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IB/rdmavt: Add swqe mr deref helper

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Add a helper to release mr references held by
an swqe.

Reviewed-by: Brian Welty <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Mike Marciniszyn 2016-12-07 19:34:25 -08:00 • committed by Doug Ledford
commit f6475223b1
1 changed files with 17 additions and 0 deletions
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17
include/rdma/rdmavt_qp.h
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@ -485,6 +485,23 @@ static inline void rvt_put_qp(struct rvt_qp *qp)
wake_up(&qp->wait);
}
/**
* rvt_put_swqe - drop mr refs held by swqe
* @wqe - the send wqe
*
* This drops any mr references held by the swqe
*/
static inline void rvt_put_swqe(struct rvt_swqe *wqe)
{
int i;
for (i = 0; i < wqe->wr.num_sge; i++) {
struct rvt_sge *sge = &wqe->sg_list[i];
rvt_put_mr(sge->mr);
}
}
/**
* rvt_qp_wqe_reserve - reserve operation
* @qp - the rvt qp