diff options
| author | Christoph Hellwig <hch@lst.de> | 2016-05-03 19:01:07 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-05-13 20:37:18 +0300 |
| commit | fffb0383cf0b433ad029d19e6e9d6f1f46523ace (patch) | |
| tree | bbef7530c7911f2df6a02d19547ee81a1ca341d3 /drivers/infiniband/core/verbs.c | |
| parent | 04c41bf39f5b2de72bda04cf10bb95ea1870a94f (diff) | |
| download | linux-fffb0383cf0b433ad029d19e6e9d6f1f46523ace.tar.xz | |
IB/core: add a simple MR pool
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 8c0f3a067d24..8549345c6169 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -762,6 +762,9 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd, qp->qp_type = qp_init_attr->qp_type; atomic_set(&qp->usecnt, 0); + qp->mrs_used = 0; + spin_lock_init(&qp->mr_lock); + if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) return ib_create_xrc_qp(qp, qp_init_attr); @@ -1255,6 +1258,8 @@ int ib_destroy_qp(struct ib_qp *qp) struct ib_srq *srq; int ret; + WARN_ON_ONCE(qp->mrs_used > 0); + if (atomic_read(&qp->usecnt)) return -EBUSY; |