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    SubjectRe: [RFC 2/2] x86_64: expand kernel stack to 16K
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    On Thu, May 29, 2014 at 5:05 PM, Linus Torvalds
    <torvalds@linux-foundation.org> wrote:
    >
    > So maybe test a patch something like the attached.
    >
    > NOTE! This is absolutely TOTALLY UNTESTED!

    It's still untested, but I realized that the whole
    "blk_flush_plug_list(plug, true);" thing is pointless, since
    schedule() itself will do that for us.

    So I think you can remove the

    + struct blk_plug *plug = current->plug;
    + if (plug)
    + blk_flush_plug_list(plug, true);

    part from congestion_timeout().

    Not that it should *hurt* to have it there, so I'm not bothering to
    send a changed patch.

    And again, no actual testing by me on any of this, just looking at the code.

    Linus


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