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    SubjectRE: [PATCH v3 08/11] Input: hyperv-keyboard: Make ringbuffer at least take two pages
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    From: Boqun Feng <boqun.feng@gmail.com> Sent: Thursday, September 10, 2020 7:35 AM

    >
    > When PAGE_SIZE > HV_HYP_PAGE_SIZE, we need the ringbuffer size to be at
    > least 2 * PAGE_SIZE: one page for the header and at least one page of
    > the data part (because of the alignment requirement for double mapping).
    >
    > So make sure the ringbuffer sizes to be at least 2 * PAGE_SIZE when
    > using vmbus_open() to establish the vmbus connection.
    >
    > Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
    > ---
    > drivers/input/serio/hyperv-keyboard.c | 4 ++--
    > 1 file changed, 2 insertions(+), 2 deletions(-)
    >

    Reviewed-by: Michael Kelley <mikelley@microsoft.com>

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