a71d7 100644
    > | > > --- a/init/Kconfig
    > | > > +++ b/init/Kconfig
    > | > > @@ -369,6 +360,23 @@ config RELAY
    > | > >
    > | > > If unsure, say N.
    > | > >
    > | > > +config NAMESPACES
    > | > > + bool "The namespaces support" if EMBEDDED
    > | > > + default !EMBEDDED
    > | > > + help
    > | > > + Provides the way to make tasks work with different objects using
    > | > > + the same id. For example same IPC id may refer to different objects
    > | > > + or same user id or pid may refer to different tasks when used in
    > | > > + different namespaces.
    > | > > +
    > | > > +config NAMESPACES_EXPERIMENTAL
    > | > > + bool "Add the experimantal namespaces support" if EMBEDDED
    > | >
    > | > Hi Pavel,
    > | >
    > | > Overall this patchset looks good.
    > | >
    > | > However the NAMESPACES_EXPERIMENTAL option should not have the
    > | > 'if EMBEDDED', right? This is about EXPERIMENTAL, not about
    > | > EMBEDDED, unlike the plain NAMESPACES option.
    > | >
    > | > -serge
    > |
    > | Actually that doesn't seem to work either. Even though
    > | SECURITY_NAMESPACES=y, the config system seems to infer that
    > | since NAMESPACES is not user-selectable, NAMESPACES_EXPERIMENTAL
    > | shouldn't be either. So we end up with NAMESPACES_EXPERIMENTAL
    > | being on and not un-selectable if !EMBEDDED.
    >
    > Yes. Given that NAMESPACES depends on EMBEDDED, NAMESPACES_EXPERIMENTAL
    > can simply depend on NAMESPACES and EXPERIMENTAL with a default of N.

    Nope. The intention is that the NAMESPACES and NAMESPACES_EXPERIMENTAL
    must not be selectable if EMBEDDED=n, but if we make NS_EXPERIMENTAL
    depend on NAMESPACES only we'll have to make a choice in !EMBEDDED.

    > BTW, does the position of 'config NAMESPACES' in init/Kconfig file
    > matter ? If it is dependent on EMBEDDED, should it not come later
    > in the file, after 'config EMBEDDED' ?
    >
    > |
    > | > > + depends on NAMESPACES && EXPERIMENTAL
    > | > > + default !EMBEDDED
    > | > > + help
    > | > > + Also include the support for the namespaces that are not fnished
    > | > > + or well developed yet
    > | > > +
    > | > > config BLK_DEV_INITRD
    > | > > bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
    > | > > depends on BROKEN || !FRV
    > | _______________________________________________
    > | Containers mailing list
    > | Containers@lists.linux-foundation.org
    > | https://lists.linux-foundation.org/mailman/listinfo/containers
    >

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