On 2014/1/5 8:12, Marian Marinov wrote:
> Happy new year guys.
>
> I need to have /proc cgroups aware, as I want to have LXC containers that see
> only the resources that are given to them.
>
> In order to do that I had to patch the kernel. I decided to start with
> cpuinfo, stat and interrupts and then continue
> with meminfo and loadavg.
>
> I managed to patch the Kernel (linux 3.12.0) and make /proc/cpuinfo,
> /proc/stat and /proc/interrupts be cgroups aware.
>
> Attached are the patches that make the necessary changes.
>
> The change for /proc/cpuinfo and /proc/interrupts is currently done only for
> x86 arch, but I will patch the rest of the
> architectures if the style of the patches is acceptable.
>
> Tomorrow I will check if the patches apply and build with the latest kernel.
>
People tried to do this before, but got rejected by upstream maintainers,
and then the opinion was to do this in userspace throught FUSE.
Seems libvirt already supports containerized /proc/meminfo in this way.
See:
http://libvirt.org/drvlxc.html
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