The last commit was found when I created a XRC SRQ in
lock-free mode but failed to destroy it because of the
refcnt check added in the previous commit.
The failure was because the PAD was acquired through
ibv_srq->pd in destroy_srq(), while ibv_srq->pd wasn't
assigned when the SRQ was created by ibv_create_srq_ex().
So let's assign ibv_srq->pd in the common ibv_icmd_create_srq() ,
so that drivers can get the correct pd no matter
which api the SRQ is created by.
Signed-off-by: Xinghai Cen <cenxinghai@h-partners.com>
(cherry picked from commit 3ac30fc125c7cff122f21ff8593294060c92429f)
