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    Subject[PATCH 3.16.y-ckt 081/180] Drivers: hv: vmbus: Don't wait after requesting offers
    Date
    3.16.7-ckt11 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: "K. Y. Srinivasan" <kys@microsoft.com>

    commit 73cffdb65e679b98893f484063462c045adcf212 upstream.

    Don't wait after sending request for offers to the host. This wait is
    unnecessary and simply adds 5 seconds to the boot time.

    Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    [ luis: backported to 3.16: adjusted context ]
    Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
    ---
    drivers/hv/channel_mgmt.c | 12 +-----------
    1 file changed, 1 insertion(+), 11 deletions(-)

    diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
    index 75330b3e388e..10953ece3307 100644
    --- a/drivers/hv/channel_mgmt.c
    +++ b/drivers/hv/channel_mgmt.c
    @@ -758,7 +758,7 @@ int vmbus_request_offers(void)
    {
    struct vmbus_channel_message_header *msg;
    struct vmbus_channel_msginfo *msginfo;
    - int ret, t;
    + int ret;

    msginfo = kmalloc(sizeof(*msginfo) +
    sizeof(struct vmbus_channel_message_header),
    @@ -766,8 +766,6 @@ int vmbus_request_offers(void)
    if (!msginfo)
    return -ENOMEM;

    - init_completion(&msginfo->waitevent);
    -
    msg = (struct vmbus_channel_message_header *)msginfo->msg;

    msg->msgtype = CHANNELMSG_REQUESTOFFERS;
    @@ -781,14 +779,6 @@ int vmbus_request_offers(void)
    goto cleanup;
    }

    - t = wait_for_completion_timeout(&msginfo->waitevent, 5*HZ);
    - if (t == 0) {
    - ret = -ETIMEDOUT;
    - goto cleanup;
    - }
    -
    -
    -
    cleanup:
    kfree(msginfo);


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