• [PATCH] mm, swap: Make VMA based swap readahead configurable

    From Dave Hansen@21:1/5 to Ying on Mon Oct 2 22:50:17 2017
    On 09/27/2017 06:02 PM, Huang, Ying wrote:
    I still think there may be a performance regression for some users
    because of the change of the algorithm and the knobs, and the
    performance regression can be resolved via setting the new knob. But I
    don't think there will be a functionality regression. Do you agree?

    A performance regression is a regression. I don't understand why we are splitting hairs as to what kind of regression it is.

    Are you only willing to fix it if it's a functional regression?

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