Re: CGroup Namespaces (v8)

[Serge E. Hallyn]

On Fri, Jan 01, 2016 at 12:19:44AM -0800, Dan Williams wrote:
> On Tue, Dec 22, 2015 at 8:23 PM,  <serge.hallyn@xxxxxxxxxx> wrote:
> > Hi,
> >
> > following is a revised set of the CGroup Namespace patchset which Aditya
> > Kali has previously sent.  The code can also be found in the cgroupns.v8
> > branch of
> >
> > https://git.kernel.org/cgit/linux/kernel/git/sergeh/linux-security.git/
> 
> Happy New Year!
> 
> I'm hitting both a build and boot regression in -next with these
> patches.  The bisect log reports:
> 
> git bisect skip f176ae3a5df610e0373c39538cc7744c7788b3df
> # bad: [54b39d263704b66cc8006ce8f7dd4743fdabae70] cgroup: cgroup
> namespace setns support
> git bisect bad 54b39d263704b66cc8006ce8f7dd4743fdabae70
> # good: [bf9b3590879afbaa54148d817ed68a0b51180375] sched: new clone
> flag CLONE_NEWCGROUP for c
> group namespace
> git bisect good bf9b3590879afbaa54148d817ed68a0b51180375
> # only skipped commits left to test
> # possible first bad commit:
> [54b39d263704b66cc8006ce8f7dd4743fdabae70] cgroup: cgroup namespa
> ce setns support
> # possible first bad commit:
> [f176ae3a5df610e0373c39538cc7744c7788b3df] cgroup: introduce cgro
> up namespaces
> 
> Where compiling "f176ae3a5df6"  fails with:
> 
> kernel/cgroup.c: In function âcgroupns_putâ:
> kernel/cgroup.c:5956:2: error: implicit declaration of function
> âto_cg_nsâ [-Werror=implicit-f
> unction-declaration]
>  put_cgroup_ns(to_cg_ns(ns));

Hi,

is it possible you have a bad tree?  Looking at 
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/kernel/cgroup.c?id=refs/tags/next-20151231
to_cg_ns should definately be defined there.

-serge
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