LU-6378 kernel: simplify quota-avoid-dqget-call.patch

LU-6378 kernel: simplify quota-avoid-dqget-call.patch

Backport the patch from upstream kernel, which doesn't rely
on the I_NEW to skip dqget()/dqput() calls, it should check
the i_dquot directly instead.

Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Change-Id: I10e2e8284704bc7cf9ffae4ee88f06fafef14b1a
Reviewed-on: http://review.whamcloud.com/14135
Tested-by: Jenkins
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>