The commit is pushed to "branch-rh7-3.10.0-327.18.2.vz7.14.x-ovz" and will 
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-327.18.2.vz7.14.15
------>
commit 75347fcbd30151977601d819a56f0a0bb57182f5
Author: Maxim Patlasov <mpatla...@virtuozzo.com>
Date:   Fri Jun 17 13:32:34 2016 +0400

    ploop: io_kaio: fix silly bug in kaio_complete_io_state()
    
    It's useless to check for preq->req_rw & REQ_FUA after:
    preq->req_rw &= ~REQ_FUA;
    
    Signed-off-by: Maxim Patlasov <mpatla...@virtuozzo.com>
    Acked-by: Dmitry Monakhov <dmonak...@virtuozzo.com>
    
    Note: original code:
    ...
          preq->req_rw &= ~REQ_FUA;
    
            /* Convert requested fua to fsync */
               if (test_and_clear_bit(PLOOP_REQ_FORCE_FUA, &preq->state) ||
                           test_and_clear_bit(PLOOP_REQ_KAIO_FSYNC,
               &preq->state))
                               post_fsync = 1;
    
            if (!post_fsync &&
                        !ploop_req_delay_fua_possible(preq->req_rw, preq) &&
                                    (preq->req_rw & REQ_FUA))
                                                    post_fsync = 1;
    
            preq->req_rw &= ~REQ_FUA;
    ...
---
 drivers/block/ploop/io_kaio.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/block/ploop/io_kaio.c b/drivers/block/ploop/io_kaio.c
index 54f8e21..81da1c5 100644
--- a/drivers/block/ploop/io_kaio.c
+++ b/drivers/block/ploop/io_kaio.c
@@ -78,8 +78,6 @@ static void kaio_complete_io_state(struct ploop_request * 
preq)
                return;
        }
 
-       preq->req_rw &= ~REQ_FUA;
-
        /* Convert requested fua to fsync */
        if (test_and_clear_bit(PLOOP_REQ_FORCE_FUA, &preq->state) ||
            test_and_clear_bit(PLOOP_REQ_KAIO_FSYNC, &preq->state))
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