Messages in this thread | | | Date | Thu, 7 Jan 2016 15:28:18 -0500 | From | Tejun Heo <> | Subject | Re: [PATCHv1 3/6] rdmacg: implements rdma cgroup |
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Hello, Parav.
On Fri, Jan 08, 2016 at 01:55:09AM +0530, Parav Pandit wrote: ... > Above functionality is achieved, by maintaining the map this tgid and > associated original cgroup at try_charge(), uncharge() time.
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?
> In alternate method, > Its simple to store the pointer of rdma_cgroup structure in the IB > resource structure and hold on reference count to rdma_cgroup. > so that when its freed, uncharge_resource can accept rdma_cgroup > structure pointer.
That'd be a lot more in line with how other controllers behave.
Thanks.
-- tejun
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