macvtap: update file current position

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 9093004..957cc5c 100644 (file)
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -876,6 +876,8 @@ static ssize_t macvtap_aio_read(struct kiocb *iocb, const struct iovec *iv,
 
        ret = macvtap_do_read(q, iocb, iv, len, file->f_flags & O_NONBLOCK);
        ret = min_t(ssize_t, ret, len); /* XXX copied from tun.c. Why? */
+       if (ret > 0)
+               iocb->ki_pos = ret;
 out:
        return ret;
 }