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    SubjectRe: [PATCHv1 0/6] rdma controller support
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    On Fri, Jan 8, 2016 at 2:19 AM, Tejun Heo <tj@kernel.org> wrote:
    > Hello, Parav.
    >
    > On Fri, Jan 08, 2016 at 02:16:59AM +0530, Parav Pandit wrote:
    >> Let me think through it. Its been late night for me currently. So dont
    >> want to conclude in hurry.
    >
    > Sure thing.
    >
    >> At high level it looks doable by maintaining hash table head on per
    >> device basis, that further reduces hash contention by one level.
    >> I will get back on this tomorrow.
    >
    > Hmmm... why would it need a hash table? Let's say there's a struct
    > rdma_device for each rdma_device and then that stuct can simply have
    > rdma_device->res_table[] or whatever to track limits and consumptions
    > and rdma_device->res_enabled mask to tell which resources are enabled
    > on the device.
    >

    That table won't be sufficient, because rdma_device is shared among
    multiple rdma_cgroups each such cgroup has different individual
    resource limit and usage count. This is currently rpool structure.
    For res_table[] needs to be per cgroup basis.


    > Thanks.
    >
    > --
    > tejun

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