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    SubjectRe: [PATCH 1/3] cfq-iosched: Fair cross-group preemption (interface and documentation)
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    On Tue, Mar 22, 2011 at 3:03 AM, Gui Jianfeng
    <guijianfeng@cn.fujitsu.com> wrote:
    > Do we need to implement a globle blkio.class interface as well as
    > a device specific one something like "blkio.class_device"? So a user
    > doesn't need to check every device number if he want to specify a
    > global value.

    I think you're right. It's more symmetrical with the weight
    interface, so will be less confusing. I'll add it.

    Chad


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