On Wed, Nov 04, 2020 at 05:50:40PM +0530, Sachin Sant wrote:
> 
> 
> > On 04-Nov-2020, at 3:35 PM, Michael Ellerman <[email protected]> wrote:
> > 
> > On older distros struct clone_args does not have a cgroup member,
> > leading to build errors:
> > 
> >  cgroup_util.c: In function 'clone_into_cgroup':
> >  cgroup_util.c:343:4: error: 'struct clone_args' has no member named 
> > 'cgroup'
> > 
> > But the selftests already have a locally defined version of the
> > structure which is up to date, called __clone_args.
> > 
> > So use __clone_args which fixes the error.
> > 
> 
> Argument passed to sys_clone3() will also require a similar change.
> 
> -     pid = sys_clone3(&args, sizeof(struct clone_args));
> +     pid = sys_clone3(&args, sizeof(struct __clone_args));
> 
> Without this compilation still fails(at least for me) due to following error
> 
> cgroup_util.c: In function 'clone_into_cgroup':
> cgroup_util.c:346:33: error: invalid application of 'sizeof' to incomplete 
> type 'struct clone_args'
>   pid = sys_clone3(&args, sizeof(struct clone_args));
> 
> > Signed-off-by: Michael Ellerman <[email protected]>
> > ---

Thanks Michael for taking care fo this. Much appreciated. I think with
the fix that Sachin pointed out this should work out fine!

Once that's fixed up:
Acked-by: Christian Brauner <[email protected]>

Thanks!
Christian

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