Re: [PATCH v2 2/2] bpf: cgroup_iter: support cgroup1 using cgroup fd

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On Tue, Oct 11, 2022 at 09:46:27AM -0700, Martin KaFai Lau wrote:
> On 10/10/22 5:33 PM, Yosry Ahmed wrote:
> > Use cgroup_v1v2_get_from_fd() in cgroup_iter to support attaching to
> > both cgroup v1 and v2 using fds.
> > 
> > Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
> > ---
> >   kernel/bpf/cgroup_iter.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/kernel/bpf/cgroup_iter.c b/kernel/bpf/cgroup_iter.c
> > index 0d200a993489..9fcf09f2ef00 100644
> > --- a/kernel/bpf/cgroup_iter.c
> > +++ b/kernel/bpf/cgroup_iter.c
> > @@ -196,7 +196,7 @@ static int bpf_iter_attach_cgroup(struct bpf_prog *prog,
> >   		return -EINVAL;
> >   	if (fd)
> > -		cgrp = cgroup_get_from_fd(fd);
> > +		cgrp = cgroup_v1v2_get_from_fd(fd);
> 
> Acked-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
> 
> Tejun, patch 1 should depend on a recent revert that is not in the bpf tree
> yet.  Do you want to take this set to the cgroup tree?

Yeah, will do.

Thanks.

-- 
tejun



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