Re: [PATCHv1 3/6] rdmacg: implements rdma cgroup

Hello, Parav.

On Fri, Jan 08, 2016 at 02:09:23AM +0530, Parav Pandit wrote:

quoted

Hmmm, what happens after the following?

1. A process allocates some rdma resources and get registered on the
   hash table.

2. The process gets migrated to a different cgroup.

3. The process allocates more rdma resources.

Which cgroup would the resources from #3 be attributed to?

Since the pid/tgid of the process doesn't change in step_3, it
allocates from original cgroup of step_1.

It shouldn't work that way.

However in next patch V2, as described below, since IB resource will
store rdma_cg pointer,
in step_3, new resource will be allocated from new cgroup.
old resource will be freed from older cgroup.
This is what you are expecting, right?

Yeap.

Thanks.

-- 
tejun